以纤维素为原料,以N-甲基吗啉-N-氧化物(NMMO)为溶剂,以甘油为增塑剂制取天然纯纤维素包装膜,研究了纤维素原料和纤维素浓度对薄膜透油性和热收缩性能的影响。结果表明:以棉浆为原料制得的天然纤维素膜的阻油性优于木浆和苇浆,其热收缩性能比木浆和苇浆略大。棉浆纤维素浓度从5%增加到7%时,天然纤维素膜的透油系数降低了7.6%,但对薄膜的热收缩性能影响不是很明显。 Using cellulose as raw material and N-methylmorpholine-N-oxide (NMMO) as solvent, natural pure cellulose packaging film was prepared with glycerin as plasticizer. The effect of cellulose raw material and cellulose concentration on the film Oil permeability and thermal shrinkage properties. The results showed that the natural oil-based cellulose membrane prepared from cotton pulp had better oil resistance than wood pulp and reed pulp, and its thermal shrinkage properties were slightly larger than that of wood pulp and reed pulp. When the concentration of cotton fiber increased from 5% to 7%, the oil permeability of natural cellulose film decreased by 7.6%, but the effect of thermal shrinkage was not obvious.