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Calcium sulfate whisker modified polyphenylene sulfide composite material and preparation method thereof

A technology of calcium sulfate whiskers and polyphenylene sulfide, applied in the field of polyphenylene sulfide composite materials and its preparation process, can solve the problems of reducing the thermal physical properties of PPS and limiting the application of PPS, and achieve excellent thermal physical properties and low cost , Good insulation and thermal conductivity

Active Publication Date: 2013-06-05
XIANGFU NEW BUILDING MATERIAL HUNAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology improves the thermal conductivity of PPS, but reduces the thermophysical properties of PPS, which limits the application of PPS

Method used

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  • Calcium sulfate whisker modified polyphenylene sulfide composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The calcium sulfate whisker modified polyphenylene sulfide composite material of this embodiment is made of the following parts by weight: 48.5 parts of polyphenylene sulfide (PPS), 10 parts of calcium sulfate whiskers with a diameter of 10-20 μm, and a diameter of 10 parts. -300μm thermal conductive filler 35 parts of magnesium oxide, 5 parts of silane coupling agent, 0.5 parts of antioxidant 1010, 1 part of lubricant calcium stearate.

[0024] Preparation:

[0025] (1) Pretreatment of thermally conductive filler magnesium oxide: 35 parts by weight of thermally conductive filler magnesium oxide with a diameter of 10-300μm are added to the high-speed mixer, and then 3 parts by weight of silane coupling agent are added, and mixed for 10 minutes;

[0026] (2) Pretreatment of calcium sulfate whiskers: add 10 parts by weight of calcium sulfate whiskers with a diameter of 10-20μm and 2 parts by weight of silane coupling agent to a high-speed mixer and mix for 10 minutes to obtain m...

Embodiment 2

[0033] The calcium sulfate whisker modified polyphenylene sulfide composite material of this embodiment is made of the following parts by weight: 43.5 parts of polyphenylene sulfide (PPS), 15 parts of calcium sulfate whiskers with a diameter of 10-20 μm, and a diameter of 10 -35 parts of 300μm thermally conductive filler alumina, 5 parts of titanate coupling agent, 0.5 parts of antioxidant 1010, 1 part of lubricant zinc stearate.

[0034] Preparation:

[0035] (1) Pretreatment of thermally conductive filler alumina: add 35 parts by weight of thermally conductive filler alumina with a diameter of 10-300 μm to the high-speed mixer, then add 3 parts by weight of titanate coupling agent, and mix for 10 minutes;

[0036] (2) Pretreatment of calcium sulfate whiskers: 15 parts by weight of calcium sulfate whiskers with a diameter of 10-20μm and 2 parts by weight of titanate coupling agent are added to a high-speed mixer and mixed for 10 minutes to obtain modified sulfuric acid Calcium whis...

Embodiment 3

[0043] The calcium sulfate whisker modified polyphenylene sulfide composite material of this embodiment is made of the following parts by weight: 38.5 parts of polyphenylene sulfide (PPS), 20 parts of calcium sulfate whiskers with a diameter of 10-20 μm, and a diameter of 10 parts. -300μm thermal conductive filler 35 parts of aluminum nitride, 5 parts of aluminate coupling agent, 0.5 parts of antioxidant 1010, 1 part of lubricant calcium stearate.

[0044] Preparation:

[0045] (1) Pretreatment of thermally conductive filler aluminum nitride: add 35 parts by weight of thermally conductive filler aluminum nitride with a diameter of 10-300 μm to the high-speed mixer, then add 3 parts by weight of aluminate coupling agent, and mix for 10 minutes;

[0046] (2) Pretreatment of calcium sulfate whiskers: add 20 parts by weight of calcium sulfate whiskers with a diameter of 10-20 μm and 2 parts by weight of aluminate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modif...

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Abstract

The invention discloses a calcium sulfate whisker modified polyphenylene sulfide composite material and a preparation method thereof. The composite material comprising the following components in parts by weight: polyphenylene sulfide 35-50 parts, calcium sulfate whisker 10-20 parts, thermal conductive filler 30-40 parts, coupling agent 2-5 parts, antioxidant1010 0.2-0.5 part and lubricant 0.5-1.5 parts. The preparation method of the calcium sulfate whisker modified polyphenylene sulfide composite material comprises the steps of: pre-processing the thermal conductive filler and the calcium sulfate; adding the pre-processed thermal conductive filler, the polyphenylene sulfide, the antioxidant1010 and the lubricant into a high-speed mixer, and mixing for 5-15 min; and then adding the modified calcium sulfate whisker and mixing for 4-6 min; pelletizing the obtained mixture by extruding; and carrying out injection molding on the pellets to obtain the finished product. The calcium sulfate whisker modified polyphenylene sulfide composite material provided by the invention has the advantages of good insulation and thermal conductivity and excellent thermal physical property and is particularly applicable to electronic products and weaponry, electrical communication, electrical equipment and instruments.

Description

Technical field [0001] The invention relates to a polyphenylene sulfide composite material and a preparation process thereof, in particular to a calcium sulfate whisker modified polyphenylene sulfide composite material and a preparation process thereof. Background technique [0002] Industrial production and the development of science and technology put forward higher requirements for thermal conductivity materials. In addition to thermal conductivity, the materials are also required to have excellent comprehensive properties, such as light weight, easy processing and molding, excellent thermal fatigue performance, electrical insulation and chemical stability Good etc. Traditional thermal conductive materials such as metals and metal oxides and other non-metallic materials can no longer meet the thermal conductivity of power tubes, integrated blocks, heat pipes, integrated circuits, and copper clad laminates that are widely used in the fields of electromagnetic shielding and elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/02C08K13/06C08K9/06C08K9/04C08K3/22C08K3/28C08K3/34C08K7/08B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29C48/04
Inventor 刘珍如刘立文付桃梅杨志强宁勇鲁纪鸣
Owner XIANGFU NEW BUILDING MATERIAL HUNAN
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