INFLUENCE OF ACTIVE DILUENT UP-624 ON PHYSICAL AND MECHANICAL PROPERTIES OF EPOXY COMPOUNDS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan, Kazan, Russian Federation
2.
Kazanskiy nacional'nyy issledovatel'skiy tehnologicheskiy universitet
3.
Kazanskiy nacional'nyy issledovatel'skiy tehnologicheskiy universitet
Type:
Article
Pages:
from 81
to 83
Status:
In work
Language:
Russian
Keywords:
DILUENT, EPOXY COMPOUND, MODIFICATION, PHYSICAL AND MECHANICAL PROPERTIES
Abstract (English):
Modification of components used in the creation of composite materials is an important direction in the development and production of new effective composites. The basic modifier of widespread epoxy compounds is a diluent, which contributes to a significant reduction in the viscosity of the binder, thereby improving processability and interaction at the matrix-filler interface. The main production of some active diluents, in particular of the UP type, has been lost as they were located in Ukraine. The emergence of alternative suppliers on the market opens the question of the use of active diluents of this type to replace the widely used DEG-1, which has a negative impact on the strength properties of epoxy-based binders. The paper presents the results of research of the influence of active diluent of UP-624 type on physical and mechanical characteristics of epoxy compounds on the example of model system: epoxy resin of ED-20 grade - polyethylene polyamine (PEPA) taken in the ratio of 10 to 1. It is established that unlike the widely used active diluent of DEG-1 brand, the considered UP-624 as a result of incorporation into the structure of the binder increases its density, which is reflected in the increase of elastic modulus by 35% and leads to an increase in tensile strength by 4 times compared to the original sample. In addition, modification of epoxy compound with active diluent of UP-624 grade allows increasing its adhesive strength by 12% for every 5% of the additive. Dependences describing the influence of the concentration of active diluent of UP-624 brand on the physical and mechanical characteristics of epoxy compound have been obtained, which will allow predicting the behaviour of newly created and existing compositions.
Modification of components used in the creation of composite materials is an important direction in the development and production of new effective composites. The basic modifier of widespread epoxy compounds is a diluent, which contributes to a significant reduction in the viscosity of the binder, thereby improving processability and interaction at the matrix-filler interface. The main production of some active diluents, in particular of the UP type, has been lost as they were located in Ukraine. The emergence of alternative suppliers on the market opens the question of the use of active diluents of this type to replace the widely used DEG-1, which has a negative impact on the strength properties of epoxy-based binders. The paper presents the results of research of the influence of active diluent of UP-624 type on physical and mechanical characteristics of epoxy compounds on the example of model system: epoxy resin of ED-20 grade - polyethylene polyamine (PEPA) taken in the ratio of 10 to 1. It is established that unlike the widely used active diluent of DEG-1 brand, the considered UP-624 as a result of incorporation into the structure of the binder increases its density, which is reflected in the increase of elastic modulus by 35% and leads to an increase in tensile strength by 4 times compared to the original sample. In addition, modification of epoxy compound with active diluent of UP-624 grade allows increasing its adhesive strength by 12% for every 5% of the additive. Dependences describing the influence of the concentration of active diluent of UP-624 brand on the physical and mechanical characteristics of epoxy compound have been obtained, which will allow predicting the behaviour of newly created and existing compositions.
Keywords:
DILUENT, EPOXY COMPOUND, MODIFICATION, PHYSICAL AND MECHANICAL PROPERTIES
DILUENT, EPOXY COMPOUND, MODIFICATION, PHYSICAL AND MECHANICAL PROPERTIES
