WO2019174210A1 - 一种高阻抗的导热性好的塑料及其制备方法 - Google Patents

一种高阻抗的导热性好的塑料及其制备方法 Download PDF

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WO2019174210A1
WO2019174210A1 PCT/CN2018/105866 CN2018105866W WO2019174210A1 WO 2019174210 A1 WO2019174210 A1 WO 2019174210A1 CN 2018105866 W CN2018105866 W CN 2018105866W WO 2019174210 A1 WO2019174210 A1 WO 2019174210A1
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parts
montmorillonite
finished product
mixture
mineral oil
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French (fr)
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徐建国
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淄博名堂教育科技有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
    • C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06—Waxes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/14—Solid materials, e.g. powdery or granular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Definitions

  • the invention relates to the field of plastics, in particular to a high-impedance plastic with good thermal conductivity.
  • Plastic is a polymer compound which is polymerized by addition polymerization or polycondensation reaction. It is commonly known as plastic or resin. It can be freely changed in composition and shape. It is made of synthetic resin and filler, plasticizer, stabilizer and lubricant. And additives such as colorants. The emergence of plastic materials has improved the quality of modern human life and promoted the progress of human civilization.
  • PBT Polybutylene terephthalate
  • PBT Polybutylene terephthalate
  • PBT Polybutylene terephthalate
  • PBT is a milky white translucent to opaque, crystalline thermoplastic polyester. It has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, low weather resistance, low water absorption, only 0.1%, and maintains various physical properties (including electrical properties) and electrical insulation in a humid environment.
  • the volume resistance and dielectric loss are large. It is widely used in communications, electronics, automotive, engineering machinery and other industries. With the development of industrial production and science and technology, some areas requiring high thermal conductivity of materials have put forward higher requirements for thermal conductive materials. It is hoped that the materials have excellent comprehensive performance, and the thermal conductivity of PBT is about 0.22w/m ⁇ k.
  • the volume resistivity is >10 4 ⁇ cm, and people will add thermal conductive materials to modify them, but the volume resistivity will be significantly reduced, which will not meet the needs of the product, which brings inconvenience to
  • An object of the present invention is to provide a high-impedance plastic having good thermal conductivity to solve the problems set forth in the above background art.
  • the present invention provides the following technical solutions:
  • a high-impedance plastic with good thermal conductivity including the following raw materials by weight: PBT36-50 parts, ABS micropowder 16-24 parts, oleic acid amide 0.05-0.8 parts, mineral oil 2-3.5 parts, benzophenone 0.2 - 2 parts, 0.6-1.5 parts of p-benzoquinone, 4-6 parts of monophenyl diisooctyl phosphite, 0.4-1 part of montmorillonite, and 1.6-4 parts of carrageenan.
  • the montmorillonite is sodium-based montmorillonite
  • the mineral oil is white mineral oil.
  • the ABS fine powder has a molecular weight of 1.0 ⁇ 10 4 to 5.0 ⁇ 10 4 and a particle size of 1 to 20 ⁇ m.
  • the preparation method of the high-resistance plastic with good thermal conductivity is as follows:
  • the ABS micropowder, oleic acid amide and mineral oil are uniformly mixed at 40-55 degrees Celsius, then montmorillonite is added thereto and stirred at 80-95 degrees Celsius for 15-25 minutes, and cooled to normal temperature to obtain a first mixture. ;
  • Step 2 mixing PBT, benzophenone, carrageenan and monophenyl diisooctyl phosphite and adding a suitable amount of water for ball milling, the ball milling temperature is 32-45 degrees Celsius, to obtain a second mixture;
  • Step three mixing the first mixture, the second mixture and the p-benzoquinone in a mixer rotating at 1200-2400 rpm for 5-10 minutes to obtain a semi-finished product;
  • Step four sealing the semi-finished product and placing it for 10-15 hours;
  • Step 5 the placed semi-finished product is sent into a twin-screw extruder, and the temperature of the twin-screw extruder is controlled to be 180-300 degrees Celsius. Under the conveying, shearing and kneading of the screw, the material is melted and compounded, and then After extrusion, drawing, cooling, and pelletizing, the finished product can be obtained.
  • the ball-to-ball ratio of the ball mill in step 2 is 60-80:1.
  • the invention Compared with the prior art, the invention has the advantages that the raw material of the invention has wide sources and the preparation process is simple, and the prepared product has excellent mechanical properties and heat conduction system under the synergistic action of various raw materials, and the volume resistivity is maintained at 10 13 ⁇ , with good application prospects.
  • a high-impedance plastic with good thermal conductivity including the following raw materials by weight: 36 parts of PBT, 16 parts of ABS micropowder, 0.05 parts of oleic acid amide, 2 parts of mineral oil, 0.2 parts of benzophenone, 0.6 parts of p-benzoquinone, 4 parts of monophenyl diisooctyl phosphite, 0.4 parts of montmorillonite and 1.6 parts of carrageenan.
  • the montmorillonite is made of sodium-based montmorillonite, and the mineral oil is white mineral oil.
  • the preparation method of the high-resistance plastic with good thermal conductivity is as follows:
  • Step one mixing ABS fine powder, oleic acid amide and white mineral oil at 44 degrees Celsius, then adding sodium montmorillonite thereto and stirring at 82 degrees Celsius for 18 minutes, and cooling to normal temperature to obtain a first mixture;
  • Step two mixing PBT, benzophenone, carrageenan and monophenyl diisooctyl phosphite and adding a suitable amount of water for ball milling, the ball milling temperature is 38 degrees Celsius, to obtain a second mixture;
  • Step three mixing the first mixture, the second mixture and the p-benzoquinone in a mixer at a rotation speed of 1500 rpm for 6 minutes to obtain a semi-finished product;
  • Step four sealing the semi-finished product and placing it for 12 hours;
  • Step 5 the placed semi-finished product is sent into a twin-screw extruder, and the temperature of the twin-screw extruder is controlled to be 220 degrees Celsius. Under the conveying, shearing and mixing of the screw, the material is melted, compounded, and then squeezed. The finished product can be obtained by pulling out, pulling, cooling and dicing.
  • a high-impedance plastic with good thermal conductivity including the following raw materials by weight: PBT 41 parts, ABS fine powder 19 parts, oleic acid amide 0.25 parts, mineral oil 2.2 parts, benzophenone 0.7 parts, p-benzoquinone 1.1 parts, 4.8 parts of monophenyl diisooctylphosphite, 0.6 parts of montmorillonite and 2.3 parts of carrageenan.
  • the molecular weight of the ABS fine powder is 1.0 ⁇ 10 4 - 5.0 ⁇ 10 4 and the particle size is 8 ⁇ m.
  • the preparation method of the high-resistance plastic with good thermal conductivity is as follows:
  • Step one mixing ABS fine powder, oleic acid amide and mineral oil at 46 degrees Celsius, then adding montmorillonite thereto and stirring at 88 degrees Celsius for 21 minutes, and cooling to normal temperature to obtain a first mixture;
  • Step 2 mixing PBT, benzophenone, carrageenan and monophenyl diisooctyl phosphite and adding a suitable amount of water for ball milling, the ball milling temperature is 36 degrees Celsius, to obtain a second mixture;
  • Step three mixing the first mixture, the second mixture and the p-benzoquinone in a mixer rotating at 1800 rpm for 9 minutes to obtain a semi-finished product;
  • Step four sealing the semi-finished product and placing it for 13 hours;
  • Step 5 the placed semi-finished product is sent into a twin-screw extruder, and the temperature of the twin-screw extruder is controlled to be 220 degrees Celsius. Under the conveying, shearing and mixing of the screw, the material is melted, compounded, and then squeezed. The finished product can be obtained by pulling out, pulling, cooling and dicing.
  • a high-impedance plastic with good thermal conductivity including the following raw materials by weight: PBT46 parts, ABS fine powder 23 parts, oleic acid amide 0.55 parts, mineral oil 3.1 parts, benzophenone 1.5 parts, p-benzoquinone 1.3 parts, 5.6 parts of monophenyl diisooctylphosphite, 0.9 parts of montmorillonite and 3.4 parts of carrageenan.
  • the molecular weight of the ABS fine powder is 1.0 ⁇ 10 4 - 5.0 ⁇ 10 4 and the particle size is 10 ⁇ m.
  • the preparation method of the high-resistance plastic with good thermal conductivity is as follows:
  • Step one mixing ABS fine powder, oleic acid amide and mineral oil at 53 degrees Celsius, then adding montmorillonite thereto and stirring at 92 degrees Celsius for 23 minutes, and cooling to normal temperature to obtain a first mixture;
  • Step two PBT, benzophenone, carrageenan and monophenyl diisooctyl phosphite are mixed and added with appropriate amount of water for ball milling, the ball to material ratio is 70:1, the ball milling temperature is 44 degrees Celsius, and the second is obtained. mixture;
  • Step three mixing the first mixture, the second mixture and the p-benzoquinone in a mixer rotating at 2100 rpm for 7 minutes to obtain a semi-finished product;
  • Step four sealing the semi-finished product and placing it for 13 hours;
  • Step 5 the placed semi-finished product is sent into a twin-screw extruder, and the temperature of the twin-screw extruder is controlled to be 260 degrees Celsius. Under the conveying, shearing and mixing of the screw, the material is melted, compounded, and then squeezed. The finished product can be obtained by pulling out, pulling, cooling and dicing.
  • a high-impedance plastic with good thermal conductivity including the following raw materials by weight: 50 parts of PBT, 24 parts of ABS fine powder, 0.8 parts of oleic acid amide, 3.5 parts of mineral oil, 2 parts of benzophenone, 1.5 parts of p-benzoquinone, 6 parts of monophenyl diisooctyl phosphite, 1 part of montmorillonite and 4 parts of carrageenan.
  • the montmorillonite is made of sodium-based montmorillonite, and the mineral oil is white mineral oil.
  • the molecular weight of the ABS fine powder is 1.0 ⁇ 10 4 - 5.0 ⁇ 10 4 and the particle size is 16 ⁇ m.
  • the preparation method of the high-resistance plastic with good thermal conductivity is as follows:
  • Step one mixing ABS fine powder, oleic acid amide and white mineral oil at 50 degrees Celsius, then adding sodium montmorillonite thereto and stirring at 92 degrees Celsius for 20 minutes, and cooling to normal temperature to obtain a first mixture;
  • Step two PBT, benzophenone, carrageenan and monophenyl diisooctyl phosphite are mixed and added with appropriate amount of water for ball milling, the ball to material ratio is 75:1, the ball milling temperature is 45 degrees Celsius, and the second is obtained. mixture;
  • Step three mixing the first mixture, the second mixture and the p-benzoquinone in a mixer rotating at 2400 rpm for 8 minutes to obtain a semi-finished product;
  • Step four sealing the semi-finished product and placing it for 1, 4 hours;
  • Step 5 the placed semi-finished product is sent into a twin-screw extruder, and the temperature of the twin-screw extruder is controlled to be 280 degrees Celsius. Under the conveying, shearing and mixing of the screw, the material is melted, compounded, and then squeezed. The finished product can be obtained by pulling out, pulling, cooling and dicing.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

本发明公开了一种高阻抗的导热性好的塑料及其制备方法，包括以下重量份的原料：PBT36-50份、ABS微粉16-24份、油酸酰胺0.05-0.8份、矿油2-3.5份、二苯甲酮0.2-2份、对苯醌0.6-1.5份、一苯基二异辛基亚磷酸酯4-6份、蒙脱土0.4-1份和卡拉胶1.6-4份。本发明原料来源广泛，制备工艺简单，在各种原料的协同作用下，制备的成品具有优异的力学性能和导热系统，体积电阻率保持在1013Ω，具有良好的应用前景。

Description

一种高阻抗的导热性好的塑料及其制备方法 技术领域
本发明涉及塑料领域，具体是一种高阻抗的导热性好的塑料。
背景技术
塑料是以单体为原料，通过加聚或缩聚反应聚合而成的高分子化合物，俗称塑料或树脂，可以自由改变成分及形体样式，由合成树脂及填料、增塑剂、稳定剂、润滑剂、色料等添加剂组成。塑料材料制品的出现，提高了人类现代生活的质量，推动人类社会文明的进步。
聚对苯二甲酸丁二醇酯简称PBT，PBT为乳白色半透明到不透明、结晶型热塑性聚酯。具有高耐热性、韧性、耐疲劳性，自润滑、低摩擦系数，耐候性、吸水率低，仅为0.1％，在潮湿环境中仍保持各种物性(包括电性能)，电绝缘性，但体积电阻、介电损耗大。被广泛应用于通讯、电子电器、汽车、工程机械等行业。随着工业生产和科学技术的发展，一些对材料导热性能要求较高的领域对导热材料提出了更高要求，希望材料具有优良的综合性能，PBT的导热系数约为0.22w/m·k，体积电阻率＞10 4Ω·cm，人们会在其中添加导热材料进行改性，但是会导致其体积电阻率明显下降，不能满足产品的使用需求，这就为人们的使用带来了不便。
发明内容
本发明的目的在于提供一种高阻抗的导热性好的塑料，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种高阻抗的导热性好的塑料，包括以下重量份的原料：PBT36-50份、ABS微粉16-24份、油酸酰胺0.05-0.8份、矿油2-3.5份、二苯甲酮0.2-2份、对苯醌0.6-1.5份、一苯基二异辛基亚磷酸酯4-6份、蒙脱土0.4-1份和卡拉胶1.6-4份。
作为本发明进一步的方案：蒙脱土采用钠基蒙脱土，矿油采用白矿油。
作为本发明进一步的方案：ABS微粉的分子量为1.0×10 4-5.0×10 4，粒径大小为1-20um。
所述高阻抗的导热性好的塑料的制备方法，具体步骤如下：
步骤一，将ABS微粉、油酸酰胺和矿油在40-55摄氏度下混合均匀，然后向其 中加入蒙脱土并且在80-95摄氏度下搅拌15-25分钟，冷却至常温，得到第一混合物；
步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球磨温度为32-45摄氏度，得到第二混合物；
步骤三，将第一混合物、第二混合物和对苯醌在转速为1200-2400rpm的混料机中混合5-10分钟，得到半成品；
步骤四，将半成品密封并且放置10-15小时；
步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为180-300摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
作为本发明进一步的方案：步骤二中球磨的球料比为60-80:1。
与现有技术相比，本发明的有益效果是：本发明原料来源广泛，制备工艺简单，在各种原料的协同作用下，制备的成品具有优异的力学性能和导热系统，体积电阻率保持在10 13Ω，具有良好的应用前景。
具体实施方式
下面结合具体实施方式对本专利的技术方案作进一步详细地说明。
实施例1
一种高阻抗的导热性好的塑料，包括以下重量份的原料：PBT36份、ABS微粉16份、油酸酰胺0.05份、矿油2份、二苯甲酮0.2份、对苯醌0.6份、一苯基二异辛基亚磷酸酯4份、蒙脱土0.4份和卡拉胶1.6份。蒙脱土采用钠基蒙脱土，矿油采用白矿油。
所述高阻抗的导热性好的塑料的制备方法，具体步骤如下：
步骤一，将ABS微粉、油酸酰胺和白矿油在44摄氏度下混合均匀，然后向其中加入钠基蒙脱土并且在82摄氏度下搅拌18分钟，冷却至常温，得到第一混合物；
步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球磨温度为38摄氏度，得到第二混合物；
步骤三，将第一混合物、第二混合物和对苯醌在转速为1500rpm的混料机中混合6分钟，得到半成品；
步骤四，将半成品密封并且放置12小时；
步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为220摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
实施例2
一种高阻抗的导热性好的塑料，包括以下重量份的原料：PBT41份、ABS微粉19份、油酸酰胺0.25份、矿油2.2份、二苯甲酮0.7份、对苯醌1.1份、一苯基二异辛基亚磷酸酯4.8份、蒙脱土0.6份和卡拉胶2.3份。ABS微粉的分子量为1.0×10 4-5.0×10 4，粒径大小为8um。
所述高阻抗的导热性好的塑料的制备方法，具体步骤如下：
步骤一，将ABS微粉、油酸酰胺和矿油在46摄氏度下混合均匀，然后向其中加入蒙脱土并且在88摄氏度下搅拌21分钟，冷却至常温，得到第一混合物；
步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球磨温度为36摄氏度，得到第二混合物；
步骤三，将第一混合物、第二混合物和对苯醌在转速为1800rpm的混料机中混合9分钟，得到半成品；
步骤四，将半成品密封并且放置13小时；
步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为220摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
实施例3
一种高阻抗的导热性好的塑料，包括以下重量份的原料：PBT46份、ABS微粉23份、油酸酰胺0.55份、矿油3.1份、二苯甲酮1.5份、对苯醌1.3份、一苯基二异辛基亚磷酸酯5.6份、蒙脱土0.9份和卡拉胶3.4份。ABS微粉的分子量为1.0×10 4-5.0×10 4，粒径大小为10um。
所述高阻抗的导热性好的塑料的制备方法，具体步骤如下：
步骤一，将ABS微粉、油酸酰胺和矿油在53摄氏度下混合均匀，然后向其中加入蒙脱土并且在92摄氏度下搅拌23分钟，冷却至常温，得到第一混合物；
步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球料比为70:1，球磨温度为44摄氏度，得到第二混合物；
步骤三，将第一混合物、第二混合物和对苯醌在转速为2100rpm的混料机中混合7分钟，得到半成品；
步骤四，将半成品密封并且放置13小时；
步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为260摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
实施例4
一种高阻抗的导热性好的塑料，包括以下重量份的原料：PBT50份、ABS微粉24份、油酸酰胺0.8份、矿油3.5份、二苯甲酮2份、对苯醌1.5份、一苯基二异辛基亚磷酸酯6份、蒙脱土1份和卡拉胶4份。蒙脱土采用钠基蒙脱土，矿油采用白矿油。ABS微粉的分子量为1.0×10 4-5.0×10 4，粒径大小为16um。
所述高阻抗的导热性好的塑料的制备方法，具体步骤如下：
步骤一，将ABS微粉、油酸酰胺和白矿油在50摄氏度下混合均匀，然后向其中加入钠基蒙脱土并且在92摄氏度下搅拌20分钟，冷却至常温，得到第一混合物；
步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球料比为75:1，球磨温度为45摄氏度，得到第二混合物；
步骤三，将第一混合物、第二混合物和对苯醌在转速为2400rpm的混料机中混合8分钟，得到半成品；
步骤四，将半成品密封并且放置1,4小时；
步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为280摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
对比例
除不含有卡拉胶，其余组分和制备方法均与实施例2相同。
对实施例1-4的产品和对比例的产品进行性能测试，测试结果见表1。
表1
Figure PCTCN2018105866-appb-000001
从表1中可以看出，实施例1-4的产品比对比例具有优异的力学性能，其导热系数有显著提高，体积电阻率保持在10 13Ω，具有良好的应用前景。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (5)

  1. 一种高阻抗的导热性好的塑料，其特征在于，包括以下重量份的原料：PBT36-50份、ABS微粉16-24份、油酸酰胺0.05-0.8份、矿油2-3.5份、二苯甲酮0.2-2份、对苯醌0.6-1.5份、一苯基二异辛基亚磷酸酯4-6份、蒙脱土0.4-1份和卡拉胶1.6-4份。
  2. 根据权利要求1所述的高阻抗的导热性好的塑料，其特征在于，所述蒙脱土采用钠基蒙脱土，矿油采用白矿油。
  3. 根据权利要求1所述的高阻抗的导热性好的塑料，其特征在于，所述ABS微粉的分子量为1.0×10 4-5.0×10 4，粒径大小为1-20um。
  4. 一种如权利要求1-3任一所述的高阻抗的导热性好的塑料的制备方法，其特征在于，具体步骤如下：
    步骤一，将ABS微粉、油酸酰胺和矿油在40-55摄氏度下混合均匀，然后向其中加入蒙脱土并且在80-95摄氏度下搅拌15-25分钟，冷却至常温，得到第一混合物；
    步骤二，将PBT、二苯甲酮、卡拉胶和一苯基二异辛基亚磷酸酯混合并且加入适量的水进行球磨，球磨温度为32-45摄氏度，得到第二混合物；
    步骤三，将第一混合物、第二混合物和对苯醌在转速为1200-2400rpm的混料机中混合5-10分钟，得到半成品；
    步骤四，将半成品密封并且放置10-15小时；
    步骤五，将放置后的半成品送入双螺杆挤出机中，控制双螺杆挤出机的温度为180-300摄氏度，在螺杆的输送、剪切和混炼下，将物料熔化、复合，然后经挤出、拉条、冷却、切粒，即可得到成品。
  5. 根据权利要求4所述的高阻抗的导热性好的塑料的制备方法，其特征在于，所述步骤二中球磨的球料比为60-80:1。
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