正式生产的生物降解颗粒塑料袋须按照上述数字和所使用的材料进行标注。生物降解塑料袋不可降解材料废弃后易形成“白色污染”，这些难降解材料的处理带来了巨大的技术问题同时也促进了可生物降解材料的发展。

The officially produced biodegradable granular plastic bags must be marked according to the above figures and the materials used. The non-degradable materials of biodegradable plastic bags are easy to form "white pollution" after being discarded. The treatment of these non-degradable materials has brought huge technical problems and also promoted the development of biodegradable materials.

生物降解颗粒抗水性能的影响规律，得出制备SPI可生物降解材料的佳改性工艺条件为：SPI与四氢呋喃的质量体积比为1:3，并采用正交组合试验设计优化了SPI可生物降解材料的改性条件；在佳条件下所制得的SPI可生物降解材料的拉伸强度为8.61MPa，断裂伸长率为196.78%，吸水率为31.6%。

According to the law of influence on the water resistance of biodegradable particles, the best modification conditions for preparing SPI biodegradable materials are obtained as follows: the mass volume ratio of SPI to tetrahydrofuran is 1:3, and the modification conditions of SPI biodegradable materials are optimized by orthogonal combination test design; The tensile strength, elongation at break and water absorption of SPI biodegradable material prepared under optimum conditions are 8.61 MPa, 196.78% and 31.6% respectively.

生物降解原料在适当和可表明期限的自然环境条件下，能够被微生物完全分解变成低分子化合物的材料。生物降解陶瓷和生物降解性塑料两类。其中，圆形标志表明生物降解颗粒塑料袋可回收再设计，循环标志内的04是低密度聚乙烯（LDPE）的专用回收数字识别，周期标记下方的pe-LD表示生物降解颗粒塑料袋生产的原料，而生物降解颗粒塑料袋右侧的GB/T21661-2008是生物降解颗粒塑料袋的生产标准。

Biodegradable raw materials can be completely decomposed by microorganisms into materials with low molecular weight compounds under natural environmental conditions that are appropriate and can indicate the duration. Biodegradable ceramics and biodegradable plastics. Among them, the circular mark indicates that the biodegradable particle plastic bag can be recycled and redesigned, the 04 in the circular mark is the special recycling digital identification of low density polyethylene (LDPE), the pe-LD below the cycle mark indicates the raw material for the production of biodegradable particle plastic bags, and the GB/T21661-2008 on the right side of the biodegradable particle plastic bag is the production standard of biodegradable particle plastic bags.

可降解生物降解塑料袋

Biodegradable plastic bag

由于紫外线辐射、氧化腐蚀和生物腐蚀，生物降解颗粒塑料袋中的聚合物被部分或完全损坏。这意味着性能的变化，如褪色、表面开裂和碎裂。

Due to ultraviolet radiation, oxidation corrosion and biological corrosion, the polymer in biodegradable plastic bags is partially or completely damaged. This means changes in performance, such as fading, surface cracking and fragmentation.

可生物技术降解生物进行降解塑料袋

Biodegradable plastic bag

生物可分解塑胶袋中的有机物质被微生物(细菌和真菌)完全或部分转化为水、二氧化碳/甲烷、能量和新的生物量的生化过程。

A biochemical process in which organic substances in biodegradable plastic bags are completely or partially converted into water, carbon dioxide/methane, energy and new biomass by microorganisms (bacteria and fungi).

可堆肥生物降解塑料袋

Compostable biodegradable plastic bag

生物降解颗粒塑料袋在高温土壤中可在特殊条件和时间尺度下进行生物降解，通常需要在工业堆肥中使用，以达到更好的降解效率。从以上三点来看，如果可生物降解的塑料袋是可生物降解或可堆肥的，终会因生物降解转化为水和二氧化碳，从环境中消失，从而达到真正的环保效果！

Biodegradable granular plastic bags can be biodegradable under special conditions and time scales in high-temperature soil, and usually need to be used in industrial compost to achieve better degradation efficiency. From the above three points of view, if biodegradable plastic bags are biodegradable or compostable, they will eventually be converted into water and carbon dioxide due to biodegradation and disappear from the environment, thus achieving real environmental protection effect!

购买可生物降解或可堆肥的生物可分解塑胶袋，先需要了解国家有没有关于标志下的生物可分解塑胶袋的法规，然后，根据环保标签下的生物可分解塑胶袋的原材料，常见的可生物降解或可堆肥的生物可分解塑胶袋是pla和pbat。生物可分解塑胶袋只有在终变成水和二氧化碳的情况下才是真正的环境友善。

To purchase biodegradable or compostable biodegradable plastic bags, you need to know whether there are national laws and regulations on biodegradable plastic bags under the label. Then, according to the raw materials of biodegradable plastic bags under the environmental protection label, the common biodegradable or compostable biodegradable plastic bags are pla and pbat. Biodegradable plastic bags are truly environmentally friendly only when they eventually become water and carbon dioxide.

目前市面上的生物降解塑料袋，如果客户没有特殊要求的话，基本都是不可降解的，因为降解剂成本比较高，工业用袋流通时间太长。如果对降解时间的要求太短，产品在到达消费者之前就会变成废物。更多相关内容就来咨询联系我们https://www.swjjkl.com吧！

At present, biodegradable plastic bags on the market are basically non-degradable if customers have no special requirements, because the cost of degradants is relatively high and the circulation time of industrial bags is too long. If the requirements for degradation time are too short, the product will become waste before reaching consumers. Contact us for more information https://www.swjjkl.com Come on!