Polyethylene cap is also known as a plastic cap, its raw materials are polyethylene, polyethylene is the scientific name of plastic. The two are the same. Since the two are the same, and the formation process is the same.
Material classification of plastic pipe cap：
1.Polyvinyl chloride (PVC)
3. polypropylene (PP)
5. ABS plastic
The feature of External button type: Not only protect the inside of the steel pipe to form a closed space inside the pipe but also completely protect the steel pipe end. This form is more common in the steel pipe transport and storage process and also has played a very good effect. If you are interested in our plastic pipe end caps, please feel free to contact us, and pipe plugs and flange protectors are all available.
The choice of plastic cap and cap molding mainly depends on the type of plastic, whether it is thermoplastic or Thermos setting. It also depends on the starting form and the shape and size of the product. The commonly used methods for processing thermoplastics are extrusion, injection molding, calendering, blow molding and thermal molding, etc.
The plastic cap has excellent chemical stability:
1. Lightweight plastics are plastic materials with a relative density between 0.90 and 2.2.
2, It has excellent chemical stability. Most plastics have good corrosion resistance to acid, alkali, and other chemical substances.
3.it has excellent electrical insulation performance. Ordinary plastics are bad conductors of electricity. It’s surface resistance and volume resistance is very large. The digital representation can reach up to 109-1018 ohms.
4. Generally, The bad conductor of heat has the effect of noise elimination and shock absorption. The thermal conductivity of plastics is relatively low, which is equivalent to 1/75-1/225 of steel.