Premium
Water‐Soluble Binder System Based on Poly‐Methyl Methacrylate and Poly‐Ethylene Glycol for Injection Molding of Large‐Sized Ceramic Parts
Author(s) -
Yang Xianfeng,
Jia Cui,
Xie Zhipeng,
Liu Wei,
Liu Qicheng
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2011.02745.x
Subject(s) - materials science , swelling , polyethylene , environmental stress cracking , molding (decorative) , polyethylene glycol , composite material , polymer , cracking , ceramic , polymer chemistry , chemical engineering , stress corrosion cracking , alloy , engineering
Water debinding technique was applied in preparing injection molded large‐sized parts. The results showed that the origin of cracking and blistering defects was the swelling from polyethylene glycols of folded chain crystal. The combination of polyethylene glycols with molecular weight 600 and 4000 could ensure both debinding quality and green body strength. It was shown that higher than 20% of insoluble backbone binder was sufficient to resist the stress from swelling. For the compact with length sale of 3.14 mm (the ratio of volume to surface area), approximately 65% of polyethylene glycols were leached after 22 h at 40°C.