Polyvinyl chloride (PVC for short) as the world's largest amount of general plastic, according to different uses can add different additives, according to the amount of plasticizer different PVC products can be divided into PVC hard products and PVC soft products. Different PVC lubricants lead to different physical and mechanical properties of PVC plastics. PVC products with the same purpose due to material formula, quality of auxiliary materials, production equipment, production process and other reasons lead to a large difference in product quality.
Традиционално, делимо мазиво ПВЦ тврдих производа на унутрашње и екстерно подмазивање, али са променљивим захтевима квалитета производа, као и променом потражње тржишта, оригинална теорија подмазивања није била у стању да задовољи техничке потребе специфичне производње.
The classical mechanism of internal and external lubrication is that internal lubrication is used as an effective means to reduce the viscosity of PVC, thus reducing the generation of friction heat and improving the fluidity of materials. Especially to ensure the melt strength of some products, increase the back pressure; The external lubricant, as a "lubricating layer", exists between materials and equipment to ensure the brightness of products and adjust the plasticizing time.
