News_第8页_Novista Chemicals - The pioneer of Flame retardant

8 2023-9
What is Acrylonitrile Styrene Acrylate (ASA)? ASA was originally developed as an alternative to acrylonitrile butadiene styrene (ABS). Both materials have similar mechanical properties and structures, but ASA is formulated by introducing a grafted acrylic ester elastomer (in the form of a powder) during the copolymerization of acrylonitrile and styrene. Formulating ABS, on the other hand, requires butadiene rubber. ASA also…
29 2023-8
The function and effect of Calcium stearate 1. As a PVC lubricant, it is an internal lubricant. Calcium stearate is a strong alkaline medium calcium stearate, the chemical active point of PVC resin particles can form a relatively stable complex system with it. The two long-chain alkyl groups of calcium stearate have poor compatibility with resins such as PVC, and a local microscopic two-phase interface, that is, a …
12 2023-8
Functions of Internal and External Lubrication of PVC Lubricant-3 Unbalanced External and Internal Lubrication Over and under lubrication affect the product quality as the processing suffers. Too much internal slippage results in large extrusion volumes and poor material plasticization. If the external slippage is too much, extrusion speed becomes fast, but plasticization is poor. It affects the internal performance and surface quality of the …
12 2023-8
Functions of Internal and External Lubrication of PVC Lubricant-2 Internal Lubrication of PVC Lubricant An internal lubricant for PVC plays the role of softening or plasticizing. However, it is similar to a plasticizer but is comparatively less compatible with PVC due to its longer carbon chain and lower polarity. As a result, only a small number of lubricant molecules are able to infiltrate into the polymer’s molecular chains. These lubrican…
12 2023-8
Functions of Internal and External Lubrication of PVC Lubricant-1 PVC needs different additives to prevent its degradation upon heating and shearing to get desired articles. Lubricants are crucial to add during the processing of rigid PVC. They can greatly influence the flow behavior and viscosity of PVC compositions in the processing machinery. Their role can be summarized as follows:
3 2023-6
Let's talk about WPC board-3 Pros of WPC boards:
3 2023-6
Let's talk about WPC board-2 Types of WPC boards:
3 2023-6
Let's talk about WPC board-1 With the emergence of technology, customers are becoming smarter. They no longer settle for the usual materials in designing their homes and workplaces. People are striving to research what's best for them. One of the best things is wood-plastic composite (WPC) boards.