The Effect of an Active Diluent on the Properties of Epoxy Resin and Unidirectional Carbon-Fiber-Reinforced Plastics

The effect of a renewable fatty acid derivatives based epoxy diluent on the curing kinetics and thermal properties of epoxy/anhydride systems

“…Non-reactive and reactive diluents are also used to make up for this deficiency while reducing viscosity and increasing wetting action of these systems. The reactive diluents, such as diglycidyl ether of triethylene glycol (DGETEG) [8], poly(propylene glycol)diglycidyl ether (PPGDGE) [9] and diglycidyl ether of diethylene glycol (DGEG) [10], are involved in the crosslinking network, which has less influence on the integrated performance of epoxy resins than other additives [11,12].…”

Yellow resistant photosensitive resin for digital light processing 3D printing

“…The curing of photosensitive resin is essentially that the photoinitiator causes the resin to polymerize from small molecules into polymers, and the changes of molecular bond and temperature during the polymerization will cause the sample to shrink. 17,19 Figure 7 compares the effects of different proportions of active diluents on shrinkage in PUH 2 . HEMA/HPMA was mixed in same proportions to form active diluents.…”

Structure and Properties of Epoxy Polysulfone Systems Modified with an Active Diluent

“…Typically, the G IC energy value for epoxy matrices based on diglycidyl ether bisphenol A (DGEBA) is 0.1–0.4 kJ/m 2 [ 1 ], and for carbon fiber-reinforced plastics is 0.3–0.5 kJ/m 2 [ 2 , 3 , 4 ]. The crack resistance of matrices and reinforced plastics based on them can be increased by introducing modifiers of various nature: mineral or carbon particles [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ], rubbers [ 11 , 12 , 13 , 14 , 15 ], active diluents, reactive copolymers [ 16 , 17 , 18 , 19 ], or thermoplastic modifiers [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. The effect of introducing modifiers depends on their nature and structures, which are formed in the process of matrix formation.…”

“…The re-active modifier oligomers are incorporated into the polyepoxide network, thereby increasing its elasticity. This leads to a significant decrease in the glass transition temperature, and as a result, to a reduction in the use areas of such systems [ 16 , 17 , 18 , 19 ]. The most effective way to increase the crack resistance of epoxy matrices is the introduction of heat-resistant thermoplastics [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”