Oil-filled styrene-butadiene rubber has good wear resistance, heat resistance and aging resistance as well as styrene-butadiene rubber. Compared with styrene-butadiene rubber, low temperature flexing, heat generation and hysteresis loss are optimized, plasticity is good, and it is more suitable for heat resistance. The drainage hose with high wear resistance is required; the tire reclaimed rubber can be used to reduce the production cost of the drainage hose in the oil-filled styrene-butadiene rubber. The type and amount of the compounding agent in the different color drainage hose formulas are different 1JLYY87.
The tire reclaimed rubber processed from the waste tire casing has good fluidity and plasticity. When the styrene-butadiene rubber and the tire reclaimed rubber are mixed with the oil-filled styrene-butadiene rubber as the main raw material, the oil-filled black styrene is generally selected. Rubber, carbon black has good dispersibility and no need for mastication. It can be directly mixed with tire reclaimed rubber and evenly mixed.
1. Reference formula for black drainage hose mixed with tire reclaimed rubber
155 parts of oil-filled styrene-butadiene black masterbatch, 70 parts of tire reclaimed rubber, 160 parts of carbon black, 40 parts of rubber oil, 1.5 parts of paraffin, 1 part of mixed wax, 1 part of antioxidant, 5 parts of zinc oxide, stearic acid 3 1.7 parts of accelerator, 2.5 parts of sulfur; total: 440.7 parts.
2. Reference formula of light-colored drainage hose mixed with tire reclaimed rubber
155 parts of oil-filled styrene-butadiene black masterbatch, 70 parts of tire reclaimed rubber, 200 parts of clay, 40 parts of rubber oil, 1.5 parts of paraffin, 1 part of mixed wax, 1 part of antioxidant, 5 parts of zinc oxide, 3 parts of stearic acid 1.8 parts of accelerator and 2.5 parts of sulfur; total: 480.8 parts.
The biggest difference between the above two formulations is the type of reinforcing filler. In the black drainage hose with tire reclaimed rubber, reinforcing carbon black is generally used, which can be mainly low-structure and high-wearing carbon black such as N326, with a small amount. High wear-resistant furnace black such as carbon black N330; light-colored drainage hose formula is not suitable for carbon black reinforcement, choose light-colored clay, improve oil-filled styrene-butadiene rubber carbon black masterbatch / tire reclaimed rubber and rubber compound processing technology Performance, improve the stiffness of the rubber, reduce the shrinkage, and improve the smoothness of the surface of the drainage hose.
When the oil-filled styrene-butadiene rubber and the tire tire reclaimed rubber are used together to produce the drainage hose, the vulcanization system is usually supplemented by the promoter M and the accelerator PZ, and the naphthenic oil is the most commonly used rubber softening oil; to further improve the drainage hose Anti-aging properties, generally combined with physical antioxidants and chemical antioxidants, paraffin, mixed wax and antioxidant RD is the most common.
Reasonable blending of tire reclaimed rubber in the drainage hose formula processed with oil-filled styrene-butadiene rubber as the main raw material can not only ensure the performance and service life of the drainage hose, but also improve the process performance of the rubber compound and reduce the cost of raw materials. Consumption of production costs.