Monoisocyanate is an important organic synthesis intermediate, which can be made into a series of carbamate insecticides, fungicides and herbicides, and can also be used to improve the water resistance of plastics, fabrics and leather. Isocyanates with bifunctional groups and above can be used to synthesize a series of polyurethane foams, rubber, elastic fibers, coatings, adhesives, synthetic leather, artificial wood and so on.
At present, toluene diisocyanate (TDI) has the widest application and the largest output. Diphenyl methane diisocyanate (MDI). Chenyu8787 (contact station TA)2.3 hydrophilic curing agent for coating system of Pusher Company.
EasaquaTM WT 2 102, X M 50 1, X M 502, X D 40 1 and X D.
803 is a hydrophilic modified polyisocyanate, which can be self-emulsified in water and has very high polarity.
Good compatibility, quick drying, high gloss, low odor, low viscosity and other characteristics, suitable for
Used as a cross-linking agent for two-component coatings, it can be applied to wood coatings and soft sensing plastics.
Paint, metal paint in general industrial field, concrete paint, automobile repair.
Paints and coatings for transportation and agricultural equipment. Among them, WT 2 102 is the first.
Substitute products containing polyoxyethylene alkyl phenol ether (APEO) derivatives; X M 50 1
X M 502 is a derivative based on HDI, which has excellent miscibility and phase.
Capacitance, without APEO；; ; X D 40 1 and X D 803 are based on human development index and IPDI.
The derivatives of mixed polyisocyanate have excellent drying performance and can be extracted.
For high gloss and anti-blocking. The so-called blocked isocyanate is a small molecule composed of one molecule of diisocyanate and two molecules of alcohol. At a certain temperature, small molecules of alcohol will volatilize, and NCO will cross-link with larger alcohols, similar to the transesterification reaction Joeyfly (contact t a in the station) to continue to ask for help. Mcdull invincible (contact TA in the station) A slight excess of polyisocyanate reacts with polyether to form carbamate first, and then urea group. One-component polyurethane is also isocyanate, which is pre-polymerized, but not fully polymerized, and then cured after spraying. One-component polyurethane is synthesized by polymer prepolymer containing polyhydroxy polyol and polyisocyanate under certain conditions, and mixed with powder filler, plasticizer, diluent, catalyst and additive in isolated air.