While creating modern civilization, human has also brought about negative pollution effects. Plastic products are difficult to be recycled and the handling methods are mainly incineration and burial. Burning will produce a large number of toxic dioxins harmful gas, pollution of the environment; Buried polymers cannot be broken down by microorganisms in a short time and pollute the environment. Residual plastic products exist in the soil, hinder the development of crop root system and the absorption of water and nutrients, reduce soil permeability, and lead to crop yield reduction; Animals will die of intestinal obstruction after eating discarded plastic film; The loss or abandonment of synthetic fiber fishing nets and lines in the ocean has caused considerable harm to marine life, so it is imperativetopromote green consumption and strengthen environmental protection. Facing the increasingly depleted petroleum resources, biodegradable materials in line with the trend as high-tech products and environmental protection products are becoming a research and development hot topic.
However creature full biodegradable materials because of its characteristics cannot be 100% instead of the traditional oil raw materials, such as its physical properties (density, optical purity), processing properties (melt index, melting point, glass transition temperature, thermal deformation temperature), mechanical properties (tensile modulus, tensile strength, elongation at break), impact resistance (impact strength), heat resistance (crystallization) do not conform to the requirements of all kinds of production process. Based on this, the existence of biodegradable modified plastics can effectively meet the requirements of environmental protection and production.
PVC, for example, is a widely used plastic in industrial production and daily life, which brings a lot of convenience to human life, but also causes serious environmental problems. PVC does not have any process of decomposition or biodegradation, so it will keep PVC in any form of landfill and space. By adding ecologically pure additives, the new material is not only biodegradable and sustainable, but also has the ability to break down into particles in landfills. Degradable and disintegrated PVC plastic after waste can reduce the damage of waste PVC to the environment, so that our world less pollution, while keeping green and clean. To reduce landfills, governments and retailers around the world have come out in support of any PVC plastic product that is both sustainable and biodegradable. Inaddition, many famous enterprises around the world have also strengthened their commitment to environmental and social responsibility.