All Type Plastic Fabrication
The development trend of plastics can be summarized as two aspects. One is to improve the performance, that is, to modify the existing varieties in various ways, To improve its overall performance; two, the development of functional, that is, to develop light, electricity, magnetism and other physical functions of polymer materials, so that plastic can have photoelectric effect, thermoelectric effect, piezoelectric effect, etc..
all type plastic fabrication
Plastic can be seen everywhere in our life, plastic products are made of different materials, different materials, applications are also different. The figures at the bottom of the plastic bottle represent different materials.
The number "1" stands for polyethylene terephthalate, that is, PET. Mainly used in mineral water bottles, carbonated drinks, fruit juice bottles and soy sauce, vinegar bottles, etc.. PET bottles have a heat resistance of 70 degrees Celsius. They are only suitable for holding warm drinks or frozen drinks. When boiling water or heating, they are easy to deform, and the harmful substances can also be dissolved.
The number "2" stands for high-density polyethylene, or HDPE. HDPE is a composite film made from other plastics and used in aquatic products.
Digital "3" stands for PVC, or PVC, which is also used to make intravenous infusion bags and disposable sterile infusion devices because of their low price. But if used for a long time, it can cause accumulation of harmful substances DEHP. Therefore, from the security point of view, the pharmaceutical industry to choose non PVC material is the future trend.
The number "4" is low-density polyethylene, or LDPE. Plastic No. 4 is used in large quantities for packing. LDPE is mainly used to produce plastic wrap for food and plastic bags for food.
The number "5" is polypropylene, or PP. First, make containers. PP is the only plastic container that can be put into a microwave oven and is a plastic container that can be used over and over again. It can be used as a storage container for food, oils, spices and so on. Two make packing film, stretch and stretch without tension. Non stretched polypropylene (CPP) is commonly used in the packaging of snacks, breads and fruits. Biaxially oriented polypropylene (BOPP) is a flexible packing material comparable to glass paper.
The number "6" is polystyrene, or PS. PS is mainly used in packaging for film and foam plastics. Film packaging for fruits and vegetables; foam for instant noodles and snack box box, but not high temperature, it cannot be directly heated in a microwave oven, the temperature is too high to avoid the release of toxic chemicals.
The number "7" is polycarbonate, that is, PC or other plastics. PC material made of plastic containers, may release toxic bisphenol A, the higher the temperature of the release, the faster speed, so do not use heating, but also not in the sun.
1., most of the plastic corrosion resistance, and not with acid, alkali reaction.
2. plastic manufacturing costs low.
3. durable, waterproof, light quality.
4. easy to Suzhi into different shapes.
5. are good insulators.
6., plastics can be used in the preparation of fuel oil and fuel gas, which can reduce oil consumption.
Xiamen Goldcattle Plastic & Metal Product Co.,Ltd
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