Anti-aging polypropylene switch

Abstract

The invention discloses an anti-aging polypropylene switch comprising the following components in parts by mass: 100 parts of PP (Polypropylene), 0.5-2.5 parts of carbon black, 1-2 parts of an antioxidant 1010, 0.1-1 part of an antioxidant CA, 0.1-0.5 part of BHT (Butylated Hydroxytoluene), 0.5-1 part of titanium dioxide, 0.5-0.8 part of DLTP (Dydecyl Thiopropionate), 20-30 parts of calcium carbonate, 2-4 parts of an ultraviolet absorber, 8-10 parts of EBS (Ethylene Bis Stearamide), 0.5-2 parts of nanometer zirconium phosphate silver loaded antibacterial agent, 3-10 parts of LDPE (Low-Density Polyethylene) and 5-15 parts of CPE (Chlorinated Polyethylene). The anti-aging polypropylene switch has the tensile strength of 34-35MPa, the bending strength of 40-50MPa, the hardness of 98-100, the heat deflection temperature of 145-160 DEG C and the 500h light aging impact strength retention rate of 100% and is capable of inhibiting bacteria, resisting wear and ultraviolet radiation, thus being widely produced and constantly replacing the traditional material.

Description

Technical field [0001] This application belongs to the field of plastic materials and especially involves a polypropylene anti -aging switch. Background technique [0002] Polypropylene is non -toxic, odorless, odorless creamy high -crystalline polymer, which is one of the lightest varieties of all plastics.It is particularly stable in water, with a water absorption rate in water only 0.01%, and molecular weight is about 8.15 million.The molding is good, but because the contraction rate is large (1%-2.5%). The thick wall products are prone to depression, and it is difficult to meet the requirements for higher parts and accuracy. It is also difficult to meet the requirements.Non -toxic, odorless, small density, strength, stiffness, and hardness heat resistance are better than low -pressure polyethylene, which can be used at about 100 ° C.It has good electrical performance and high -frequency insulation and is not affected by humidity, but it becomes crispy at low temperature and i...