News Details
Modified fatty cyclic amine epoxy coatings crosslinking agent
2017-7-18 12:29:16
Modified fatty cyclic amine epoxy coatings crosslinking agent has a great influence on the performance of epoxy resin, this paper synthesized a kind of modified alicyclic amine epoxy crosslinking agent, this paper discusses the synthetic process conditions and modified alicyclic amine epoxy crosslinking agent performance relationship. The synthetic crosslinking agent is used for the construction of epoxy resin construction glue, the comprehensive performance of adhesives is good, it meets GB50367) 20065 concrete structure reinforced design specification 6 for structural glue requirement.
As an important application field of epoxy resin))) building structural adhesive, related national standards for the performance of epoxy resin adhesive put forward higher requirements, and many indicators are mandatory.
This paper synthesized a kind of modified alicyclic amine epoxy crosslinking agent, used in building structural adhesive, comprehensive performance is good, can completely meet the mandatory national standard GB50367) 20065 reinforced concrete structure design code 6 requirements for structural adhesive.
Main raw materials and equipment. Aliphatic polyamine, industrial products; Acrylonitrile, industrial products; Bisphenol A liquid epoxy resin; Epoxy resin toughening agent, self - control; Inorganic packing, industrial products; Auxiliaries, industrial products; Universal material testing machine; Humidity and heat aging test box.
Crosslinking agent synthesis. Into three flask in measurement of alicyclic amine, start stirring, normal temperature drop and acrylonitrile, continue to add after warming response, regularly test the reaction liquid amine value, until the amine value stability, cooling discharging.
Preparation and performance testing of adhesive. The toughening agent, filler and auxiliary agent were added to the epoxy resin to mix well, and the group of the adhesive was obtained. Add fillers and auxiliaries to the synthesized crosslinking agent and mix well. The group a is divided into a certain mass ratio gel.
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
As an important application field of epoxy resin))) building structural adhesive, related national standards for the performance of epoxy resin adhesive put forward higher requirements, and many indicators are mandatory.
This paper synthesized a kind of modified alicyclic amine epoxy crosslinking agent, used in building structural adhesive, comprehensive performance is good, can completely meet the mandatory national standard GB50367) 20065 reinforced concrete structure design code 6 requirements for structural adhesive.
Main raw materials and equipment. Aliphatic polyamine, industrial products; Acrylonitrile, industrial products; Bisphenol A liquid epoxy resin; Epoxy resin toughening agent, self - control; Inorganic packing, industrial products; Auxiliaries, industrial products; Universal material testing machine; Humidity and heat aging test box.
Crosslinking agent synthesis. Into three flask in measurement of alicyclic amine, start stirring, normal temperature drop and acrylonitrile, continue to add after warming response, regularly test the reaction liquid amine value, until the amine value stability, cooling discharging.
Preparation and performance testing of adhesive. The toughening agent, filler and auxiliary agent were added to the epoxy resin to mix well, and the group of the adhesive was obtained. Add fillers and auxiliaries to the synthesized crosslinking agent and mix well. The group a is divided into a certain mass ratio gel.
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
To test the viscosity of crosslinking agent in 1995 by GB/T2794; The antifreeze of crosslinking agent was tested in the environment of 4e and -16e respectively. The application period of test adhesives in 2002 is referred to as GB/T7123.1. The shear strength of the adhesive was tested in 1986 by GB/T7124. The tensile strength of the butt joint of the adhesive in 1996 was tested with reference to GB/T6329. In 1995, GB/T2568) 1995, GB/T2569) the body performance of the adhesive was tested in 1995.
The cyanoethylation of fatty cycline. As the crosslinking agent in the construction of structural glue, it has the following drawbacks: 1 is easily salted with carbon dioxide in air, or absorbs moisture in the air. O normal temperature is not complete with epoxy resin. ? High crystallization temperature and cold resistance.
However, due to the high degree of stiffness and good stability of the lipid ring (pentacyclic ring) in the molecular structure, the properties of epoxy resin are excellent. Using acrylonitrile modified lipid cyclamine (lipocycline in this paper), the aim is to overcome the above shortcomings and retain the advantages while introducing a good adhesive property.
The reaction of amines and acrylonitrile, called the cyanoethylation reaction, or Michael's reaction (m-ichaelreaction), is shown as follows: H2N) NH2 + CH2 = CHCNvH2N) R) NHCH2CH2CN type R for the five-membered ring. The reaction mechanism is the reactive hydrophilic addition reaction of the reactive hydrogen and acrylonitrile and B unsaturated double bonds.
Reaction temperature and time. The addition of lipid cyclamine and acrylonitrile is a strong exothermic reaction to control the temperature of the droplet acceleration and reaction fluid of the acrylonitrile. The temperature at the drop of acrylonitrile should be controlled below 30e, and after the drop of acrylonitrile, the reaction will be heated up to 70-80e for a period of time. The ratio of the reaction temperature (75e) and the reactant material is 1B1.
When the reaction reaches about 4h, the amine value of the reactive liquid has stabilized and the reaction has been basically completed. The amount of the reactant material and the non-modified lipid of the antifreeze properties of the reactant were crystallized into solid state at about 10e, and the antifreeze performance was improved after the cyanide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
To test the viscosity of crosslinking agent in 1995 by GB/T2794; The antifreeze of crosslinking agent was tested in the environment of 4e and -16e respectively. The application period of test adhesives in 2002 is referred to as GB/T7123.1. The shear strength of the adhesive was tested in 1986 by GB/T7124. The tensile strength of the butt joint of the adhesive in 1996 was tested with reference to GB/T6329. In 1995, GB/T2568) 1995, GB/T2569) the body performance of the adhesive was tested in 1995.
The cyanoethylation of fatty cycline. As the crosslinking agent in the construction of structural glue, it has the following drawbacks: 1 is easily salted with carbon dioxide in air, or absorbs moisture in the air. O normal temperature is not complete with epoxy resin. ? High crystallization temperature and cold resistance.
However, due to the high degree of stiffness and good stability of the lipid ring (pentacyclic ring) in the molecular structure, the properties of epoxy resin are excellent. Using acrylonitrile modified lipid cyclamine (lipocycline in this paper), the aim is to overcome the above shortcomings and retain the advantages while introducing a good adhesive property.
The reaction of amines and acrylonitrile, called the cyanoethylation reaction, or Michael's reaction (m-ichaelreaction), is shown as follows: H2N) NH2 + CH2 = CHCNvH2N) R) NHCH2CH2CN type R for the five-membered ring. The reaction mechanism is the reactive hydrophilic addition reaction of the reactive hydrogen and acrylonitrile and B unsaturated double bonds.
Reaction temperature and time. The addition of lipid cyclamine and acrylonitrile is a strong exothermic reaction to control the temperature of the droplet acceleration and reaction fluid of the acrylonitrile. The temperature at the drop of acrylonitrile should be controlled below 30e, and after the drop of acrylonitrile, the reaction will be heated up to 70-80e for a period of time. The ratio of the reaction temperature (75e) and the reactant material is 1B1.
When the reaction reaches about 4h, the amine value of the reactive liquid has stabilized and the reaction has been basically completed. The amount of the reactant material and the non-modified lipid of the antifreeze properties of the reactant were crystallized into solid state at about 10e, and the antifreeze performance was improved after the cyanide.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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