統(tǒng)計(jì)各MS密封膠的拉伸粘接強(qiáng)度變化率

發(fā)布時(shí)間 : 2025-1-22 15:41:32
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(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.

統(tǒng)計(jì)各MS密封膠的拉伸粘接強(qiáng)度變化率

(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(fā)布時(shí)間 : 2025-1-22 15:41:32
Views:

在溫度90-120℃環(huán)境下放置12個(gè)月，6個(gè)牌號(hào)MS密封膠均未出現(xiàn)粘接破壞現(xiàn)象。在溫度1500C環(huán)境中，2#,5#和6#在8個(gè)月內(nèi)未出現(xiàn)粘接破壞現(xiàn)象;1#,3#和4#分別在6,3和5個(gè)月時(shí)開(kāi)始出現(xiàn)粘接破壞現(xiàn)象，其中3#MS密封膠最差，在3個(gè)月即開(kāi)始出現(xiàn)粘接破壞現(xiàn)象。在溫度180℃環(huán)境中，所有膠在5個(gè)月時(shí)均出現(xiàn)粘接失效現(xiàn)象，無(wú)法進(jìn)行拉伸試驗(yàn)，最短7d時(shí)即有3個(gè)牌號(hào)MS密封膠出現(xiàn)粘接破壞現(xiàn)象。大部分粘接失效出現(xiàn)在玻璃界面。

統(tǒng)計(jì)各MS密封膠的拉伸粘接強(qiáng)度變化率。拉伸粘接強(qiáng)度變化率計(jì)算方法:拉伸粘接強(qiáng)度變化率=(老化后拉伸粘接強(qiáng)度/23℃拉伸粘接強(qiáng)度一1)x100%。

可知，在溫度90℃長(zhǎng)期老化至12個(gè)月過(guò)程中，6個(gè)牌號(hào)MS密封膠7d時(shí)拉伸粘接強(qiáng)度變化率均為正值，與初始相比變大。MS密封膠1#,2#放置12個(gè)月后拉伸粘接強(qiáng)度仍大于初始值，變化趨勢(shì)為先增大后減小，轉(zhuǎn)折點(diǎn)在老化6個(gè)月時(shí)。MS密封膠3#,4#在高溫2個(gè)月后拉伸粘接強(qiáng)度基本都小于初始值，并隨時(shí)間延長(zhǎng)呈現(xiàn)逐漸減小趨勢(shì)，老化12個(gè)月時(shí)衰減率在15%以上。MS密封膠5#,6#在12個(gè)月內(nèi)拉伸強(qiáng)度基本呈減小趨勢(shì)，但在6個(gè)月以?xún)?nèi)仍大于初始值。至12個(gè)月時(shí)，6個(gè)牌號(hào)MS密封膠試件未出現(xiàn)粘接破壞，強(qiáng)度變化率在一17.8%一+2.4%。http://www.www.mobmib.com/

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上一篇: 介紹彩槳的性能及其在單組分聚氨酯密封膠中上色效果

下一篇: 丁基防水嵌縫膠2#,3#在溫度150℃環(huán)境放置