News Details
Methyl glycidyl ester of acrylic (GMA) crosslinking agent
2017-4-21 15:38:44
Methyl glycidyl ester of acrylic (GMA) crosslinking agent is GMA300 methyl glycidyl ester of acrylic polymer. Mainly refers to by the following monomer GMA resin as the main functional units. This is TGIC appropriate substitute.
Compared with AralditePT910, methyl glycidyl ester of acrylic (GMA) crosslinking agent does not need to be specially designed polyester, can use for the design of conventional polyester TGIC, acid value is the most suitable for 22-26 mgkoh/g polyester.
Official degree of methyl glycidyl ester of acrylic (GMA) crosslinking agent has far more quickly than the TGIC crosslinking speed, reaction will lead to the rapid rise of viscosity and flow on the surface of the square problem; In addition GMA resin easy phase separation with the formula of polyester resin, the compatibility is bad, lead to pigment wetting performance deterioration of the coating is used flowers; If you can't effectively improve dispersion of its mechanical properties is poor. In some conditions the system can produce pollution and the existing coating systems.
GMA300 compared with those of TGIC system of epoxy equivalent of about 300, such a high dosage of GMA hybrid powder coating resin as cross-linking agent, general is 16/84 weight portions, and therefore is not economic. Using GMA300 as crosslinking agent of coatings in the field of outdoor durability and fairly TGlC powder. But the coating hardness is lower than TGIC system.
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.
Methyl acrylic glycidyl ester is a kind of chemical formula is C7H10O3.
English alias: 2, 3 - Epoxypropyl methacrylate; Methacrylic acid glycidyl ester; Oxiran - 2 - methylprop - 2-2 - ylmethyl enoate; (2 s) - oxiran - 2 - methylprop - 2-2 - ylmethyl enoate; (2 r) - oxiran - 2 - methylprop - 2-2 - ylmethyl enoate
Because of GMA molecules have lively vinyl and ionic reaction of epoxy group two functional groups, aggregation, in functional groups can react with ionic polymerization.
So, can be used in ethylene polymer type and condensation polymer modification, GMA can step in polymerization in three ways, one is the ethylene polymerization, the epoxy group on the branched chain, namely "O" type polymer; Secondly, epoxy ring opening, make the vinyl on the branched chain, namely "V" type polymer; A third is active hydrogen compounds react with GMA, open loop on the epoxy group into a chain. Using any one of the above three ways, at the time of polymerization, polymer modification. In terms of coating, because of the addition of GMA, can improve the coating hardness, gloss, adhesion and weather resistance, etc., can be used in acrylic paint, acrylic paint, alkyd resin coating, vinyl chloride resin as well as some water-based paint.
When used for bonding agent and non-woven fabric, also used in acrylic emulsion, can improve the metal, glass, cement, and polyvinyl fluoride stick relay; Used in synthetic rubber latex non-woven fabric, in does not affect the feel, improve the washing resistance. When used in synthetic resin material processing, can improve the injection molding, extrusion molding, and greatly improve the resin and metal stick relay. Used in synthetic fibre, the dyeing poor fiber, can improve its tinting strength, and improve the color fastness, improve the ability of anti-wrinkle, preshrunk. This product can improve the sensitivity of photosensitive resin, resolution, and corrosion resistance.
Methyl methacrylate with alkali metal hydroxide in low molecular and high boiling point solvents, reaction in the presence of inhibitor, generated (meth) acrylic acid alkali metal salt, dry to remove volatiles, such as water and low molecular alcohol to join epichlorohydrin (ECH) and phase transfer catalyst, esterification reaction, get the crude ester containing glycidyl ester of acrylic (methyl) products.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Compared with AralditePT910, methyl glycidyl ester of acrylic (GMA) crosslinking agent does not need to be specially designed polyester, can use for the design of conventional polyester TGIC, acid value is the most suitable for 22-26 mgkoh/g polyester.
Official degree of methyl glycidyl ester of acrylic (GMA) crosslinking agent has far more quickly than the TGIC crosslinking speed, reaction will lead to the rapid rise of viscosity and flow on the surface of the square problem; In addition GMA resin easy phase separation with the formula of polyester resin, the compatibility is bad, lead to pigment wetting performance deterioration of the coating is used flowers; If you can't effectively improve dispersion of its mechanical properties is poor. In some conditions the system can produce pollution and the existing coating systems.
GMA300 compared with those of TGIC system of epoxy equivalent of about 300, such a high dosage of GMA hybrid powder coating resin as cross-linking agent, general is 16/84 weight portions, and therefore is not economic. Using GMA300 as crosslinking agent of coatings in the field of outdoor durability and fairly TGlC powder. But the coating hardness is lower than TGIC system.
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.
Methyl acrylic glycidyl ester is a kind of chemical formula is C7H10O3.
English alias: 2, 3 - Epoxypropyl methacrylate; Methacrylic acid glycidyl ester; Oxiran - 2 - methylprop - 2-2 - ylmethyl enoate; (2 s) - oxiran - 2 - methylprop - 2-2 - ylmethyl enoate; (2 r) - oxiran - 2 - methylprop - 2-2 - ylmethyl enoate
Because of GMA molecules have lively vinyl and ionic reaction of epoxy group two functional groups, aggregation, in functional groups can react with ionic polymerization.
So, can be used in ethylene polymer type and condensation polymer modification, GMA can step in polymerization in three ways, one is the ethylene polymerization, the epoxy group on the branched chain, namely "O" type polymer; Secondly, epoxy ring opening, make the vinyl on the branched chain, namely "V" type polymer; A third is active hydrogen compounds react with GMA, open loop on the epoxy group into a chain. Using any one of the above three ways, at the time of polymerization, polymer modification. In terms of coating, because of the addition of GMA, can improve the coating hardness, gloss, adhesion and weather resistance, etc., can be used in acrylic paint, acrylic paint, alkyd resin coating, vinyl chloride resin as well as some water-based paint.
When used for bonding agent and non-woven fabric, also used in acrylic emulsion, can improve the metal, glass, cement, and polyvinyl fluoride stick relay; Used in synthetic rubber latex non-woven fabric, in does not affect the feel, improve the washing resistance. When used in synthetic resin material processing, can improve the injection molding, extrusion molding, and greatly improve the resin and metal stick relay. Used in synthetic fibre, the dyeing poor fiber, can improve its tinting strength, and improve the color fastness, improve the ability of anti-wrinkle, preshrunk. This product can improve the sensitivity of photosensitive resin, resolution, and corrosion resistance.
Methyl methacrylate with alkali metal hydroxide in low molecular and high boiling point solvents, reaction in the presence of inhibitor, generated (meth) acrylic acid alkali metal salt, dry to remove volatiles, such as water and low molecular alcohol to join epichlorohydrin (ECH) and phase transfer catalyst, esterification reaction, get the crude ester containing glycidyl ester of acrylic (methyl) products.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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