With growing global environmental problems, in 2019, the world began to reduce the use of disposable plastic policies in succession.

At the end of last year, British petroleum (BP) announced that developed a BP Infinia plastic waste recycling technology. The technology can make the current difficult to recycle waste PET plastic (black food tray and colored bottles, for example) into a renewable raw materials are interchangeable with conventional hydrocarbon resources. Subsequently, the recycling of raw materials can be used to make the new PET packaging can be recycled repeatedly, in order to meet the demand of the cycle of recovery.

Why did you choose a PET?

It is understood that the PET is the most commonly used in drinks and rigid food packaging plastic. Global per use about 27 million tons of PET, most of which (23 million tons) used in the manufacture of the bottle.

Figure source：包装经理人

For packaging manufacturers and developers, PET feature makes it have excellent performance in the product packaging design and performance, can meet all kinds of complex product in different package sizes on demand.

First of all, the PET is famous for its transparency. With changing consumer trends in recent years, the consumer to see more and more interested in "real" food products. And PET transmittance can reach 90%, product good transparency, high low haze, gloss, therefore, transparent, lightweight and unbreakable PET packaging, has become a perfect alternative to glass and other plastic resin.

Second, PET chemical stability, good resistance to oil, acid, alkali, salt and other organic and inorganic chemical solvent corrosion performance, will not react with drinks.

At the same time, the PET high mechanical strength, compressive aseismatic capability is strong, not easy to fall, broken and light quality and help its transportation cost greatly reduced, make it has more advantage in transportation and logistics.

But PET barrier property is not high enough to satisfy the alcohol, cosmetics, medicine, high barrier property of packaging materials. With the continuous development of technology and research, researchers are also continue to improve the barrier property of PET materials.

Figure source：Google

例如一个应用实例就是通过共混改善材料的阻隔性能。PEN的阻隔性很好，其对水的阻隔性是PET的3-4倍，对氧气和二氧化碳的阻隔性是PET的4-5倍，因此可用PEN改良PET，提高PET的阻隔性和热性能。除此之外，在PET包装材料上涂覆一层高阻隔性树脂（如聚偏氯乙烯）乳胶，也可有效改善PET材料的阻隔性能。

对于消费者而言，一个好的包装必须首先发挥其基本功能：即保护及保存其内含产品的口味、颜色、样式和其他特征完好无损。其次，随着人们环保意识的日益增强，包装材料能否回收和再利用也成为消费者选择的重要依据之一。他们也希望通过自己日常回收行为来支持环境保护。而PET的诸多特性也让消费者放心。

对环境造成的影响

可持续包装除了要发挥其基本功能，还要考虑其全部生命周期对环境的影响，即产品（或服务）从取得原材料，经生产、使用直至废弃的整个过程对环境的影响。

Figure source：Dreamstime

PET packaging is becoming more and more light and durable, so it can efficiently transport products, and no longer need to pass the secondary packaging, thus greatly reduces the product in the process of transportation fuel demand and greenhouse gas emissions.

Original PET and recycled PET specific effects, can also through the life cycle assessment, relative index and social impact study measure. For example, if in about 200000 cities (for example, in providence, Rhode Island) everyone in recycling a PET bottled water every day, so this kind of recycled material processing for the new material, you will find the PET recycling how amazing the effects on the environment and economic.

Made of recycled PET products

Nowadays, PET resin and packaging production efficiency is higher and higher, use less energy and resources than ever before. Most of the packaging manufacturers began to realize that after save it contains product safety, PET bottles can be recycled and made into a clean raw materials.

Figure source：NAPCOR

And for all consumers, when you buy the packed in PET products, it also means that you select a recyclable packaging.

Use after put it in the garbage cans, recycle PET containers will be collected, classification, processing, cleaning, and then be made into various new products, including clothing and soft furniture made of carpet fiber, fiber fill and sleeping bag, packing tray, food and non-food packaging bottle, and thermoforming packaging, such as glass and to-go container.

Recycled PET packing makes it far away from the landfill, but its role is far more than that. Recycled PET resin is a kind of valuable raw materials, can use repeatedly repeatedly and processing in packaging products.

Recently, Thailand for DORA company through subsidiaries Indorama Ventures packaging (Philippines) company (IVPPC) and Coca-Cola beverages in the Philippines founded a company called PETValue Philippines Corp., a joint venture.

Near new joint ventures in Manila will create a new green synthesis recycling plant, using the most advanced recycling technology for PET plastic bottle recycling, is expected to reach 30000 tons/year production capacity, annual output will reach 16000 tons of recycled PET resin, is expected to put into use in 2021.

Reference source:

BP to develop the new technology of PET plastic waste recycling ", October 25, 2019, the Chinese net

Founded by DORA, Coca Cola, PET recycling company ", on March 16, 2020, the Chinese net

Several methods improve PET barrier property, in October 2001, the chemical abstract

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