The hottest PET bottle recycling takes the road of

2022-08-09
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Explore the recycling of PET bottles and take the road of environmental protection editor's note: PET bottles are widely used because of their light weight, transparency and high strength, and the dosage continues to increase. The proportion of polyester used in PET bottles in various countries is about 25% - 60%. In 2002, the pet used in bottles in the world was about 8000 KT. It is estimated that 2 partial amplification. In 2005, the polyester used in PET bottles in the world exceeded 10000 kto. Its application fields include beverage, soy sauce and other condiments, alcohol and other food applications, as well as non food applications, such as detergent, cosmetics, medicine and other packaging

pet is a widely used thermoplastic polyester. It is estimated that the global pet production capacity in 2005 will increase by 32.1% over 2002, from 47500kt to 52850kt, and the output will increase by 24.8%, From 38 130kt to 4L 180kto, Chen said "In the process of imitation, the growth of PET production has exceeded the growth of its consumption in 2002, and the difference between the two is expected to be as high as 2200kt by 2005. China's demand for bottle grade PET in 2005 is estimated to reach 650000 tons, and the consumption of pet tons is more than 20billion, of which the proportion of PET bottles for beverages and beer is as high as 87%.

to sum up, the consumption of a large number of disposable pet bottles has brought serious recycling problems, and the recycling of PET bottles after consumption has become a hot topic It is a topic of increasing concern to the international community. Therefore, this issue focuses on the processing and molding process based on pet, and focuses on the recycling and technological innovation of PET bottles

the environmental protection and molding process of PET bottles

Pet plastics are widely used in the field of packaging, whether it is packaging film, coiled material, or beer bottles. But when these materials are discarded, they face the problem of how to deal with them. Through special alloying process, waste PET can be recycled and made into alloy materials blended with other plastics

The use of PET bottles has increased greatly in recent years. PET bottles have the following characteristics: good transparency; With surface gloss; High safety; Light weight; It can enhance the image of goods; Excellent gas barrier performance, etc. As a beverage container, PET bottles have excellent comprehensive properties. In addition to pressure resistant carbonated drink bottles, fruit juice drink bottles, oolong tea drinks and other tea series drink bottles, mineral water bottles, coffee drinks and other heat-resistant bottles, especially carbonated drink bottles with fruit juice, soda ice cream and other heat-resistant pressure resistant bottles have also been developed. The use of PET bottles has increased sharply, accounting for more than 50% of the total volume of such containers by 2001

● research on the molding process of nano polyester PET bottles

● analysis of important factors affecting the quality of PET bottle chips

● sig aseptic filling and plasma coating technology of PET bottles

● oxygen absorbing EVOH resin and its application in PET bottles

● application of PET bottle single-layer and multi-layer technology in beer packaging

● processing and molding technology of pharmaceutical high barrier PET bottles

● redundancy of PET bottle hot filling production line

● pet Detailed explanation of bottle making and packaging process

● performance of epoxy modified polyester PET bottles

● surface coating technology for improving barrier property of PET bottles

exploration of PET bottle recycling technology

for many years, polyethylene terephthalate (PET) has been enjoying continuous market development in the packaging industry. For example, in 2002, pet consumption reached 2.1 million tons, or 51% of the total plastic consumption in the European blow molding market. In order to maintain this momentum, if the inorganic raw material composition is nano fineness, it is not only necessary to continuously optimize materials and applications, but also to further develop PET recycling routes and new markets for recycled materials. Under such circumstances, the market trend further develops to the miniaturization and lightweight of containers and barrier containers represented by hot drink bottles. The rapid growth of PET bottle consumption, the improvement of collection system and the changes in regulations in Europe have provided new opportunities and challenges for the rapidly developing PET recycling industry. At present, the recycling technology of PET bottles has reached a very high level, mainly including physical recycling and chemical recycling. Most of the physically recycled PET bottles are used to produce fiber, but some are directly used in the production of plastic products, including non food packaging containers; Chemical recovery refers to the hydrolysis, alcoholysis or alkaline hydrolysis of clean pet on the basis of physical recovery. Its main products are used for re polymerization into pet or the production of other chemicals. ■ chemical recovery: depolymerization chemical recovery ethylene glycol alcoholysis diethylene glycol alcoholysis alkali hydrolysis chain extension chemical recovery diisocyanate bisoxazoline homotetracarboxylic anhydride four functional epoxy additive ■ physical recovery: simple recovery method dissolution/reprecipitation method melt extrusion method blending PP-g-MAH modified blending SEBS-g-MAH toughened solid phase extrusion modification

● PET bottle recycling sorting and cleaning

● recycling of waste PET plastic

● recycling and processing examples of PET bottles

● waste PET use and recycling technology

● processing and recycling examples of PET bottle chips

● cleaning of label paper and pollutants on PET bottle chips

● application and progress of PET bottle recycling technology (upper) (lower)

● professional recycling technology innovation of plastic products pet waste

● new recycling technology of waste PET bottle chips (upper) (lower)

● case analysis of product safety in PET recycling (Part 1) (Part 2)

foreign innovative technology development of PET bottles

● recycling technology of PET bottles ekopet

● new process helps reduce the resin consumption of PET bottles

● innovative technology application of waste PET bottles abroad

● Japan accelerates the development of recycling of PET bottles

● Japan develops new technology of PET bottle recycling

● Germany develops new technology of pet/nylon bottle recycling and processing

conclusion traditionally, waste plastics regardless of their types Performance and use are all discarded, landfilled or incinerated, causing serious environmental pollution to the society. Due to the requirements of environmental protection, the enhancement of public awareness of environmental protection, the energy crisis, the urgent need of resource utilization and the reduction of land resources, with the increasing consumption of polyester bottles, the recycling of PET bottles is receiving more and more attention, and its recycling has become a problem that must be solved. Because there are many methods for recycling PET bottles, this paper just classifies the main methods. Many methods have entered the commercialization process, and their recycling application technology is also very mature, resulting in a wide range of products. Therefore, we have reason to believe that the rapid development of the global beverage industry will increase the demand for PET packaging, especially PET bottles, and may produce a large amount of pet waste, but there is no need to worry about the environmental pollution caused by pet waste being pushed into the next clamping device, because driven by recycling technology, market demand, early separation and other factors, the pet waste recycling industry will not only achieve rapid development, but also

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