Thermoplastic Elastomers Derived from Scrap Rubber Powder/LLDPE Blend with LLDPE-graft-(Epoxidized Natural Rubber) Dual Compatibilizer
✍ Scribed by Baochun Guo; Yan Cao; Demin Jia; Qinghua Qiu
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 305 KB
- Volume
- 289
- Category
- Article
- ISSN
- 1438-7492
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✦ Synopsis
Abstract
Summary: Attempts were made to prepare thermoplastic elastomers (TPE) from scrap rubber powder (SRP) and linear low‐density polyethylene (LLDPE) as thermoplastic polymer matrix. The solid‐phase grafted copolymer of LLDPE (LLDPE‐g‐VM) and epoxidized natural rubber (ENR) were used as dual compatibilizers to improve the interfacial adhesion between SRP and LLDPE. The compatibilized SRP/LLDPE blends had obviously improved the interfacial properties between SRP particles and LLDPE. Using this method, thermoplastic elastomer was prepared successfully. The mechanical properties especially elongation at break was improved significantly. SEM and TEM studies showed that the ENR/LLDPE‐g‐VM dual compatibilizer improved the distribution state of SRP particles in LLDPE and the adhesion between SRP and LLDPE. DSC results showed a distinct glass transition at 74 °C of the interfacial region. The improvement in mechanical properties was attributed to the enhanced interfacial properties of the blend.
Surface of SRP particles of the composites compatibilized by the dual compatibilizer.
imageSurface of SRP particles of the composites compatibilized by the dual compatibilizer.