? ? ? ?EVERSORB 672 is used in polyurethane. Especially suitable for thermoplastic polyurethane .EVERSORB 672 prevents the processing , light and weather induced degradation of thermoplastic?polyurethane .??It? is particularly discolor resistant for thermoplastic polyurethane.?
Appearance:? ?? ? ??Slightly yellowish liquid
Volatility? ?(TGA-data, heating rate 20oC/min in air)
? ? ? ? ? ? ? ? ?% weight loss? ? ? ? ? Temperature(℃)
? ? ? ? ? ? ? ? ? ? ? ? ?1? ? ? ? ? ? ? ? ? ? ? ? ?165
? ? ? ? ? ? ? ? ? ? ? ? ?5 ? ? ? ? ? ? ? ? ? ? ? ?198
? ? ? ? ? ? ? ? ? ? ? ? 10? ? ? ? ? ? ? ? ? ? ? ? 214
Advantages：
? ? ? ? High heat stability.
? ? ? ? High UV light stability, does not bring smells to the polymers.
? ? ? ? Very good compatibility with polyurethane offering homogeneous distribution during processing.
Application:
? ? ? ? ?EVERSORB 672 can be used in thermalplastic polyurethane. In general, it is recommended 0.5?to 1 wt% based on polymer weight.
Discoloration Test :
? ? ? ? ?sample: ??3mm thick injection molded thermoplastic?polyurethane plaques. (clarity)?
? ? ? ? ?Model:? ? ? ? ASTM D1148
? ? ? ? ?Test Time:? 24Hrs
? ? ? ? ?Lamp:? ? ? ? 300W UV light
? ? ? ? ?Additive:? ? ?0.6% light stabilizer
? ? ? ? ?Test item:? ?Delta yellowness index (ΔYI)
? ? ? ? ??
Toxicity & Safety :
? ? ?EVERSORB 672 can be safety handled without any irritation caused to the skin.
Storage :
? ? ?EVERSORB 672 should be stored in a close system and be kept in a dry, dark place without?any light exposure.
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他們見證永光化學紫外線吸收劑品質?——穩(wen)定、可(ke)靠
? ? ? ?永光化學(xue)(xue)是(shi)知(zhi)名上市(shi)化工企業集團，其紫外線吸收劑(ji)產業在(zai)業界(jie)具有廣泛的(de)知(zhi)名度。品(pin)質(zhi)穩定、可靠是(shi)永光化學(xue)(xue)產品(pin)的(de)重要特點。
? ? ? 上海蒼洪實業?20?余年專注高分子材料抗紫外線、抗黃變，為客戶提供咨詢、配方建議，彰顯專業服務。
