什么是生物材料?

发布时间:2017-10-24 12:00:00

生物材料是生物基塑料和生物降解塑料的统称。

( a)生物基塑料:即来源于可再生资源的塑料,与传统塑料不同,生物基聚合物来源于可再生资源,例如:糖、淀粉、植物油、纤维素等。其中,玉米、甘蔗、谷物、木材是使用最普遍的原料。

(b)生物降解塑料:在自然界和土壤、沙士等条件下,或堆肥条件下、厌氧消化条件下、水性培植液中等,由自然界存在的微生物作用引起降解,并最终完成降解变成二氧化碳、水及其所含元素的矿化无机盐以及新的生物质的塑料。

Bioplastics is a general term for biobased plastic and biodegradable plastic.

(a) Biobased plastic: Unlike traditional plastic, biobased plastic is derived from renewable resources, such as sugar, starch,vegetable oil, cellulose, etc. Among them, cor, sugarcane, grain and wood are the most common raw materials.

(b) Biodegradable plastic: Either under the conditions of nature, soil, sand, etc or the conditions of compost, anaerobic digestion, water-based culture medium, etc, microorganism from nature functions and causes the biodegradation. When the biodegradation is finished finally, it tums into carbon dioxide, water, elements-contained mineralized inoganic salt and new biobased plastics.


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