why do sponge products turn yellow? generally, from the perspective of additives, the yellowing of sponge includes the following four types: 1. during…
introduction of polyurethane delay catalyst who has the introduction of polyurethane delay catalyst? delayed catalyst, namely polyurethane delayed cat…
application of food colorants color is one of the important standards to evaluate the appearance quality of food. when people judge the quality of foo…
what are the plastic colorants? how to choose plastic toner? in modern life, plastics are widely used. there are many kinds of plastics, such as pvc, …
why does nylon fade easily when dyed? how to choose colorants for nylon? nylon, the professional name of polyamide, is abbreviated as pa. nylon has hi…
application of polyurethane catalyst in the synthesis of hard plate specifically, the invention relates to a catalyst for preparing polyurethane and t…
discussion on application of catalyst in polyurethane rigid foam for refrigerator preface in the foaming process of polyurethane rigid foams for refri…
application of catalysts in pharmaceutical intermediates the so-called pharmaceutical intermediates are actually some chemical raw materials or chemic…
application of catalyst in sole materials of sports shoes rubber sole the rubber sole refers to the sole made of rubber. the rubber sole materials can…
application of catalysts in paint additives paint additives, also known as paint accessories, are auxiliary materials for preparing coatings, which ca…
application of catalyst in rubber runway and plastic runway plastic track plastic track, also known as all-weather track and field track, is composed …
application of catalyst in automotive sponge seats the so-called car seat is the seat used when taking a car. according to the location, it can be rou…