CN1219421C - Carbon substrate for electromagnetic shielding and manufacturing method thereof - Google Patents
Carbon substrate for electromagnetic shielding and manufacturing method thereof Download PDFInfo
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- CN1219421C CN1219421C CN 03108727 CN03108727A CN1219421C CN 1219421 C CN1219421 C CN 1219421C CN 03108727 CN03108727 CN 03108727 CN 03108727 A CN03108727 A CN 03108727A CN 1219421 C CN1219421 C CN 1219421C
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- 239000000758 substrate Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 18
- 229910052799 carbon Inorganic materials 0.000 title abstract description 18
- 239000003610 charcoal Substances 0.000 claims abstract description 51
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 41
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 41
- 241001330002 Bambuseae Species 0.000 claims abstract description 41
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 41
- 239000011425 bamboo Substances 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 14
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000012779 reinforcing material Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
- 229920001568 phenolic resin Polymers 0.000 claims description 11
- 239000005011 phenolic resin Substances 0.000 claims description 11
- 229920005749 polyurethane resin Polymers 0.000 claims description 7
- 239000004753 textile Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000005034 decoration Methods 0.000 abstract description 2
- 230000005670 electromagnetic radiation Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 244000025254 Cannabis sativa Species 0.000 description 11
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 11
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 11
- 235000009120 camo Nutrition 0.000 description 11
- 235000005607 chanvre indien Nutrition 0.000 description 11
- 239000011487 hemp Substances 0.000 description 11
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000008187 granular material Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Dry Formation Of Fiberboard And The Like (AREA)
- Laminated Bodies (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Building Environments (AREA)
Abstract
本发明涉及一种以竹炭为基本材料的用于电磁屏蔽的炭基板及其制作方法，按重量百分比绝干竹炭颗粒83-92、固体份的合成树脂胶7-10、增强材料0-8的比例称取以上材料，合成树脂胶稀释到50%的液态并均匀拌入竹炭颗粒，拌胶后的竹炭颗粒进行铺装，铺装时可根据需要按层状结构加入增强材料，铺装好的板坯送入热压机，在热压温度135-145℃，热压压力5MPa或8MPa、热压时间每毫米板厚≥1.0分的条件下热压成板。本发明工艺简单，原料来源广泛，价格低廉，份量轻，它不仅可以作为吸收电磁辐射的电磁屏蔽材料广泛使用，还可以作为一种功能性的室内装饰材料使用。The present invention relates to a kind of carbon substrate for electromagnetic shielding with bamboo charcoal as the basic material and its preparation method, by weight percentage absolute dry bamboo charcoal particle 83-92, the synthetic resin glue of solid part 7-10, reinforcing material 0-8 Weigh the above materials in proportion, dilute the synthetic resin glue to 50% liquid state and mix it evenly into the bamboo charcoal particles. The bamboo charcoal particles after the glue mixing are paved. When paving, reinforcement materials can be added according to the layered structure as needed. The slab is sent into a hot press, and hot-pressed into a slab under the conditions of a hot-pressing temperature of 135-145°C, a hot-pressing pressure of 5MPa or 8MPa, and a hot-pressing time of ≥1.0 minutes per mm of plate thickness. The invention has the advantages of simple process, wide source of raw materials, low price and light weight. It can be widely used not only as an electromagnetic shielding material for absorbing electromagnetic radiation, but also as a functional interior decoration material.
Description
技术领域technical field
本发明涉及一种以竹炭为基本材料的用于电磁屏蔽的炭基板及其制作方法。The invention relates to a carbon substrate for electromagnetic shielding with bamboo charcoal as the basic material and a manufacturing method thereof.
背景技术Background technique
目前国内外用于防止电磁波或射线穿透性辐射的大多采用金属材料，或采用铜网、铁网等金属网状材料，或采用金属板状材料如防X射线的穿透的铅基金属板等。这些材料的电磁屏蔽作用都很强，但金属材料一是存在电磁波的较强反射，二是比较笨重，虽然电磁波和辐射广泛存在，但因其存在有这样的缺点，使这种金属的屏蔽材料还不能在更广泛的领域里采用。At present, metal materials are mostly used to prevent electromagnetic waves or ray penetrating radiation at home and abroad, or metal mesh materials such as copper mesh and iron mesh, or metal plate materials such as lead-based metal plates that prevent X-ray penetration, etc. . The electromagnetic shielding effect of these materials is very strong, but metal materials have strong reflection of electromagnetic waves on the one hand, and are relatively bulky. Although electromagnetic waves and radiation exist widely, due to such shortcomings, the shielding materials of this metal It cannot be adopted in a wider field.
发明内容Contents of the invention
本发明的目的是提供一种工艺简单、重量轻、主要以吸收电磁波和辐射起电磁屏蔽作用的电磁屏蔽炭基板，它不仅可以作为吸收电磁辐射的电磁屏蔽材料广泛使用，还可以作为一种功能性的室内装饰材料使用。The object of the present invention is to provide an electromagnetic shielding carbon substrate with simple process, light weight, and electromagnetic shielding effect mainly by absorbing electromagnetic waves and radiation. It can not only be widely used as an electromagnetic shielding material for absorbing electromagnetic radiation, but also as a functional Sexy interior decoration materials are used.
本发明的电磁屏蔽的炭基板，含有的重量百分比：The carbon substrate of the electromagnetic shielding of the present invention contains the weight percentage:
绝干竹炭颗粒 83-92Dry Bamboo Charcoal Granules 83-92
固体份的合成树脂胶 7-10Solid content of synthetic resin glue 7-10
增强材料 0-8Reinforcement material 0-8
所述固体份的合成树脂胶的重量百分比为10。所述竹炭颗粒的粒径为1-3毫米。所述的合成树脂胶可以是酚醛树脂胶或者聚氨脂树脂胶。所述的增强材料可以是纺织品也可以是金属网或薄型板。The weight percentage of the synthetic resin glue of the solid part is 10. The particle diameter of the bamboo charcoal particles is 1-3 mm. The synthetic resin glue can be phenolic resin glue or polyurethane resin glue. The reinforcing material can be textile or metal mesh or thin plate.
电磁屏蔽的炭基板的制作方法是按重量百分比绝干竹炭颗粒83-92、固体份的合成树脂胶7-10、增强材料0-8的比例秤取以上材料，合成树脂胶稀释到50％的液态并均匀拌入竹炭颗粒，拌胶后的竹炭颗粒进行铺装，铺装时可根据需要按层状结构加入增强材料，铺装好的板坯送入热压机，在热压温度135-145℃，热压压力5Mpa或8Mpa、热压时间每毫米板厚≥1.0分的条件下热压成板。The manufacture method of the carbon substrate of electromagnetic shielding is to take the above materials according to the ratio of absolute dry bamboo charcoal particles 83-92, solid part synthetic resin glue 7-10, reinforcing material 0-8 by weight percentage, and the synthetic resin glue is diluted to 50% Liquid and evenly mixed with bamboo charcoal granules, the bamboo charcoal granules after glue mixing are paved, and reinforcing materials can be added according to the layered structure when paving, and the paved slabs are sent to the hot press machine, and the hot pressing temperature is 135- 145°C, hot pressing pressure 5Mpa or 8Mpa, hot pressing time ≥ 1.0 minutes per mm plate thickness.
本发明的电磁屏蔽的炭基板，可以利用再生能力强的竹材经高温热解制得的竹炭为基本原料而制成，竹炭颗粒能很好地吸收电磁波和射线，而且来源广泛，价格低廉，分量轻；制得的炭板密度为0.8克/立方厘米，电磁屏蔽能力≥30db，耐火性能以火焰喷射板面烧穿炭板时间为≥9分，游离甲醛释放量干燥器法为≤0.2毫克/升、穿孔萃取法为≤2.5毫克/百克。The carbon substrate for electromagnetic shielding of the present invention can be made by using bamboo charcoal obtained by high-temperature pyrolysis of bamboo with strong regeneration ability as the basic raw material. Lightweight; the density of the prepared carbon plate is 0.8 g/cm3, the electromagnetic shielding ability is ≥30db, the fire resistance performance is ≥9 minutes when the surface of the flame sprayed plate burns through the carbon plate, and the release of free formaldehyde is ≤0.2 mg/cm3 by the dryer method. Liter, perforation extraction method is ≤2.5mg/100g.
具体实施方式Detailed ways
实施例一按重量百分比绝干竹炭颗粒∶固体份的酚醛树脂胶92∶8的比例备料。竹炭最好取粒径为1-3毫米的颗粒，将酚醛树脂胶稀释到50％的液态均匀拌入竹炭颗粒中，然后在铺有脱模材料的金属下垫板上均匀地铺装成板坯，加上上脱模材料和金属上垫板后送入热压机中热压，热压温度135℃，热压压力5Mpa，热压时间每毫米板厚≥1.0分，制得5毫米厚的纯炭板。这种纯炭板的静曲强度为2.3-2.7Mpa，弹性模量为400-500Mpa。Embodiment 1 The raw material is prepared according to the ratio of absolute dry bamboo charcoal particles in weight percent: solid part of phenolic resin glue 92:8. Bamboo charcoal is best to take particles with a particle size of 1-3 mm. Dilute the phenolic resin glue to a 50% liquid state and mix it evenly into the bamboo charcoal particles, and then evenly pave the board on the metal underlayment covered with release materials. The billet, plus the upper demoulding material and the metal backing plate, is sent to the hot press for hot pressing. The hot pressing temperature is 135°C, the hot pressing pressure is 5Mpa, and the hot pressing time is ≥ 1.0 minutes per mm thickness, and the thickness is 5 mm. pure carbon plate. The static bending strength of this pure carbon plate is 2.3-2.7Mpa, and the elastic modulus is 400-500Mpa.
实施例二按重量百分比绝干竹炭颗粒∶固体份的聚氨脂树脂胶93∶7的比例备料。竹炭最好取粒径为1-3毫米的颗粒，聚氨脂树脂胶为单组份水溶性聚氨脂树脂胶，将聚氨脂树脂胶稀释到固体含量50％的浓度后均匀地拌入竹炭颗粒中，然后按实施例一的方法铺装并热压成纯炭板，这种炭板的各种性能与实施例一的纯炭板的性能相同。Embodiment 2 The raw material is prepared according to the ratio of absolute dry bamboo charcoal particles in weight percent: solid portion of polyurethane resin glue 93:7. Bamboo charcoal is best to take particles with a particle size of 1-3 mm. The polyurethane resin glue is a one-component water-soluble polyurethane resin glue. Dilute the polyurethane resin glue to a concentration of 50% of the solid content and mix it evenly In the bamboo charcoal granules, pave and hot press into pure charcoal plate by the method of embodiment one then, the various performances of this charcoal plate are identical with the performance of the pure carbon plate of embodiment one.
实施例三按重量百分比绝干竹炭颗粒∶固体份的酚醛树脂胶∶无纺麻毡88∶10∶2的比例备料。竹炭最好取粒径为1-3毫米的颗粒，将部分酚醛树脂胶稀释到25％左右浓度用于浸无纺麻毡，浸透的无纺麻毡挤去多余胶液后在小于100℃的温度下烘干至6-8％的含水率备用，再将其余稀释到50％浓度的酚醛树脂胶加入到前述的胶液中后均匀拌入竹炭颗粒中，拌胶竹炭分成两份，以两层拌胶竹炭颗粒层夹一层浸胶无纺麻毡的结构铺装成板坯，然后进行热压，热压温度135-145℃，热压压力8Mpa，热压时间每毫米板厚1.0分，制得5-10毫米厚的复合增强炭板。这种炭板的静曲强度为4-7Mpa，弹性模量为500-1400Mpa。Embodiment 3 The raw material is prepared according to the ratio of absolute dry bamboo charcoal particles in weight percent: phenolic resin glue in solid part: non-woven hemp mat 88:10:2. Bamboo charcoal is best to take particles with a particle size of 1-3mm. Dilute part of the phenolic resin glue to a concentration of about 25% and use it to impregnate the non-woven hemp felt. Dry at high temperature to a moisture content of 6-8% for later use, then add the remaining phenolic resin glue diluted to 50% concentration into the aforementioned glue solution and evenly mix it into the bamboo charcoal particles, divide the mixed bamboo charcoal into two parts, and use two The structure of layer-mixed bamboo charcoal particles sandwiched by a layer of rubber-impregnated non-woven hemp felt is paved into a slab, and then hot-pressed. The hot-pressing temperature is 135-145°C, the hot-pressing pressure is 8Mpa, and the hot-pressing time is 1.0 minutes per mm of board thickness. , to produce a 5-10 mm thick composite reinforced carbon plate. The static bending strength of the carbon plate is 4-7Mpa, and the modulus of elasticity is 500-1400Mpa.
实施例四按重量百分比绝干竹炭颗粒∶固体份的酚醛树脂胶∶无纺麻毡86∶10∶4的比例备料。竹炭最好取粒径为1-3毫米的颗粒。按实施例三的方法备好浸胶无纺麻毡，并将稀释到50％浓度的酚醛树脂胶均匀拌入竹炭颗粒，然后按两层浸胶无纺麻毡夹一层竹炭颗粒层的结构铺装好板坯按实施例三的方法进行热压，制得两表面为无纺麻毡而性能比实施例三更好的复合强化炭板。Embodiment 4 The raw material is prepared according to the ratio of absolute dry bamboo charcoal particles in weight percent: phenolic resin glue in solid part: non-woven hemp felt 86:10:4. Bamboo charcoal is best to take particles with a particle size of 1-3 mm. Prepare the impregnated non-woven hemp felt by the method of embodiment three, and evenly mix the phenolic resin glue diluted to 50% concentration into the bamboo charcoal particles, then press the structure of two layers of rubber-impregnated non-woven hemp felt sandwiching a layer of bamboo charcoal particles The paved slab is hot-pressed according to the method of Example 3 to obtain a composite reinforced carbon slab whose two surfaces are non-woven hemp mats and whose performance is better than that of Example 3.
实施例五按重量百分比绝干竹炭颗粒∶固体份的酚醛树脂胶∶金属网86∶10∶4的比例备料。竹炭最好取粒径为1-3毫米的颗粒。将稀释到50％浓度的酚醛树脂胶拌入竹炭颗粒后，以两层拌胶竹炭夹一层金属网的结构铺装成板坯，按实施例一的方法热压，制得静曲强度大于6Mpa，弹性模量大于1000Mpa、电磁屏蔽能力大于40db的复合强化炭板。Embodiment 5 Prepare raw materials according to the ratio of absolute dry bamboo charcoal particles in weight percent: phenolic resin glue in solid part: metal mesh 86:10:4. Bamboo charcoal is best to take particles with a particle size of 1-3 mm. After the phenolic resin glue diluted to 50% concentration is mixed into the bamboo charcoal granules, a slab is paved with the structure of two layers of glue-mixed bamboo charcoal sandwiching a layer of metal mesh, and hot-pressed according to the method in Example 1 to obtain a static bending strength greater than 6Mpa, a composite reinforced carbon plate with an elastic modulus greater than 1000Mpa and an electromagnetic shielding capacity greater than 40db.
实施例六按重量百分比绝干竹炭颗粒∶固体份的聚氨脂树脂胶∶无纺麻毡∶木质单板83∶9∶3∶5的比例备料，木质单板以其含水率和树种密度、单板厚度和幅面尺寸计算其重量。竹炭最好取粒径为1-3毫米的颗粒，按实施例三的方法备好浸胶无纺麻毡和拌胶竹炭，然后按木质单板-无纺麻毡-拌胶竹炭颗粒-无纺麻毡-木质单板的层状结构进行铺装，按实施例三所述的热压温度、压力、时间制得两表面为木质单板中间为竹炭颗粒的复合增强炭板。这种炭板的静曲强度大于7Mpa、弹性模量大于1000Mpa。Embodiment six is absolutely dry bamboo charcoal particle by weight percentage: the polyurethane resin glue of solid portion: non-woven hemp mat: the ratio of wooden veneer 83:9:3:5 prepares materials, and wooden veneer is with its water content and tree species density, The veneer thickness and format size are used to calculate its weight. Bamboo charcoal preferably gets particle diameter and is the particle of 1-3 millimeter, get ready impregnated non-woven hemp mat and rubber-mixed bamboo charcoal by the method for embodiment three, then according to wooden veneer-non-woven hemp felt-mixed rubber bamboo charcoal particle-no The layered structure of spinning hemp felt-wooden veneer is paved, and the two surfaces are made of a composite reinforced carbon plate with bamboo charcoal particles in the middle of the wood veneer according to the hot pressing temperature, pressure and time described in embodiment three. The static bending strength of the carbon plate is greater than 7Mpa, and the modulus of elasticity is greater than 1000Mpa.
Claims (9)
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| US7836655B2 (en) | 2006-09-25 | 2010-11-23 | Teragren Llc | Bamboo flooring planks with glueless locking system |
| CN111943564B (en) * | 2020-08-22 | 2021-10-22 | 浙江农林大学 | A kind of multifunctional bamboo charcoal board and preparation method thereof |
| CN114106509A (en) * | 2021-12-08 | 2022-03-01 | 常熟东南塑料有限公司 | High-strength electromagnetic shielding phenolic molding plastic |
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