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硅膠管的優點有哪些


有機硅是眾多產品的商業名稱,但大多數由聚二甲基硅氧烷(PDMS)制成。這些聚合物的特點是共價鍵強度高,抗均裂斷鏈(有機硅具有紫外線(UV)穩定性;也具有熱穩定性和化學穩定性,所以容易滅菌)。其極性主鏈易發生異裂斷鏈,但鏈上的甲基基團可提供保護作用。

硅膠管的優點有哪些

Organosilicon is the commercial name of many products, but it is mostly made from poly two methylsiloxane (PDMS). These polymers are characterized by high covalent bond strength, anti split chain fracture chain (organosilicon with UV (UV) stability, thermal stability and chemical stability, so it is easy to sterilize). The main chain of its polar chain is liable to undergo cleavage, but the methyl group on the chain can provide protection.


因此,有機硅具有疏水性,水在聚二甲基硅氧烷(PDMS)模型表面的接觸角較高,為 108°。由于這種疏水性,在缺少表面活性劑的情況下,有機硅與水介質不發生反應,僅在強堿或強酸的環境中才會發生反應。


Therefore, silicone has hydrophobicity and water contact angle on the surface of poly two methylsiloxane (PDMS) model is 108 degrees. Because of this hydrophobicity, in the absence of surfactants, the organosilicon does not react with the water medium, only in the environment of strong alkali or strong acid.


軟管在擠出成型后包裝供應,一般為 50 英尺線圈型,單獨裝在雙層密封聚乙烯袋中。值得一提的是,由于硅氧烷具有熱固性,它們不能被再加工如同熱塑性塑料。出于同樣的原因,它們不能熱密封;因此,連接時,硅膠管套在軟管倒鉤接頭上,并用兩根扎帶從相反方向系牢,固定好軟管。共模壓成型是可行的,有時用于醫療器械領域。


The hose is supplied after extrusion, generally 50 feet coil type, and is individually installed in a double sealed polyethylene bag. It is worth mentioning that because siloxane is thermosetting, they can not be reprocessed like thermoplastics. For the same reason, they can't be hot sealed; therefore, the silica gel sleeve is attached to the hose reversal joint and is fastened in the opposite direction with two ligature bands, and the hose is fixed. Co molding is feasible and sometimes used in the field of medical devices.


硅膠管外觀和機械性能


Appearance and mechanical properties of silica gel tube


與一些有機熱塑性塑料相比,有機硅的透明度最好描述為“半透明”。這一結果是因為制作軟管的有機硅彈性體由有機硅聚合物和無定形二氧化硅組成。由于這兩種材料具有不同的折射率,并且沒有特定混合法來使它們相配,因此所有硅膠管都是半透明的。


Compared with some organic thermoplastic, the transparency of silicone is best described as "translucent". The result is that silicone elastomers for making hoses consist of silicone polymers and amorphous silica. Because the two materials have different refractive indices and there is no specific mixing method to match them, all silicone tubes are translucent.


硅膠管固化后,有機硅彈性體表現出有意義的機械性能,這包括中等硬度和高斷裂伸長率,但拉伸強度比聚氨酯(PU)低。與聚四氟乙烯(PTFE)相比,它們具有發粘的表面和較高的摩擦系數,但剛性要小得多。由于具有疏水性并且是優良的電絕緣體,所以它們會吸引灰塵。它們的工作溫度范圍比聚氯乙烯(PVC)更大。


After the silicone tube was solidified, the organosilicon elastomer showed significant mechanical properties, which included medium hardness and high elongation at break, but the tensile strength was lower than that of polyurethane (PU). Compared with polytetrafluoroethylene (PTFE), they have visbreaking surfaces and higher friction coefficient, but the rigidity is much smaller. Because they are hydrophobic and are excellent electrical insulators, they attract dust. Their working temperature range is larger than that of PVC (PVC).


  


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主營產品: 硅膠管,硅膠條,發泡硅膠管,發泡硅膠板

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