What is the principle and method of making degradable plastics

Updated on technology 2024-03-30
6 answers
  1. Anonymous users2024-02-07

    The degradation process of environmentally degradable plastics mainly involves biodegradation, photodegradation and chemical degradation, and these three main degradation processes have synergistic, synergistic and coherent effects with each other. For example, photodegradation and oxide degradation often occur simultaneously and mutually reinforcing; Biodegradation is more likely to occur after the photodegradation process.

    Degradation of polymers refers to the process of breaking the macromolecular chains of polymerization due to chemical and physical factors. The degradation process in which polymers are exposed to environmental conditions such as oxygen, water, radiation, chemicals, pollutants, mechanical forces, animals such as insects, and microorganisms is called environmental degradation. Degradation.

    The molecular weight of the polymer decreases, and the physical properties of the polymer material decrease, until the polymer material loses its usability, which is also known as the aging and degradation of the polymer material.

    There is a direct relationship between the aging and degradation of polymers and the stability of polymers. The aging and degradation of polymers shorten the service life of plastics. To this end, since the advent of plastics, scientists have been committed to the anti-aging of such materials, that is, the research of stabilization, in order to produce highly stable polymer materials, and scientists from various countries are also using the aging and degradation behavior of polymers to compete to develop environmentally degradable plastics.

    The main application areas of degradable plastics are: agricultural mulch film, various plastic packaging bags, garbage bags, shopping bags in shopping malls and disposable tableware.

  2. Anonymous users2024-02-06

    How does the degradation process of plastics work?

    The core principle of ecological plastic technology is to add the company's independent intellectual property rights to the decomposition masterbatch in the production process of ordinary polyethylene products, without changing the performance of the product, in just a few years, the original decomposition of polyethylene in nature will be degraded in the environment.

    The degradation process mainly involves biodegradation, photolysis and chemical degradation, and these three main degradation processes have synergistic, synergistic and consistent effects with each other. For example, photodecomposition and oxide decomposition always occur at the same time, reinforcing each other; Biodegradation tends to occur after the photolysis process.

    The decomposition of polymers is the process by which the macromolecular chains of the polymerization are severed due to chemical and physical factors. Environmental decomposition is a process in which the polymer chain is cut when exposed to environmental conditions such as oxygen, water, radiation, chemicals, pollutants, mechanical forces, insects, and other animals and microorganisms is called environmental decomposition. Decomposition is also known as aging decomposition of polymer materials before the molecular weight of the polymer is reduced, the physical properties of the polymer material are reduced, and the polymer material loses the possibility of use.

    The degradation of polymers is directly related to the stability of polymers. The aging and decomposition of polymers can shorten the life of plastics. Therefore, since the advent of plastics, scientists have been committed to preventing the aging of this material, that is, the research of stabilization, and the manufacture of polymer materials with high stability, and scientists from various countries are also using the aging and decomposition behavior of polymers to compete for the development of environmentally decomposed plastics.

    The main application fields of degradable plastics are agricultural mulch film, various plastic packaging bags, garbage bags, shopping bags in shopping malls and disposable tableware. However, the degradation time of biodegradable materials has a great relationship with the environment. So, what are the key conditions for the decomposition cycle?

    For example, there is in compost.

    Substances that need to be decomposed, such as starchy materials, are reacted by hydrolysis in water.

    Substances that are processed, substances that become larger or smaller by severing molecular bonds, etc. Specifically, let's see what the substance you are asking about is.

  3. Anonymous users2024-02-05

    Generally, it is put into the degradation machine of the rubber mill industry for degradation, and in this process, the machine will keep rotating and compressing, and after a while, the plastic will be degraded by the beam.

  4. Anonymous users2024-02-04

    It is carried out by exposure to the sun, and then through some chemical reactions, and also combined with some equipment to make the degradation of plastic more perfect.

  5. Anonymous users2024-02-03

    In fact, it is done slowly, and it is all through some chemical reactions that can be achieved to achieve the purpose of degradation.

  6. Anonymous users2024-02-02

    It should be gradually dissolved and consumed by organic organisms in the soil, and then converted into inorganic matter.

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