Antistatic thermoplastic rubber band and preparation method thereof

Abstract

The invention discloses an antistatic thermoplastic rubber band and a preparation method thereof. The antistatic thermoplastic rubber band is prepared from the following raw materials in parts by weight: 80-120 parts of a styrene elastomer, 4-6 parts of titanium dioxide, 5-10 parts of a master batch adhesive, 1-2 parts of a light aging resistance, 1-3 parts of silicon oil, 2-4 parts of a fatty acid salt amphoteric antistatic agent, 1-3 parts of silicone master batch and 5-8 parts of kaolin. The preparation method comprises the following steps: (1) preparing the materials; (2) feeding the materials, namely, firstly, putting the styrene elastomer into a stirring machine, adding the fatty acid salt amphoteric antistatic agent, the silicone master batch and the kaolin, sufficiently stirring, adding other raw materials, stirring, thereby obtaining a mixed material; (3) performing warming extrusion, adding the mixed materials into an extruder for extrusion, and respectively controlling the temperatures of three parts, namely, the head, the transition section and the mouth mold of the extruder to be 190-200 DEG C, 200-210 DEG C and 225-235 DEG C in extrusion; (4) cooling and cutting; (5) drying, packaging, and storing in a warehouse. The antistatic thermoplastic rubber band disclosed by the invention is good in antistatic property, long-lasting and efficient in antistatic property, and can be applied to equipment with high antistatic requirements.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to an antistatic thermoplastic rubber rubber band and a preparation method thereof. Background technique [0002] Thermoplastic elastomer TPE / TPR, also known as artificial rubber or synthetic rubber, its products not only have the excellent properties of high elasticity, aging resistance and oil resistance of traditional cross-linked vulcanized rubber, but also have the characteristics of convenient processing and wide processing methods of ordinary plastics , can be produced by injection molding, extrusion, blow molding and other processing methods, which not only simplifies the processing process, but also reduces processing costs. Therefore, thermoplastic elastomer TPE / TPR materials have become the latest materials to replace traditional rubber to prepare rubber bands. It is environmentally friendly and non-toxic. , Comfortable hand feeling and exquisite appearance. Howe...

AI Technical Summary

Problems solved by technology

However, the current thermoplastic elastomers have high insulation like most rubbers and plastics, and the surface resistivity is generally 10 15 Ω / sq or more, the prepared rubber band will generate a lot of static electricity during use. These static electricity will generate gravitational force and attract dust or electrostatic discharge will damage sensitive electronic components and will eliminate or change magnetic media. In a flammable environment There will also be explosions and fires