Most MC nylon tubing used at ultra-low temperatures should be highly efficient and flexible. For general plastic hoses, DOP can be used as the main flame retardant, and depending on the situation, DOA can be used, which has a very good synergistic effect and performs very well under ultra-low temperature criteria. The stable viscosity and reliability of PVC can be maintained due to the good solubility and faster plasticizing effect of DOP and PVC. It is resistant to moisture extraction and has good ultra-low softness due to its low volatility. DOA has a freezing point of -60℃ and a melting temperature of 121-125℃, which can improve the performance of plastic hose under ultra-low temperature standard.

MC nylon tube is easier to form than hard tube. It does not require water cooling equipment or laser cutting equipment. Therefore, the processing technology of the material is especially critical in the molding process, which will not only destroy the actual effect of plasticization, but also destroy the heat-resistant ductility. The mixing process is as follows: firstly put PVC, thickener, lubricant, flame retardant and filler into a high speed mixer with a mixing temperature of 60-70°C. After mixing for 5-7 minutes, put them into a low temperature high speed mixer for cold mixing for about 2 minutes, then add them into the cpenbra and mix them for 3 minutes before feeding.