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High-brightness polyphenylene sulfide alloy and preparation method thereof

The technology of polyphenylene sulfide and polyphenylene sulfide resin is applied in the field of high whiteness polyphenylene sulfide alloy and its preparation, which can solve the problems of poor color stability and discoloration, and achieve excellent high temperature resistance to color denaturation and endogenous heat. The effect of reducing and improving thermal stability

Inactive Publication Date: 2018-05-15
SICHUAN COREMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the problems of discoloration and poor color stability of the existing high-whiteness polyphenylene sulfide products at high temperature, the present invention provides a high-whiteness polyphenylene sulfide alloy. Thermal stability of whiteness polyphenylene sulfide color

Method used

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  • High-brightness polyphenylene sulfide alloy and preparation method thereof
  • High-brightness polyphenylene sulfide alloy and preparation method thereof
  • High-brightness polyphenylene sulfide alloy and preparation method thereof

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preparation example Construction

[0062] The preparation method of the above-mentioned high-whiteness polyphenylene sulfide alloy comprises the following steps:

[0063] [1] According to the weight ratio, mix polyphenylene sulfide resin, different resins, white inorganic mineral powder, glass fiber, antioxidant, coupling agent and lubricant in a high-speed mixer to obtain a mixed material;

[0064] [2] The mixed material obtained in step [1] is mixed and extruded on a twin-screw extruder;

[0065] [3] The material extruded in step [2] is drawn, pelletized, and dried to obtain a high-whiteness polyphenylene sulfide alloy material.

[0066] Preferably, the temperature of the high mixer described in step [1] is set between 30-120°C, the time is set to 2-4min, and the rotation speed is set to 800-1000rpm; the twin-screw described in step [2] The temperature of the extruder is set to 250-260°C for the first stage, 260-270°C for the second stage, 270-280°C for the third stage, 280-290°C for the fourth stage, 270-28...

Embodiment 1

[0076] Polyphenylene sulfide resin: 40wt%;

[0077] GMA-ethylene acrylate copolymer AX8900: 2wt%;

[0078] Calcium carbonate: 47wt%;

[0079] Glass fiber: 10wt%;

[0080] 1010 hindered phenolic antioxidant: 0.2wt%;

[0081] Vinyl alkoxy coupling agent: 0.4wt%;

[0082] Ethylene bis stearic acid amide: 0.4 wt%.

[0083] The preparation method is:

[0084] [1] Put the raw materials into the high mixer according to the formula, the temperature is 50°C, and mix at the speed of 800rpm for 2min;

[0085] [2] Extrude the mixed material in step [1] with a twin-screw extruder, pull, and pelletize to obtain the product.

[0086] The temperature settings are as follows: first-stage temperature 250°C, second-stage temperature 260°C, third-stage temperature 270°C, fourth-stage temperature 280°C, fifth-stage temperature 270°C, machine head temperature 300°C; host frequency: 30Hz; feeding frequency: 15Hz; Rotating speed of pelletizer: 600rpm.

Embodiment 2

[0088] Polyphenylene sulfide resin: 30wt%;

[0089] PA6: 10wt%;

[0090] Talc powder: 8.5wt%;

[0091] Calcium carbonate: 40wt%;

[0092] Glass fiber: 10wt%;

[0093] 1076 hindered phenolic antioxidant: 0.5wt%;

[0094] Mercaptoalkoxysilane agent: 0.5wt%;

[0095] Pentaerythritol stearate: 0.5 wt%.

[0096] The preparation method is:

[0097] [1] Put the raw materials into the high mixer according to the formula, the temperature is 100 ℃, and the speed of mixing is 1000rpm for 4min;

[0098] [2] Extrude the mixed material in step [1] with a twin-screw extruder, pull, and pelletize to obtain the product.

[0099] The temperature settings are as follows: first-stage temperature 260°C, second-stage temperature 270°C, third-stage temperature 280°C, fourth-stage temperature 290°C, fifth-stage temperature 280°C, machine head temperature 300°C; host frequency: 40Hz; feeding frequency: 15Hz; Pelletizer speed: 800rpm.

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Abstract

The invention belongs to the technical field of high polymer composites, and particularly relates to a high-brightness polyphenylene sulfide alloy and a preparation method of the alloy. In order to solve the problems that a color of the existing high-brightness polyphenylene sulfide product is changed at high temperature and the color stability is poorer, the high-brightness polyphenylene sulfidealloy comprises the following materials by weight percentage: 30-40wt% of polyphenylene sulfide resin, 2-10wt% of heterogeneous resin, 17.5-57.1wt% of white inorganic mineral powder, 10-30wt% of glassfiber, 0.2-0.5wt% of an antioxidant, 0.4-1wt% of a coupling agent and 0.3-1wt% of a lubricant. A modified material is high in brightness and heat resistance and excellent in forming processability, and can be used for electric products, automobile structure parts and decoration materials.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a high-whiteness polyphenylene sulfide alloy and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (Polyphenylene sulfide), referred to as PPS, is a high-performance special engineering plastic with excellent mechanical properties, thermal stability, corrosion resistance, dimensional stability and electrical insulation properties. It is widely used in electronic appliances, Aerospace, mechanical instrumentation and automotive structural parts. However, with the development of technology and changes in the market, the color stability requirements of polyphenylene sulfide composite materials are getting higher and higher, especially the demand for high whiteness polyphenylene sulfide composite materials is increasing. [0003] Due to the high activity of PPS, different degrees of thermochemical reactions will occur du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L51/06C08L77/02C08L77/06C08L25/06C08L67/02C08K13/04C08K3/26C08K7/14C08K5/20C08K3/34C08K3/30B29C47/92B29B9/06B29C48/92
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2003/265C08L81/02C08L2201/08C08L2205/03C08L51/06C08K13/04C08K3/26C08K7/14C08K5/20C08L77/02C08K3/34C08L77/06C08K3/30C08K5/098C08L25/06C08L83/04C08K5/544C08L67/02C08L91/06C08K7/08
Inventor 徐启奎赵银巧杨克斌钟辉
Owner SICHUAN COREMER CO LTD
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