On the 16th, the news from the Changchun Institute of Applied Sciences of the Chinese Academy of Sciences revealed that a completely biodegradable material based on raw corn starch was successfully developed by the institute and passed the expert appraisal organized by the Science and Technology Department of Jilin Province. This integrated and innovative technology enables the process to achieve environmental protection. The products are fully biodegradable and the overall level is leading in China.
With the gradual depletion of oil resources and the continuous rise of environmental pressure, the search for sustainable resources has become one of the themes of human society's 21st century development. Plants convert solar energy into biomass through photosynthesis, and the full use of plant resources is the best way for sustainable development. Jilin Province is located in the golden corn belt and has obvious resource advantages. Using corn as raw material, through theoretical innovation and technological integration and innovation, the development of fully biodegradable materials and the preparation of one-off consumer products can meet people’s increasing consumption needs and meet the development strategy of “corn economyâ€, which is to promote agriculture. Planting structure adjustment, taking the "sustainable development" road, and governing "white pollution" are important measures.
With this as a goal, the Changchun Institute of Chemical Technology of the Chinese Academy of Sciences undertook the Jilin Province Science and Technology Development Program “Development and Development of Starch-Based Completely Biodegradable Materials†in 2002. After several years of hard work, researchers used raw corn starch as raw material, water as foaming agent, nanoparticle as foam nucleating agent, optimized combination of screw components of twin-screw extruder and special structure for forming mold. Designed and prepared a foam cushioning material and a disposable lunch box with a starch content of more than 80%.
According to reports, the density of foam prepared by them is adjustable in the range of 0.04 to 0.4 g/cm3. The disposable tableware is inspected by the National Environmental Protection Product Quality Supervision and Inspection Center and meets the requirements of GB18006.1-1999 "One-time degradable tableware testing conditions" standard. The request. In addition, the researcher also adopted a new type of plasticizer and used an electromagnetic dynamic blown film unit to enable the plasticization of starch to achieve a blown film of starch. The developed film has good light transmission and high strength.
Reprinted from: China Chemical News
Plush toys are made of plush fabrics, other textile fabrics, PP cotton as the main material. Various styles, according to the length of plush different, divided into plush toys and super soft short plush toys; According to the source of modeling, it is divided into animal plush toys and cartoon characters plush toys; According to the different fillings are divided into PP cotton plush toys and foam pellet plush toys.Plush toys also have a great influence on children's education. When children play, they sometimes talk to them. Don't underestimate this communication mode. It can let children learn more ways of language expression. Plush toys can encourage children to use their senses to touch the world, such as color to stimulate their vision, crisp and pleasant sound to stimulate hearing, soft and flexible fillers to stimulate their touch, help them to cooperate with the body's various sensory responses, to contact and recognize everything in the world. Different plush toys are effective tools to help children understand the world. Plush toys play a soothing and comforting role, for example, the baby who is not easy to fall asleep, when you coax him to sleep, you can consider putting a Plush Toy beside him, let him hold or touch, so as to calm the child's mood, let him relax.
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Look at this owl plush toy, using high-end crystal eye technology, very bright, look very godly, feel able to communicate with them.The eyes of inferior plush toys are rough and dull, with bubbles in them.Look at the nose, hand-sewn, very fine workmanship, neatly arranged, to make a full and delicate nose. The nose of inferior plush toy, use coarse cloth, filler also is insufficient plump. Whether from the material selection or to the workmanship, we are strict requirements, to ensure that the production of high-quality products, to meet the needs of customers.
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