When natural rubber and latex reclaimed rubber are used in combination to produce a rubber transmission belt, the softening system can increase the plasticity, fluidity, and adhesion of the combined rubber, further improving the processing performance of the rubber material; the anti-aging system can delay aging and extend the life of the transmission belt; for the required color Pigments are indispensable for bright drive belt products; then in actual production, how should these compound systems choose compounding agents, and what issues should be paid attention to when designing softening systems and anti-aging systems?
3. Design of transmission belt softening system
The rubber material of the transmission belt cloth layer requires that the rubber material does not fall after the pressure is delayed. The rubber material used for the mouth glue needs to be slightly softer. It is necessary to use an appropriate amount of softener, such as rosin and Gumaron resin, to improve the processing performance of rubber products. In actual production, the amount of softener and plasticizer in the softening system of the natural rubber / latex reclaimed rubber transmission belt should not be too much, as long as it meets the relevant process requirements.
As a softener in rubber, rosin can soften rubber, be easy to knead, promote the uniform dispersion of fillers, improve the tear strength, elasticity, heat resistance and adhesion of rubber; Gumalon resin 2LLYY513 is recycled in natural rubber / latex The compound rubber compound can play multiple roles in softening, strengthening, thickening, and dispersing; further improve the processing performance of the compound rubber compound and reduce production energy consumption.
4. Design of anti-aging system for transmission belt
When natural rubber and latex reclaimed rubber are used together to prepare the various rubber layers of the transmission belt, the cloth layer rubbing glue has high requirements on the flexibility and heat resistance of the rubber material. Choosing the appropriate variety of anti-aging agent can significantly improve the transmission belt cloth layer adhesive Material flexing properties, such as anti-aging agent A, anti-aging agent D, etc .; when preparing the sealing adhesive and counter-adhesive of the transmission belt, it is best to use an anti-aging antioxidant such as anti-aging agent MB to avoid the problem of discoloration and migration of the transmission belt.
5. Tips for selecting pigments for transmission belts
Sealing glue, butt glue and edge glue of ordinary flat transmission belts generally require bright colors of the glue and indispensable pigments. The amount of zinc oxide and zinc barium white in the natural rubber / latex reclaimed rubber sealing glue can be used to ensure the bright color of the combined rubber; the red transmission belt sealing glue, the counterpart glue, and the side glue glue need to use organic red pigments; the side glue glue requires glue The color of the material is more vivid, and it is necessary to increase the amount of organic pigment and zinc barium white.
Latex reclaimed rubber instead of natural rubber to produce flat transmission belts can effectively reduce raw material costs while ensuring quality. In the actual production, after the rubber product manufacturer chooses the appropriate latex reclaimed rubber and rationally designs the transmission belt formula, it is necessary to appropriately adjust the production process parameters, especially the mixing process and vulcanization process. The editor will have the opportunity to discuss with you about natural Production technology of rubber / latex recycled and combined production drive belt.