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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...
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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...
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Water-based Acrylic Emulsions for Paper Varnishes
- 2026-03-25 18:23:32
- admin
Leveraging their exceptional surface modification capabilities, water-based acrylic emulsions enhance both the physical properties and printability of coatings applied to paper. When incorporated into a formulation and applied to the paper surface, they form a protective film that improves surface strength, water resistance, and smoothness, while simultaneously reducing ink penetration t...
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Need Water Based Acrylic Box Sealing Adhesive That Are Both Secure And Eco-Friendly
- 2026-03-26 11:14:42
- admin
Seeking a packaging seal that balances both strength and eco-friendliness? Water-based acrylics offer the perfect "best-of-both-worlds" solution! As a core raw material for sealing adhesives, they are widely utilized across diverse packaging applications—including food, express delivery, and daily chemical products. Whether applied to paper boxes, plastic bags, or composite film materials, they en...
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Application of Waterborne Acrylic Emulsion in Adhesives
- 2026-04-03 15:54:45
- admin
As environmental regulations tighten globally and end users increasingly prioritize health and sustainability, the adhesive industry is undergoing a fundamental shift from solvent‑based to eco‑friendly alternatives. Among the various solutions, waterborne acrylic emulsion has emerged as a leading material due to its excellent balance of performance, versatility, and environmental compatibility. Wa...
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What is the Manufacturing Process for Hot-Melt Pressure-Sensitive Adhesives
- 2026-04-03 15:56:22
- admin
If you are a manufacturer of—or a user of—hot-melt adhesives, you are well aware that while most hot-melt pressure-sensitive adhesives (HMPSAs) appear virtually identical in appearance, the specific manufacturing processes employed during their blending result in distinct sets of advantages and disadvantages. Hot-melt pressure-sensitive adhesives are complex mixtures composed of SBC (Styrene-Butad...
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What is a Water-based Acrylic Emulsion
- 2026-04-08 11:24:34
- admin
Water-based acrylic emulsion is a polymeric emulsion material that utilizes water as its dispersion medium. It is produced through an emulsion polymerization reaction involving vinyl monomers, primarily acrylic esters. Key Features: Environmental Friendliness: With water serving as the dispersion medium, it features extremely low levels of Volatile Organic Compounds (VOCs); it is no...
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What Are the Common Coating Methods for Hot Melt Adhesives , Pressure Sensitive Adhesives, and Solvent-Based Adhesives
- 2026-04-10 14:36:19
- admin
1. Hot Melt Adhesives – Coating Methods Hot melt adhesives are 100% solids, require heating to melt, and solidify upon cooling. They are solvent‑free and cure quickly, making them ideal for high‑speed production. Roll Coating How it works: Molten adhesive is transferred to the substrate via a heated gravure or applicator roll. Coating thickness is controlled by the roll’s surface pattern. Applicat...