Preparation and Properties of Cerium Oxide Doped Phenolic Resin Composites
Source abstract
Abstract
ABSTRACT In this study, different portions of nano‐ceria (CeO 2 ) were used to fill modified phenolic resin (PF) to prepare a phenolic resin casting body. Differential scanning calorimetry (DSC) was used to determine the characteristic temperature of phenolic resin curing, establish the kinetic equation of the resin curing reaction, and investigate the effect of CeO 2 nanoparticles on the curing process of phenolic resin. The casting body was tested for density, mechanical properties, heat resistance, and ablation properties. The results show that the density of the PF casting body reaches a highest value of 1.30 g/cm 3 when 5phr CeO 2 is added. CeO 2 particles can reduce the activation energy of the resin reaction, accelerate the curing rate, and at the same time improve the mechanical properties of the casting body. Among them, the PF with 1phr CeO 2 has the highest toughness while improving the tensile strength and elongation at break. The heat resistance of the resin was the highest when 5phr CeO 2 was added, and the residual carbon rate under N 2 atmosphere at 800°C reached 63.08%, which was about 10% higher than that of unfilled PF. The PF with the addition of 1phr CeO 2 had the lowest line ablation rate of 0.0942 mm/s (< 0.1 mm/s).
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Thermal and Kinetic Analysis · Silicone and Siloxane Chemistry · Catalysis and Oxidation Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemical Engineering Inner Mongolia University of Technology Hohhot China
Institute of Process Engineering, Chinese Academy of Sciences Beijing China
Funding
Natural Science Foundation of Inner Mongolia Autonomous Region
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