摘要
对N-甲基吗啉-N-氧化物(简写为NMMO)工艺纤维素薄膜的制备工艺做了简要描述,并对该工艺法成膜的强度性能的影响因素进行了研究,以期为优化NMMO工艺纤维素薄膜的制膜工艺、提高薄膜的强度性能提供理论基础.实验结果表明:随着铸膜液浓度由6%增加到10%,薄膜的拉伸强度从1.43 MPa提高到了13.25 MPa,断裂伸长率也从27.2%提高到了46.0%;随着溶解温度从100℃升高到120℃,薄膜的拉伸强度从1.71 MPa下降到1.33 MPa,断裂伸长率从32.7%下降到24.4%;随着刮膜速度从1 m/min增大到3 m/min,薄膜的拉伸强度从1.43 MPa提高到7.54 MPa,断裂伸长率由27.2%增长到40.1%;随着凝固浴温度从10℃升高到30℃,薄膜拉伸强度从2.23 MPa降低到1.3 MPa,断裂伸长率由38%下降到22.7%.
First of all, this article makes simple description on the membrane formation Technology of the Cellulose Membrane Prepared by NMMO Technology and its advantage comparable with the tradition technology. And what＇s more, we make a detailed analysis on the influencing factors on the strength properties of the cellulose membranes prepared by NMMO technology. The research can provide theory basement for optimize technology and enhance strength ability of the Cellulose Membrane Prepared by NMMO Technology. The results show that with the date of concentration of cellulose from 6% adds up to 10%, the date of tensile strength from 1.43 MPa adds up to 13.25 MPa, and the date of elongation from 27. 2% adds up to 46.0% ,with the date of temperature of dissolving from 100 ℃ adds up to 120 ℃ ,the date of tensile strength decreases from 1.71 MPa to 1.33 MPa, and the date of elon- gation decreases from 32.7% to 24. 4%, with the date of casting speed increases from 1 m/ min to 3 m/min,the date of tensile strength increases from 1.43 MPa to 7.54 MPa, and the elongation increases from 27.2% to 40. 1% ,and with the date of temperature of coagulation bath increases from 10 ℃ to 30℃ , the date of tensile strength decreases from 2.23 MPa to 1.3 MPa, and the date of elongation decreases from 38% to 22. 7%.
出处
《陕西科技大学学报（自然科学版）》
2008年第1期30-33,共4页
Journal of Shaanxi University of Science & Technology
基金
陕西省自然科学基金项目(2007E117)
广东省科技计划项目(2003C103016)
华南理工大学制浆造纸工程国家重点实验室研究基金项目(0210)
作者简介
李新平（1965-），男，陕西省西安市人，教授，博士，博士生导师，研究方向：低污染制浆技术、植物纤维资源化学、造纸湿部化学及化学品
