...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS applied materials & interfaces >Strong and Optically Transparent Films Prepared Using Cellulosic Solid Residue Recovered from Cellulose Nanocrystals Production Waste Stream
【24h】

Strong and Optically Transparent Films Prepared Using Cellulosic Solid Residue Recovered from Cellulose Nanocrystals Production Waste Stream

机译：从纤维素纳米晶体生产废水中回收利用纤维素固体残留物制备的坚固且光学透明的薄膜

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We used a new cellulosic material, cellulosic solid residue (CSR), to produce cellulose nanofibrils (CNF) for potential high value applications. Cellulose nanofibrils (CNF) were produced from CSR recovered from the hydrolysates (waste stream) of acid hydrolysis of a bleached Eucalyptus kraft pulp (BEP) to produce nanocrystals (CNC). Acid hydrolysis greatly facilitated homogenization to fibrillate CSR to CNF with only 15 passes in a microfiuidizer compared with at least 47 passes to fibrillate BEP to nanofibrils. CNF from CSR were nanowhiskers with a length between 50 and 400 nm and a diameter 3-10 nm with limited aggregation while CNF from BEP were entangled networks of nanofibrils with a length of 500-1000 nm and a diameter of 10-50 nm. CNFs from CSR had good spectral transparency from UV to infrared, i.e, transmittance of CNF-CSR suspensions at 0.1% solids consistency is greater than 90% at wavelengths greater than 340 nm, compared with less than 30% for CNF suspension produced from BEP. Specific tensile strength and modulus of CNF films from CSRs reached 75 kNm/kg and 12 MN-m/kg, respectively, approximately 175% of the respective values for conventional paper made of refined BEP.
机译：我们使用一种新型的纤维素材料，即纤维素固体残留物（CSR），来生产纤维素纳米原纤维（CNF），用于潜在的高价值应用。纤维素纳米原纤维（CNF）是由从漂白的桉木牛皮纸浆（BEP）进行酸水解的水解产物（废料流）中回收的CSR生产的，以生产纳米晶体（CNC）。酸水解极大地促进了均质化，以使CSR原纤化为CNF，而在微流体化器中只有15遍，而将BEP原纤化为纳米原纤则至少进行了47遍。来自CSR的CNF是纳米晶须，其长度在50至400nm之间，直径为3-10nm，具有有限的聚集，而来自BEP的CNF是纳米纤维的缠结网络，其长度为500-1000nm，直径为10-50nm。 CSR的CNF具有从紫外线到红外的良好光谱透明性，即CNF-CSR悬浮液在0.1％固体浓度下的透射率在大于340 nm的波长下大于90％，而BEP生产的CNF悬浮液的透射率不到30％。来自CSR的CNF薄膜的比拉伸强度和模量分别达到75 kNm / kg和12 MN-m / kg，大约是精制BEP制成的常规纸的相应值的175％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号