丁基胶、硅酮胶、硅酮结构胶的区别（The difference between butyl rubber, silicone rubber, silicone rubber structure.）Butyl rubber, silicone rubber, silicone structural adhesive newsThe performance of sealant directly affects the energy-saving effect and service life of insulating glass. At present, the most used sealants for insulating glass in China are silicone sealant and polysulfide sealant. These two kinds of sealants in the use of performance differences, such as silicone rubber and polysulfide rubber than the water vapor permeability is low, silicone rubber is more flexible than poly sulfur colloid and has good elastic recovery, which is a hollow glass industry consensus. However, there is no basic data available for reference on the sealing performance, aging resistance and inert gas holding capacity of two kinds of sealants. Especially in the production of spacer bending type double sealing hollow glass, polysulfide rubber with low moisture permeability can make nothing of it affects the performance of silicone rubber insulating glass, the insulating glass production enterprises in the selection of sealant, fuzzy concept, can not accurately judge.In order to silicone sealant and the difference in performance of polysulfide sealant has a deep understanding, provide help and guidance for the future use of the two and improve the performance, so the performance of in-depth and systematic test and comparison is very necessary.First, performance comparison schemeIn order to scientifically, fairly and accurately test and compare the performance differences between silicone sealant and polysulfide sealant, we have developed the following sampling and testing scheme:1. sampling methods: the production of large scale, in the industry have a certain visibility of the insulating glass sealant production enterprises in the times of test, including silicone sealant and polysulfide sealant production enterprises 5. Silicone rubber production enterprises are Chengdu Guibao science and Technology Co. Ltd., Zhengzhou Zhongyuan Applied Technology Co. Ltd., Hangzhou Zhijiang Chemical Co. Ltd., Guangzhou Baiyun Chemical Co. Ltd., Hangzhou Lingzhi Fine Chemical Co. Ltd., polysulfide rubber production enterprises respectively, Zhengzhou Zhongyuan Applied Technology Co. Ltd., Hangzhou Zhijiang Chemical Co., Ltd. Beijing excellent sealant Co., idall Keke Merlin (Nanjing) new material Co., Ltd. Zhejiang Finch paint sealant. By the National Glass Quality Supervision and inspection center responsible for sampling, in the enterprise finished product warehouse randomly selected enterprise self-test qualified products, each enterprise to extract a model sample of 25 kg. The sample sent to Qinhuangdao National Glass Quality Supervision and inspection center.2. hollow glass sample: glass by the national quality supervision and inspection center with a large hollow glass production enterprises, the staff of the national quality inspection center glass on-site supervision, with samples from the production of pipe sealant aluminum inflatable insulating glass, wherein each polysulfide rubber samples into a set of inflatable hollow glass specimen 10 blocks. Each sample is made of silicone rubber insulating glass specimen two groups (a group of samples, with the same polysulfide rubber layer thickness of another group of specimens than polysulfide rubber adhesive thickness 2mm) 10 block.3. testing items:1) durability test of high temperature and humidity: according to the test method specified in GB/T11944-2002 insulating glass, the dew point test is carried out after testing;2) durability test of water vapor seal: test method according to EN 1279.2 building insulating glass and new national standard;3) gas seal durability test: Test and analysis method with oxygen argon content, first detected initial argon content of hollow glass samples, then the samples were sealed, according to the new national standard of aging test, after test of argon content detection;4) water vapor permeability test: according to JC486-2001 elastic sealant for insulating glass method.Two. Making of insulating glass sampleAll sealant samples to the National Glass Quality Supervision and inspection center, we contact in the glass deep-processing industry has a good reputation of Qinhuangdao Yaohua industrial technology glass factory for insulating glass sample production. In the production process, in addition to sealant, hollow glass samples using lisek 9mm aluminum bending type, joints sealed with butyl rubber, in two adjacent sides (a long side short side) Wuxi Kayseri automatic filling of 3A molecular sieve,In the LGF butyl rubber sealant, tablets in automatic production line complete lisek. Each kind of polysulfide rubber samples making 10 pieces, externalists sealant thickness at 3mm (the aluminum outer edge to the edge of the glass), each producing two externalists silicone rubber sealant thickness (3mm and 5m