The results showed that the light stabilizer BHW1 by adding component chelating metal ion in HALS complex had better light stability and balanced performance than other HALS complex.

• 实验表明:引入金属离子螯合剂组成的复合光稳定体系BHW1在农用聚烯烃棚膜中应用效果良好,具有更为均衡的光、热稳定性能;