一次性玉米澱粉餐具在使用上是否能達（dá）成（chéng）降解？

一（yī）次性玉米澱粉餐具是目前市場上常見的可降解餐盒。澱（diàn）粉的主要來源是玉（yù）米，因此有時也被稱為玉米（mǐ）澱粉基餐具。然而（ér），這種（zhǒng）餐盒實際上是澱粉和傳統石油基聚（jù）丙烯的混合塑料，在（zài）其它地方（fāng）被稱為生物（wù）基。

Disposable corn starch tableware is currently a common biodegradable food 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.

玉米澱粉餐具是一種可生物降解（jiě）的餐具，它會導致整個材料（liào）的物理性能崩潰。然而，坍塌後的石（shí）油基PP仍然（rán）是不可生物降解的（de），根（gēn）據餐盒的成分，降解率可以達到40%-80%，因（yīn）此隻能（néng）視為可降解餐盒，而不是完（wán）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, and the degradation rate can reach 40% -80% based on the composition of the lunch box. Therefore, it can only be considered as a biodegradable lunch box, not completely degraded.

負責（zé）生物降解的微（wēi）生物更有可能化學分解材料（liào），這比石油基塑料更容易降解。然而，由於添加了其他組分，聚合（hé）過程會增加（jiā）結晶度（dù）。這些因（yīn）素將導致PLA降（jiàng）解時間更長（zhǎng）。

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

因此（cǐ），一次性玉米澱（diàn）粉餐具隻能在一些（xiē）程度上取代塑料製（zhì）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（zài）超（chāo）過30℃的高溫下，微生（shēng）物開始降解聚（jù）乳酸；潮濕時（shí），濕度越高，水解效率就（jiù）越高；同時滿足這些條件的環境可以說是自然界中很（hěn）罕見的。

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

目前，有許多禁止環境塑料的地方，不再使用降解和（hé）完（wán）全降解來（lái）描述材料，而是使用它們是（shì）否可以堆肥。因為堆肥可以（yǐ）限製降解時間、降解後的顆粒大小（xiǎo）以及降解成分對植物生長的（de）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.

玉米澱粉餐具品質良好，產品密織（zhī）性好，耐水、耐油、防滲透，同時（shí）具有良好的耐高溫和耐低溫性，適合冰箱冷（lěng）凍、冷（lěng）藏、保鮮食品，微波爐（lú）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 refrigerator freezing, refrigeration, preservation of food, microwave heating, etc.

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