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Polyphenylene sulfide composite material, preparation method and molding method thereof

A technology of polyphenylene sulfide and composite materials, which is applied in the field of polyphenylene sulfide composite materials and its preparation, can solve problems such as labor consumption and time-consuming annealing process, and achieve the goals of reducing production costs, improving market competitiveness, and speeding up the cycle Effect

Inactive Publication Date: 2013-07-31
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for parts made of PPS that are produced and in high demand, the annealing process is time-consuming and labor-intensive, and it will also cause problems such as shrinkage after annealing

Method used

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  • Polyphenylene sulfide composite material, preparation method and molding method thereof
  • Polyphenylene sulfide composite material, preparation method and molding method thereof
  • Polyphenylene sulfide composite material, preparation method and molding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Accurately weigh the pre-dried polyphenylene sulfide and polyamide, antioxidant, lubricant and coupling agent according to the ratio of the components shown in Example 1 shown in the following table 1, wherein the polyamide is PA66 , the antioxidant is a mixture of Thanox1098 and Thanox168, the coupling agent is KH560, and the lubricant is silicone powder GM-100. Then stir in a high-speed mixer at a speed of 700rpm / min for 3 minutes to mix the components evenly, and then add them to the main feeding port of the twin-screw extruder; add the glass fiber to the extruder from the side feeding port of the twin-screw extruder In the discharge machine, polyphenylene sulfide composite material pellets are obtained through melt blending, extrusion, cooling and granulation. The temperature of the twin-screw extruder is set at 280-295°C, the speed of the main engine is 400rpm / min, and the length-to-diameter ratio of the screw is 40:1.

Embodiment 2

[0063] According to the ratio of the components shown in Example 2 shown in Table 1 below, accurately weigh the pre-dried polyphenylene sulfide and polyamide, antioxidant, lubricant and coupling agent, wherein polyamide is resistant to High-temperature nylon PA6T, the antioxidant is a mixture of Thanox1098 and Thanox168, the coupling agent is KH560, and the lubricant is silicone powder GM-100. Then stir in a high-speed mixer at a speed of 700rpm / min for 3 minutes to mix the components evenly, and then add them to the main feeding port of the twin-screw extruder; add the glass fiber to the extruder from the side feeding port of the twin-screw extruder In the discharge machine, polyphenylene sulfide composite material pellets are obtained through melt blending, extrusion, cooling and granulation. The temperature of the twin-screw extruder is set at 285-300°C, the speed of the main engine is 400rpm / min, and the length-to-diameter ratio of the screw is 40:1.

Embodiment 3

[0065] Accurately weigh the pre-dried polyphenylene sulfide and polyamide, antioxidant, lubricant, nucleating agent and coupling agent according to the ratio of the components shown in Example 3 shown in Table 1 below, wherein, The polyamide is high temperature resistant nylon PA6T, the antioxidant is a mixture of Thanox1098 and Thanox168, the nucleating agent is nano-scale silicon dioxide, the coupling agent is KH560, and the lubricant is silicone powder GM-100. Then stir in a high-speed mixer at a speed of 700rpm / min for 3 minutes to mix the components evenly, and then add them to the main feeding port of the twin-screw extruder; add the glass fiber to the extruder from the side feeding port of the twin-screw extruder In the discharge machine, polyphenylene sulfide composite material pellets are obtained through melt blending, extrusion, cooling and granulation. The temperature of the twin-screw extruder is set at 285-305°C, the speed of the main engine is 400rpm / min, and th...

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Abstract

The present invention discloses a polyphenylene sulfide composite material, a preparation method and a molding method thereof. The polyphenylene sulfide composite material comprises the following components, by weight, 21-62% of polyphenylene sulfide, 1-8% of polyamide, 34-65% of an inorganic reinforcement material, 0.05-2% of an antioxidant, and 0.05-4% of a processing additive. The present invention further discloses a preparation method for the polyphenylene sulfide composite material, wherein the preparation method comprises: placing polyphenylene sulfide and polyamide into a blast drying box to dry, placing the pre-dried polyphenylene sulfide, the pre-dried polyamide, an antioxidant and a processing additive into a high speed mixer to uniformly mix and stir to obtain a premix, feeding the premix from a main feeding port, feeding an inorganic reinforcement material from a side feeding port, and carrying out melt extrusion, cooling, and pelletizing with a twin-screw extruder. The present invention further discloses a molding method for the polyphenylene sulfide composite material, wherein the molding method comprises: placing the polyphenylene sulfide composite material in a blast dryer to dry, and then carrying out injection molding to obtain the finished product. The composite material has high mechanical property, and can be used for rapid injection molding. The molding method has a characteristic of annealing eliminating so as to save processes.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a polyphenylene sulfide composite material and a preparation method and a molding method thereof. Background technique [0002] Polyphenylene sulfide (hereinafter referred to as PPS) resin has excellent thermal stability, chemical corrosion resistance, flame retardancy, dimensional stability and other characteristics, and at the same time has good fluidity and is easy to be processed by injection molding. It is widely used in various electronic, electrical and automotive parts . [0003] Because the main molecular chain of PPS contains a large number of benzene ring structures, compared with other engineering plastics, PPS resin has good rigidity and poor impact resistance. At the same time, for some fields with extremely harsh application conditions, exploring and researching PPS composite materials with better comprehensive performance has always been the goal pursue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L77/00C08L77/02C08L77/06C08K7/14C08K3/34C08K7/08C08K3/36B29C45/76
Inventor 杜晓华黄志杰张鑫
Owner CGN JUNER NEW MATERIALS
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