您現在的位置: 首頁 >> 新聞中心 >> 公司新聞

              推薦新聞

              耐高溫硅烷改性聚氨酯密封膠的技術路線

              • 發布時間 : 2024-9-29 10:20:18
              • Views:

              (Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

              耐高溫硅烷改性聚氨酯密封膠的技術路線

              (Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.

              • 發布時間 : 2024-9-29 10:20:18
              • Views:
              Information

                     脫醇型硅烷改性聚氨酯密封膠,對金屬無腐蝕性,又可快速固化,廣泛用于電子電器行業。TSE-3976-B商品,在300℃高溫下加熱1周后,仍保持良好的彈性,通常作為特殊用途的電子束窗框耐熱密封膠。

                     在開發耐熱性硅烷改性聚氨酯密封膠時,較細地分析了影響熱穩定性的各種可能因素,致力于消除預聚體和填充劑中雜質的影響,在比較交聯劑水解反應活化能的基礎上,確定選用脫丙酮型單組分耐高溫硅烷改性聚氨酯密封膠的技術路線。從反應中可以看出,使用高反應活性的異丙烯氧基硅烷作為交聯劑,它對硅經基尤為敏感。因此,在不使用有機金屬化合物的條件下,也可以快速固化。固化后的彈性體內,不含活潑氫和硅經基基團,只有少許丙酮。這樣就徹底根除了影響硅酮膠主鏈斷裂的隱患,從而保證此類新膠種在300℃高溫下可以長期使用,并保持良好的彈性和電性能。改性硅烷改性聚氨酯密封膠各國同行根據各自的國情和市場需求,不斷地開發新的膠種,F將各種彈性密封膠在日本國產化時間列入表2中。

                     如前所述,硅烷改性聚氨酯密封膠具有諸多長處,但仍存在某些不足。如表面可涂性,對石材周邊的影響,移動接縫欠隨服性等新課題正在逐步被突破。迄今,已形成規;a的新膠種,當屬用硅烷封端的聚醚型基礎聚合物配制而成產品,其基礎聚合物的化學組成為:CH3(CH30)2SiC3H6--(CHCH2OC3H6S(OCH3)2C H3CH3它是由日本鐘淵化學工業公司(現名Kaneka公司)于1976年研發成功,三年后以商品名為((MS Polymer》開始投放市場。用它配成的密封膠,在日本被稱為“改性硅烷改性聚氨酯密封膠”。http://www.caffertyclinic.com/

              Scan the QR code to read on your phone

              imgboxbg

              版權: © 2021  山東元泰新材料有限公司 

              魯ICP備2021029041號-1  

               

              搜索
              国产高清日韩精品欧美激情| 97视频在线观看这里只有精品| 国产精品嫩草影院一二三区入口| 巨大黑人极品VIDEOS精品 | 99久久精品国产一区二区三区 | 蜜臀久久99精品久久久久久小说| 欧美亚洲国产激情| 精品无码三级在线观看视频| 久久久久四虎国产精品| 国产成人精品午夜福利| 国内精品久久久久久久97牛牛| 日韩精品无码中文字幕一区二区| 国产精品无码a∨精品| 91精品国产人成网站| 999成人精品视频在线| 97精品在线播放| 先锋影音国产一区| 国产精品久久波多野结衣| 久久精品国产黑森林| 老司机67194精品线观看| 91精品久久久久久无码| 六月婷婷导航福利在线| 日本电影a级二区| 国产福利91精品一区二区三区| 久99久无码精品视频免费播放| 老司机67194精品线观看| 国产伦精品一区二区免费| 国产高清在线精品一本大道| 亚洲无码日韩精品第一页| 亚洲精品99久久久久中文字幕| 久久91精品综合国产首页| 亚洲日韩国产AV无码无码精品| 国产999精品久久久久久| 视频在线不卡免费观看| 国产精品一二区| 四库影院永久四虎精品国产 | 国产成人亚洲精品播放器下载| 久久成人影院精品777| 久久精品免费一区二区三区| 亚洲国产成人a精品不卡在线| 3D动漫精品一区二区三区|