奥珞斯紫外线吸收剂944的介绍
【1】CAS NO.:71878-19-8
【2】质量标准:
外观白色或淡黄色颗粒
粉末
挥发份%(m/m)≦0.5
软化点(环球法)℃≥100
灰分%(m/m)≦0.5
分子量2000--3000
透光率425nm ≥90%
500nm ≥95%
【3】性质:
光稳定剂944为新一代聚合型高分子量受阻胺光稳定剂,其分子中有多种官能团,故关稳定性能高,由于分子量大。
故具有优良的加工热稳定性,很低的挥发性和耐迁移、耐萃取、耐气体褪色等特点。
具有良好的与树脂相容性,很好的耐水抽提性,与一般的低分子量受阻胺光稳定剂相比,具有优秀的长效抗光老化性质。
【4】用途:
主要用于聚丙烯纤维、低密度聚乙烯薄膜、聚苯乙烯、ABS树脂、聚丙烯胶带、聚苯乙烯及食品包装等制品。
光稳定剂944与抗氧剂、紫外线吸收剂具有良好的协同效果,能进一步提高制品的耐热、耐光老化效果。
在制品加工时直接配合或以母料形式混配。
Ouroboros Ultraviolet Absorbent 944
1. Chemical Name: Light stabilizer-944
2. CAS NO.:71878-19-8
3. Specification:
Appearance White or yellowish crystalline
powder
V olatility ≦0.5
Ring and ball softening point ≥100℃
Ash content(m/m)≦0.5
Molecular weight 2000--3000 Light transmittance 425nm ≥90%
500nm ≥95%
4. Product Property:
It’s a new generation of hmw-polymeric hindered amine light stabilizer. Due to the large of molecular weight, it has excellent processing thermal stability and lower volatility that will be resist transference, extraction and being discolored by gases. With the good compatibility of resin, it is good at resisting water extraction. It
has long-term photoaging resistance that compare with lmw-polymeric hindered amine light stabilizer.
5. Purpose:
It mainly works on the products of polypropylene fiber, low-density polyethylene, polystyrene, ABS resin, polypropylene tape, polystyrene
and the food package. Its synergism both anti-oxygen and ultraviolet absorbent, that can improve the effect of the products’heat resistance
and photo-aging resistance. When processing, it can work in with other products or mix in master-batch form.。