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author:

刘蓉凯 (刘蓉凯.) [1] | 方润 (方润.) [2] | 程贤甦 (程贤甦.) [3]

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CSCD

Abstract:

用固体酸催化剂催化酶解木质素的磺化反应,得到磺化产物SEHL,再用固体碱催化SEHL进一步进行磺甲基化反应,得到产物SH-SEHL。研究了酶解木质素磺化衍生物作为水泥减水剂在水泥净浆中的性能和减水作用机理,并探索了固体催化剂的重复使用性能。结果表明:水灰比为0.35时,掺有0.5%的SEHL和SH-SEHL的基准水泥净浆流动度分别达到205 mm和260 mm,120 min后流动度达到184 mm和223 mm;SEHL和SH-SEHL对各种水泥有良好的适应性;掺有0.25%的SEHL和SH-SEHL的水泥砂浆的减水率分别为17.0%和20.5%,28天的抗压强度比分别为112.4%和122...

Keyword:

ζ-电位 净浆流动度 吸附量 固体催化剂 酶解木质素

Community:

  • [ 1 ] 福州大学材料科学与工程学院

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Source :

纤维素科学与技术

Year: 2011

Issue: 02

Volume: 19

Page: 16-23

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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