1、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.

2、Preparation and Characterization of Chloroprene Latexes Modified

The introduction of vinyl-POSS (OVS) into the resin structure can effectively improve the thermal stability of chloroprene adhesives. In this paper, modified waterborne chloroprene latex was prepared by copolymerization of methyl methacrylate and OVS with chloroprene latex.

3、Open Access proceedings Journal of Physics: Conference series

Chloroprene is widely used to make seal, joint, and also as an adhesive. Before used as rubber product, the CR must be added with several additives. One of the additives is the phenolic...

4、A comprehensive review on modified phenolic resin

Current research on PR modification emphasizes both physical methods, including filler enhancement and fiber reinforcement, and chemical methods, such as copolymerization, grafting, and cross‐linking.

5、Research progress on modification of phenolic resin

This review covers the synthesis processes used to prepare chemically modified phenolic resins and classifies and summarizes them. The types of modifiers, the timing in adding modifiers, and the advantages and disadvantages of different synthesis processes are considered.

Study of scavengers for free formaldehyde reduction in phenolic resins

Phenolic resins used in the manufacture of adhesives inherently have formaldehyde which is trapped during synthesis. This study was carried out to reduce this to non-detectable levels of free formaldehyde. Sodium sulphite and sodium metabisulphite were used as scavengers to reduce free formaldehyde content.

A review on recent advancements in extraction, removal and recovery of

This review also highlights the adsorption technique for the cleaner removal of phenol from aqueous solution with novel as well as low-cost adsorbents in the removal of phenolic compounds.

A comprehensive review on modified phenolic resin composites for

Current research on PR modification emphasizes both physical methods, including filler enhancement and fiber reinforcement, and chemical methods, such as copolymerization, grafting, and cross-linking.

Modern Phenolic Adhesives for Aviation and Engineering. Part 2

Part I of the review article [1] covered methods for modifying phenolic adhesives by introducing various modifying components, such as rubbers, fillers, resins, polymers, etc., into phenolic resins (PRs) which can react with PR during curing.

Modified phenolic resin for the removal and reduction of Au(III) and

Semantic Scholar extracted view of "Modified phenolic resin for the removal and reduction of Au (III) and simultaneously as the nano-Au (0) immobilized carrier for catalysis" by Yong Xiang et al.

In modern materials science, the synthesis and application of polymeric materials represent a constantly evolving field. Phenolic resin-modified chloroprene adhesive, as a composite material with specific properties, is increasingly widely used in industries such as construction, automotive, and aerospace. with advancements in technology and growing environmental awareness, the efficient and eco-friendly removal of such materials has become an urgent problem to address. This article discusses the removal of phenolic resin-modified chloroprene adhesive, exploring its methods and environmental impacts.

Phenolic resin-modified chloroprene adhesive is a composite material consisting of a phenolic resin matrix and chloroprene rubber as the reinforcing phase. It exhibits excellent heat resistance, oil resistance, and chemical corrosion resistance, along with high mechanical strength and good processing performance. its complex chemical structure makes it difficult to remove effectively using conventional physical or chemical methods.

Currently, the main methods for removing phenolic resin-modified chloroprene adhesive include:

1. Thermal Treatment Method: High-temperature processing induces thermal decomposition of the phenolic resin, reducing its molecular weight and softening it for subsequent recycling. this method may negatively affect the chloroprene rubber matrix, leading to performance degradation.

2. Solvent Cleaning Method: Organic solvents such as trichloroethylene or toluene are used to dissolve the phenolic resin, followed by filtration or centrifugation to obtain pure chloroprene rubber. While effective, this method poses significant environmental pollution risks and high costs.

3. Mechanical Method: Grinding, shearing, or other mechanical actions disrupt the interfacial forces between the phenolic resin and chloroprene rubber, achieving separation. Simple to implement, this method may damage the chloroprene rubber.

4. Biological Method: Enzymes produced by microbial metabolism degrade the phenolic resin. This eco-friendly approach requires specific microbial strains, and degradation efficacy depends on multiple factors.

5. Chemical Method: Chemical reactions such as acid-base neutralization or oxidation-reduction break down the phenolic resin structure, eliminating its interaction with chloroprene rubber. This method is relatively environmentally friendly but requires precise control of reaction conditions.

Several factors must be considered during the removal process:

1. Cost-Effectiveness: The economic viability and feasibility of the removal method should be prioritized.

2. Environmental Protection: Minimize pollution by adopting eco-friendly technologies.

3. Product Quality: Ensure the recycled chloroprene rubber retains desirable properties for subsequent applications.

4. Operational Simplicity: The removal process should be easy to execute to improve efficiency.

removing phenolic resin-modified chloroprene adhesive remains a technically challenging task. Existing methods have trade-offs, and practical applications require tailored solutions based on specific needs and conditions. In the future, advances in material research and technology may lead to more efficient, environmentally friendly, and cost-effective removal strategies, contributing to the sustainable development of polymeric materials.