There Is A Great Way To Improve The Quality Of PVC Foam Board

　　Improving the quality of PVC foam board is what manufacturers have been exploring and pursuing, which is related to the vital interests of customers and is also the key to winning with peers. Below, GEGE PVC Sheet Factory will briefly talk about it based on its many years of production experience and practice. The process control of PVC foam board, process control of PVC foam board, because plastic foam molding is divided into several processes, the formation of the bubble core; the expansion of the bubble core, and the curing of the foam body. For the PVC foam sheet with a chemical foaming agent added, the expansion of the bubble core has a decisive influence on the quality of the foamed sheet. PVC is a straight-chain molecule with short molecular chains and low melt strength. During the process of bubble core expansion into bubbles, the melt is not enough to cover the bubbles, and the gas is easy to overflow and merges into large bubbles, reducing the product quality of the foamed sheet.

　　The main factor to improve the melt strength of PVC and improve the quality of PVC foam sheet is to improve the melt strength of PVC. From the analysis of the processing characteristics of polymer materials, there are many ways to improve the melt strength of PVC, but the effective way is to add additives to improve the melt strength and reduce the processing temperature. PVC is an amorphous material, the melt strength decreases with the increase of the melt temperature, and vice versa, the melt strength increases with the decrease of the melt temperature, but the cooling effect is limited and only plays an auxiliary role. ACR processing agents all have the effect of improving melt strength, among which foaming regulators are effective. Melt strength increases with increasing foam regulator content. Generally speaking, as long as the screw has the sufficient dispersing and mixing ability, adding a high-viscosity foaming regulator has a more obvious effect on improving the melt strength. PVC foam board manufacturers have been committed to improving the quality of their use, which is exactly in line with the wishes of buyers. It is also why consumers want to spend less money to buy genuine products. If you only look at the appearance and price, do not consider their products. The quality, use effect, and service life will be greatly reduced.

　　PVC foam board manufacturers are also widely used in various fields. We need to use it according to the situation. The above knowledge will be introduced here in detail today. If you still need to know about this aspect later You can continue to pay attention to the website of GEGE PVC Sheet Factory for easy understanding.