Preparation of vanadium-modified phenolic resin/modified zirconia composites and its applied properties in cubic boron nitride (cBN) grinding wheels

Abstract

In this work, novolac bisphenol‐F‐based vanadium–phenolic resin/modified zirconia (Bis‐VPF/m‐ZrO) composites were obtained successfully. In the preparation process, ammonium vanadate reacted with Bis‐PF resin to form Bis‐VPF resin with the VO chemical bonds. Simultaneously, zirconia (ZrO2) was modified with N‐(2‐aminoethyl‐3‐aminopropyl)trimethoxysilane (AEAPTMS). Then, this modified zirconia (m‐ZrO) was fully mixed with Bis‐VPF to form Bis‐VPF/m‐ZrO composites. The thermal properties and mechanical strength of Bis‐VPF are higher than those of Bis‐PF. When the m‐ZrO was additionally incorporated into Bis‐VPF, the well‐dispersed and well‐adhered m‐ZrO can further promote all the above‐mentioned properties of the composites. Furthermore, Bis‐VPF/m‐ZrO was compared with Bis‐PF in the performance as a binder for cBN grinding wheels. The results of grinding experiments indicated that Bis‐VPF/m‐ZrO is a better binding resin than Bis‐PF, and so the grinding wheels made from the Bis‐VPF/m‐ZrO composites have better grinding effect and quality. POLYM. COMPOS., 37:3354–3364, 2016. © 2015 Society of Plastics Engineers

Effect of Heat Treatment under Different Atmospheres on the Bonding Properties and Mechanism of Ceramiziable Heat-Resistant Adhesive

“…Phenolic resin is a type of polymer compound formed by the condensation of phenolic compounds and aldehydes through acid or alkali catalysis [ 15 , 16 ]. Under inert atmospheres, it exhibits excellent resistance to combustion and high-temperature carbon residue, while also demonstrating good adhesive properties.…”

Study on the Preparation and Performance of Silicone-Modified Phenolic Resin Binder for Rail Grinding Wheels

“…However, the phenolic hydroxyl and methylene in the structure of conventional phenolic resin are extremely vulnerable to oxidation, resulting in the poor heat resistance of rail grinding wheels constructed with conventional phenolic resins [11,12]. In addition, the rigid benzene rings in the molecular chain structure of the conventional phenolic resin used to manufacture rail grinding wheels are only connected by methylene groups after curing, which makes the mechanical properties of the conventional phenolic resin relatively average and also leads to the poor mechanical performance of rail grinding wheels [13,14].…”

Effect of alumina content on the thermal, mechanical and tribological properties of resin‐based friction materials

“…Consequently, resin-based friction materials suffer from considerable thermal degradation, a significant drop in the COF, and severe high-temperature abrasion during braking. 13,14 In response to the thermal degradation of resin-based friction materials, researchers have made numerous attempts and proposed a number of improvement solutions, primarily including the following three: heat resistance modification of the resin, 15,16 blending a variety of reinforcement fibers, [17][18][19][20] and the addition of friction-enhancing components. [21][22][23][24] The addition of friction-enhancing components improves the stability of the COF, reduces abrasion, may be designed, and is easy to operate in contrast to the previous two methods.…”