The hottest little eggshell helps bioplastics beco

2022-08-15
  • Detail

Small eggshell helps transform bioplastics into ideal packaging materials

release date: Source: network editor: Yu Jia browse times: 3299 copyright and disclaimer

core tip: the rangar research team at Tuskegee university is original and uses eggshell nanoparticles to toughen bioplastics. Small eggshell really turns bioplastics into ideal packaging materials. In addition to bioplastics, the rangari team is engaged in research on the use of eggshell nanoparticles to accelerate wound healing, bone regeneration and drug delivery through contact with people and things

[China Packaging News] rangar research team of Tuskegee university is unique in using eggshell nanoparticles to toughen bioplastics. Small eggshells really turn bioplastics into ideal packaging materials. In addition to bioplastics, the rangari team is engaged in research on the use of eggshell nanoparticles to accelerate wound healing, bone regeneration and drug delivery

eggshell is a kind of peculiar material. Its top has great strength, but it is easy to crack from the middle. Once the eggshell cracks, we will not hesitate to abandon it. The scientific report points out that adding small eggshell fragments to bioplastics can produce the first biodegradable packaging material that can be bent but not easy to break. At the 251st American Chemical Society International Expo, which rose to $831million, researchers reported on its results

Dr. Vijaya Ngari said, "we are focusing on breaking the eggshell into small components and adding them to the bioplastics we produce. These nano-sized eggshell fragments will increase the strength of the material and make it easy to circulate in the market. We believe that the above advantages and its biodegradability will make eggshell bioplastics a very attractive packaging material."

manufacturers worldwide produce about 300 million tons of plastic every year. Almost 99% of them use fossil fuels such as crude oil as raw materials. Once discarded, these petroleum based plastics will not be degraded for hundreds of years. If it is burned, it will release carbon dioxide causing greenhouse effect to the environment

some manufacturers are producing a kind of bioplastics that is easy to degrade in soil. This plastic comes from corn starch, sweet potato and other renewable plant resources. However, the strength and toughness of the above raw materials are not enough to be used in the packaging industry. Therefore, petroleum based materials still dominate the market, especially in grocery stores and retail stores that supply countless plastic bags

in order to find a solution, rangari and Boniface tiimob of Tuskegee University and their colleagues used a variety of polymers "Qiao Jinliang said. Finally, they found a mixture containing 70% PBAT and 30% PLA. Unlike other petroleum based plastics, PBAT is designed to degrade in soil within three months

although this mixture has the characteristics that many researchers have been looking for, they still hope to further enhance the toughness of the material. Therefore, eggshell nanoparticles came into being. They chose eggshell because it is porous, light, and easy to degrade the natural compound calcium carbonate, which is easy to cause white pollution

by crushing the clean eggshell in polypropylene glycol and then ultrasonic treatment, researchers obtained eggshell nanoparticles with a size of 350000 times the diameter of hair. Then they added these small particles to the above mixture of PBAT and PLA, and found that the toughness of bioplastics with eggshell fragments was 7 times that of ordinary bioplastics. They said that such flexible materials are ideal packaging materials for retail stores, grocery stores and food containers

Copyright © 2011 JIN SHI