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Preparation method of basalt fiber reinforced polymer rebar

A technology of basalt fiber and composite rib, applied in the field of composite material preparation, can solve the problems of human skin irritation, glass fiber composite rib cannot be recycled or degraded naturally, and glass fiber consumes a lot of energy, etc., and achieves tensile and bending properties. Better, better tested, better in use

Inactive Publication Date: 2014-09-24
SICHUAN AEROSPACE WU YUAN COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The production process of glass fiber consumes a lot of energy, which is not conducive to energy conservation and environmental protection;
[0004] (2) The preparation process of glass fiber is harmful to the human body, especially the glass fiber wool will stimulate the human skin and cannot be decomposed or absorbed after being inhaled into the human body, which may cause lung diseases or even cancer;
[0005] (3) Environmental pollution is high, and glass fiber composite bars cannot be recycled or naturally degraded after being discarded, which is not conducive to environmental protection, etc.
[0007] Existing patent documents CN101531806 (a polyethylene phthalate / basalt fiber composite material and its preparation method 2009.9.16) and CN103044877A (a composite material containing modified basalt fiber and polymer and its preparation method 2013.04.17) all disclosed a preparation method of using basalt fiber as a reinforcement to make composite materials, but we performed performance tests on the composite products obtained by the above preparation method and continuous basalt fiber composite materials on the market. The results show that different process conditions have a great influence on the mechanical properties of composite materials, mainly in the composition of basalt fiber material system, the choice of fiber surface treatment and the structure of composite materials. It still needs to be strengthened, for this reason, the present invention specially proposes a preparation method of basalt fiber composite reinforcement

Method used

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Effect test

Embodiment 1

[0030] The invention proposes a method for preparing a basalt fiber composite bar. The basalt fiber composite bar is a fiber bar made of basalt fiber treated with a surface treatment agent, then impregnated with matrix resin and solidified.

[0031] The following is a further description of the technical solution of the present invention:

[0032] In the present invention, the basalt fiber is made of roving or composite twisted roving for textile processing, and its diameter can be selected as 7 μm. According to the weight ratio, the basalt fiber includes the following components:

[0033] SO 2 : 52.43%;

[0034] Al 2 o 3 : 18.33%;

[0035] CaO: 7.68%;

[0036] Fe 2 o 3 FeO: 10.53%;

[0037] Others (eg: Na 2 O, K 2 O, MgO, TiO 2 etc.): 11.03%.

[0038] The basalt fiber composite reinforcement involved in the present invention is made of basalt fiber with a specific component content. The basalt fiber is different from metal, glass and other carbide raw materials, a...

Embodiment 2

[0046] In the present embodiment, the selected diameter of the basalt fiber is 9 μm, and the basalt fiber includes the following components by weight ratio:

[0047] SO 2 : 52.43%;

[0048] al 2 o 3 : 18.33%;

[0049] CaO: 7.68%;

[0050] Fe 2 o 3 FeO: 10.53%;

[0051] Others (eg: Na 2 O, K 2 O, MgO, TiO 2 etc.): 11.03%.

[0052] The surface treatment agent is KH560 treatment agent.

[0053] The matrix resin is bisphenol A modified epoxy vinyl resin.

[0054] In the present invention, the preparation method of described basalt fiber composite reinforcement comprises the steps:

[0055] (1) Fiber surface treatment: Prepare the KH560 treatment agent into an aqueous solution with a concentration of 2%, and use a brushing tool to coat the aqueous solution on the outer surface of the basalt fiber. After brushing for 11 times, put the basalt fiber into the Vacuum and heat in a vacuum oven at 80°C for 30 minutes to remove moisture, then adjust the temperature of the vac...

Embodiment 3

[0059] In the present embodiment, the selected diameter of the basalt fiber is 13 μm, and the basalt fiber includes the following components by weight ratio:

[0060] SO 2 : 52.43%;

[0061] al 2 o 3 : 18.33%;

[0062] CaO: 7.68%;

[0063] Fe 2 o 3 FeO: 10.53%;

[0064] Others (eg: Na 2 O, K 2 O, MgO, TiO 2 etc.): 11.03%.

[0065] The surface treatment agent is KH560 treatment agent.

[0066] The matrix resin is selected from carbamate modified vinyl resin.

[0067] In the present invention, the preparation method of described basalt fiber composite reinforcement comprises the steps:

[0068] (1) Fiber surface treatment: Prepare the KH560 treatment agent into an aqueous solution with a concentration of 5%, and use a brushing tool to coat the aqueous solution on the outer surface of the basalt fiber. After brushing for 11 times, put the basalt fiber into the Vacuum and heat the vacuum oven at 95°C for 40 minutes to remove moisture, then adjust the temperature of t...

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Abstract

The invention discloses a preparation method of a basalt fiber reinforced polymer rebar. The basalt fiber reinforced polymer rebar is a fiber reinforced rebar prepared through the steps of impregnating matrix resin and curing after treating the basalt fiber by using a surface treating agent and is prepared through the following three steps: fiber surface treatment, matrix resin impregnation and formation by curing, wherein the basalt fiber is prepared from rough yarn or composite twisted rough yarn for textile processing and has the diameter of 7-13mu m. By using the preparation method, various defects existing in the traditional glass fiber preparation process are overcome; in addition, operation steps such as painting, impregnating, vacuum pressurizing, drying and the like are adopted, so that not only are the preparation steps simple and rapid, but also the large-scale industrial production can be realized, and the preparation cost is low.

Description

technical field [0001] The invention relates to a method for preparing a basalt fiber composite bar, in particular to a method for preparing a composite bar made of a basalt fiber reinforced material, and belongs to the field of composite material preparation. Background technique [0002] In the existing field of composite materials, the fibers used as composite reinforcement mainly include glass fiber, carbon fiber, boron fiber, alumina fiber, silicon carbide fiber, polyethylene fiber, etc., but due to price constraints, most fibers are only available Used in the military field, only glass fiber is widely used in the civilian field, but in the actual application process, glass fiber still has certain defects as a composite reinforcement, such as: [0003] (1) The production process of glass fiber consumes a lot of energy, which is not conducive to energy conservation and environmental protection; [0004] (2) The preparation process of glass fiber is harmful to the human ...

Claims

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Application Information

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IPC IPC(8): C08J5/06C08L101/02C08L63/00C08L67/06C08K9/06C08K7/10C08K3/36C08K3/22
Inventor 王灵
Owner SICHUAN AEROSPACE WU YUAN COMPOSITE