The rubber sealing strip processed from natural rubber as the main raw material has excellent elasticity, wear resistance and corrosion resistance, and is widely used in automobiles, construction, machinery manufacturing, chemical industry, electronic appliances and other fields, playing a good role in dustproof, waterproof, sound insulation, temperature insulation and sealing. However, the price of natural rubber on the market is high and the price fluctuates greatly, and the use of low-cost raw materials to replace natural rubber to produce rubber sealing strips and reduce costs is the common voice of rubber enterprises.
1. Latex reclaimed rubber replaces natural rubber to produce sealing strips
Latex reclaimed rubber is made of waste natural rubber, waste latex and its products by desulfurization, with high tensile strength, high elongation at break, good elasticity, wear resistance, tear resistance, with the basic performance characteristics of natural rubber, good compatibility with natural rubber, can replace natural rubber in the appropriate proportion to produce natural rubber sealing strips, some sealing strips can be completely used latex reclaimed rubber 2SLYY121, effectively reducing the cost of raw materials. The rubber hydrocarbon content of latex reclaimed rubber is an important indicator to measure its quality, and the higher the rubber hydrocarbon content, the better the quality of reclaimed rubber.
The natural latex reclaimed rubber on the market includes black latex reclaimed rubber, white natural reclaimed rubber and colored latex reclaimed rubber, of which the black rubber sealing strip uses black latex reclaimed rubber, which is lower in cost; Light-colored and white sealing strips use white latex reclaimed rubber, which is easy to match and not easy to change color; It is recommended to use white latex reclaimed rubber or latex reclaimed rubber of the corresponding color for color sealing strips, such as green natural latex reclaimed rubber for green rubber sealing strips.
2. Tire reclaimed rubber and natural rubber are used together to produce sealing strips
Tire reclaimed rubber is processed from waste tires, retains the characteristics of the original rubber, and its main components are natural rubber, synthetic rubber and carbon black, which has good compatibility with natural rubber, and can be used in combination with natural rubber to produce rubber sealing strips to reduce costs. When mixing tire reclaimed rubber in natural rubber sealing strips, it is recommended to use ultra-fine tire rubber, and when there are requirements for environmental protection and odorlessness, environmentally friendly tire reclaimed rubber and odorless reclaimed rubber that can provide relevant test reports are selected.
3. Sub-brand natural rubber replaces natural rubber to produce sealing strips
Sub-brand natural rubber usually refers to the natural rubber that is regarded as defective in the production process because some indicators do not meet the standard requirements; The price is much lower than that of natural rubber and it is not easy to fluctuate. When using sub-brand natural rubber instead of natural rubber to produce sealing strips, it is necessary to fully consider the specific application requirements and costs, as well as the specific performance requirements of the sealing strips, especially whether the rubber contains impurities.
4. Isoprene reclaimed rubber and natural rubber are used together to produce sealing strips
Isoprene reclaimed rubber has good compatibility with natural rubber, and can replace a part of natural rubber to produce rubber sealing strips, reduce costs and further improve the aging resistance of sealing strips.
Natural rubber sealing strips are widely used in many fields because of their excellent elasticity, abrasion resistance, chemical resistance and good sealing performance. The rational use of low-cost rubber resources in natural rubber sealing strips, especially reclaimed rubber, can not only reduce the cost of raw materials, but also improve the performance of rubber processing technology, such as plasticity, fluidity, less heating heat, small expansion and contraction of vulcanized rubber, and small vulcanization return to the original; In the future, Xiaobian will share with you the vulcanization formula of rubber sealing strips produced by natural rubber/reclaimed rubber.
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