Method for producing glass fiber reinforced plastic anchor pole

A production method and glass fiber reinforced plastic technology are applied in the production field of glass fiber reinforced plastic bolts, which can solve the problem that the wettability combination of two-phase interface cannot be effectively solved, and the tensile properties of glass fiber reinforced plastic bolts cannot be maximized, torsion resistance, and shear resistance. Insufficient and other problems, to achieve the effect of dense organization, improved tensile strength, and improved tensile performance

Inactive Publication Date: 2011-10-05
扬州中矿矿业技术发展有限公司 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

The matrix phase resin glue liquid configured in the traditional FRP bolt production method does not contain components that can make the two phases form an interpenetrating network structure, and cannot effectively solve the problem of wettability combination of the two phase interfaces, and will not be vacuumed and degassed , after curing, there are bubbles and cracks that make the structure not dense enough. The glass fiber used is vertical wit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Implementation 1. Production of fiberglass anchor rods with a size of Φ22mm×1500mm.

[0018] Mix unsaturated polyester resin, nano mullite, aluminum hydroxide, polyurethane, zinc stearate, white carbon black, methyl ethyl ketone peroxide, TBPB, and release agent components in the resin glue tank according to the mass ratio, Stir for 15 minutes to form a uniform resin glue; the mass ratio of each component in the resin glue is: 192 unsaturated polyester resin 82.5%, nano mullite 2%, aluminum hydroxide 3.5%, polyurethane 1.5% %, zinc stearate 4%, white carbon black 2%, methyl ethyl ketone peroxide 1%, TBPB 1.5%, release agent 2%; according to the size of the resin glue tank of the production line, in order to ensure that the glass fiber is fully impregnated , configure at least 5KG of resin glue. Put the evenly stirred resin glue into a vacuum drying oven and evacuate to below -0.1Mpa, and continue vacuuming for 30 minutes to eliminate the air bubbles in the resin glue; ...

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PUM

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Abstract

The invention discloses a method for producing a glass fiber reinforced plastic anchor pole, especially a method for producing a highly torsion-resistant, anti-shearing prestressing glass fiber reinforced plastic anchor pole, comprising the following steps of: mixing unsaturated polyester resin, nanometer mullite, aluminium hydroxide, polyurethane, zine stearate, white carbon black, methylethyl ketone peroxide, TBPB and a mould release agent according to a mass ratio in a resin solution groove with stirring to produce a resin solution, followed by vacuum-pumping and bubble-removing; towing glass fibres from a filament rack, twisting the glass fibres on a twisting support to form a twist of 10-30 degrees by rotating and towing the twisted glass fibres into the resin solution groove for impregnation; towing the twisted and impregnated glass fibres into a cone-shaped sleeve for folding and bundle-forming as well as preforming; finally continuously towing the folded bundles of glass fibres into a hot pressing die, followed by molding at the temperature of 160-180 DEG C. The method provided by the invention is simple, and the anchor pole produced by the invention has high torsion-resistant and anti-shearing performance as well as low cost.

Description

technical field [0001] The invention relates to a production method of a fiberglass anchor rod, in particular to a production method suitable for a high torsion-resistant, shear-resistant prestressed fiberglass anchor rod. Background technique [0002] FRP bolts generally use resin glue as the matrix phase and glass fiber as the reinforcing phase. It is an advanced composite material. It not only has unique and superior properties such as corrosion resistance, light weight, easy cutting without sparks, but also has high Excellent tensile strength and good anchoring performance; it not only helps to improve the reliability and durability of engineering support, but also helps to reduce hidden dangers of accidents and ensure production safety; it can also reduce production costs and improve production efficiency. FRP bolts are widely used in the support of tunnels, roadways and ramps in the construction process of mining, roads, railways, water conservancy, municipal engineeri...

Claims

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Application Information

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IPC IPC(8): B29C70/50
Inventor 王延庆吴有良武奇江利
Owner 扬州中矿矿业技术发展有限公司
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