1、Synthesis, Characterization and Application of Biobased Unsaturated
Biobased unsaturated polyester resin (b-UPR), synthesized from waste polyethylene terephthalate (PET) glycosylate and renewable origin maleic anhydride (MAnh) and propylene glycol (PG), was reinforced with unmodified and vinyl-modified biosilica nanoparticles obtained from rice husk.
2、碳纳米管协同六亚甲基四胺增韧改性酚醛树脂及其性能研究
However, HMTA can lead to an obvious decrease in the heat-resistance of phenolic resins. Adding carbon nanotubes to the 2.5wt%HMTA toughened phenolic system can increase the Td5 (Pyrolysis temperature at 5wt% mass loss) of the resin system to the level of the unmodified phenolic resin, while also exhibiting excellent toughened ...
3、Advancing Wood Adhesive Sustainability: Unmodified Technical Lignins as
In this study, lignin-based phenolic adhesives were developed by replacing 80% of the petrochemical phenol with two commercially available kraft softwood (K-SW) and organosolv wheat straw (O-WS) lignins, without any further modifications.
4、Research progress on modification of phenolic resin
The structural difference between the new phenolic resin and the unmodified phenolic resin is that the new phenolic resin replaces the methine group in the phenolic resin molecular structure with arylene dimethyl.
Lapox ARTF
Recommendations: A trifunctional unmodified resin based on m-amino phenol for aerospace and high performance applications.
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Synthesis, Characterization and Application of Biobased Unsaturated
Biobased unsaturated polyester resin (b-UPR), synthesized from waste polyethylene terephthalate (PET) glycosylate and renewable origin maleic anhydride (MAnh) and propylene glycol (PG), was reinforced with unmodified and vinyl-modified biosilica nanoparticles obtained from rice husk.
Unmodified Liquid Epoxy Resins
Because of its very good mechanical, adhesive, dielectric and chemical resistance properties when cross-linked with appropriate curing agents, it has become a global standard epoxy resin.
Unmodified epoxy resin MR. JO
Conventional unmodified bisphenol-A epoxy resins such as JPOXY JR 3000 or JR 3010 deliver excellent mechanical and chemical resistance, but their relatively high viscosity can pose challenges in high-solids formulations,...
Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated
In this paper, the fire behavior of unsaturated polyester resin (UP) modified with L-histidinium dihydrogen phosphate-phosphoric acid (LHP), being a novel intumescent fire retardant (IFR), was investigated.
Unmodified resin is a term commonly used in the field of polymer chemistry, referring to synthetic polymers that have not undergone any chemical modifications or additives. It typically retains its original molecular structure and properties, without introducing new functional groups or undergoing chemical alterations. This article explores the characteristics, applications, and future prospects of unmodified resin.
Characteristics of Unmodified Resin
Unmodified resin is a stable polymer with a high degree of molecular order, making it highly resistant to degradation. Its mechanical properties, such as tensile strength, elongation at break, and impact resistance, are relatively strong. Additionally, it exhibits excellent heat stability and chemical resistance, making it suitable for various industrial applications.
unmodified resin also has limitations. For instance, its thermal stability may be lower than that of modified resins, meaning it could degrade or melt at higher temperatures. Furthermore, its optical transparency and electrical conductivity are generally inferior to those of modified resins.
Applications of Unmodified Resin
Due to its unique advantages, unmodified resin is widely used across industries. In the automotive sector, it serves as an engine block material, offering wear resistance and thermal stability. In electronics, it functions as insulation material in capacitors, resistors, and transformers, ensuring long-term reliability and energy efficiency.
In construction, unmodified resin is employed as a structural material for reinforcing bars and beams, providing load-bearing capacity and fire resistance. In pharmaceuticals, it is used for packaging medicinal products, ensuring safety and stability during storage and transportation.
Future Prospects of Unmodified Resin
As demand for high-performance materials grows, the development of unmodified resin remains significant. Researchers are exploring ways to enhance its thermal stability and electrical conductivity through methods like chemical modifications or physical treatments, such as adding flame retardants or conductive fillers.
its application in green and sustainable materials is a key focus. By incorporating renewable resources or low-carbon additives, unmodified resin can become more environmentally friendly. For example, adding natural rubber could improve its flexibility and elasticity, making it suitable for flexible hoses and seals.
Unmodified resin is a stable polymer with numerous advantages, though its limitations must also be considered. Through ongoing research and innovation, unmodified resin will continue to provide valuable solutions for industrial applications.
