Introduction
Sanitaryware is a critical component of building ceramics, demanding high standards for material environmental friendliness, mechanical strength, and surface finish. Traditional production processes often rely on solvent-based or high-temperature solid binders, leading to high VOC emissions, complex processes, and significant energy consumption. With increasingly stringent environmental regulations and growing demand for green manufacturing, water-soluble binders are gaining significant attention in the industry.
Properties of Water-Soluble Binders
Environmental Friendliness: Utilizing water as a solvent, these binders are free from volatile organic compounds (VOC), complying with environmental regulations such as the EU REACH and RoHS directives, and reducing harmful gas emissions during production.
Process Adaptability: Easily soluble in water, they can be quickly and uniformly dispersed in ceramic slurries or glazes, suitable for traditional processes like slip casting and pressing, without requiring significant adjustments to existing production lines.
Performance Enhancement: Increases green body strength (15-25% improvement), reducing breakage rates during transportation and processing; optimizes glaze adhesion, minimizing cracking and peeling.
Sintering Compatibility: Completely decomposes during high-temperature firing (1100-1300°C) without leaving behind carbon residue or harmful substances, preventing glaze defects like pinholes and blisters.
Application Scenarios
Raw Material Mixing: Add the binder at a ratio of 0.5% to 2.0% (by dry weight) to the ceramic slurry, thoroughly mixing with a ball mill to ensure uniform coating of the particles. Enhances powder flowability, improving body density and mechanical strength.
Glaze Preparation: Incorporate 0.1% to 0.5% binder into the glaze to improve suspension and adhesion, especially for spraying or dipping processes. Reduces glaze cracking and improves gloss and smoothness.
Slip Casting: In plaster mold slip casting, the binder reduces the thixotropy of the slurry, extending its flow time and increasing casting efficiency. Maintain slurry water content at 30-35%, adjusting binder concentration based on slurry viscosity.
Water-soluble binders, with their environmental friendliness, process adaptability, and performance advantages, provide an efficient and green solution for the sanitaryware industry. With the advancement of “Dual Carbon” goals and increasing consumer focus on healthy home environments, the market demand for water-soluble binders will continue to grow. TopTime Ceramics Based on our specific manufacturing processes, we verified the suitability through small-scale and pilot-scale trials, and optimized the formula to maximize economic benefits and environmental value.