Article(id=1319236902440514222, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236892848148894, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220262, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1649260800000, receivedDateStr=2022-04-07, revisedDate=1649865600000, revisedDateStr=2022-04-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1792460187777, onlineDateStr=2026-10-20, pubDate=1668873600000, pubDateStr=2022-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792460187777, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792460187777, creator=13701087609, updateTime=1792460187777, updator=13701087609, issue=Issue{id=1319236892848148894, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='11', pageStart='2809', pageEnd='3090', issueExtLink='null', onlineDate='null', pubDate='1668873600000', pubDateStr='2022-11-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792460185491, creator='13701087609', updateTime=1792460700564, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319239053275411177, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236892848148894, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319239053275411178, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236892848148894, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2818, endPage=2825, ext={EN=ArticleExt(id=1319236902755087023, articleId=1319236902440514222, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effect of Organosilane-Modified Polycarboxylate Superplasticizers on Grain Size of Calcium Silicate Hydrate Seeds, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

In order to obtain stable and dispersed calcium silicate hydrate (C-S-H) crystal nucleus, improve its crystal nucleus-inducing effect on cement hydration, and realize the efficient utilization of cement clinker. Polycarboxylate superplasticizers (PCE) with different proportions of acrylic acid (AA) and silane group (KH570) were prepared via free radical polymerization to disperse calcium silicate hydrate (C-S-H) seeds. The corresponding C-S-H/PCE seeds were synthesized by a solution precipitation method. The grain size/size distribution, the stability of C-S-H/PCE seeds and the bonding mode of PCE on C-S-H interface were investigated. The results show that the PCE with an appropriate proportion of KH570 can effectively control the grain size of C-S-H/PCE seeds. The adsorption mode of PCE on C-S-H surface changes from Ca2+ complexation to a more stable Si—O—Si chemical bond, and the grain size of C-S-H/PCE seeds firstly decreases and then increases with the increase of KH570 ratio. At a KH570 to AA ratio of 1, the adsorption layer thickness of PCE on the surface of C-S-H is 2.5 nm, the grain size of C-S-H/PCE seeds is 60 nm and the stability is optimum. The PCE undergoes an intramolecular dehydration condensation process under alkaline condition with further increasing the proportion of KH570, forming a reticulated silicone resin structure, which is unfavorable for the regulation of grain size of C-S-H/PCE seeds.

, authors=Xuechuan WANG1, Shanshan QIAN1, Ziming WANG2, Xiao LIU2, Chunyang ZHENG1, authorsList=Xuechuan WANG, Shanshan QIAN, Ziming WANG, Xiao LIU, Chunyang ZHENG, authorCompany=null, correspAuthors=null, authorNote=

WANG Xuechuan (1991-), male, Master, Engineer. E-mail:

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为了获得稳定分散的水化硅酸钙(C-S-H)晶核,提高其对水泥水化的晶核诱导效应,实现水泥熟料的高效利用,采用自由基聚合制备出了结构中含有不同比例丙烯酸(AA)和硅烷基团(KH570)的聚羧酸分散剂(PCE),通过溶液沉淀法合成了相应C-S-H/PCE晶核。分别测试了C-S-H/PCE晶核粒径分布、稳定性、晶核界面结合方式。结果表明,硅烷减水剂显著增加了C-S-H/PCE晶核的稳定性。在PCE分子结构中引入适当比例的KH570能有效调控C-S-H/PCE晶核粒径,随着KH570比例的增加,PCE在C-S-H表面的吸附方式由Ca2+络合向更加稳定的Si—O—Si化学键合方式转变,C-S-H/PCE晶核粒径先减小后增大。当KH570:AA比例为1时,PCE在C-S-H表面的吸附层厚度最大(2.5 nm),制备的C-S-H/PCE晶核粒径最小(60 nm)和稳定性最佳,继续增加KH570比例,PCE在碱性条件下发生PCE分子内脱水缩合过程,形成网状的硅树脂结构,对C-S-H/PCE晶核粒径调控不利。

, authors=王学川1, 钱珊珊1, 王子明2, 刘晓2, 郑春扬1, authorsList=王学川, 钱珊珊, 王子明, 刘晓, 郑春扬, authorCompany=null, correspAuthors=null, authorNote=

王学川(1991—),男,硕士,工程师。

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硅烷减水剂对水化硅酸钙晶核粒径调控
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王学川 1 , 钱珊珊 1 , 王子明 2 , 刘晓 2 , 郑春扬 1
硅酸盐学报 | 研究论文 2022,50(11): 2818-2825
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硅酸盐学报 |研究论文 2022 , 50 (11) : 2818 -2825
硅烷减水剂对水化硅酸钙晶核粒径调控
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王学川1 , 钱珊珊1, 王子明2, 刘晓2, 郑春扬1
作者信息
  • 1.江苏奥莱特新材料股份有限公司,江苏省(奥莱特)混凝土高分子助剂工程技术研究中心,南京 211505
  • 2.北京工业大学材料与制造学部,北京 100124
作者简介:

王学川(1991—),男,硕士,工程师。

Effect of Organosilane-Modified Polycarboxylate Superplasticizers on Grain Size of Calcium Silicate Hydrate Seeds
Xuechuan WANG1 , Shanshan QIAN1, Ziming WANG2, Xiao LIU2, Chunyang ZHENG1
Affiliations
  • 1.Jiangsu China Railway ARIT New Materials Co., Ltd, Jiangsu Province Engineering Research Center (ARIT) of Concrete Polymer Additives, Nanjing 211505, China
  • 2.Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • WANG Xuechuan (1991-), male, Master, Engineer. E-mail:

出版时间: 2022-11-20 doi: 10.14062/j.issn.0454-5648.20220262
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为了获得稳定分散的水化硅酸钙(C-S-H)晶核,提高其对水泥水化的晶核诱导效应,实现水泥熟料的高效利用,采用自由基聚合制备出了结构中含有不同比例丙烯酸(AA)和硅烷基团(KH570)的聚羧酸分散剂(PCE),通过溶液沉淀法合成了相应C-S-H/PCE晶核。分别测试了C-S-H/PCE晶核粒径分布、稳定性、晶核界面结合方式。结果表明,硅烷减水剂显著增加了C-S-H/PCE晶核的稳定性。在PCE分子结构中引入适当比例的KH570能有效调控C-S-H/PCE晶核粒径,随着KH570比例的增加,PCE在C-S-H表面的吸附方式由Ca2+络合向更加稳定的Si—O—Si化学键合方式转变,C-S-H/PCE晶核粒径先减小后增大。当KH570:AA比例为1时,PCE在C-S-H表面的吸附层厚度最大(2.5 nm),制备的C-S-H/PCE晶核粒径最小(60 nm)和稳定性最佳,继续增加KH570比例,PCE在碱性条件下发生PCE分子内脱水缩合过程,形成网状的硅树脂结构,对C-S-H/PCE晶核粒径调控不利。

水化硅酸钙  /  晶核  /  聚羧酸减水剂  /  硅酸盐水泥  /  早期水化

In order to obtain stable and dispersed calcium silicate hydrate (C-S-H) crystal nucleus, improve its crystal nucleus-inducing effect on cement hydration, and realize the efficient utilization of cement clinker. Polycarboxylate superplasticizers (PCE) with different proportions of acrylic acid (AA) and silane group (KH570) were prepared via free radical polymerization to disperse calcium silicate hydrate (C-S-H) seeds. The corresponding C-S-H/PCE seeds were synthesized by a solution precipitation method. The grain size/size distribution, the stability of C-S-H/PCE seeds and the bonding mode of PCE on C-S-H interface were investigated. The results show that the PCE with an appropriate proportion of KH570 can effectively control the grain size of C-S-H/PCE seeds. The adsorption mode of PCE on C-S-H surface changes from Ca2+ complexation to a more stable Si—O—Si chemical bond, and the grain size of C-S-H/PCE seeds firstly decreases and then increases with the increase of KH570 ratio. At a KH570 to AA ratio of 1, the adsorption layer thickness of PCE on the surface of C-S-H is 2.5 nm, the grain size of C-S-H/PCE seeds is 60 nm and the stability is optimum. The PCE undergoes an intramolecular dehydration condensation process under alkaline condition with further increasing the proportion of KH570, forming a reticulated silicone resin structure, which is unfavorable for the regulation of grain size of C-S-H/PCE seeds.

calcium silicate hydrate  /  seeds  /  polycarboxylate superplasticizers  /  portland cement  /  early hydration
王学川, 钱珊珊, 王子明, 刘晓, 郑春扬. 硅烷减水剂对水化硅酸钙晶核粒径调控. 硅酸盐学报, 2022 , 50 (11) : 2818 -2825 . DOI: 10.14062/j.issn.0454-5648.20220262
Xuechuan WANG, Shanshan QIAN, Ziming WANG, Xiao LIU, Chunyang ZHENG. Effect of Organosilane-Modified Polycarboxylate Superplasticizers on Grain Size of Calcium Silicate Hydrate Seeds[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (11) : 2818 -2825 . DOI: 10.14062/j.issn.0454-5648.20220262
  • 国家自然科学基金项目(51578025)
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doi: 10.14062/j.issn.0454-5648.20220262
  • 接收时间:2022-04-07
  • 首发时间:2026-10-20
  • 出版时间:2022-11-20
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  • 收稿日期:2022-04-07
  • 修回日期:2022-04-14
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国家自然科学基金项目(51578025)
作者信息
    1.江苏奥莱特新材料股份有限公司,江苏省(奥莱特)混凝土高分子助剂工程技术研究中心,南京 211505
    2.北京工业大学材料与制造学部,北京 100124
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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