Adhesive of polyurethane of ability in swimming is common sort and industry appl

Polyurethane of ability in swimming glue compares glue and solvent polyurethane, glue does not have polyurethane of ability in swimming solvent stink, avirulent, free from contamination, operation is convenient, incomplete glue Yi Qing manages, solid content is high, lay aside carries safety goes to the lavatory, but glue of ability in swimming requires longer dry time and higher dry temperature, requirement of dry technology requirement is strict, in order to make sure the volatilization of water portion is complete. Glue of ability in swimming is poor to wet ability of base material embellish, thickener of high polymer of the water-solubility in adhesive can be reduced be able to bear or endure ability in swimming, in addition, the agent of finishing of ability in swimming that has not develop a form a complete set to use at present (be in a lab to study level) , still need to use solvent finishing agent, accordingly, although use gum of large base of ability in swimming, still cannot accomplish eradicative and organic dissolvent at present.

Polyurethane of ability in swimming the research of glue only then at 20 centuries 50 time, be taken seriously truly by people place is in 60-70 time, but the adhesive strength of adhesive of polyurethane of ability in swimming at that time is not high, multi-purpose the situation that reachs a few low adhesive strength with glue at packing. 70 time metaphase begins to appear the polyurethane of ability in swimming that is used at agglutinate sole glue, because function owes beautiful, add environmental protection code lax case, to 80 time end, still basically be in experiment phase. At the beginning of 90 time, code of environmental protection of Euramerican each country is strict with each passing day, to shoe factory VOC the quantity begins to control, polyurethane of ability in swimming divided the research strength that prose style free from parallelism is synthesized and uses technology to get strengthening, ability in swimming basically can satisfy the requirement of shoemaking on the function of polyurethane adhesive. For example, the Dispercoll U that the company that do obeisance to ear produces deserves to be in with Desmodur D be able to bear or endure of the company brand sneaker such as gram, Adidasi use already attained industrialized scale. Glue production leather shoes still is in polyurethane of use ability in swimming in batch trial production, also undertake in transnational corporation of a few leather shoes, wait to all be in like Bally company, Bata company, Clarks company batch try out, already obtained significant progress allegedly. Leather shoes uses polyurethane of ability in swimming glue lags behind at sneaker, its reason is roughly: Sneaker sole basically is new material, material simple character is relatively even, and sneaker factory scale is large, personnel quality and equipment standard are in shoe industry all the gender is excellent; And material of leather shoes bottom is qualitative complex, assure to use new data hard, scope is little, leather shoes product emphasizes individuation relatively, even if the product that big plant institute produces also the batch unlike sneaker product is so big.