生物降解是指自然界中存在的微生物在土壤和/或沙土等自然條件下，和/或堆肥條件或厭氧消化條件或水培養(yǎng)液等特定條件下的作用導(dǎo)致降解，并完全降解為二氧化碳(CO?)或/和甲烷(CH?)、水(H?O)及其所含元素的礦化無(wú)機(jī)鹽，以及新的生物質(zhì)塑料。而生物降解塑料是指在細(xì)菌、霉菌（真菌）和藻類等天然微生物的作用下降解的一類塑料。下面來(lái)講解下生物降解塑料的相關(guān)分類內(nèi)容吧。

Biodegradation refers to the degradation of microorganisms existing in nature under natural conditions such as soil and / or sandy soil, and / or composting conditions, anaerobic digestion conditions or water culture medium, which is completely degraded to carbon dioxide (co?) And / or methane (CH) Mineralized inorganic salts of water (H? O) and its elements, as well as new biomass plastics. Biodegradable plastics refer to a kind of plastics degraded by natural microorganisms such as bacteria, molds (fungi) and algae. Let's explain the relevant classification of biodegradable plastics.

根據(jù)原料來(lái)源，生物降解塑料可分為生物基生物降解塑料和石油化工基生物降解塑料兩大類。

According to the source of raw materials, biodegradable plastics can be divided into two categories: Bio based biodegradable plastics and petrochemical based biodegradable plastics.

生物基可降解塑料主要可分為四類：一類是天然材料直接加工而成的塑料；二是通過(guò)微生物發(fā)酵和化學(xué)合成得到的聚合物；三是微生物直接合成的聚合物；第四類是通過(guò)將這些材料混合或?qū)⑦@些材料與其他化學(xué)合成的生物降解塑料混合而獲得的生物降解塑料。

Biodegradable plastics can be divided into four categories: one is plastics directly processed from natural materials; The second is the polymer obtained by microbial fermentation and chemical synthesis; Third, polymers synthesized directly by microorganisms; The fourth category is biodegradable plastics obtained by mixing these materials or mixing these materials with other chemically synthesized biodegradable plastics.

石油化工類生物降解塑料是指石油化工單體經(jīng)化學(xué)合成聚合而成的塑料，如PBAT、聚丁二酸丁二醇酯（PBS）、二氧化碳共聚物（PPC）等。

Petrochemical biodegradable plastics refer to plastics formed by chemical synthesis and polymerization of petrochemical monomers, such as PBAT, polybutylene succinate (PBS), carbon dioxide copolymer (PPC), etc.

根據(jù)生物降解工藝分類，生物降解塑料可分為完全生物降解塑料和破壞性生物降解塑料兩大類。破壞性生物降解塑料目前主要有淀粉改性（或填充）聚乙烯PE、聚丙烯PP、聚氯乙烯PVC、聚苯乙烯PS等。

According to the classification of biodegradation process, biodegradable plastics can be divided into completely biodegradable plastics and destructive biodegradable plastics. At present, destructive biodegradable plastics mainly include starch modified (or filled) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, etc.

全生物降解塑料主要由天然高分子（如淀粉、纖維素、甲殼素）或農(nóng)副產(chǎn)品經(jīng)微生物發(fā)酵或合成可生物降解的高分子材料制成，如熱塑性淀粉塑料、脂肪族聚酯、聚乳酸、淀粉/聚乙烯醇等.屬于這種塑料。

Fully biodegradable plastics are mainly made of natural polymers (such as starch, cellulose, chitin) or agricultural and sideline products through microbial fermentation or synthetic biodegradable polymer materials, such as thermoplastic starch plastics, aliphatic polyester, polylactic acid, starch / polyvinyl alcohol, etc It belongs to this kind of plastic.

以淀粉等天然物質(zhì)為基礎(chǔ)的生物降解塑料目前主要包括以下產(chǎn)品：聚乳酸（PLA）、聚羥基鏈烷酸酯（PHA）、淀粉塑料、生物工程塑料、生物通用塑料（聚烯烴和聚氯乙烯）

At present, biodegradable plastics based on natural substances such as starch mainly include the following products: polylactic acid (PLA), polyhydroxyalkanoate (PHA), starch plastics, bioengineering plastics and biological general plastics (polyolefin and polyvinyl chloride)

生物降解顆粒廠家提醒您，理想的生物降解塑料是性能優(yōu)良的高分子材料，丟棄后可被環(huán)境微生物完全分解，然后無(wú)機(jī)化成為自然界碳循環(huán)的組成部分，所以這類材料如今發(fā)展的越來(lái)越好，更多的內(nèi)容您就關(guān)注網(wǎng)站m.qylxschool.cn查看吧！

Biodegradable particle manufacturers remind you that the ideal biodegradable plastic is a high molecular material with excellent performance. After being discarded, it can be completely decomposed by environmental microorganisms, and then inorganic into a part of the natural carbon cycle. Therefore, this kind of material is developing better and better. For more content, please pay attention to the website m.qylxschool.cn Com check it out!