聚交酯 的英文怎麼說
中文拼音 [jùjiāozhǐ]
聚交酯
英文
pla-
Synthesis of a novel second order nonlinear optical chromophore and its polyurethane polymers
一種新型二階非線性光學功能分子及其交聯聚氨酯材料的合成The elasticity polyurethane joint sealing material is one kind of joint sealing materials for concrete pavement joint which can use at normal temperature. it will solidify by chemic - reaction when commix the polyurethane preploymer, cross link agent, filling, plasticizer and catalyzer
聚氨酯彈性嵌縫料是一種由聚氨酯預聚體主劑與交聯劑、填料、增塑劑以及催化劑混合后通過化學反應交聯固化的常溫施工式水泥混凝土路面用嵌縫材料。Pgla, one biodegradable material, is used to braid the conduits, which integrates the merits of its two aggregate ingredients. it is easy to adjust degrading rate to match the regeneration period of the nerve by changing the proportion of the two ingredients. the conduits are fabricated enlacing 2. 2 millimeter stainless steel on the braiding machine with 16 spindles using 2700 tex yarns. four conduits with different structures are braided : common braided structure, braided structure using braided ply yarn, braided structure with inserted reinforcing yarn and adding bridge - yarn structure, the last two conduits are new attempts to look for good shape - keeping structure, being able to lead the nerve to regenerate effectively
本課題選用可生物降解材料聚乙丙交酯（ pgla ）為原料，它兼具兩種聚合成分的優點，可以通過調節兩者聚合的配比來調節它的降解周期，使與神經再生的周期相吻合。導管的製作是在16錠編織機上採用2700tex紗線進行帶芯編織，芯子為直徑2 . 2mm的不銹鋼絲。共製作四種結構神經導管，分別為普通結構神經導管、編織線結構神經導管、加筋結構神經導管和加芯結構神經導管。The synthesis and thermal stability of poly
對聚丙交酯的合成和熱穩定性進行了研究。The product is adopting the numerator that the united states first enter synthesize the craft, the numerator that pass science designs, make epoxy and water polyurethane the combination, form polymers has each other thing of wearing the network construction, and join the functional monomer to it make the product can polymerize in normal temperature ; at 50 degress reporters conditions, the degree will be higher. make water - paint have excellent hardness, luster, chubbiness and attrition resistance, water resistance ， ethanol resistance ; make the water - paint with the product has epoxy and polyurethane excellent capability
該產品採用美國最先進的高分子合成工藝，通過科學的分子設計，使環氧樹脂與水性聚氨酯分散體有機地結合，形成具有互穿網路結構的高分子聚合物；並通過功能性單體的引入賦予該產品常溫自交聯功能，在50條件下成膜，交聯度會更高；使漆膜具有極好的硬度、光澤、豐滿度、耐水性及耐磨性，使配置的水性漆兼具聚氨酯及環氧樹脂的優異性能。The product is adopting the numerator that the united states first enter synthesize the craft, the numerator that pass science designs, make epoxy and water polyurethane the combination, form polymers has each other thing of wearing the network construction, and join the functional monomer to it make the product can polymerize in normal temperature ; make coating have excellent hardness, luster, chubbiness and attrition resistance, water resistance ， ethanol resistance ; make the water - paint with the product has epoxy and polyurethane excellent capability
該產品採用美國最先進的高分子合成工藝，通過科學的分子設計，使環氧樹脂與水性聚氨酯分散體有機地結合，形成具有互穿網路結構的高分子聚合物；並通過功能性單體的引入賦予該產品常溫自交聯功能，使漆膜具有極好的硬度、光澤、豐滿度、耐水性及耐磨性，使配置的水性漆兼具聚氨酯及環氧樹脂的優異性能。Studies on the synthesis and thermal stability of poly l - lactide
聚l -丙交酯的制備及其熱穩定性能的研究Mechanism of ferric alkoxides - initiated polymerization of lactide
醇鐵化合物引發丙交酯開環聚合機理的研究Poly l - lactide resins and fabricated forms for surgical implants - in vitro degradation testing
外科植入物用聚l -丙交酯樹脂及製品.體外降解試驗The study of spinning technology for pga fiber
聚乙交酯纖維紡絲工藝研究Secondly, based on the ideal characters of artificial trachea, three types of tubular fabric were designed as the stent : woven tubular fabric ; plating knitted tubular fabric and completely degradable knitted tubular fabric which is made of pgla only
其次根據人工氣管的理想性能特徵設計了三種用作支架的管道織物：機織組織管道織物、針織添紗組織管道織物和僅採用聚乙丙交酯編織的可完全降解的針織緯平針管道織物。Lactide were investigated. the key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times, stannous octoate concentration and polymerization time. the thermal stabilizing agent did not significantly affect the polymer molecular weight. the polymer with a viscosity average molecular weight beyond 200000 was fairly reproducible by optimizing the polymerization conditions. it was found that poly
單體重結晶次數辛酸亞錫濃度聚合時間等條件均是影響聚合物特性粘數的重要因素。熱穩定劑對聚丙交酯的分子量幾乎沒有影響。優化聚合條件可以獲得粘均分子量大於200000的聚丙交酯材料，聚合結果具有良好的重復性。Implants for surgery - copolymers and blends based on polylactide - in vitro degradation testing
外科植入物.聚交酯共聚物和共混物.體外降解試驗Influence of the dynamic and static degradable systems on poly - dl - lactide - co - glycolide degradable products in vitro
動靜態浸泡體系對聚乙交酯丙交酯體外降解產物的影響Key words : xinfapu, manufactory, polyurethane, elastomer, sieve plate, vibrating screen, pu web, roller xinfa polyurethane co., ltd xinfapu is a professional enterprises engaging in researching, developing, and production of series of high - tech polymer products
鑫發聚氨酯彈性篩板，又名礦用聚氨酯振動篩板網，開發於1989年， 92年獲得國家專利zl92 2 18879 . 3 ，中國商品交易會金獎。( 5 ) the article also investigate the recrystallization condition of crude lactide and point out that it also an important factor have influence on the purification production ratio. ( 6 ) give the kinetics equation of depolymerization reaction. by determination the degree of polymerization ( dp ) of the reaction system, we can get the kinetics data of the reaction
本文建議使用乙酸乙酯和異丙醇混合溶劑（ 6 ： 4 ）對丙交酯粗產物進行重結晶； （ 6 ）提出解聚反應的動力學方程，認為它是一個可近似處理為一級反應的連續反應，並可通過測定體系的平均聚合度的方法來得到包括活化能在內的反應動力學數據。The synthesis of midbody lactide for the preparation of pla is also catching more attention in this field. the present situation of lactide synthesis is high reaction temperature and low production ratio which lead to its high production cost and hamper its application in the material. the present research hot spot mainly focus on the improvement of reaction technique as well as the selection of catalyst
制備聚乳酸的中間體丙交酯（ lactide ）的合成也越來越受到重視。丙交酯的合成長期以來存在合成溫度高，收率較低的現狀，以至生產成本偏高，不能比較經濟規模化地應用於材料領域。研究的熱點主要包括丙交酯合成工藝條件的改進，催化劑的選擇與優化。Specific drug ? polymer interactions are engineered by optimizing the lactide to glycolide ratio ( l : g ratio ) and including specific polymer end groups
通過優化丙交酯與乙交酯比例（ l : g比）及加入特殊的聚合物末端基來獲得特殊的藥物-聚合物間相互作用。Firstly, after a great deal of investigation and research, the author chose polypropylene ( pp ) and poly ( glycolide - lactide ) ( pgla ) as the tubular fabric material and the acetic acid solution of chitosan as the coating material. polypropylene display superior biomechanical properties while the pgla fiber is characteristic of controllable biodegradability, and chitin integrate the excellent biological properties of both collagen and cellulose
本文首先選定了人工氣管支架織物的編織原料為具有生物學惰性及良好力學性能的醫用丙綸和具有優良生物性能的聚乙丙交酯；由於甲殼素兼具高等動物組織中的膠原和植物纖維中纖維素兩者的優異生物特性，所以在本課題中採用的人工氣管塗層材料為殼聚糖乙酸溶液。Silylate - terminated polyurethanes with built - in hydrophilic sites were synthesized. when the polymer is dispersed in water, the silane alkoxy end - groups of the polymer undergo hydrolysis, followed by condensation to form a stable cross - linked aqueous dispersion. tem studies indicated that with more incorporation of hydrophilic sites, the particle size of the dispersion decreased. it was also found that the film property depended on the particle size when the crosslinking density in particels was much higher. the average molecular weight of the elastically effective network chain mc measured by swelling experiments shows fairly good agreement with the theoretical value of mc. it was also found that the cross - linking density of the casting film may increase during the film formation and drying process
將硅氧烷封端的含親水基團的線性聚氨酯預聚體分散於水中，獲得穩定的聚氨酯分散體.由於硅氧基團水解、縮合，在分散體粒子內產生擴鏈交聯反應，生成了交聯水基聚氨酯分散體.透射電子顯微鏡研究表明分散體粒徑小、分佈寬.掃描電子顯微鏡研究了成膜結構及成膜性能與粒徑的關系.溶脹實驗計算獲得的兩交聯點之間的平均分子量與理論平均分子量相符.研究還發現此分散體膜在乾燥過程中可進一步交聯.膜的水溶脹及機械性能表明，此分散體具有極大的工業應用價值分享友人