1. Basic reaction The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also called gel re…
1、Polyether As the main raw material, polyether reacts with isocyanate to produce carbamate, which is the skeleton reaction of foam products. In the c…
The main component of polyurethane foam (PU foam) is polyurethane, the raw material is mainly polyisocyanate and polyol, by adding appropriate additiv…
Is silicone oil good or not? I do not know since when, in the hairdressing and hair care industry on the popular concept of “silicone-free”…
“I am not afraid of honest people not being smart, but I am afraid of smart people not being honest”. Coincidentally, the same applies to …
In the process of foaming, if the hard foam is not hard enough, how to improve the hardness? In this regard, I have collected some solutions for your …
In the process of foaming, if the hardness of the hard foam is not enough, how to improve the hardness? In this regard, I have collected some solution…
Why do sponge products turn yellow? Usually, from the analysis of additives, the yellowing of sponges include the following four kinds. 1, sponge foam…
BASF anti-yellowing agent TPU used in Iphone 12 cases Hamee Corporation, a leading Japanese mobile device accessory brand, has used BASF Elastollan th…
The hair of contemporary youth is very valuable The post-90s who are punking out for health The obsession with hair care and anti-hair loss is unprece…
【Background】. Tritium (3H) labeling is an important tool for the study of pharmacokinetic and pharmacodynamic properties of drugs, radioautography, re…
Influence of catalyst Since the raw material systems of polyester polyol and polyether polyol are different, there are differences in reaction perform…
