What should I do if PP daily necessities break easily in cold weather?

PP materials are prone to brittleness and cracking in cold weather. In fact, the simplest problem is to add ZH-ZR-7 cold-resistant toughening agent to improve toughness so that it does not become brittle at minus 40 degrees Celsius. , anti-falling and anti-smashing

Secondly, it can be improved in the following three ways:

(1) Mix and toughen with rubber or thermoplastic elastomer

Since both PP and ethylene-propylene rubber contain propyl groups, they should have good compatibility according to the principle of similar compatibility. And because ethylene-propylene rubber belongs to the rubber category and has high elasticity and good low-temperature properties, ethylene-propylene PP is a good toughening modifier. Mixing ethylene-propylene rubber with PP can improve the impact properties and low-temperature brittleness of PP.

(2) Toughening of inorganic rigid particles

In recent years, with the improvement of surface treatment technology of inorganic rigid particles, the interface bonding between inorganic particles and PP has been strengthened, and the inorganic rigid particles have become stronger. The dispersion ability in PP increases, and the inorganic particles not only enhance the PP but also produce a magical toughening effect. The filling amount has also increased from the previous upper limit of 40% to 60% to 70%.

(3) Inorganic nanomaterial toughening

Inorganic nanoparticles have fewer surface defects, more unpaired atoms, and a large specific surface area. They can control the crystallization behavior and crystal structure of PP through particle effects. And the mechanical behavior of polypropylene in the interface area, so as to achieve the purpose of both strengthening and toughening.