来源网址：http://www.rsoau.com 2020-01-18 16:41:17
As we all know, how much harm white pollution does to the living environment of human beings, it is a principle that every human being must abide by to attach great importance to environmental protection.
Facing the increasingly exhausted oil resources, biodegradable materials as high-tech environmental protection products are becoming the research and development hotspot. Degradable plastics must meet the following requirements to enter the market:
(1) Practical, similar to the application performance of ordinary plastics;
(2) Degradability, which can be rapidly degraded in the natural environment after the function is completed and used, becomes a segment easy to be absorbed by the environment, and finally returns to nature;
(3) Safety, degradation process and residues after degradation are harmless to the natural environment or have no potential harm;
(4) The economy and price are similar to or similar to those of ordinary plastics.
然而，可降解塑料的价格太高了。生物降解塑料的价格比现有同类塑料产品高出50%以上，其中生物降解塑料的价格比现有塑料产品高出4 - 8倍，成为其推广应用的障碍。为了降低成本，保证产品的降解性能，淀粉生物降解塑料已成为全国关注的焦点。
However, the price of degradable plastics is too high. The price of biodegradable plastic is more than 50% higher than that of the existing similar plastic products, and the price of biodegradable plastic is 4 - 8 times higher than that of the existing plastic products, which is the biggest obstacle to its promotion and application. In order to reduce the cost and ensure the degradation performance of products, starch biodegradable plastics have become the focus of national attention.
Corn starch granule is a kind of natural polymer material which can be biodegraded completely, and it is widely used at present. It has many advantages, such as wide source of raw materials, low price, easy biodegradation and so on. It plays an important role in the field of biodegradable materials. Release the mechanical properties of various brands of starch plastics, which are usually similar to the application programs of traditional plastics at home and abroad, but its use is often unsatisfactory performance. One of its main disadvantages is the poor water resistance and wet strength of starch degradation plastics. Under the influence of reducing its mechanical properties, water is serious, and water resistance is the traditional advantage of plastics in the use process. Compared with common starch, high amylose has better water resistance, shear performance and film-forming performance, and has great development potential in the plastic industry.
The above is a detailed introduction of corn starch granules. To learn more, please visit the official website http://www.rsoau.com