Bhardwaj Shubhang, Bhardwaj Nishi Kant, Negi Yuvraj Singh
Avantha Centre for Industrial Research & Development (ACIRD), Paper Mill Campus, Yamuna Nagar, 135001, Haryana, India; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee (IITR), Saharanpur Campus, Saharanpur, 247001, Uttar Pradesh, India.
Avantha Centre for Industrial Research & Development (ACIRD), Paper Mill Campus, Yamuna Nagar, 135001, Haryana, India.
Carbohydr Polym. 2021 Oct 1;269:117674. doi: 10.1016/j.carbpol.2021.117674. Epub 2021 Jan 21.
Chitosan is a renewable biopolymer which can be applied on the surface of writing and printing (W&P) grade paper to enhance its different properties. A variety of chitosan is available based on degree of acetylation (DA), molecular weight, viscosity, etc. DA has a profound effect on the performance of chitosan in many applications. Present study compared the performance of different DA chitosan for surface application of W&P grade paper. Chitosan samples of 23 %, 16 % and 6% DA were studied for their impact on various physical and surface properties of W&P grade paper. Surface coating of chitosan was done at 1.6 ± 0.2 g/m (lower dose) and 2.3 ± 0.3 g/m (higher dose) on W&P grade paper. Some properties including air permeance, TEA, showed considerable effect of DA in which high DA chitosan outperformed the low DA. Broadly, chitosan with different DA had varied impact on individual properties of paper.
壳聚糖是一种可再生生物聚合物，可应用于书写和印刷（W&P）级纸张表面以增强其不同性能。基于乙酰化程度（DA）、分子量、粘度等，有多种壳聚糖可供选择。DA在许多应用中对壳聚糖的性能有深远影响。本研究比较了不同DA壳聚糖在W&P级纸张表面应用的性能。研究了DA为23%、16%和6%的壳聚糖样品对W&P级纸张各种物理和表面性能的影响。壳聚糖在W&P级纸张上的表面涂布剂量为1.6±0.2 g/m²（低剂量）和2.3±0.3 g/m²（高剂量）。包括透气度、TEA在内的一些性能显示出DA有显著影响，其中高DA壳聚糖的表现优于低DA壳聚糖。总体而言，不同DA的壳聚糖对纸张的各项性能有不同影响。
