-
Basic Knowledge of Waterborne Polyurethane Emulsion Synthesis
- 2026-03-12 17:02:25
- admin
01 Polyurethane The structure of polyurethane is formed by the reaction of polyisocyanates (e.g., diisocyanate OCN-R-NCO) and polyols (e.g., diol HO-R-OH), where urethane segments are repeating structural units. Polyurethane structures have structures similar to amide and ester groups; therefore, the chemical and physical properties of polyurethane are between those of polyamides and polyesters. S...
-
Specialty Paper Chemicals: An Introduction — Acrylic Resins -I
- 2026-03-17 17:58:56
- admin
Acrylic resins constitute a broad category of synthetic polymers produced through the copolymerization of acrylate monomers (such as methyl acrylate, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, etc.) and methacrylate monomers (such as methyl methacrylate—commonly known as the monomer for organic glass or PMMA). I. Core Characteristics and Advantages Excellent Film-Forming Properties: Ca...
-
Specialty Paper Chemicals: II. Types of Acrylic Resins
- 2026-03-20 16:10:36
- admin
II. Types of Acrylic Resins (1) Classification by Thermal Behavior (Film-forming Characteristics): ① Thermosetting Acrylic Resins: Based on acrylic monomers as their fundamental components, these resins undergo further reactions—either among their own functional groups or with active functional groups in other resin systems (such as amino resins, epoxy resins, polyurethanes, etc.)—during the heati...
-
Specialty Paper Chemicals: III. Applications of Acrylic Resins
- 2026-03-21 17:42:22
- admin
Acrylic resins find extremely broad application across various industrial sectors, including coatings, chemical fibers, textiles, adhesives, leather, papermaking, inks, rubber, and plastics. Acrylic Adhesives Acrylic Coatings Superabsorbent Polymers (SAP) Acrylic Rubber (ACM, AEM) Acrylic Plastics: (1) Organic Glass (PMMA) The most prominent variety of acrylic plastics is polymethyl methacryl...