Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel
碩士 === 國立臺灣師範大學 === 化學系 === 103 === This main goal of thesis is to prepare two anionic superabsorbent hydrogel, polyacrylic acid / polyacryl amide ( P(AA/AM) ) and polyacrylic acid / polyacryl amide / fly ash ( P(AA/AM)/FA ). Ammmonium persulfate ( APS) and N,N’methylene bisacrylamide (MBA) were...
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ndltd-TW-103NTNU50650792016-12-19T04:14:50Z http://ndltd.ncl.edu.tw/handle/39301253943970347119 Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel 聚(丙烯酸/丙烯醯胺)/飛灰複合水膠的合成和性質研究 Lan, Han-Zhong 藍漢中 碩士 國立臺灣師範大學 化學系 103 This main goal of thesis is to prepare two anionic superabsorbent hydrogel, polyacrylic acid / polyacryl amide ( P(AA/AM) ) and polyacrylic acid / polyacryl amide / fly ash ( P(AA/AM)/FA ). Ammmonium persulfate ( APS) and N,N’methylene bisacrylamide (MBA) were used as an initiator and crosslinking agent, respectively. Using FT-IR to identify structure, surface porosity is observed by SEM. The parameters what could be effected experiment are monomer ratio, initiator dosage, crosslinker dosage, reaction temperature and proportion of fly ash. We measure water absorbency of hydrogel in water, saline solution and variety of different situation and then test the mechanical properties, including compressive strength and water absorption under load (AUL). We evaluate if P(AA/AM)/FA hydrogel whose additive quantity, proportion of fly ash and particle size is reasonablely applied to the grout and cement mortar as a self-curing agent. Then we researched hydration degree, cracking index, and setting time in grout. We calculated weight-loss, water retention,compressive strength, internal humidity, and drying shrinkage in cement mortar. The result indicate that P(AA/AM)/FA hydrogel in the optimum reaction condition, the water absorbency is 386 g/g in water, and 56, 26 g/g in 0.1M NaCl(aq) and 0.1M CaCl2(aq), repectively. The compressive strength is 47.5 (Kgf / cm2). When we add P(AA/AM)/FA hydrogel into mortar as self-curing reagent, the optimum dosage, particle size and proportion of fly ash is 0.2 wt%, 0.082 mm and 10 wt%, respectively, in this condition, improve the performance of weight-loss, compressive strength, internal humidity, drying shrinkage and craking formation. All the performance is better than the control group without P(AA/AM)/FA hydrogel. Hsu, Kung-Chung 許貫中 2015 學位論文 ; thesis 136 zh-TW |
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碩士 === 國立臺灣師範大學 === 化學系 === 103 === This main goal of thesis is to prepare two anionic superabsorbent hydrogel, polyacrylic acid / polyacryl amide ( P(AA/AM) ) and polyacrylic acid / polyacryl amide / fly ash ( P(AA/AM)/FA ). Ammmonium persulfate ( APS) and N,N’methylene bisacrylamide (MBA) were used as an initiator and crosslinking agent, respectively. Using FT-IR to identify structure, surface porosity is observed by SEM. The parameters what could be effected experiment are monomer ratio, initiator dosage, crosslinker dosage, reaction temperature and proportion of fly ash. We measure water absorbency of hydrogel in water, saline solution and variety of different situation and then test the mechanical properties, including compressive strength and water absorption under load (AUL).
We evaluate if P(AA/AM)/FA hydrogel whose additive quantity, proportion of fly ash and particle size is reasonablely applied to the grout and cement mortar as a self-curing agent. Then we researched hydration degree, cracking index, and setting time in grout. We calculated weight-loss, water retention,compressive strength, internal humidity, and drying shrinkage in cement mortar.
The result indicate that P(AA/AM)/FA hydrogel in the optimum reaction condition, the water absorbency is 386 g/g in water, and 56, 26 g/g in 0.1M NaCl(aq) and 0.1M CaCl2(aq), repectively. The compressive strength is 47.5 (Kgf / cm2).
When we add P(AA/AM)/FA hydrogel into mortar as self-curing reagent, the optimum dosage, particle size and proportion of fly ash is 0.2 wt%, 0.082 mm and 10 wt%, respectively, in this condition, improve the performance of weight-loss, compressive strength, internal humidity, drying shrinkage and craking formation. All the performance is better than the control group without P(AA/AM)/FA hydrogel.
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author2 |
Hsu, Kung-Chung |
author_facet |
Hsu, Kung-Chung Lan, Han-Zhong 藍漢中 |
author |
Lan, Han-Zhong 藍漢中 |
spellingShingle |
Lan, Han-Zhong 藍漢中 Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
author_sort |
Lan, Han-Zhong |
title |
Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
title_short |
Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
title_full |
Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
title_fullStr |
Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
title_full_unstemmed |
Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
title_sort |
study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel |
publishDate |
2015 |
url |
http://ndltd.ncl.edu.tw/handle/39301253943970347119 |
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