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Polyphenylene sulfide modified material and preparation method and application thereof

A modified material, polyphenylene sulfide technology, applied in the field of polyphenylene sulfide modified material and its preparation, can solve the problems of rough product surface, lower impact resistance, lower paint spraying effect of injection molding products, etc., to achieve rigidity and Improvement in performance such as appearance, improvement in performance such as rigidity and appearance, and the effect of facilitating industrial mass production

Pending Publication Date: 2022-02-18
特塑(大连)高分子材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, PPS has also been gradually used in notebook computers. Due to the disadvantages of polyphenylene sulfide such as high brittleness, low rigidity, and low toughness, glass fiber is usually used to modify PPS to increase the rigidity of PPS. With the addition of glass fiber , making the fluidity of the modified PPS worse, the impact resistance is reduced, the surface of the product is rough, and there are many floating fibers, which cannot well meet the injection molding, performance and appearance requirements of the parts, and will also reduce the painting effect of the injection molding products.

Method used

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  • Polyphenylene sulfide modified material and preparation method and application thereof
  • Polyphenylene sulfide modified material and preparation method and application thereof
  • Polyphenylene sulfide modified material and preparation method and application thereof

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preparation example Construction

[0024] The preparation method of the preparation method of following embodiment and comparative example polyphenylene sulfide modified material comprises the steps:

[0025] S1: PPS raw material A for medium and low melting point, PPS raw material B for medium and high melting point, silane coupling agent, polyphosphoric acid, ethylene-methyl acrylate-glycidyl methacrylate terpolymer, liquid crystal polymer, Add ethylene copolymer, aromatic acid, kaolin, and 0.5wt% phosphorous acid solution into the mixer, the rotation speed of the large paddle of the mixer is 800r / min, the rotation speed of the small paddle is 800r / min, and the mixer runs for 4min to obtain a uniform mixture ;

[0026] S2: extrusion granulation: put the homogeneous mixture obtained in step S1 into an extruder for extrusion granulation, and at the same time side-feed glass fibers to obtain a composite material;

[0027] The processing parameters of the extruder are as follows: the rotational speed is 610r / min...

Embodiment 6-9

[0030] Table 2 implements the raw material composition of 6-9 polyphenylene sulfide modified materials

[0031] Component / kg Example 6 Example 7 Example 8 Example 9 PPS raw material A 43.2 46.2 46.2 46.2 PPS raw material B 5 5 5 5 glass fiber 43 45 43 43 A silane coupling agent 0.5 0.5 0.5 0.5 PPAs 0.1 0.1 0.1 0.1 AX8900 5 0 0 0 LCP 3 0 0 0 Ethylene copolymer 2.5 2.5 2.5 2.5 benzoic acid 0.7 3 3 0.7 Kaolin A 0 0 0 0 Kaolin B 2 2 2 2 0.5wt% phosphorous acid solution 0 0 3 3

[0032] In combination with Example 8 and Example 8 and Table 2, it can be seen that the other components except the 0.5wt% phosphorous acid solution total 100, and the addition amount of the 0.5wt% phosphorous acid solution is 3% of the sum of all other components.

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Abstract

The invention discloses a polyphenylene sulfide modified material and a preparation method and application thereof. The invention discloses a polyphenylene sulfide modified material and a preparation method thereof. The material comprises the following raw materials: 40-50 parts of a medium-low melt index PPS raw material A with a melt index range of 100-500, 3-10 parts of a medium-high melt index PPS raw material B with a melt index range of 500-800, 30-50 parts of glass fibers, 0.2-2 parts of a silane coupling agent, 0.05-0.3 part of polyphosphoric acid, 0-10 parts of an ethylene-methyl acrylate-glycidyl methacrylate terpolymer, 0-15 parts of a liquid crystal high-molecular polymer, 1-5 parts of an ethylene copolymer, 0.2-2 parts of aromatic acid, 0-5 parts of kaolin and 0-5 parts of 0.5 wt% phosphorous acid solution. The polyphenylene sulfide modified material has high flowability, high mechanical property and good paint spraying effect.

Description

technical field [0001] The invention relates to the technical field of polyphenylene sulfide materials, in particular to a polyphenylene sulfide modified material and its preparation method and application. Background technique [0002] Polyphenylene sulfide (PPS) is a special engineering plastic with excellent comprehensive performance. It has the characteristics of high strength, good chemical corrosion resistance, flame retardancy, and creep resistance. It is widely used in automobiles, electronics, aerospace, and chemical industries. field. In recent years, PPS has also been gradually used in notebook computers. Due to the disadvantages of polyphenylene sulfide such as high brittleness, low rigidity, and low toughness, glass fiber is usually used to modify PPS to increase the rigidity of PPS. With the addition of glass fiber , making the fluidity of the modified PPS worse, the impact resistance is reduced, the surface of the product is rough, and there are many floating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L23/08C08L101/12C08K7/14C08K3/32C08K3/34
CPCC08L81/02C08K2003/329C08L2205/025C08L23/0884C08L101/12C08K7/14C08K3/32C08K3/346
Inventor 焦华郭连龙
Owner 特塑(大连)高分子材料有限公司
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