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Plastic appliance

 

Plastic containers such as plastic crispers and cups are used more and more widely in the home, especially in the summer. How to choose the

right material to ensure safety? Wang Zhenhua senior engineer said that the bottom of the plastic product has a triangle with an arrow. The

recycling mark, there is a number in the middle of the triangle, this is the code of the plastic material, according to this number to choose

different materials of plastic appliances for different purposes.

1. stands for PET (polyester): common in mineral water bottles, carbonated beverage bottles

This kind of beverage bottle can resist heat to 70℃, suitable for warm drinks or frozen foods. It is easy to deform when it is filled with

high temperature liquid or heated, and harmful substances will melt out. After 10 months of use, PET may age and release harmful substances.

Therefore, when the beverage bottle is used up, it should be discarded in time, and should not be used as a water cup or recycled for a long

time.

2. stands for HDPE (high density polyethylene): soy sauce bottle, oil bottle, cleaning and bathing product bottle
HDPE can be heat-resistant from 100 ° C to 120 ° C. It is used in food packaging and is generally used to manufacture large-capacity

containers, turnover boxes, turnover drums, etc., and has good environmental adaptability.

3. stands for PVC (polyvinyl chloride): medicine bottle, storage bottle

PVC without plasticizer is hard, used for pipes, doors and windows, etc., and is used in food and medicine packaging.

4. stands for LDPE (low density polyethylene): yogurt bottle, chewing gum bottle, beverage bottle

LDPE is a general-purpose plastic with low processing temperature and generally no additives. It can be used in a variety of containers, but

the temperature cannot exceed 80 ℃.

5. stands for PP (polypropylene): crisper, microwave lunch box

The only plastic case that can be placed in the microwave oven can be reused after careful cleaning. Special attention is required. In some

microwave ovens, the case is made of PP resin, but the cover is made of PE. Since the PE cannot withstand high temperatures, it cannot be

placed in the microwave together with the case. To be on the safe side, remove the lid before placing it in the microwave oven.

6. stands for PS (polystyrene): instant noodle box, fast food box

PS is heat resistant, cold resistant, and impact resistant, but it cannot be placed in a microwave oven to prevent low molecular weight

chemicals from being released due to excessive temperature. It is not suitable for containing strong acidic substances (such as vinegar,

orange juice), and it is easy to decompose harmful components at high temperatures.

7. stands for PC (polycarbonate): kettle, water glass, pure bucket


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