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Solveless polyurethane coating adhesive can only be applied to low-end packaging products at the beginning, but with the continuous advancement of domestic and foreign scholars' research work, through the modification of polyols to improve its heat resistance, water resistance, oil resistance, etc., so that this situation has been improved. The introduction of multi-functional substances can increase the crosslinking density of polyurethane composite film, thus improving the heat resistance.
Guangdong Xinhui Chemical Company used poly1, 4-butanediol adipate, castor oil and isophorone diisocyanate as raw materials to synthesize the A component of solvent-free adhesive, and modified castor oil with silane coupling agent to prepare modified castor oil (which can improve water resistance, cooking resistance and thermal performance) and added it to the B component of solvent-free adhesive. A kind of two-component solvent-free aluminum foil cooking adhesive resistant to high temperature 135℃ was obtained.
November 22, 2024
November 22, 2024
In the post-printing decoration process of color printing for packaging, film coating and coating are the most common, and they are the most widely used processes for various printing companies. In...
From the 1970s on, foreign countries began to study two-component solvent-free adhesives. From the 1980s, the United States, Italy, France, and Germany have begun to use a large amount of...
Solvent-free two-component polyurethane adhesive technology The key to the technology of solvent-free two-component polyurethane adhesives is to synthesize the appropriate isocyanato-terminated main...
At present, although the overall development trend of adhesives is non-organic solvation, polyurethane solvent-based adhesives, due to their excellent process and adhesive properties, especially...
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November 22, 2024
November 22, 2024
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.