漂白化学桉木浆的掺入对硅酸钙板物理性能的影响

作者：Chu Shouxing; Yang Rendang; Chen Jingfu; Wang Yang^*

来源：China Pulp and Paper, 2023, 42(2): 61-67.

DOI：10.11980/j.issn.0254-508X.2023.02.008

• bleached chemical eucalyptus pulp
• calcium silicate board
• physical property
• softwood pulp

In this paper，the effect of blending bleached chemical eucalyptus pulp in the preparation of calcium silicate board on the physical properties of calcium silicate board was studied. The results showed that compared with the blank sample（only added unbleached kraft soft? wood pulp），when 20% bleached chemical eucalyptus pulp was added instead of unbleached kraft softwood pulp，the bending strength of calci? um silicate board was 17. 3 MPa，impact strength increased from 9. 5 kJ/m2 to 10. 5 kJ/m2，interlayer bonding strength reached 1. 54 MPa. Po? rosity and water absorption reached the best balance point. In addition，the results of scanning electron microscope and fourier infrared spectros? copy analysis showed that the physical properties and micro crystal form of calcium silicate board were not significantly affected by the addition of bleached chemical eucalyptus pulp. ? 2023 China Technical Association of Paper Industry.

• 单位
  华南理工大学; 制浆造纸工程国家重点实验室