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中文名稱：聚（D,L-丙交酯）

英文名稱：Poly(D,L-lactide)
 

聚丙交酯是一種新型的生物降解材料，使用可再生的植物資源（如玉米）所提出的淀粉原料制成。淀粉原料經(jīng)由糖化得到葡萄糖，再由葡萄糖及一定的菌種發(fā)酵制成高純度的乳酸，再通過化學(xué)合成方法合成一定分子量的聚乳酸。其具有良好的生物可降解性，使用后能被自然界中微生物完全降解，最終生成二氧化碳和水，不污染環(huán)境，這對(duì)保護(hù)環(huán)境非常有利，是公認(rèn)的環(huán)境友好材料。普通塑料的處理方法依然是焚燒火化，造成大量溫室氣體排入空氣中，而聚乳酸塑料則是掩埋在土壤里降解，產(chǎn)生的二氧化碳直接進(jìn)入土壤有機(jī)質(zhì)或被植物吸收，不會(huì)排入空氣中，不會(huì)造成溫室效應(yīng)。

Polylactide is a new biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Glucose is obtained from starch raw material through saccharification, and then high-purity lactic acid is produced by fermentation of glucose and certain bacteria, and then polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability. After use, it can be completely degraded by microorganisms in nature, and finally produce carbon dioxide and water, which does not pollute the environment, which is very beneficial to environmental protection. It is recognized as an environment-friendly material. The treatment method of ordinary plastics is still incineration and cremation, resulting in a large number of greenhouse gases discharged into the air, while polylactic acid plastics are buried in the soil for degradation, and the generated carbon dioxide directly enters the soil organic matter or is absorbed by plants, which will not be discharged into the air and will not cause the greenhouse effect.