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Corn starch based tableware is a common biodegradable food box in the current market. The main source of starch is corn, so it is sometimes called corn starch based. However, this type of food box is actually a mixture of starch and traditional petroleum based PP plastic, which is called bio based abroad.

玉米淀粉基餐具是通过淀粉的生物降解而致使整个材料物理性能崩溃，但崩溃后的石油基PP还是不可降解的，降解率根据餐盒成分可达40%-80%，所以只能算是可降解餐盒，而不能算是全降解。

Corn starch based tableware causes the physical properties of the entire material to collapse through the biodegradation of starch, but the petroleum based PP after collapse is still non degradable. The degradation rate can reach 40% -80% based on the composition of the lunch box, so it can only be considered a degradable lunch box, not a fully degradable one.

因此玉米淀粉基餐具只能在一定程度上替代塑料制品，是目前市场上饱受争议的塑料餐具的替代品。

Therefore, corn starch based tableware can only partially replace plastic products and is currently a controversial alternative to plastic tableware in the market.

负责生物降解的微生物就越容易对材料进行化学分解），比石油基的塑料要容易降解很多。但是由于添加了其它成分，同时聚合的过程会提高结晶度。这些因素都会PLA降解的时间变长。

The microorganism responsible for biodegradation is more likely to chemical decomposition the material), which is much easier to degrade than petroleum based plastics. However, due to the addition of other components, the polymerization process will increase crystallinity. These factors will lead to longer degradation time of PLA.

高温，超过30℃时，微生物才会开始降解PLA；

At high temperatures exceeding 30 ℃, microorganisms begin to degrade PLA;

潮湿，湿度越高水解效率越高。

Wet, the higher the humidity, the higher the hydrolysis efficiency.

要同时满足这几个条件的环境，在自然界中可以说非常稀少。

The environment that satisfies these conditions simultaneously can be said to be very rare in nature.

目前，世界上环保禁塑的很多先行国家例如欧洲已经不用降解和完全降解来描述材质，而是用是否可堆肥来说明。因为可堆肥对降解的时间，降解后的颗粒大小，降解后成分对植物生长的影响都能进行限定，来保证材质的安全性。

At present, many leading countries in the world that prohibit environmental plastics, such as Europe, no longer use degradation and complete degradation to describe materials, but rather use whether they can be composted. Because composting can limit the degradation time, particle size after degradation, and the impact of degraded components on plant growth to ensure the safety of the material.

因此像纸浆模塑餐具植物纤维模塑餐具（甘蔗浆餐具）这类，能在家庭堆肥条件下就完全降解的真正意义上的环保餐具，现在市场上呈现出大热发展趋

Therefore, truly environmentally friendly tableware, such as pulp molded tableware and plant fiber molded tableware (sugarcane pulp tableware), which can be completely degraded under household composting conditions, is currently showing a hot development trend in the market