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一次性玉米澱粉麻豆乱码国产一区二区三区中的聚合物及澱粉基塑料
一次性玉米澱粉麻豆乱码国产一区二区三区所用的玉米澱粉是一種天然的可生物降解聚合物,在微生物的作用下先分解為葡萄糖,然後再分解為水和二氧化碳。聚合物分兩步降解:
The corn starch used in disposable corn starch tableware is a natural biodegradable polymer, which is first decomposed into glucose under the action of microorganisms, and then decomposed into water and carbon dioxide. The polymer is degraded in two steps:
1、在被細菌和其他微生物侵入後,澱粉慢慢失去其原始形態,並在聚合物中形成多孔結構,從而逐漸增加其表麵積。
1. After being invaded by bacteria and other microorganisms, starch gradually loses its original form and forms porous structure in the polymer, thus gradually increasing its surface area.
2、聚合物通過自氧化反應生成過氧化物,將分子鏈斷裂為低分子量片段,並達到可被微生物代謝的階段。
2. The polymer generates peroxide through autoxidation reaction, breaks the molecular chain into low molecular weight segments, and reaches the stage where it can be metabolized by microorganisms.
一次性玉米澱粉麻豆乱码国产一区二区三区中的澱粉基塑料分為三類∶澱粉共混、全澱粉以及可澱粉填充。
Starch based plastics in disposable corn starch tableware can be divided into three categories: starch blending, whole starch and starch filling.
1、澱粉填充塑料:澱粉填充塑料是指填充澱粉的特種塑料(如PE)。以澱粉填充塑料PE為例,其生產工藝是將澱粉幹燥含水率小於1%,然後加入增容劑、氧化劑等
1. Starch filled plastics: starch filled plastics refer to special plastics (such as PE) filled with starch. Take starch filled plastic PE as an example, its production process is to dry the starch until the moisture content is less than 1%, and then add compatibilizer, oxidant, etc
共混澱粉與PE共混,然後按原方法加工成膜。其主要特點是澱粉的添加量相對較低且小於30%,且降解速度較慢,因此不會降解,可能會造成二次汙染,因此應謹慎使用。
Blended starch is blended with PE, and then processed into film according to the original method. Its main feature is that the addition amount of starch is relatively low and less than 30%, and the degradation speed is slow, so it will not be degraded, which may cause secondary pollution, so it should be used with caution.


2、澱粉共混塑料:澱粉共混塑料主要由樹脂和凝膠澱粉組成。有三種方法可以提高澱粉和樹脂之間的相容性:
2. Starch blend plastic: starch blend plastic is mainly composed of resin and gel starch. There are three ways to improve the compatibility between starch and resin:
(1)澱粉改性,如澱粉接枝改性、表麵偶聯處理等。
(1) Starch modification, such as starch grafting modification, surface coupling treatment, etc.
(2)聚乙烯改性,如馬來酸酐接枝;
(2) Polyethylene modification, such as maleic anhydride grafting;
(3)添加增容劑,如EVA、澱粉接枝PMMA、澱粉接枝PS、澱粉接枝MAH、澱粉接枝SBS等。
(3) Add compatibilizers, such as EVA, starch grafted PMMA, starch grafted PS, starch grafted MAH, starch grafted SBS, etc.
(3)全澱粉塑料:全澱粉塑料是指在一定量的增塑劑作用下,澱粉現有分子結構被破壞而形成的物質。這種澱粉塑料經分解後,可作為農業有機肥使用,對環境無不良影響。
(3) All starch plastic: All starch plastic refers to the material formed by destroying the existing molecular structure of starch under the action of a certain amount of plasticizer. After decomposition, the starch plastic can be used as agricultural organic fertilizer without adverse effects on the environment.
就環境汙染程度而言,一次性玉米澱粉麻豆乱码国产一区二区三区是一種很有前途的產品,可降解澱粉基材料製成的麻豆乱码国产一区二区三区有著機械強度強、柔韌性好、耐衝擊、耐溫、耐油、不軟化、不變形、可塑性好等特點。您有需求可以隨時來国产麻豆学生视频網站http://www.gdbaixun.com進行谘詢!
In terms of environmental pollution, disposable corn starch tableware is a promising product. Tableware made of degradable starch based materials has the characteristics of strong mechanical strength, good flexibility, impact resistance, temperature resistance, oil resistance, non softening, non deformation, good plasticity, etc. You can come to our website anytime you need http://www.gdbaixun.com Consult!
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