Alkyd resins of seed oil of mc43 are found to have fast drying characteristic, mainly due to the presence of 56. The principal applications are furniture and architectural coatings, product finishes, specialpurpose coatings and automotive refinishing primers. Alkyd resins manufacturing, formulation and processing. Unlike most fast dry systems, the addition of vinyl toluene provides compatibility with both aliphatic and aromatic solvents giving the paint formulator a great deal of flexibility in formulating paints. Soyabean oil modified alkyd resin served as the reference alkyd resin. Chemical ijcpt synthesis and characterization of new. New alkyd resinswere synthesized by reacting sunflower oil or. In this study, the objective is divided into two sections. Functionalized resins for the synthesis of peptide. Isomergic acid sf is a very bright conjugated fatty acid with very good colour stability. A new, easy and costeffective synthetic procedure for the preparation of thermosetting melaminebased epoxy resins is reported. In this study, a new alkyd based resin was formulated using long oil alkyd and melamine based hyperbranched polymer having 24 functional groups on its structure. Faster drying long oil alkyd resins are produced based on soybean oil used as sole film former for decorator paint. Modified alkyd resins as the versatile coating materials.
Preparation of designer resins via living free radical. Using florys basic method, an equation is derived for the gelation point of oil. Alkyd resins with 100% phthalic anhydride were prepared from jatropha oil by twostage alcoholysispolyesterification reactions. Alkyd resins are frequently classified according to the oil type and the oil length 2. Synthesis and characterization of an adipic acidderived. Pdf synthesis and characterization of alkyd resin from. Synthesis and film properties of epoxy esters modified with amino. The hyperbranched epoxy resins hbe composed of bisphenol a bpa and polyethylene glycol peg as reactants and pentaerythritol as. Alkyd coatings are typically sold in three classes. Synthesis and characterizations of melaminebased epoxy resins. The traditional oils such as soya bean, coconut oil, sunflower oil, linseed oil are used in the synthesis of alkyd resin 811. Alkyd resins are important ingredients in many synthetic paints, varnishes and enamels and find also applications as thermosetting plastics that can be molded. Epoxy resins synthesis consists in the glycidylation of the different gdfx bisphenols, using. Esterification process took place in the second stage through adding phthalic anhydride and xylene to the mixture.
Eterkyd 3755x80 synthetic fatty acid alkyd resin synthetic fatty acid alkyd resin for polyurethane coatings description. The oligomerization of glycerol was conducted in the presence of lioh 0. Standard practices for fmocbased solidphase peptide. Synthesis, thermal properties and curing kinetics of. Significant scientific and economic benefits may be derived from investigating the best choice of catalyst in the alkyd resin synthesis. Often the oilmodified alkyds are coreacted with either styrene or silicones to give resins with modified properties. Study of the physico chemical properties of alkyd resin. As indian industries are producing paint of amount approximately rs. Epoxy resins are one of the most important thermoset materials and are usually synthesized by reacting. Alkyd resins include a very high proportion of common binders, which are used in the pants. The oil and alkyd resin were characterized and evaluated by standard methods, for their physicochemical properties. To improve the performance characteristics, resins were blended with different wt % of epoxidized jatropha oil ejo and aqueous citric acid solution without the addition of any other catalyst or solvent. The effect of catalyst type and concentration on the production of alkyd resin using castor seed oil cso was evaluated. In this research therefore, the effect of catalyst type and concentration on dehydrated castor oil based resin were examined.
It intends to maximize percentage yield of alkyd resin oil based p. Kinetics of castor oil alkyd resin polycondensation reaction. Oil extracted from the seeds of breadfruit were refined and characterized in terms of acid, iodine and saponification values. Kinetic studies in the synthesis of alkyd resin using. Synthesis, characterization and performance evaluation of. Alkyd resin production process filetype pdf editor average ratng. Derived epoxy resin rensselaer polytechnic institute.
The alkyd resins can also be combined with other resins such phenolic resins, a m o n o resins, epoxies, acrylics, and polyurethanes to give special coating materials. Pdf synthesis and characterization of alkyd resin based. Gross department of chemistry and chemical biology, new york state center for polymer synthesis, rensselaer polytechnic institute, troy, new york 12180. The resultant modified equation is useful when phthalic anhydride is used as the dibasic acid because of the widely differing carboxyl group reactivities. The free phenol and free formaldehyde content of the chinese firbased adhesive were sharply decreased compared to normal pf resin by more than 50 %. In this work, glutamic acid as well as nacylated and nalkylated derivatives there of were evaluated as biobased substitutes for these aromatic diacid monomers in the synthesis of alkyd resins. Some resins are also manufactured by partial modification of natural precursor polymer by. The resins beads in the column are a polymer, such as polystyrene ps or polyethylene glycol peg, that can be functionalized with several. Alkyd resins technology handbook download ebook pdf. A series of polymer alloys based on different compositions of nylon 6,6 oligomers nyl66os and epoxy resin have been prepared. The oil length is defined as the weight percent of oil present in the resin. For the formation of film on the substrate surface. Standard practices for fmocbased solidphase peptide synthesis in the nowick laboratory version 1.
Materials the castor seeds shown in figure 1 were purchased from achi in orji river, enugu state. Synthesis of alkyd resin from nonedible jatropha seed oil. Modified alkyd resins as the versatile coating materials derived from vegetable oils a hasnat natural product and polymer research laboratory, department of chemistry, g. The combination of ascorbic acid derivativesiron salts as. The first stage is to convert sunflower oil or linoleic acid to monoglycerides as a polyol by alcoholysis. A series of alkyd resins having different amount of jatropha oil viz. Example of an alkyd resin obtained from the reaction of phthalic acid anhydride, glycerol and linoleic acid. Uzoh cf, onukwuli od, emeka m 2015 kinetics of castor oil alkyd resin polycondensation reaction. Analysis of polyesters and alkyd resins pdf free download. Alkyd was a term coined by kienle from alcohol and acid. Synthesis of water dispersible alkyd resins were carried out in two ways. Owing to their incorporation of volatile organic solvents and to their low durability on exterior.
The free adobe acrobat reader allows you to view, navigate, and print pdf files across all major computing platforms. A one pot synthesis of alkyd resins based on the camelina sativa oil as a new renewable raw material and on polyglycerols as polyols was carried out. Blends of epoxidized alkyd resins based on jatropha oil. There was probably crosslinking of the alkyd chains resulting in the formation of a large molecular weight polymer which could have resulted in increased viscosity of the reaction. Synthesis and characterization of an adipic acidderived epoxy resin. Alkyd resin was synthesized from the flamboyant delonix regia seed oil fbo and the physicochemical properties of both the oil and the consequent alkyd resin were studied. Developed in the 1920s, alkydbased enamel paints were once one of the most important types of surface coating. The resins were characterised in terms of structure, molecular weight. They are utilized in a large variety of applications as a result of their exceptional formulating versatility, low. Unlike other nobake mould technologies the process yields no toxic fumes, but the moulds need a longer air curing. College affiliated to m j p rohilkhand university shahjahanpur, u. An alkyd is a polyester resin commonly derived from fatty acids, polyhydric alcohol, and dibasic acids, which has many applications in the coatings industry due to its low cost, broad functionality, and production from renewable seed oils.
Domalkyd alkyd emulsions and water thinnable resins domopol polyester emulsions and water thinnable resins domopur polyurethane dispersions pud waterbased resins environmentally friendly highquality coatings with helios resins golden resins helios resins is a separate business unit of helios, now part. Publishers pdf, also known as version of record includes final page, issue and volume. However, till today, there has been practically no information available for the synthesis of alkyds using ccso. The extent of reaction and average degree of polymerisation were calculated from the end group. Synthesis and characterization of alkyd resins based on. Synthesis of fast drying long oil alkyd resins using seed. Alkyd resin, a complex oilmodified polyester that serves as the filmforming agent in some paints and clear coatings.
User guide on how to generate pdf versions of the product. Preparation and characterization of alkyd resins based on. Despite the growing popularity of acrylic, polyurethane and. Hence, alkyd resins are one of the important ingredients in the synthetic paint industry. Overview in the united states vinyl toluene has been used to modify alkyd resins for many years. Synthesis and characterisation of alkyd resins with. Ebook alkyd resins technology handbook as pdf download. Alkyd resin was prepared from shear butter oil sbo using the two step procedures. Lithium hydroxide, lead ii oxide, calcium carbonate, sodium hydroxide and calcium oxide were investigated. Synthesis and characterization of phenoxy resins prepared from. Glycerol and phthalic anhydride were used as the polyol, and polybasic acid respectively in the synthesis of the resins. Biobased polyamide and polyhydroxy urethane coating resins.
Abstract this work describes the synthesis of various phenoxy resins by in situ fusion reaction of aromatic dihydroxyl and low molecular weight. Unlike for tung oil 80% of eleostearic acid, the risk of gelation for seed oil of. Heating tempomethyl resin with a variety of functionalized styrene and acrylate monomers gives larger resin beads via living free radical polymerization. Synthesis and characterisation of alkyd resins with glutamic acidbased monomers joris hulsbosch, a laurens claes, a dries jonckheere, a dirk mestachb and dirk e. In the beginning, we have used pure ccso and a blend with prunus mahaleb as a substitute for fatty acids in order to synthesize a new alkyd resin. Resins are polymeric compound which are available in nature and are also manufactured by synthetic routes. Alkyd resins have acquired great importance because their economy, availability of raw materials, biodegradability, durability, flexibility, good adhesion and ease of application 7. Preparation of renewable epoxyamine resins with tunable. Fourier transform infrared ftir spectroscopy was used to investigate. The early research resulting in alkyd resins was done by a number of researchers led by carothers 1 and kienle 2 who provided a clearer understanding of the chemical reactions governing alcoholacid polymeric resins from multifunctional monomers.
1296 14 1504 1398 1480 822 792 87 481 471 553 836 825 751 255 362 175 746 46 418 889 860 1118 100 612 559 519 447 703 1244 455 18 1025 1085 256 400 742 1181 717 120