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  • 硅胶与硅橡胶的区别:
  • 本站编辑:杭州孚安保温材料有限公司发布日期:2019-10-21 21:25 浏览次数:

硅橡胶的应用已经很广泛了,但对硅橡胶和硅胶的理解及区分上,可能会有人不了解,叫法也不固定。今天小编在这里详细介绍硅胶和硅橡胶的区别和分类。目前“硅胶”这个词的概念还不规范,因到目前止还没有国家明文规定的叫法。当我们听到“硅胶”这个词的时候一定要理解是二氧化硅还是含硅合成橡胶,或者说到底是无机硅胶还是有机硅胶。

Silicone rubber has been widely used, but there may be some people who do not understand and call it not fixed on the understanding and distinction between silicone rubber and silicone rubber. Today Xiaobian introduces the difference and classification of silica gel and silicone rubber in detail here. At present, the concept of "silica gel" is not standardized, because up to now, there is no national explicit term. When we hear the word "silica gel", we must understand whether it is silica or silicone containing synthetic rubber, or in the final analysis whether it is inorganic silica or organic silica gel.

“硅胶”叫法有几个相关的词:硅橡胶,矽胶,矽利康。硅橡胶和硅胶的关系,硅胶区别而又包含硅橡胶,硅橡胶是“硅胶” 里面的有机“硅胶”。“矽胶”是港台的说法,在中国大陆叫“硅胶”,矽胶和矽利康是英文silicone的音译, 我们通常说它也就是指“硅胶”。

"Silica gel" has several related words: silicone rubber, silicone rubber, silicon Likang. The relationship between silicone rubber and silica gel. Silica gel is different but contains silicone rubber. Silicone rubber is the organic "silica gel" in "silica gel". "Silica gel" is a Hong Kong and Taiwan term. It's called "silica gel" in mainland China. Silica gel and silicone are transliteration of silicone in English. We usually call it "silica gel".

硅胶在医疗的应用

Application of silica gel in medical treatment

综上所述,硅胶按其性质及组分可分为 有机硅胶和无机硅胶两大类。

In conclusion, silica gel can be divided into organic silica gel and inorganic silica gel according to its properties and components.

先说说硅橡胶

Let's talk about silicone rubber.

一、硅橡胶的性能技术参数

I. performance and technical parameters of silicone rubber

硅橡胶是有机硅产品中产量最大、应用最为广泛的一大类产品。硅橡胶硫化后具有优异的耐高、低温、耐候性、憎水、电气绝缘性、生理惰性等特点。

Silicone rubber is one of the largest and most widely used silicone products. After vulcanization, silicone rubber has excellent characteristics of high and low temperature resistance, weather resistance, hydrophobicity, electrical insulation, physiological inertia and so on.

硅橡胶制品的主要性能及应用:硅橡胶按其硫化温度,可分为高温(加热)硫化型及和室温硫化型两大类,高温胶主要用于制造各种硅橡胶制品,而室温胶则主要是作为粘接剂、灌封材料或模具使用。

Main properties and application of silicone rubber products: according to its curing temperature, silicone rubber can be divided into high temperature (heating) curing type and room temperature curing type. High temperature rubber is mainly used for manufacturing various silicone rubber products, while room temperature rubber is mainly used as adhesive, potting material or mold.

热硫化硅橡胶(HTV)

Hot vulcanized silicone rubber (HTV)

热硫化硅橡胶(HTV)是有机硅产品中最重要的一类,甲基乙烯基硅橡胶(VMQ)是HTV中最主要的品种,俗称高温胶。 甲基乙烯基硅橡胶(生胶)是无色、无臭、无毒、无机械杂质的胶状物,生胶按需要加入适当的补强剂、结构控制剂、硫化剂等助剂一起混炼,然后升温模压成型或挤出成型,再经二段硫化做成各种制品。其制品具有优良的电绝缘性,抗电弧、电晕、电火花能力强,防水、防潮、抗冲击力、抗震性好,具有生理惰性,透气性等性能。 主要用于航空、仪表、电子电器、航海、冶金、机械、汽车、医疗卫生等部门,可做各种形状的密封圈、垫片、管、电缆,也可做人体器官、血管、透气膜以及橡胶模具,精密铸造的脱模剂等。

Hot vulcanized silicone rubber (HTV) is the most important type of silicone products, and methyl vinyl silicone rubber (VMQ) is the most important type of HTV, commonly known as high temperature rubber. Methyl vinyl silicone rubber (raw rubber) is a colourless, odorless, nontoxic, and mechanical impurity free rubber. Raw rubber is mixed with appropriate reinforcing agent, structural control agent, curing agent and other additives as required, and then heated, molded or extruded, and then made into various products through secondary vulcanization. Its products have excellent electrical insulation, arc resistance, corona, spark resistance, water-proof, moisture-proof, impact resistance, earthquake resistance, physiological inertia, air permeability and other properties. It is mainly used in aviation, instrument, electronic and electrical equipment, navigation, metallurgy, machinery, automobile, medical and health departments. It can be used as sealing ring, gasket, pipe, cable of various shapes, as well as human organ, blood vessel, ventilating film, rubber mold, mold release agent of precision casting, etc.

室温硫化硅橡胶(RTV)

Room temperature vulcanized silicone rubber (RTV)

室温硫化硅橡胶一般包括缩合型和加成型两大类。 加成型室温胶是以具有乙烯基的线性聚硅氧烷为基础胶,以含氢硅氧烷为交联剂,在催化剂存在下于室温至中温下发生交联反应而成为弹性体。它具有良好的耐热性、憎水性、电绝缘性,同时由于活性端基的引入,使其具有优异的物理机械性能,尤其是在抗张强度、相对伸长和撕裂强度上有了明显的提高。它适用于多种硫化方法,如辐射硫化、过氧化物硫化及加成型硫化,广泛用于耐热、防潮、电绝缘、高强度硅橡胶制品等方面。

Room temperature vulcanized silicone rubber generally includes condensation type and addition type. The addition molding room temperature adhesive is based on the linear polysiloxane with vinyl group and the hydrosiloxane as the cross-linking agent. In the presence of catalyst, the cross-linking reaction takes place from room temperature to medium temperature and becomes the elastomer. It has good heat resistance, hydrophobicity and electrical insulation. At the same time, it has excellent physical and mechanical properties, especially in tensile strength, relative elongation and tear strength. It is suitable for many kinds of vulcanization methods, such as radiation vulcanization, peroxide vulcanization and addition molding vulcanization. It is widely used in heat-resistant, moisture-proof, electrical insulation, high-strength silicone rubber products, etc.

缩合型室温硫化硅橡胶是以硅羟基与其他活性物质之间的缩合反应为特征,于室温下即可交联成为弹性体的硅橡胶,产品分为单组份包装和双组份包装两种形式。单组分室温硫化硅橡胶(简称RTV-1胶)是缩合型液体硅橡胶中主要产品之一。通常由基础聚合物、交联剂、催化剂、填料及添加剂等配制而成。产品包装在密封软管中,使用时挤出,接触空气后能自行硫化成弹性体,使用极为方便。硫化胶能在(-60~+200℃)温度范围长期使用,具有优良的电气绝缘性能和化学稳定性,能耐水,耐臭氧,耐气候老化,对多种金属和非金属材料有良好的粘接性。主要用作各种电子元器件及电气设备的涂复,包封材料起绝缘,防潮,防震作用;作为半导体器件的表面保护材料;也可作为密封填隙料及弹性粘接剂等。

Condensation room temperature vulcanized silicone rubber is characterized by the condensation reaction between silicon hydroxyl and other active substances. It can be crosslinked into elastomer at room temperature. The products can be divided into two forms: single component packaging and two-component packaging. RTV-1 is one of the main products of condensed liquid silicone rubber. It is usually made up of basic polymer, cross-linking agent, catalyst, filler and additive. The product is packed in a sealed hose, extruded during use, and can be self vulcanized into an elastomer after contacting with air, which is extremely convenient for use. Vulcanizate can be used for a long time in the temperature range of (- 60 ~ + 200 ℃), with excellent electrical insulation performance and chemical stability, water resistance, ozone resistance, weather aging resistance, and good adhesion to a variety of metal and non-metal materials. It is mainly used for coating of various electronic components and electrical equipment, and the sealing material plays the role of insulation, moisture-proof and shockproof; it is used as the surface protection material of semiconductor devices; it can also be used as sealing filler and elastic adhesive, etc.

双组分室温硫化硅橡胶(简称RTV-2胶)使用上没有RTV-1胶方便,但其组分比例富于变化,一个品种可以得到多种规格性能的硫化制品,而且还能深度硫化,因而被广泛用于电子电器、汽车、机械、建筑、纺织、化工、轻工、印刷等行业作绝缘、封装、嵌缝、密封、防潮、抗震及制作辊筒的材料。此外,由于RTV-2具有优异的脱模性,因而作为软模材料大量用于文物、工艺品、玩具、电子电器、机械零件等的复制与制造。

The two-component RTV-2 rubber is not as convenient as RTV-1 rubber in use, but its component proportion is variable. One product can obtain vulcanized products of various specifications and properties, and can be deeply vulcanized. Therefore, it is widely used in the industries of electronics, automobile, machinery, construction, textile, chemical industry, light industry, printing, etc. for insulation, encapsulation, caulking, sealing and prevention. Damp, seismic and roller materials. In addition, because RTV-2 has excellent demoulding performance, it is widely used as soft mold material in the reproduction and manufacturing of cultural relics, handicrafts, toys, electronic appliances, mechanical parts, etc.

有机硅密封胶的典型应用场合之一是玻璃幕墙。将玻璃与铝合金框架用有机硅结构胶粘接作为外墙材料,伸缩缝则用有机硅耐候胶做防水密封。其他方面的应用还包括用于铝合金门窗和塑钢门窗的周边密封,玻璃安装及移动槽的拼缝、铆钉及固定螺丝的密封:厨房、浴室、洗手间的卫生洁具及台面、墙体、家具之间的防水密封;水族馆、天

One of the typical applications of silicone sealant is glass curtain wall. The glass and aluminum alloy frame are bonded with silicone structural adhesive as the exterior wall material, and the expansion joint is waterproof sealed with silicone weather resistant adhesive. Other applications include peripheral sealing for aluminum alloy doors and windows and plastic steel doors and windows, joint sealing for glass installation and moving trough, sealing for rivets and fixing screws, waterproof sealing between kitchen, bathroom and washroom sanitary ware and mesa, wall and furniture, aquarium and sky