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生物降解塑料颗粒各项种类介绍

生物降解塑料颗粒各项种类介绍

来源网址:https://www.swjjkl.com/ 2021-05-28 16:09:21    

脂肪族聚脂类生物崩坏塑料是通用塑料很纤细的纤维状均匀的分散到具有生物降解性的聚脂而能使共聚物具有生物降解性。将脂肪族通用塑料如PE、PP、PS、PVC等共混,控制其相结构和分散状态,生物降解塑料颗粒,制得物理性能良好的生物降解塑料;而矿物质生物崩坏塑料与碳酸钙填充改性聚烯烃塑料相似,为了适应环境的需要,研究开发了高填充碳酸钙母料以及*料,以此制成薄膜、片材、盒等包装材料

Aliphatic polyester biodegradable plastics are general-purpose plastics, which can make copolymers biodegradable by dispersing very fine fibers into biodegradable polyester. Biodegradable plastics with good physical properties were prepared by blending general aliphatic plastics such as PE, PP, PS and PVC, controlling their phase structure and dispersion state and biodegradable plastics particles; In order to adapt to the needs of the environment, we have researched and developed high filling calcium carbonate masterbatch and * material to make film, sheet, box and other packaging materials
光降解型塑料
Photodegradable plastics
是指在紫外线的影响下聚合物链有次序地进行分解的材料。大多数聚合物并不吸收285NM以上波长的光能,但是,如果在聚合物中加入光敏感基团或添加具有光敏感作用的化学助剂,可加速光氧化反映的过程,使之快速发生降解。根据光降解聚合物分子设计原理及制造方法,可分为合成型光降解塑料和添加型光降解塑料。
It refers to the material that the polymer chain decomposes orderly under the influence of ultraviolet light. Most polymers do not absorb the light energy of 285nm or above. However, the photo oxidation reaction process can be accelerated and the degradation can occur quickly if the photo sensitive group or the photo sensitive chemical assistant is added to the polymer. According to the molecular design principle and manufacturing method of photodegradable polymer, it can be divided into synthetic photodegradable plastics and additive photodegradable plastics.
纤维素基生物降解塑料**高分子纤维素与淀粉一样,非热塑性材料,不能用常规加工方法加工。采用共混或化学改性方法破坏纤维素的氢键,使纤维素分子上的羟基发生反应,得到纤维素的衍生物,再与未经改性的纤维素或原淀粉等共混,制得性能各异的降解塑料,可降解塑料颗粒,加工成力学性能好、生产成本低、降解速度快的各种制品或膜材。
Cellulose based biodegradable plastics * * polymer cellulose, like starch, is a non thermoplastic material and cannot be processed by conventional processing methods. By means of blending or chemical modification, the hydrogen bond of cellulose is broken, and the hydroxyl groups on cellulose molecules are reacted to obtain cellulose derivatives, which are then blended with unmodified cellulose or raw starch to prepare degradable plastics and degradable plastic particles with different properties, and then processed into various products or films with good mechanical properties, low production cost and fast degradation speed.
有人研究发现采用30%~85%可降解纤维素衍生物与30%~70%未改性纤维素或原淀粉共混制成的降解塑料,可用注塑和流延等成型手段,制成各种制品或膜材,其性能、降解速度、生产成本均有在包装领域中推广应用的潜力,可用于食品、日用品的包装。
It has been found that the degradable plastics made by blending 30% ~ 85% degradable cellulose derivatives with 30% ~ 70% unmodified cellulose or raw starch can be made into various products or film materials by injection molding and tape casting. Its performance, degradation rate and production cost have the potential to be popularized and applied in the packaging field, and can be used in the packaging of food and daily necessities.