Product丨Application of Expancel microspheres in artificial leather
Release time:
2023-05-26
1. Introduction to Expancel Microspheres
Expancel microspheres are extremely small spherical particles with a polymer shell encapsulating a gas. When heated, the gas pressure inside the microspheres increases, the thermoplastic shell softens, and the volume expands dramatically, while the gas remains inside the shell.
2. Product models and basic properties of Expancel microspheres
Expancel is used in artificial leather in the form of dry powder and unexpanded type, with different particle sizes and expansion temperatures. Models: 920 DU 20, 920 DU 40, 909DU 80, 920 DU 120, 093 DU 120, etc.
Expansion temperature - low temperature: below 150℃, medium temperature: 150-180℃, high temperature: above 180℃.
Small particle size surface effect: smooth surface, similar to suede leather; large particle size surface effect: rough surface, similar to suede leather.
3. Application of Expancel Microspheres in Synthetic Leather
Formula: PU resin (100 parts), MEK (50-70 parts), pigment, wood powder, wax, Expancel DU microspheres (2-6 parts), xylene, etc.
Storage performance of Expancel microspheres
Expancel has good storage stability and excellent chemical resistance. Solvents used in artificial leather, such as toluene, MEK, isopropyl alcohol, etc., can be used together with Expancel microspheres.
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Address: East Block, 3rd Floor, Mid-term Building, 2000 Zhongshan North Road, Putuo District, Shanghai
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