Do you know which are the main raw materials of polyurethane foam?

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?

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&#8221…

Keeping the catalyst “honest”

“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 …

Summary of various methods to improve the hardness of polyurethane rigid foam

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 …

Polyurethane foam – various methods to improve the hardness of hard foam

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…

Application of heat stabilizers in PVC plastics

Application of heat stabilizers in PVC plastics Polyvinyl chloride (PVC) is extremely sensitive to heat, poor thermal stability, processing temperatur…

What does “Barrier Repair” repair? How to match different skin types?

In order to avoid the misunderstanding of “barrier repair” for all skin problems, and to let fat people with real skin damage problems und…

Why do sponge products turn yellow?

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

BASF anti-yellowing agent TPU used in Iphone 12 cases Hamee Corporation, a leading Japanese mobile device accessory brand, has used BASF Elastollan th…

Is it true that silicone oil shampoo causes hair loss?

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…

Homogeneous hydrolysis reaction with palladium catalyst

【Background】. Tritium (3H) labeling is an important tool for the study of pharmacokinetic and pharmacodynamic properties of drugs, radioautography, re…

Influencing factors of one-step foaming process of polyurethane foam [influence of catalyst]

Influence of catalyst Since the raw material systems of polyester polyol and polyether polyol are different, there are differences in reaction perform…

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