Yistab UV-1是液態(tài)甲瞇類紫外線吸收劑，能有效吸收波長為240-350mm的紫外光，吸收峰為308nm，在300-330波段幾乎可以完全吸收。而聚氨酯易受到這個(gè)波段的輻射而降解。 因此，YISTAB UV-1對(duì)聚氨酯制品如軟硬發(fā)泡、彈性體、人選革、膠黏劑以及涂料都有優(yōu)異的光穩(wěn)定性能，從而直到抑制產(chǎn)品老化，增強(qiáng)色澤穩(wěn)定性，延長使用壽命的作用。

Yistab UV-1 is liquid formamidine ultraviolet absorber. The effective UV absorptivity is in the region 240-350nm. The biggest absorption peak is 308nm. It can almost entirely absorb the ultraviolet radiation in the regin 300-330nm. The polyurethane is easy to degrade due to the radiation of this wave range . So it has excellent light stability for the polyurethane products like flexible foam, rigid foam, elastomer, artificial leather, adhesive and coating etc. It prevents the aging and improves the color stability to prolong the service life of the products.