In the process of continuous evolution of organic silicon materials towards high-performance and functionalization, the design of molecular structure has become a key factor determining the performance boundaries of products. The company's launched product, the multi-chain polyether modified epoxy silicone oil ESM series, as a new structure of dual-terminal side-chain epoxy polyether silicone oil, has achieved a molecular-level breakthrough from a two-dimensional linear structure to a three-dimensional three-dimensional architecture. It demonstrates significant performance improvement value in textile feelants, resin processing and coatings, providing high-performance material modification solutions for the industry.


1. Core physical and chemical properties of the product


The ESM31 and ESM32 models of the multi-chain polyether modified epoxy silicone oil series are both colorless or light yellow transparent liquids. At 25 degrees Celsius, the viscosity of ESM31 is 350 to 400 millipascal-seconds, and the epoxy value is 0.030 to 0.033 millimoles per gram; the viscosity of ESM32 is 300 to 350 millipascal-seconds, and the epoxy value is 0.027 to 0.030 millimoles per gram. The solid content of both products reaches 90.0% to 92.0%. The high solid content characteristic effectively reduces the solvent usage and is in line with the green application trend.


2. Core structural innovation and performance advantages


The core innovation of the multi-chain polyether modified epoxy silicone oil ESM series lies in its unique molecular architecture. Traditional linear epoxy polyether silicone oil only carries reactive groups at the chain ends or a few sites, and the crosslinking density and spatial coverage capacity have physical limits. However, the ESM series grafts polyether chain segments and epoxy reactive groups at multiple points on the linear polysiloxane main chain, forming a comb-shaped multi-chain three-dimensional structure. This structural design brings the following core performance advantages:


It retains the characteristics of the original epoxy polyether silicone oil, such as high activity, good compatibility, and excellent hydrophilicity. By introducing multiple reactive groups to modify the main chain with multiple branch chains, it gives subsequent modified products three-dimensional or even interpenetrating network structures, significantly increasing the spatial crosslink density of organic silicon molecules on various materials.


The multi-chain structure enables the molecules to simultaneously bond with multiple reaction sites during chemical reactions, forming a denser spatial network, thereby significantly improving the interface bonding force, toughness, and durability of the material.


3. Main application fields


The ESM31 and ESM32 multi-chain polyether modified epoxy silicone oil series can play a key role in the following application fields due to their three-dimensional molecular structure design:


1. Textile feelant field. The product can be used as an important raw material for the new generation of block copolymer silicone oil. The chemical law "structure determines performance" is a common consensus. The multi-chain polyether modified epoxy silicone oil can give the modified amine oil high amine value and moderate crosslinking degree, significantly improving the richness and fullness of the feel, and forming a significant differentiation in performance from the current conventional block silicone oil. Its multi-chain structure gives fabrics an ultra-soft, full, and smooth feel, while the polyether chain segments provide good hydrophilicity and anti-static properties, suitable for cotton, polyester, nylon, wool, and other fabric materials.


2. Resin processing field. The multi-chain modified new structure polyether epoxy silicone oil can increase the epoxy equivalent of epoxy resin through the chemical reaction mechanism with the curing agent, significantly improving the interface bonding force of the material and enhancing the toughness and strength. The three-dimensional structure enables it to construct a more dense network when participating in resin crosslinking, suitable for scenarios with extremely high durability requirements for composite materials.


3. Coatings field. Due to the higher weight of the polyether chain segments in the product, its compatibility with water-based coatings and stability are significantly improved. The reactive epoxy groups in the three-dimensional structure react with various amino resins in the coating, increasing the elasticity and scratch resistance of the coating film. A dense cross-linked network is formed within the solidified film, significantly enhancing the coating's elasticity, scratch resistance, and overall durability.


IV. Packaging Specifications and Storage Conditions


The product should be stored in a cool and dark place. It is packaged at 950 kilograms per barrel. This product should also be stored in a cool and dark place and transported as non-hazardous goods.


V. Quality Assurance and Industry Application Value


The product, the multi-chain polyether modified epoxy silicone oil ESM series, has established a strict quality control system during production. Key indicators such as product appearance, viscosity, epoxy value, and solid content are monitored throughout the process to ensure consistency and reliability between batches.


As industries such as textile printing and dyeing, water-based coatings, and high-performance resins continue to upgrade towards higher performance and greenness, the demand for functional additives that combine structural innovation and adjustable performance is steadily increasing. The multi-chain polyether modified epoxy silicone oil ESM series, with its three-dimensional molecular structure design, precisely controllable performance parameters, and wide industry applicability, is becoming an important raw material option in textile feel agents, resin modification, and coating development. Its structural breakthrough from linear to three-dimensional provides strong technical support for the product differentiation and performance upgrade in the downstream industry.