Waste plastic and Development of bottles

ByPBM Group

Waste plastic

We all know that a large number of food packaging for the three kinds of plastic products: polyvinyl chloride, polyethylene, polystyrene. Short period of time used to hold cooking oil, the human health is no hindrance. However, with them to long-term oil loaded, will pollute the food, causing harm to the human body.
This is because these bottles have a high transparency, easy to aging and other characteristics, in the air will be oxygen, ozone, the role of ultraviolet light to produce a strong smell, coupled with the aging of the polymer itself, if used for long-term storage of cooking oil, easy to make These foods are deteriorated.
In addition, the vinyl chloride element in the vinyl chloride is not only toxic, but also in acid and grease easily decomposed and precipitate toxic hydrogen chloride and chlorine, polyvinyl chloride added in the plasticizer, such as phthalates, Are toxic, as well as as a stabilizer of lead, cadmium and organic tin, are toxic chemicals, toxicity is large, and easy to dissolve in oil. Although the plastic polystyrene is a low toxicity substance, but its composition of styrene and volatile components of ethylbenzene, cumene are toxic, and very easy to dissolve in the oil. Plastic Polyethylene itself is not toxic. However, it is in contact with grease, can break down the precipitation of low molecular weight compounds, these low molecular elements dissolved in oil will produce toxicity.

Forming principle
Plastic bottles are filled by the gun mold through a certain temperature pressure blow molding, can be formed by the preform, can also be directly formed by injection molding a machine to form.

Development of bottles

The use of coating technology to create a barrier plastic bottle process has shown a downward trend, has Germany Krones AG, the United States Tetra Pak (Tetra Pak, Illinois) began to cut production scale. Krones and Coca-Cola Company jointly developed the BestPET technology, in the outer surface of the bottle coated with silica-containing coating. A spokesman for the company said that because of the high cost, the oxygen barrier performance is not sufficient, the technology has become obsolete, Tetra Pak has also applied to the PET bottle wall Glaskin silica plasma coating system research work.
In addition, the Italian SIPA company for the PEN bottle to develop a new type of barrier dipped material, its trade name Smart Coat, the process is: blow molding process after the bottle, after dipping process, and then immediately into the infrared The bottle is quickly dried in the oven, and after a second coating, the bottle is cured under ultraviolet radiation, and a standard dip can handle about 12,000 plastic bottles per hour. One of the objectives of this PET bottle is to fill carbonated beverages, according to the company, 0.5 liter capacity, single use through the dipped PET bottles, packaged goods shelf life of up to one year, without dipping PET bottles of goods shelf life of only 7 weeks.
British Innovative Plastics Technologies (AFT) has developed a patented water-based flow coating process that allows the outer surface of a special barrier thermoplastic resin preform to be coated with the preform after the coating process. Curing occurs, the preform can be blown twice on standard processing equipment. APT claims that the use of this coating process compared with the untreated PET bottles, the barrier performance of CO increased by 3-4 times, Husky is negotiating with APT company to transfer technical matters to obtain this Coating equipment business license, the design capacity of the equipment is 30,000 per hour processing preform, APT company director Robert. Lee said. This technology has been purchased by a leading manufacturer of beverages for use in the processing of non-alcoholic beverage bottles.
Germany Aachen University Institute of Plastics Processing (IKV) has developed its plastic bottle inner wall plasma coating technology-PECVD, transferred to the Sidel company, IKV also developed a plastic bottle outer wall coating technology, using a 20- 150nm barrier coating, similar to the inner wall coating process, PET bottles can improve the performance of 4 times the CO barrier performance, the technical production system installation cycle of 15 seconds, regardless of 10,000 bottles / sales case, the researchers set The development goal is to reduce the processing cycle time within 10 seconds, the application of more powerful vacuum pump, and other improved detection device.

Crossing the Pacific Ocean

British explorer David de Rothschild has a new challenge, that is, driving a 12,000 abandoned plastic bottles tied to the sailing, across the Pacific, the whole more than 17,000 km. More than a month later, this plastic ship finally for the first time on the shore, the supply. Since the March 24 departure from the San Francisco port, the “Platty” has arrived in the Pacific island of Kiribati’s Christmas Island, which is the first six crew members on board the ship. Although bundled with waste plastic bottles, the 18-meter-long “Platty” number has proven the ability to fight against storms. The ship is also equipped with a number of portable computers, GPS and satellite phones, while the power supply for them, is the ship’s solar panels and two sports bikes.

Clothing fabrics

Packaging health bottle / ball bottle
Waste plastic bottles can be recycled, this we all know, but specifically in which aspects? This we are not very clear, plastic bottles are recycled after a lot of the use of value, which can also be drawn plastic bottles into yarn, turned into a fabric, is not it feel amazing?
Plastic is one of the great inventions of mankind, but also because it is difficult to degrade and become a headache source of garbage and harm the environment. In fact, waste plastic is not rubbish, through environmental protection technology can turn waste into treasure. The main material of plastic bottles is PP (polypropylene) and PET (polyethylene terephthalate), while the latter is one of the important raw materials for making fabric.
According to the Beijing Institute of Textile Science, this dress is very cool to wear, because this fabric has a “moisture fast dry” function, so that consumers wear on the body both environmentally friendly and comfortable. “Our corporate philosophy is green, not only the use of renewable resources as raw materials, the production process is also focused on creating non-discharge standards.” Mao Youjun said, “International production of polyester is the traditional practice of chemical refining, and we through technological innovation , The quality of the product has been able to meet the standards of primary products.

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