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Preparation method of high-toughness polyphenyl thioether alloy

A technology of polyphenylene sulfide and manufacturing method, which is applied in the field of special polymer material manufacturing, can solve the problem of reduced tensile strength and elongation at break, reduced impact strength, and reduced impact strength and resistance of polyphenylene sulfide composite materials. Tensile strength and other issues, to achieve high thermal denaturation stability, high tensile strength, low metal corrosion rate effect

Inactive Publication Date: 2012-09-05
SICHUAN DEYANG CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, a polyphenylene sulfide composite material with good processability and mechanical strength is provided. Although the burrs of the injection into parts are reduced after adding filling materials such as epoxy silane compounds, the reduction of the polyphenylene sulfide composite material is reduced. impact strength and tensile strength
[0005] Chinese patent CN: 1272124A introduces the manufacture method of the polyphenylene sulfide (PPS) composite material that adopts zinc oxide whisker and glass fiber or carbon fiber and polyphenylene sulfide (PPS) resin to carry out blending modification, and its purpose is to adopt Zinc oxide is used as a corrosion inhibitor to improve the corrosion of metals and eliminate the adverse effects on mechanical and physical properties; however, after adding zinc oxide, the tensile strength and fracture of polyphenylene sulfide (PPS) composites made of injection molding The elongation is reduced, and its impact strength is also reduced

Method used

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  • Preparation method of high-toughness polyphenyl thioether alloy
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  • Preparation method of high-toughness polyphenyl thioether alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put the linear polyphenylene sulfide resin with a weight average molecular weight of 40,000, a melt flow index of 500g / 10min and a molecular weight distribution coefficient of 2.5 into the oxidative thermal crosslinker for 2.8h for oxidative thermal crosslinking.

[0020] In a high-speed mixer, add 59.8%wt polyphenylene sulfide crosslinking resin, 0.2%wt nonyl triphenyl phosphite antioxidant, 3%wt special toughening material (AX8900) with a particle size of 35um, 2%wt carbon black After stirring for 3 hours, it was mixed into a polyphenylene sulfide compound with a uniform texture, and then mixed with 35%wt of β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (A-168) surface treatment agent After treatment, the glass fiber with a single fiber diameter of 30um is input into the twin-screw extruder, mixed and extruded by the twin-screw extruder, cooled, and pelletized to form a finished alloy, which is finally packaged, stored, and used.

[0021] The various physical propertie...

Embodiment 2

[0023] Put the linear polyphenylene sulfide resin with a weight average molecular weight of 50,000, a melt flow index of 480g / 10min and a molecular weight distribution coefficient of 2.6 into the oxidative thermal crosslinker for 2.5h for oxidative thermal crosslinking.

[0024] In a high-speed mixer, add 65.2%wt polyphenylene sulfide cross-linking resin, 0.8%wt nonyl triphenyl phosphite antioxidant, 8%wt special toughening material with a particle size of 40um, and 1%wt carbon black and stir for 2 hours , mixed into a polyphenylene sulfide compound with a uniform texture, and then treated with 25%wt of β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (A-168) surface treatment agent Glass fibers with a fiber diameter of 40um are input into a twin-screw extruder, mixed and extruded by the twin-screw extruder, cooled, and pelletized to form a finished alloy, which is finally packaged, put into storage, and used.

[0025] The various physical properties of the polyphenylene sulfide c...

Embodiment 3

[0031] Put the linear polyphenylene sulfide resin with a weight average molecular weight of 43,000, a melt flow index of 486g / 10min and a molecular weight distribution coefficient of 2.55 into an oxidative heat crosslinker for 2.6 hours of oxidative heat crosslinking.

[0032] In a high-speed mixer, add 63%wt polyphenylene sulfide crosslinking resin, 0.5%wt nonyl triphenyl phosphite antioxidant, 5%wt special toughening material (AX8900) with a particle size of 35um, and 1.5%wt carbon black After stirring for 3 hours, it was mixed into a polyphenylene sulfide compound with a uniform texture, and then mixed with 30%wt of β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane (A-168) surface treatment agent After treatment, the glass fiber with a single fiber diameter of 30um is input into the twin-screw extruder, mixed and extruded by the twin-screw extruder, cooled, and pelletized to form a finished alloy, which is finally packaged, stored, and used.

[0033] The various physical propert...

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Abstract

The invention discloses a preparation method of high-toughness polyphenyl thioether alloy. The preparation method comprises the following steps: adding an antioxidant, an ethylene-methyl acrylate-glycidyl methacrylate special ternary random copolymer toughening material and carbon black in a linear polyphenylene sulfide (PPS) resin subjected to oxidative thermal crosslinking, and then fully and evenly mixing in a high-speed mixer so as to obtain a PPS resin premix, wherein the weight percentage of PPS to glass fiber to special toughening material to carbon black to antioxidant is (59.8-65.2):(25-35):(3-8):(1-2):(0.2-0.8); and carrying out mixing, extrusion molding, cooling and chopping to obtain finished alloy. The alloy obtained by using the preparation method has the advantages of high thermal denaturation stability, high tensile strength and low metal corrosion rate, and can be widely applied to the fields of electronic appliances, machinery, chemical industry, petroleum, military industry and aerospace, especially used as an enclosure material or packaging material for all types of batteries.

Description

Technical field [0001] The invention belongs to the field of manufacturing special polymer materials. Background technique [0002] Polyphenylene sulfide (PPS) has excellent thermal stability, excellent high temperature resistance, and a melting point of 285°C, which is higher than other special engineering plastics in industrial production. PPS alloy has excellent injection processing performance and can be processed into various specifications , PPS composite products of various shapes. However, in some fields with more demanding application conditions, it is still the goal that people pursue to explore and discover PPS composite materials with better performance. [0003] Chinese patent CN: 1667044A introduces a manufacturing method of polyphenylene sulfide composite material adding aromatic phosphate ester and polyphenoxy resin, the purpose of which is to improve the heat resistance stability of the composite material and the molding material in injection molding SHI s...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08L23/08C08K9/06C08K7/14C08K3/04C08J3/24
Inventor 张勇刘彬苟梁武单彤
Owner SICHUAN DEYANG CHEM
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