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Styrene composition as well as application and preparation method thereof

A technology of styrene and composition, applied in the field of styrene composition and its application and preparation, can solve the problems of decreased product fluidity, easy occurrence of tiger skin pattern, deterioration of product appearance, etc., and achieves comprehensive performance improvement, improved appearance, The effect of improving processability

Pending Publication Date: 2021-05-04
CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the wide source of PS resin, low cost, stable size, and easy processing, it is mostly used in the production and processing of some large and complex structural products. In practical applications, in order to further broaden the application range of PS modified HIPS materials, especially to meet some In the harsh environment of high and low temperature, the impact strength of the material, especially the low temperature toughness, will be improved by further increasing the content of polybutadiene rubber. However, while improving the low temperature toughness, the fluidity of the product will decrease due to the addition of too much rubber. The appearance of the product is poor, and appearance problems such as tiger skin patterns are prone to appear during the molding process; at the same time, the strength is reduced and the heat resistance is reduced.
At present, in order to improve the rigidity, it is enhanced by adding inorganic substances with a sheet structure, but this will further reduce the fluidity and deteriorate the appearance of the product, and the efficiency of increasing the heat distortion temperature by adding inorganic fillers and heat-resistant agents is low, which leads to product Greatly reduced toughness
It can be seen that the performance of the existing HIPS polymer materials is still insufficient, and it is necessary to prepare a new material that can replace HIPS

Method used

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  • Styrene composition as well as application and preparation method thereof
  • Styrene composition as well as application and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The styrene composition of this embodiment is composed of the following raw materials in weight percentage, polyphenylene ether resin 20%; polystyrene resin 50%; toughening agent 25%; fluidity modifier 3.5%; inorganic filler 10%; Antioxidant 0.4%; lubricant 0.4%.

[0039] The preparation method of the above-mentioned compound is as follows: Weigh the raw materials of the formula amount, first stir the polyphenylene ether resin, polystyrene resin and toughening agent in the mixer, and after fully mixing, put into the fluidity improving agent of the formula amount. agent, inorganic filler, antioxidant and lubricant, and then fully mixed to obtain a compound, and then the obtained compound is melt-blended and extruded in an extrusion device, and then the extruded compound is cooled and cooled. The final colloidal particles were homogenized in a homogenizing tank to obtain a styrene composition. Preferably, the extruding device is a twin-screw extruder, the feeding port te...

Embodiment 2

[0041] The styrene composition of this embodiment is composed of the following raw materials in weight percentage, polyphenylene ether resin 5%; polystyrene resin 40%; toughening agent 10%; fluidity modifier 1%; inorganic filler 0; Antioxidant 0.1%; lubricant 0.1%.

[0042] The preparation method of the above-mentioned compound is as follows: Weigh the raw materials of the formula amount, first stir the polyphenylene ether resin, polystyrene resin and toughening agent in the mixer, and after fully mixing, put into the fluidity improving agent of the formula amount. agent, inorganic filler, antioxidant and lubricant, and then fully mixed to obtain a compound, and then the obtained compound is melt-blended and extruded in an extrusion device, and then the extruded compound is cooled and cooled. The final colloidal particles were homogenized in a homogenizing tank to obtain a styrene composition. Preferably, the extruding device is a twin-screw extruder, the feeding port tempera...

Embodiment 3

[0044]The styrene composition of this embodiment is composed of the following weight percentages: 30% polyphenylene ether resin; 70% polystyrene resin; 30% toughening agent; 5% fluidity modifier; 15% inorganic filler; Antioxidant 0.5%; lubricant 0.5%.

[0045] The preparation method of the above-mentioned compound is as follows: Weigh the raw materials of the formula amount, first stir the polyphenylene ether resin, polystyrene resin and toughening agent in the mixer, and after fully mixing, put into the fluidity improving agent of the formula amount. agent, inorganic filler, antioxidant and lubricant, and then fully mixed to obtain a compound, and then the obtained compound is melt-blended and extruded in an extrusion device, and then the extruded compound is cooled and cooled. The final colloidal particles were homogenized in a homogenizing tank to obtain a styrene composition. Preferably, the extruding device is a twin-screw extruder, the feeding port temperature of the tw...

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Abstract

The invention relates to the technical field of high-molecular polymers, in particular to a styrene composition and a preparation method thereof, and the styrene composition comprises the following raw materials in parts by weight: 5-30% of polyphenyl ether resin; 40%-70% of polystyrene resin; 10%-30% of a toughening agent; 1%-5% of a fluidity modifier; 0-15% of an inorganic filler; 0.1%-0.5% of an antioxidant; and 0.1%-0.5% of a lubricant. The styrene composition has the advantages of being good in appearance, ultrahigh in fluidity, good in low-temperature toughness and high in thermal deformation temperature, and the preparation method of the styrene composition has the advantage of being easy to operate.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a styrene composition and its application and preparation method. Background technique [0002] High-impact polystyrene (HIPS) resin is a polystyrene product with excellent impact resistance produced by adding 2% to 15% styrene-butadiene or butadiene rubber particles to polystyrene (PS) resin. Compared with PS resin, HIPS resin has higher toughness, and at the same time retains the characteristics of easy molding and processing of PS resin. It can be used for molding methods such as injection molding, extrusion molding, and vacuum suction molding. It is widely used in household appliances, equipment, electric products, Furniture, household appliances, telecommunications, electronics, computers, disposables, medicine, packaging, etc. [0003] Due to the wide source of PS resin, low cost, stable size, and easy processing, it is mostly used in the production and processing of some...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L71/12C08L53/02C08L83/04C08L91/06C08K3/34C08K13/02C08K5/20C08K5/098
CPCC08L25/06C08L2205/035C08L71/12C08L53/02C08L83/04C08L91/06C08K3/34C08K13/02C08K5/20C08K5/098
Inventor 刘学亮王林付锦锋王亮郭少华官焕祥黄宝奎杨金山
Owner CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD