醋酸丁酸纤维素

Suitable water-immiscible organic solvents include aromatic hydrocarbons, eg toluene, xylene, naphthalene, tetrahydronaphthalene and methyl naphthalene; chlorinated aromatic hydrocarbons, eg chlorobenzene, fluorobenzene, chloronaphthalene and bromonaphthalene; esters, eg butyl acetate, ethyl acetate, methyl benzoate, ethyl benzoate, benzyl benzoate, butyl benzoate, phenylethyl acetate, butyl lactate, benzyl lactate, diethyleneglycol dipropionate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, di(2-ethylhexyl) phthalate; alcohols having six or more carbon atoms, eg hexanol, octanol, benzyl alcohol, phenyl ethanol, phenoxy ethanol, phenoxy propanol and phenoxy butanol; ethers having at least 5 carbon atoms, preferably C 5-14 ethers, eg anisole and phenetol; nitrocellulose, cellulose ether, cellulose acetate; low odour petroleum distillates; turpentine; white spirits; naphtha; isopropylbiphenyl; terpene; vegetable oil; mineral oil; essential oil; and natural oil; and mixtures of any two or more thereof.

适用于水互溶的有机溶剂包括芳香族碳氢化合物，如甲苯，二甲苯，萘，四氢萘和甲基萘；氯代芳香族碳氢化合物，如氯苯，氟，氯萘和萘；酯类，如醋酸丁酯，醋酸乙酯，苯甲酸甲酯，苯甲酸乙酯，苄酯，苯甲酸正丁酯，苯，醋酸丁酯乳酸，乳酸苄，二甘醇二丙酸酯，邻苯二甲酸二甲酯，邻苯二甲酸二乙酯，邻苯二甲酸二丁酯，二（2乙基己基）酯；醇有6个或更多碳原子，如己醇，辛醇，苯甲醇，苯乙醇，苯氧基乙醇，丙醇和苯氧基苯氧丁醇；醚至少有5个碳原子，最好荤5-14醚，如苯甲醚和phenetol；硝化棉，纤维素醚，醋酸纤维素，低气味石油蒸馏；松节油；白酒，石脑油isopropylbiphenyl；萜类，植物油，矿物油，挥发油；和天然油，以及任何两个或两个以上其混合物。

This product and PVC and ethylene vinyl acetate copolymer has good histocompatibility, but also acrylic and poly methyl methacrylate, polyvinyl butyral, nitro cellulose, ethyl butyl acetate fibers and cellulose, such as miscibility.

本品与聚氯乙烯和乙烯醋酸乙烯共聚物有良好的相溶性，还和聚甲基丙稀酸甲酯、聚乙烯醇缩丁醛、硝基纤维素、醋酸丁酯纤维和乙基纤维素等相溶。

A Silvery ABS plastic surface paint was given by mixing thermoplasticity acrylic resin with cellulose acetate butyrate and different addition agents , the cohesion mechanism of the coat of the paint ,the election of solvents and the mixing of different addition agents were in detail reported.

用热塑性丙烯酸树脂，醋酸-丁酸纤维素，不同助剂等原料配制出ABS塑料用表面涂料-银色漆光油；并对涂层附着机理，溶剂的选用，不同助剂的调配作了较为详细的叙述。

Water,propylene glycol,butylene glycol,glyceryl polymethacrylate,peg-7 glyceryl cocoate,biosaccharide gum-1,phenoxyethanol,hydroxyethylcellulose,ppg-26-buteth-26,chondrus crispus,peg-40 hydrogenated castor oil,sodium hydroxide,methylparaben,benzophenone-4,disodium edta,citrus aurantium dulcisoil,sorbic acid,butylparaben,ruscus aculeatus root extract,glycyrrhiza glabraroot extract,aesculus hippocastanumseed extract,pentadecalactone,iris germanica root extract,rentinyl palmitate,tocopheryl acetate,sodium hyaluronate,citrus aurantium amaraoil,sorbitol,propylparaben,ethylparaben,limonene,linalool,yellow 5,red 4,red 33

水，丙二醇，丁二醇，甘油聚甲基丙烯酸酯，PEG-7 椰子油酸单甘酯，多醣物质，苯氧乙醇，羟乙基纤维素，PPG-26-丁醇聚醚-26，卡拉胶，PEG-40氢化蓖麻油，氢氧化钠，羟苯甲酯，二苯酮-4，乙酸乙二胺二钠，甜橙油，山梨酸，羟苯丁酯，假叶树根萃取，甘草根萃取，欧洲七叶树籽萃取，环十五内酯，鸢尾花根萃取，维他命A酯，醋酸盐维他命E ，透明质酸钠，苦橙油，山梨醇，羟苯丙酯，羟苯乙酯，柠檬精油，芳樟醇，黄5，红4，红33水：几乎所有护肤品成分第一位都是水。丁二醇：保湿剂及溶剂，质地温和

Water,propylene glycol,butylene glycol,glyceryl polymethacrylate,ascorbic acid,peg-7 glyceryl cocoate,biosaccharide gum-1,peg-40 hydrogenated castor oil,ppg-26-buteth-26,phenoxyethanol,hydroxyethylcellulose,xanthan gum,methylparaben,pentadecalactone,citrus aurantium dulcisoil,disodium edta,sorbic acid,tocopheryl acetate,butylparaben,retinyl palmitate,iris germanica root extract,sodium hyaluronate,ethylparaben,propylparaben,citrus aurantium amara oil,limonene,linalool

水，丙二醇，丁二醇，甘油聚甲基丙烯酸酯，维生素C衍生物，PEG-7 椰子油酸单甘酯，多醣物质，PEG-40氢化蓖麻油，PPG-26-丁醇聚醚-26，苯氧乙醇，羟乙基纤维素，山羊胶，羟苯甲酯，环十五内酯，甜橙油，乙酸乙二胺二钠，山梨酸，醋酸盐维他命E，羟苯丁酯，维他命A酯，鸢尾花根萃取，透明质酸钠，羟苯乙酯，羟苯丙酯，苦橙油，柠檬精油，芳樟醇

The degree of butyryl substitution of CAB increased and the degree of acetyl substitution of CAB decreased as the butyryl mol content in the reaction system increased.

制备得到的纤维素醋酸丁酸酯的丁酯取代度最高可达2.53，乙酯取代度最高可达2.98。

In this paper the study on optimizing the esterification of cellulose and some character of CAB(the degree of substitution of cellulose, solubility, the thermal properties and molecular weight) was discussed. The mechanism of the esterification of cellulose in butyric acid/ acetic acid/ butyric anhydride which comprises the creation of the acetic butyric anhydride, acetyl cation and butyryl cation was investigated by the study of the effect of the content of the organic acid and anhydride on the degree of acetyl and butyryl substitution of cellulose.

最后本文根据纤维素在丁酸/乙酸/丁酸酐中的酯化反应中有机酸以及酸酐的添加量对最后产物纤维素醋酸丁酸酯中乙酯或者丁酯取代度的影响，提出纤维素在丁酸/乙酸/丁酸酐中的酯化反应经历一个混和酸酐以及乙酰碳正离子、丁酰碳正离子的生成过程。

Cellulose acetate butyrate with high or low degree of butyryl substitution was synthesized in heterogeneous system(butyric acid/ acetic acid/ butyric anhydride/ sulfuric acid) using the "free solvent" method. The effect of activation time, esterification time, the molecular weight of cellulose and the content of the organic acid or anhydride on the degree of acetyl and butyryl substitution of cellulose was discussed.

在非均相体系中进行酯化反应，采用&反应性溶剂&，以硫酸作为催化剂合成出从高丁酯含量到低丁酯含量的纤维素醋酸丁酸酯，研究有机酸以及酸酐的添加量、活化时间、酯化反应时间以及原料纤维素的分子量对酯化产物纤维素醋酸丁酸酯的影响。

This article has briefly described the situation of auto refinish coatings in the mainland of China.

简述了中国大陆汽车修补漆现状，介绍了醋酸丁酸纤维素在汽车修补漆中的应用。

Cellulose acetate butyrate,which is widely applied as coatings additive, is synthesized in the heterogeneous system. The activation is required because of the strong hydrogen intramolecular and intermolecular bondings and the regulation of the crystalline region in cellulose microfibrils.

中文摘要纤维素醋酸丁酸酯（Cellulose acetate butyrate是一种广泛应用于涂料工业的添加剂，由于纤维素具有分子内与分子间强氢键作用以及纤维素纤维的局部规整的结晶序列等特征，一般纤维素在酯化反应前都需要进行预活化处理，工业上纤维素醋酸丁酸酯的合成方法一般都在非均相体系中进行的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。