Panyu entrepreneurs create "stone bags" environmentally degradable

[China Packaging Network News] According to report, entrepreneurs in Shawan Town, Panyu District, Guangzhou, Zeng Cong made stone-based biodegradable shopping bags. "This is not a plastic bag, but a stone bag!" Zeng Cong introduced his own shopping bag products.

Stone-moulded masterbatch processed and refined with stone is used as raw material for environmental protection "stone bags".

Stone bag production workshop

Hard stones can be made into plastic bags? It sounds like a fantasy, but it was realized by the entrepreneur and his team. The “stone bags” are non-toxic and odorless, and they can be degraded through light and soil burial. Environmental protection, favored by the market. It is reported that the company supplies 110 million stone bags every month to markets across the country.

"Plastic bags are the necessities of life. How can we fundamentally solve the problem that plastic bags are not environmentally friendly?" Zeng Cong believes that it is necessary to reduce the excessive reliance on petroleum raw materials for plastics from the source, so he turned his attention to the stones in the mountains and plains. Try this as a substitute. After eight years of hard work, Zeng Cong and his team have made breakthrough progress, making stone a certain degree of fine calcium carbonate high energy masterbatch, and producing stone plastic products instead of plastic. Zeng Cong said that this technology has significantly reduced the consumption of crude oil and carbon dioxide emissions.

How to make a hard plastic flexible plastic bag? It is understood that the main process is calcite (the main component of calcium carbonate) ground into nano-scale stone powder, a variety of polymer materials and calcium carbonate evenly mixed to form stone plastic masterbatch change Sex materials, the addition of certain elastomers and resins and other niche materials play a role in adhesion, elasticity, and degradation, and finally produce stone bags.

According to reports, the company has obtained nearly one hundred patents for inventions and utility models since its establishment. The company has also been recognized as a high-tech enterprise in Guangdong Province and has become the chief editor of local standards in Guangdong Province, leading the formulation of standards for stone and plastic products.

Secret "stone bag"

Is not expensive? High-tech products, "stone bag" is not very expensive? Zeng Cong said that the price of stone plastic masterbatch is only half of the traditional petroleum-based products. Currently, "Stone Bags" has been cooperating with many domestic large-scale supermarkets and well-known brands. People usually take delivery bags and some convenience store shopping bags are "stone bags." In the future, community food markets may also be able to use them.

Environmental protection? The raw materials for stone bags can be directly degraded by thermal oxygen and directly converted into calcium carbonate after incineration. Naturally, they can be decomposed under natural light conditions. The "stone bag" can also achieve photodegradation: hang the stone bag with a clothes hanger and hang it on the balcony. After a few months, it will break in one fell swoop.

Is it strong? Experts explained that calcium carbonate is a white powder that does affect the foldability and wear resistance of the product. Some of the early stone bag products have insufficient abrasion resistance and strength, which is related to the particle size and dispersion effect of calcium carbonate powder. After 2000, with the maturity of nanotechnology, powder particles can be made sufficiently fine to disperse evenly in plastic materials, and transparency and wear resistance have been greatly improved.