application
"this is a low unsaturated polypropylene oxide ether diol, with a molecular weight of 400-4000. as the basis component for the soft segment structure of poly-urethane, it can be used for a variety of poly-urethane waterproof products.
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feature
dl series products are mainly used for case series products, with a molecular weight range from 400 to 4000. for application, as the molecular weight of the polyol increases, the elongation at break gradu-ally increases while the tensile strength and hardness dec-reases. users may choose polyether polyols of different molecular weight according to their final product’s request. they can also combine mn-3050df, ep-330ng10ld76e/10ld76ek, 10ld83e/10ld83ek and ep-3600 in groups to increase the product’s tensile strength.
performance
hydroxylvalue(mgkoh/g)26.5-29.5 acid value(mgkoh/g)≤ 0.05 water content(%)≤ 0.02 ph(ph)5-8 unsaturatedvalue (mol/kg)≤ 0.01 viscosity （mpa·s/25℃）800-1000 colourity（apha）≤20 functionality 2 molecular weight 4000
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