Several small materials in the latex recycled rubber high elasticity sponge products application skills
When using latex recycled rubber to prepare sponge foam rubber products, latex recycled rubber index, vulcanization system, foaming system, reinforcement filling system, anti-aging system, softening system will affect the performance and service life of foamed products. Among them, stearic acid, paraffin wax, calcium carbonate, anti-coke agent with several small materials in the latex high elasticity sponge foam products play a multiple role at the same time may also lead to some small problems, sponge foam products manufacturers should be used reasonably.
1. Stearic acid and paraffin role
Stearic acid in the production of recycled latex products is mostly used with zinc oxide, to play a lubrication, foaming, prevention of scorching, activation of the vulcanization system and other multiple roles; paraffin wax is commonly used as a physical anti-slip agent. Latex recycled rubber high elasticity sponge foam products formula, stearic acid and paraffin wax can prevent sponge products by compression, sponge hole wall adhesion problems, improve the sponge products processing process operation, prevent sticky rollers, smooth demoulding.
2. Careful use of calcium carbonate
Calcium carbonate is a common rubber filler in the production process of latex recycled rubber products, reduce the finished product can improve the tensile strength of sponge foam products, abrasion resistance, tear strength, etc., the amount is too much will affect the mechanical strength and elasticity of foam products.
For colored latex high elasticity sponge foam products, the application of calcium carbonate will lead to the migration of certain coloring agents; in the black latex sponge foam products in large quantities of calcium carbonate 2LLYY821-SJ and will lead to products with dark surface, not enough brightness problems. Therefore, high elasticity latex sponge foam products formula must be careful to use calcium carbonate, reasonable control of calcium carbonate dosage.
3. Pay attention to the impact of small materials on the color of colored sponge products
The use of latex recycled rubber production of colored high elasticity sponge foam products, such as travel shoe soles, sponge outsoles, etc., must pay attention to the selection and matching of coloring agents, if necessary, several coloring agents and use the ratio to maintain stability, to ensure that different batches of products with the same tone. It should be noted that colored latex foam products in order to obtain the ideal color, never use polluting antioxidants and other migration-prone with the agent.
4. The multiple roles of anti-coke agent
The reasonable use of anti-coke agent in the formulation of latex recycled rubber products can effectively avoid the early vulcanization of rubber. In actual production, sponge rubber plasticity is good, not easy to occur scorching problems, but many latex high elasticity sponge foam product formulations still use anti-coking agent, its main purpose is naturally not to prevent scorching, but through the use of anti-coking agent to regulate the speed of decomposition and vulcanization of the foaming agent, the amount is generally controlled between 0.1-0.5 quality parts, if necessary, can be increased to 1 amount of parts.
The use of latex recycled rubber production of high elasticity sponge foam products, the effect of many small materials with the usual role of a certain difference, rubber products manufacturers must be used reasonably to reduce the production costs of high elasticity sponge foam products at the same time to further optimize product quality. In actual production, due to the latex sponge foam rubber preparation process conditions range is very narrow, in the plastic refining, mixing, turning, vulcanization and other processes must be strictly controlled parameters, there is an opportunity to continue to discuss with you.
