另一方面易于生物降解脂肪族聚酯的,但缺乏很好,在大多数应用中的关键力学性能。
Aliphatic polyesters on the other hand are readily biodegradable, but lack good mechanical properties that are critical for most applications.
脂肪族聚酯具有更好的淀粉,其中有许多羟基防潮。
Aliphatic polyesters have better moisture resistance than starches, which have many hydroxyl groups.
聚乳酸(PLA)是一种线性脂肪族聚酯的聚乳酸中自然产生的或由丙交酯开环缩合催化剂组产生。
Polylactic acid (PLA) is a linear aliphatic polyester produced by poly-condensation of naturally produced lactic acid or by the catalytic ring opening of the lactide group.
这些脂肪族聚酯然而,更昂贵和缺乏机械强度比传统塑料如聚乙烯。
These aliphatic polyesters are, however, much more expensive and lack mechanical strength compared with conventional plastics such as polyethylene.
合成脂肪族聚酯二醇的合成及二羧酸经缩合聚合,和已知的完全生物降解土壤和水。
Synthetic aliphatic polyesters are synthesised from diols and dicarboxylic acids via condensation polymerisation, and are known to be completely biodegradable in soil and water.
生物胺是一类含氮的脂肪族或杂环类低分子化合物,对动植物和微生物活性细胞有重要的生理作用。
Biogenic amine is a kind of low molecular weight compounds containing nitric fatty group or heterocycle group. They have biological importance in vegetable, microbial and animal cells.
生物胺是一类含氮的脂肪族或杂环类低分子化合物。
Biogenic amine is a kind of low molecular compounds belonging to nitric fatty group or heterocycle group.
利用IPN技术将芳香族异氰酸酯引入互穿聚合物网络涂层,取代部分脂肪族异氰酸酯。
An aromatic isocyanate is introduced into an IPN coating system to partly substitute the aliphatic isocyanate.
族维他命能够帮助释放食物中脂肪,糖和蛋白质的能量,使你时刻处在营养平衡状态。
B vitamins help release energy from fats, carbohydrates, and proteins in your food, keeping you in nutritional balance.
任何一种脂肪族的一元羧酸,构成油质分子的部分,可通过水解脂肪生成。
Any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis.
介绍脂肪族聚酮的结构、性能和应用。
The structure, property and application of aliphatic polyketones are introduced.
柏木醚是柏木醇的脂肪族醚。
在聚酯中引入刚性链段(即将脂肪族聚酯与芳香族、液晶基元共聚合)可改善聚酯的加工性能;
The processability of polyesters could be improved significantly after incorporating stiff chain segment through copolymerization of aliphatic polyester with aromatic liquid crystal element.
在生产实践的基础上对脂肪族高效减水剂的合成反应机理进行了深入的分析,提出了脂肪族减水剂的分子示意式。
On the basis of production practice, the reaction mechanism of highly efficient aliphatic water reducer was analyzed in-depth, its molecular formula was put forward.
脂肪族聚酯没有用来生产纤维,可能是熔点低的缘故。
Aliphatic polyesters are not used for fiber production, because of their low melting points.
具有保色性好,耐磨、耐碰撞、耐海水和矿物油等。也耐脂肪族溶剂和植物油的溅污。
It features excellent colour retention, resistance to abrasion, impact, seawater and mineral oil. Also resistance to splashes of aliphatic solvent and vegetable oil.
结果表明,萃取物中含有脂肪族结构、芳香结构、大量含氧基团,并含有脂环化合物。
The results indicated that extracts contain aliphatic, aromatic and naphthenic compounds and a large amount of oxygen containing group.
戊二醛是重要的饱和脂肪族二元醛,广泛应用于医用、制革、油田等行业。
Glutaraldehyde is an important saturated aliphatic binary aldehyde which is widely used in medical industry, leather production, oil field, and so on.
合成了以羟基封端的脂肪族聚碳酸酯-聚乙基醚碳酸酯二醇(PEECD),并用于环氧(EP)树脂的增韧。
One kind of hydroxyl - terminated aliphatic polycarbonate, i. e. poly(ethylene ether carbonate) diol(PEECD) was synthesized and used to toughen epoxy resin (EP) .
木质素结构中含有芳环、脂肪族侧链和许多活性官能团,具有一定的离子交换与吸附性能。
Lignin consists of both aromatic and aliphatic portions containing many active functional groups, which suggests some ion exchange and adsorption properties.
脂肪族聚氨酯的结晶行为与一般结晶聚合物相同,但与芳香族聚氨酯形成鲜明对照。
The Crystallization behavior of ASPU is the same as general crystal polymers but much more different from aromatic polyurethane.
概述了疯草三类主要有毒成分:脂肪族硝基化合物、硒及硒化合物、疯草毒素(生物碱)。
This article summarized the three toxic constituent of locoweed: aliphatic nitro compound, selenium and selenide, locoweed toxin (alkaloids).
结果表明:烈香杜鹃精油化学成分以高级脂肪酸酯、酮、芳香族化合物及芳香杂环化合物为主。
The results showed that the volatile constituents of Rhododendron athopogoides Maxim, mainly includes aliphatic acid and ester, aldehyde, ketone, aromatic and its heterocyclic compounds.
介绍了一种合成可降解脂肪族聚酯的新方法。
A new method for synthesis of biodegradable aliphatic polyester was discussed in this article.
本文旨在制备低成本且力学性能和热性能俱佳的可生物降解脂肪族嵌段共聚物。
This paper aims at preparing biodegradable aliphatic block copolymers with combined mechanical and thermal properties with reduced cost.
己二酸是工业上最重要的脂肪族二元羧酸,是重要的有机化工原料。
Adipic acid is the most important dicarboxylic acid, and it is a valuable raw material used in the chemical industry.
一类以聚乳酸及其同系物为代表的、可生物降解的新型合成脂肪族聚酯则有可能成为21世纪的一种“绿色材料”。
The biodegradable aliphatic polyesters such as PLA and its homologues have been developed and will be" Green Material" in 21 century.
合成了一种新的聚脂型脂肪族多嵌段聚氨酯(ASPU)系列样品。
A new series of aliphatic segmented polyurethanes (ASPU) had been prepared and their infrared spectra were assigned.
合成了一种新的聚脂型脂肪族多嵌段聚氨酯(ASPU)系列样品。
A new series of aliphatic segmented polyurethanes (ASPU) had been prepared and their infrared spectra were assigned.
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