Cyracure uvr6107 cycloaliphatic epoxide is a standard flexibilizing cycloaliphatic epoxide resin. Photoinitiators absorb uv light and start the polymerization. Powell is far from alone in using cycloaliphatic epoxy insulation. Cycloaliphatic compounds include cyclopropane, methylcyclohexane and heptalene.
Eponex resins are recommended as a building block resin for preparations of low viscosityhigher molecular weight epoxide resins and low viscosity esters using. Metal decoration coatings overprint varnishes information provided by dow. When cross linked or hardened with appropriate curing agents, very good mechanical, adhesive, dielectric. Coating crosslinking reactions using cycloaliphatic epoxides. The durable outdoor insulation systems offer high performance and reliability in tough climatic environments combined with the strength of traditional epoxy systems. Cycloaliphatic epoxy resins our araldite line of very low viscosity, difunctional cycloaliphatic epoxy resins are designed for epoxy formulators needing hightemperature resistance, good electrical insulation performance and uv resistance. Hydrophobic liquid modified cycloaliphatic epoxy resin diglycidylester. Aliphaticcycloaliphatic epoxy compounds acecs contain different epoxy groups in the molecule. The resulting epoxy resins contain no hydrolysable chlorine content, and the epoxide groups are integral to the cycloaliphatic ring. The products made from cycloaliphatic hydrocarbons have proven to play a role in highperformance coatings, composites and adhesive applications. Aliphatic cycloaliphatic epoxy compounds acecs contain different epoxy groups in the molecule. Eponex resins uvresistant cycloaliphatic epoxy resin hexion. Bisphenola benzoxazine and cycloaliphatic epoxy copolymer.
Cycloaliphatic amines and ethyleneamines may also be blended into polyetheramines in applications where a higher tg is needed to ensure good hardness at somewhat elevated. In most cases, the nucleophilicity of the amine dictates the reactivity with epoxy resins such that aliphatic aminescycloaliphatic aminesaromatic amines. Cycloaliphatic epoxy resins robert kultzow and stephanie foxhill. The use of epoxy coatings is prevalent in residential, commercial, institutional, industrial, transportation and marine applications. Catalysis of thermally curable high solids cycloaliphatic. Both use diglycidyl ether of bisphenola as the major component of the epoxide curing agent, and both contain benzyl alcohol, a volatile plasticizer which acts as a molecular lubricant and facilitates curing although systems with cycloaliphatic curing agents contain much more, typically 2030%, as they simply do not cure more than about half. Cycloaliphatic epoxide, cyracure uvr6107 cycloaliphatic epoxide is a low viscosity base resin. Tougher cycloaliphatic epoxide resins wells carter, keith lamb, and mark jupina, the dow chemical company, usa introduction cycloaliphatic epoxides are used in cationic uv coatings to provide good cure rate and hardness. Cycloaliphatic epoxy insulation, international symposium on modern insulator technologies, coral gables, florida, 1997. Product types are alpha cleavage, hydrogen abstraction, amine synergists and mixtures. Technical data sheet reissued september 2005 epon resin 828 product description epon resin 828 is an undiluted clear difunctional bisphenol aepichlorohydrin derived liquid epoxy resin.
Pdf in the cationic ringopening polymerization of cyclic ethers, three. Massen, worldwide outdoor experiences with cycloaliphatic epoxy insulators over 30 years, symposium on nonceramic insulator technology. Polyols are generallyused to improve coating flexibility and toughness. It exhibits good film hardness and film properties of good gloss. Synthesis of reactive diluents for cationic cycloaliphatic. The material has been in common use in europe for a generation, and other u. A liquid thermosetting epoxy resin composition comprising. Cycloaliphatic epoxy systems have been developed to meet and exceed the stringent re quirements of medium to high voltage outdoor applications. Huntsmans cycloaliphatic epoxy resins are designed for use in indoor and outdoor applications such as medium to highvoltage. The base monomer was a cycloaliphatic epoxide ecc for cationic uvcuring genomer 7210 from rahn, switzerland. Erl4221 is often used in manufacture of plastic embedding kits for electron microscopy.
Oct, 2000 the epoxide is added under high shear to the surfactantwater thickener mixture. Jun 01, 2006 cycloaliphatic amines, ethyleneamines e. All reactions involve nucleophilic attack at carbon and lead to opening of the ring. Very good chemical resistance and mechanical properties especially at heat cure temperature and good elevated temperature performance. Epoxyfunctional polymers, which can be used as macromonomers, are found in sections corresponding to the chemistryfunctionality of the polymer. Celloxide is daicel corporations tradename for their unique line of cycloaliphatic epoxy resins that are produced from the reaction of olefins with peracetic acid. Cycloaliphatic epoxide crosslinkable coreshell latexes. It is incompatible with amines, acids and strong bases and will cure to form a resinous product.
In most cases, the nucleophilicity of the amine dictates the reactivity with epoxy resins such that aliphatic amines cycloaliphatic aminesaromatic amines. This site is considered an extremely severe coastal installation. Cationic uv coatings frequently contain cycloaliphatic epoxides and polyols. Our unique portfolio appeals to formulators, chemists and scientists working in challenging markets who want to be at the forefront of innovation.
The structures of the teos functionalized polyols were characterized using ir, 1 hnmr, 29 sinmr, and esiftms spectroscopy. Cycloaliphatic epoxide resin erl4221 cas no 2386870. A related class is cycloaliphatic epoxy resin, which contains one or more cycloaliphatic rings in the molecule e. Photocuring and thermal postcuring of a cycloaliphatic epoxide. Ftiratr was used to monitor the competitive reactive processes and to quantify the evolution of the epoxide, lactone, and intermediate spiroorthoester groups. Daicel, celloxide 2021p, cycloaliphatic epoxy, cationic cure, 2386870. Additional epoxide monomers are listed in the crosslinking agents and additives for epoxides section. Dow cyracure uvr6110 cycloaliphatic epoxide datasheet. Epikure cycloaliphatic amines have long been standard curing agents for civil engineering, coating and composites applications, with new uses being found all the time.
Cycloaliphatic amines are another group of curing agents that are less volatile than linear aliphatic amines when adduct is formed. Synthesis and properties of a novel, liquid, trifunctional. It is especially interesting to see the first two of these c ompanies using cycloaliphatic epoxy. The resulting siloxane functionalized polyols were used to formulate.
Lowviscosity cycloaliphatic epoxy resin designed for casting, potting and vacuum. March 2011 packing epotec ydh 184 is packed and delivered in steel drums, 220 kg per drum as a standard pack. It is useful in many applications in which low viscosity is not required. New coreshell acrylic latexes designed for crosslinking with cycloaliphatic diepoxides were prepared. Aliphaticcycloaliphatic epoxy compounds and polymers. The resin should be stored in a dry place in its original closed packaging. Since amines are also catalysts for the epoxide reaction, this application must be considered as an emerging technology. Metal decoration coatings overprint varnishes flexible packaging. Hydroxyl terminated polybutadiene resins and derivatives.
Photoinitiated cationic polymerization of cycloaliphatic epoxide with siloxane or alkoxysilane functionalized polyol coatings article in european polymer journal 393. The curing was studied with differential scanning calorimetry dsc and fourier transform infrared in the attenuated. Mar 02, 2018 cycloaliphatic compounds include cyclopropane, methylcyclohexane and heptalene. It meets the requirements for use in military specification coatings.
A practical limitation when using polyols is that theconcentration of hydroxyl equivalents can not be more than about one half the concentration of epoxideequivalents. Reactive diluents for cationic cycloaliphatic epoxide uv coatings were synthesized using caprolactone polyols and tetraethyl orthosilicate teos. Composition containing cycloaliphatic epoxide, polyol. Tougher cycloaliphatic epoxide resins radtech europe. Bca c072 is a phenol free mannich base cycloaliphatic amine epoxy curing agent. Cycloaliphatic amines epochemie epoxy curing agents. Pdf curing properties of cycloaliphatic epoxy derivatives. Deta, teta, and tepa and unhindered polyetheramines may be blended with standard polyetheramines to increase their reactivity. Dow cyracure uvr6107 cycloaliphatic epoxide datasheet. Contaminated work clothing must not be allowed out of the workplace. This class also displays lower viscosity at room temperature, but offers significantly higher temperature resistance than the aliphatic epoxy diluents. These eponex reins are cycloaliphatic glycidyl ethers used to obtain epoxy performance in coatings, electronics and specialty composites where uv resistance is a requirement.
Daicel celloxide 2021p is a cycloaliphatic epoxy resin suitable for heat or cationic uv cure. For more than 60 years huntsman advanced materials, as a global partner and innovator, has produced and developed knowledgebased epoxy specialty components for highperformance industrial products. Dow cyracure uvr6128 cycloaliphatic epoxide datasheet. Polyols can be used in cationic coatings to improve coating flexibility and they help improve the throughcure rate. Cycloaliphatic epoxy resins robert kultzow and stephanie. Synthesis and characterization of imide ring and siloxane. Celloxide cycloaliphatic epoxy resins request quote. Cyracure uvr6107 cycloaliphatic epoxide is a low viscosity base resin. An example is the reaction of ethylene oxide with a grignard reagent discussed in section 15. There are different types of curing agents used for different performing characteristics of an epoxy coating.
Improved thermosets obtained from cycloaliphatic epoxy resins. The isothermal and nonisothermal cure kinetics of the benzoxazine and cycloaliphatic epoxy resin reaction was studied. Considering from these three factors, cycloaliphatic epoxides seem to be. Dow cyracure uvr6110 cycloaliphatic epoxide datasheet created date.
These additives can assist with adhesion or enhance the wetting. Mixtures with cycloaliphatic epoxy resin concentration greater than 25 wt. Photoinitiated cationic polymerization of cycloaliphatic. Cycloaliphatic epoxide resin undergoes rapid cationic polymerization and offers reduced shrinkage and improved adhesion. For further handling information, consult the dow brochure entitled, dow epoxy resins. Cycloaliphatic epoxy resin for enhanced uv resistance hexions cycloaliphatic epoxy resin eponex resin 1510 is useful in applications where improved outdoor resistance, as compared to standard bisphenol a or bisphenol f diglycidyl ether epoxies, is needed. The curing agents react with the epoxy resins and form a crosslinked network that converts the epoxy resin into a full fledged epoxy coating. Cycloaliphatic epoxy module environment tests 2 kure beach, north carolinalaque corrosion services inc. Epoxy resin are a class of thermoset materials used extensively in structural and specialty composite applications because they offer a unique combination of properties that are unattainable with other thermoset resins. Erl4221 is a cycloaliphatic, diepoxy functional organic compound that is a useful building block in the production of semihard to hard cured epoxy resins. Metal decoration coatings overprint varnishes flexible packaging laminating adhesive information provided by dow.
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