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一次性可降解餐盒主要成分是什么?

一次性可降解餐盒主要成分是什么?

来源网址:https://www.swjjkl.com/ 2022-05-24 16:29:05    

随着当前全球禁塑限塑的要求,无塑或可降解成为了未来的必然趋势,普通塑料的处理方法依然是焚烧火化,造成大量温室气体排入空气中,而一次性可降解餐盒则是掩埋在土壤里降解,产生的二氧化碳直接进入土壤或被植物吸收,不会排入空气中,不会造成温室效应。

With the current global requirements of plastic prohibition and limitation, non plastic or degradable has become an inevitable trend in the future. The treatment method of ordinary plastics is still incineration and cremation, resulting in a large number of greenhouse gases discharged into the air, while disposable degradable lunch boxes are buried in the soil for degradation, and the generated carbon dioxide directly enters the soil or is absorbed by plants, which will not be discharged into the air and will not cause the greenhouse effect.
今天让我们盘点一下,市面上的一次性可降解餐盒。
Today, let's take stock of disposable degradable lunch boxes on the market.
一、纸浆模塑餐盒(植物纤维模塑餐具)
1、 Pulp molded lunch box (plant fiber molded tableware)
纸浆模塑餐具产品在禁塑的道路上具备一定优越性,首先在原材料上,纸浆模塑一次性餐盒以麦秸秆、甘蔗渣等植物纤维为原材料,不添加任何PP材料,通过纸浆模塑湿压工艺成型,在纸浆中添加防水防油等食品助剂,达到盛放冷热食物的的效果。
Pulp molded tableware products have certain advantages on the road of plastic prohibition. Firstly, in terms of raw materials, pulp molded disposable lunch boxes take wheat straw, bagasse and other plant fibers as raw materials without adding any PP materials. They are formed through pulp molding wet pressing process, and add water-proof and oil-proof food additives in the pulp to achieve the effect of holding cold and hot food.
植物纤维可降解餐盒是目前市场上活跃的餐盒类型,以率先禁塑的海南省为例,海南省以禁止塑料餐具的使用、流通、销售、存放。纸浆模塑餐具无疑成为理想的塑料替代品。
Plant fiber degradable lunch box is an active type of lunch box in the current market. Take Hainan Province, which took the lead in banning plastic tableware, as an example. Hainan Province prohibits the use, circulation, sales and storage of plastic tableware. Pulp molded tableware has undoubtedly become an ideal plastic substitute.
甘蔗浆一次性餐盒属于全降解类型餐盒,可在工业堆肥或者家庭堆肥条件下90天完全降解为有机质,回归自然。
Sugarcane pulp disposable lunch box is a fully degradable lunch box, which can be completely degraded into organic matter and return to nature in 90 days under the condition of industrial composting or household composting.
二、玉米淀粉基餐盒
2、 Corn starch based lunch box
玉米淀粉可降解餐盒是采用天然玉米淀粉及植物纤维为基料,辅之以生物聚酯、多元醇等物质加工而成。
Corn starch degradable lunch box is made of natural corn starch and plant fiber as the base material, supplemented by biological polyester, polyol and other materials.
玉米淀粉餐盒在土壤和自然环境下可以自然降解,降解率根据餐盒成分可达60%-80%,在一定程度上可以替代塑料制品,减少对环境的白色污染。
Corn starch lunch box can be degraded naturally in soil and natural environment. The degradation rate can reach 60% - 80% according to the composition of the lunch box. To a certain extent, it can replace plastic products and reduce white pollution to the environment.
三、PLA可降解餐具
3、 PLA degradable tableware
PLA可降解餐盒通常是指纸浆模塑工艺上PLA复合膜与纸浆模塑产品结合的产品,即PLA覆膜产品。
PLA degradable lunch box usually refers to the combination of PLA composite film and pulp molded products in pulp molding process, that is, PLA coated products.
PLA复合膜是由聚乳酸为原料生产加工而成的一种可以通过加热复合在纸浆模塑及纸制品上的一种完全可降解膜。
PLA composite membrane is a completely degradable membrane produced and processed from polylactic acid, which can be compounded on pulp molding and paper products by heating.
聚乳酸(PLA)是一种新型的生物降解材料,使用可再*的植物资源(如玉米)所提出的淀粉原料制成。淀粉原料经由糖化得到葡萄糖,再由葡萄糖及一定的菌种发酵制成纯度非常高的乳酸,再通过化学合成方法合成一定分子量的聚乳酸。其具有良好的生物可降解性,使用后能被自然界中微生物完全降解,终生成二氧化碳和水,不污染环境,这对保护环境非常有利,是公认的环境友好材料。
Polylactic acid (PLA) is a new biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Glucose is obtained from starch raw material through saccharification, and then lactic acid with very high purity is produced by fermentation of glucose and certain strains, and then polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability. After use, it can be completely degraded by microorganisms in nature, and finally generate carbon dioxide and water. It does not pollute the environment, which is very beneficial to environmental protection. It is recognized as an environment-friendly material.
鉴于PLA的优点,通过覆膜工艺与纸浆模塑产品结合以后,不但可以节省防水防油剂的使用,还可以更好的起到密封纸浆模塑产品气孔的作用,使得原来不可以防酒精的产品可以防止酒精渗漏。同时密闭气孔以后,餐具在实际使用过程中减少了产品的透气性,保温性能更高,保温时间更长。
In view of the advantages of PLA, the combination of film covering process and pulp molding products can not only save the use of waterproof and oil proof agent, but also better seal the pores of pulp molding products, so that the products that can not prevent alcohol can prevent alcohol leakage. At the same time, after sealing the pores, the tableware reduces the air permeability of the product in the actual use process, has higher heat preservation performance and longer heat preservation time.