Soft-touch HIPS composition and preparation method thereof

A composition and soft-touch technology, which is applied in the field of soft-touch HIPS composition and its preparation, can solve the problems of poor touch on the surface of materials, achieve the effects of reducing hardness, broad market application prospects, and improving impact strength

Active Publication Date: 2021-03-12
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor surface touch of existing HIPS modified materials, and to provide a soft-touch HIPS composition and a preparation method thereof, which can significantly reduce the modulus and strength of the material without significantly reducing The friction coefficient of the surface of the material improves the tactility of the material, and the antifouling performance of the material is also improved to a certain extent

Method used

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  • Soft-touch HIPS composition and preparation method thereof
  • Soft-touch HIPS composition and preparation method thereof
  • Soft-touch HIPS composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This example is the preparation of tactile-modified masterbatch. The ratio of raw materials is shown in Table 1. The specific preparation method is as follows:

[0046] A1, take each raw material component according to the parts by weight of Table 1;

[0047] B1. Fully stir each component in A1, and mix in a mixer for 20-40 minutes to obtain a mixture;

[0048] C1, the mixture obtained in step B1 is entered from the main feed of the twin-screw extruder and melted and extruded, then cooled, dried, and pelletized to obtain the combined masterbatch;

[0049] Among them, the twin-screw extruder is a twin-screw extruder rotating in the same direction, the length-to-diameter ratio of the screw is 35, and the screw barrel is provided with a vacuum exhaust device and a temperature control device; the temperature of the feed section of the twin-screw extruder is 200°C, the temperature of the plasticizing section is 190°C, the temperature of the homogenization section is 200°C; ...

Embodiment 2

[0055] This embodiment provides a soft-touch HIPS composition and a preparation method thereof, and the specific steps are as follows:

[0056] (1) Take each component according to the weight ratio in Table 2, wherein the auxiliary agent is an antioxidant and a lubricant with a weight ratio of 1:1;

[0057] (2) each component that weighs is mixed in high-speed mixer and obtains mixture after 20min;

[0058]The above-mentioned mixed mixture is entered from the main feed of the twin-screw extruder, and the sample is obtained through melt extrusion, cooling, drying, and pelletizing; wherein, the twin-screw extruder is a co-rotating twin-screw extruder, The length-to-diameter ratio of the screw is 40, and the screw barrel is equipped with a vacuum exhaust device and a temperature control device; the temperature of the feed section of the twin-screw extruder is 200°C, the temperature of the plasticizing section is 190°C, and the temperature of the homogenization section is 200°C; ...

Embodiment 3

[0060] This example provides a soft-touch HIPS composition and its preparation method. The weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of Example 1.

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Abstract

The invention relates to a soft-touch HIPS (high impact polystyrene) composition and a preparation method thereof. The composition comprises, by weight, 50-90 parts of HIPS resin, 10-50 parts of combined masterbatch and 0.5-2 parts of other auxiliaries; the combined masterbatch comprises, by weight, 40-80 parts of TPU, 10-50 parts of ethylene vinyl acetate copolymer 1(EVA-1), 1-10 parts of ethylene vinyl acetate copolymer 2 (EVA-2) and 0.1-1 part of other auxiliaries. Compared with the prior art, by preparing the master batch with excellent touch feeling, the friction resistance of the surfaceof the HIPS is greatly reduced, the surface hardness of the material is reduced to a certain extent, and the surface is lubricated and has special soft touch feeling, so that the master batch can beapplied to various appearance parts and handle parts, and has a wide market application prospect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a soft-touch HIPS composition and a preparation method thereof. Background technique [0002] High-impact polystyrene (HIPS) is a thermoplastic polymer with a wide range of uses. It is a two-phase system consisting of a rubber phase and a continuous polystyrene phase. It has a wide range of impact properties and processability. It has a wide range of applications, such as for automobiles, instruments, electrical appliances, toys, disposable products and other markets. HIPS not only has easy processing, good performance, relatively stable size, but also has a low price. At present, with the improvement of people's living standards and the continuous upgrading of consumer electronics products, consumers are paying more and more attention to the good touch of the surface of automobiles, home appliances, stationery and other parts. Soft touch has gradually become one of the importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L75/06C08L23/08C08K5/098C08J3/22
CPCC08L51/04C08J3/226C08L2205/035C08L2205/03C08L2205/025C08J2351/04C08J2423/08C08J2475/06C08L75/06C08L23/0853C08K5/098
Inventor 于云安查超周霆辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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