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Calcium sulfate whisker modified polystyrene composite material, and preparation method thereof.

A technology of calcium sulfate whiskers and polystyrene, applied in the field of polystyrene composite materials and their preparation, can solve problems such as insufficient toughness, and achieve good impact resistance and heat resistance.

Active Publication Date: 2011-11-09
XIANGFU NEW BUILDING MATERIAL HUNAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the lack of toughness of existing polystyrene materials, provide a calcium sulfate whisker modified polystyrene composite material with good impact resistance and heat resistance and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The calcium sulfate whisker modified polystyrene composite material in this example is made of the following raw materials in parts by weight: 100 parts of polystyrene (PS), 10 parts of calcium sulfate whisker, styrene-butadiene block copolymer (SBS) 20 parts, antioxidant 1010 0.1 part, zinc stearate 0.5 part, titanate coupling agent 1 part.

[0016] Preparation:

[0017] (1) Add calcium sulfate whiskers and titanate coupling agent into a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 20 and an average diameter of 2 ;

[0018] (2) Add the polystyrene, styrene-butadiene block copolymer, antioxidant 1010, and zinc stearate into a high-speed mixer, and mix for 5 minutes at 30°C to obtain polystyrene, styrene - a mixture of butadiene block copolymer, antioxidant 1010, zinc stearate and modified calcium sulfate whiskers;

[0019] (3) The mixture obtained in step (2) was extrud...

Embodiment 2

[0022] The calcium sulfate whisker modified polystyrene composite material in this example is made of the following raw materials in parts by weight: 100 parts of polystyrene (PS), 15 parts of calcium sulfate whisker, styrene-butadiene block copolymer (SBS) 20 parts, antioxidant 1010 0.1 part, zinc stearate 0.5 part, titanate coupling agent 2 parts.

[0023] Preparation:

[0024] (1) Add calcium sulfate whiskers and titanate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 22 and an average diameter of 1.8 ;

[0025] (2) Add the polystyrene, styrene-butadiene block copolymer, antioxidant 1010, and zinc stearate into a high-speed mixer, and mix for 5 minutes at 30°C to obtain polystyrene, styrene - a mixture of butadiene block copolymer, antioxidant 1010, zinc stearate and modified calcium sulfate whiskers;

[0026] (3) The mixture obtained in step (2) was extru...

Embodiment 3

[0029] The calcium sulfate whisker modified polystyrene composite material in this example is made of the following raw materials in parts by weight: 100 parts of polystyrene (PS), 20 parts of calcium sulfate whisker, styrene-butadiene block copolymer (SBS) 10 parts, antioxidant 1010 0.1 part, zinc stearate 0.5 part, titanate coupling agent 1 part.

[0030] Preparation:

[0031] (1) Add calcium sulfate whiskers and titanate coupling agent to a high-speed mixer and mix for 10 minutes to obtain modified calcium sulfate whiskers; modified calcium sulfate whiskers have an aspect ratio of 25 and an average diameter of 1 ;

[0032] (2) Add the polystyrene, styrene-butadiene block copolymer, antioxidant 1010, and zinc stearate into a high-speed mixer, and mix for 5 minutes at 30°C to obtain polystyrene, styrene - a mixture of butadiene block copolymer, antioxidant 1010, zinc stearate and modified calcium sulfate whiskers;

[0033] (3) The mixture obtained in step (2) was extruded...

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Abstract

The invention relates to a calcium sulfate whisker modified polystyrene composite material, and a preparation method thereof. The calcium sulfate whisker modified polystyrene composite material is prepared from the raw materials of, by weight: 100 parts of polystyrene, 10 to 40 parts of calcium sulfate whisker, 10 to 20 parts of styrene-butadiene block copolymer, 0.1 to 0.3 parts of anti-oxidant 1010, 0.1 to 1 parts of zinc stearate, and 1 to 3 parts of titanate coupling agent. The preparation method comprises the steps that: calcium sulfate whisker and titanate coupling agent are added into a high-speed mixer, and are mixed for 5 to 10 min; rest raw materials are added to the obtained modified calcium sulfate whisker, and the mixture is mixed for 5 to 10 min in the high-speed mixer; the obtained mixture is extruded and granulated by a double-screw extruder. The calcium sulfate whisker modified polystyrene composite material has good impact resistance and heat resistance. Therefore, the material is suitable to be applied in the manufacturing of electric appliance housings with strict requirements of impact resistance and heat resistance.

Description

technical field [0001] The invention relates to a polystyrene composite material and a preparation method thereof, in particular to a calcium sulfate whisker modified polystyrene composite material and a preparation method thereof. Background technique [0002] Polystyrene (PS) has excellent dielectric properties and electrical insulation properties. As a plastic, polystyrene is cheap, has good moldability, high transparency, easy coloring, and great rigidity, making it widely used. However, polystyrene has high brittleness, poor heat resistance, and poor solvent resistance, which limit its application in some places. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the lack of toughness of existing polystyrene materials, and provide a calcium sulfate whisker-modified polystyrene composite material with good impact resistance and heat resistance and a preparation method thereof. [0004] The technical scheme th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L53/02C08K13/06C08K7/08C08K3/30C08K5/098B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
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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