International organizations report that global e-waste production hit a record 44.7 million tonnes in 2016, but only 20% of them are recycled, and the report also noted that in 2016 China generated the largest amount of e-waste at 7.2 million tonnes.
China is a big country for the production and consumption of household electrical appliances and plastics are an important part of household electrical appliances.In the household appliances, there are several kinds of plastics such as PE, PP, PA, ABS, PVC, AS, PC, POM, MPPO, PET, PBT and PSF Application is more common, the value of recycling and reuse.
Today, Xiaobian share with you what commonly used household appliances in the life of plastic can be recycled.
1, refrigerator
At present, the demand for plastic raw materials in the refrigerator is the largest among the household electric appliances. The average proportion of plastic in each refrigerator is as high as 30% to 50%. PS, PU, ABS and PP occupy a significant proportion in the refrigerator.
2, washing machine
Washing machine is also one of the household appliances that use more plastic parts, including the inner cylinder, the base, the pulsator and so on. One double cylinder washing machine uses about 7-12 kg of plastic and the fully automatic washing machine can reach 20 kg, accounting for the total weight of the washing machine 30% .Among them, the most common is the use of plastic PP, plastic used more POM, PA and ABS.
3, air conditioning
Air conditioning is generally divided into two parts of the indoor unit and outdoor unit. Indoor unit of plastic accounted for more than 30% of the total weight, which is the most widely used ABS and HIPS. Air filter is PP fiber woven in the PP bracket, drainage The pipe is extruded by soft PVC, the outer shell of the machine has been gradually replaced by plastic, wherein the inlet window and the control board are made of HIPS, the cross flow fan part is made of glass fiber reinforced ABS, and the outer shell is made of weather-resistant PP.
4, TV set
Mainly used in television sets: ABS, polyamide, polyacetal, modified polyphenylene oxide, polycarbonate, PET, PBT, mainly used in TV sets, knobs, dials, lenses, bobbins and transformers Shaft, bobbin, insulating sleeve, etc. TV shell with flame-retardant ABS or HIPS, ABS majority, China also has modified polyphenylene ether, but the higher the price.
5, laptop
Due to the heat dissipation of the notebook shell and the protection of the internal components of the machine, compared to other traditional appliances for the material requirements even more harsh.Most notebook shell material includes the following categories: ABS engineering plastics, modified PC, magnesium alloy, Titanium alloy, carbon fiber.
Which ABS and PC because of low cost, easy maintenance, is currently the most widely used notebook shell plastic.In addition to the computer case, the keyboard material is also the player most valued, in addition to commonly used ABS, as well as PBT, POM.
However, due to the heavy weight of ABS plastic, poor thermal conductivity, PC is more brittle, high-end products are gradually replaced by carbon fiber material.Carbon fiber notebook shell, compared to the traditional notebook shell, the thickness can be reduced by 50% -60%, weight loss 10 % -50% And has good acid and alkali resistance and corrosion resistance. Not only light and thin wear-resistant, but also greatly improve the service life.
The performance of carbon fiber is outstanding. With its application in more and more fields, its recycling problem has also been put on the agenda. Many global companies have developed a cost-effective carbon fiber recovery program and now can be used in the composite materials industry Some of the initial products.
It is worth mentioning that on January 9 this year, Dell announced at the 51st International Consumer Electronics Show (CES) one of two 'recycling' programs, promised to use 16,000 tons of marine plastic by 2018 , They are currently shipping the industry's first marine plastic package on the XPS13 2-in-1 device.
In the future, not only will the plastics we have eliminated in our household appliances be recycled, but even the housings in household appliances may be made of recycled plastics, and the value of plastics will be even greater.