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HIPS composite material as well as preparation method and application thereof

A composite material and resin technology, applied in the field of HIPS composite material and its preparation, can solve the problems of no outstanding improvement in high toughness stress cracking, decreased material dimensional stability, expensive graphene components, etc., and achieve a reduction in melt viscosity. , the effect of reducing density and light density

Active Publication Date: 2021-02-19
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no outstanding improvement research in terms of high toughness and reduced stress cracking of materials, and the high price of graphene components in materials will limit its wide-scale application and promotion
At the same time, there are too few components in the composite material to stabilize the size of the material and prevent warping, and the addition of a large proportion of crystalline material PE will easily lead to a decrease in the dimensional stability of the material
A large amount of SEBS-g-MAH components used in the patent, the presence of maleic anhydride (MAH) will have a strong odor, and the packaging products made of it will have an odor impact on the packaged objects

Method used

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  • HIPS composite material as well as preparation method and application thereof
  • HIPS composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0049] A kind of PS composite material of low density, high toughness, low stress cracking characteristics, its raw material formula is as shown in table 1, and its preparation method comprises the following steps:

[0050] The above-mentioned LDPE resin and EVA resin are frozen and pulverized, and then mixed evenly with other raw materials except the oil-extended SBS elastomer, and then fed from the main feeding port of the extruder, and the oil-extended SBS elastomer is passed through Side feeding means, side feeding into the barrel of the extruder; the raw materials are melted, extruded and granulated in the extruder to obtain PS composite materials with low density, high toughness and low stress.

[0051] The pellets were injection molded into corresponding samples for testing, and the test results are shown in Table 2.

Embodiment 1

[0060] Embodiment 1 is compared with comparative example 1 and embodiment 4 and comparative example 3, and AMS-120 can obviously improve the stress cracking situation than AMS-110, AMS-130, and the molecular weight that shows that the present invention selects for use is that the styrene of 800-1300 is low The polymer has better overall mechanical properties and stress cracking resistance of the material. In terms of processability and fluidity, AMS-120 has better balance.

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Abstract

The invention provides an HIPS composite material as well as a preparation method and application thereof. The composite material comprises the following components in parts by mass: 30-60 parts of HIPS resin, 0.5-2 part of a styrene oligomer, 10-35 parts of a HDPE resin, 10-35 parts of an LDPE resin, 2-10 parts of an EVA resin, 2-10 parts of a filler, 5-10 parts of a toughening agent, and 0.5-1.5parts of a processing aid. The PS composite material provided by the invention has the characteristics of low density, high toughness and low stress cracking.

Description

technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a HIPS composite material and its preparation method and application. Background technique [0002] Styrene (PS) and polyethylene (PE) materials are common polymers. As important varieties of general-purpose plastics, they are widely used. They are commonly used materials in the fields of home appliances, electronic appliances, and OA office equipment. Polystyrene material has the advantages of easy molding, good rigidity, and easy dyeing. However, PS material has insufficient impact toughness and poor environmental stress cracking resistance, which limits its application range. The PE material has the characteristics of low density, good toughness, excellent solvent resistance, good barrier property, and low price, but it has the disadvantages of low rigidity and poor dimensional stability. [0003] Due to the limited impact toughness of conventional PS materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L53/02C08L23/06C08L23/08
CPCC08L51/04C08L2207/062C08L2207/066C08L2205/025C08L2205/035C08L53/02C08L23/06C08L23/0853
Inventor 宋晓辉肖华明孙超正郝垠龙付锦峰杨霄云陶四平王中林
Owner TIANJIN KINGFA NEW MATERIAL
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