What are the differences between plastic sheet PP, PVC, PE, PET, PMMA inventory?
1. PP material
PP plastic is isotactic crystallization, good thermal stability, but the material is brittle, easy to break, mainly polypropylene material. The microwave oven lunch box is made of this material, which is resistant to 130°C temperature and has poor transparency, which is the only plastic box that can be put into the microwave oven and can be reused after careful cleaning.
It should be noted that some microwave oven lunch boxes, the box body is made of No. 05 PP, but the lid is made of No. 06 PS (polystyrene), PS transparency is general, but it is not resistant to high temperature, so it cannot be put into the microwave oven together with the box. To be on the safe side, remove the lid before placing the container in the microwave.
2. PVC material
PVC, also known as PVC, is polyvinyl chloride resin, often made of engineering profiles and daily life plastic products, common raincoats, building materials, plastic films, plastic boxes, etc. Excellent plasticity and low price. However, it can only withstand 81°C high temperature.
The toxic and harmful substances that are easy to produce in plastic products of this material come from two aspects, one is the single molecule vinyl chloride that has not been completely polymerized in the production process, and the other is the harmful substances in the plasticizer. These two substances are easy to precipitate when encountering high temperature and grease, and poisons are easy to cause cancer after entering the human body with food. At present, containers of this material have been used less often to package food. Also, don’t let it get heated.
3. PE material
PE is polyethylene. Plastic wrap, plastic film, etc. are all made of this material. The heat resistance is not strong, and usually qualified PE plastic wrap will have a hot melt phenomenon when the temperature exceeds 110 °C, leaving some plastic preparations that the human body cannot decompose.
Moreover, wrapping food in plastic wrap for heating, the grease in the food can easily dissolve the harmful substances in the plastic wrap. Therefore, when food is put into the microwave, first remove the wrapped plastic wrap.
4. PET material
PET, that is, polyethylene terephthalate, mineral water bottles, carbonated drink bottles are made of this material. Beverage bottles can not be recycled to fill hot water, this material is heat-resistant to 70 °C, only suitable for warm drinks or frozen drinks, high temperature liquid or heating is easy to deform, there are harmful substances to the human body dissolution.
5. PMMA material
PMMA, or polymethyl methacrylate, is also known as do
In Taiwan, it is called pressing, and in Hong Kong, it is more called acrylic glue, which has the advantages of high transparency, low price, easy mechanical processing, etc., and is a glass alternative material that is often used. However, its heat resistance is not high and it is non-toxic. Large-scale application in the advertising signage production industry.
The above is the introduction and description of Solid Plain Colors Plastic Pvc Films For Decoration Vinyl Film Self Adhesive Pvc, I hope it can be helpful to you.