News Details
Phenolic epoxy resin paint crosslinking agent
2017-7-7 23:44:10
Phenolic epoxy resin paint crosslinking agent
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
The phenolic epoxy resin crosslinking agent PCD was synthesized by polymerization of cashew phenol, formaldehyde and diethylene triamine.
Experimental results showed that phenolic epoxy crosslinking agent between PCD and a variety of epoxy resin (E - 44, E - 35, F - 44) has good compatibility, crosslinking system after the tensile strength of 43.52 MPa, the compression strength of 85.09 MPa, 8.9% elongation at break, heat deformation temperature of 125 ℃, 2 h hardness.
Improved the crosslinking system hydrophobic, reduces the surface tension of the crosslinking system, increase the crosslinking system was coated on the surface of the liquid and permeability, and PCD and excellent resistance to chemical media performance. Therefore, the development of phenolic epoxy resin crosslinking agent PCD is a good cross-linking agent.
MohamedMEissa successfully synthesized with amino for termination of the hyperbranched polymer (Poly real (PEODA - NPA)] (HP), by polyethylene glycol acrylate (PEODA) and N - methyl - 1, 3 - propylene amide (NPA) through addition reaction.
When there is a modification of OMMT montmorillonite, HP as toughening agent and crosslinking agent to increase toughness of epoxy resin (Epon - 828) had significantly improved, and does not affect the other performance of epoxy resin after crosslinking. When the addition of OMMT is 1% (wt, quality score), the thermal stability of the cross-linking system also increases significantly.
Aromatic amine GeetaDurga crosslinking agent and so on many kinds of aromatic amine was synthesized by crosslinking agent, (see the structured type 9), the compound is made up of L - phenylalanine (PA), respectively, and 1, 4 - phenylenediamine (PD), 1, 5 - diamine naphthalene (N), 4, 4 '- (9 - the fluorene) - double aniline (F), 4, 4' - biphenyl diamine sulfide (DS), 3, 4 '- diamino diphenyl ether (O) reaction was prepared by the 1:1.
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
They will these crosslinking agent used in TGPO and DGEBA press 2:3 hybrid phosphorous epoxy resin, the thermal degradation temperature of the thermosetting material obtained in 259 ℃ ~ 322 ℃, shows the good thermal stability. The system with PDPA is the highest initial decomposition temperature, the initiation of heat and the final decomposition temperature.
The system with SPA as cross-linking agent showed the highest activation energy of 58.2 kJ/mol. The NPA as crosslinking agent system shows the highest rate of carbon residue (under 800 ℃ carbon residue rate 45.5%), the LOI value of 35.7, show the good flame retardant properties.
CuoQing synthesis such as a series of aromatic amine crosslinking agent LCECAn (structured as shown in figure 10), is made up of 4, 4 '- biphenyl and n (n = 2 minus 2) methylene units, can be used for crosslinking type E - 51 epoxy resin and 4, 4' - 2 (2, 3 - epoxypropyl oxygen radicals) biphenyl (LCE).
With E - 51 / LCECAn and LCE/LCECAn (n = 2 minus 2) crosslinking system, with the increase of methylene unit number, the two system of crosslinking temperature have little impact, but the activation energy of two system were increased, the activation energy E - 51 / LCECAn system from a 58 kj/mol, 67 kj/mol, LCE/LCECAn (n = 2 minus 2) system of activation energy from a 76 kj/mol, 76 kj/mol, and crosslinking of Tg and thermal stability were both with the increase of the number of methylene units.
MaityT etc with aniline and chloro aniline were synthesized by the reaction with formaldehyde under acid condition aniline formaldehyde crosslinking agent (AFAFC) and chloro aniline formaldehyde crosslinking agent (AFCFC).
The results showed that the two crosslinking agents had higher activity of DEG - BA. AFAFC of activation energy and rate constant and Tg were higher than AFCFC, AFAFC epoxy crosslinking content also has high hardness, the two kinds of crosslinker crosslinked epoxy resin, the thermal stability of temperature in 230 ~ 240 ℃.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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