English Abstract

The Introduction of Specialty Olefinic Thermoplastic Elastomer

JSR Corporation, Yokkaichi, Mie, Japan
Nippon Gomu Kyokaishi,(2020),93(8),264-268 General Review in Japanese

Thermoplastic vulcanizates (i.e. TPVs) are classified as thermoplastic elastomers, and have been replacing on cured rubber especially for environmental benefits and cost reduction. Owing to its unique morphology, cured rubber particles dispersed in resin matrix, TPVs exhibit rubber elasticity at ambient temperature, and can be molded as thermoplastic resins. EXCELINK® is advanced TPV which is developed based on JSR original rubber and selection of suitable olefinic resin, compounding and polymer alloy technologies. We have mainly three series of EXCELINK® #1000, #3000, and #4000. EXCELINK® #1000 shows not only high melt flow rate, and strong adhesion with olefinic materials, but also lower compression set. EXCELINK® #1000 is widely used in automotive applications. EXCELINK® #3000 is formed by rubber matrix with unique physical crosslinking structure, which contributes to rubber like texture. Furthermore, it can be applied to various molding procedure, such as film extrusion, foam and blow molding. EXCELINK® #4000 is newly developed TPV, which combines excellent oil-resistance for use in oil-resistant elastomers parts as alternative for oil-resistant cured rubbers. Thus, EXCELINK® has been given interests as alternative materials to conventional cured rubbers. We will continue to work on research and development of EXCELINK® for responding to needs of customer and contributing to sustainable society.

Keywords: Thermoplastic Elastomer, Dynamic Vulcanization, Reactive Processing, Thermoplastic Vulcanizates, Morphology, Polymer Alloy, Olefinic Polymer, Recyclable