生物降解與玉（yù）米澱粉基降解一次性餐盒的原理比較！

生物（wù）降解與玉米澱粉基降解一次性（xìng）餐盒的原理比較！

網址：http://www.shuiniguan.com 手機頁麵二維碼 2021-05-19 18:03:25    

可生物降解的一次性餐盒原理：許多合成的純（chún）聚合物均有抗微生物侵蝕能力。但添加劑（jì）(如增塑劑、潤滑劑、色（sè）素（sù）和耐氧（yǎng）劑等)則減低這種能力。增塑劑殘餘脂肪酸（suān）如硬脂酸酯（zhǐ）可被微（wēi）生物降解並致使聚合物表（biǎo）麵與性（xìng）能乃（nǎi）基（jī）礎結構的破壞（huài）。已（yǐ）知微生物對於自然（rán）聚（jù）合物（wù）降解作用（yòng）是生（shēng）物合成產出的酶蛋白質來完成的。這些酶蛋白可著落於細（xì）胞壁（bì）上，或存在於細胞原生（shēng）質結（jié）構中。一些酶能潛入到周圍環境（jìng）中，有些酶則在細胞內，隻有在細（xì）胞被溶解或是機械破碎之時才釋放出來。酶（méi）對化（huà）學反應，隻有較高（gāo）的催化能力在適宜的生理條件（jiàn）下速（sù）度進行。

Principle of biodegradable disposable lunch box: many synthetic pure polymers have anti microbial erosion ability. However, additives (such as plasticizers, lubricants, pigments and antioxidants) reduce this ability. Plasticizer residual fatty acids such as stearate can be degraded by microorganisms, resulting in the destruction of polymer surface, properties and even infrastructure. It is known that microbial degradation of natural polymers is accomplished by biosesynthesis of enzymes and proteins. These enzyme proteins can be located on the cell wall or in the protoplast structure. Some enzymes can sneak into the surrounding environment, while others are in the cell and are released only when the cell is dissolved or broken mechanically. The enzyme only has high catalytic ability to chemical reaction, and can proceed at a high speed under suitable physiological conditions.
澱粉基降解一次性餐盒的原理：
Principle of starch based degradable disposable lunch box:
物理改性：理改性是（shì）指通過澱粉細微化（huà）、擠壓機破壞澱粉結構或添加偶聯劑和增塑劑等添（tiān）加（jiā）劑以增加澱粉與通用餐盒的相容性（xìng）。
Physical modification: physical modification refers to increasing the compatibility of starch with general food box by starch refinement, destroying starch structure by extruder or adding additives such as coupling agent and plasticizer.
                          一次性玉（yù）米澱粉餐具
化學改性：化學改性通常是向澱粉分子（zǐ）引入（rù）疏水基（jī）團，使它在澱粉與合成樹脂間起到了加強相容性的功能，改性的方法有羥烷基化、酯化或接枝共聚、醚化和交聯改性等。
Chemical modification: chemical modification is usually to introduce hydrophobic groups into starch molecules to enhance the compatibility between starch and synthetic resin. The modification methods include hydroxyl alkylation, esterification or graft copolymerization, etherification and cross-linking modification.
玉米澱粉共混餐盒（hé）：共聚型（xíng）光解（jiě）一次餐盒主要利用共聚反應於高分子主鏈引入了羧基型感光基而賦予了其光降解的特（tè）性，並通（tōng）過調節羧基型感光基團（tuán）含量（liàng）可控製光降（jiàng）解（jiě）活性。
Corn starch blending lunch box: the copolymerization type photodegradation lunch box mainly uses the copolymerization reaction to introduce carboxyl photosensitive group into the main chain of polymer, which gives it the characteristics of photodegradation, and the photodegradation activity can be controlled by adjusting the content of carboxyl photosensitive group.
全玉米澱粉一次（cì）性餐盒全澱粉（fěn）型澱（diàn）粉指以澱粉為主料(占90%左右)，未添加任了石油化（huà）工（gōng）原（yuán）料（liào）一類產品，這裏澱粉（fěn）包括天（tiān）然澱粉與改性澱粉，天然澱粉由於分子之間存有氫鍵，溶解性很差，融水但並不易溶於水，且直接加熱時沒有熔融過程，300℃以上分（fèn）解。
All corn starch disposable lunch box all starch starch refers to a kind of products with starch as the main material (accounting for about 90%) and without any petrochemical raw materials. Here, starch includes natural starch and modified starch. Due to hydrogen bonds between molecules, natural starch has poor solubility, but it is not easy to dissolve in water, and there is no melting process when heated directly, and it decomposes above 300 ℃.
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