Reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and preparation method thereof

A technology with high glass fiber content and polyphenylene sulfide, applied in the direction of coating, etc., can solve problems such as poor compatibility, rough surface, and many floating fibers

Pending Publication Date: 2021-05-18
FUHAI (DONGYING) ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation of traditional polyphenylene sulfide composites, the amount of glass fiber is usually around 40%, further increasing the glass fiber content It is difficult to shape, its structure is unstable, its mechanical properties especially impact properties are deteriorated, so its practicality is very poor
In addition, although further increasing the content of glass fiber can improve the mechanical properties of PPS, if the compatibility between glass fiber and PPS is not good, it will lead to poor fluidity, and glass fiber will easily float out of the surface of the material. , so that the surface is rough, the gloss is poor, and there are many floating fibers, so the appearance quality of the product is poor
At the same time, with the further increase of the glass fiber content, the glass fiber in the resin shows obvious orientation in the parallel and vertical directions, which makes the shrinkage rate in the two directions inconsistent, which leads to serious warping problems in the product

Method used

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  • Reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and preparation method thereof
  • Reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and preparation method thereof
  • Reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of carbon black masterbatch

[0052] Take 50 parts of high fluidity polyphenylene sulfide, 50 parts of carbon black CABOT 2014N, 10100.1 parts of antioxidant, 0.2 part of antioxidant 168, and 0.7 part of silicone powder by weight, and mix the above materials in a high-speed mixer Evenly, the mixed mixture is added to the extruder through the main feeding port, followed by extrusion, strand drawing, water cooling and pelletizing machine granulation processes, and finally dried to obtain carbon black master batches, wherein the processing temperature is determined by Zone 1 to zone 9 are 200°C, 260°C, 280°C, 280°C, 290°C, 290°C, 290°C, 280°C, 270°C respectively, the speed is 300r / min, and the feeding speed is 20r / min;

[0053] (2) Preparation of reinforced polyphenylene sulfide composites

[0054] Weigh by weight 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 5.0 part of compatibilizer POE-g-GMA, 0.3 part of lubricant PETS, 0.5 part of silicon...

Embodiment 2

[0061] Weigh 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 5.0 part of compatibilizer POE-g-GMA, 0.3 part of lubricant PETS, 0.5 part of silicone powder, 0.5 part of flow promoter and Example 1 3 parts of the carbon black masterbatch prepared in the above method, after being dispersed and mixed by a high-speed mixer, 40 parts of the mixed above-mentioned mixture and high-fluidity polyphenylene sulfide resin were added into the extruder from the main feeding port through the corresponding weight loss weighing scale. Getting out of the plane. At the same time, 30 parts of chopped glass fibers were weighed by weight loss and added to the extruder through the 1# side feed port of the plasticizing section located in the fourth temperature zone, and 20 parts of ground glass fibers and 10 parts of hollow glass beads were passed through The 2# side feed port of the plasticizing section located in the fifth temperature zone is fed into the extruder, followed by extrusion, ...

Embodiment 3

[0067] Weigh 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 5.0 part of compatibilizer POE-g-GMA, 0.3 part of lubricant PETS, 0.5 part of silicone powder, 0.5 part of flow promoter and Example 1 3 parts of the carbon black masterbatch prepared in the above method, after being dispersed and mixed by a high-speed mixer, 45 parts of the mixed above-mentioned mixture and high-fluidity polyphenylene sulfide resin were added into the extruder from the main feeding port through the corresponding weight loss weighing scale. Getting out of the plane. At the same time, 40 parts of chopped glass fiber was weighed by weight loss and added to the extruder through the 1# side feed port of the plasticizing section located in the fourth temperature zone, and 10 parts of ground glass fiber and 5 parts of hollow glass microspheres were passed through The 2# side feed port of the plasticizing section located in the fifth temperature zone is fed into the extruder, followed by extrusio...

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Abstract

The invention relates to a reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content, and a preparation method of the reinforced polyphenylene sulfide composite material, and belongs to the technical field of polyphenylene sulfide composite materials. The reinforced polyphenylene sulfide composite material provided by the invention comprises the following raw materials in parts by mass: 20-70 parts of high-fluidity polyphenylene sulfide resin, 30-50 parts of chopped glass fiber, 0.1-20 parts of ground glass fiber, 0.1-10 parts of hollow glass micro-beads, 0.1-5 parts of carbon black master batch, 0.2-1.0 part of an antioxidant, 0.2-1.0 part of a lubricant, 0.3-10.0 parts of a compatilizer, and 0.1-1.0 part of a flow promoter. According to the invention, the reinforced polyphenylene sulfide composite material with low floating fiber, low warping and high glass fiber content is smooth and flat in surface, low in floating fiber, free of obvious warping, high in glass fiber content and excellent in mechanical property; and the invention also provides a preparation method which is simple and easy to implement and reduces the production cost.

Description

technical field [0001] The invention relates to a reinforced polyphenylene sulfide composite material with low floating fiber, low warpage and high glass fiber content and a preparation method thereof, belonging to the technical field of polyphenylene sulfide composite materials. Background technique [0002] Polyphenylene sulfide (PPS) is a special engineering plastic with excellent comprehensive properties. It has the characteristics of high temperature resistance, radiation resistance, ablation resistance, high modulus, high dimensional stability and flame retardancy. It is widely used in automobiles, electronic appliances, etc. It is the largest variety of special engineering plastics in the fields of aerospace, aerospace and chemical industry, and is known as "the sixth largest engineering plastics in the world". However, polyphenylene sulfide also has disadvantages such as low impact strength and poor toughness. The mechanical properties of pure polyphenylene sulfide r...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L83/04C08L51/06C08K13/04C08K7/14C08K7/28C08K3/04C08K5/134C08K5/526C08K5/103C08J5/04B29B9/06B29B9/14B29B9/16B29C48/00B29C48/285
CPCC08J5/043B29B9/06B29B9/14B29B9/16B29C48/023B29C48/297C08J2381/02C08J2483/04C08J2451/06C08K13/04C08K7/14C08K7/28C08K3/04C08K5/1345C08K5/526C08K5/103C08K2201/003B29K2081/04
Inventor 黄森彪王敏廖广明
Owner FUHAI (DONGYING) ADVANCED MATERIAL TECH CO LTD
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