摘要
采用Basell双环管工艺进行了烟膜专用料的生产,生产过程中通过对氢气进料量控制、三乙基铝与外给电子体的质量比控制、挤压机操作参数控制及助剂配方优化,开发生产了烟膜专用料T38FY。产品熔体流动速率控制在2.8～3.2g/10 min,等规指数为96.5%～97.5%,弯曲模量达到30 MPa,满足用户的要求。但采用现有的催化剂体系和助剂配方,其产品灰分为300μg/g,雾度为15%,均比目标值高。下一步需要提高催化剂活性,降低催化剂消耗,并采用高效助剂体系,降低产品灰分,提高产品光学性能。
The special resin of T38FY for tobacco film was developed and produced with Basell Sphripol-Ⅱprocess by the feed of hydrogen adjusted,mass of triethylaluminum and the external electronic donor controlled,the extruder operating parameters and additives formula optimized.Melt flow rate of the special resin is 2.8-3.2g/10 min,isotactic indexof 96.5%-97.5%,flexural modulus up to 30 MPa,to the satisfaction of requirements of customers.The existing catalyst system and additive formula are resulted in the ash of 300μg/g and haze of 15%,that is higher than the norms.In order to improve the transparence, reduce consumption of the catalyst and the ash,high activation catalyst and high efficiency additives should be applied.
出处
《石化技术》
CAS
2011年第4期33-36,共4页
Petrochemical Industry Technology
