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常见的可降解材料主要有PLA和PBAT

常见的可降解材料主要有PLA和PBAT

来源网址:https://www.swjjkl.com/ 2023-03-17 11:58:55    

可降解材料主要是在塑料的基础上,添加光敏剂、改性淀粉、生物降解剂等原料,通过这些原料降低传统塑料的稳定性,加快其在自然环境中的降解速度以减少对自然环境的污染。常见的可降解材料主要有PLA和PBAT。下面可降解颗粒生产厂家为您分析:
Degradable materials are mainly based on plastics, adding photosensitizers, modified starch, biodegradable agents, and other raw materials to reduce the stability of traditional plastics and accelerate their degradation in the natural environment to reduce pollution to the natural environment. Common degradable materials include PLA and PBAT. The following manufacturers of degradable particles will analyze for you:
PLA聚乳酸是目前广泛,也是投入研究应用多的可降解材料,又称聚丙交酯,由淀粉原料制成。大致原理为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高纯度的乳酸,再通过化学合成方法合成一定分子量的聚乳酸。
PLA polylactic acid (PLA) is a widely used and widely researched biodegradable material, also known as polylactide, made from starch raw materials. The general principle is that starch raw materials are saccharified to obtain glucose, which is then fermented by glucose and certain strains to produce high-purity lactic acid, and then polylactic acid with a certain molecular weight is synthesized through chemical synthesis methods.
PBAT同样为比较广泛,投入研究和使用的降解材料,称为聚己二酸或对苯二甲酸丁二酯,是己二酸丁二醇酯和对苯二甲酸丁二醇酯的共聚物,兼具PBA和PBT的特性,既有较好的延展性和断裂伸长率,也有较好的耐热性和冲击性能。此外,还具有优良的生物降解性。
PBAT is also a widely researched and used degradation material, known as polyadipic acid or butylene terephthalate. It is a copolymer of butylene adipate and butylene terephthalate. It combines the characteristics of PBA and PBT, with good ductility and elongation at break, as well as good heat resistance and impact properties. In addition, it also has excellent biodegradability.
目前我国使用较为广泛的绿色环保包装材料主要分为:纸制品材料、天然生物材料、可降解材料、可食性材料。
Currently, the widely used green packaging materials in China are mainly divided into: paper product materials, natural biological materials, biodegradable materials, and edible materials.
可降解颗粒
使用较为成熟的主要是传统类可降解材料,如淀粉基,聚乳酸,PVA薄膜等;其他新型可降解材料,如纤维素,壳聚糖,蛋白质等可降解材料也具有非常大的发展潜力。与一次性传统包装相比,可循环可降解使用的包装可以减少80%的温室气体排放。
The main mature materials used are traditional degradable materials, such as starch based, polylactic acid, PVA film, etc; Other novel degradable materials, such as cellulose, chitosan, protein, and other degradable materials, also have great development potential. Compared to disposable traditional packaging, recyclable and degradable packaging can reduce greenhouse gas emissions by 80%.
快餐食品中的可降解,这种材料既具有传统塑料的功能和特性,又可在完成使命后,通过土壤和水的微生物作用,或通过阳光中紫外线的作用,在自然环境中分裂降解和还原,终以无毒形式重新进入生态环境中,回归大自然。
Degradable in fast food, this material not only has the functions and characteristics of traditional plastics, but also can be split, degraded, and reduced in the natural environment through the microbial action of soil and water, or through the action of ultraviolet rays in the sun after completing the mission, eventually re-entering the ecological environment in a non-toxic form and returning to nature.
例:餐饮行业中你可能会经常见到可降解包装,可降解餐盒、甘蔗浆餐盘、全降解纸杯等。
For example, in the catering industry, you may often see degradable packaging, degradable lunch boxes, sugarcane pulp dinner plates, fully degradable paper cups, etc.
PLA广泛用于包装、纺织行业、农用地膜和生物医用高分子等行业;PBS可以用包装薄膜、餐具、发泡包材、日用品瓶、药品瓶、农用薄膜、农药及化肥缓释材料等领域;PBAT由于它的成膜性能良好,易于吹膜,广泛用于一次性包装膜及农膜领域;PHAs类可降解塑料热变形温度高、具有良好的生物相容性,可用于一次性用品、医疗器械手术服、包装袋和堆肥袋、医用缝线、修复装置、绷带、骨科针、防黏连膜及支架等领域。
PLA is widely used in packaging, textile industry, agricultural film and biomedical polymer industries; PBS can be used in fields such as packaging films, tableware, foaming packaging materials, daily necessities bottles, pharmaceutical bottles, agricultural films, pesticides, and fertilizer slow release materials; PBAT is widely used in the field of disposable packaging films and agricultural films due to its good film forming performance and ease of blowing; PHAs biodegradable plastics have high thermal deformation temperatures and good biocompatibility, and can be used in fields such as disposable products, medical instruments, surgical clothing, packaging bags and compost bags, medical sutures, repair devices, bandages, orthopedic needles, anti adhesion films, and stents.
可降解材料在性能、实用性、降解性、安全性上都有其优势,如:
Degradable materials have advantages in performance, practicality, degradability, and safety, such as:
在性能上,可降解塑料可以达到或在某些特定领域超过传统塑料的性能;
In terms of performance, degradable plastics can achieve or exceed the performance of traditional plastics in certain specific fields;
在实用性上,可降解塑料有与同类传统塑料相近的应用性能和卫生性能;
In terms of practicality, degradable plastics have similar application and sanitary properties to similar traditional plastics;
在降解性上,可降解塑料在使用后,可以在自然环境下(特定微生物、温度、湿度)较快完成降解,并成为易被环境利用的碎片或无毒气体,减少对环境的影响;
In terms of degradability, degradable plastics can quickly degrade in natural environments (specific microorganisms, temperature, and humidity) after use, and become easily recyclable debris or non-toxic gases, reducing the impact on the environment;
在安全性上,可降解塑料降解过程产生或残留的物质对环境无害,不会影响人类和其他生物的生存。您有什么需求或者想法可以随时来咨询我们https://www.swjjkl.com
In terms of safety, substances generated or remaining during the degradation of degradable plastics are harmless to the environment and will not affect the survival of humans and other organisms. If you have any needs or ideas, please feel free to consult us https://www.swjjkl.com !