The rubber bladder can be used as the skeleton of the ball after being inflated, and it is the main accessory in the ball sporting goods. It has high requirements for the air tightness and viscosity of the rubber. The bladder currently on the market mainly includes latex bladder, natural rubber bladder and butyl rubber bladder. When using natural rubber to produce bladders, latex reclaimed rubber is used as a low-cost raw material for natural rubber. It can effectively reduce the cost of raw materials when blended in rubber bladders. Even latex reclaimed rubber can be used to completely replace natural rubber to produce bladders, reducing more cost.
1. Reference formula for rubber bladder production with latex reclaimed rubber
100 parts of reclaimed latex rubber, 1.7 parts of sulfur, 5 parts of zinc oxide, 1.5 parts of stearic acid, 1.6 parts of accelerator, 1.5 parts of anti-aging agent, 3.5 parts of coumarone, 20 parts of magnesium carbonate, 50 parts of calcium carbonate, salicylic acid 0.2 parts; Total: 185 parts.
2. Selection skills of latex reclaimed rubber for rubber bladder
When using latex reclaimed rubber to completely or partially replace natural rubber to produce rubber bladders, choose products that are close to the strength of the bladder, which can better ensure the physical and mechanical properties of the rubber bladders. The use of high-fineness, impurity-free latex reclaimed rubber 2YLYY77 can better ensure the air permeability resistance of the bladder. In actual production, it is recommended to choose 80 mesh filtered latex reclaimed rubber, and for light-colored bladder, it is recommended to choose white latex reclaimed rubber.
3. Formulation design for rubber bladder produced by latex reclaimed rubber
When the latex reclaimed rubber is used to produce rubber bladder, sulfur vulcanization is often used, and the accelerator DM, accelerator CZ and a small amount of accelerator D are used together. The vulcanized rubber has good scorch safety and high mechanical strength. Compared with calcium carbonate, the proper use of magnesium carbonate in the formulation of the latex reclaimed rubber bladder can further improve the mechanical strength and heat resistance of the reclaimed rubber bladder. Anti-aging agent SP is a thermal oxygen stabilizer. The use of SP in latex reclaimed rubber bladders can significantly improve the oxidation resistance and heat resistance of rubber bladders.
4. Formulation improvement of rubber bladder produced by latex reclaimed rubber
When using latex reclaimed rubber to produce rubber bladders, rubber bladder manufacturers can also use chlorinated butyl reclaimed rubber in an appropriate amount. At the same time, adjust the rubber bladder formula according to the performance characteristics of the two reclaimed rubbers and the physical requirements of the bladder to reduce The cost will further improve the air tightness and aging resistance of the rubber bladder. Later editors will continue to share with you the mixing techniques of different types of reclaimed rubber in the rubber bladder.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits