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Thermoplastic elastic body for jetting and adhibiting with ABS at low-temperature

A technology of thermoplastic elastomer and thermoplastic polyurethane, which is applied in the field of thermoplastic elastomer, can solve the problems of low thermal deformation temperature and easy deformation of ABS resin, and achieve good adhesion performance and low hardness

Inactive Publication Date: 2008-08-20
东莞市国丰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the thermal deformation temperature of ABS resin is relatively low (the thermal deformation temperature of general-grade ABS resin is below 105°C, and the Vicat softening point is 160°C; the heat-resistant temperature of heat-resistant ABS resin is 110-120°C, and the super-heat-resistant grade The heat-resistant temperature of ABS resin is 125-130°C), and the temperature of general injection-bonding ABS products (very mature) is above 180 degrees, but for some hollow products, or products with complex shapes, high temperature is easy to deform, so Need a low-temperature shot-bonded ABS material, generally not higher than 150°C, while the injection molding temperature of existing thermoplastic elastomers shot-bonded with ABS is generally above 180°C, which cannot meet the requirements

Method used

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  • Thermoplastic elastic body for jetting and adhibiting with ABS at low-temperature
  • Thermoplastic elastic body for jetting and adhibiting with ABS at low-temperature
  • Thermoplastic elastic body for jetting and adhibiting with ABS at low-temperature

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Embodiment Construction

[0021] 1. Raw material ratio

[0022]

[0023]

[0024] Among the above raw materials, the compatibilizer TU-5265 and 1901 can be replaced by other SEBS-co-TPU and SEBS-g-MAH of the same type;

[0025] Mineral oil 500N and KN4006 can be replaced by other saturated linear paraffin oil or naphthenic oil with a flash point higher than 200°C;

[0026] The auxiliary agent 1753 can be replaced by other suitable fatty acids, fatty acid amides, polysilicone;

[0027] The antioxidant 1076 can be replaced by other similar antioxidants 1010, 168;

[0028] The mineral filler is one or a mixture of calcium carbonate, talcum powder, gypsum powder, asbestos powder, clay, barium sulfate, mica powder, and kaolin.

[0029] 2. Injection molding

[0030] Take the raw material components according to the above-mentioned ratios, mix SEBS and mineral oil thoroughly, absorb the oil, add compatibilizer, TPU, additives, antioxidants, mineral fillers, etc., and mix evenly in the mixer. The ...

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Abstract

The invention relates to a thermoplastic elastomer used for projecting and clinging with ABS at low temperature, and components of the raw material are: thermoplastic polyurethane: 20 to 35 portions; compatilizer: 6 to 7 portions; SEBS resin: 20 to 25 portions; mineral oil: 22 to 29 portions; mineral filling: 10 to 20 portions and antioxidant: 0.1 to 1 portion, and 0.1 to 1 portion of processing aid can be added selectively. The thermoplastic elastomer used for projecting and clinging with ABS at temperature is low in hardness, good in surface effect at the injection temperature of 135 DEG C, good in the property of projecting and clinging with the ABS resin at low temperature.

Description

【Technical field】 [0001] The invention relates to the field of polymer materials, in particular to a thermoplastic elastomer used for low-temperature injection bonding with ABS. 【Background technique】 [0002] ABS resin has excellent properties such as impact resistance, high rigidity, oil resistance, low temperature resistance, good dimensional stability, and low molding shrinkage. It is a thermoplastic with a wide range of uses. However, the surface of products made of ABS resin is often hard and smooth, which lacks texture and feel in some product applications. Therefore, a layer of soft glue is often coated on the surface of ABS finished products to enhance its texture and feel. Usually, the industry adopts the method of sticking a layer of thermoplastic elastomer on the surface of ABS finished products. Injection-bonded ABS thermoplastic elastomers are widely used in various injection molding products with ABS as the base material, making ABS finished products have goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L53/02C08K13/02C08K5/01C08K3/00C08L51/04
Inventor 黄林应胡长存邱廷模
Owner 东莞市国丰塑业有限公司
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