【摘要】 综述了不饱和聚酯树脂(UP)的稳定化机理。由于UP光稳定性的制约,限制了其应用范围,添加适宜的稳定剂可明显改进其光稳定性,从而可用于户外。介绍了一些抗氧剂、紫外线吸收剂、受阻胺光稳定剂(HALS)。试验表明,只使用单一的稳定剂效果不佳,必须将主抗氧剂,副抗氧剂和其他添加剂(例如:某些环氧化合物)并用,才能取得较好的稳定效果。更多还原

【Abstract】 In this paper,the stabilization mechanism of unsaturated polyester resin was reviewed. Its application range was limited because of its stability but its light stability was obviously modified by adding proper stabilizer so that it could be used out door.Some antioxidant,UV adsorbent,hindered amine light sabilizer (HALS) were also introduced. The test showed that the effect by using single stabilizer was not perfect but the perfect effect could be gained by using major antioxidant with secondary antioxidant and other additions together.更多还原