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Research On Nano-modified Stone Historic Relics Protective Materials

Posted on:2009-10-30Degree:MasterType:Thesis
Country:ChinaCandidate:Z Z ZhuFull Text:PDF
GTID:2178360272477327Subject:Applied Chemistry
Abstract/Summary:PDF Full Text Request
Stone historical relics, such as stone tools of the Stone Age, rock caves, statues, stone tablets and engravings relics, are the glorious culture of China. One of the most notable characters of these cultural heritages and tour resources is that they are non-renewable. But as years gone, stone historical relics in the world have been suffered from lots of damages, concluding long-time exposure in the sunshine, gale, heavy rain and snow. All have caused the stone cracking to powder. The results are the characters of tablet are fuzzy, the outline of statues are unclear and so on. So the stone historical relics, glorious culture of our country, needs for the conservation urgently.Conservation of the stone historical relics mainly includes the following three steps: cleanout, reinforcement and seal. Among them the step of seal is the essential one. It determines the validity and the permanence of conservation.This paper studies F-Si-C copolymer seal materials and the FEVE fluorocarbon resins ,Which are two types of polymer seal materials.This paper studied fluorine resin and silicone resin, acrylic copolymer——F-Si-C seal materials, discussed reaction temperature,amount of monomer ratio,the amount of initiator on the impact of synthetic resin in the process of synthesis, and orthogonal test the performance of the optimal F - Si - C seal materials, and compared with FEVE seal materials . Also Through putting three different types of FEVE fluorine resin prepare certain concentration , then brushing them on the stone sample,and testing water absorption,hydrophobic,acid,alkali,and salt aging,anti-oil pollution of performance.In addition, selection,testing,modification functional nano-materials, through in situ polymerization nano particles will be uniformly dispersed in the seal system. Separately incorporation to FEVE fluorocarbon resins and F- Si - C seal material for performance comparison.Through analysis and comparison, the two materials can remarkably enhance the hydrophobicity of stone and anti-aging, and maintain the original permeability, has excellent surface seal properties and good re-protection value,application prospects in stone historical relics conservation.The addition of nano-F- Si - C seal material has better performance.
Keywords/Search Tags:stone historical relics, conservation, seal materials, FEVE resin, F-Si-C copolymer, nanomaterial
PDF Full Text Request
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