News Details
Oxazoline class coating crosslinking agent
2017-4-18 16:58:11
Oxazoline class coating crosslinking agent, the crosslinking agent representative varieties with 1, 3 or 1, 4 - phenylene 2 oxazoline mouth [1, 3 or 1, 4 - phenylenebisoxazoline]
Fang sex second oxazoline (hereinafter referred to as PBOX), in the liquid coating is widely used as crosslinking agent together. Under the influence of nucleophilic and electrophilic reagent mouth oxazoline ring can occur under the 150 ? open-loop and bonus. Main attack nucleophilic reagent and O connected with electricity is 4 - a C atom, the electrophilic reagent is main attack of a 2 - a naked N atoms.
Can use it to the properties of PBOX and polyester resin, acid anhydride and epoxy resin, phenolic resin, phenolic reactions such as crosslinking agent, constitute a kind of coating systems with quick crosslinking performance. PBOX and containing carboxyl polyester resin addition reaction generated ester amide crosslinking structure.
Reaction without byproduct released. Ester amide structure there are no strong H bond, thus provides the flow of low viscosity and high performance. Has been found that using PBOX as crosslinking agent preparation of polyester powder coatings revealed a good flow property, excellent chemical resistance, high resistance to scratches and mechanical properties; In addition to excellent storage stability and color retention and excellent weather resistance.
Polyester resin is unsaturated polyester adhesive. Unsaturated polyester adhesive is mainly composed of unsaturated polyester resin, initiator, promoting agent, filler, thixotropic agent, etc. Main chain contains - CH = CH - double bond of a linear structure (see the linear polymer) polyester resin, with alkene monomers, such as styrene, acrylate and vinyl acetate mixture, under the action of initiator and accelerator, interesting aggregated into insoluble, does not melt under product. The abbreviation of unsaturated polyester is UP. Mainly for the production of coil coatings.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Polyester resin by glycol dibasic acid or pluralistic alcohol and acid condensation of the floorboard of the polymer.
Polyester resins are divided into saturated polyester resin and unsaturated polyester resin. Unsaturated polyester adhesive is mainly composed of unsaturated polyester resin, fillers, initiator and other additives. Adhesive wet, good in usability, low viscosity, curing rubber hardness, good transparency, high brightness, ambient pressure, fast curing, has good heat resistance, excellent electric properties. The disadvantage is that large shrinkage rate, adhesive toughness is not high, the chemical media resistance and poor water resistance, used for the structural adhesive. Mainly used for adhesive glass fiber reinforced plastic, hard plastic, concrete, electric tank sealing etc.
Polyester resin and alkyd resin distinction lies in the synthesis of polyester resin raw materials do not contain vegetable oil or oil mainly composition of fatty acids. Polyester can be divided into saturated polyester and unsaturated polyester. Saturated polyester refers to synthetic raw materials do not contain in addition to the benzene ring of unsaturated bond.
Synthesis of unsaturated polyester resin raw materials mainly glycol, dibasic acid and ternary alcohol, alcohol or an individual and a yuan yuan acid. Is the most commonly used alcohol neopentyl glycol, the water resistance of the esterification material is greatly better than that of ethylene glycol and propylene glycol. The ternary alcohol mainly trimethylolpropane, three hydroxyethyl ethane.
Is the most commonly used aromatic dibasic acid, isophthalic acid, as a result of isophthalic acid salt fog resistance, chemical resistance and water resistance near phthalate is superior, so isophthalic acid was more prevalent in the application of polyester resin. Also used in synthetic polyester resin aliphatic dibasic acid, such as adipic acid, azelaic acid and sebacic acid, adipic acid application is more common. Most of the resin are dibasic acid and aliphatic dibasic acid containing aromatic compounds, aromatic dibasic acid and aliphatic dibasic acid mole ratio is the main factor controlling resin Tg.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Fang sex second oxazoline (hereinafter referred to as PBOX), in the liquid coating is widely used as crosslinking agent together. Under the influence of nucleophilic and electrophilic reagent mouth oxazoline ring can occur under the 150 ? open-loop and bonus. Main attack nucleophilic reagent and O connected with electricity is 4 - a C atom, the electrophilic reagent is main attack of a 2 - a naked N atoms.
Can use it to the properties of PBOX and polyester resin, acid anhydride and epoxy resin, phenolic resin, phenolic reactions such as crosslinking agent, constitute a kind of coating systems with quick crosslinking performance. PBOX and containing carboxyl polyester resin addition reaction generated ester amide crosslinking structure.
Reaction without byproduct released. Ester amide structure there are no strong H bond, thus provides the flow of low viscosity and high performance. Has been found that using PBOX as crosslinking agent preparation of polyester powder coatings revealed a good flow property, excellent chemical resistance, high resistance to scratches and mechanical properties; In addition to excellent storage stability and color retention and excellent weather resistance.
Polyester resin is unsaturated polyester adhesive. Unsaturated polyester adhesive is mainly composed of unsaturated polyester resin, initiator, promoting agent, filler, thixotropic agent, etc. Main chain contains - CH = CH - double bond of a linear structure (see the linear polymer) polyester resin, with alkene monomers, such as styrene, acrylate and vinyl acetate mixture, under the action of initiator and accelerator, interesting aggregated into insoluble, does not melt under product. The abbreviation of unsaturated polyester is UP. Mainly for the production of coil coatings.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Uses:
The product is identical to Ethancure 100 and Lonza DETDA 80, DETDA is very effective polyurethane elastomer chain extender; also be used as polyurethane and epoxy resin curing agent, epoxy resin of an antioxidant, industrial oils and lubricants . In addition, also as intermediates in organic synthesis.Especially for the RIM (reaction injection molding), is important in the field of spray polyurea chain extender species. Also can be used for casting polyurethane elastomer (CPU) and a curing agent, epoxy curing agent, epoxy resin of antioxidants, lubricants and industrial oils other antioxidants.
Polyester resin by glycol dibasic acid or pluralistic alcohol and acid condensation of the floorboard of the polymer.
Polyester resins are divided into saturated polyester resin and unsaturated polyester resin. Unsaturated polyester adhesive is mainly composed of unsaturated polyester resin, fillers, initiator and other additives. Adhesive wet, good in usability, low viscosity, curing rubber hardness, good transparency, high brightness, ambient pressure, fast curing, has good heat resistance, excellent electric properties. The disadvantage is that large shrinkage rate, adhesive toughness is not high, the chemical media resistance and poor water resistance, used for the structural adhesive. Mainly used for adhesive glass fiber reinforced plastic, hard plastic, concrete, electric tank sealing etc.
Polyester resin and alkyd resin distinction lies in the synthesis of polyester resin raw materials do not contain vegetable oil or oil mainly composition of fatty acids. Polyester can be divided into saturated polyester and unsaturated polyester. Saturated polyester refers to synthetic raw materials do not contain in addition to the benzene ring of unsaturated bond.
Synthesis of unsaturated polyester resin raw materials mainly glycol, dibasic acid and ternary alcohol, alcohol or an individual and a yuan yuan acid. Is the most commonly used alcohol neopentyl glycol, the water resistance of the esterification material is greatly better than that of ethylene glycol and propylene glycol. The ternary alcohol mainly trimethylolpropane, three hydroxyethyl ethane.
Is the most commonly used aromatic dibasic acid, isophthalic acid, as a result of isophthalic acid salt fog resistance, chemical resistance and water resistance near phthalate is superior, so isophthalic acid was more prevalent in the application of polyester resin. Also used in synthetic polyester resin aliphatic dibasic acid, such as adipic acid, azelaic acid and sebacic acid, adipic acid application is more common. Most of the resin are dibasic acid and aliphatic dibasic acid containing aromatic compounds, aromatic dibasic acid and aliphatic dibasic acid mole ratio is the main factor controlling resin Tg.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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