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Method for preparing modified graphene oxide and formula for preparing water-reducing mother liquor by using modified graphene oxide
The invention discloses a method for preparing modified graphene oxide and a formula for preparing water-reducing mother liquor by using the modified graphene oxide. The method comprises the following steps: S1, weighing a proper amount of graphene oxide for modification, preparing a 2g/l graphene oxide dispersion liquid, and performing dispersing for 2 hours under an ultrasonic condition; S2, weighing 1000 g of graphene oxide dispersion liquid, placing the graphene oxide dispersion liquid in a reaction kettle for stirring, and heating the graphene oxide dispersion liquid in a water bath to 70 DEG C; S3, weighing 4 g of vinyltriethoxysilane and and adding vinyltriethoxysilane into the reaction kettle in a dropwise adding mode, wherein dropwise adding time is 0.5 h; and S4, continuing reacting for 1 hour after dropwise adding, performing standing and cooling, and ending the test. According to the method and a formula in the invention, the graphene oxide is subjected to proper chemical modification, so the graphene oxide can participate in synthesis of polycarboxylic acid, a product can effectively weaken the tackifying effect of the graphene oxide on concrete, and the utilization rate of the graphene oxide is increased.
本发明公开了一种改性氧化石墨烯制备的方法及利用改性氧化石墨烯制备减水型母液的配方，包括以下步骤：S1、取适量用于改性的氧化石墨烯，配制出2g/l氧化石墨烯的分散液，在超声条件下分散2h；S2、称量1000g氧化石墨烯分散液，置于反应釜中搅拌，水浴加热至70℃；S3、称取4g乙烯基三乙氧基硅烷，通过滴加的方式加入反应釜中，滴加时间为0.5小时；S4、滴加完继续反应1小时，静置冷却，试验结束；此方法及配方，对氧化石墨烯作适当的化学改性，使其可以参与聚羧酸的合成，生成物可有效削弱氧化石墨烯对混凝土的增粘效应，并提升氧化石墨烯的利用率。
Method for preparing modified graphene oxide and formula for preparing water-reducing mother liquor by using modified graphene oxide
The invention discloses a method for preparing modified graphene oxide and a formula for preparing water-reducing mother liquor by using the modified graphene oxide. The method comprises the following steps: S1, weighing a proper amount of graphene oxide for modification, preparing a 2g/l graphene oxide dispersion liquid, and performing dispersing for 2 hours under an ultrasonic condition; S2, weighing 1000 g of graphene oxide dispersion liquid, placing the graphene oxide dispersion liquid in a reaction kettle for stirring, and heating the graphene oxide dispersion liquid in a water bath to 70 DEG C; S3, weighing 4 g of vinyltriethoxysilane and and adding vinyltriethoxysilane into the reaction kettle in a dropwise adding mode, wherein dropwise adding time is 0.5 h; and S4, continuing reacting for 1 hour after dropwise adding, performing standing and cooling, and ending the test. According to the method and a formula in the invention, the graphene oxide is subjected to proper chemical modification, so the graphene oxide can participate in synthesis of polycarboxylic acid, a product can effectively weaken the tackifying effect of the graphene oxide on concrete, and the utilization rate of the graphene oxide is increased.
本发明公开了一种改性氧化石墨烯制备的方法及利用改性氧化石墨烯制备减水型母液的配方，包括以下步骤：S1、取适量用于改性的氧化石墨烯，配制出2g/l氧化石墨烯的分散液，在超声条件下分散2h；S2、称量1000g氧化石墨烯分散液，置于反应釜中搅拌，水浴加热至70℃；S3、称取4g乙烯基三乙氧基硅烷，通过滴加的方式加入反应釜中，滴加时间为0.5小时；S4、滴加完继续反应1小时，静置冷却，试验结束；此方法及配方，对氧化石墨烯作适当的化学改性，使其可以参与聚羧酸的合成，生成物可有效削弱氧化石墨烯对混凝土的增粘效应，并提升氧化石墨烯的利用率。
Method for preparing modified graphene oxide and formula for preparing water-reducing mother liquor by using modified graphene oxide
一种改性氧化石墨烯制备的方法及利用改性氧化石墨烯制备减水型母液的配方
LIU YU (author) / WU JIANWEI (author) / LUO SHUAI (author) / SHEN HAIQI (author) / SONG JIANAN (author)
2021-07-16
Patent
Electronic Resource
Chinese
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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