生物降解颗粒在生产后可分类哪些类型？

Biodegradable plastics refer to a class of plastics that are degraded by the action of naturally occurring microorganisms such as bacteria, molds (fungi), and algae. The ideal biodegradable plastic is a polymer material with excellent performance, which can be completely decomposed by environmental microorganisms after being discarded, and Z is eventually inorganic to become a component of the carbon cycle in nature. "Paper" is a typical biodegradable material, while "synthetic plastic" is a typical polymer material. Therefore, biodegradable plastics are polymer materials that have both the properties of "paper" and "synthetic plastics".

生物降解塑料又称生物分解塑料，指在自然界如土壤和/或沙土等条件下，和/或特定条件如堆肥化条件下或厌氧消化条件下或水性培养液中，由自然界存在的微生物作用引起降解，并Z终完全降解变成二氧化碳（CO? ）或/和甲烷（CH?）、水（H?O）及其所含元素的矿化无机盐以及新的生物质的塑料。

Biodegradable plastics, also known as biodegradable plastics, refer to plastics that are degraded by natural microorganisms under natural conditions such as soil and/or sandy soil, and/or specific conditions such as composting or anaerobic digestion, or in aqueous culture solutions, and ultimately completely degrade into carbon dioxide (CO?) or/and methane (CH?), water (H? O), and mineralized inorganic salts of the elements contained therein, as well as new biomass.

按原料成分来源分类，生物降解塑料可分为生物基生物降解塑料及石化基生物降解塑料两类。

According to the source classification of raw materials, biodegradable plastics can be divided into two categories: bio-based biodegradable plastics and petrochemicals based biodegradable plastics.

生物基生物降解塑料主要可分为四类：一类为天然材料直接加工得到的塑料；第二类为微生物发酵和化学合成共同参与得到的聚合物；第三类为由微生物直接合成的聚合物；第四类为以上这些材料共混加工得到的或这些材料和其他化学合成的生物降解塑料共混加工得到的生物降解塑料。

Biodegradable plastics based on biological materials can be divided into four categories: one is plastics directly processed from natural materials; The second category is polymers obtained through microbial fermentation and chemical synthesis; The third category is polymers directly synthesized by microorganisms; The fourth category is biodegradable plastics obtained by blending these materials or by blending these materials with other chemically synthesized biodegradable plastics.

石化基生物降解塑料是指以化学合成的方法将石化产品单体聚合而得的塑料，如PBAT、聚丁 二酸丁二醇酯（PBS）、二氧化碳共聚物（PPC）等。

Petrochemical based biodegradable plastics refer to plastics obtained by polymerization of petrochemical product monomers using chemical synthesis methods, such as PBAT, polybutylene succinate (PBS), carbon dioxide copolymer (PPC), etc.