Invention Grant
- Patent Title: Method for preparing white carbon black modified by silane coupling agent
- Patent Title (中): 硅烷偶联剂改性白炭黑的制备方法
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Application No.: US13812956Application Date: 2011-07-29
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Publication No.: US09120928B2Publication Date: 2015-09-01
- Inventor: Li Liu , Fa zhong Zhang , Ying yan Mao , Yan Li , Shui Hu , Shi peng Wen , Li qun Zhang
- Applicant: Li Liu , Fa zhong Zhang , Ying yan Mao , Yan Li , Shui Hu , Shi peng Wen , Li qun Zhang
- Applicant Address: CN Beijing
- Assignee: Beijing University of Chemical Technology
- Current Assignee: Beijing University of Chemical Technology
- Current Assignee Address: CN Beijing
- Agency: RatnerPrestia
- Priority: CN201110147594 20110602
- International Application: PCT/CN2011/077769 WO 20110729
- International Announcement: WO2012/162937 WO 20121206
- Main IPC: C09C1/30
- IPC: C09C1/30 ; B82Y30/00

Abstract:
The invention relates to a method for preparing silica modified by a silane coupling agent. The method comprises the following steps: preparing a kind of coupling agent sol solution by mixing the solvent, water, catalyst and coupling agent; uniformly dispersing silica into the sol solution by means of ultrasonic dispersion or shear dispersion to achieve a turbid solution with uniform dispersion and ideal particle size; and then stirring the turbid solution at a constant speed to make the coupling agent sol reacting with silica to prepare highly hydrophobic silica modified by the coupling agent through controlling the temperature and reaction time. The coupling agent sol solution is obtained by a sol-gel process and silica is uniformly dispersed in the coupling agent sol solution through combined action of various dynamic means to ensure the sufficient reaction between silica and coupling agent, thus to obtain silica modified by the coupling agent.
Public/Granted literature
- US20130131357A1 METHOD FOR PREPARING WHITE CARBON BLACK MODIFIED BY SILANE COUPLING AGENT Public/Granted day:2013-05-23
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