Polyurethane binder, preparation method and application thereof from buzai232's blog

Polyurethane binder, preparation method and application thereof

The invention relates to polymer material field and in particular relates to polyurethane adhesive, the preparation method and application thereof. The polyurethane adhesive contains isocyanate, dehydrated polylol, chain extender, etc. The polyurethane adhesive is characterized in that dosages of the materials in the formula are that: 10-30%of isocyanate, 40-79.9%of dehydrated polylol, 10-30%of chain extender and 0.11.0%of catalyzer. Get more news about polyurethane binder,you can vist our website!
Compared with prior art, the invention overcomes the defects that common polyurethane adhesives will become poor in water tolerance after long time use in external environment, which leads to the decline of cohesive property. The polyurethane adhesive is excellent in water tolerance and weatherability and will not decline in cohesive property after long time use in external environment and is good in bonding firmness. The polyurethane adhesive has double components and is small in viscosity and moderate in curing speed and can be used under room temperature. The polyurethane adhesive is low in cost and high in technical content and is widely applicable.
To be a class constitute-(AB) n-type segmented copolymer by soft, hard section urethane, because of it has some fundamental characteristics of rubber and plastics simultaneously, the specific physical performance that again other macromolecule polymeric material is arranged and do not had, as stronger viscosifying power, higher physical strength, good heat-resistance, low temperature properties and weathering resistance or the like, so polyurethane binder material is a kind of novel material with fastest developing speed, that purposes is the widest, but water tolerance is relatively poor.
The purpose of the invention is to overcome the deficiencies in the prior art, according to Principles of Chemical Engineering, with isocyanic ester, dehydration polyvalent alcohol, chainextender and little amount of catalyst are reacted, after making isocyanate prepolymer component and polyol component, again two components mixed, use, vulcanize and obtain polyurethane binder.
For achieving the above object, design a kind of polyurethane binder, comprise raw materials such as isocyanic ester, dehydration polyvalent alcohol, chainextender.It is characterized in that its prescription usage percentage is: isocyanic ester is 10%～30%, and the dehydration polyvalent alcohol is 40%～79.9%, and chainextender is 10%～30%, catalyzer 0.1%～1.0%;
Described polyurethane binder prescription usage percentage is: isocyanic ester is 23.5%, and the dehydration polyvalent alcohol is 65%, and chainextender is 11%, catalyzer 0.5%;
Described polyurethane binder prescription usage percentage is: isocyanic ester is 25.5%, and the dehydration polyvalent alcohol is 63%, and chainextender is 11%, catalyzer 0.5%;
Performance of any rubber surfacing relies on the quality of the materials being used. Our Polyurethane materials are thoroughly tested in both lab and insitu environments.

They are formulated to stand the test of time for a variety of different install uses. From playgrounds, to pool decks to running tracks, our binders have specific purposes to allow for installers to pick a suitable product for their application.

Having the ability to adjust the variables of each surface and environment makes our polyurethane an industry leader in innovation and performance.