High-strength and high-toughness polyphenylene sulfide composite material and preparation method thereof

A technology of polyphenylene sulfide and composite materials, which is applied in the field of polymer materials, can solve the problems of limited toughening effect of composite materials, low toughness of polyphenylene sulfide materials, and improved toughening effect, etc., to achieve easy-to-use promotion and improve interface Adhesion and interfacial tension reduction effects

Inactive Publication Date: 2017-05-10
常州市法沃森塑胶科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the toughness of cross-linked PPS is worse than that of linear PPS, the toughening effect of the prepared composite material is limited, and the color of cross-linked PPS is dark brown, and its application is limited
[0005] Chinese patent CN 104072991A uses high strength nylon (PA) and polyphenylene sulfide to prepare PPS / PA alloy material. By adding compatibilizer and isocyanate chemical treatment agent, the impact strength of alloy material is improved, but it does not involve glass fiber reinforced modification
[0006] Chinese patent CN 103525088A prepared a glass fiber reinforced PPO / PA alloy material by adding a compatibilizer, but the toughening effect still needs to be improved
The polyphenylene sulfide material has a low water absorption rate, and changes in ambient temperature and humidity have little effect on its performance. It has the basis for preparing frame tent brackets and sheaths as raw materials, but the low toughness of the polyphenylene sulfide material must be solved. Weakness of poor cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] A method for preparing a high-strength and high-toughness polyphenylene sulfide composite material, comprising the following steps:.

[0057] (1) Dry the polyphenylene sulfide resin at 120~130°C for 2~3 hours;

[0058] (2) Add the remaining components except glass fiber into the high-speed mixer for dispersion and mixing;

[0059] (3) Take out the mixture in the previous step and dry it at 110~120°C for 1~2 hours;

[0060] (4) Add the dried polyphenylene sulfide resin and the mixture dried in the previous step into the twin-screw extruder, and introduce the glass fiber into the extruder through the fiberizing port located in the middle of the extruder for mixing;

[0061] (5) Melt extrusion, granulation, and finally obtain high-strength and high-toughness polyphenylene sulfide composite materials.

[0062] Among them, the material stirring speed of the high-speed mixer is 300-500 rpm, and the mixing time is 3-5 minutes.

[0063] The preparation of high-strength and h...

Embodiment 1

[0074] Example 1, a high-strength and high-toughness polyphenylene sulfide composite material, including the following raw materials and test parameters in Table 4 according to the weight ratio

[0075] components weight(%) polyphenylene sulfide resin 50 Super Tough Nylon-ST801 5 Compatibilizer-SMA700 5 Glass fiber ER13-2000-988A 20 Glass fiber ER17-2000-988A 20 Antioxidant 1010 0.2 Light stabilizer UV622 0.2 Lubricant - Silicone 0.2 physical properties performance parameter Notched Izod impact strength (KJ / m2) 13.8 Tensile strength (MPa) 192 Bending strength (MPa) 255 Flexural modulus (MPa) 12500

Embodiment 2

[0076] Example 2, a high-strength and high-toughness polyphenylene sulfide composite material, including the following raw materials and test parameters in Table 5 according to the weight ratio

[0077] components weight(%) polyphenylene sulfide resin 45 Super Tough Nylon-ST801 10 Compatibilizer-SMA700 5 Glass fiber ER13-2000-988A 20 Glass fiber ER17-2000-988A 20 Antioxidant 1010 0.2 Light stabilizer UV622 0.2 Lubricant - Silicone 0.2 physical properties performance parameter Notched Izod impact strength (KJ / m2) 17.8 Tensile strength (MPa) 187 Bending strength (MPa) 248 Flexural modulus (MPa) 12100

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Abstract

The invention relates to a high-strength and high-toughness polyphenylene sulfide composite material and a preparation method thereof. The composite material is prepared from the following raw materials in percentages by weight: 5 to 50% of polyphenylene sulfide resin, 5 to 50% of super-toughened nylon, 5 to 20% of a compatibilizing agent, 30 to 45% of glass fiber, 0 to 1% of an antioxidant, 0 to 1% of a light stabilizer and 0 to 1% of a lubricant. The preparation method for the polyphenylene sulfide composite material comprises the following steps: adding all components except the glass fiber into a high-speed mixer, carrying out dispersion mixing, then adding the obtained mixture into a double screw extruder, introducing the glass fiber into an extruder from a fiber inlet of the extruder, and carrying out mixing granulation so as to obtain the polyphenylene sulfide composite material. The polyphenylene sulfide composite material prepared by using the method provided by the invention has high strength, high toughness and extensive application range, and is especially applicable to preparation of bottom poles and sheaths of frame tent supports.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength and high-toughness polyphenylene sulfide composite material and a preparation method thereof. The polyphenylene sulfide composite material is suitable for the preparation of footings and sheaths for frame tent supports. Background technique [0002] Polyphenylene sulfide (PPS) is also known as polyphenylene sulfide and polyphenylene sulfide. Its molecular structure is that benzene rings are alternately connected with sulfur atoms at the para-position, and the molecular chain has great rigidity and regularity. Phenyl sulfide is a crystalline polymer with a crystallinity of up to 70%. It has high strength, modulus, good dimensional stability, low creep, high fatigue resistance, and good flame retardancy. Low hygroscopicity, no deformation under high temperature and high humidity conditions, good resistance to solvents and chemical corrosion. Polyphenylen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L77/02C08L77/06C08L23/08C08L35/00C08L35/06C08K13/04C08K7/14
Inventor 王永志王翔颜黎明贺世霖李震
Owner 常州市法沃森塑胶科技有限公司
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