UV-328 / Tinuvin 328 / Eversorb 74 CAS 25973-55-1

产品名称: 紫外线吸收器 UV-328

化学名称2-(2H-苯并三唑-2-基)-4,6-二叔戊基苯酚

同义词:Eversorb 74;GSTAB 328;Tinuvin 328

Cas No.

MF: C22H29N3O

纯度:≥99%(HPLC)

分类:

UV-328 Application scenarios

1. Polyolefin Products:

Used in polyethylene (PE), polypropylene (PP), etc., such as films, pipes, injection molded parts, and fibers, to prevent photoaging, yellowing, and embrittlement, extending outdoor service life.

2. Polyvinyl Chloride (PVC) Products:

Suitable for rigid and flexible PVC, such as building profiles, pipes, films, and cable sheaths, improving weather resistance and inhibiting degradation and performance decline caused by ultraviolet radiation.

3. Engineering Plastics and General-Purpose Plastics:

Applicable to polystyrene (PS), ABS resin, polycarbonate (PC), polyesters, unsaturated resins, polyamide (PA), etc., preventing discoloration and cracking, and maintaining mechanical properties and appearance stability.

4.涂料和油墨:

Added to automotive coatings, industrial coatings, wood coatings, and printing inks to prevent coating gloss loss, chalking, and blistering, enhancing outdoor durability and extending coating service life.

5. Adhesives and Sealants:

Used in various adhesives and sealing materials to improve their weather resistance and prevent UV-induced reduction in bonding strength and aging degradation.

6. Polyurethane (PU) Products:

Applied to thermoplastic polyurethane, PU foam, synthetic leather, etc., preventing yellowing and aging, and maintaining elasticity and appearance texture.

7. Rubber Products:

Used in natural rubber and synthetic rubber, such as rubber seals, conveyor belts, and outdoor rubber products, to delay photoaging and extend service life.

8. Textiles and Leather:

Used in the finishing of textiles and leather, providing fabrics and leather with UV resistance, reducing UV damage to the materials, and improving durability.

描述

UV-328 / Tinuvin 328 / Eversorb 74 CAS 25973-55-1

外观 淡黄色结晶粉末
内容 ≥99%(HPLC)
熔点 79-87℃
灰烬 ≤0.1%
挥发性 ≤0.5%
透射率 460nm≥96%,500nm≥97%

 

应用:

1.本产品是一种高效紫外线吸收器,能有效吸收波长为 270-340 纳米的紫外线。
2.光稳定性能与 UV-326 和 UV-327 相似,但该产品与树脂的相容性好、热挥发性低、耐洗刷性强。
3.主要用于聚烯烃(尤其是聚乙烯)、聚酯、苯乙烯聚合物、聚酰胺、聚甲基丙烯酸甲酯、聚碳酸酯、弹性体和其他聚合物。

建议增加

聚苯乙烯 聚乙烯 聚酯纤维 聚碳酸酯 聚氯乙烯
0.2-0.5% 0.2-0.4% 0.3-0.5% 0.15-0.3% 0.2-0.5%

 

 

 

存储:
存放在干燥、清洁、通风良好的仓库中。
避免光照和加热,以防氧化。
保护产品在运输过程中不受泄漏、雨淋和日晒的影响。

 

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