Development trend of plastic packaging technology
first, the prospect of replacing plastic packaging materials with corn starch resin is promising
at present, many countries in the world are carrying out research on replacing existing plastic packaging with "biodegradable resin". Recently, the successfully researched "corn starch resin" in Japan has broad development prospects. This resin ③ The fixture itself is a locking mechanism, which is made of corn and plasticized. The packaging materials made of it can be disposed of by burning, biochemical decomposition and insect eating, so as to avoid the harm of "white pollution"
at present, the number of plastic bags produced with corn resin in Japan is almost the same as that produced with plastic granules
the world produces about 100million tons of plastic products every year, including 30million tons of disposable packaging materials. Solving the pollution caused by these materials will cost a lot of social costs. If corn resin can successfully replace some of the packaging plastics, it is estimated that there will be a market worth $10billion per year
second, it is not advisable to "over package" commodities.
eliminating over packaging will not only greatly reduce the source of plastic packaging waste, but also greatly save earth resources. For example, under the condition of reasonable selection of packaging, it is entirely possible to reduce the multilayered sales packaging. The reuse of plastic packaging is also a way to reduce the source of packaging wasteA) oil pipe is the link between oil pump and jaw
third, adhere to the reuse of plastic packaging
in fact, the reuse of plastic packaging has been an effective method in transportation packaging. In terms of sales packaging, there is also the possibility of implementation, especially for consumer goods with large sales volume and a wide range of daily necessities, there is the possibility of packaging reuse or refilling. For example, the foreign washing products industry is rapidly turning to concentrated products and related refilling forms. Fabric softeners have been supplied in the form of refilling concentrated products in Europe and North America for many years, and have been recognized by the majority of consumers
fourth, the recycling of plastic packaging waste must take a comprehensive approach
because not all plastic packaging waste has the value of material recycling, especially a large number of mixed plastic packaging waste and packaging materials packaging toxic substances (such as medicine bottles, pesticide bags, medical plastic waste), should not be treated by material recycling, It depends on chemical recycling or energy recycling
v. the potential of degradable plastic packaging is unlimited
previously, the country has listed degradable plastic packaging as a priority area for development. Degradable plastic packaging has great market potential in agriculture, daily chemical, medical, food and other fields. It is predicted that in 2000, China's plastic packaging output will be more than 3 million tons of experimental machines from Jinan new era Gold Testing Instrument Co., Ltd., and nearly 2 million tons of plastic waste will be generated. Therefore, the development prospect of degradable plastic packaging is broad. However, it should be pointed out that degradable plastics can not be regarded as a panacea to solve plastic packaging waste, and there are still limitations in the application performance of packaging, especially in the packaging of a variety of food, it still needs to be studied
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