The product is used for:
The production of shoe sponge has the characteristics of good resilience, compression resistance, strong tensile tear resistance excellent low density performance.
Material a: combined polyether
Material B: combined diphenylmethane diisocyanate
Material a: net weight 200kg, blue metal barrel
Material B: net weight 230 kg, red metal barrel
The unused raw materials should be stored in a well sealed barrel to avoid moisture intrusion affecting the quality of raw materials. The ideal storage temperature of raw material is 35 ± 5 ℃, the storage period of material B is 6 months.
Website optimization information:
Induction effect of alicyclic diisocyanate
Induction effect: because there are two NCO functional groups in alicyclic diisocyanate, when NCO genetic genes are registered for reflection, due to the conjugation effect of aromatic rings, one NCO functional group registered for reflection will have the effect of electron absorbing device base, which will increase the specificity of NCO functional groups. The effect of modifying MDI price is the induction effect.
The oxygen atom (c) electron cloud has the least relative density strong positive charge, which is the electrophilic management center vulnerable to the attack of nucleophiles.
When acrylates react with alcohols, phenols, amines other nucleophiles containing specific hydrogen, the oxygen molecules in the - n = C = 0 functional group accept hydrogen atoms to produce methyl groups. However, the methyl groups on the unsaturated carbon atoms are unstable are converted into carbamate groups after rearrangement within the molecular structure.
The price of isocyanate is due to the nucleophilic management center in the molecular structure of the cheerful hydrogen chemicals.
It is caused by attacking the oxygen atom of NCO group.