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題名 | 乙酼丙酮系封鎖型水性PU之合成與性質=Synthesis and Properties of Acetyl Acetone-Blocked Waterborne Polyurethane |
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作者 | 陳文桐; | 書刊名 | 紡織中心期刊 |
卷期 | 8:1 1998.01[民87.01] |
頁次 | 頁76-80 |
分類號 | 478.1 |
關鍵詞 | 封鎖型水性PU; 抗皺角; Blocked aqueous polyurethane; Wrinkle-resistant angle; |
語文 | 中文(Chinese) |
中文摘要 | 乙醯丙酮系封鎖型水性PU樹脂之合成是以共聚己二酸丁二醇己二醇酯,不同分子量之聚丙二醇及以polyether diol為內乳化劑與二環己基甲烷44’-二異氰酸鹽(H12MDI)進行聚加成反應,先形成PU預聚合物,再以乙醯丙酮進行封鎖反應,最後以蒸餾水進行水分散,形成固成份25%之封鎖型水性PU分散液。本案列水性PU乳液配合各種加工助劑,如平滑劑、柔軟劑、交聯劑及觸媒,以壓吸-烘乾-交聯之加工方式,進行棉織品防皺加工,其抗皺角可達285度以上,強力保持率70%以上,以及甲醛含量在60ppm以下。 |
英文摘要 | Nonionic blocked aqueous polyurethanes (PV) based on acetyl acetone were synthesized from the polyaddition of 44'-methylenebis(cyclohexy l isocyanate) with polyols such as copolybutylene hexylene adipate, various kinds of polypropylene glycols, and polyether diol(PED) served as an internal emulsifier. The obtained polyurethane prepolymers were then blocked with acetyle acetone and then dispersed with distilled water to afford blocked aqueous polyurethane with solid content 25%. The blocked aqueous polyurethanes were formulate with processing additives such as softener、smoothing agent、crosslinking agent, and catalyst to achieve wrinkle-resistant application for cotton fabrics through pad-dry-cure procedure. The wrinkle recovery angles and strength retention were above 285 and 70%, respectively. The content of free formaldehyde was below 60 ppm. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。