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Dynamic crosslinking polyphenylene sulfide composite material and preparation method thereof

A technology of polyphenylene sulfide and composite materials, which is applied in the field of polymers, can solve problems such as negative effects on efficiency and complicated processes, and achieve the effects of improving mechanical properties, reducing melt index, and making the technology easy to master

Inactive Publication Date: 2012-10-03
5ELEM HI TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported cross-linking methods usually require half an hour or even hundreds of hours of processing time, and the process is complicated, which has a significant negative impact on the efficiency of production and processing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In parts by weight, weigh 62 parts of polyphenylene sulfide (PPS-hb), 2 parts of trimethyl (tert-butyl peroxy) silane, 2 parts of DCP, 0.2 part of Irganox 1010, 0.2 part of Irganox 168, and Put it in a high mixer and mix it for 15 minutes, weigh 30 parts of glass fiber (ECT5303) and treat it with A151 by the above method, add it by side feeding, and carry out melt blending and extrusion in a twin-screw extruder out of granulation. The temperature of each section is 240°C in the first zone, 260°C in the second zone, 280°C in the third zone, 280°C in the fourth zone, and 280°C in the fifth zone, the residence time is 3 minutes, and the pressure is 16MPa.

Embodiment 2

[0021] In parts by weight, weigh 51 parts of polyphenylene sulfide (PPS-hb), 3 parts of trimethyl (tert-butyl peroxy) silane, 1 part of A-171, 0.2 parts of Irganox 1010, 0.2 parts of Irganox 168 , and put it in a high mixer for 15 minutes, weigh 40 parts of glass fiber (ECT5303) and use the above method to treat it with KR-TTS, then add it in the way of side feeding, and carry out in the twin-screw extruder Melt blending extrusion granulation. The temperature of each section is 240°C in the first zone, 260°C in the second zone, 280°C in the third zone, 280°C in the fourth zone, and 280°C in the fifth zone, the residence time is 3 minutes, and the pressure is 16MPa.

Embodiment 3

[0023] In parts by weight, weigh 35 parts of polyphenylene sulfide (PPS-hb), 1 part of trimethyl (tert-butyl peroxy) silane, 2 parts of di-n-butyltin dilaurate, 0.1 part of Irganox 1070, 0.1 part of Irganox 168 0.2 parts, and put it in a high mixer for 15 minutes, weigh 40 parts of glass fiber (ECT5303) and 20 parts of talc powder (SK6500P) and use the above method to treat them with A151, then use the side feeding method Adding, melt blending extrusion granulation in a twin-screw extruder. The temperature of each section is 240°C in the first zone, 260°C in the second zone, 280°C in the third zone, 280°C in the fourth zone, and 280°C in the fifth zone, the residence time is 3 minutes, and the pressure is 16MPa.

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PUM

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Abstract

The invention discloses a dynamic crosslinking polyphenylene sulfide composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 34 to 98 parts of polyphenylene sulfide, 0 to 60 parts of inorganic filler, 2 to 5 parts of crosslinking agent, and 0.1 to 0.4 part of antioxidant. Compared with the conventional method, according to the high performance polyphenylene sulfide composite material prepared by using the method disclosed by the invention, the time investment and the energy investment can be greatly saved while the effect of the conventional thermal-oxidation curing method is achieved.

Description

technical field [0001] The invention relates to the field of macromolecules, and relates to a dynamically cross-linked polyphenylene sulfide composite material and a preparation method thereof, in particular to a low-melt-index polyphenylene sulfide composite material prepared by a dynamic cross-link method. Background technique [0002] Polyphenylene sulfide (PPS) is a polymer formed by alternating connection of benzene rings and sulfur atoms. It is a high-performance special engineering plastic. PPS has the characteristics of high temperature resistance, radiation resistance, chemical corrosion resistance, self-flame retardancy, excellent mechanical properties, good dimensional stability, and outstanding wear resistance. It can be widely used in electronic appliances, automobiles, aerospace, national defense and military industries. However, due to the polycondensation process, the molecular weight of the polymer is low. On the one hand, the melt index of PPS is very high,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K13/06C08K9/06C08K9/04C08K7/14C08K3/34C08K3/30B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 沙月华姜坤黄骥
Owner 5ELEM HI TECH CORP
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