PVA高分子添加劑對精密鑄造陶殼模泥漿性能之影響

Effects of Polyvinyl Alcohol Polymer Additive on the Properties of Slurry for Ceramic Shell Mold

莊勝傑(S. J. Zhuan) ； 吳哲豪(Z. H. Wu) ； 楊國和(Ko-Ho Yang)

《鑄造工程學刊》 33卷4期 (2007/12) Pp. 9-16

https://doi.org/10.29809/JTFS.200712.0002

摘要

本研究在製作陶殼模用之面漿與背漿中，以PVA高分子為添加劑，探討其對泥漿基本性能及流變性能的影響，並與未添加添加劑之泥漿性能作比較。
研究結果顯示：對泥漿混合的影響，PVA添加於面漿與背漿時，可降低泥漿達到穩定時間。對泥漿pH 值的影響，泥漿的pH值有降低的趨勢。對泥漿流變性的影響，PVA高分子可延續泥漿壽命。對泥漿水分散失速率的影響，可使泥漿水分散失速率降低。

關鍵字

精密鑄造 ； 泥漿 ； PVA添加劑

並列摘要

The effects of the PVA polymer additive on the basic and rheological properties of the primary and backup slurries have been studied. Meanwhile, the properties of the no-PVA polymer added slurry have also been studied and compared.
Experimental results showed as follows; (1) the time required to reach the slurry stability were reduced; (2) the slurry pH values were lowered; (3) the life of slurry were extended; (4) the slurry water content remained stable.

並列關鍵字

investment casting ； slurry ； PVA additive