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The "Detailed Implementation Rules for the Administration of the Recycling of Scrap Motor Vehicles" jointly issued by the Ministry of Commerce and other seven departments will come into force on September 1
.
In addition, the "Detailed Rules" also clearly stated that recycling and dismantling enterprises should establish a sales ledger for scrapped motor vehicle parts, truthfully record the number, model, flow direction and other information of the "five assemblies" of scrapped vehicles, and enter it into the national automobile circulation information management application service system
.
car
So today, let's take a look at the use of automotive plastics and the recycling of waste automotive plastics at this stage~
01.
The use of plastics in automobiles
The usage of plastics in automobiles The usage of plastics in automobiles
With the continuous improvement of the performance of plastics, in addition to being widely used in automobiles to make various interior trim parts, plastics can now be used to replace some metal materials to manufacture certain structural parts, functional parts and exterior trim parts
.
The main characteristics of commonly used plastics and their applications in automobiles
Plastics have been incorporated into automotive interiors and exteriors on a large scale
.
02.
The current status of recycling and utilization of waste automobile plastics in China
The current status of recycling and utilization of waste automobile plastics in China
A considerable part of domestic vehicle waste plastics are also disposed of by the backward method of incineration, which seriously pollutes the environment
.
At present, we can recycle some automotive plastics in three ways.
These methods are: particle recycling, re-milling; chemical recycling, pyrolysis; energy recycling, which uses waste as fuel
.
Utilization of engineering plastic recycling materials:
1.
Design the material to be used multiple times in the same or related application fields;
2.
The recycled materials are used in completely different occasions, and blending, alloying and composite materials play an important role in the reuse of recycled materials;
3.
Recycling of monomers, PC is the variety with the highest proportion of direct use without modification in engineering plastics.
Because there are no other components, PC is the most suitable for recycling monomers
.
The recycling of engineering plastics must first be separated by robots strictly by type to improve the physical properties of recycled plastics and ensure the quality of recycled pellets.
It also needs to be cleaned and then sent to a crusher for crushing
.
For the plastic parts with serious pollution, first rough washing is carried out to remove foreign objects such as sand, stone and metal, dehydrated and then sent to a crusher for crushing
.
Polyester resins represented by PBT and PET also need to pay attention to hydrolysis
.
If it is recycled material, the moisture absorption increases after crushing and storage after molding, and sometimes the moisture content is higher than that of raw pellets.
The recycled material must also be fully dried before molding
.
03.
Reuse of waste automotive plastics
Reuse of waste automotive plastics Reuse of waste automotive plastics
In order to improve the recycling and recyclability of automotive plastic materials, improvements can be considered in terms of disassembly, separation, identification and reuse:
Reduce the types of resins used, use a single resin to produce a variety of components, give preference to recyclable resins, reduce recycling costs, improve recycling plastics The best solution for recycling
.
At present, there are as many as 20 types of resins used in automotive plastics.
Experts estimate that the types of resins used in automotive plastics can be reduced to 4 to 9 types, of which PP accounts for the main part
.
Recycling of PP has been commercialized, and recycling is not a problem
.
After the implementation of the "Rules for the Implementation of the Measures for the Administration of Scrap Motor Vehicle Recycling", the status quo of "selling scrapped vehicles" will be changed.
The "five major assemblies" remanufacturing allows domestic scrapped motor vehicle recycling enterprises to no longer rely solely on scrap metal to make profits and scrap them.
Recycling companies and outlets will gradually increase to improve the conversion rate of waste plastics
.
For car owners, this regulation can effectively increase the value of scrapped vehicles.
Recycling companies will re-price scrapped vehicles according to their condition to achieve "one price for one car" and accurate recycling
.
