This is the most used plastic in buildings. Rigid PVC has a density of 1.38 ~ 1.43g/cm3, high mechanical strength and good chemical stability, and its service temperature is generally between-15 ~+55℃, so it is suitable for manufacturing plastic doors and windows, sewer pipes, trunking, etc.
② Polyethylene
Polyethylene plastic is mainly used for building drainage pipes and sanitary ware.
③ Polypropylene (PP)
The density of polypropylene is the smallest of all plastics, about 0.90. Polypropylene is usually used to produce building products, such as pipes and sanitary wares.
④ Polystyrene
Polystyrene is a colorless and transparent glassy plastic. Polystyrene is mainly used to produce foam insulation materials, light-transmitting materials and other products in buildings.
5 5 ⑤ABS plastic
Simply put, PE material has good transparency and low price, but its strength is not enough. The film strength of PVC is very good, but the transparency is too poor. You may be looking for PS series, but the price should be more expensive.
Question 2: What is the general mineral water bottle made of? Bottles include cool beverage bottles, mineral water bottles, liquid food bottles, cosmetics bottles, etc. The materials used are polyethylene (PE), polyvinyl chloride (PVC) and polyethylene terephthalate (PET).
Usually mineral water bottles are made of PVC or PET.
Carbonated drink bottles are made of PET.
Cool drink bottles and liquid food bottles are made of PVC and PE.
Question 3: What is the material of the cover of the mineral water bottle? Specifically, it is PP or PC or other plastic sleeves. There are many differences in structure and material, which are generally divided into PP and PE.
PP material: mostly used for gaskets and bottle caps of gas drinks. This material has low density, heat resistance, high surface strength, innocuity and good chemical stability, but its disadvantages are poor toughness, brittleness at low temperature, poor oxidation resistance and wear resistance. Bottle caps made of this material are mostly used for bottle cap packaging of fruit wine and carbonated drinks.
PE material: mostly used for hot filling bottle caps and aseptic cold filling bottle caps. This material is non-toxic, good in toughness and impact resistance, easy to form films, resistant to high and low temperatures, and has good environmental stress cracking performance. Its disadvantages are large shrinkage and serious deformation. At present, many vegetable oils and sesame oils in glass bottles are made of this material.
Generally, there are only two kinds.
Just adopted, thank you.
Question 4: What is the material of Wahaha mineral water bottle? Wahaha bottle cap is made of PE (polyethylene), not polyester. The bottle body is made of PET (polyethylene terephthalate), which is polyester.
The bottles of mineral water are made of PET and PVC, and PVC is generally used more.
The hardness of the bottle is only relative to the thickness. Take a 500ml bottle as an example. As long as the bottle cap is unscrewed and it is not easy to squeeze out the water in the bottle, it is considered qualified. But pay attention to the bottle. Generally, those with chromatic aberration, impure color, impurities or black spots are recycled materials.
Question 5: What is the material of the mineral water bottle, the material of the bottle cap and the trademark? The mineral water bottle is generally made of peT, and the bottle cap is made of PE trademark paper pp or pvc. How to deal with waste materials, go to "Baowang" to understand;
Question 6: What is the material for making mineral water bottles? The bottles of mineral water are made of PET and VC. Generally, PVC is used more, and the hardness of the bottle is only the relative thickness. Take a 500ml bottle as an example, as long as it is not easy to squeeze water out of the bottle by unscrewing the cap, it is considered qualified. But pay attention to the bottle. Generally, those with chromatic aberration, impure color, impurities or black spots are recycled materials.