Biological or natural degradation has become one of the development trends of disposable products. Tableware distribution, as a stable industry, more and more people are making disposable tableware. Facing the policy of using easily recyclable or degradable disposable tableware, many people don't know how to choose. The following focuses on the profits of processing degradable disposable tableware, To analyze the operability of these two products.
If the disposable tableware needs to be heated by microwave in use, the tableware must have a clear material description, that is, it can be heated in a microwave oven. Otherwise, it cannot be heated! Because if there is no logo, it is possible that once heated at high temperature, some plastics will release toxic substances and endanger the body.
Corn starch based degradable environment-friendly tableware is processed with natural corn starch and plant fiber as base materials, supplemented by biological polyester polyols and other substances. Its starch content is up to 80%, which can be naturally degraded in soil and natural environment, without pollution and damage to the environment. It saves oil and other non renewable resources. After being tested by the national authoritative testing department, all health physical and chemical indicators meet the national standards. It is an ideal substitute for the controversial "sterilized tableware" widely used in the catering market.
The disposable degradable lunch box made of natural materials is also called biological fully degradable lunch box. Biodegradable lunch box is an advanced environmental protection product. It takes starch as the main raw material, adds one-year plant fiber powder and special additives, and is processed by chemical and physical methods to make a biodegradable fast food box.
Now we use environmentally friendly tableware, which is environmentally friendly, hygienic, safe and non-toxic, and can reduce environmental pollution. The environmental protection tableware produced by Jiamei company is biodegradable disposable tableware.
In the face of increasingly prominent environmental problems, self-degradable daily necessities have attracted a lot of attention. Disposable tableware including paper, wood, straw, corn starch and biodegradable plastics have also attracted public interest. However, people It is found that the use of disposable chopsticks and other wooden tableware is restricted due to the waste of resources, while other biodegradable tableware is not popularized at present. Instead, crystal tableware has been promoted with high recycling value. Let’s analyze it together. Current status and prospects of degradable tableware.
In the forming process of thermoplastic, there are many factors, such as the volume change from crystallization, the strong internal stress, the large residual stress frozen in the plastic part, and the strong molecular orientation. Therefore, compared with thermosetting plastics, the shrinkage rate is larger, the range of shrinkage rate is wide, and the directionality is obvious. In addition, the shrinkage rate after forming, annealing or humidity regulating treatment is generally higher than that after thermosetting Sex plastic is big. The outer layer of the melt contacting with the surface of the mold cavity immediately cools to form a solid shell with low density. Due to the poor thermal conductivity of plastic, the inner layer of plastic parts is cooled slowly to form a high-density solid layer with large shrinkage. Therefore, those with thick wall, slow cooling and high-density layer will shrink greatly.
The two sessions of the National People's Congress of the Communist Party of China began. Representatives and members gathered in Beijing to make suggestions and suggestions on hot topics. A small edition summarized the proposals of the two sessions related to waste plastic workers.
1. Key words: garbage classification
Wang Menghui, Minister of the Ministry of housing and urban rural development, said on November 30, 2017: by 2020, all cities will fully implement the garbage classification system, and by 2035, all cities will fully establish the garbage classification system.
In this year's two sessions, representatives from all walks of life and many democratic parties have respectively promoted the compulsory classification of garbage from the aspects of legislation and fees. The proposals mainly focus on the following aspects: timely launching the legislation of compulsory classification of domestic garbage, focusing on garbage classification as an industrial chain, and producers' responsibility for the whole life cycle of products.
Academician pan Jianwei, member of the National Committee of the Chinese people's Political Consultative Conference and executive vice president of the Chinese University of science and technology, has called for garbage classification for several years in a row. Scientists can't solve the problem of the lack of energy on earth at present. By recycling, scientists can gain more time for exploring and using new energy.
Yin Ping, deputy to the National People's Congress and deputy chief engineer of Qingdao Institute of marine geology, China Geological Survey: the national compulsory domestic waste classification legislation is the guarantee to break through the current waste treatment dilemma, speed up the national compulsory domestic waste classification legislation, promote the legal environment construction of differentiated waste treatment charges and credit system, and finally build a "simplified" society meeting.