1, the color difference:
The commonly used color of PP material is primary color (natural color of PP material), beige gray, porcelain white and so on.
PE is rich in color, generally dark gray, light gray, beige, ivory, transparent and so on.
2, weight difference: PP board is smaller than PE board, PE density is higher, so PE is heavier.
A, domestic: PP board density is generally: 0.92 transparent PE board density: 1.4
B. Imported PP board rice gray density: 0.915, primary color density: 0.905, PE transparent board density: 1.4.
3, acid and alkali resistance:
PE has better acid and alkali resistance than PP plate, but the texture is brittle and hard, resistant to ultraviolet radiation, can withstand climate change for a long time, is not flammable, and is lightly toxic. However, the PP board is not UV-resistant, and the sunlight will change color when exposed for a long time.
4, temperature difference:
A, domestic; PP temperature range is about 0 to 80 degrees Celsius, PE range is 0 to 60 degrees Celsius, PE material temperature range is -40 to 95 degrees Celsius.
The temperature range of B and PP is about 0 to 100 degrees Celsius, and the temperature range of PE is 0 to 60 degrees Celsius.
5, the scope of application:
A. PP board is mainly used in acid and alkali resistant equipment, environmental protection equipment, waste water, exhaust gas discharge equipment, washing tower, clean room, semiconductor factory and related industrial equipment. PP thick plate is widely used in stamping plate and punching mattress. Board and so on.
B. The PE board is a sheet made of PE as a raw material and having a honeycomb structure with a cross section. PE boards are mainly used in many industries such as building materials, packaging, and medicine. Such as construction, electroplating equipment, acid and alkali resistant equipment, industrial sewage equipment, chemical industry and so on. PE can be divided into soft PE and hard PE according to the degree of softness and hardness. According to the production process, it can be divided into PE crust foam board and PE free foam board.
6, the price difference:
The price of PP is relatively low compared to the price of PE. The PE board has a higher density, so the PE board is heavier.
7, welding strength
PE is good toughness, low welding strength, PP is good in rigidity, high in welding strength.