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High-resilience thermoplastic elastomer composition and preparation method thereof

A thermoplastic elastomer and composition technology, applied in the field of polymer materials, can solve problems such as poor resilience, application limitations, and large creep loss of films

Inactive Publication Date: 2015-12-23
益阳达普林科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film made by this formula has a large creep loss and poor resilience; by adding aliphatic hydrogenated resin, the content of polystyrene is reduced, and the processing performance of the film and sheet is improved, but the resulting film Films and sheets also have poor hand feeling and poor resilience, and their application is limited in applications that require high strength and high resilience

Method used

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  • High-resilience thermoplastic elastomer composition and preparation method thereof
  • High-resilience thermoplastic elastomer composition and preparation method thereof

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with specific examples, but the scope of the present invention is not limited to these examples.

[0033] According to the example formula listed in Table 1, these 10 kinds of elastomer compositions were prepared in turn, and the numbers in Table 1 represent the addition ratio of each component, expressed in weight percent.

[0034] First, fully mix the SEEPS block copolymer and mineral oil according to the specified ratio, then add metallocene polyethylene, polystyrene, polybutadiene, tackifying resin and other additives, mix well and evenly add to the twin-screw extruder After leaving the machine, it is cut into columns by a granulator and fully dried. The temperature of the twin-screw extruder is usually set between 190 and 230°C; the screw speed is set between 200 and 350 rpm. The granular elastomer composition was then prepared into a sheet with a thickness of 0.8 mm using a single-screw extruder...

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Abstract

The invention provides a high-resilience thermoplastic elastomer composition having remarkably-improved hand feeling. The high-resilience thermoplastic elastomer composition is used for preparation of high-strength high-resilience films and sheets. The high-resilience thermoplastic elastomer composition is prepared from, by weight, 40-60 parts of SEEPS block copolymer, 20-40 parts of mineral oil, 5-15 parts of metallocene polyolefin, 5-20 parts of polybutadiene, 3-15 parts of polystyrene and 3-10 parts of tackifying resin.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a high-resilience thermoplastic elastomer composition with significantly improved hand feeling and a preparation method thereof, which are used for preparing films and sheets. Background technique [0002] Thermoplastic elastomers have the high resilience properties of rubber at room temperature, and can be plasticized and molded under high temperature conditions. They have good processing properties of plastics, so they can be widely used in medical equipment, body products and clothing that require high resilience and easy processing. Fields, such as: tourniquets, infusion tubes, diaper pads, fitness tension ropes / rings, and some sports wear products. [0003] Styrenic thermoplastic elastomers are gaining more and more attention due to their easy availability of raw materials, wide range of formula design, and large hardness adjustment range. For some products in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L91/00C08L23/06C08L23/12C08L47/00C08L25/06C08L57/02
Inventor 张大志师小康温韶坤洪春林谷平生
Owner 益阳达普林科技有限公司