TWI648385B - 表面物性改良劑組合物、含有該組合物的熱塑性樹脂組合物及其樹脂成形品 - Google Patents
表面物性改良劑組合物、含有該組合物的熱塑性樹脂組合物及其樹脂成形品 Download PDFInfo
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- TWI648385B TWI648385B TW104133208A TW104133208A TWI648385B TW I648385 B TWI648385 B TW I648385B TW 104133208 A TW104133208 A TW 104133208A TW 104133208 A TW104133208 A TW 104133208A TW I648385 B TWI648385 B TW I648385B
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- 229920005992 thermoplastic resin Polymers 0.000 title claims description 28
- 239000011342 resin composition Substances 0.000 title claims description 17
- 229920005989 resin Polymers 0.000 title claims description 12
- 239000011347 resin Substances 0.000 title claims description 12
- 230000000704 physical effect Effects 0.000 title abstract description 33
- 239000001993 wax Substances 0.000 claims abstract description 49
- -1 polyethylene Polymers 0.000 claims abstract description 31
- 229920006163 vinyl copolymer Polymers 0.000 claims abstract description 28
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 20
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 18
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 8
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- 239000004200 microcrystalline wax Substances 0.000 claims abstract description 7
- 235000019808 microcrystalline wax Nutrition 0.000 claims abstract description 7
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- 125000005250 alkyl acrylate group Chemical group 0.000 claims abstract 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 51
- 239000004417 polycarbonate Substances 0.000 claims description 47
- 229920000515 polycarbonate Polymers 0.000 claims description 47
- 239000000178 monomer Substances 0.000 claims description 34
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 32
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 32
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- QPIRYFWCAHUZTB-UHFFFAOYSA-N 3,5,5-trimethyl-1-(3,5,5-trimethylhexylperoxy)hexane Chemical compound CC(C)(C)CC(C)CCOOCCC(C)CC(C)(C)C QPIRYFWCAHUZTB-UHFFFAOYSA-N 0.000 description 2
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
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- FZYCEURIEDTWNS-UHFFFAOYSA-N prop-1-en-2-ylbenzene Chemical compound CC(=C)C1=CC=CC=C1.CC(=C)C1=CC=CC=C1 FZYCEURIEDTWNS-UHFFFAOYSA-N 0.000 description 2
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- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
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- FYRCDEARNUVZRG-UHFFFAOYSA-N 1,1,5-trimethyl-3,3-bis(2-methylpentan-2-ylperoxy)cyclohexane Chemical compound CCCC(C)(C)OOC1(OOC(C)(C)CCC)CC(C)CC(C)(C)C1 FYRCDEARNUVZRG-UHFFFAOYSA-N 0.000 description 1
- VBQCFYPTKHCPGI-UHFFFAOYSA-N 1,1-bis(2-methylpentan-2-ylperoxy)cyclohexane Chemical compound CCCC(C)(C)OOC1(OOC(C)(C)CCC)CCCCC1 VBQCFYPTKHCPGI-UHFFFAOYSA-N 0.000 description 1
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
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- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- RTANHMOFHGSZQO-UHFFFAOYSA-N 4-methoxy-2,4-dimethylpentanenitrile Chemical compound COC(C)(C)CC(C)C#N RTANHMOFHGSZQO-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
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- HCPOVDYWABHXGP-UHFFFAOYSA-N C(CCCCCC(C)(C)C)(=O)O.C1(=CC=CC=C1)C(C)C Chemical compound C(CCCCCC(C)(C)C)(=O)O.C1(=CC=CC=C1)C(C)C HCPOVDYWABHXGP-UHFFFAOYSA-N 0.000 description 1
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- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
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- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
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- 238000011179 visual inspection Methods 0.000 description 1
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- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
本發明提供一種表面物性改良劑組合物,其含有(A)蠟、(B)乙烯基(共)聚合物及(C)碳原子數5~14的脂肪族烴。(A)為(a1)石蠟、(a2)微晶蠟、(a3)費托蠟及(a4)聚乙烯蠟中的一種以上,(B)為由(b1)(甲基)丙烯腈、(b2)碳原子數1~4的(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)預定的(甲基)丙烯酸烷基酯類中的一種以上得到,相對於(A)+(B)=100質量份,(A)為50~98質量份;相對於(A)的總量,(C)為0.001~1質量%。
Description
本發明涉及表面物性改良劑組合物、含有該組合物的熱塑性樹脂組合物及其樹脂成形品。
聚碳酸酯(PC)/丙烯腈-丁二烯-苯乙烯共聚物(ABS)是衝擊性、加工性、阻燃性優異的熱塑性樹脂混合物,因此廣泛適用於汽車元件或電腦、辦公設備、電氣化產品的外殼等大量散熱的大型注塑品,近年來其使用領域有所增加。另一方面,PC/ABS存在耐擦傷性低、與其他元件摩擦易發出嘎吱聲的問題。
特開平10-101920號公報中公開了在PC/ABS中添加低分子量聚烯烴、矽油或有機矽樹脂微粒中的任一種,從而改善PC/ABS的滑動性的技術。
特開2013-53306號公報中公開了對聚丙烯(PP)添加烴類蠟與含有聚矽氧烷基的乙烯基共聚物的組合物,從而改善PP的耐擦傷性的技術。
然而,在特開平10-101920號公報記載的方法中,PC及ABS與潤滑性成分之間的相容性差,存在外觀下降或表面發黏的問題。另外,有PC/ABS的動摩擦係數下降的記載,但不存在關於耐摩擦性提高及嘎吱聲降低的記載。
特開2013-53306號公報有關於所公開的組合物提高PP的耐摩擦性的記載,但不存在相對於PC/ABS該組合物所體現效果的記載,也不存在關於嘎吱聲降低的記載。
〔發明所欲解決的課題〕
因此,為解決上述技術問題,本發明的目的在於提供一種能夠成形為成形品外觀良好、且耐摩擦性提高及嘎吱聲降低效果優異的樹脂成形品的表面物性改良劑組合物、含有該組合物的熱塑性樹脂組合物及其樹脂成形品。 〔解決課題的技術手段〕
根據本發明的一個特徵,表面物性改良劑組合物含有(A)蠟、(B)乙烯基(共)聚合物及(C)碳原子數5~14的脂肪族烴。(A)成分為選自(a1)石蠟(paraffin wax)、(a2)微晶蠟、(a3)費托蠟及(a4)聚乙烯蠟中的至少一種。(B)成分為由選自(b1)(甲基)丙烯腈、(b2)碳原子數1~4的(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)下述式(1)所示(甲基)丙烯酸烷基酯類中的至少一種乙烯基單體進行自由基聚合而成。相對於(A)成分與(B)成分的總量100質量份,(A)成分為50~98質量份;相對於該(A)成分的總量,(C)成分為0.001~1質量%。(R1
:H或CH3
,R2
:碳原子數1~4的直鏈或支鏈烴基)
根據本發明的另一特徵,表面物性改良劑組合物含有(A)蠟、(B)乙烯基共聚物及(C)碳原子數5~14的脂肪族烴。(A)成分為選自(a1)石蠟、(a2)微晶蠟、(a3)費托蠟及(a4)聚乙烯蠟中的至少一種。(B)成分為由選自(b1)(甲基)丙烯腈、(b2)碳原子數1~4的(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)下述式(1)所示(甲基)丙烯酸烷基酯類中的至少一種乙烯基單體與(b6)一分子內具有聚矽氧烷基、及至少在一個末端具有乙烯基的乙烯基單體進行自由基聚合而得到的乙烯基共聚物。相對於(A)成分與(B)成分的總量100質量份,(A)成分為50~98質量份;相對於該(A)成分的總量,(C)成分為0.001~1質量%,(B)成分中的單體(b6)的組成比例為1~30質量%。(R1
:H或CH3
,R2
:碳原子數1~4的直鏈或支鏈烴基)
根據本發明的另一特徵,熱塑性樹脂組合物相對於由5~95質量份聚碳酸酯(PC)、5~95質量份丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)構成的100質量份熱塑性樹脂,含有0.1~20質量份該表面物性改良劑組合物。
根據本發明的另一特徵,樹脂成形品由熱塑性樹脂組合物成形為預定形狀而成。
根據本發明的表面物性改良劑組合物,僅藉由添加於PC/ABS樹脂,即可容易地賦予PC/ABS以耐擦傷性及嘎吱聲降低性能。另外,一般地,若在PC/ABS樹脂中添加這種潤滑劑,則存在所得到的PC/ABS樹脂成形品的成形外觀下降、或表面發黏的趨勢,但根據本發明的表面物性改良劑組合物能夠在不使PC/ABS樹脂成形品的成形外觀下降的情況下,賦予良好的耐摩擦性能及嘎吱聲降低性能。尤其,(C)成分具有進一步提高(A)蠟的潤滑性的功能,因此可提高PC/ABS樹脂成形品表面的平滑性。而且,成形品外觀良好,且可得到耐摩擦性提高及嘎吱聲降低效果優異的樹脂成形品。另外,單體(b6)具有表面配向性及潤滑性,因此如果同時含有單體(b6),可使表面物性改良劑組合物微細分散於PC/ABS樹脂成形品表面,且可進一步提高PC/ABS樹脂成形品表面的平滑性。
以下,對本發明進行說明。另外,在本公開文本中,表示數值範圍的「○○~××」只要沒有明確指出,即表示「○○以上××以下」。此外,本發明中的 「(A)蠟」是指也包括含有若干(C)成分作為副成分的「蠟混合物」的概念。因此,(C)成分的含量中也包括(A)成分中原本含有的量。此外,「(共)聚合物」是指包括由單一乙烯基單體構成的聚合物、和由兩種以上乙烯基單體構成的共聚物的概念。此外,「(甲基)丙烯酸」是指包括甲基丙烯酸和丙烯酸兩者的概念。同樣地,「(甲基)丙烯腈」是指包括甲基丙烯腈和丙烯腈兩者的概念。
《表面物性改良劑組合物》 本發明的表面物性改良劑組合物含有(A)蠟、(B)乙烯基(共)聚合物及(C)碳原子數5~14的脂肪族烴而成。
<(A)蠟> (A)蠟是能夠表現低摩擦性等性質的化合物,主要具有提高PC/ABS樹脂成形品的表面平滑性的功能。作為該蠟,可以使用在25℃、1氣壓下為固體的碳原子數20~80的烴成分。具體地,可以使用選自由石油提煉的(a1)石蠟、(a2)微晶蠟、由天然氣合成的(a3)費托蠟及(a4)聚乙烯蠟中的至少一種、或兩種以上。
另外,(a1)石蠟、(a2)微晶蠟及(a3)費托蠟是蠟混合物,在含有這些蠟作為主成分的同時,還含有若干(0.01~0.9質量%左右)後述的(C)成分作為副成分。另一方面,(a4)聚乙烯蠟為純蠟,僅由該聚乙烯蠟構成。
<(B)乙烯基(共)聚合物> (B)乙烯基(共)聚合物使(A)蠟與PC/ABS相容化,具有使(A)蠟微細分散於PC/ABS中的功能。該(B)乙烯基(共)聚合物是使選自(b1)(甲基)丙烯腈、(b2)(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)下述式(1)所示(甲基)丙烯酸烷基酯類中的至少一種或兩種以上乙烯基單體進行自由基聚合而成的(共)聚合物。其中,從耐擦傷性的角度考慮,優選(b1)(甲基)丙烯腈與(b4)苯乙烯的共聚物。(R1
:H或CH3
,R2
:碳原子數1~4的直鏈或支鏈烴基)
此外,作為(B)乙烯基(共)聚合物,優選使用選自上述乙烯基單體(b1)~(b5)中的至少一種與(b6)一分子內具有聚矽氧烷基、且至少在一個末端具有乙烯基的單體進行自由基聚合而成的共聚物。這樣的乙烯基單體(b6)由於具有聚矽氧烷基,可顯著提高(B)乙烯基(共)聚合物的表面配向性。因此,由於(B)乙烯基(共)聚合物,相容化的(A)蠟也在表面發生配向,從而可提高PC/ABS樹脂成形品表面的潤滑性。並且,聚矽氧烷本身也具有潤滑性,因此乙烯基單體(b6)共聚而成的(B)乙烯基(共)聚合物被賦予潤滑性,從而可顯著改善PC/ABS樹脂成形品表面的平滑性。
作為乙烯基單體(b6),例如可例舉信越化學工業(株)的產品名:X-22-164、X-22-164AS、X-22-164A、X-22-164B、X-22-164C、X-22-164E、X-22-2445、X-22-1602、X-22-174ASX、X-22-174BX、X-22-2426、X-22-2475、KF-2012、JNC(株)的產品名:Silaplane FM-0711、Silaplane FM-0721、Silaplane FM-0725等。其中優選僅對一個末端進行(甲基)丙烯基改性的X-22-174ASX、X-22-174BX、X-22-2426、X-22-2475、KF-2012、Silaplane FM-0711、Silaplane FM-0721、Silaplane FM-0725。這些乙烯基單體(b6)可以僅使用一種,也可以同時使用兩種以上。
<自由基聚合引發劑> 上述乙烯基單體(b1)~(b6)因自由基聚合引發劑進行自由基聚合。作為該自由基聚合引發劑,可使用偶氮類聚合引發劑、有機過氧化物、過硫酸鹽、過氧化氫溶液、氧化還原聚合引發劑(組合氧化劑及還原劑的聚合引發劑)等。
作為偶氮類聚合引發劑,可以例舉如偶氮二異丁腈、偶氮二異戊腈、偶氮雙二甲基戊腈、偶氮雙(4-甲氧基-2,4-二甲基戊腈)、1-苯基乙基偶氮二苯基甲烷等。
作為有機過氧化物,可例舉如1,1-二(叔己基過氧)-3,3,5-三甲基環己烷、1,1-二(叔己基過氧)環己烷等過氧縮酮類,過氧化氫對孟烷、過氧化氫二異丙苯、1,1,3,3-四甲基丁基過氧化氫、過氧化氫異丙苯、叔丁基過氧化氫等過氧化氫類,二(3,5,5-三甲基已醯基)過氧化物、過氧化苯甲醯等二醯基過氧化物,過氧化新癸酸異丙苯酯、過氧化新癸酸叔丁酯等過氧化酯類等。
作為氧化還原聚合引發劑中所使用的氧化劑,可以使用過氧化氫類或過硫酸鹽。作為過氧化氫類,可例舉如過氧化氫異丙苯、叔丁基過氧化氫、過氧化氫二異丙苯、過氧化氫對孟烷、1,1,3,3-四甲基丁基過氧化氫等。作為過硫酸鹽,可例舉如過硫酸鉀、過硫酸銨等。作為還原劑,可例舉如葡萄糖、右旋糖、甲醛次硫酸鈉(雕白粉)、硫代硫酸鈉、硫酸亞鐵、硫酸銅以及鐵(Ⅲ)氰化鉀等。
在上述例示的自由基聚合引發劑中,從容易處理及容易控制聚合反應方面考慮,優選為二(3,5,5-三甲基已醯基)過氧化物或過硫酸鉀。
<(B)乙烯基(共)聚合物的製備方法> (B)乙烯基(共)聚合物可由使用了自由基聚合引發劑的公知的懸浮聚合法或乳化聚合法合成。此時,與選自乙烯基單體(b1)~(b5)中的至少一種同時使用(b6)單體時,以(B)乙烯基(共)聚合物的總量(100質量%)為基準,以單體(b6)的含量為1~30質量%的方式添加。單體(b6)的添加比例(含量)若為31質量%以上,所得到的PC/ABS樹脂成形品的表面物性下降。
另外,相對於各單體的總量100質量份,自由基聚合引發劑的添加量(含量)優選為0.001~10質量份,更加優選為0.01~5質量份。自由基聚合引發劑的含量不足0.001質量份的情況下,不僅需要進行長時間的反應以使聚合完結,而且反應不會完結,因此並不優選。另一方面,超過10質量份的情況下,放熱增加,聚合反應的控制有變困難的趨勢。
由乳化聚合法進行合成的情況下,在混合各單體的同時還混合有表面活性劑。作為該乳化聚合所使用的表面活性劑,可使用公知的非離子型、陰離子型或陽離子型表面活性劑。以鹽析獲取聚合物的情況下,優選陰離子型表面活性劑。作為陰離子型表面活性劑,可例舉如脂肪酸鹽、烷基苯磺酸鈉、烷基萘磺酸鹽、磺基琥珀酸二烷基酯鹽、烷基磷酸酯鹽、萘磺酸甲醛縮合物、聚氧乙烯烷基硫酸酯鹽等。相對於單體(b1)~(b6)的總量100質量份,這些表面活性劑以0.1~10質量份左右的比例進行添加,優選以0.1~5質量份的比例進行添加。
乳化聚合時,可以根據需要而添加公知的pH調節劑、螯合劑、聚合調節劑、聚合穩定劑等。例如,可例舉氫氧化鈉、氫氧化鉀、氫氧化銨、碳酸氫鈉、碳酸鈉、磷酸氫二鈉等pH調節劑,乙二胺四乙酸鈉、焦磷酸鈉等螯合劑,由無機電解質、有機電解質、高分子電解質等構成的粘度調節劑或聚合穩定劑等。進一步,為了控制聚合,還可添加公知的交聯劑、鏈轉移劑、阻聚劑等。
聚合結束後,乳化聚合所得到的乳化液,使用例如鹽酸、硫酸、硝酸等酸類,氯化鈉、氯化鉀、硫酸鈉、氯化鈣、硫酸鎂、硫酸銅、硝酸鈣等電解質類進行鹽析後,藉由過濾、乾燥得到(共)聚合物。
此外,藉由懸浮聚合法進行合成的情況下,在混合各單體的同時混合分散劑。作為分散劑,可例舉如作為無機類化合物的三磷酸鈣、磷酸鎂、磷酸鋁、磷酸鋅、碳酸鈣、碳酸鎂、氫氧化鈣、氫氧化鎂、氫氧化鋁、偏矽酸鈣、硫酸鈣、硫酸鋇、膨潤土、二氧化矽、礬土、磁性體、鐵氧體等。此外,作為有機類化合物,可例舉聚乙烯醇、明膠、甲基纖維素、甲基羥丙基纖維素、乙基纖維素、羧甲基纖維素的鈉鹽、澱粉等。相對於各單體的總量100質量份,分散劑的添加量可以為0.01~10質量份左右,優選為0.01~5質量份左右。並且,懸浮聚合結束後,藉由過濾及乾燥得到(共)聚合物。
由各單體的自由基聚合所合成的(B)乙烯基(共)聚合物的數均分子量(Mn)通常為1,000~6,000,000,優選為10,000~4,000,000。該數均分子量若不足1,000,則乙烯基(共)聚合物的耐熱性有下降趨勢,數均分子量若超過6,000,000,則使乙烯基(共)聚合物熔融時的流動性變差,有成形性下降的趨勢。
因此,優選在表面物性改良劑組合物中根據需要添加分子量調節劑。作為該分子量調節劑,可例舉如正十二烷硫醇、苯基硫醇等烷基硫醇類,α-甲基苯乙烯二聚物、四氯化碳等鹵化烷類,異丙醇等醇類等。
<(C)碳原子數5~14的脂肪族烴> (C)碳原子數5~14的脂肪族烴是在25℃、1個大氣壓下液體的烴成分,具有進一步提高(A)蠟的潤滑性的功能。作為(C)碳原子數5~14的脂肪族烴的具體例,具有戊烷、異戊烷、己烷、異己烷、庚烷、辛烷、壬烷、癸烷、十一碳烷、十二碳烷、十三碳烷、十四碳烷等。這些(C)碳原子數5~14的脂肪族烴可以僅使用一種,也可以作為兩種以上的混合物使用。
相對於(A)蠟(混合物)的總量(100質量%),(C)成分的含量為0.001~1質量%。若在該範圍之外,則得到的PC/ABS樹脂成形品的表面物性下降。另外,在該(C)成分的含量中,也包括(A)蠟中原本含有的量。
本發明的表面物性改良劑組合物可以藉由在(A)蠟的融點以上的溫度下,混合(A)蠟和(B)乙烯基(共)聚合物而獲得。此時,也可以製備(B)乙烯基(共)聚合物後與(A)蠟混合,也可以在同一容器內投入(A)蠟和各乙烯基單體(b1)~(b6),在(A)蠟的存在下製備(B)乙烯基(共)聚合物。另外,本發明的表面物性改良劑組合物也可以(A)蠟與(B)乙烯基(共)聚合物之間藉由共價鍵鍵合,取得接枝共聚物/或嵌段共聚物的形態。該接枝共聚物/或嵌段共聚物可以藉由在同一容器內投入(A)蠟和各乙烯基單體(b1)~(b6),在(A)蠟的存在下製備(B)乙烯基(共)聚合物而獲得。
(A)蠟與(B)乙烯基(共)聚合物的添加比例(含量)相對於(A)+(B)=100質量份,將(A)蠟設為50~98質量份(換言之,(B)乙烯基(共)聚合物為50~2質量份)。若(A)蠟少於50質量份,潤滑劑量減少,得到的PC/ABS樹脂成形品的表面平滑性下降。
《熱塑性樹脂組合物》 本發明的熱塑性樹脂組合物可以藉由對聚碳酸酯(PC)與丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)的混合樹脂添加上述表面物性改良劑組合物作為添加劑(潤滑劑),並將它們熔融混煉而獲得。
<聚碳酸酯(PC)> 聚碳酸酯(PC)只要是藉由公知的光氣法或熔融法等製得的芳香族聚碳酸酯即可。具體的製備方法如特開昭63-215763號公報或特開平2-124934號公報中所記載的。作為原料使用的具有代表性的雙酚可例舉2,2-雙(4-羥基苯基)丙烷(所謂的雙酚A)。此外,作為用於導入聚碳酸酯的前驅物質,可以例舉光氣、二苯基碳酸酯等。對於所製得的聚碳酸酯樹脂(PC),末端OH基封端、末端OH基未封端的聚碳酸酯均可以使用。
<丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)> 丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)是將以丙烯腈、丁二烯、苯乙烯三種成分為主體的共聚物作為主成分的樹脂,可以使用在丁二烯存在下使丁烯腈與苯乙烯進行自由基聚合所得到的等以公知的方法製得的產品。
<添加比例> 本發明的熱塑性樹脂組合物相對於由5~95質量份聚碳酸酯(PC)、5~95質量份丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)構成的100質量份熱塑性樹脂,含有0.1質量份~20質量份表面物性改良劑組合物,優選含有1~20質量份。相對於100質量份熱塑性樹脂,表面物性改良劑組合物少於0.1質量份的情況下,無法獲得充分的耐擦傷性及嘎吱聲降低效果。另一方面,相對於100質量份熱塑性樹脂,表面物性改良劑組合物多於20質量份的情況下,所獲得的熱塑性樹脂成形品的成形外觀惡化。另外,PC與ABS的比例可以根據最終成形品的用途採用PC:ABS=95:5~5:95的任意比例。
本發明的熱塑性樹脂組合物中,可以在不損害本發明效果的範圍內添加抗氧化劑、紫外線吸收劑、阻燃劑、離型劑、界面活性劑、潤滑劑、增塑劑、著色劑、抗菌劑、分散劑、填充劑、玻璃纖維等樹脂用添加劑。這些可以僅使用一種,也可以同時使用兩種以上。
<熱塑性樹脂的製備方法> 製備本發明的熱塑性樹脂組合物時,可以將PC、ABS和表面物性改良劑組合物同時熔融混煉形成熱塑性樹脂組合物,也可以預先將PC與ABS熔融混煉得到PC/ABS的熱塑性樹脂後,與表面物性改良劑組合物熔融混煉形成熱塑性樹脂組合物。預先熔融混煉有PC與ABS的PC/ABS的熱塑性樹脂在市面有售,可例舉Bayer製的BayblendT65XF 901510、BayblendT85XF 901510等。作為熔融混煉的方法,可以採用單軸擠出機、雙軸擠出機、班伯里混煉機、葉片混煉機、卷軋機等公知的熔融混煉方法。
《樹脂成形品》 本發明的樹脂成形品藉由將上述熱塑性樹脂組合物成形為預定形狀而獲得,熱塑性樹脂組合物中所含的表面物性改良劑組合物的效果得到體現。作為樹脂成形品的形態,可以是片、膜、空心體、塊體、板狀體、筒體、複雜形狀體等,無特殊限定。作為成形方法,只要是熱塑性樹脂的一般成形方法即可,無特殊限定,可例舉擠出成形法、注塑成形法、吹塑成形法、發泡成形法、壓延成形法、壓力成形法、加熱成形法、真空成形法、粉末搪塑成形法等。樹脂成形品因優異的表面物性改良效果,可用於汽車元件、家電元件、雜貨等廣泛領域中的多種成品、半成品中。 〔實施例〕
以下,對本發明的具體實施方式進行說明,但本發明並不限定於此。
(表面物性改良劑組合物) 在容量0.5L的反應槽內分別以表3所示的比例投入表1所示的(A)蠟(混合物),以表3所示的比例投入表2所示的乙烯基單體(b1)~(b6),以表3所示的比例投入表3所示的(C)烴,並且將280g水、作為分散劑的1.6g的三磷酸鈣及0.4g的羥丙基甲基纖維素、作為分子量調節劑的0.02g的α-甲基苯乙烯二聚物、作為自由基聚合引發劑的0.66g的二(3,5,5-三甲基已醯基)過氧化物混合並投入反應槽中,在70℃下攪拌3小時進行反應。接著,將作為自由基聚合引發劑的0.1g的過硫酸鉀溶解在0.5g的水中投入到反應槽中,在70℃下反應1小時。然後,冷卻到40℃以下,經過過濾、乾燥工序得到表面物性改良劑組合物。
[表1]
[表2]
[表3]
(PC/ABS樹脂成形品) 相對於100質量份作為PC/ABS樹脂的Bayblend T65XF 901510(Bayer製),以表4所示比例添加上述得到的表面物性改良劑組合物,藉由雙軸擠出機(PCM-30,池貝製)在擠出溫度240℃下進行熔融混煉,得到熱塑性樹脂組合物的塑粒。接著,將該塑粒在筒體溫度240℃、模具溫度80℃下注塑成形,製成JIS K7113的1號試驗片、及55mm×80mm×t2mm的板狀試驗片。
對於所得到的試驗片,以下述方法評價成形外觀、耐擦傷性、嘎吱聲。其結果示於表4。
<成形外觀> 關於注塑成形品的外觀,藉由目測以下述標準進行判斷。 ◎:白色、成形品表面完全不存在流痕等注塑痕跡 ○:白色、成形品表面幾乎不存在流痕等注塑痕跡 ×:非白色、或成形品表面存在流痕等注塑痕跡 另外,流痕是指成形品的封口附近存在圓形波紋的表觀不良。
<耐擦傷性> 裝置使用加藤科技社製的Scratch-tester KK-01,試驗片使用JIS K7113的1號試驗片,以ISO19252為標準,以刮痕荷重:1~30N、刮痕距離:100mm、刮痕速度:100mm/sec、晶片:不銹鋼φ=1.0mm進行試驗。以白化傷痕開始的荷重為耐擦傷性的評價點。
<嘎吱聲> 嘎吱聲的評價,例如可以採用專利第5425535號中所示的方法。裝置使用Ziegler社製的stick-slip測定裝置SSP-02,試驗片使用55mm×80mm×t2mm的板狀試驗片。另外,作為匹配材料,將PC/ABS樹脂注塑成形,製成55mm×80mm×t2mm的試驗片。將試驗片固定在裝置上,在荷重5N、10N、40N,速度1mm/sec、4 mm/sec、10 mm/sec的條件下,各進行三次與匹配材料的摩擦,測定嘎吱聲風險值。根據德國汽車工業會的基準,以以下的標準判斷嘎吱聲。另外,該測定裝置中,嘎吱聲風險值以1~10的10個等級表示。 ○:嘎吱聲風險值為1~3 ×:嘎吱聲風險值為4~10
[表4]
從表4的結果可知,加入了各實施例的表面物性改良劑組合物的PC/ABS樹脂成形品表現了良好的耐擦傷性改良及嘎吱聲降低效果。其中,如實施例2-2-1至實施例2-2-11所示,加入了使乙烯基單體(b6)共聚的表面物性改良劑組合物的PC/ABS樹脂成形品尤其表現了良好效果。此外,關於表面物性改良劑組合物的添加比例,若對實施例2-1-1至實施例2-1-11進行比較,在相對於100質量份PC/ABS的表面物性改良劑組合物的添加比例為1~20質量份的實施例2-1-2至實施例2-1-11中,耐擦傷性的改良效果為良好的效果。同樣,若對實施例2-2-1至實施例2-2-11進行比較,在相對於100質量份PC/ABS的表面物性改良劑組合物的添加比例為1~20質量份的實施例2-2-2至實施例2-2-11中,耐擦傷性的改良效果為良好的效果。
另一方面,比較例2-1-1由於未使用表面物性改良劑組合物,耐擦傷性劣化,嘎吱聲大。比較例2-1-2及比較例2-2-1由於表面物性改良劑組合物的含量過少,耐擦傷性劣化,嘎吱聲大。相反,比較例2-1-3及比較例2-2-2的表面物性改良劑組合物的含量過多,成形外觀差。比較例2-3-1由於使用了表面物性改良劑組合物中未添加(B)成分的比較例1-1-1,因此成形外觀差。比較例2-3-2由於使用了表面物性改良劑組合物中(A)成分的含量過少的比較例1-1-2,耐擦傷性劣化,嘎吱聲大。比較例2-3-3由於使用了表面物性改良劑組合物中未添加(C)成分的比較例1-1-3,嘎吱聲大。比較例2-3-4由於使用了表面物性改良劑組合物中(C)成分含量過多的比較例1-1-4,成形外觀劣化,嘎吱聲大。比較例2-4-1由於使用了表面物性改良劑組合物中未添加(A)成分的比較例1-2-1,耐擦傷性劣化,嘎吱聲大。相反,比較例2-4-2由於使用了表面物性改良劑組合物中(A)成分含量過多的比較例1-2-2,成形外觀劣化。比較例2-4-3由於使用了表面物性改良劑組合物中(A)成分的含量過少的比較例1-2-3,耐擦傷性劣化,嘎吱聲大。比較例2-4-4由於使用了(B)成分中(b6)組成比例過多的比較例1-2-4,成形外觀劣化。
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Claims (4)
- 一種表面物性改良劑組合物,其含有(A)蠟、(B)乙烯基(共)聚合物及(C)碳原子數5~14的脂肪族烴, 該(A)係選自(a1)石蠟、(a2)微晶蠟、(a3)費托蠟及(a4)聚乙烯蠟中的至少一種, 該(B)係由選自(b1)(甲基)丙烯腈、(b2)碳原子數1~4的(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)下述式(1)所示(甲基)丙烯酸烷基酯類中的至少一種乙烯基單體進行自由基聚合而成, 相對於該(A)與該(B)的總量100質量份,該(A)係為50~98質量份, 相對於該(A)的總量,該(C)係為0.001~1質量%,R1:H或CH3,R2:碳原子數1~4的直鏈或支鏈烴基。
- 一種表面物性改良劑組合物,其含有(A)蠟、(B)乙烯基共聚物及(C)碳原子數5~14的脂肪族烴, 該(A)係選自(a1)石蠟、(a2)微晶蠟、(a3)費托蠟及(a4)聚乙烯蠟中的至少一種, 該(B)係由選自(b1)(甲基)丙烯腈、(b2)碳原子數1~4的(甲基)丙烯酸、(b3)(甲基)丙烯酸羥乙酯或(甲基)丙烯酸羥丙酯、(b4)苯乙烯及(b5)下述式(1)所示(甲基)丙烯酸烷基酯類中的至少一種乙烯基單體與(b6)一分子內具有聚矽氧烷基、及至少在一個末端具有乙烯基的乙烯基單體進行自由基聚合而得到的乙烯基共聚物, 相對於該(A)與該(B)的總量100質量份,該(A)係為50~98質量份, 相對於該(A)的總量,該(C)係為0.001~1質量%, 該(B)中的該(b6)的組成比例係為1~30質量%,R1:H或CH3,R2:碳原子數1~4的直鏈或支鏈烴基。
- 一種熱塑性樹脂組合物,其相對於由5~95質量份聚碳酸酯(PC)、5~95質量份丙烯腈-丁二烯-苯乙烯共聚物樹脂(ABS)構成的100質量份熱塑性樹脂,含有0.1~20質量份的如申請專利範圍第1或2項所述之表面物性改良劑組合物。
- 一種樹脂成形品,係由如申請專利範圍第3項所述之熱塑性樹脂組合物成形為預定形狀而成。
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| CN101094791A (zh) * | 2004-10-29 | 2007-12-26 | 伯斯蒂克公司 | 塑性材料如热熔性粘合剂的包装方法 |
| JP2009167352A (ja) * | 2008-01-18 | 2009-07-30 | Nof Corp | 樹脂成形体の表面物性改良剤、その製造方法及び用途 |
| WO2014020923A1 (ja) * | 2012-08-03 | 2014-02-06 | 日油株式会社 | ポリオレフィン樹脂からなる成形体の表面物性改良剤組成物と、これを含有する樹脂組成物及びその樹脂成形体 |
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| Publication number | Publication date |
|---|---|
| WO2016056528A1 (ja) | 2016-04-14 |
| JP6699174B2 (ja) | 2020-05-27 |
| CN106715594A (zh) | 2017-05-24 |
| TW201615794A (zh) | 2016-05-01 |
| KR20170070011A (ko) | 2017-06-21 |
| CN106715594B (zh) | 2019-09-03 |
| EP3205695A4 (en) | 2018-06-06 |
| EP3205695A1 (en) | 2017-08-16 |
| US20170306151A1 (en) | 2017-10-26 |
| JPWO2016056528A1 (ja) | 2017-07-20 |
| US10077361B2 (en) | 2018-09-18 |
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