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中文简体DINP plasticizer Diisononyl phthalate (DINP), DINP is formed by the esterification reaction of phthalic anhydride and isononyl alcohol. DINP is a general plasticizer. One of the main raw materials of DINP, isononyl alcohol (INA),
Compared with DOP, DINP has a larger molecular weight and a longer carbon chain. So it has better aging performance, anti-migration performance, anti-extraction performance, and higher high temperature resistance. Correspondingly, under the same conditions, the plasticizing effect of DINP is slightly worse than that of DOP. It is generally believed that DINP is more environmentally friendly than DOP.
As a main plasticizer, DINP is widely used in various soft PVC products. Such as wire and cable, film, PVC leather, PVC floor leather, toys, shoe materials, edge banding, sheaths, wigs, tablecloths, and so on. In some rubber products and coatings, DINP also has a small amount of application.
DINP is an oily liquid in normal state, insoluble in water. Tank trucks are generally used for transportation, and small batches are transported in iron drums or special plastic drums.
In general, DINP's sales indicators are described as follows:
Diisononyl phthalate
Project index High-grade product First-class product Qualified product
Slight odor ester content, %≥ 99.5 99.0 99.0
Flash point, °c≥219
Moisture,%≤0.1
Chromaticity, (platinum-cobalt) number ≤ 20 30 40
Refractive index (20°c) 1.484-1.488
Viscosity (20°c), mPa.s 78-82
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