1、Rosin‐modified o‐cresol novolac based vinyl ester

Rosin-modified phenolic resins were first produced by BEHRENDS by the polycondensation of phenols, formaldehyde, and rosin. The most common phenols, used in the modification of rosin, are 4-tert-butylphenol and 4, 4′-diphenyl propane (bisphenol-A).

2、Research progress on modification of phenolic resin

In recent years, more and more researchers have focused on the discussion of the properties of modified phenolic resins and gradually ignored the research on the synthesis processes that can affect the molecular structure and properties of phenolic resins.

3、novolac epoxy和Phenolic Epoxy 酚醛环氧浅谈

Epoxy phenol novolac (EPN) resins contain more than two epoxy groups per molecule and are therefore described as multifunctional epoxy resins. In other words these are polyepoxides obtained by reacting a phenolic novolac resin with epichlorohydrin. When cured, these provide a high cross-link density due to the increased epoxy functionality.

4、Thermo‐mechanical properties of rosin‐modified o‐cresol novolac epoxy

The curing process of rosin-modified epoxy cured with imidoamine crosslinkers was studied using differential scanning calorimetry (DSC) and the results were compared to o-cresol novolac epoxy resin (EOCN) and some previously reported commercial-based systems.

(PDF) Rosin

The study synthesizes a novel vinyl ester resin (AVEOCN) from rosin-modified o-cresol-formaldehyde novolac resin. The AVEOCN exhibits superior thermal stability, with initial decomposition temperatures (IDT) reaching 365 °C.

Environmentally Friendly o–Cresol–Furfural–Formaldehyde Resin as an

Phenol–formaldehyde resins were discovered in 1872 by A. Bayer. They have been on the market since 1907–1909, when Baekeland started their production on an industrial scale.

邻甲酚醛环氧树脂_百度百科

邻甲酚醛环氧树脂（O-Cresol Novolac Epoxy）是一种多官能团线型酚醛环氧树脂，CAS号为29690-82-2，由邻甲酚醛树脂与环氧氯丙烷反应制得。 该树脂具有淡浅黄色珠状固体外观，环氧当量范围为190-2230g/eq，水解氯含量低于300ppm。

Preparation and properties of epoxy

Preparation and properties of epoxy-modified thermosettin... This article proposes the preparation and microwave thermal cured (MTC) epoxy-modified phenolic fibers for the first time.

Naphthalene modified cresol epoxy resin上海衡封新材料

It is a special naphthalene modified epoxy resin with low water absorption and high electrical performance, mainly used as packaging materials and electronic materials

Thermo

Herein this review is studied to be made concerning the replacement of phenol and aldehyde compounds in the phenolic resin. Cardanol is a phenol-based by-product having an unsaturated alkyl...

Modified o-cresol phenolic epoxy resins are a class of high-performance materials with unique properties, widely used in aerospace, automotive manufacturing, electronics, construction, and other fields. Due to their excellent physical and chemical properties, they have become indispensable in modern industry.

O-cresol phenolic resin is a thermosetting resin synthesized through condensation polymerization of polyols and phenolic compounds. It exhibits superior mechanical strength, chemical resistance, and electrical insulation. its poor heat resistance and moisture resistance limit applications in high-temperature or humid environments. To overcome these limitations, scientists have modified the resin via chemical approaches, introducing functional groups or altering molecular structures to develop modified o-cresol phenolic epoxy resins.

Key Modification Approaches:

1. Incorporation of Organosilicon Groups: Silane coupling agents react with hydroxyl groups in the resin to form silicon-oxygen bonds, enhancing heat and moisture resistance. Silicon modification also improves adhesion, making it suitable as a matrix for composites.

2. Introduction of Epoxy Groups: Epoxy groups are chemically grafted onto o-cresol phenolic molecules, forming epoxy-modified resins. This increases crosslinking density, thereby improving mechanical properties and thermal stability.

3. Integration of Aromatic Rings: Adding aromatic structures boosts heat resistance and chemical corrosion resistance. Aromatic rings also enhance mechanical strength and electrical insulation.

4. Nano-Filler Reinforcement: Nano-fillers (e.g., carbon nanotubes, graphene) with high specific surface areas are dispersed in the resin to significantly improve mechanical performance and thermal stability.

5. Functional Additives: Additives like UV absorbers, antistatic agents, and flame retardants optimize comprehensive properties for specific applications.

6. Bio-Based Raw Materials: Environmentally friendly resins derived from renewable resources (e.g., biomass, vegetable oils) align with growing eco-conscious demands.

Application Prospects:

Modified o-cresol phenolic epoxy resins play critical roles across industries:

• Aerospace: Engine blades, aircraft structural components.
• Automotive: High-performance materials for vehicle bodies and chassis.
• Electronics: Substrates for circuit boards and encapsulation materials.
• Construction: Key components in building materials and decorative finishes.

Modified o-cresol phenolic epoxy resins,凭借其卓越的性能和广泛的应用潜力，已成为现代工业不可或缺的高性能材料。随着技术进步和环保要求的提高，这类材料必将在更多领域发挥更大作用。

Note: The translation maintains technical accuracy while adapting terminology (e.g., "改性" as "modified," "纳米填料" as "nano-fillers") and ensuring clarity for English readers. Industry-specific terms (e.g., "热固性树脂" as "thermosetting resin") follow standard scientific conventions.