News Details
Use of various coatings crosslinking agent
2017-3-18 17:37:30
Use of various coatings crosslinking agent,Crosslinking agent by purpose can be divided into the normal temperature heating crosslinking agent and crosslinking agent. As mentioned earlier, when epoxy resin high temperature crosslinking general performance is good, but in coating and adhesive used in civil construction such as due to heating is difficult, need to normal temperature crosslinking; So mostly use fatty amine, alicyclic reflected and polyamide, etc., especially in winter using coating and adhesive had with isocyanate with more, or use a foul odour of ryukyu and alcohols.
As for medium temperature cross-linking agent and high temperature cross-linking agent, want to be the body of heat resistance and crosslinking of heat resistance, adhesion and drug resistance, etc. As a benchmark to choose. Select key for amine and acid anhydride. Due to the anhydride crosslink material has excellent electric properties, so it is widely used in electronics, electrical appliances.
Aliphatic polyamine crosslinking adhesion and alkali resistance, water resistance are good. Aromatic polyamines in drug resistance is also good. Because of amino nitrogen and metal forming hydrogen bond, thus has excellent antirust effect.
Amine mass concentration, the higher the better the rust. Anhydride crosslinking agent and epoxy ester bond, resistance to organic acid and inorganic acid showed high, performance in general, more than the polyamine.
Crosslinking agent is mainly used in polymer material (rubber and thermosetting resin). Because the molecular structure of the polymer materials as one long line, not crosslinked intensity at the low, easy to break, and there is no elastic, the effect of crosslinking agent is to produce chemical bonds between the molecules of the form, the linear molecules each other together, form a mesh structure, increase strength and flexibility of the rubber, rubber crosslinking agent is mainly used in the sulfur, in addition to promoter.
Crosslinking agent USES
1, a variety of thermoplastic plastic (polyethylene, polyvinyl chloride, chlorinated polyethylene, EVA, polystyrene, etc.) of crosslinking and modification. Thermal crosslinking generally add quantity for 1-3%, plus dicumyl peroxide (DCP) of 0.2-1%; Irradiation crosslinking adding amount of 0.5 to 2%, can no longer add DCP. After crosslinking can significantly improve the heat resistance and flame retardant, solvent resistance, mechanical strength and electrical, etc. It than single crosslinked by peroxide system to significantly improve the quality of products, and no peculiar smell. Typically used in polyethylene, polyethylene (PE)/chlorinated polyethylene, polyethylene/EVA crosslinking polyethylene cable and high and low foaming products.
2, ethylene propylene rubber, all kinds of fluorine rubber, CPE and other special rubber vulcanization (with DCP and use, general dosage is 0.5 to 4%), can significantly shorten curing time, improve the strength, abrasion resistance, solvent resistance and corrosion resistance.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
3 styrene, acrylic acid, crosslinking type ion exchange resin. It is no less than divinyl benzene crosslinking agent dosage, high quality, to the preparation of fouling resistance, strength, large pore size, heat, acid and alkali resistance, oxidation resistance and other excellent properties of ion exchange resin. This is a recently developed at home and abroad, prospect is very good new type of ion exchange resin.
4, polyacrylate, modification of poly (alkyl acrylate etc. Can significantly improve the thermal stability, optical properties and process performance, etc. Typical for ordinary heat resistant modification of organic glass.
5, epoxy resin, DAP (eps formate diallyl esters) modified resin. Can improve the heat resistance, adhesion, mechanical strength and dimensional stability. Typically used in epoxy potting compound and material modification.
6, unsaturated polyester and polyester thermoplastic crosslinking and modification. Can significantly improve the heat resistance, chemical corrosion resistance, dimensional stability, weathering resistance and mechanical properties, etc. Typically used to improve the thermal heat resistant unsaturated polyester glass fiber reinforced plastic products, using the temperature of the modified products can reach above 180 ℃.
7, metal heat resistance, radiation resistance, weatherability of protectant, TAIC prepolymer on the metal surface plating, the baking coating has very good heat resistance, radiation resistance, weather resistance and electrical insulation. Typical printed circuit board used in the manufacture of microelectronic products such as insulation.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
As for medium temperature cross-linking agent and high temperature cross-linking agent, want to be the body of heat resistance and crosslinking of heat resistance, adhesion and drug resistance, etc. As a benchmark to choose. Select key for amine and acid anhydride. Due to the anhydride crosslink material has excellent electric properties, so it is widely used in electronics, electrical appliances.
Aliphatic polyamine crosslinking adhesion and alkali resistance, water resistance are good. Aromatic polyamines in drug resistance is also good. Because of amino nitrogen and metal forming hydrogen bond, thus has excellent antirust effect.
Amine mass concentration, the higher the better the rust. Anhydride crosslinking agent and epoxy ester bond, resistance to organic acid and inorganic acid showed high, performance in general, more than the polyamine.
Crosslinking agent is mainly used in polymer material (rubber and thermosetting resin). Because the molecular structure of the polymer materials as one long line, not crosslinked intensity at the low, easy to break, and there is no elastic, the effect of crosslinking agent is to produce chemical bonds between the molecules of the form, the linear molecules each other together, form a mesh structure, increase strength and flexibility of the rubber, rubber crosslinking agent is mainly used in the sulfur, in addition to promoter.
Crosslinking agent USES
1, a variety of thermoplastic plastic (polyethylene, polyvinyl chloride, chlorinated polyethylene, EVA, polystyrene, etc.) of crosslinking and modification. Thermal crosslinking generally add quantity for 1-3%, plus dicumyl peroxide (DCP) of 0.2-1%; Irradiation crosslinking adding amount of 0.5 to 2%, can no longer add DCP. After crosslinking can significantly improve the heat resistance and flame retardant, solvent resistance, mechanical strength and electrical, etc. It than single crosslinked by peroxide system to significantly improve the quality of products, and no peculiar smell. Typically used in polyethylene, polyethylene (PE)/chlorinated polyethylene, polyethylene/EVA crosslinking polyethylene cable and high and low foaming products.
2, ethylene propylene rubber, all kinds of fluorine rubber, CPE and other special rubber vulcanization (with DCP and use, general dosage is 0.5 to 4%), can significantly shorten curing time, improve the strength, abrasion resistance, solvent resistance and corrosion resistance.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
3 styrene, acrylic acid, crosslinking type ion exchange resin. It is no less than divinyl benzene crosslinking agent dosage, high quality, to the preparation of fouling resistance, strength, large pore size, heat, acid and alkali resistance, oxidation resistance and other excellent properties of ion exchange resin. This is a recently developed at home and abroad, prospect is very good new type of ion exchange resin.
4, polyacrylate, modification of poly (alkyl acrylate etc. Can significantly improve the thermal stability, optical properties and process performance, etc. Typical for ordinary heat resistant modification of organic glass.
5, epoxy resin, DAP (eps formate diallyl esters) modified resin. Can improve the heat resistance, adhesion, mechanical strength and dimensional stability. Typically used in epoxy potting compound and material modification.
6, unsaturated polyester and polyester thermoplastic crosslinking and modification. Can significantly improve the heat resistance, chemical corrosion resistance, dimensional stability, weathering resistance and mechanical properties, etc. Typically used to improve the thermal heat resistant unsaturated polyester glass fiber reinforced plastic products, using the temperature of the modified products can reach above 180 ℃.
7, metal heat resistance, radiation resistance, weatherability of protectant, TAIC prepolymer on the metal surface plating, the baking coating has very good heat resistance, radiation resistance, weather resistance and electrical insulation. Typical printed circuit board used in the manufacture of microelectronic products such as insulation.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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