Use of a sol-gel processed polyvinyl alcohol/inorganic silica hybrid material to improve the surface strength of recycled fiber sheets

作者：Shen Yi Ding^*; Zhao Yan Na; Li Xiao Rui

来源：Tappi Journal, 2011, 10(1): 41-45.

We successfully composed a hybrid material that comprises organic polyvinyl alcohol (PVA) and inorganic silica (SiO(2)) through a sol-gel reaction with tetraethylorthosilicate (TEOS). The hybrid material was characterized using Fourier Transform Infrared (FT-IR). The chemical results indicated there were chemical bonds between SiO2 and PVA. The handsheet testing showed that folding strength, tensile strength, tearing strength, and picking velocity were increased by 22.3%, 35%, 26%, and 26%, respectively, when the hybrid material was used at a coat weight of 61 g/m(2). In addition, strength development of the hybrid increases by using an oxidized starch at a 3: 1 addition ratio.
Application: PVA/SiO(2) hybrids can improve the surface strength of recycled fiber sheets. Such hybrids are prepared by a sol-gel process.

• 出版日期2011-1
• 单位陕西科技大学