However, at room temperature and low temperature, the impact strength is poor due to the high molecular structure of the person. The most outstanding performance of polypropylene（China PP non woven fabric manufacturer） is the anti-corrugation property, commonly known as the 100-fold adhesive.

Thermal performance

Polypropylene has excellent heat resistance, and the product can be sterilized and sterilized at a temperature of 100 ° C or higher. Under the condition of no external force, it is not deformed at 150 ° C. The embrittlement temperature is -35 ° C, and embrittlement occurs below -35 ° C, and the cold resistance is not as good as polyethylene（PP nonwovens vendor）. The reported values ​​of the glass transition temperature of polypropylene have 18qC, OqC, 5°C, etc., which is also because people use divergent samples, in which the ratio of crystal phase to amorphous phase is different, so that the chain length of the amorphous part in the molecular chain is divergent. And to. The melting temperature of polypropylene（spun bonded non woven fabric company） is about 40-50% higher than that of polyethylene, about 164-170 ° C, and the melting point of 100% isotactic polypropylene is 176 ° C.

Buy non woven fabrics, non woven fabric manufacturers, we deserve your trust!