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A kind of fluorine-containing silicone polymer modified furfural acetone epoxy grouting material and preparation method thereof

A technology of acetone epoxy and grouting materials, which is applied in the field of building materials, can solve problems such as poor compatibility and low-temperature toughness, and achieve the effects of good bonding strength, good low-temperature performance, and avoiding phase separation

Active Publication Date: 2017-07-25
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of poor compatibility and low-temperature toughness of epoxy grouting material systems in the prior art, the present invention provides a fluorine-containing organic silicon with good compatibility between systems, excellent mechanical properties, low-temperature toughness and resistance to cold and heat cycles Polymer modified furfural acetone epoxy grouting material and preparation method thereof

Method used

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  • A kind of fluorine-containing silicone polymer modified furfural acetone epoxy grouting material and preparation method thereof
  • A kind of fluorine-containing silicone polymer modified furfural acetone epoxy grouting material and preparation method thereof
  • A kind of fluorine-containing silicone polymer modified furfural acetone epoxy grouting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of Fluorinated Silicone Polymer PMSF1

[0042] Add 350g of γ-trifluoropropylmethylcyclotrisiloxane, 50g of octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl base)-1,1,3,3-Tetramethyldisiloxane 50g (the mass ratio of the three is 100:14.3:14.3), aminosilane coupling agent N-β-aminoethyl-γ-aminopropyl 12g of methyldiethoxysilane (the total mass of the aforementioned materials is 2.64wt%) and 0.27g of tetramethylammonium hydroxide (the total mass of the aforementioned materials is 0.06wt%), the temperature is raised to 100°C under nitrogen protection, and the reaction is carried out for 6h; Low boilers and solvents are used to obtain amino-terminated and side-amino fluorine-containing silicone polymers, denoted as PMSF1. The weight-average molecular weight of the prepared fluorine-containing silicone polymer was detected by gel permeation chromatography, and the result was 4834g / mol; the amino group content of the fluorine-containing silicone polymer was mea...

Embodiment 2

[0048] Preparation of Fluorinated Silicone Polymer PMSF2

[0049] Add 280g of γ-trifluoropropylmethylcyclotrisiloxane, 120g of octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl base)-1,1,3,3-tetramethyldisiloxane 10g (the mass ratio of the three is 100:42.9:6.7), aminosilane coupling agent γ-aminopropylmethyldiethoxysilane 10g (2.3wt% of the total mass of the aforementioned materials) and 0.64g of tetramethylammonium hydroxide (0.15wt% of the total mass of the aforementioned materials), the temperature was raised to 90°C under nitrogen protection, and the reaction was carried out for 8h; Amino and pendant amino fluorine-containing silicone polymers, denoted as PMSF2, have a weight-average molecular weight of 9876 g / mol and an amino content of 0.81 wt%. Through the detection and analysis of proton nuclear magnetic spectrum, the structure of the product is:

[0050]

[0051] The H NMR spectrum data are as follows:

[0052] 1 H NMR (300MHz, CDCl 3 )δ0~0.21ppm(-CH 3 ),0...

Embodiment 3

[0055] Preparation of Fluorinated Silicone Polymer PMSF3

[0056] Add 150g of γ-trifluoropropylmethylcyclotrisiloxane, 250g of octamethylcyclotetrasiloxane, 1,3-bis(3-aminopropyl base)-1,1,3,3-tetramethyldisiloxane 25g (the mass ratio of the three is 100:167:8.9), tetramethylammonium hydroxide 1.0g (the total mass of the aforementioned materials is 0.24wt%), The temperature was raised to 110°C under the protection of nitrogen, and the reaction was carried out for 4 hours; the low boilers and solvents were removed by distillation under reduced pressure, and the fluorine-containing silicone polymer with terminal and side amino groups was obtained, which was denoted as PMSF3, with a weight average molecular weight of 6484g / mol and an amino group content of 0.58 wt%.

[0057] Through the detection and analysis of proton nuclear magnetic spectrum, the structure of the product is:

[0058]

[0059] The H NMR spectrum data are as follows:

[0060] 1 H NMR (300MHz, CDCl 3 )δ0~...

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Abstract

The invention discloses a fluorine-containing silicone polymer modified furfural acetone epoxy grouting material and a preparation method thereof. The epoxy grouting material includes fluorine-containing silicone polymer modified furfural with a mass ratio of 100:(12-35) Acetone epoxy grouting component (A) and curing agent component (B); fluorine-containing silicone polymer modified furfural acetone epoxy grouting component (A) by mass parts, including: bisphenol A type epoxy 100 parts of resin; 10-30 parts of fluorine-containing silicone polymer; 0-20 parts of dioctyl phthalate; 45-75 parts of furfural; 30-50 parts of acetone; 3-5 parts of inorganic strong alkali aqueous solution; curing agent Component (B) is a polyamine. The above-mentioned fluorine-containing silicone polymer modified furfural acetone epoxy grouting material has good compatibility between systems, no phase separation, strong mechanical properties, good low-temperature toughness, and excellent resistance to cold and heat cycles.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a fluorine-containing organosilicon polymer modified furfural acetone epoxy grouting material and a preparation method thereof. Background technique [0002] As one of the indispensable materials in the field of building repair and reinforcement, epoxy grouting material has a wide range of applications. Generally speaking, epoxy grouting materials with a low viscosity furfural-acetone dilution system are required for the repair of fine cracks in buildings. When epoxy grouting materials are used for building reinforcement, the building as the main body of the mechanical load must have strong mechanical fatigue resistance, and must have sufficient bearing capacity for instantaneous impact loads and cyclic loads. Therefore, epoxy grouting materials for crack reinforcement are required to have not only high strength but also high toughness. The epoxy grouting material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L83/08C08K5/12C08G59/50
Inventor 冉千平李波孙德文万赟尹浩刘玉亭杨冲
Owner JIANGSU SOBUTE NEW MATERIALS