Latest article
Basic factors affecting the performance of polyurethane adhesives
There are many varieties of polyurethane products , different shapes, affecting various polyurethanesadhesivesThere are many factors that determine product performance, and there is a certain relation…
Effect of soft segments on polyurethane properties
Oligomer polyols such as polyether and polyester form soft segments. Soft segments account for the majority ofPU, and the properties of PU prepared from different oligomer polyols and diisocyanates va…
Effect of hard segments on polyurethane properties
The hard segment of polyurethane is composed of reacted diisocyanate Or it is composed of diisocyanate and chain extender, containing strong polar groups such as aryl group, urethane group, substitute…
Introduction to the morphological structure of polyurethane
The performance of polyurethane, In the final analysis, it is affected by the morphological structure of the macromolecular chain. Especially for polyurethane elastomer materials, the phase separation…
General situation of the development and current situation of polyurethane
The development of polyurethane has gone through more than 70 years , if we count from the synthesis of isocyanate, we have to push it forward almost a century. As early as 1849, German chemist Wurz p…
Structural characteristics of polyurethane
<font face=" The chemical structure of polyurethane is characterized by repeated urethane segments in its macromolecular backbone. The main chain of the polyurethane macromolecule is composed …
Synthesis and processing methods of polyurethane
The synthesis method of polyurethane is based on chemical reactions , there are one-step method and two-step method. The so-called one-step method is to mix all the raw materials at one time or comple…
Polyurethane reacts with water
Production of microporouspolyurethane Elastomers often use water as a foaming agent. In addition, trace amounts of water are inevitably present in polyols such as polyester and polyether and other raw…
Is the adhesiveness of foam caulking strong and how to clean it?
Foam caulkIn our It is very common in daily life. It is a one-component polyurethane adhesive that is easy to use, has excellent performance and has a wide range of uses. So since it is an adhesive, y…
Netizens explain how to clean foam caulking
Foam caulk is a polyurethane adhesive that can react with moisture in the air Curing reaction, the cured foam can be waterproof, soundproof, and gap-filling. It is a new website building product that …
