针对国内包装用溶剂型聚氨酯复膜胶综合成本高,易挥发有毒有害物质的问题提出环保型水性聚氨酯(WPU)复膜胶的制备,并通过纳米二氧化硅对其改性。结果表明,纳米二氧化硅对复膜胶力学和热稳定性能产生积极作用,6%二氧化硅综合性能表现最...针对国内包装用溶剂型聚氨酯复膜胶综合成本高,易挥发有毒有害物质的问题提出环保型水性聚氨酯(WPU)复膜胶的制备,并通过纳米二氧化硅对其改性。结果表明,纳米二氧化硅对复膜胶力学和热稳定性能产生积极作用,6%二氧化硅综合性能表现最佳。此时,WPU复膜胶粘断裂伸长率为472%,拉伸强度为23.5 MPa,度为116.3 c P,WPU/BOPET薄膜剥离强度为0.58 N/cm,最大分解速率对应的温度为398℃,具有一定可见光透过率,有望作为复膜胶在高端商品软包装得到应用。展开更多
The synthesis method to make a kind of polyurethane soft plastics by water and dichloromethane as the foaming agent, organic tin and ammonine as the catalyst, organic silicone as a stabilizer were investigated. A tech...The synthesis method to make a kind of polyurethane soft plastics by water and dichloromethane as the foaming agent, organic tin and ammonine as the catalyst, organic silicone as a stabilizer were investigated. A technological way to make polyurethane soft plastics is proposed by means of repetitious experiments.展开更多
文摘针对国内包装用溶剂型聚氨酯复膜胶综合成本高,易挥发有毒有害物质的问题提出环保型水性聚氨酯(WPU)复膜胶的制备,并通过纳米二氧化硅对其改性。结果表明,纳米二氧化硅对复膜胶力学和热稳定性能产生积极作用,6%二氧化硅综合性能表现最佳。此时,WPU复膜胶粘断裂伸长率为472%,拉伸强度为23.5 MPa,度为116.3 c P,WPU/BOPET薄膜剥离强度为0.58 N/cm,最大分解速率对应的温度为398℃,具有一定可见光透过率,有望作为复膜胶在高端商品软包装得到应用。
文摘The synthesis method to make a kind of polyurethane soft plastics by water and dichloromethane as the foaming agent, organic tin and ammonine as the catalyst, organic silicone as a stabilizer were investigated. A technological way to make polyurethane soft plastics is proposed by means of repetitious experiments.
