Fast Curing Flexible Resin - UT70135.

At present, the two official polyurethane resins on the market generally have excellent flexibility, low volume shrinkage, but the curing speed is slow, in practical applications easily lead to poor system curing or construction window narrow problems. UT70135 is specially developed for this problem of two-function polyurethane acrylates, mainly used in UV glue, methyl adhesive system.
test formula uses resin with a small amount of monomer, moderate amount of trigger agent, mainly to investigate the resin curing speed, retouching, flexibility, initial yellowing and other performance

. Experiments show that UT70135 has the following characteristics.
1 Fast Curing
Compared with traditional two-function polyurethane acrylic, the UT70135 is very fast to cure, can be dried at 200mJ/cm2 energy, and has a good cross-link density, low volume shrinkage. The resin is ideal for low-energy curing systems, and with a small amount of high-energy resins or monobodies can further increase cross-link density and enhance deep curing.
2 Flexible
. The main chain of UT70135 is a polyether structure, so it has excellent flexibility, in the PC film 180 degrees fold many times, the paint film does not crack. Through universal tensile machine testing, the resin elongate rate of up to 100%, tensile strength of 12Mpa, with good cohesion and tensile strength, used in adhesive formulation, can take into account flexibility and reactive activity.
3 Retouching
. UT70135 has excellent pigment wetting, strong coloring force, good color display. When used in meth adhesive, good compatible with the color paste, there will be no pigment analysis, flocculation and other adverse conditions. At the same time, the resin has a good initial yellow change, in the white color glue is not easy to lead to yellowing problems.
4 Low irritation
in many applications and construction, especially adhesive systems, the smell and irritation of raw materials have higher requirements. UT70135 molecular weight is medium, low volatility, small odor, small skin irritation, can fully meet the construction application of odor and irritation requirements.
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