Degradable shopping bags are not effective because of their poor mechanical properties. Because of the good mechanical properties, the polypropylene non-woven bag obviously has good strength and load-bearing capacity, and it is widely used in many fields.

Due to cost constraints and environmental protection requirements, most of the degradable shopping bags used at present are thin, soft, poor mechanical properties, and are not easy to reuse because they are reused no more than once. They also face many problems in the recycling process. The degradation conditions of degradable plastics are also harsh, which requires aerobic composting. It can be degraded into carbon dioxide, water, and minerals after half a year and no more than 12 months at most. Relatively speaking, non-woven bags can be reused more than 10 times under normal circumstances, easy to recycle and reuse, by adding biodegradable materials and calcium carbonate, talcum powder, and other inorganic substances can improve the environmental protection and economy of non-woven bags.

In terms of cost, performance, environmental protection, and recycling, it is not easy to solve the problem of white pollution by relying on current degradable plastics. The PKAT and PLA are faced with the problems of high cost and cannot be decomposed in the natural environment (recycling is required to degrade under certain conditions). At present, traditional plastics cannot be replaced, and degradable plastics are difficult to solve urgent problems. It is more important to scientifically and rationally reuse, recycle and sort traditional plastics and develop new degradation technologies. And the domestic polypropylene non-woven bag production technology mature, sufficient capacity, in the "ban on plastic", non-woven bags to replace the traditional ordinary plastic bags is undoubtedly a very good choice.

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