It's partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder, more heat resistant and has a high chemical resistance
PP The product frame is made of solid pine. The coating contains polypropylene, which protects the door from sunlight, moisture and cold. In this way, in home decoration, no matter what the environment is, the door will not be damaged because of bad weather, and it has a prominent relief surface, which can be decorated in a straight line or arc, and the door coating looks like a natural wood texture. This coating covers all the parts of the door. Made of polypropylene coating, free of phenols, formaldehyde or other harmful substances. The door is soft and soft to the touch. This coating protects against water, cracks and harmful sunlight. The coating does not crack and is easy to clean.
Non-toxic, tasteless, low density, strength, stiffness, hardness and heat resistance are better than low-pressure polyethylene, can be used at about 100 ℃. It has good dielectric properties and high frequency insulation and is not affected by humidity.
Polypropylene doors has many excellent properties:
1. The relative density is small, only 0.89-0.91, which is one of the lightest kinds of plastics.
2. Good mechanical properties, except for impact resistance, other mechanical properties are better than polyethylene, molding and processing properties are good.
3. It has high heat resistance, and the continuous use temperature can reach 110-120 ℃.
4. It has good chemical properties, hardly absorbs water and does not react with most chemicals.
5. The texture is pure and non-toxic.
6. Good electrical insulation.
7. The transparency of polypropylene products is better than that of high density polyethylene products.
The overall structure of the solid wood door is made of cheap wood, such as Chinese fir finger joint board, and the outer layer is covered with a density board and then decorated. The sound insulation effect of solid wood door is very good, and the price is lower than that of log door, so it is the most commonly used indoor door. The price of solid wood composite door is the lowest in the wooden door, and the weight is the lightest, so it is easy to distinguish. The frame is usually made of ordinary wood and then affixed with a density board on both sides.
In some places that are not suitable for wooden doors, such as bathrooms, plastic doors are suitable for low budgets. polypropylene door is a kind of plastic door, including the door frame, is made of polypropylene, the thickness can not be compared with the wooden door, but the price is cheap. Even if the style is embedded in glass, the unit price is generally lower than the price of solid wooden doors. However, such a thin door, the general function is to block the line of view, in terms of sound insulation is not as good as other materials of the door.