Disposable corn starch tableware is currently a common biodegradable lunch box in the market. The main source of starch is corn, so it is sometimes referred to as cornstarch based tableware. However, this type of lunch box is actually a mixture of starch and traditional petroleum based polypropylene plastic, referred to as bio based elsewhere.

玉米淀粉餐具是一種可生物降解的餐具，它會導致整個材料的物理性能崩潰。然而，坍塌后的石油基PP仍然是不可生物降解的，根據餐盒的成分，降解率可以達到40%-80%，因此只能視為可降解餐盒，而不是完全降解。

Corn starch tableware is a biodegradable tableware that can cause the physical properties of the entire material to collapse. However, the collapsed petroleum based PP is still non biodegradable, with a degradation rate of 40% -80% depending on the composition of the lunch box. Therefore, it can only be considered as a biodegradable lunch box, rather than completely degraded.

負責生物降解的微生物更有可能化學分解材料，這比石油基塑料更容易降解。然而，由于添加了其他組分，聚合過程會增加結晶度。這些因素將導致PLA降解時間更長。

Microorganisms responsible for biodegradation are more likely to chemically decompose materials, which are easier to degrade than petroleum based plastics. However, due to the addition of other components, the polymerization process increases crystallinity. These factors will result in longer PLA degradation time.

因此，一次性玉米淀粉餐具只能在一些程度上取代塑料制品，是目前市場上有爭議的塑料餐具替代品。

Therefore, disposable corn starch tableware can only partially replace plastic products and is currently a controversial substitute for plastic tableware in the market.

在超過30℃的高溫下，微生物開始降解聚乳酸；潮濕時，濕度越高，水解效率就越高；同時滿足這些條件的環境可以說是自然界中很罕見的。

At high temperatures exceeding 30 ℃, microorganisms begin to degrade polylactic acid; When wet, the higher the humidity, the higher the hydrolysis efficiency; An environment that simultaneously meets these conditions can be said to be very rare in nature.

目前，有許多禁止環境塑料的地方，不再使用降解和完全降解來描述材料，而是使用它們是否可以堆肥。因為堆肥可以限制降解時間、降解后的顆粒大小以及降解成分對植物生長的影響，以保障材料的。

At present, there are many places where environmental plastics are prohibited, and degradation and complete degradation are no longer used to describe materials, but rather to determine whether they can be composted. Because composting can limit the degradation time, particle size after degradation, and the impact of degradation components on plant growth to ensure the safety of materials.

玉米淀粉餐具品質良好，產品密織性好，耐水、耐油、防滲透，同時具有良好的耐高溫和耐低溫性，適合冰箱冷凍、冷藏、保鮮食品，微波爐加熱等。

Corn starch tableware has good quality, good product density, water resistance, oil resistance, and penetration resistance, as well as good high and low temperature resistance. It is suitable for refrigeration, refrigeration, preservation of food, microwave heating, etc.