新型氟硅丙烯酸树脂镀膜技术在榆木类木构古建筑保护领域的应用研究

本工作以江西省赣州市大余县左拔镇云山村晚清时期的榆木木构民居建筑为保护研究对象,从新型氟硅丙烯酸树脂材料的分子设计、镀膜剂配方与涂布工艺的优化等方面入手,对该地区榆木类古建筑的镀膜保护技术进行了研究。研究结果表明,由甲基丙烯酸十二氟庚酯、γ-甲基丙烯酰氧基丙基三甲氧基硅烷与丙烯酸酯等单体的多元共聚制备得到的氟硅丙烯酸树脂镀膜剂,具有良好的耐化学腐蚀性、耐候性、疏水疏油性、抑菌、超薄、高透光性(无反光)和阻燃等综合特性。该镀膜剂可采用传统涂布工艺,涂布与成膜过程无有毒有害物质排放,可实现对木质材料纤维微结构表面的有效包覆,在不改变榆木类木构古建筑外观的情况下,实现对榆木类木构古建筑的有效保护。

Study of the new fluorosilicone acrylic resin coating technology and its application to the protection of ancient elm wood buildings

In this paper, the late Qing elm wood residential buildings at Yunshan Village, Zuoba Town, Dayu County of Ganzhou, Jiangxi Province were utilized as research objects for protection studies. The coating technology for the ancient elm wood buildings in this area was studied in terms of molecular design of new fluorosilicone acrylic resin materials, coating agent formula and coating process optimization. The results show that the fluorosilicone acrylic resin coating agents prepared by multi-component copolymerization of monomers such as dodecafluoroheptyl methacrylate, 3-methacryloxypropyltrimethoxysilane and other acrylates have good chemical corrosion and weather resistance, hydrophobic and oleophobic properties, bacteriostatic activity, ultra-thinness, high light transmittance (no reflection) and flame retardancy. Traditional coating processes can be adopted for the coating agents, and coating and film-forming processes do not emit toxic and harmful substances. These materials can effectively coat the surface of the wood material fiber microstructure, and also effectively protect the elm wood structures of ancient buildings without changing their appearance.