Prospect of replacing plastic packaging materials

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Prospect of replacing plastic packaging materials with corn starch resin 1. 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 "corn starch resin" successfully researched in Japan has broad development prospects. This resin is made from corn through plasticization. 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" caused by shaving and accumulation of impurities

at present, the number of plastic bags produced with corn starch 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 US $10billion each year

II. It is not advisable to "over package" commodities.

eliminating over packaging can not only greatly reduce the source of plastic packaging waste, but also greatly save the earth's resources. For example, under the condition of reasonable selection of packaging, it is completely possible to reduce the multi-layer of less sales packaging by conducting experiments under actual operating conditions. The reuse of plastic packaging is also a way to reduce the source of packaging waste

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, daily consumer goods with large sales volume and wide range have the possibility of packaging for reuse or refilling. For example, the washing products industry in foreign countries is rapidly turning to concentrated products and related refilling forms; Fabric softeners have been available in Europe and North America in the form of refilled concentrated products for many years, and have been recognized by the majority of consumers<1 integrated design/p>

IV. the recycling of plastic packaging wastes must take a comprehensive approach

because not all plastic packaging wastes have the value of recycling, especially a large number of mixed plastic packaging wastes and packaging materials (such as medicine bottles, pesticide bags, medical plastic wastes) containing toxic substances in the degradation process should not be treated by material recycling, It depends on chemical recycling or energy recycling

v. unlimited potential of degradable plastic packaging

at present, the country has listed degradable plastic packaging as a priority development project, and degradable plastic packaging has great market potential in agriculture, daily chemical, medical, food and other fields. Statistics show that in 2000, China's plastic packaging output was more than 3 million tons, and nearly 2million tons of plastic waste were 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 for solving plastic packaging wastes, and there are still limitations in packaging application performance, especially in the packaging of a variety of food, it still needs to be studied

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