Carbon fiber impregnating adhesive and preparation method thereof

A technology of impregnating glue and carbon fiber, which is applied in the field of construction material preparation, can solve the problems of low viscosity of carbon fiber impregnating glue, shedding of carbon fiber sheets, poor bonding performance, etc., and achieve excellent physical and mechanical properties, enhanced bonding performance, Excellent wettability and permeability

CN108727998AInactive Publication Date: 2018-11-02NANJING TELESUN S & T IND
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-11-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of preparation and application of building materials and in particular discloses a carbon fiber impregnating adhesive. The carbon fiber impregnating adhesive is prepared from a component A and a component B, wherein the component A and the component B are mixed according to the mixing ratio of 4 to 1 based on weight; the component A is prepared from thefollowing components in parts by weight: 90 to 110 parts of epoxy resin, 5 to 25 parts of diluting agent, 10 to 30 parts of toughening agent, 0.5 to 1.5 parts of de-foaming agent, 2 to 6 parts of gaseous silicon and 6 to 26 parts of activated calcium powder; the component B is prepared from the following components in parts by weight: 25 to 45 parts of curing agent, 1 to 5 parts of accelerant, 0.5 to 1.5 parts of coupling agent and 0.125 to 0.75 part of color paste. The carbon fiber impregnating adhesive disclosed by the invention has the beneficial effects that less activated calcium powderis added into the component A, so that the viscosity and thixotropy of the carbon fiber impregnating adhesive are increased; the adhesion performance is enhanced and the mechanical property of an adhesive body is not changed; the carbon fiber impregnating adhesive has high strength and excellent wetting property and permeability; a cured adhesive layer has good physical and mechanical properties,is tough and elastic and has excellent anti-ageing performance, acid and alkali resistance and water resistance; the carbon fiber impregnating adhesive does not contain a volatile solvent and is suitable for reinforcing and repairing a concrete structure by various fiber sheet materials.
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Description

technical field

[0001] The invention belongs to the technical field of preparation and application of building materials, and in particular relates to a carbon fiber impregnated glue and a preparation method thereof. Background technique

[0002] Carbon fiber impregnated glue is mainly used in the structural bonding construction of carbon fiber sheets and concrete, steel components, and masonry components, or the bonding construction of carbon fiber sheets in reinforced concrete tension members.

[0003] During the construction process, the concrete surface of the reinforced member is required to be dry and flat, so that the pasted carbon fiber sheet will not fall off. However, due to various reasons in the actual construction process, the concrete surface is often wet and uneven, which will lead to the paste. The sheet falls down before the colloid is fully cured, resulting in material waste and increased construction volume. How to improve the adhesion of carbon fiber imp...

Examples

Embodiment 1

[0024] A carbon fiber impregnated glue of the present invention is composed of component A and component B, wherein the mixing ratio of component A and component B by weight is 4:1, and component A by weight includes ring 90-110 parts of oxygen resin, 5-25 parts of diluent, 10-30 parts of toughening agent, 0.5-1.5 parts of defoamer, 2-6 parts of gas silicon, 6-26 parts of active calcium powder; the B component By weight, it includes 25-45 parts of curing agent, 1-5 parts of accelerator, 0.5-1.5 parts of coupling agent, and 0.125-0.75 parts of color paste; the total amount of the A component is 113.5-188.5 parts, and the B group The total amount of servings is 28.4-47.1 servings.

[0025] The preparation method of a kind of carbon fiber impregnated glue of the present invention comprises the following steps, step 1, A component is mixed, and the epoxy resin raw material after weighing and measuring, diluent raw material, toughening agent raw material, defoaming agent raw materi...

Embodiment 2

[0028] A carbon fiber impregnated glue of the present invention is composed of component A and component B, wherein the mixing ratio of component A and component B by weight is 4:1, and component A by weight includes ring 95 parts of epoxy resin, 10 parts of thinner, 15 parts of toughening agent, 1 part of defoamer, 3 parts of fumed silicon, 10 parts of active calcium powder; the B component includes 30 parts of curing agent, accelerator 2 parts, 1 part of coupling agent, 0.5 parts of color paste; the total amount of the A component is 134 parts, and the total amount of the B component is 33.5 parts.

[0029] The preparation method of a kind of carbon fiber impregnated glue of the present invention comprises the following steps, step 1, A component is mixed, and the epoxy resin raw material after weighing and measuring, diluent raw material, toughening agent raw material, defoaming agent raw material are added respectively High-speed dispersing kettle Ⅰ disperses and stirs. S...

Embodiment 3

[0032]A carbon fiber impregnated glue of the present invention is composed of component A and component B, wherein the mixing ratio of component A and component B by weight is 4:1, and component A by weight includes ring 100 parts of epoxy resin, 15 parts of diluent, 20 parts of toughening agent, 1 part of defoamer, 4 parts of gas silicon, 16 parts of active calcium powder; The B component includes 35 parts of curing agent, accelerator 2.5 parts, 1 part of coupling agent, and 0.5 parts of color paste; the total amount of the A component is 156 parts, and the total amount of the B component is 39 parts.

[0033] The preparation method of a kind of carbon fiber impregnated glue of the present invention comprises the following steps, step 1, A component is mixed, and the epoxy resin raw material after weighing and measuring, diluent raw material, toughening agent raw material, defoaming agent raw material are added respectively High-speed dispersing kettle Ⅰ disperses and stirs. ...