TW201024359A - Bio-plastic - Google Patents
Bio-plastic Download PDFInfo
- Publication number
- TW201024359A TW201024359A TW97151544A TW97151544A TW201024359A TW 201024359 A TW201024359 A TW 201024359A TW 97151544 A TW97151544 A TW 97151544A TW 97151544 A TW97151544 A TW 97151544A TW 201024359 A TW201024359 A TW 201024359A
- Authority
- TW
- Taiwan
- Prior art keywords
- biodegradable plastic
- oil
- polyurethane
- plastic according
- starch
- Prior art date
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
201024359 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種生物可分解塑膠，特別是關於一 種包含聚乳酸（polylactic acid，PLA )與聚胺基甲酸醋 (polyurethane，PU)之生物可分解塑膠。 【先前技術】 生物可分解塑膠（biodegradable plastics)係一在特定 ® 環境條件下，其化學結構會發生明顯變化，且用標準測試 方式可測定其物質性能變化的塑膠。也就是說，生物可分 解塑膠在特定濕度、氧氣與微生物環境下，其化學結構發 生變化，促使其力學性能下降，進而發生破裂、粉化等現 象，最終完全分解成二氧化碳、水或曱烷。 生物分解塑膠主要材料包含澱粉、聚乳酸及纖維蛋白 質。其中，聚乳酸係為最常使用之生物分解塑膠原料，其 利用馬鈴薯或玉米做為原料發酵再聚合而成，因此使用生 0 物分解塑膠可減少石化能源的消耗。 美國專利6,852,807揭示了一種可生物分解與水解之 樹脂，上述樹脂係藉由混掺熱塑性脂肪族聚酯類樹脂 (thermoplastic aliphatic polyester resin)與聚酯型聚氨酯 (polyester urethane)而成。並且，此樹脂具有良好物理性 質如抗拉伸強度。另外，上述樹脂具有廣泛應用性如可拋 式提袋或食物包裝上。 目前生物可分解塑膠正使用在包裝產品、物流條碼等 201024359 產品中，但市售之生物可分解塑膠的力學性質與價格表現 仍未滿意。有鑑於此，仍有必要發展新的生物可分解塑膠’ 除了具有材料天然、無毒、可自然分解等特性外’抗張強 度、斷裂伸長率的調控或成本降低，係亟欲發展之技術。 【發明内容】 鑒於上述之發明背景中，為了符合產業上之要求，本 發明提供一種新的生物可分解塑膠。 本發明揭露了一種生物可分解塑膠，其包含一聚胺基 曱酸醋（thermoplastic polyurethane，TPU)與聚乳酸 (polylactic acid，PLA )。其中，聚胺基甲酸醋係由下列反 應物進行反應而成，其包含：一聚二醇（polyol)、一二異 氰酸 S旨（diisoeyanate)與一鏈延長劑（chain extender)，且 聚二醇選自下列之一者或其任意組合：PBA、PEA、PCL。 本發明所揭露之生物可分解塑膠，可隨著聚二醇分子 量增加’以提高其機械強度。另外，當生物可分解塑膠未 發生相分離時’可增加聚胺基甲酸酯比例，以增加其斷裂 伸長率。此外’聚胺基甲酸醋（polyurethane ; PU)佔該生 物可分解塑膠重量比例小於20%，以使得抗撕裂強度高於 低密度聚乙烯（LDPE) 再者，生物可分解塑膠可更包含一澱粉（starch)作為 填充物（filler)，以降低其成本。因此，本發明所揭露之生 物可分解塑膠具有良好的應用性。 【實施方式】 本發明在此揭示一種生物可分解塑膠》為了能徹底地 201024359 瞭解本發明，將在下列的描述中提出詳盡的步驟及其組 成。顯然地，本發明的施行並未限定於該領域之技藝者所 熟習的特殊細節。另一方面’眾所周知的組成或步称並未 描述於細節中，以避免造成本發明不必要之限制。本發明 的較佳實施例會詳細描述如下，然而除了這些詳細描述之 外，本發明還可以廣泛地施行在其他的實施例中，且本發 明的範圍不受限定，其以之後的專利範圍為準。 本發明之一第一實施例揭露一種生物可分解塑膠，一聚201024359 VI. Description of the Invention: [Technical Field] The present invention relates to a biodegradable plastic, and more particularly to a bio-compatibility comprising polylactic acid (PLA) and polyurethane (PU) Decompose the plastic. [Prior Art] Biodegradable plastics are plastics whose chemical structure changes significantly under specific ® environmental conditions and whose physical properties are measured by standard tests. That is to say, the biodegradable plastic changes its chemical structure under specific humidity, oxygen and microbial environment, causing its mechanical properties to decline, and then cracking, pulverization, etc., and finally completely decomposed into carbon dioxide, water or decane. The main materials of biodegradable plastics include starch, polylactic acid and fibrin. Among them, polylactic acid is the most commonly used biodegradable plastic raw material, which is fermented by using potato or corn as a raw material. Therefore, the use of raw materials to decompose plastics can reduce the consumption of petrochemical energy. U.S. Patent 6,852,807 discloses a biodegradable and hydrolyzable resin which is obtained by blending a thermoplastic aliphatic polyester resin with a polyester urethane. Also, the resin has good physical properties such as tensile strength. Further, the above resins have wide applicability such as disposable bags or food packaging. At present, biodegradable plastics are used in packaging products, logistics barcodes, etc. 201024359, but the mechanical properties and price performance of commercially available biodegradable plastics are still not satisfactory. In view of this, it is still necessary to develop new biodegradable plastics. In addition to the characteristics of natural, non-toxic, and naturally decomposable materials, the regulation of tensile strength, elongation at break, or cost reduction is a technique for development. SUMMARY OF THE INVENTION In view of the above-described background of the invention, in order to meet industrial requirements, the present invention provides a novel biodegradable plastic. The invention discloses a biodegradable plastic comprising a thermoplastic polyurethane (TPU) and a polylactic acid (PLA). The polyamino carboxylic acid vinegar is formed by reacting the following reactants, comprising: a poly diol, a diisocyanate S and a chain extender, and a poly The diol is selected from one of the following or any combination thereof: PBA, PEA, PCL. The biodegradable plastic disclosed in the present invention can increase its mechanical strength as the molecular weight of the polyglycol increases. In addition, when the biodegradable plastic does not phase separate, the proportion of the polyurethane can be increased to increase its elongation at break. In addition, 'polyurethane (PU) accounts for less than 20% by weight of the biodegradable plastic, so that the tear strength is higher than low density polyethylene (LDPE). Further, the biodegradable plastic can further comprise a Starch acts as a filler to reduce its cost. Therefore, the biodegradable plastic disclosed in the present invention has good applicability. [Embodiment] The present invention discloses a biodegradable plastic herein. In order to thoroughly understand the present invention, the detailed description and the composition thereof will be set forth in the following description. Obviously, the practice of the invention is not limited to the specific details that are apparent to those skilled in the art. On the other hand, well-known components or steps are not described in detail to avoid unnecessarily limiting the invention. The preferred embodiments of the present invention are described in detail below, but the present invention may be widely practiced in other embodiments, and the scope of the present invention is not limited by the scope of the following patents. . A first embodiment of the present invention discloses a biodegradable plastic
乳酸（polylactic acid ; PLA )與一聚胺基甲酸酯 (polyurethane ; PU)，其中’聚胺基甲酸酯係由下列反應 物進行反應而成，其包含：一聚二醇（polyol)、二異氣酸 酯（diisocyanate)與一鏈延長劑（chain extender)，且聚二 酵選自下列之一者或其任意組合 0Polylactic acid (PL) and polyurethane (PU), wherein the 'polyurethane' is formed by reacting the following reactants, which comprises: a polyglycol, Diisocyanate and a chain extender, and the polydipropion is selected from one of the following or any combination thereof.
0 II OH-(CH2)4-〇-C-(CH2)4-C-〇· (ch2)4-oh0 II OH-(CH2)4-〇-C-(CH2)4-C-〇· (ch2)4-oh
PBAPBA
ο-iUο-iU
ο II 0Η_ -(CH2)2_〇 _c—(CH2)4—〇—0 -(ch2)2-oh (ΡΕΑ oh--(ch2)5 (PCL)〇 其中，聚乳酸（polylactic acid; PLA)較宜者分子量範 圍為25,000至300,000。其中，聚胺基曱酸酯（polyurethane ; PU)較宜者分子量範圍為25,000至300,000。其中，PBA、 PEA與PCL較宜者分子量範圍大於或等於500,而更佳者分 子量約為2000。其中，上述之生物可分解塑膠較宜者係由聚 201024359 乳酸（polylactic acid ; PLA )與聚胺基甲酸酿（polyurethane ; PU)混摻而成。其中，鏈延長劑（chain extender)較宜者係 丁二醇（1,4-butanediol)。 其中，聚胺基曱酸酯（polyurethane ; PU)佔生物可分解 塑膠重量比例較宜者小於40%，以減少相分離現象，而更佳 者聚胺基曱酿酯（ polyurethane ; PU)重量比例小於20 %， 以使得抗撕裂強度高於低密度聚乙烯（LDPE)。 於本實施例之一較佳範例中，隨著上述之聚二醇分子量 β 增加，生物可分解塑膠的機械強度也隨之增高。 於本實施例之另一較佳範例中，當生物可分解塑膠未發 生相分離時，隨著聚胺基甲後醋（polyurethane ; PU )添加 比例增加，斷裂伸長率（elongation at break)也隨之增加。 於本實施例之又一較佳範例中，上述之生物可分解塑膠 可更包含一澱粉（starch)作為填充物（filler)，其中，搬粉 較宜者佔生物可分解塑膠重量比例小於30%，而更佳者重量 比例小於或等於10 %。此填充物可更包含一相容劑以提高聚 φ 乳酸（P〇lylactic acid ; PLA )與澱粉間的界面作用力。其中， 上述之相容劑可包含下列之一者或其任意組合：棕櫊油、甘 油、硬醋酸、椰子油、絡梨油、杏仁油、葡萄杆油、榛子油、 橄欖油渣、茶油、米糠油、胡桃油、花生油、葵花油、紅花 油、亞麻仁油、菜籽油、大豆油、玉米油、撤挽油。 本發明之一第二實施例揭露一種生物可分解塑膠，一種 生物可分解塑膠，其包含：一聚乳敗（polylactic acid ; PLA ) 與一聚胺基甲酸醋（polyurethane ; PU )’其中，聚胺基甲酸 酯係由下列反應物進行反應而成，其包含：一聚二醇 201024359 (polyol)、一二異氰酸酯（diisocyanate)與一鏈延長劑（chain extender )。 其中’聚二醇較宜者為 0 0ο II 0Η_ -(CH2)2_〇_c—(CH2)4—〇—0—(ch2)2-oh (ΡΕΑ oh--(ch2)5 (PCL)〇, polylactic acid (PLA) The preferred molecular weight range is from 25,000 to 300,000. Among them, polyurethane (PU) is preferred to have a molecular weight range of 25,000 to 300,000. Among them, PBA, PEA and PCL are more suitable for molecular weight range greater than or equal to 500. More preferably, the molecular weight is about 2000. Among them, the above biodegradable plastic is preferably mixed with polylactic acid (PL) and polyurethane (PU). The chain extender is preferably 1,4-butanediol. Among them, polyurethane (PU) accounts for less than 40% of the biodegradable plastic weight ratio, The phase separation phenomenon is reduced, and more preferably, the polyurethane (PU) weight ratio is less than 20%, so that the tear strength is higher than that of the low density polyethylene (LDPE). In the example, as the molecular weight β of the above polyglycol increases, the mechanical strength of the biodegradable plastic In another preferred embodiment of the present embodiment, when the biodegradable plastic does not undergo phase separation, the elongation at break increases with the addition ratio of polyacetal (PU). In a further preferred embodiment of the present embodiment, the biodegradable plastic may further comprise a starch as a filler, wherein the powder is more suitable for the filler. The biodegradable plastic has a weight ratio of less than 30%, and more preferably the weight ratio is less than or equal to 10%. The filler may further comprise a compatibilizer to enhance the interface between the poly(lactic acid) (PL) and the starch. The above compatibilizer may comprise one or any combination of the following: palm oil, glycerin, hard acetic acid, coconut oil, pear oil, almond oil, grape oil, hazelnut oil, olive oil residue , tea oil, rice bran oil, walnut oil, peanut oil, sunflower oil, safflower oil, linseed oil, rapeseed oil, soybean oil, corn oil, withdrawal oil. A second embodiment of the invention discloses a biodegradable plastic ,One A biodegradable plastic comprising: polylactic acid (PL) and polyurethane (PU), wherein the polyurethane is formed by reacting the following reactants, Including: a polyglycol 201024359 (polyol), a diisocyanate (diisocyanate) and a chain extender (chain extender). Where 'polydiol is more suitable for 0 0
OH -(CH2)4-〇—I-(CH2)4-C—〇- -(CH^-OHOH -(CH2)4-〇-I-(CH2)4-C-〇--(CH^-OH
Jn (PBA)，其分子量約為2000， 且上述之聚胺基甲酸酯（polyurethane ; PU )佔生物可分解 塑膠重量比例約為10%，以使得生物可分解塑膠的的抗張強 度（tensile strength)大於 70 MPa，潛伏應力（yield strength)大 於 55 MPa。 於本實施例之一較佳範例中，上述之生物可分解塑膠可 更包含一澱粉（starch)作為填充物（filler)，其中，澱粉較 宜者佔生物可分解塑膠重量比例小於30%，而更佳者重量比 例小於或等於10 %。此填充物可更包含一相容劑以提高聚乳 酸（polylactic acid ; PLA )與澱粉間的界面作用力。其中， 上述之相容劑可包含下列之一者或其任意組合：棕櫚油、甘 油、硬酯酸、椰子油、酪梨油、杏仁油、葡萄籽油、榛子油、 橄欖油渣、茶油、米糠油、胡桃油、花生油、葵花油、紅花 油、亞麻仁油、菜籽油、大豆油、玉米油、橄欖油。 本發明之一第三實施例揭露一種生物可分解塑膠，一種 生物可分解塑勝，其包含：一聚乳酸（polylactic acid ; PLA ) 與一聚胺基曱酸S旨（polyurethane ; PU )，其中，聚胺基甲酸 醋係由下列反應物進行反應而成，其包含：一聚二醇 (polyol )、一二異氰酸醋（diisocyanate )與一鍵延長劑（chain extender )。 其中，聚二醇較宜者為 201024359 Ο οJn (PBA), which has a molecular weight of about 2,000, and the above-mentioned polyurethane (PU) accounts for about 10% by weight of the biodegradable plastic, so that the tensile strength of the biodegradable plastic (tensile) Strength) is greater than 70 MPa and the yield strength is greater than 55 MPa. In a preferred embodiment of the present embodiment, the biodegradable plastic may further comprise a starch as a filler, wherein the starch is preferably less than 30% by weight of the biodegradable plastic, and The better weight ratio is less than or equal to 10%. The filler may further comprise a compatibilizing agent to enhance the interfacial force between the polylactic acid (PLA) and the starch. Wherein, the above compatibilizer may comprise one or any combination of the following: palm oil, glycerin, stearic acid, coconut oil, avocado oil, almond oil, grape seed oil, hazelnut oil, olive oil residue, tea oil Rice bran oil, walnut oil, peanut oil, sunflower oil, safflower oil, linseed oil, rapeseed oil, soybean oil, corn oil, olive oil. A third embodiment of the present invention discloses a biodegradable plastic, which is biodegradable and plastic, comprising: a polylactic acid (PL) and a polyamine (PU), wherein The polyurethane vinegar is reacted by the following reactants, comprising: a poly diol, a diisocyanate and a chain extender. Among them, the polyglycol is more suitable for 201024359 Ο ο
OH- -(CH2)4-〇—H-(CH2)4-C—Ο- -(CH2)4-〇H L 」n (PBA)，其分子量約為2000 ’ 且上述之聚胺基甲酸酯（polyurethane ; PU)佔生物可分解 塑膠重量比例約為30°/。，以使得生物可分解塑膠的的斷裂伸 長率大於180%。 於本實施例之一較佳範例中，上述之生物可分解塑膠可 更包含一漱粉（starch )作為填充物（filler )，其中，殿粉較 宜者佔生物可分解塑膠重量比例小於30%，而更佳者重量比 Ο 例小於或等於ίο%。此填充物可更包含一相容劑以提高聚乳 酸（polylactic acid ; PLA )與殿粉間的界面作用力。其中， 上述之相容劑可包含下列之一者或其任意組合：棕櫊油、甘 油、硬醋酸、椰子油、酷·梨油、杏仁油、葡萄籽油、榛子油、 橄挽油逢、茶油、米糠油、胡桃油、花生油、葵花油、紅花 油、亞麻仁油、菜奸油、大豆油、玉米油、橄欖油。 範例一 PLA/PUpba生物可分解塑膠OH--(CH2)4-〇-H-(CH2)4-C-Ο--(CH2)4-〇HL"n (PBA) having a molecular weight of about 2000 Å and the above-mentioned polyurethane (polyurethane; PU) accounts for about 30°/weight of biodegradable plastic. Therefore, the elongation at break of the biodegradable plastic is greater than 180%. In a preferred embodiment of the present embodiment, the biodegradable plastic may further comprise a starch as a filler, wherein the ratio of the powder to the biodegradable plastic is less than 30%. And the better weight ratio is less than or equal to ίο%. The filler may further comprise a compatibilizer to increase the interfacial force between polylactic acid (PLA) and the powder. Wherein, the above compatibilizer may comprise one or any combination of the following: palm oil, glycerin, hard acetic acid, coconut oil, cool pear oil, almond oil, grape seed oil, hazelnut oil, olive oil, Tea oil, rice bran oil, walnut oil, peanut oil, sunflower oil, safflower oil, linseed oil, rapeseed oil, soybean oil, corn oil, olive oil. Example 1 PLA/PUpba biodegradable plastic
Tensile rength (MPa) Yield trength (MPa) Elongation at break (%) 100 % PLA 57.9 - 7 10 % PUPBA2000 +90 % PLA 81.6 62.7 141.1 20 % PUpBA2000 + 80 % PLA 65.8 50.4 177.6 30 % PUpBA2000 + 70% PLA 51.7 39.0 191.4 40 % PUpBA2000 +60% PLA 36.0 - 111.0 201024359 50 % PUpBA2000 + 50 % PLA 27.2 - 42.7 10 % PUpBAlOOO +90 % PLA 73.7 65.4 145 20 % PUpBAlOOO + 80% PLA 68.3 50.0 132 30 % PUpBAlOOO +70% PLA 52.2 39.7 107.5 參考上表所示之生物可分解塑膠所含之聚胺基甲酸酯 (polyurethane ; PU )比例與其抗張強度（tensile strength )、Tensile rength (MPa) Yield trength (MPa) Elongation at break (%) 100 % PLA 57.9 - 7 10 % PUPBA2000 +90 % PLA 81.6 62.7 141.1 20 % PUpBA2000 + 80 % PLA 65.8 50.4 177.6 30 % PUpBA2000 + 70% PLA 51.7 39.0 191.4 40 % PUpBA2000 +60% PLA 36.0 - 111.0 201024359 50 % PUpBA2000 + 50 % PLA 27.2 - 42.7 10 % PUpBAlOOO +90 % PLA 73.7 65.4 145 20 % PUpBAlOOO + 80% PLA 68.3 50.0 132 30 % PUpBAlOOO +70% PLA 52.2 39.7 107.5 Refer to the ratio of polyurethane in the biodegradable plastic shown in the table above and its tensile strength.
潜伏應力（yield strength)、斷裂伸張率（elongation at break ) 之對照表。其中，聚胺基甲酸醋（polyurethane ; PU)係由 下列反應物進行反應而成，其包含：一聚二醇（polyol)、 二異氰酸醋（diisocyanate)與一鏈延長劑（chain extender) ’ 且聚酵為 量分別為2000或1000。A comparison table of yield strength and elongation at break. Among them, polyurethane urethane (PU) is formed by reacting the following reactants, which comprises: a poly diol, a diisocyanate and a chain extender. ' And the amount of yeast is 2000 or 1000 respectively.
ο ο OH. -(CH2)4—〇——(CH2)4_d—0_ _(CH2)4_〇H (PBA)，且分子ο ο OH. -(CH2)4—〇—(CH2)4_d—0_ _(CH2)4_〇H (PBA), and the molecule
其中，100 % PLA之抗張強度為57.9 MPa，其斷裂伸長 率僅有7 %，顯示PLA為硬且脆之性質。加入PUPBA後有 明顯的增韌效果，當PBA分子量約為2000,且上述之聚胺 基甲酸酯（polyurethane ; PU)佔該生物可分解塑膠重量比 例約為10%，以使得該生物可分解塑膠的抗張強度(tensile strength)大於 70 MPa，潛伏應力（yield strength)大於 55 MPa。 另外，當上述之PBA分子量約為2000，且上述之聚胺 基甲酸酯（polyurethane ; PU)佔該生物可分解塑膠重量比 例約為30%，以使得該生物可分解塑膠的的斷裂伸長率大 201024359 於 180 %。 範例二 PLA/PUpea生物可分解塑膠Among them, 100% PLA has a tensile strength of 57.9 MPa and an elongation at break of only 7%, indicating that PLA is hard and brittle. After adding PUPBA, there is obvious toughening effect. When the molecular weight of PBA is about 2000, and the above-mentioned polyurethane (PU) accounts for about 10% by weight of the biodegradable plastic, the biodegradable is made. The tensile strength of the plastic is greater than 70 MPa and the yield strength is greater than 55 MPa. In addition, when the above PBA molecular weight is about 2,000, and the above-mentioned polyurethane (PU) accounts for about 30% by weight of the biodegradable plastic, the elongation at break of the biodegradable plastic is made. Large 201024359 at 180%. Example 2 PLA/PUpea biodegradable plastic
Tensile rength (MPa) Yield trength (MPa) Elongation at break (%) 100%PLA 57.9 - 7 10 % PUpEA2000 +90%PLA 62.0 62.0 42.0 20 % PUpEA2000 +80%PLA 48.3 44.5 114.8 30 % PUpEA2000 + 70%PLA 32.3 31.3 90.8 10% PUpeAIOOO + 90%PLA 53.7 53.7 60.4 20% PUpeAIOOO + 80%PLA 42.0 41.1 78.2 30% PUpeaiooo + 70%PLA 34.1 - 28.9 參考上表所示之生物可分解塑膠所含之聚胺基甲酸酯Tensile rength (MPa) Yield trength (MPa) Elongation at break (%) 100%PLA 57.9 - 7 10 % PUpEA2000 +90%PLA 62.0 62.0 42.0 20 % PUpEA2000 +80%PLA 48.3 44.5 114.8 30 % PUpEA2000 + 70%PLA 32.3 31.3 90.8 10% PUpeAIOOO + 90%PLA 53.7 53.7 60.4 20% PUpeAIOOO + 80%PLA 42.0 41.1 78.2 30% PUpeaiooo + 70%PLA 34.1 - 28.9 Refer to the polyaminocarboxylic acid contained in the biodegradable plastic shown in the table above. ester
(polyurethane，PU )比例與其抗張強度（tensiie strength )、 潛伏應力（yield strength)、斷裂伸張率（ei〇ngati〇n break ) 之對照表。其中’聚胺基甲酸酶（p〇lyUrethane ; PU )係由 下列反應物進行反應而成，其包含：一聚二酵（p〇ly〇l)、 二異氰酸醋（diisocyanate )與一鏈延長劑（chain extender )， 且聚二醇為 〇 〇II || OH- (CH2)2-〇—C-(CH2)4-C—〇(polyurethane, PU) ratio and its tensile strength (tensiie strength), latent stress (yield strength), elongation at break (ei〇ngati〇n break) comparison table. Wherein 'polyaminol formate (PU) is formed by reacting the following reactants, comprising: a polydextrin (p〇ly〇l), a diisocyanate and a chain Chain extender, and the polyglycol is 〇〇II || OH- (CH2)2-〇-C-(CH2)4-C-〇
—(CH2)2-〇H (PEA)，且分子 量分別為2000或1000。 201024359 結果顯示PL A中加入PUpEASQQo亦具有增韌效果但其 機械性質不如PUPBA系列，其最高抗張強度為62Mpa(9〇% PLA與1 0 % PUpea 2QQ())’且發生在潛伏點處而非斷裂處· 而最高斷裂伸長率為114.8 % ( 80 % PLA與20 % PUpEA2000)。另夕卜’加入 30 % PUpEA 2000 時則同樣有巨觀相 分離現象使機械性質開始下降。 範例三 PLA/PUpcx生物可分解塑膠—(CH2)2-〇H (PEA), and the molecular weight is 2000 or 1000, respectively. 201024359 The results show that the addition of PUpEASQQo to PL A also has a toughening effect but its mechanical properties are not as good as the PUPBA series. Its highest tensile strength is 62Mpa (9〇% PLA and 10% PUpea 2QQ())' and occurs at the latent point. The non-fracture point and the highest elongation at break were 114.8 % (80% PLA and 20% PUpEA2000). In addition, when 30% PUpEA 2000 is added, there is also a phenomenon of macroscopic phase separation, which causes the mechanical properties to begin to decline. Example 3 PLA/PUpcx biodegradable plastic
Tensile strength (MPa) Yield strength (MPa) Elongation at break (%) 100 % PLA 57.9 - 7 10% PUpCL2000 +90% PLA 79.1 67.5 106 20% PU pcuooo + 80% PLA 57.8 52.4 106.2 30% PU PCL2000 + 70% PLA 37.0 13.4 10% PUpcLIOOO + 90% PLA 56.2 56.2 104 20% PU pcliooo + 80% PLA 51.3 43.1 86.7 30% PU pcliooo + 70% PLA 34.3 - 42.5 參考上表所示之生物可分解塑膠所含之聚胺基甲酸酯 (polyurethane ; PU )比例與其抗張強度（tensile strength )、 潛伏應力（yield strength)、斷裂伸張率（elongation at break ) 之對照表。其中，聚胺基甲酸酯（polyurethane ; PU )係由 下列反應物進行反應而成，其包含：一聚二醇（p〇iy〇i)、 二異氣酸輯（diisocyanate)與一鍵延長劑（chain extender) ’ 201024359 且Tensile strength (MPa) Yield strength (MPa) Elongation at break (%) 100 % PLA 57.9 - 7 10% PUpCL2000 +90% PLA 79.1 67.5 106 20% PU pcuooo + 80% PLA 57.8 52.4 106.2 30% PU PCL2000 + 70% PLA 37.0 13.4 10% PUpcLIOOO + 90% PLA 56.2 56.2 104 20% PU pcliooo + 80% PLA 51.3 43.1 86.7 30% PU pcliooo + 70% PLA 34.3 - 42.5 Refer to the polyamines contained in the biodegradable plastics shown in the table above. A comparison table of the ratio of the polyurethane (PU) to its tensile strength, yield strength, and elongation at break. Among them, polyurethane (PU) is formed by reacting the following reactants, including: polyglycol (p〇iy〇i), diisocyanate and one-bond extension Chain extender ' 201024359 and
0H--(CH2)5-0-C (PCL)，且分子量分別為2000或1000。0H--(CH2)5-0-C (PCL), and the molecular weight is 2000 or 1000, respectively.
90 % PLA/ 10 % PUpcl2〇oo 與 PLA/ PUpba2〇oo 系列結果類 似，在拉伸過程中會出現明顯之潛伏點與頸縮現象。並在 拉伸末端會有很明顯的應變硬化與應力白化的現象，說明 了 PLA/i>UPCL2000在拉伸過程中出現再結晶，因此機械性質 大幅提升至79.1 MPa，斷裂伸長率亦可達106 %。另外， PLA/PUpcl1〇〇〇系列與PLA/PUpcl2000相比，其抗張強度有明 顯下降。 範例四90 % PLA/ 10 % PUpcl2〇oo Similar to the results of the PLA/ PUpba2〇oo series, there are significant latent and necking phenomena during stretching. At the end of the stretching, there will be obvious strain hardening and stress whitening, which indicates that PLA/i>UPCL2000 recrystallizes during the stretching process, so the mechanical properties are greatly improved to 79.1 MPa, and the elongation at break can reach 106. %. In addition, the PLA/PUpcl1〇〇〇 series has a significant decrease in tensile strength compared to PLA/PUpcl2000. Example 4
Tensile Yield Elongation Tear strength strength at break strength (MPa) (MPa) (%) (kN/m) 100%PLA 57.9 56.2 7 46.1 90%PLA + 10 % PUpBA2000 81.6 62.7 141.1 52.0 81%PLA+9%PUPBa2〇oo + 10 % Starch 66.5 54.2 104.1 45.1 72 % PLA + 8 % PU pba2〇oo + 20 % Starch 46.7 43.6 47 15.0 63%PLA+7%PUPBa2〇oo + 30 % Starch 34.1 34.1 23 7.5 參考上表所示之生物可分解塑膠所含之聚胺基曱酸酯 (polyurethane ; PU )比例與其抗張強度（tensile strength )、 潛伏應力（yield strength)、斷裂伸張率（elongation at 12 201024359 break )、撕裂強度(tear strength)之對照表。其中’聚胺基曱 酸酿（polyurethane ; PU )係由下列反應物進行反應而成’ 其包含：一聚二醇（p〇1y〇i)、二異氰酸酯（diisocyanate) 與一鏈延長劑 （chain extender )，且聚二醇為 Ο 〇 -〇-cl-(CH2)4-C—0Tensile Yield Elongation Tear strength strength at break strength (MPa) (MPa) (%) (kN/m) 100%PLA 57.9 56.2 7 46.1 90%PLA + 10 % PUpBA2000 81.6 62.7 141.1 52.0 81%PLA+9%PUPBa2〇oo + 10 % Starch 66.5 54.2 104.1 45.1 72 % PLA + 8 % PU pba2〇oo + 20 % Starch 46.7 43.6 47 15.0 63%PLA+7%PUPBa2〇oo + 30 % Starch 34.1 34.1 23 7.5 Refer to the creature shown in the table above The proportion of polyurethane (PU) contained in decomposable plastics and its tensile strength, yield strength, elongation at break (elongation at 12 201024359 break ), tear strength (tear) Comparison table of strength). Among them, 'polyurethane (PU) is reacted by the following reactants', which comprises: a polyglycol (p〇1y〇i), a diisocyanate (diisocyanate) and a chain extender (chain) Extender ), and the polyglycol is Ο 〇-〇-cl-(CH2)4-C-0
--(CH2)4-QH (CH2)4--(CH2)4-QH (CH2)4
0H L > (PBA)，且分子量為2000 » 本發明固定PLA/PUpba比例為9/1及8/1，並以這兩組 Ο 再與10 %至30 %不等之澱粉進行混摻。結果顯示，加入 10 %澱粉後使機械性質有些為下降。加入超過20 %澱粉 後，斷裂伸長率皆降至未混摻澱粉前之三分之一以下，加 入30 %澱粉時其斷裂伸長率更降低至20 %澱粉時之一 半’顯示澱粉僅為填充物角色，且澱粉與PLA/PUpba作用 力小。 範例五 PLA/PU 搞Μ 提性質分析 PU type PU content 10% 20% 30% 40% 50% PUpBA2000 51.98 48.93 42.82 27.12 14.56 PUpcuOOO 52.49 49.11 14.30 - PUpEA2000 52.81 49.66 28.01 - PUpBAlOOO 48.50 39.62 20.46 - - PUpcliooo 52.15 47.07 29.99 - 13 201024359 PUpEAlOOO 54.42 31.62 20.200H L > (PBA), and the molecular weight is 2000 » The fixed PLA/Pupba ratio of the present invention is 9/1 and 8/1, and the two groups of mash are mixed with 10% to 30% of starch. The results showed that the mechanical properties were somewhat reduced after the addition of 10% starch. After adding more than 20% starch, the elongation at break is reduced to less than one third of that before unmixed starch. When 30% starch is added, the elongation at break is reduced to 20%. Role, and the starch and PLA / PUpba have a small force. Example 5 PLA/PU messing up Property analysis PU type PU content 10% 20% 30% 40% 50% PUpBA2000 51.98 48.93 42.82 27.12 14.56 PUpcuOOO 52.49 49.11 14.30 - PUpEA2000 52.81 49.66 28.01 - PUpBAlOOO 48.50 39.62 20.46 - - PUpcliooo 52.15 47.07 29.99 - 13 201024359 PUpEAlOOO 54.42 31.62 20.20
kN/m 純PLA之抗撕裂強度為46.09 kN/m，而加入丨〇 Q/〇PU 後，抗撕裂強度皆有些許提升約為5〇 kN/m，差異並不明 e 顯。隨著PU添加量增加巨觀相分離現象明顯，分子間作用 力下降’促使抗撕裂強度降低。因此，抗撕裂強度可作為 PLA與不同PU間混換相容性之參考指標之一。其中，pu 佔總重量30 %之PLA/PU生物可分解塑膠，其抗撕裂強度 明顯下降。 市售塑膠袋原料（LDPE)的抗撕裂強度為28.13 kN/m， 而PU佔總重量低於20 %之PLA/PU生物可分解塑膠，其 抗撕裂強度優於市售塑膠袋原料° 顯然地’依照上面實施例中的描述’本發明可能有許 多的修正與差異。因此需要在其附加的權利要求項之範圍 内加以理解，除了上述詳細的描述外，本發明還可以廣泛 地在其他的實施例中施行°上述僅為本發明之較佳實施例 而已，並非用以限定本發明之申請專利範圍；凡其它未脫 離本發明所揭示之精神下所完成的等效改變或修飾，均應 包含在下述申請專利範園内° 【圖式簡單說明】 【主要元件符號說明】The tear strength of kN/m pure PLA is 46.09 kN/m, and after adding 丨〇Q/〇PU, the tear strength is slightly improved by about 5〇 kN/m, and the difference is not obvious. As the amount of PU added increases, the phenomenon of macroscopic phase separation is significant, and the decrease in intermolecular force promotes a decrease in tear strength. Therefore, the tear strength can be used as one of the reference indicators for compatibility between PLA and different PUs. Among them, pu accounts for 30% of the total weight of PLA/PU biodegradable plastic, and its tear strength is significantly reduced. Commercially available plastic bag material (LDPE) has a tear strength of 28.13 kN/m, while PU has a total weight of less than 20% PLA/PU biodegradable plastic, and its tear strength is superior to that of commercially available plastic bag materials. Obviously, the invention may have many modifications and differences in accordance with the description in the above embodiments. Therefore, it is to be understood that the scope of the appended claims are intended to be The scope of the present invention is defined by the scope of the invention, and other equivalent changes or modifications which are not included in the spirit of the present invention should be included in the following patent application. [Simplified description of the drawings] 】
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097151544A TWI547517B (en) | 2008-12-31 | 2008-12-31 | Bio-plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097151544A TWI547517B (en) | 2008-12-31 | 2008-12-31 | Bio-plastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201024359A true TW201024359A (en) | 2010-07-01 |
| TWI547517B TWI547517B (en) | 2016-09-01 |
Family
ID=44852052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097151544A TWI547517B (en) | 2008-12-31 | 2008-12-31 | Bio-plastic |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI547517B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI582161B (en) * | 2015-08-13 | 2017-05-11 | 蔡鴻易 | Producing method of a biodegradable polylactic acid based composite |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060147582A1 (en) * | 2004-06-14 | 2006-07-06 | Riebel Michael J | Biopolymer and methods of making it |
| US20080269454A1 (en) * | 2005-11-17 | 2008-10-30 | Industrial Technology Research Institute | Linear thermoplastic polyurethanes and method of fabricating the same |
-
2008
- 2008-12-31 TW TW097151544A patent/TWI547517B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI582161B (en) * | 2015-08-13 | 2017-05-11 | 蔡鴻易 | Producing method of a biodegradable polylactic acid based composite |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI547517B (en) | 2016-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101626997B1 (en) | Aliphatic-aromatic biodegradable polyester | |
| Liu et al. | Toward fully bio-based and supertough PLA blends via in situ formation of cross-linked biopolyamide continuity network | |
| CN102597050B (en) | Biodegradable aliphatic-aromatic polyester | |
| Wang et al. | Design, preparation and properties of bio-based elastomer composites aiming at engineering applications | |
| EP3212687B1 (en) | High recycle content polyester polyols from hydroxy-functional ketal acids, esters or amides | |
| Lu et al. | Innovative plasticized starch films modified with waterborne polyurethane from renewable resources | |
| Valerio et al. | Synthesis of glycerol-based biopolyesters as toughness enhancers for polylactic acid bioplastic through reactive extrusion | |
| CN102597105B (en) | Mixtures of biodegradable polyesters with at least one polymer of natural origin | |
| CN115066284B (en) | Polymer compositions for films with improved mechanical properties and degradability | |
| US10040899B2 (en) | Cycloaliphatic polyester polyols from thermoplastic polyesters | |
| CN110678502B (en) | Polymer compositions for highly disintegrable films | |
| CN110698844A (en) | Novel degradable packaging material and preparation method thereof | |
| CN107207713A (en) | The high recovery content polyols obtained by thermoplastic polyester and lignin or tannin | |
| CN108192105A (en) | A kind of biology base Biodegradable multiblock polymer and its preparation method and application | |
| KR20180063907A (en) | Aliphatic-aromatic copolyesters and their mixtures | |
| Roy Goswami et al. | Starch maleate/epoxidized soybean oil/polylactic acid films with improved ductility and biodegradation potential for packaging fatty foods | |
| Borrero-López et al. | Lignin effect in castor oil-based elastomers: Reaching new limits in rheological and cushioning behaviors | |
| AU2011231669A1 (en) | Process for producing cling films | |
| Shou et al. | Biobased and recyclable polyurethane for room-temperature damping and three-dimensional printing | |
| Shirke et al. | Novel applications of castor oil based polyurethanes: a short review | |
| WO2025137759A1 (en) | Biodegradable polymer composites, methods of manufacture and use therefor | |
| TW201024359A (en) | Bio-plastic | |
| Chowdhury et al. | A review on biodegradable polymeric materials derived from vegetable oils for diverse applications | |
| CN117500666A (en) | Methods and related products for branched polyesters for foaming | |
| JP6255345B2 (en) | Method for obtaining polyol from palm oil, polyol obtained by the method, product using the polyol, and method for producing the same |