2024年4月29日发(作者:荣耀9青春版详细参数)
塑料等级(Plastic grade)
Polyester containers do more harm to humans than disposable
plastic.
Dubai, a twelve year old girl, has been cancer for sixteen
months using the same mineral bottle. The general bottle
contains a polyethylene called terephthalate (polyethylene
terephthalate), or PET plastic material, is made of
terephthalic acid (Terephthalic acid) and ethylene glycol
(Ethylene glycol) combined produced polymers. PET plastic has
the characteristics of light, high transparency, impact
resistance, not easy to break. It can also prevent carbon
dioxide gas and keep the soda gas. Therefore, PET plastic is
suitable for packing, especially for carrying water and drinks.
Some scholars believe that the inside is called a
diethylhydroxylamine (ethylhexyl amine) or DEHA potential
carcinogen, with a safe, convenient and economical if you or
because of repeated use, they are a cancer crisis.
In modern life, we come into contact with a wide variety of
plastic products every day, such as plastic shopping bags,
plastic cups, plates, plastic bottles and so on. However, we
may not know that these plastic products are made from resin
of different materials, and different resin material may
precipitate toxic and harmful substances in different
temperature and humidity conditions, it is not safe. So how can
we understand the characteristics of various materials and use
them safely? One solution is to look at the raw materials for
the manufacture of plastic products.
<1> plastic recycling mark
Plastic recycling marks are a triangular symbol, usually at the
bottom of a plastic container. Inside a triangle 1 ~ 7 numbers,
each number represents different materials, so the recovery of
different digital signs to indicate that the product is made
of resin which, if the product is made of several different
materials, it is marked products main and basic materials. The
logo is said to have originated in the United states. Now, this
method of labeling has been accepted and quoted by many
countries, including our country. In our country, plastic label
marking is not mandatory, some regular large brand enterprises
in order to facilitate the recycling of plastic products, have
recently begun to mark recycling signs. Although this logo is
mainly for recycling, but consumers can also use this logo to
know what plastic material is used and what environment should
be used.
Different materials use different conditions
The small recycling logo at the bottom of a plastic product is
like a small identification card for each plastic container.
They are made of different materials and vary in use.
"01" - - PET (polyethylene terephthalate)
Mineral water bottles and carbonated beverage bottles are made
of this material. The beverage bottle can not be recycled for
hot water. The material is heat-resistant to 70 degrees
centigrade. It is only suitable for holding warm drinks or
frozen drinks. High temperature liquid or heating is easy to
deform, and the harmful substances are dissolved. And,
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