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Preparation method of polyphenylene sulfide plastic particle used for vehicle bumpers

A technology of automobile bumper and polyphenylene sulfide, which is applied in the field of preparation of polyphenylene sulfide plastic particles for automobile bumpers, can solve the problems of riding danger, brittleness, material impact performance and rigidity modification, etc., to achieve The effect of absorbing and alleviating external impact, simple production process and high surface strength

Inactive Publication Date: 2015-10-28
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of PPS are: ①The price is too high, which is low in high-temperature-resistant plastics, but it is much higher than general engineering plastics; ②Poor toughness and brittle; ③The viscosity is unstable during processing
At present, the impact resistance and dimensional stability of automobile plastic bumpers on the market are poor, which will lead to dangerous riding; the bumper will change color and deformation under high temperature; and the impact resistance is not high, the shrinkage rate is too large, and the size is unstable The plastic bumper materials of automobiles have not met people's requirements for safety
Therefore, people add various fillers or additives to modify it. However, many modification effects are not ideal. It is difficult to improve the impact performance and rigidity of materials by adding various additives in the same material system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing polyphenylene sulfide plastic particles for automobile bumpers, the method comprising the following steps: (1) In parts by mass, copolymerizing 50 parts of polyphenylene sulfide and modified ethylene-α-ethylene-octene 20 parts of polycarbodiimide, 11 parts of polycarbodiimide, 0.5 part of benzotriazole, 0.6 part of diacetone alcohol, 1 part of aluminum silicate ceramic fiber, 2 parts of vinyl acetate, 0.4 part of 2-mercaptobenzimidazole , 0.1 part of tall oil is added to the mixer, and the main material is obtained after mixing evenly; (2) 2 parts of anti-aging agent, 3 parts of toughening agent and 2 parts of dispersing agent are added to the main material obtained in step (1), and mixed evenly (3) Add the mixture obtained in step (2) into a twin-screw extruder, the screw speed is 400-450r / min, after mixing, melt and extrude at a temperature of 260°C-300°C to obtain granular co- (4) Cool the granular blend obtained in step (3) and then cut it int...

Embodiment 2

[0024] A method for preparing polyphenylene sulfide plastic particles for automobile bumpers, the method comprising the following steps: (1) In parts by mass, copolymerizing 60 parts of polyphenylene sulfide and modified ethylene-α-ethylene-octene 25 parts of polycarbodiimide, 12 parts of polycarbodiimide, 1 part of benzotriazole, 1 part of diacetone alcohol, 2 parts of aluminum silicate ceramic fiber, 3 parts of vinyl acetate, 1 part of 2-mercaptobenzimidazole , 0.2 parts of tall oil are added to the mixer, and the main material is obtained after mixing evenly; (2) 5 parts of anti-aging agent, 6 parts of toughening agent and 5 parts of dispersing agent are added to the main material obtained in step (1), and mixed evenly (3) Add the mixture obtained in step (2) into a twin-screw extruder, the screw speed is 400-450r / min, after mixing, melt and extrude at a temperature of 260°C-300°C to obtain granular co- (4) Cool the granular blend obtained in step (3) and then cut it into p...

Embodiment 3

[0030] A method for preparing polyphenylene sulfide plastic particles for automobile bumpers, the method comprising the following steps: (1) In parts by mass, copolymerizing 55 parts of polyphenylene sulfide and modified ethylene-α-ethylene-octene 23 parts of polycarbodiimide, 11.5 parts of polycarbodiimide, 0.75 part of benzotriazole, 0.8 part of diacetone alcohol, 1.5 parts of aluminum silicate ceramic fiber, 2.5 parts of vinyl acetate, 0.7 part of 2-mercaptobenzimidazole 1. Add 0.15 parts of tall oil into the mixer, and mix well to obtain the main material; (2) Add 3.5 parts of anti-aging agent, 4.5 parts of toughening agent and 3.5 parts of dispersant to the main material obtained in step (1), and mix well (3) Add the mixture obtained in step (2) into a twin-screw extruder, the screw speed is 400-450r / min, after mixing, melt and extrude at a temperature of 260°C-300°C to obtain granular co- (4) Cool the granular blend obtained in step (3) and then cut it into pellets and s...

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PUM

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Abstract

The invention discloses a preparation method of a polyphenylene sulfide plastic particle used for vehicle bumpers. The preparation method comprises following steps: ingredients are weighed according to a weight ratio, and are delivered into a mixer for uniform mixing; an auxiliary agent is added, and a mixture is obtained via uniform mixing; the mixture is delivered into a double-screw extruder for melt extrusion so as to obtain a granular mixture; the granular mixture is subjected to cooling and dicing so as to obtain the polyphenylene sulfide plastic particle. The preparation method is simple; operation is convenient; and cost is relatively low. Processability of bumpers prepared from the polyphenylene sulfide plastic particle is excellent; spraying is not needed; surface strength is high; external impact force can be absorbed and reduced effectively; and the safety of the front and back parts of vehicles is ensured.

Description

technical field [0001] The invention belongs to the field of polymer materials and relates to a method for preparing polyphenylene sulfide plastic particles for automobile bumpers. technical background [0002] Engineering plastics can be used as engineering materials and plastics that replace metal manufacturing machine parts, etc. The performance characteristics of engineering plastics are mainly: [0003] (1) Compared with general-purpose plastics, it has excellent heat resistance and cold resistance, and has excellent mechanical properties in a wide temperature range, and is suitable for use as structural materials; [0004] (2) Good corrosion resistance, less affected by the environment, and good durability; [0005] (3) Compared with metal materials, it is easy to process, has high production efficiency, and can simplify procedures and save costs; [0006] (4) Good dimensional stability and electrical insulation; [0007] (5) Light weight, high specific strength, a...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L23/26C08K13/04C08K7/10C08K5/3475C08K5/07C08K5/101C08K5/37
CPCC08L81/02B29B9/06B29C48/92B29C2948/9258C08L2205/035C08L23/0815C08L79/00C08L91/00C08K13/04C08K7/10C08K5/3475C08K5/07C08K5/101C08K5/378
Inventor 翟红波杨振枢韦洪屹
Owner SUZHOU POLYMER NEW MATERIALS TECH