1、Boric acid modified macroporous adsorption resin and its adsorption
Herein, we reported a boric acid functionalized resin which was synthesized by Friedel − Crafts acylation reaction and the aim of this article was to reveal adsorption performance and mechanism of cis−diol compounds on this resin.
2、Preparation and Properties of Polyester Modified Waterborne High
A high hydroxyl content waterborne polyester-acrylate emulsion was successfully synthesized in two steps. Firstly, the carboxyl terminated unsaturated polyester was synthesized, then it was reacted as a monomer with acrylate monomer by emulsion polymerization using the semi-continuous seeded method.
3、Cross
In this review, the progress of research on cross-linked polymers based on B–O bonds with different structures and functions, and the synthesis, structure and properties are highlighted.
REACTIONS BETWEEN BORIC ACID AND
REACTIONS BETWEEN BORIC ACID AND POLYHYDROXY COMPOUNDS AND THE DEVELOPMENTS OF BORON－SELECTIVE RESINS
Acrylic
By incorporating the organic acid groups of acrylic acid, the resin gains enhanced chemical stability and acid resistance while retaining the superior physical and mechanical properties of hydroxy polyester.
Water
WLR-6500 is a super-disproportionation of water-soluble acrylic modified polyester resin with hydroxyl functional groups and has good adhesion on metal, Glass and Ceramics, excellent weather-resistant light-resistant properties and impact resistance.
Preparation and Properties of Polyester Modified Waterborne High
The optimum amount of HEMA in the synthesis of modified resin and its effect on emulsion were investigated. The changes in viscosity, molecular weight and particle size distribution of modified resin emulsion after polyester introduction were investigated.
Boric Acid Modified Epoxy Resin
Boric acid modified epoxy resin, with its unique combination of mechanical strength, chemical resistance, electrical insulation, and thermal stability, holds immense potential across diverse industries.
Modified flame retardant active filler particle of pumice, aluminum
Aluminum trihydroxide (ATH) and boric acid (H 3 BO 3) are good flame retardant fillers for use in the Glass Fiber Reinforced Plastic (GFRP) composite applications with unsaturated polyester resin matrix.
Boron
The synthesis of BPR from the reaction phenolic resins, produced under basic conditions (resoles) and boric acid was not feasible. The reactivity of the resoles species with each other is more favorable than that with boric acid.
Abstract: With the continuous advancement of technology, the development of novel materials has become a critical driving force for modern industrial progress. Among these, boric acid-modified hydroxy polyester resin, as a high-performance polymer material, has garnered widespread attention due to its exceptional properties. This resin not only exhibits superior mechanical strength, thermal stability, and chemical resistance but also demonstrates excellent electrical insulation and flame retardancy. These characteristics position it as a promising candidate for applications in fields such as electronic packaging, composite materials, and high-performance coatings. This article provides an in-depth exploration of the properties, synthesis methods, and practical applications of boric acid-modified hydroxy polyester resin.
1. Properties of Boric Acid-Modified Hydroxy Polyester Resin
Hydroxy polyester, a polymer synthesized via esterification reactions between polyols and dibasic acids, is widely used in industrial products due to its favorable mechanical properties, processability, and chemical resistance. The introduction of boric acid groups into hydroxy polyester imparts unique physical and chemical characteristics to the material.
1.1 Mechanical Properties Boric acid-modified hydroxy polyester resin exhibits high strength and rigidity, making it an ideal material for structural components. For instance, in automotive manufacturing and aerospace industries, these high-performance materials can withstand extreme environmental conditions, ensuring product safety and reliability.
1.2 Thermal Stability The resin maintains excellent physical properties at elevated temperatures, attributed to the inherent thermal resistance of hydroxy polyester. The incorporation of boric acid further enhances thermal stability, preventing deformation or degradation under high-temperature conditions and prolonging service life.
1.3 Electrical Insulation Boric acid-modified hydroxy polyester resin possesses outstanding electrical insulation properties, suiting it for use as encapsulation material in electronic devices. Its superior insulation capabilities effectively prevent current leakage, improving the stability and safety of electronic equipment.
1.4 Flame Retardancy The resin also demonstrates significant flame-retardant properties. The addition of boric acid reduces combustion rates and suppresses smoke generation, enhancing fire safety. This is crucial for the safe application of flammable materials.
2. Synthesis Methods for Boric Acid-Modified Hydroxy Polyester Resin
The preparation of boric acid-modified hydroxy polyester resin typically involves the following steps:
2.1 Raw Material Preparation Selection of appropriate hydroxy polyester as the base polymer, along with suitable dibasic acids and boric acid, is critical. The choice of raw materials directly impacts the final product’s performance.
2.2 Esterification Reaction A mixture of dibasic acid and hydroxy polyester is subjected to esterification at controlled temperatures to form hydroxy polyester resin. This step is pivotal, requiring precise reaction conditions to ensure efficiency and product quality.
2.3 Boric Acid Grafting Boric acid groups are introduced onto the polymer chain through methods such as acid-base reactions with hydroxyl groups or other chemical grafting techniques.
2.4 Post-Treatment Processes like drying or melt spinning may be employed to enhance physical properties. These steps eliminate unreacted monomers, improving purity and uniformity.
3. Applications of Boric Acid-Modified Hydroxy Polyester Resin
Owing to its comprehensive advantages, this resin holds vast potential across multiple domains:
3.1 Electronic Packaging Materials Its electrical insulation and flame-retardant properties make it suitable for encapsulating electronic components. The material ensures stability under high voltage and temperature, preventing electrical failures and fire risks.
3.2 High-Performance Composites When combined with materials like carbon or glass fibers, boric acid-modified hydroxy polyester resin produces composites with exceptional mechanical and thermoresistant properties. These composites are vital in aerospace and automotive industries for enhancing product performance.
3.3 Architectural Coatings The resin serves as a weather-resistant coating in construction, preserving gloss and color over extended outdoor exposure. This application extends the lifespan of buildings.
Boric acid-modified hydroxy polyester resin, as a novel polymer material, boasts remarkable mechanical strength, thermal stability, electrical insulation, and flame retardancy. Its broad applicability in electronic packaging, composite materials, and architectural coatings underscores its significance. With advancing technology and growing market demands, research and development in this field are expected to deepen, expanding its role in emerging industries.
