Difference Between PVC And PE
Jun 19, 2024| Polyvinyl chloride(PVC) is an initiator of vinyl chloride monomer in peroxide, azo compound, etc. Or under the action of light and heat according to the mechanism of free radical polymerization polymerization polymer.
Polyethylene (PE) is a thermoplastic resin produced by polymerization of ethylene. In industry, it also includes copolymers of ethylene with a small amount of alpha-olefin. Polyethylene odorless, non-toxic, feel like wax, has excellent low temperature resistance (minimum use temperature can reach -100~-70°C), good chemical stability, resistance to most acid and alkali erosion (not resistant to acid with oxidation properties). Insoluble in general solvents at room temperature, low water absorption, good electrical insulation.
What is the difference between the nature of PVC and PE?
1. Strength: PE has high strength and toughness, and can withstand relatively large stress, while PVC has low strength and is easier to break
2. Density: The density of PE is lower than PVC, so PE is lighter.
3. Corrosion resistance: PE has good corrosion resistance, and it has good stability for most chemicals and solvents. PVC has good corrosion resistance to some chemicals and solvents.
4. Thermal stability: PE has good high temperature resistance and can maintain stability at higher temperatures. The thermal stability of PVC is relatively poor and easy to be deformed by heat.
5. Machinability: PE has good machinability and can be easily processed by extrusion, blow molding and other processes. PVC also has good processability and is widely used in the manufacture of various plastic products.
6. flame retardant: PVC has good flame retardant, not easy to burn, can be used to manufacture flame retardant materials. The flame retardancy of PE is poor and is not suitable for the manufacture of flame retardant materials.
7. Transparency: PE is usually translucent or opaque, PVC can adjust the transparency according to need, can make transparent or translucent products.
What are the differences between PVC and PE in application?
1.PE is mostly used in packaging materials, such as plastic wrap, food bags, plastic bottles, etc. In addition, PE is also widely used in underground pipelines in civil engineering, water pipes in water conservancy projects, and containers in the chemical industry.
2.PVC is widely used in building materials, such as floors, wall panels, window frames, etc. In addition, PVC can also be manufactured wire and cable insulation, water pipes, plastic bags.
How to distinguish between PVC and PE?
1,.Touch method: the hand feels lubricated, the surface is like coated with a layer of wax (chemically called wax), which is a non-toxic polyethylene film; And the PVC film feels a little sticky.
2.Shaking method: hand shaking sound brittle, is non-toxic polyethylene film; With the hand shaking sound low is polyvinyl chloride film plastic bag.
3.Combustion method: in case of fire, the flame is yellow, burning paraffin oil drops. And has the smell of candle burning, is non-toxic polyethylene film; If it is not easy to burn, it is extinguished from the fire, and the flame is green for polyvinyl chloride film plastic bags.
4.Immersion method: the plastic bag is immersed in water, and the non-toxic polyethylene film that can surface after pressing it into the water by hand; It was a polyvinyl chloride film plastic bag that sank to the bottom.
Summary: What is the difference between pe and pvc? PE and PVC are two common plastic materials, which have different structural properties and applications. PE has good strength, high temperature resistance and high corrosion resistance. PVC has good processability, flame retardancy and transparency. In terms of application, PE is mostly used in packaging materials and civil engineering, while PVC is mostly used in construction materials and wire and cable insulation layer manufacturing and other fields.
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