1、Research progress on modification of phenolic resin
Modified resins prepared by pre-modifying phenol through etherification are collectively referred to as etherified-phenolic resins and are typical examples of phenolic resins modified using the pre-polymerization modification method.
2、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.
3、我院复合材料学科方向在《Polymer Composites》发表最新
近日，我院韩文钦老师课题组在国际重要刊物《Polymer Composites》 (IF=4.8,中科院二区)发表题为：“Study on the toughening of epoxy resin modified by multi-component fillers of carbon nanofibers/nano-silica/short carbon...
4、Modified resins produce more powerful components
Modified resins are formulation constituents in epoxy resins or vinyl ester resins. They are suitable for use in all forms of manufacturing, from RTM to VARTM, prepreg, or filament winding. If used as a constituent in resin formulations, these products will help to make components strong and rigid.
5、Modified phenolic resins and their compatibility with the components of
PDF | On Jan 1, 2020, K.E. Varlan and others published Modified phenolic resins and their compatibility with the components of epoxy-phenolic protective coatings | Find, read and cite all the...
Modified resin_化工百科
改性树脂是一种经过化学改性处理的树脂材料，具有特定的性质和用途。 下面是关于改性树脂的性质、用途、制法和一些安全信息的介绍： - 改性树脂具有较优异的物理性质和化学稳定性，可以满足特定的需求。 - 常见的改性树脂可以提供良好的耐久性、抗化学腐蚀性能、耐高温性以及力学性能的改进。 - 改性树脂还可以通过调整其溶解度、粘度、硬度和弹性等性质来满足不同的应用要求。 - 改性树脂广泛应用于涂料、胶黏剂、塑料、纤维等领域。 - 涂料中的改性树脂可以提供优异的附着性、耐候性、抗刮擦性和耐化学腐蚀性。 - 在胶黏剂中，改性树脂可提供高粘接强度、耐化学腐蚀性和优异的耐热性能。 - 在塑料领域，改性树脂可以改善塑料的机械性能、热稳定性和可加工 …
Modified PF Resins for Composite Structures with Improved Mechanical
In its natural form, crude CNSL is a mixture of different phenolic compounds. The main constituents of CNSL are cardanol, cardol, 2-methyl cardol and small amounts of anacardic acid. The chemical structures of these components are shown in Figure 1.
Research Progress in Boron
As one of the most successful modified phenolic resins, boron-modified phenolic resin (BPF) has excellent heat resistance and ablative resistance, good mechanical and wear resistance, and flame retardancy. BPF and its composites can be widely used ...
Studies of modified bismaleimide resins Part I The influence of resin
The influence of the components of a modified bismaleimide (BMI) resin on the thermal properties and impact properties of these resins are investigated in this paper.
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.
In the vast realm of modern material science, modified resins have become an indispensable part due to their unique properties and widespread applications. These remarkable substances not only breathe new life into materials but also play irreplaceable roles across various fields. This article delves into the components of modified resins, lifting the veil on their mysteries and highlighting their significant position in contemporary society.
Modified resins are materials whose original properties (such as hardness, toughness, corrosion resistance, etc.) are enhanced by adding or altering certain chemical components. The emergence of such materials marks a major breakthrough in the field of material science, offering greater possibilities and significantly improving material performance.
The primary components of modified resins typically include the resin matrix, fillers, additives, and solvents. The resin matrix forms the foundation of the material, determining its basic properties; fillers are critical for enhancing strength and hardness; additives impart specific functionalities; and solvents act as mediums to dissolve or disperse the resin and fillers.
Resin Matrix The resin matrix is the backbone of modified resins, defining their fundamental characteristics. Common matrices include phenolic resins, epoxy resins, and unsaturated polyester resins. Each matrix has distinct advantages: phenolic resins excel in heat and chemical resistance, while epoxy resins offer superior adhesive properties and mechanical strength. Selecting the appropriate matrix is crucial to achieving desired performance in modified resins.
Fillers Fillers are integral to improving the strength and hardness of modified resins. Widely used fillers include silica powder, diatomaceous earth, and calcium carbonate. The type and proportion of fillers directly impact the resin’s properties. For instance, silica powder enhances hardness and wear resistance, while diatomaceous earth improves corrosion resistance and aging resistance.
Additives Additives are key to endowing modified resins with specific functionalities. These include curing agents, accelerators, and flame retardants. Curing agents facilitate cross-linking reactions to solidify the resin, accelerators speed up this process, and flame retardants reduce toxic smoke and heat release during combustion. Choosing the right additives is vital for ensuring optimal performance.
Solvents Solvents are indispensable in the preparation of modified resins. They dissolve or disperse the resin and fillers, creating a uniform mixture. Different solvents influence the resin’s properties and processability. For example, alcohol-based solvents lower viscosity for easier shaping, while ketone-based solvents enhance hardness and wear resistance.
Modified resins find broad applications in construction, automotive manufacturing, and electronics. In construction, they reinforce concrete, mortar, and waterproof coatings, extending the lifespan of structures. In automotive production, they improve safety and reliability in parts manufacturing. In electronics, they ensure stability and reliability in circuit boards and insulating materials.
the composition of modified resins determines their performance. By advancing research and application of these materials, we can better meet engineering demands and drive progress in material science. Looking ahead, modified resins are poised to showcase their unique value and charm across even more domains.
