PP material has the characteristics of high temperature resistance, low temperature resistance and acid and alkali resistance. PP material is relatively large in proportion, high in hardness, difficult to deform, resistant to compression and falling, durable, easy to form, and can be made into various appliances, and it is cheap, safe, nontoxic and easy to use.
The difference between pp material and PVP material
Pp generally refers to polypropylene. Polypropylene is a polymer formed by addition polymerization of propylene. It is a white waxy substance with a transparent and light appearance.
PVP is a kind of nonionic polymer compound, and it is the most characteristic fine chemical in N- vinylamide polymers, which has been widely and deeply studied.
It has developed into three categories: nonionic, cationic and anionic, and three specifications: industrial grade, pharmaceutical grade and food grade. Its relative molecular weight ranges from several thousand to more than one million, and it has been widely used for its excellent and unique properties.
Application of polypropylene material
Polypropylene can be divided into five categories according to its main uses: PP injection molding, PP drawing, PP fiber, PP film and PP pipe.
PP injection molding is mainly used for small household appliances, toys, washing machines, auto parts and so on.
Polypropylene drawing is mainly used for plastic woven products, and daily container bags, woven bags, food bags and transparent bags all belong to PP drawing products.
Polypropylene film is generally divided into BOPP film, cast polypropylene film and IPP film, and PP film is mainly used for food packaging.
Polypropylene fiber is a kind of fiber product made of polypropylene by melt spinning. Mainly used in decoration, clothing and other fields.
Polypropylene has the characteristics of non-toxicity and high temperature resistance, which makes PP pipes mainly used in water supply and heating systems.
Comparing pp and pvc materials, which is better, pp and pvc materials have their own advantages and disadvantages. PP is polypropylene, a polymer formed by addition polymerization of propylene. It has the characteristics of thermoplasticity, light specific gravity and chemical corrosion resistance. PVC is polyvinyl chloride, which has the advantages of flame retardant, high chemical resistance, good mechanical strength and good electrical insulation. Let's give you a detailed introduction of pp and pvc materials to see which one is better.
Which is better, pp or pvc?
1, polypropylene (PP) is a kind of thermoplastic synthetic resin with excellent performance, and it is a colorless and translucent thermoplastic lightweight general plastic with heat resistance, chemical resistance, electrical insulation, high-strength mechanical properties and good wear resistance.
2. Polypropylene is widely used in the production of clothing, blankets and other fiber products, medical devices, electronic appliances, automobiles, bicycles, parts, transportation pipelines, chemical containers and so on. It is also widely used in agriculture, forestry, fishery and food industry.
3. Polyvinyl chloride (PVC) is a polymer formed by polymerization of vinyl chloride monomer under the action of initiators such as peroxides and azo compounds. Or under the action of light and heat according to the mechanism of free radical polymerization. Its transparency is better than polypropylene, but the hardness of its hard products is lower than polypropylene.
4.PVC used to be the largest general plastic in the world, which was widely used in industrial products, building materials, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers and so on.
Comparison of polypropylene and polyvinyl chloride materials
Through the comparison of the above pp and pvc materials, I believe everyone can understand that judging which material is better depends on its use. For example, in the food industry, pp is better than pvc. In terms of building materials, pvc is superior to PP, and both PVC and polypropylene belong to one of the four general thermoplastic resins, which are used in different fields because of their different characteristics.
What is the poster material? The poster material is recommended 1, and the poster material is PP paper. 2. The material of 2.PP paper is similar to the photographic paper developed in the photo studio. The material is slightly thinner and covered with a waterproof film, which is suitable for advertising posters and commercial posters. 3. The commonly used materials for posters are: non-woven fabrics, spun silk fabrics, PP paper (commonly known as stickers) and photographic paper. 4. Non-woven fabrics are thick, granular, three-dimensional, not afraid of folding and curling, and can recover quickly. Silk cloth is smooth, light, soft and vertical, which is suitable for wedding ceremony posters. 5. The material of photo paper is similar to that of photo studio, but it is thicker and covered with a waterproof film, which is suitable for making animation posters, high-precision digital life photos and so on.