Lactic acid is an important biochemical product and it can be used for production of many other derivatives such as polylactic acid and lactate.
乳酸是一种重要的有机酸及生物化工品，以乳酸为原料可以得到多种衍生物，如聚乳酸、乳酸盐以及乳酸酯等。
The method has the advantages of effectively promoting the wide application of environment-friendly polylactic acid products, along with simple process and low cost.
本发明工艺方法简单，成本低廉，可有效促进环保型聚乳酸制品的广泛应用。
The product is made from polylactic acid modification wollastonite composite material.
该制品是以聚乳酸改性硅 灰石复合材料为原料制成的制品。
Objective: To study the release of ciprofloxacin polylactic acid microspheres in vitro.
目的：考察环丙沙星聚乳酸微球的体外释药性能。
The synthetic methods of polylactic acid are reviewed, its status and application are introduced.
综述了聚乳酸的合成方法，介绍了其生产应用现状。
Methods : PGA non woven mesh was put into the mold of trachea cartilage ring and enforced with polylactic acid.
方法：按气管软骨环的形状制备模具，将聚乙醇酸无纺网置于模具中，用聚乳酸塑形；
OBJECTIVE To study the preparation process, assay and in vitro drug release of adriamycin polylactic acid microspheres.
目的：对阿霉素聚乳酸微球的制备工艺、含量测定及体外释药特性进行初步研究。
The invention relates to a method for preparing a nanofiber bracket material using levorotatory polylactic acid as matrix.
本发明涉及以左旋聚乳酸为基质的纳米纤维支架材料的制备方法。
Objective To study the best preparation of fennel oil polylactic acid microencapsulation by emulsifying solvent-evaporation process.
目的：探讨乳化溶剂挥发法制备茴香油聚乳酸微胶囊粒子的最佳工艺。
Conclusion: The fluorouracil release from microspheres with polylactic acid as carriers was controlled by drug diffusion and polymeric erosion.
结论：氟尿嘧啶微球体外释药以药物扩散和材料降解为主。
The molecular weight of the diethylenetriamine pentaacetic acid-polyethyleneglycol-polylactic acid polymer nanoparticle is from 10000 to 50000.
二乙三胺五乙酸-聚乙二醇-聚乳酸共聚物纳米粒分子量为10000-50000。
Objective:To study the influence of peripheral nerve regeneration through polylactic acid conduit with bletilla colloid(BC)and schwann cells(SCs).
目的：研究聚乳酸管注入白芨胶和雪旺细胞对周围神经再生的影响。
The influence of polylactic-acid and silicone tubes on the anastomotic stoma of ampulated nerves is studied with SD rat sciatic nerves in the paper.
用SD大鼠坐骨神经研究聚乳酸管和硅胶管对神经离断伤吻合口的影响。
The composite material is composed of knitted or unknitted natural fiber which is modified at the surface, polylactic acid and silane coupling agent.
该复合材料由经过表面改性的编织或未编织的天然纤维、聚乳酸和硅烷偶联剂组成。
In this paper, the polylactic acid is synthesized by two-step method from lactic acid to lactide, then open-ring polymerize to PLA (polylactic acid).
采用二步法由乳酸制备丙交酯，由丙交酯的开环聚合制备高分子量的聚乳酸。
To prepare microsphere containing Azithromycin(AZM) with polylactic acid, and investigate the characteristics of AZM microsphere (AZMMS)in vitro release.
以聚乳酸为载体材料制备阿奇霉素微球（AZMMS）并考察其体外释药特性。
The invention also discloses a preparation method of the polylactic acid combination containing the sulfonic acid compound and the nitrogenous organic compound.
本发明还公开了一种含有磺酸化合物和含氮有机化合物的聚乳酸组合物的制备方法。
The invention belongs to the technical field of polymer materials, and particular relates to a method for injection molding of high crystalline polylactic acid.
本发明属于高分子材料技术领域，具体涉及一种高结晶聚乳酸的注塑方法。
The invention provides a biodegradable material composition, which contains polylactic acid, organic phyllosilicate and natural fiber containing coupling agent.
本发明提供了一种可生物降解材料组合物，该组合物含有聚乳酸、有机层状硅酸盐和含有偶联剂的天然纤维。
OBJECTIVE To optimize the preparation method of the oridonin-loaded polylactic-acid nanoparticles, and investigate its properties and release behavior in vitro.
目的优化冬凌草甲素聚乳酸纳米粒的制备工艺，并对其理化性质和体外释药特性进行考察。
The article analyzes the status of polylactic acid productive technology, market and application and puts forward future development prospect of polylactic acid.
前言：分析了聚乳酸生产技术、市场和应用的现状，提出了聚乳酸未来发展前景。
Aim To discover the effect of molecular weight of polylactic acid on the shape, drug content and drug distribution state of rifampicin polylactic acid microspheres.
目的考察聚乳酸相对分子量对利福平聚乳酸微球形态、载药量及微球中药物分布状态的影响。
The invention relates to a polylactic acid membrane of surface-modified with microcapsule carrying hamocura and a preparation method thereof, belonging to the field of biomaterial.
本发明涉及一种利用载肝素微胶囊表面修饰的聚乳酸膜及制备方法，属于生物材料领域。
Objective To evaluate the role of polylactic acid(PLA) in the formation of artificial dermis as the scaffold material and its significance in tissue engineering for artificial skin.
目的利用多孔聚乳酸海绵材料作为真皮支架材料，研究其在组织工程真皮构建中的作用及意义。
The invention discloses a polylactic acid degrading enzyme with protein degrading activity prepared by fermentation and purification of strains of amycolatum sp. and amycolatopsis sp.
本发明公开了一类具有蛋白质降解活性的聚乳酸降解酶，由无枝酸菌属和拟无枝酸菌属的菌种发酵纯化制得；
The full biomass-based composite material of the invention is prepared by natural plant fiber (material A), carboxylation polyether interface modifier (material B) and polylactic acid.
本发明采用预处理后的天然植物纤维（A料）与羧化聚醚界面改性剂（B料）以及聚乳酸制备复合材料。
Lactide monomer was obtained by vacuum distillation of lactic acid. After purification by recrystallization, the lactide was polymerized to polylactic acid with zinc oxide as the catalyst.
乳酸经减压蒸馏制得单体丙交酯，再以氧化锌为催化剂聚合得到聚乳酸。
Lactide is the intermediate for preparing of polylactic acid from lactic acid. The yield of lactide is the key factor to influence the extensive production and low the cost of polylactic acid.
丙交酯是以乳酸为原料制备高分子量聚乳酸的中间体，因此丙交酯的收率是影响聚乳酸大规模生产及其生产成本的关键因素。
The present invention belongs to the macromolecular material technical field and concretely relates to natural fibre enhanced polylactic acid composite material and a preparation method thereof.
本发明属于高分子材料技术领域，具体涉及一种天然纤维增强聚乳酸复合材料及其制备方法。
In addition, lactic acid can be polymerized to form the biodegradable and recyclable polyester polylactic acid, which is considered a potential substitute for plastics manufactured from petroleum.
并且由乳酸还可合成生物可降解性塑料，成为石油化工生产通用塑料的替代品。
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