Silicon Core Pipe Masterbatch Developed

This study is aimed at to solve the problem of the silicone pipe made in our country, such as the core layer has bad lubricity, bad-distributed and the quality is unst(?)ble. Using the of blending melting method, a new process for producing functionality silicon lastic-silicone pipe master batch which is well consistent, high mechanical strength and well-lubricity (the friction factor is low) have been developed.We regulated additive, optimized the formula and the technical parameters for this process, a quite good silicone pipe master batch can be produced using this technolog}. After many times experiments. The flowing conclusions can be abtained: when the adding amount of organic silicon additive and processing additive are different, the effect will be different. When the adding amount of processing additive is less than 1% or more than 4%. it will show synergistic effect. When the amount is more than 1% and less than 4%, it will show repulsion effect. The experiment proves: if the formula is suitable, the organic silicon additive and compound processing additive will show well synergistic effect, and when the compound additive A/B/C/D=1/1/2.5/2.5, the friction factor will reduce to 0.2 even below, each function index of silicone pipe will come up to the standard. Silicone pipe master batch mixed with matrices pitch on 1:4, extrusion silicone pipe, the solid lubricate layer of silicone pipe's inner-wall is well-distributed, the friction factor is between 0.17 and 0.19.