We all know that the choice of doors and windows in home decoration is very important. Because of their existence, we have a sense of security in our home. The sealing strips of doors and windows need to play an important role in waterproof, sealing and energy saving, it has the functions of sound insulation, dust prevention, antifreeze, warmth preservation, etc. At the same time, it also has strong tensile strength and good elasticity. It needs better thermal endurance and aging resistance.
At present, there are many kinds of door and window rubber steal strip materials used in the market, which are generally made of PVC, modified PVC, EPDM, elastomer sealing strips (including TPV, TPE, TPR, SEBS), silica gel and other materials, mainly used in wooden doors and windows, aluminum alloy doors and windows, plastic steel doors and windows and other architectural decoration doors and windows. The different performance of various door and window rubber steal strip materials directly determines their scope of application. Today, the editor specially summarizes several commonly used materials that are most suitable for our family.
1. Plastic PVC sealant strip
The material is cheap and easy to get, with corrosion resistance, wear resistance, combustion resistance and high mechanical strength; The disadvantage is that the plasticizer in the matching system is easy to migrate, becomes hard and brittle with the extension of time, loses elasticity, and is not resistant to aging, poor weather resistance and low temperature performance. Generally, it is a dark product. It is suitable for occasions where the light is not strong, the temperature changes little, and the weather conditions are not bad.
2. EPDM sealant strip
Excellent comprehensive performance, ozone proof, high temperature resistance, low temperature resistance, chemical resistance, resistance to various polar solutes, and low relative density. The disadvantage is that it has a large amount of expansion in general mineral oil and lubricating oil, usually dark products. The operating temperature range is-60 ~ 150℃, which is widely recognized in the industry for its excellent comprehensive performance. It can be applied to high temperature, cold, coastal areas, areas with strong ultraviolet radiation and middle-high building.
EPDM is also widely used in many door and window rubber steal strip today. The overall design is good and has been certified by many users. EPDM has a good sealing effect, when selecting, you can choose some brand manufacturers with good reputation to ensure the long-term use of products and protect our home life.
3. Thermoplastic vulcanizate sealant strip
With the flexibility and elasticity of rubber, it can be produced by plastic processing method without vulcanization, and the waste can be recycled and reused. It is a material with wide performance range. It has good heat resistance, cold resistance, low relative density, similar oil resistance and solvent resistance to neoprene, and is not very good in compression resistance, permanent deformation resistance and abrasion resistance. It can meet the requirements of various colors, and the operating temperature range is-40 ~ 150℃. Applicable to cold and middle-high building.
4. Polyurethane rubber sealing strip
It has good elasticity, excellent wear resistance, good oil resistance, wide adjustable hardness range (shore A hardness 65~80 degrees), and superior mechanical properties (tensile strength, Tensile Elongation), excellent cold resistance and chemical interwoven corrosion resistance, the price of raw materials is relatively high. Recyclable materials. It can meet the requirements of various colors. The operating temperature range is-60 ~ 80℃. It is suitable for areas with strong vibration such as earthquake-prone areas, near railways or factory buildings with high-power cranes, and areas with strong ultraviolet radiation.
The obvious feature of rubber is durability. Rubber itself is a good material, which is quite good in both softness and design, and can effectively block the impact of the outside world. For our home life, using rubber as door and window rubber steal strip can relatively guarantee the service life and prolong the use efficiency.
5. Silicone rubber sealant strip
It has outstanding characteristics of high and low temperature resistance, ozone proof and weather resistance; It has excellent hydrophobic property and proper air permeability; It has unparalleled insulation performance; It can reach the hygiene level of food sanitary standard, it can meet the requirements of various colors. The disadvantage is that the mechanical strength is the worst among rubber materials and it is not resistant to oil. Operating temperature range-100 ~ 300℃. It can be applied to areas with high temperature, cold, strong ultraviolet radiation and middle-high building.
Silica gel is one of the more emerging types of sealing strip, which has good elasticity and heat resistance. To a certain extent, it sings the service life of sealing strip, and the plasticity of silica gel is relatively good, in today's life, all walks of life have a wide range of applications, making it an ideal choice in sealing strip processing, and the use efficiency is more guaranteed.
