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Rubber-coated thermoplastic elastomer material for resisting ultraviolet aging and preparation method of rubber-coated thermoplastic elastomer material

A thermoplastic elastomer, anti-ultraviolet aging technology, applied in the field of materials, can solve the problems of poor anti-aging and anti-ultraviolet light performance, easy to appear sticky, easy to yellow on the surface, etc., to increase the corrosion resistance, and the preparation method is simple and easy. OK, good elasticity

Inactive Publication Date: 2021-05-04
昆山科信高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the ABS coating materials on the market use TPU as the main material. The hardness is adjusted by adding white oil and a small amount of SBS. Adding TPU can increase the compatibility between the coating material and ABS products. The coating effect is ideal, but the aging resistance and UV resistance of the material are not good, the surface is easy to yellow, and it is easy to appear sticky after long-term use

Method used

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  • Rubber-coated thermoplastic elastomer material for resisting ultraviolet aging and preparation method of rubber-coated thermoplastic elastomer material
  • Rubber-coated thermoplastic elastomer material for resisting ultraviolet aging and preparation method of rubber-coated thermoplastic elastomer material
  • Rubber-coated thermoplastic elastomer material for resisting ultraviolet aging and preparation method of rubber-coated thermoplastic elastomer material

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Experimental program
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preparation example Construction

[0034] Embodiments of the present invention also provide a preparation method for an anti-ultraviolet aging-encapsulated thermoplastic elastomer material, comprising the following steps:

[0035] Step 1: dissolving white oil in styrene-based elastomer, and stirring at room temperature for 15 minutes until white oil is completely absorbed by styrene-based elastomer to obtain the first mixture;

[0036] Step 2: Obtain the following materials according to weight ratio: polypropylene 20%-50%, compatibilizer 0.1%-10%, lubricant 0.1%-30%, antioxidant 0.1%-10%, and anti-ultraviolet agent 0.1%- 10%, stirred at room temperature for 10mins until uniformly mixed to obtain the second mixture;

[0037] Step 3: dissolving the second mixture in the first mixture, kneading and dispersing after mixing evenly, and processing and molding to obtain the conductive thermoplastic elastomer material.

[0038] Further, a 48:1 twin-screw extruder is used for processing and forming, and the extrusion a...

Embodiment 1

[0048] Step 1: Dissolve 100g of white oil (SEBS) in 60g of styrene-ethylene / butylene-styrene block copolymer, and stir at room temperature for 15mins until the white oil is completely absorbed by the styrene-based elastomer to obtain the first mixture;

[0049] Step 2: Obtain the following materials according to the weight ratio: 80g of polypropylene, 100g of linear alkanes, 40g of compatibilizer, 6g of antioxidant, 10g of anti-ultraviolet agent, stir at room temperature for 10mins until uniformly mixed, and obtain the second mixture;

[0050] Step 3: dissolving the second mixture in the first mixture, kneading and dispersing after mixing evenly, and processing and molding to obtain the conductive thermoplastic elastomer material.

[0051] Extrude pellets with a twin-screw extruder with an aspect ratio of at least 48:1. The processing screw uses the screw with strong shear and strong dispersion function developed by our company. The extrusion granulation temperature is 200°C,...

Embodiment 2

[0053] Step 1: Dissolve 100g of white oil (SEPS) in 60g of styrene-ethylene / butylene-styrene block copolymer, and stir at room temperature for 15mins until the white oil is completely absorbed by the styrene-based elastomer to obtain the first mixture;

[0054]Step 2: Obtain the following materials according to the weight ratio: polypropylene 80g, linear alkanes 100g, compatibilizer 40g (20g compatibilizer EAA, 20g compatibilizer 1901), antioxidant 6g, anti-ultraviolet agent 10g, stir at room temperature 10mins to mix evenly, make the second mixture;

[0055] Step 3: dissolving the second mixture in the first mixture, kneading and dispersing after mixing evenly, and processing and molding to obtain the conductive thermoplastic elastomer material.

[0056] Extrude pellets with a twin-screw extruder with an aspect ratio of at least 48:1. The processing screw uses the screw with strong shear and strong dispersion function developed by our company. The extrusion granulation temp...

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Abstract

The invention provides an encapsulated thermoplastic elastomer material for resisting ultraviolet aging. The encapsulated thermoplastic elastomer material is prepared from the following components in percentage by weight: 20 wt%-50 wt% of polypropylene, 5 wt%-15 wt% of a styrene elastomer, 5 wt%-25 wt% of white oil, 0.1 wt%-10 wt% of a compatilizer, 0.1 wt%-30 wt% of a lubricant, 0.1 wt%-10 wt% of an antioxidant and 0.1 wt%-10 wt% of an anti-ultraviolet agent. According to the rubber-coated thermoplastic elastomer material for ultraviolet aging resistance provided by the invention, the oxidizing agent and the anti-ultraviolet agent are added, so that the corrosion resistance of the elastomer material is improved, and the rubber-coated thermoplastic elastomer material meets the test requirement of color difference grade 2 after 200 hours of UV aging resistance at 60 DEG C. The elastomer material is scratch-resistant in surface, good in elasticity, high in strength, recyclable, green and environment-friendly, and the preparation method is simple and easy to implement.

Description

technical field [0001] The invention relates to a rubber-coated thermoplastic elastomer material for anti-ultraviolet aging, in particular to a rubber-coated thermoplastic elastomer material for anti-ultraviolet aging and a preparation method thereof, which belongs to the field of material technology. Background technique [0002] In the prior art, TPE soft rubber is used as the outer layer of soft rubber, and materials such as plastic, metal, and woven cloth are used as the inner layer, so that glue-coated injection bonding can be obtained. Through overmolding technology, compounding thermoplastic elastomer with ABS matrix can not only make the surface of ABS products soft, but also increase product functionality and added value, such as noise reduction, shock absorption, waterproof, anti-collision, anti-skid, comfort, etc. At present, most of the ABS coating materials on the market use TPU as the main material. The hardness is adjusted by adding white oil and a small amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/00C08L53/02C08L91/00C08L23/08C08K5/134C08K5/07C08K5/3475C08K5/3492
CPCC08L23/12C08L23/14C08L53/00C08L2201/08C08L2207/14C08L2205/035
Inventor 肖卫永
Owner 昆山科信高分子材料有限公司