Although plastic in our daily life is very common and common, but for plastic products are new material processing or recycling processing, many people may not be very clear.The first exposure of this year's live broadcast of CCTV's March 15 gala was related to plastic -- medical waste was processed into daily necessities and toy products.
In fact, in addition to this year's plastic products were CCTV 3·15 exposure, last year's 3·15, for the drainage of the bellows and non-bellows water supply, also was exposed a lot of pipe parts added recycled material used in residential drainage water supply system, because the cost of recycled material is low.
Plastic products are widely used, involving a lot of types, for their own health and safety, for new materials and recycled materials of the product we should know how to identify some methods.The first thing to understand is what is new and recycled materials.
New material: plastic raw material used for the first time.
Recycled materials: all industrial can be recycled, through a certain process and can be used again raw materials called recycled materials.Generally refers to recycled plastic.Recycled materials are recycled products that have been processed into products and unqualified products produced in the process of processing products are recycled and then crushed and granulated.
Recycled material is at least once processed, or more than once, what plastic head material, water mouth material, waste can be called recycled material, the premise is also able to meet industrial needs.Recycled materials are widely used because of their low cost.
How to distinguish between new and recycled products.A few points are listed below for your reference.
1, look at the appearance of the luster.
Get plastic prouct the first see color, surface burnish is good, color is bright-coloured, pure and fresh, brightness is good the product that new makings makes.The color of the new material is generally light, bright, if it is transparent product surface beautiful, without any impurities
The color of the raw material is generally deep, thick, dark, impurities are also many, the product surface glossiness is poor, the product will feel some rough (frosted surface except) color dead, opaque (add a lot of titanium dioxide), the surface has a small amount of black spots and other impurities.White products are the easiest to see, but generally recycled materials do not make white products, and each batch of recycled materials can not guarantee the same products.
2, performance,
The stability of the new material is good, and the new material is environmental protection, toughness and tensile better, not easy to appear a pull on the fracture phenomenon, if it is a plastic bag products, shaking will send out a clear sound;
Recycled plastic bags are often a "buzz".At the same time, the source of recycled materials is unstable, and the mechanical properties of the materials in the physical properties are worse than the new materials.The tensile strength and toughness are not good, so the product quality will not be as good.
3, taste
New materials such as plastic wrap, plastic bags, water cups, pearl cotton, these are the most secure plastic products, is no poison and odor.
And regenerated materials may be poor production conditions, and no disinfection process, plus cleaning or regeneration when adding residual solvents, easy to have a foul odor or pungent odor, and may contain serious excessive bacteria, drug pollution and endanger health.But some manufacturers use deodorants to get rid of odors, so it's sometimes hard to tell by taste alone.
Above 3 o 'clock just the simplest discern a method, for safety safeguard, when buying the thing of a few food grade, had better still want to choose reliable businessman or well-known product, relatively unknown manufacturer can some safer.
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