Polyphenylene sulfide modified PET composition and preparation method thereof

A technology of polyphenylene sulfide and composition, which is applied in the field of polymers, can solve the problems of PET application restrictions, etc., and achieve the effects of avoiding serious performance degradation, ensuring dispersibility, and low odor characteristics

Inactive Publication Date: 2020-01-07
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although PET has many excellent properties, its application will be greatly restricted in some fields that require high odor and wear resistance.

Method used

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  • Polyphenylene sulfide modified PET composition and preparation method thereof
  • Polyphenylene sulfide modified PET composition and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0028] Preparation of odor adsorption masterbatch: 100 parts of PET, 5 parts of hydrophobic diatomaceous earth, 5 parts of hydrophobic activated carbon, 5 parts of acicular zeolite molecular sieve, 5 parts of zinc ricinoleate, 5 parts of nano silicon dioxide, stearic acid 1 part of calcium and 5 parts of melamine, mixed evenly, and then extruded and granulated in a twin-screw extruder to obtain odor-absorbing masterbatches. Among them, the temperature of the first zone of the twin-screw extruder is 190-225°C, the temperature of the second zone is 275-285°C, the temperature of the third zone is 275-290°C, the temperature of the fourth zone is 285-290°C, and the temperature of the fifth zone is 285-300 °C, the temperature of the sixth zone is 285-300 °C; the main engine speed of the twin-screw extruder is 250-500rpm.

[0029] The weight ratio of silicon nitride and silicon carbide in the compound of silicon nitride and silicon carbide is 1:19.

Embodiment 1

[0031] 70 parts of PET, 3 parts of odor absorption masterbatch, 0.1 part of silicon nitride and silicon carbide compound, 0.2 part of white oil, 0.3 part of silicone oil, 0.5 part of paraffin, 0.5 part of antioxidant 1098, 0.5 part of antioxidant Pour 168 into a high-speed mixer, stir at a high speed, mix until uniform, then add to a twin-screw extruder, add 5 parts of polyphenylene sulfide modified glass fiber from the glass fiber port, melt and extrude, and then granulate to obtain low Odor, low emission, high wear resistance PET composition.

[0032] Among them, the temperature of the first zone of the twin-screw extruder is 190°C, the temperature of the second zone is 275°C, the temperature of the third zone is 275°C, the temperature of the fourth zone is 285°C, the temperature of the fifth zone is 285°C, and the temperature of the sixth zone is 285°C; The host speed of the extruder is 250rpm.

Embodiment 2

[0034] Pour 54 parts of PET, 1 part of odor absorption masterbatch, 0.2 part of silicon nitride and silicon carbide compound, 0.2 part of silicone powder, 0.05 part of antioxidant 1098, and 0.05 part of antioxidant 168 into a high-speed mixer, Stir at high speed, mix until uniform and add to twin-screw extruder, add 30 parts of polyphenylene sulfide modified glass fiber from the glass fiber port, melt and extrude and then granulate to obtain low odor, low emission, high durability Mill the PET composition.

[0035] Among them, the temperature of the first zone of the twin-screw extruder is 225°C, the temperature of the second zone is 285°C, the temperature of the third zone is 290°C, the temperature of the fourth zone is 290°C, the temperature of the fifth zone is 300°C, and the temperature of the sixth zone is 300°C; The host speed of the extruder is 500rpm.

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Abstract

The invention discloses a polyphenylene sulfide modified PET composition and a preparation method thereof. The preparation method comprises: pouring PET, odor adsorption master batch, a silicon nitride and silicon carbide complex, a lubricant and an antioxidant into a high-speed stirrer, stirring, uniformly mixing, and adding into a double-screw extruder; and adding polyphenylene sulfide modifiedglass fiber from the glass fiber port of the extruder, carrying out melt extrusion, and granulating to obtain the polyphenylene sulfide modified PET composition. According to the invention, the glassfiber is subjected to impregnating treatment by using the special polyphenylene sulfide dispersion liquid, so that the dispersity of the glass fibers in the PET matrix is greatly improved, the wear resistance of the prepared PET is remarkably improved, and the excellent mechanical properties are maintained.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a polyphenylene sulfide modified PET composition and a preparation method thereof. Background technique [0002] The appearance of PET is milky white to light yellow. It is characterized by high toughness, shock resistance, high mechanical strength and heat resistance, good impact strength, high melting point, and good molding performance. It is widely used in manufacturing machinery, automobiles, Parts of chemical and electrical devices, such as gears, rollers, pulleys, roller shafts, impellers in pump bodies, fan blades, high-pressure sealing enclosures, valve seats, gaskets, bushings, various handles, support frames, inner layers of wire wraps wait. [0003] Although PET has many excellent properties, its application will be greatly restricted in some fields that require high odor and wear resistance. Therefore, it is necessary to further reduce its odor, friction coefficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/04C08K7/14C08K3/34C08K7/26C08K7/24C08K7/10C08K3/36C08K5/098C08K5/3492
CPCC08K2201/011C08L67/02C08K9/08C08K7/14C08K3/34C08K7/26C08K7/24C08K7/10C08K3/36C08K5/098C08K5/34922
Inventor 杨桂生吴安琪范继贤姚晨光
Owner HEFEI GENIUS NEW MATERIALS
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