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Syndiotactic polystyrene flame-retardant composite material

A flame-retardant composite material and polystyrene technology, applied in the field of polymer materials, can solve the problems of low heat resistance and flame retardancy, limited application range, organic solvent pollution, etc., and achieve good durability and flexible processing methods , the effect of improving the impact performance

Active Publication Date: 2017-05-31
古道尔工程塑胶(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

sPS has excellent development prospects, and the potential market is very broad. However, sPS has defects such as high brittleness, low mechanical, heat resistance and flame retardancy, which greatly limit its application range. It must be modified to Adapt to the application of structural materials
[0003] With the upgrading and development of industries such as electronic appliances and automobiles, people have higher and higher requirements for appearance and the need for anti-counterfeiting. The traditional processing method for obtaining patterns on plastic surfaces is basically ink printing. This process is not only cumbersome and inefficient, but also It will cause a large amount of organic solvent pollution, long-term exposure will also cause harm to the human body, it is difficult to meet the needs of reality

Method used

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  • Syndiotactic polystyrene flame-retardant composite material

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preparation example Construction

[0038] The preparation method of the above-mentioned syndiotactic polystyrene flame-retardant composite material comprises the following steps:

[0039] Step S110, drying the sPS and PA66.

[0040] In one embodiment, the sPS and PA66 are air-dried at 100° C. to 120° C. for 1 hour to 4 hours, respectively.

[0041] Of course, when the sPS and PA66 are relatively dry, no drying treatment is required, and step S110 can be omitted.

[0042] Step S120, after stirring and mixing the dried sPS and PA66 with a compatibilizer and a coupling agent evenly, adding laser engraving powder, antioxidant, nucleating agent and auxiliary agent in sequence and mixing evenly to obtain a premix.

[0043] In one of the embodiments, add the dried sPS and PA66, compatibilizer and coupling agent into the mixer, stir and mix at the speed of 200 rpm to 500 rpm for 1 minute to 3 minutes, and wait for the mixer to stop Finally, add flame retardant, flame retardant synergist, radium engraving powder, anti...

Embodiment 1

[0051] Select the sPS resin with a syndiotacticity of 97%, a weight-average molecular weight of 300,000, and a PA66 resin with an intrinsic viscosity of 3.0dl / g. After blast drying at 120°C for 3 hours, dry 40 parts of sPS, Add 20 parts of PA66, 4.2 parts of hydrogenated styrene-butadiene-styrene block copolymer grafted maleic anhydride, and 0.4 parts of KH550 (silane coupling agent) into the mixer in turn, and stir and mix at a speed of 200 rpm After stirring for 3 minutes, after the mixer stopped, 12.1 parts of decabromodiphenylethane, 6 parts of brominated polystyrene, 3 parts of antimony trioxide (average particle size of 0.9 microns), 2 parts of kaolin (average Particle size is 1.2 microns), 0.3 parts titanium dioxide (average particle size is 0.3 microns), 0.2 parts neodymium oxide (average particle size is 0.5 microns), 0.2 parts bismuth oxide (average particle size is 0.5 microns), 0.3 parts basic phosphoric acid Copper (average particle size is 1.3 micron), 0.2 part o...

Embodiment 2

[0055] Select the sPS resin with a syndiotacticity of 97.5%, a weight average molecular weight of 400,000, and a PA66 resin with an intrinsic viscosity of 2.7dl / g. After drying for 3 hours at 120°C, 35 parts of dried sPS, 11.5 parts of PA66, 5 parts of compatibilizer acrylate-glycidyl ester-ethylene copolymer, 0.3 parts of isopropyl tris(dioctyl pyrophosphate acyloxy) titanate coupling agent were added to the mixer in turn, and at 250 rpm After stirring and mixing at a speed of 1 / min for 2 minutes, after the mixer stopped, add 16 parts of decabromodiphenylethane, 3 parts of antimony trioxide (average particle diameter is 0.9 micron), 3 parts of montmorillonite ( The average particle size is 0.5 microns), 3 parts of barium sulfate (average particle size is 2.6 microns), 1 part of tin oxide (average particle size is 0.7 microns), 1 part of copper chromite (average particle size is 0.5 microns), 0.3 Part of antioxidant 1076, 0.4 part of antioxidant 168, 0.2 part of nucleating age...

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Abstract

The invention relates to a syndiotactic polystyrene flame-retardant composite material. The syndiotactic polystyrene flame-retardant composite material comprises the following components in parts by weight: 15-40 parts of syndiotactic polystyrene, 5.7-20 parts of polyhexamethylene adipamide, 16-20 parts of flame retardant, 4-6 parts of flame-retardant synergistic agent, 3.5-6 parts of compatilizer, 1-5 parts of laser etching powder, 0.3-0.6 part of coupling agent, 0.4-0.7 part of antioxidant and 10-50 parts of glass fiber, wherein the laser etching powder is selected from at least one of silicon dioxide, titanium dioxide, zinc sulfide, chromic oxide, neodymium oxide, bismuth oxide, tin oxide, zinc molybdate, ammonium molybdate, basic cupric phosphate, copper oxide, copper chromite black, copper carbonate, copper sulfate, copper chloride, copper chromite and carbon black. The syndiotactic polystyrene flame-retardant composite material is simple to machine, and has favorable mechanical property, flame retardancy and heat resistance.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a syndiotactic polystyrene flame-retardant composite material. Background technique [0002] Syndiotactic polystyrene (sPS) is a new type of engineering plastic with low specific gravity, low dielectric constant, high flexural modulus, excellent heat resistance, good stiffness, high melting point (Tm about 270°C) and excellent solvent resistance Sexuality, steam resistance characteristics. sPS has excellent development prospects, and the potential market is very broad. However, sPS has defects such as high brittleness, low mechanical, heat resistance and flame retardancy, which greatly limit its application range. It must be modified to Adapt to the application of structural materials. [0003] With the upgrading and development of industries such as electronic appliances and automobiles, people have higher and higher requirements for appearance and the need for anti-counterfei...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L77/06C08L51/00C08L33/08C08L23/08C08L63/00C08K13/04C08K7/14C08K5/03C08K3/22C08K3/34C08K3/30C08K3/24C08K5/098C08K3/04C08K3/36
CPCC08K2201/014C08L25/06C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L2205/08C08L77/06C08L51/006C08K13/04C08K7/14C08K5/03C08K3/2279C08K3/346C08K2003/2241C08L33/08C08K2003/3045C08L23/0853C08K2003/2231C08K3/24C08K2003/3036C08K5/098C08K3/04C08L63/00C08K3/36
Inventor 刘辉陶德良
Owner 古道尔工程塑胶(深圳)有限公司
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