Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of polyphenylene sulfide modified composite aggregate

A technology of polyphenylene sulfide and a manufacturing method, which is applied in the application field of special polymer materials and can solve the problems of reduced tensile strength and elongation at break, low thermal conductivity and electrical resistivity, reduced impact strength and the like

Active Publication Date: 2012-08-15
德阳科吉高新材料有限责任公司
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 method of manufacturing polyphenylene sulfide (PPS) composite materials using zinc oxide whiskers and glass fibers or carbon fibers and polyphenylene sulfide (PPS) resins to blend and modify composite pellets. The purpose is to use zinc oxide 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 injection molding of polyphenylene sulfide (PPS) composite materials made of Strength and elongation at break are reduced, as is its impact strength
[0006] In the Chinese patent application number: 201110200565.0, a method of manufacturing polyphenylene sulfide composite pellets containing conductive materials is introduced, which uses carbon black or metal powder materials as the thermal or conductive medium of polyphenylene sulfide modified materials , its thermal conductivity and resistivity are relatively low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyphenylene sulfide modified composite aggregate
  • Preparation method of polyphenylene sulfide modified composite aggregate
  • Preparation method of polyphenylene sulfide modified composite aggregate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 0.1mol / mol sodium sulfide of polyphenylene sulfide resin and 4,4 dichlorodisulfone to a linear high molecular weight PPS resin with a weight average molecular weight of 35,000, respectively, and configure a 20%wt mixture in NMP solvent. The sulfide resin is treated with low-molecular polyphenylene sulfide resin, the temperature of the mixture is raised to 260°C, and kept for 30 minutes, then the temperature of the mixture is lowered to 160°C, and filtered while it is hot, and the filter cake is prepared with deionized water A mixture containing 20% ​​wt of polyphenylene sulfide resin was formed, and after repeated washing for 8 times at a temperature of 98° C., the polyphenylene sulfide resin was finally dried for use. Then, the polyphenylene sulfide resin processed by the above process is subjected to oxidative thermal crosslinking treatment, and the obtained polyphenylene sulfide crosslinked resin is added with heat stabilizer, anti-corrosion inhibitor, nitrogen-do...

Embodiment 2

[0023] Add 0.1mol / mol sodium sulfide of polyphenylene sulfide resin and 4,4 dichlorodisulfone to a linear high molecular weight PPS resin with a weight average molecular weight of 38,900, respectively, and configure a 30%wt mixture in NMP solvent. The sulfide resin is treated with low-molecular polyphenylene sulfide resin, the temperature of the mixture is raised to 260°C, and kept for 30 minutes, then the temperature of the mixture is lowered to 160°C, and filtered while it is hot, and the filter cake is prepared with deionized water A mixture containing 30% wt of polyphenylene sulfide resin was formed, and after repeated washing for 8 times at a temperature of 98° C., the polyphenylene sulfide resin was finally dried for use. Then, the polyphenylene sulfide resin processed by the above process is subjected to oxidative thermal cross-linking treatment, and the obtained polyphenylene sulfide cross-linked resin is added with heat stabilizer, anti-corrosion inhibitor, oligolayer ...

Embodiment 3

[0026]Add sodium sulfide and 4,4 dichlorodisulfone of 0.1mol / mol polyphenylene sulfide resin respectively in the linear high molecular weight PPS resin of weight average molecular weight 40,000, and configure 20-30%wt mixture in NMP solvent, to The polyphenylene sulfide resin is treated with low-molecular polyphenylene sulfide resin, the temperature of the mixture is raised to 260°C, and kept for 30 minutes, then the temperature of the mixture is lowered to 160°C, and filtered while it is hot. The water is prepared into a mixture containing 20-30% wt of the polyphenylene sulfide resin, and after repeated washing for 8 times at a temperature of 98° C., the polyphenylene sulfide resin is finally dried for use. Then, the polyphenylene sulfide resin processed by the above process is subjected to oxidative thermal cross-linking treatment, and the obtained polyphenylene sulfide cross-linked resin is added with heat stabilizer, anti-corrosion inhibitor, multi-layer graphene powder, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Impact strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a polyphenylene sulfide modified composite aggregate. The preparation method comprises the following steps of: carrying out low molecular material pretreatment and oxidation crosslinking treatment on polyphenylene sulfide resin, adding heat stabilizer, corrosion resistant inhibitor, graphene powder, antioxidant and SBS (styrene-butadiene-styrene copolymer) filler into the obtained polyphenylene sulfide crosslinking resin, and fully mixing in a high-speed mixer to obtain a polyphenylene sulfide resin premix; mixing the polyphenylene sulfide resin premix and 40-60% wt of surface-treated glass fiber through a double-screw extruder, extrusion molding, cooling and carrying out grain-sized dicing to form finished product modified composite aggregate. The amount of volatile corrosion gas released during process accounts for 0.01-0.03% wt of the polyphenylene sulfide crosslinking resin. The modified composite aggregate obtained by the method provided by the invention has high thermal denaturation stability and tensile strength, low corrosion rate on metal, very little volatile gas released and very strong oxidation resistance, and can be widely applied to the fields of electronics, machinery, chemical industry, petroleum, military industry and space fight and aviation.

Description

Technical field [0001] The invention belongs to the application field of special polymer materials Background technique [0002] Polyphenylene sulfide (PPS) has excellent thermal stability, has excellent high temperature resistance, and has a melting point of 285°C, which is higher than other special engineering plastics currently industrially produced. PPS modified composite pellets have excellent injection processing performance and can be processed PPS composite products of various specifications and 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 i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L81/02C08L53/02C08K13/06C08K9/06C08K7/14C08K3/30C08K5/41C08K3/04C08K3/22C08J3/24C08J3/20
Inventor 陈逊
Owner 德阳科吉高新材料有限责任公司