Progress on Modified Polyurethane for Preservation of Paper Cultural Relic
Paper cultural relics have extremely high value in research and collection. However, as the time goes on and the environment changes, there will be unfavorable conditions on paper relics, like yellowing, moulding, chalking, aging and embrittlement to some extent. Nowadays, the protection and repair of paper cultural relics are the research emphasis in the field of relics protection. The modified Polyurethane (PU) is an effective material for protecting paper cultural relics and overcome the disadvantages of traditional PU material, including poor polar-solvent resistance and poor heat resistance. Therefore, in this article, the synthesis, properties, applications of modified PU material were summarized and prospects for the research development in the future were look forward.
GAO Nian, ZOU lu-si, GUAN Rong. Advance in Silicone-modified Polyurethane[J]. Chinese Journal of Colloid & Polymer,2016,34(03):137-140.
Gao Lijun, Cao Youming. Study on preparation and properties of polyurethane adhesive modified by nano-SiO2[J]. China Adhesives,2013,22(04):42-46.
Gao Yanfei. Study on nano-SiO2 modified polyurethane adhesive for paper/plastic laminating[J]. China Adhesives,2015,24(02):41-44.
Li Zhihua, Li Juren. IR Analysis in Water-borne Polyurethane Modified with Acrylic Resin[J].Acta Sci Nat Univ Norm Hunan,1998(03):56-60.
Li Zhihua, Li Juren.DSC Analysis in Water-Borne Polyurethane Modified with Acrylic Resin[J].Acta Sci Nat Univ Norm Hunan,1999(03):68-72.
LI Zhihua, REN Dongyan, WU Huayuan. Research on Structure and Characterization of Water-borne Polyurethane Modified with Acrylic Resin[J]. Jiangsu Chemical Industry,2005(06):35-38+42.
ZHENG Fei. Preparation and Study on Epoxy-Modified Waterborne Polyurethane[J]. Polyurethane Industry,2016,31(06):51-53.
ZHANG Hao, XIN Changzheng, LI Shunwen, TONG Ruifang.UV-Aging Resistance of Waterborne Polyurethane Modified by Nanocrystalline Cellulose[J].Polyurethane Industry,2016,31(05):14-17.
Yang Lu. Study on the Light-aging Modification of Relics Conservation Organic Polymer Materials.[D].North-East University, 2006.