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A kind of fluorine-containing organosilicon polymer modified epoxy resin mastic and preparation method thereof

A technology of epoxy resin mastic and fluorosilicon polymer, which is applied in the field of building materials, can solve the problems of insufficient toughness of epoxy resin mastic, high linear expansion coefficient, poor anti-corrosion and pollution resistance, etc., and achieve good stress dispersion and chain flexibility Good, small steric hindrance

Active Publication Date: 2022-04-22
JIANGSU SOBUTE NEW MATERIALS +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects in the prior art, that is, the problems of insufficient toughness of epoxy resin cement, high linear expansion coefficient and poor anti-corrosion and stain resistance, and provide a kind of fluorine-containing organic silicon polymer modified epoxy resin cement Material

Method used

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  • A kind of fluorine-containing organosilicon polymer modified epoxy resin mastic and preparation method thereof
  • A kind of fluorine-containing organosilicon polymer modified epoxy resin mastic and preparation method thereof
  • A kind of fluorine-containing organosilicon polymer modified epoxy resin mastic and preparation method thereof

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preparation example Construction

[0045] The preparation method of this fluorine-containing organosilicon polymer modified epoxy resin mastic comprises the following steps:

[0046] Prepare A component according to the following steps: (1) Pre-react epoxy-based fluorosilicon polymer and amino POSS in toluene solution at 90±5°C for 10h-24h, and then vacuum remove it at 80°C-100°C Toluene solvent to obtain viscous fluorosilicon polymer grafted POSS.

[0047] (2) Mix epoxy resin, diluent, fluorosilicon polymer grafted POSS, and thixotropic agent according to a predetermined mass ratio, and use a planetary mixer with a vacuum system for high-speed dispersion, and the dispersion speed is 800r / min~2000r / min, the dispersion temperature is controlled at 20°C to 50°C, and the dispersion time is 30min to 60min to obtain a resin premix.

[0048] (3) Add the predetermined mass fraction of quartz powder into the resin premix prepared in step (2), heat the material to 40°C~60°C, and turn on the vacuum system to carry out ...

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Abstract

The invention belongs to the technical field of building materials, and in particular discloses a fluorine-containing organosilicon polymer modified epoxy resin mastic and a preparation method thereof. The present invention forms a "multi-arm" structure by grafting epoxy-based fluorosilicon polymer onto T8 amino POSS or T6 amino POSS, which can play a good role in the three-dimensional cross-linked network structure of epoxy resin formed during application. Dispersion effect, thereby improving the impact toughness and deformation ability of the fluorine-containing silicone polymer modified epoxy resin cement; at the same time, modifying the epoxy resin with fluorine-containing fluorine-silicon polymer grafted POSS can also make the ring Oxygen resin cement has more excellent tensile strength, elongation at break, compressive strength and impact strength. The surface of the fluorine-containing organosilicon polymer modified epoxy resin mastic provided by the present invention has obvious hydrophobic effect, better water repellency, and lower water absorption rate, thereby enhancing the medium corrosion resistance of the material and improving the epoxy resin mastic Durability of materials in concrete protection against corrosion applications.

Description

technical field [0001] The invention belongs to the technical field of building materials, and specifically relates to a fluorine-containing organosilicon polymer modified epoxy resin mastic and a preparation method thereof. Background technique [0002] Due to the advantages of high hardness and good adhesion, epoxy resin cement is widely used in the repair of concrete building defects, but it also has poor toughness, high water absorption, poor corrosion resistance, and poor deformation ability. It is prone to many problems such as cracking, peeling, peeling, etc., resulting in reduced protection durability. These defects limit its further application in the repair and protection of concrete defects that require high durability such as anti-corrosion and stain resistance. [0003] For example, the Chinese invention patent of an epoxy mastic and its preparation method (CN 201510668642.3) discloses a kind of epoxy resin mastic, which includes component A and component B, wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/32C04B111/20C04B111/27
CPCC04B26/32C04B2111/27C04B2111/20C04B14/06C04B24/281C04B24/023C04B24/121C04B24/122C04B14/066C04B2103/0068C04B24/128
Inventor 李波张小冬沈志明孙德文卢立群冉千平刘加平朱剑南王中华
Owner JIANGSU SOBUTE NEW MATERIALS
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