Characteristic properties of cutting fluid additives derived from half esters of dimer acids

A number of half esters were prepared from the reaction of alcohols with dimer acids and screened for anti-rust properties and antimicrobial activity in spent coolants of water-based cutting fluids. Aqueous solutions of triethanolamine salts with lower-alcohol half esters of dimer acid showed good anti-rust properties for water-based cutting fluids.     

Characteristic properties of cutting fluid additives derived from the adducts of diamines and acid chlorides

A number of N,N′-diacylalkyldiamines were prepared from the reaction of acid chlorides with 1,8-diaminooctane and 1,12-diaminododecane and screened for anti-rust properties and antimicrobial activity in spent coolants of water-based cutting fluids. Aqueous solutions of N,N′-dihexanoyl-1,8-diaminooctane and N,N′-isobutyroyl-1,12-diaminododecane showed good anti-rust properties for water-based cutting fluids. Aqueous emulsions of N,N′-dibutyroyl-, dipentanoyl-, dihexanoyl- and dioctanoyl-1,12-diaminododecane showed good lubricities and antimicrobial activity for water-based cutting fluids.     

Characteristic properties of cutting fluid additives derived from the reaction products of hydroxyl fatty acids with some acid anhydrides

Several adducts were prepared from the thermal reaction of hydroxyl fatty acids (ricinoleic acid oligomers, 12-hydroxystearic acid oligomers, oleyl alcohol, dehydrated castor oil fatty acids, and dimer acid) with maleic anhydride and screened as water-soluble cutting fluids. For example, aqueous solutions of triethanolamine salts with the products of ricinoleic acid oligomers, 12-hydroxystearic acid dimer, and 12-hydroxysteric acid hexamer showed good antirust properties for waterbased cutting fluids. Various half esters of hydroxyl fatty compounds with acid anhydrides were prepared. Aqueous solutions of triethanolamine salts of half esters of maleic anhydride and succinic anhydride and phthalic anhydride with hydroxyl fatty acids gave good antirust and antiwear properties for waterbased cutting fluids.     

Characteristic properties of cutting fluid additives made from the derivatives of some polymeric nonionic surface-active agents

A series of esters was prepared from the reaction of acid chlorides with polymeric nonionic surface-active agents (copolymer of propylene oxide and ethylene oxide), and they were screened for antirust and other properties associated with water-based cutting fluids. An aqueous emulsion of an adduct of triethanolamine and the oleic acid ester of polymeric nonionic surface-active agent showed excellent antirust properties when used as a water-based cutting fluid. The emulsion of triethanolamine and the mono nonyl ether of the surface-active agent also showed antirust properties.     

Adducts of cyclic acid anhydrides and fatty amines as anti-rust additives in water-based cutting fluids

A variety ofN-alkyl carboxylic acid amides was prepared from the reaction of cyclic dicarboxylic acid anhydrides and various amines, and screened for anti-rust properties and antimicrobial activity in spent coolants of water-based cutting fluids. The triethanol amine salts of the adducts of maleic anhydride with octylamine, decylamine, dodecylamine and oleylamine, and the one of phthalic anhydride with octylamine showed both good anti-rust and antimicrobial activity.     

Characteristic properties of cutting fluid additives derived from fatty alcohols

Many 3-aminopropyl alkyl ethers were prepared and their characteristics as water-based cutting fluids were examined. 3-Aminopropyl octyl-, decyl- and dodecyl ethers showed good lubricities and antimicrobial properties for a water-based cutting fluid.     

Half esters of dibasic acids as additives in water-based cutting fluids

Several half esters from long chain dibasic acids were prepared, and corrosion and lubricity tests for these products as water-based cutting fluid additives were made. Triethanolamine salts of half esters of sebacic acid and dodecanedioic acid showed effective rust-inhibiting and anti-wear properties for water-based cutting fluids.     

Water-soluble metalworking fluid additives derived from the derivatives of 3-mercaptopropionic acid

A number of derivatives of thiocarboxylic acid were prepared from the reaction of 3-mercaptopropionic acid and alkyl halides, and screened for anti-rust properties in water-soluble metalworking fluids. Aqueous metalworking fluids containing octylthiopropionic acid or hexylthioacetic acid showed excellent anti-rust properties for water-soluble metalworking fluids.     

Antimicrobial properties of boric acid esters of alcohols

A variety of boric acid esters of various alcohols were prepared and screened for antimicrobial activity in spent coolants of water-based cutting fluids. Boric acid esters of triethylene glycol, dipropylene glycol, geranic acid monodiethylene glycol and some hydroxy amines, such as 5-aminopentanol, showed good antimicrobial activity. To whom correspondence should be addressed.     

Enzymatic preparation of polyethylene glycol esters of castor oil fatty acids and their surface-active properties

This study concerns the preparation and evaluation of nonionic surfactants prepared from polyethylene glycol (PEG) esters of castor oil fatty acid, a source of hydroxy fatty acid. A lipase-catalyzed esterification reaction has been employed to prepare PEG esters of hydroxy acid to overcome problems associated with chemical processes. Castor oil fatty acid (85% ricinoleic acid) was mixed with PEG of different molecular weight. Rhizomucor miehei lipase was added as catalyst (10% level) and the reaction was continued at 60°C under 2 mm Hg pressure for 360 min. Conversion of PEG to esters was in the range of 86–94%, depending on the molecular size of PEG. The products were isolated and examined for surface activity by surface tension measurement. Surface tension values measured at 25°C were about 36–37 dynes/cm.     

聚苯胺无溶剂聚氨酯防锈涂料的研制

介绍了以蓖麻油酸改性环氧酯为含羟基树脂,以二丁胺改性1,6-己二醇二缩水甘油醚为反应性稀释剂,配合聚苯胺/凹凸棒纳米复合材料、磷钛粉、吸水剂等组成A组分,采用含—NCO基的聚氨酯预聚体为B组分,将A组分和B组分按规定比例混合均匀后涂布在金属表面即形成一种无溶剂、不含重金属的新型环境友好金属防锈涂料。     

互穿网络丙烯酸树脂的合成及其对涂膜性能的影响

介绍了用蓖麻油酸聚合物与丙烯酸树脂合成互穿网络丙烯酸树脂的方法,比较了互穿网络丙烯酸树脂与未改性的丙烯酸树脂在制漆过程中的差异以及对涂膜性能的影响。     

反应型表面活性剂-蓖麻油酸甲酯硫酸铵的合成

介绍了一种新颖反应型表面活性剂 -蓖麻油酸甲酯硫酸铵的合成方法 ,突出介绍了氨基磺酸作为硫酸化剂的优点 ,详细讨论了各种因素的影响 ,得出了最佳工艺条件 :配比为 n(蓖麻油酸甲酯 )∶n(氨基磺酸 )∶n(尿素 ) =1 .0 0∶ 1 .0 5∶ 0 .80 ,反应时间 3h,反应温度 1 2 0～ 1 30°C。     

马来酸蓖麻醇酯--苯乙烯共聚物的合成

以蓖麻醇酸和马来酸酐为原料在92-96℃恒温反应2h，生成马来酸蓖麻醇酯。再与苯乙烯进行共聚，适当改性后合成一种具广泛用途的多功能高分子新型材料，并对其合成条件进行了初步的探讨。     

New additives derived from fatty acids for water-based cutting fluids

A variety of derivatives from long chain fatty acids were prepared, and corrosion and lubricity tests for these products as water-based cutting fluid additives were carried out. We have found that triethanolamine salts of 11-(carboxymethylthio)-undecanoic acid (II), 10,11-dichloromethylene undecanoic acid (IV) and 12-isovaleroyloxy stearic acid (VI) showed effective rust-inhibiting and anti-wear properties for water-based cutting fluids.     

Novel bisphosphonates via castor oil

Hydroxy fatty acids (HFAs) have long been a staple component of feedstock oils with uses ranging from motor oils to food to pharmaceuticals. Castor oil, which contains the HFA ricinoleic acid as its principal component, is the most widely used source of HFA in the world. In addition, bisphosphonates are a functional moiety that has been shown to display a variety of industrial applications, ranging from use in water softeners to osteoporosis drugs, primarily due to their affinity for the calcium ion. We have long been interested in the modification of ricinoleic acid from castor oil to phosphorus derivatives, including α-hydroxy phosphonates and phosphonic acids, and have now accomplished the synthesis of a family of ricinoleic-derived bisphosphonates: one that retains the cis alkene found in ricinoleic acid and one where the alkene has undergone hydrogenation. These compounds have been produced in high yields and high purity and the synthesis of these compounds is reported.     

Products from the reaction of fatty acids with ketones and their characteristic properties as cutting fluids additives

Hydroxy acids were synthesized in good yields from ketones and fatty acids by the use of lithium naphthalene in the presence of diethylamine. For example, from cyclohexanone and undecylenic acid (I), 2-(1-hydroxy-1-cyclohexyl)-10-undecenoic acid (III) was obtained in 92% yield. Hydroxy acids were treated withp-toluenesulphonic acid to give corresponding unsaturated fatty acids. From the reaction of (III), 2-(1-cyclohexenyl)-10-undecenoic acid (IV), a 3,4-unsaturated acid was obtained (yield 59%). Corrosion and lubricity tests for these products as water-based cutting fluid additives were carried out. We have found that triethanolamine salts of 2-cyclohexenyl and 2-hydroxycyclohexyl fatty acids showed effective rust-inhibiting and antiwear properties for water-based cutting fluids.     

蓖麻油基二元酸在PVC制品中的应用研究

以蓖麻油酸与丁二酸酐、马来酸酐等酸酐合成了五种蓖麻油基二元酸.通过电导率法、热老化烘箱法和刚果红法等方法研究了蓖麻油基二元酸对聚氯乙烯（PVC）热稳定性能的影响.研究结果表明,蓖麻油基二元酸单独使用时可改善PVC初期着色,且热稳定效果随其取代基的不同而不同.以β-二酮为对比,考察了蓖麻油基二元酸对异辛酸钙/马来酸蓖麻醇酯锌（IA-Ca/RAM-Zn）和硬脂酸钙/硬脂酸锌（CaSt2/ZnSt2）体系的热稳定效果的影响,发现其与钙锌盐之间具有协同效应.且当添加0.3份的马来酸蓖麻醇酯和β-二酮于CaSt2/ZnSt2体系时,静态热稳定时间分别为26.9 min和26.3 min.     

水溶性防锈添加剂的合成

以三乙醇胺、硼酸、十二烯基丁二酸为原料合成高性能防锈剂硼酸三乙醇胺酯十二烯基丁二酸酰胺,产品具有很好的防锈能力。     

一种新型蓖麻油酸季戊四醇酯的制备及应用

用季戊四醇和蓖麻油酸通过酯化反应反应制备了蓖麻油季戊四醇酯。采用红外光谱仪和核磁共振仪对制备的产品的化学结构进行表征。并将其作为增塑剂与聚氯乙烯（PVC）共混,研究了塑化PVC的平衡扭矩、热性能和力学性能,对该增塑剂在不同溶媒中的耐迁移性进行了研究,并与邻苯二甲酸二辛酯和环氧大豆油的塑化性能进行了对比。结果表明,蓖麻油季戊四醇酯塑化PVC的加工平衡扭矩为14.9 N·m,改善了PVC的加工稳定性;塑化PVC的拉伸强度为23.28 MPa,断裂伸长率为263.13 %,耐迁移性能较邻苯二甲酸酯和环氧豆油较好,可以作为PVC增塑剂使用。