Recycled material: all industrially recyclable materials that can be reused through a certain process are called recycled material. Generally refers to recycled plastics.
Refers to the recycling of raw materials, in some attributes but stronger than new material, some attributes and new material is still the same, other attributes are still worse than new material.
Because the world's resources are always a hot topic for human beings, the slogan of resource conservation has been deeply rooted in people's hearts and minds. Therefore, the awakening of recycled materials is inevitable, so that people can truly achieve environmental protection and energy conservation through the recycling of resources. Reworked material's biggest advantage is definitely cheaper than the new material price, though it's on the overall performance and attributes are not as good as new material is strong, but we don't need to use in many products made the properties and performance of all the good material to make it, so that wasted a lot of a lot of unnecessary attributes, and the reworked material is different, according to different needs, only need to processing some aspect of attributes, can make the corresponding products, so not to waste resources.
Recycled materials are generally generated from the recycling and reuse of chemical products. Through some processing means, various corresponding products are produced. With different product demands, the properties of recycled materials are different. The use of recycled materials is becoming more and more popular among manufacturers of plastic products.
LDPE (Chinese name: low density high pressure polyethylene), sensory identification: soft feel: white transparent, but transparency is general, often tape and printing. (note: tape and printing are unavoidable, but the content must be controlled, as these will affect the price in the market.)
Combustion identification: combustion flame yellow under blue; Burning smokeless, paraffin smell, melting dripping, easy to draw.
EVA (Chinese name: ethyl acetate), sensory identification: soft surface; Tensile toughness is stronger than LDPE, feel sticky (but no glue on the surface); White transparent, high transparency, feel and feel very similar to PVC film should pay attention to distinguish.
Combustion identification: the same as LDPE with the smell of paraffin slightly sour; Burning flame yellow under blue; Smoke-free when burning. Melt dripping, easy to draw.
Note: this product is one kind of PE, the price is the same as LDPE, can be used for recycling granulation, the quality requirement is the same as PE.
PP (polypropyl), sensory identification: this product is white transparent compared with LDPE transparency is higher, rubbing sound.
Combustion identification: when the flame burning yellow under blue, smell like oil, melting dripping, burning when no black smoke.
PET film (polyester), sensory identification: this product is white and transparent, feel hard, rub when sound. Looks like PP.
Combustion identification: there is black smoke, flame jumping phenomenon, after burning material surface black carbonization, finger rubbing after burning black carbonization, carbide powder shape.
PVC film (PVC), sensory identification: appearance very EVA but elastic.
Combustion identification: smoke when burning, from the fire that is out, combustion surface is dark color, no melting dripping phenomenon.
Nylon copolymer (LDPE+ nylon), sensory identification: this product is very similar to LDPE.
Combustion identification: combustion flame under the yellow blue, smokeless combustion, there is the smell of paraffin, melting dripping, easy to pull wire but different with LDPE is burning when the smell of burning hair, burning light yellow.
Note: nylon copolymer can not be used for recycling granulation, and LDPE strict distinction and strict control of the content in large pieces.
PE+PP copolymer, sensory identification: compared with LDPE, the transparency of this product is much higher than LDPE, and there is no difference between its feel and LDPE. The tear test is very like PP film, and the material is transparent and pure white.
Combustion identification: when this product burns, the flame is all yellow, melting dripping, no black smoke, smell like oil.
PP+PET copolymer, sensory identification: appearance like PP, high transparency, louder than PP when rubbing.
Combustion identification: combustion when black smoke, flame jumping phenomenon, combustion surface was dark carbonization.
PE+PET composite film, sensory identification: the material surface is smooth and not smooth, white and transparent.
Combustion identification: burning like PET, no melting dripping phenomenon, the burning surface dark carbonization, black smoke, fire phenomenon, with PE paraffin smell.