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A kind of soft touch hips composition and preparation method thereof

A composition and soft-touch technology, applied in the field of soft-touch HIPS compositions and their preparation, can solve problems such as poor surface feel of materials, and achieve the effects of reducing surface hardness, widening market application prospects, and improving impact strength

Active Publication Date: 2022-07-19
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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  • A kind of soft touch hips composition and preparation method thereof
  • A kind of soft touch hips composition and preparation method thereof
  • A kind of soft touch hips composition and preparation method thereof

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Embodiment 1

[0045] The present embodiment is the preparation of tactile modified masterbatch, and its raw material ratio is shown in Table 1, and the specific preparation method is:

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

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

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

[0049] Among them, the twin-screw extruder is a co-rotating twin-screw extruder, the screw length-diameter ratio is 35, and the screw barrel is provided with a vacuum pumping device and a temperature control device; the temperature of the feeding 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; the scre...

Embodiment 2

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

[0056] (1) each component is weighed according to the weight ratio in table 2, and wherein auxiliary agent is antioxidant and lubricant that the weight ratio is 1:1;

[0057] (2) each component that is weighed is mixed in a high-speed mixer to obtain a mixture after 20min;

[0058]The above-mentioned mixed mixture is fed 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-diameter ratio of the screw is 40, and the screw barrel is equipped with a vacuum pumping device and a temperature control device; the temperature of the feeding section of the twin-screw extruder is 200 °C, the temperature of the plasticizing section is 190 °C, and the temperature of the homogenization sectio...

Embodiment 3

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

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Abstract

The invention relates to a soft-touch HIPS composition and a preparation method thereof. The composition comprises the following components in parts by weight: 50-90 parts of HIPS resin, 10-50 parts of combined masterbatch, and 0.5-2 parts of other auxiliary agents, wherein , the combined masterbatch includes 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 other additives: 0.1- 1 serving. Compared with the prior art, the present invention greatly reduces the frictional resistance of the HIPS surface through the preparation of the master batch with excellent tactility, reduces the surface hardness of the material to a certain extent, and the surface presents lubricity and a special soft touch, so it can be applied. It has a wide range of market application prospects for various appearance parts and handle parts.

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, a two-phase system consisting of a rubber phase and a continuous polystyrene phase, which has a wide range of impact properties and processing properties, 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 electronic products, consumers are paying more and more attention to the good touch of the surfaces of automobiles, home appliances, stationery and other parts, and soft touch is increasingly becoming one of ...

Claims

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Application Information

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Patent Type & Authority Patents(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