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生物降解颗粒在不同领域的作用介绍

生物降解颗粒在不同领域的作用介绍

来源网址:https://www.swjjkl.com/ 2021-03-29 14:51:47    

生物降解颗粒在医学领域作用:医用材料不仅要求有医效,而且还要安全、五毒、无刺激性,与人体有良好的生物相容性。医用生物降解颗粒是指完成功能后,可被生物体内的溶解酶分解而吸收,生物降解塑料已经被广泛用于手术缝合线,人造皮肤,矫形外科,体内药物缓释剂和吸收性缝合线等领域。

The role of biodegradable particles in the field of Medicine: medical materials not only require medical effect, but also safety, five poisons, no irritation, and good biocompatibility with human body. Medical biodegradable particles can be decomposed and absorbed by dissolving enzymes in the organism after completing functions. Biodegradable plastics have been widely used in surgical suture, artificial skin, orthopedics, in vivo drug release agent and absorbable suture.
生物降解颗粒的降解原理,生物降解塑料添加剂包含一种天然纤维质添加成分,该成分呈细小的颗粒形状;既具有可生物降解特性又具有较高的透明度,从而对终端产品的物理性能影响甚微。
Biodegradation principle of biodegradable particles, biodegradable plastic additives contain a kind of natural fibrous additive, which is in the shape of small particles; it has biodegradability and high transparency, so it has little impact on the physical properties of the end product.
该生物降解添加剂系列,是以聚烯烃为载体,配以一种天然植物纤维素的复合物。另外,该复合物中还包含一种金属离子预降解成分,以便为聚合物引发光降解的特性。所有的添加成分对环境都无害。
This series of biodegradable additives is a complex of polyolefin as carrier and natural plant cellulose. In addition, the composite also contains a metal ion pre degradation component, so as to induce the luminescent degradation characteristics of the polymer. All the additives are environmentally friendly.
含有生物降解添加剂的塑料薄膜具有生物降解的特性。当其被人们使用并抛弃之后,例如在垃圾堆里,只要有微生物、温热、潮湿并有氧气,塑料制品就会破裂并被分解。生物降解率很大程度上取决于堆场里的自然条件,比较理想的环境是微生物活跃、温热并且不太干燥。
The plastic film containing biodegradable additives has the characteristics of biodegradation. When it is used and discarded by people, such as in garbage dumps, as long as there are microorganisms, warm, humid and oxygen, plastic products will crack and be decomposed. The biodegradation rate largely depends on the natural conditions in the yard. The ideal environment is that the microorganism is active, warm and not too dry.
一般在3到7个月内,塑料膜就开始出现裂纹并变脆,其后,在第4-12个月内就开始破裂并被细菌侵蚀消化。比较初的光降解和快速分解是通过添加剂中的金属离子预降解成分促成的。而添加剂中的植物纤维素主要为土壤里的微生物的滋长提供营养,从而使各种菌类在膜的里里外外迅速生长。大大小小的破裂导致膜变得粉碎,并比较终被生物分解成二氧化碳和水。
Generally, the plastic film begins to crack and become brittle within 3 to 7 months, and then begins to crack and be digested by bacteria within 4 to 12 months. The initial photodegradation and rapid decomposition are facilitated by the metal ions in the additives. The plant cellulose in the additive mainly provides nutrition for the growth of microorganisms in the soil, so that all kinds of fungi grow rapidly inside and outside the membrane. Large and small ruptures cause the membrane to shatter and be biodegraded into carbon dioxide and water.