At present, there are two kinds of insulation strips used in the market, one is PA66GF25, and the other is PVC insulation strips. Which of these two insulation strips is good? Which insulation strip should we choose when purchasing?
The answer given by the editor is that the brand is broken.
At present, there are two kinds of insulation strips used in the market, one is PA66GF25, and the other is PVC insulation strips. Which of these two insulation strips is good? Which insulation strip should we choose when purchasing?
The answer given by the editor is that the brands all use PA66GF25 insulation strips, while the fake and inferior ones use PVC insulation strips. There is a big difference between the two. Unexpectedly, there are differences between them, so how should our consumers distinguish them when purchasing?
1. Look at the gloss, the surface of the nylon strip PA66 is a matte texture, the color is anti-black; But PVC strip looks smooth, smooth, and the color is anti-white. The comparison between the two can be clearly distinguished.
2. Another point is that nylon strip PA66 does not burn. If it burns at PVC strip, it will burn for a while and see small flames, and there will be a general smell of plastic, as long as you observe carefully, there will be nylon strips and PVC strip in the area.
PA66GF25 heat insulation strip is a structural accessory commonly used in strip-type heat insulation profiles. Its main performance should be reflected in matching with broken bridge aluminum profiles, and fully reflect the heat insulation effect and the requirements on transverse tensile strength in actual use and under special ambient temperature, reducing the water absorption performance of PA66, because the operation process of rolling combination is required between the heat insulation strip and the broken bridge aluminum profile, the hardness and linear expansion coeffcient of the heat insulation strip must be considered, it should even be deeply considered that it can meet the temperature resistance requirements of more than 250℃ required in the international operation standard processing of first threading and then spraying.
PA66 is a series of modified engineering plastic alloy. Compared with other engineering plastics, nylon (PA66) has the following characteristics;
1. High melting point, excellent heat resistance and self-extinguishing.
2. Toughness, durability, electrical properties and other physical properties all have excellent balance indexes.
3. Excellent oil resistance agent and chemical resistance.
4. It has excellent wear resistance, creep resistance and aging resistance.
However, we must clearly know that the unmodified PA66 material does not match the aluminum alloy in tensile strength and linear expansion coeffcient, so we must first modify the PA66 raw material, make it match with broken bridge aluminum profile, and improve its transverse tensile strength in different states to meet the requirements of weather resistance during actual use.
Therefore, PA66GF25 of high-quality brand insulation strips are used, which is also an important judgment basis for distinguishing good or bad, such as brands., all marked on the heat insulation strip.
