The mechanical properties of epoxy resin composites modified by compound modification
Source abstract
Abstract
The composite modification is a method of modifying the surface of ultra high molecular weight polyethylene (UHMWPE) fabric through the surface grafting, at the same time the epoxy resin through ultrasonic and 3- amino propyl triethoxy silane (KH550), and then using the vacuum assisted resin transfer molding (VARTM) process to prepare the composite. Explore the improvement of the interface between fiber and resin so as to optimize the mechanical properties of the material. The modification effect, the mechanism of action and the effect of different KH550 contents on the properties of the composite were studied. Compared with the unmodified sample, When 1wt% KH550, the maximum tensile load, tensile strength and the tensile fracture length increased by 13.83%, 20.19% and 51.27%, respectively, and the tensile modulus was reduced by 29.74%. The maximum bending stress and bending modulus of the 1wt% KH550 sample were increased by 104.57% and 190.97%, respectively. The displacement, which is related to the maximum loading, the pressure and the tension area of the resin decreased by 7.81%. The KH550 content had a substantial influence on the thermal decomposition temperature of UHMWPE, and it had a small effect on the epoxy resin. A KH550 content of 1wt% strengthened the bonds between the fibre and the resin, such that the main failure mode of the pressure area was the hickies, and the tension areas contained hickies and cracks.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Epoxy Resin Curing Processes · Fiber-reinforced polymer composites · Mechanical Behavior of Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Textile, Tianjin Polytechnic University 1 , Tianjin 300387, China
Key Laboratory of Advanced Textile Composites, Ministry of Education, Tianjin Polytechnic University 2 , Tianjin 300387, China
Funding
National Natural Science Foundation of China
References (32)
Show source-provided references
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