生物降解顆粒按其生物降解過程大致可分為兩類，下面就讓生物降解顆粒生產(chǎn)廠家來為您講解一番吧。

Biodegradable particles can be roughly divided into two categories according to their biodegradation process. Let the manufacturers of biodegradable particles explain it for you.

一類為完全生物降解材料，如天然高分子纖維素、人工合成的聚己內(nèi)酯等，其分解作用主要來自：①由于微生物的迅速增長導(dǎo)致塑料結(jié)構(gòu)的物理性崩潰；②由于微生物的生化作用、酶催化或酸堿催化下的各種水解；③其他各種因素造成的自由基連鎖式降解。

One type is completely biodegradable materials, such as natural high molecular cellulose and synthetic polycaprolactone, whose decomposition mainly comes from: ① physical collapse of plastic structure due to rapid growth of microorganisms; ② Various hydrolysis due to biochemical action of microorganisms, enzyme catalysis or acid-base catalysis; ③ Free radical chain degradation caused by various other factors.

另一類為生物崩解性材料，如淀粉和聚乙烯的摻混物，其分解作用主要由于添加劑被破壞并削弱了聚合物鏈，使聚合物分子量降解到微生物能夠消化的程度，分解為二氧化碳（CO2）和水。聚乙烯醇為可生物降解樹脂，故淀粉基聚乙烯醇塑料可完全生物降解。

The other type is biodisintegrating materials, such as the mixture of starch and polyethylene. The decomposition effect is mainly due to the destruction of additives and the weakening of polymer chains, so that the molecular weight of polymers is degraded to the extent that microorganisms can digest, and decomposed into carbon dioxide (CO2) and water. Polyvinyl alcohol is a biodegradable resin, so starch based polyvinyl alcohol plastic can be completely biodegradable.

目前生活中我們常見的塑料制品大部分是部分降解的，其中以淀粉基系的塑料制品的降解效果佳，華濰自主研發(fā)的膨潤土改性淀粉復(fù)合材料（BMSC）是以淀粉為基質(zhì)通過熔融插層塑化擠出工藝生產(chǎn)的完全生物降解材料。材料不含聚烯烴塑料，具有高性價(jià)比、天然防靜電性、低碳環(huán)保的特性，并且產(chǎn)物均是可以循環(huán)再利用的。

At present, most of the common plastic products in our life are partially degraded, and the starch based plastic products have the best degradation effect. The bentonite modified starch composite (BMSC) independently developed by Huawei is a fully biodegradable material produced by the melt intercalation plasticization extrusion process with starch as the matrix. The material does not contain polyolefin plastic, has the characteristics of high cost performance, natural antistatic, low-carbon and environmental protection, and the products can be recycled.

甚，降解時(shí)間隨不同環(huán)境變化而變化，例如在干燥環(huán)境下，降解時(shí)間則會(huì)長些，降解時(shí)間也是可控的。

Even, the degradation time varies with different environments. For example, in a dry environment, the degradation time is longer and the degradation time is controllable.

此外，光氧降解塑料在實(shí)際中并不耐用，且在用后既不能被回收再生，也不能被堆肥，反而對兩種處理方式都會(huì)造成干擾——降低再生塑料性能，污染堆肥產(chǎn)物。全球各大研究機(jī)構(gòu)和公益機(jī)構(gòu)目前都在倡議禁止這種塑料的生產(chǎn)，直到有證據(jù)證明其在短時(shí)間內(nèi)可以完全降解。

In addition, the photo oxidative degradable plastics are not durable in practice, and can not be recycled or composted after use. On the contrary, it will interfere with both treatment methods - reduce the performance of recycled plastics and pollute compost products. All major brand research institutions and public welfare institutions around the world are currently proposing to ban the production of this plastic until there is evidence that it can be completely degraded in a short time.

物降解，指材料在特定環(huán)境下，通過微生物作用，完全轉(zhuǎn)化成二氧化碳和水。可以將聚酯短鏈變成二氧化碳的微生物包括細(xì)菌、真菌和原生生物,它們分泌的一種酶可將聚酯鍵分解。

Biodegradation refers to the complete conversion of materials into carbon dioxide and water through microbial action in a specific environment. Microorganisms that can convert polyester short chain into carbon dioxide include bacteria, fungi and protozoans. An enzyme secreted by them can decompose polyester bonds.

生物降解塑料的相關(guān)降解方式內(nèi)容便是這樣了，您可以作為參考使用，當(dāng)然具體使用要結(jié)合實(shí)際，更多關(guān)于生物降解顆粒材料信息就來我們網(wǎng)站http://m.qylxschool.cn咨詢吧。

This is the recommended content of biodegradation methods of biodegradable plastics. You can use it as a reference. Of course, the specific use should be combined with the actual situation. For more information about biodegradable particulate materials, please visit our website http://m.qylxschool.cn Consult.