MS密封膠與甲基硅油在不同溫度下的溶度參數差值

發布時間 : 2024-9-11 11:02:35
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.

MS密封膠與甲基硅油在不同溫度下的溶度參數差值

(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 : 2024-9-11 11:02:35
Views:

常溫下白油、甲基硅油、MS密封膠溶度參數的模擬值。由表4可見，溶度參數模擬值分別為飾油一16.924(J/cm;)"z己甲剔油一12.348(J/cmi)i一z(J/cm>cSjznt一12.638(J/cm;)"z，溶度參數差值分別為一△己I-HAl一4.286(J/cm;)"z,一△己一膠-膠-0.290(J/cm;)"z。因此，依據溶度參數相近原則及一△引G1.3-2.1(J/cm;)"z判斷，脫酮脂型MS密封膠與白油的相容性較差，脫酮脂型MS密封膠與甲基硅油具有更好的相容性。為考察溫度對MS密封膠與增塑劑分子間相容性的影響，進一步計算了白油、甲基硅油、脫酮脂型MS密封膠在318K338K358K378K溫度下的溶度參數。圖8為MS密封膠與白油、脫酮脂型MS密封膠與甲基硅油在不同溫度下的溶度參數差值。由圖可見，隨著溫度的升高，脫酮脂型MS密封膠與白油、甲基硅油間的一△引值均變化不大，這說明溫度對其溶度參數的影響不大;此外，在相同溫度下MS密封膠與白油間的溶度參數差值均大于MS密封膠與甲基硅油，這也說明甲基硅油與MS密封膠間的相容性要始終優于白油。混溶性模擬分析在BlendsTools中對MS密封膠與增塑劑進行混溶性模擬，預估混合相行為。將脫酮脂型MS密封膠分子定義為base基體，增塑劑白油、甲基硅油分子定義為screen配體，分別計算得到共混物分子間結合能(Ei,a>>混合能(Em,x)和X值。圖9為MS密封膠/白油、MS密封膠/甲基硅油共混體系的結合能分布曲線，圖中包括EE這3條曲線。當共混物間的E曲線分布越相似時，體系混合能越小，表明體系間組分可混合性越好，相容性越好從結合能分布曲線圖中可以看出，甲基硅油的計算結果更類似于MS密封膠，3條曲線分布非常接近，這是一個很好的指標，表明兩種物質將容易混溶。相比之下，白油相互作用與MS密封膠差距較大，表明二者混溶性較差。http://www.qiquanonline.com/

Scan the QR code to read on your phone

上一篇: 研究以白油體系丁基防水嵌縫膠/白油共混體系為例

下一篇: 硅烷改性聚氨酯密封膠體系中甲基硅油比白油具有更好的相容性

上一篇: 研究以白油體系丁基防水嵌縫膠/白油共混體系為例

下一篇: 硅烷改性聚氨酯密封膠體系中甲基硅油比白油具有更好的相容性