Results 31 to 40 of about 585 (182)

Studies on Allyl Ether of Novolac

Kobunshi Kagaku, 1965
アリルエーテル化ノボラックの硬化反応および硬化物の性質を比較検討することにより次のような知見を得た。1) アリルエーテル化ノボラックは通常のビニルモノマーで橋かけすることにより, 不溶不融の硬化物を与え, 硬化物の性質は用いたモノマーや開始剤の種類に関係がある。2) 多くのモノマーに対してカチオン系開始剤による硬化はすみやかに完全に進むのに対し, ラジカル系開始剤では不完全に進むか, または全然進行しないものが多い。3) 開始剤を添加した直後の樹脂および硬化生成物にESRの吸収が認められた。これはその中にかなりの量の不対電子が安定に存在していることを示している。このことより硬化反応にはカチオンおよびラジカルのいずれもが寄与していると推定される。4 ...
Morinaga, Midori, Murayama, Shin-ichi, Nakatsuka, Ryuzo   +2 more
  +6 more sources

Accelerating Sustainable Epoxy Resin Development Through Bayesian Optimization and Inverse Design

Journal of Applied Polymer Science, Volume 143, Issue 37, October 5, 2026.
Development of a machine learning framework for the optimization of the Tg of partially bio‐based epoxy resin formulations in a 13‐component design space using Bayesian optimization, active learning, random design, and inverse design. The results show that the BO effectively navigates high‐dimensional formulation spaces, and the final ML model could ...
Natalie Wunder, Rodrigo Q. Albuquerque, Florian Max, Holger Ruckdäschel   +3 more
wiley   +1 more source

Improving the thermal stability and dielectric properties of epoxy/phenolic resin type (novolac) composites by incorporating carbon nanofibers (CNFs)

Journal of Nigerian Society of Physical Sciences
This study aims to enhance the thermal stability and dielectric properties of an epoxy/phenolic resin-type novolac blend by incorporating carbon nanofibers (CNFs). The EP/novolac-CNF composite was created by dispersing a 10% weight fraction of CNFs into
Elsammani Ali Shokralla
doaj   +1 more source

A new strategy for the synthesis of modified novolac resin and its polymer/clay nanocomposite

eXPRESS Polymer Letters, 2019
A novel epoxy nanocomposite composed of epoxidized novolac (ENR), epoxidized polystyrene (EPSt), and nanoclay was fabricated and characterized successfully.
R. Mohammad-Rezaei, B. Massoumi, M. Eskandani, M. Abbasian, M. Jaymand   +4 more
doaj   +1 more source

Synthesis and Characterization of Epoxidized Beechwood Pyrolysis Bio-Oil as a Curing Agent of Bio-Based Novolac Resin

Fuels, 2023
A bio-oil-based epoxy (BOE) resin was synthesized using phenolic compounds from beechwood pyrolysis oil. These compounds were separated from crude pyrolysis oil by coupling two methods: fractional condensation and water extraction. The chemical structure
Jie Xu, Nicolas Brodu, Lokmane Abdelouahed, Chetna Mohabeer, Bechara Taouk   +4 more
doaj   +1 more source

Synergistic Effects of Phenolic Resin and Polymer Architecture on Crosslink Density and Damping in Poly(Epichlorohydrin‐Co‐Ethylene Oxide‐Co‐Allyl Glycidyl Ether) (GECO) Elastomers

Journal of Polymer Science, Volume 64, Issue 16, Page 3471-3491, 15 August 2026.
Phenolic resin reduces crosslink density and alters the viscoelastic response of GECO elastomers. The magnitude of these changes depends strongly on polymer architecture. Damping performance is governed by the combined effects of network density and molecular structure, not resin content alone, providing a framework for designing advanced vibration ...
Yalçın Yalaki, Murat Şen
wiley   +1 more source

Applications of Textile Waste as Reinforcement in Fiber‐Reinforced Polymer Composites for Circularity—A Review

Macromolecular Materials and Engineering, Volume 311, Issue 8, August 2026.
This review highlights the utilisation of textile waste in fibre‐reinforced polymer composites to reduce environmental impacts of pre‐ and post‐consumer textile waste. It critically examines waste composites’ manufacturing processes, their structural details, mechanical, thermal, physical properties, while discussing chemical treatments, hybridization ...
Md Ikramul Islam, Hom N. Dhakal, Andrew Pickford, Seeram Ramakrishna, Abu Saifullah   +4 more
wiley   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, Volume 28, Issue 10, 20 May 2026.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Thickness Reduction Strategy for Graphite Composite Bipolar Plates: Materials, Structure, and Manufacturing Process

Carbon Neutralization, Volume 5, Issue 3, May 2026.
Schematic diagram of challenges and advanced strategies by CBP after thickness reduction. ABSTRACT The proton exchange membrane fuel cell (PEMFC) converts clean hydrogen's chemical energy into electricity and is vital for carbon neutrality. However, its development is limited by low volumetric power density and high cost.
Chengxin Li, Xiaomin Meng, Yi Zhang, Chenyao Li, Junsheng Zheng, Victor V. Tcherdyntsev, Pingwen Ming   +6 more
wiley   +1 more source

Activated Carbons from Crosslinked Novolac Resin

Adsorption Science & Technology, 2005
Activated carbons were prepared from well-characterized Novolac resin cured with various amounts of hexamethylenetetramine (HMTA). The process consisted of curing the resin with HMTA at 200°C, carbonization in nitrogen at 600°C and gasifying the char in ...
Janusz Pajak, Grzegorz Labojko, Andrzej Lachowski   +2 more
doaj   +1 more source