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Copper-coated glass fiber reinforced flexible epoxy resin root puncture resistant waterproof composite material

A technology of flexible epoxy resin and glass fiber, which is applied in the field of waterproof material preparation, can solve the problems of difficult processing of inner corners, increased cost, complicated process, etc., achieve good root puncture resistance and waterproof effect, save production cost, and avoid pollution environmental effects

Active Publication Date: 2021-03-19
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Asphalt-based root puncture-resistant waterproofing membrane is one of the most widely used waterproof materials at present. The existing problems are as follows: First, due to the limited length and width of asphalt-based root-puncture-resistant waterproofing membrane, it is inevitable to use If there is an overlap, the root system of the plant is easy to penetrate the gap at the overlap, so the gap at the overlap becomes the weak link of the waterproof system; There are disadvantages of complex process, energy consumption and large pollution, and if the hot-melt welding is excessive, the coil will be carbonized, resulting in a decrease in strength and cohesion. Pyrolysis will make the overall root resistance performance deteriorate or fail. If the time is too short, the joint will form a virtual weld; third, the copper base of the asphalt root puncture-resistant waterproof membrane is mainly copper foil, and its mechanical properties And the ductility is poor, the carcass is easy to bulge and break when it encounters corners during construction, and it is difficult to deal with the inner corners; in addition, copper is a precious metal with a high price, and the use of copper foil as the base increases the amount of copper metal used. increased cost

Method used

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  • Copper-coated glass fiber reinforced flexible epoxy resin root puncture resistant waterproof composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Arranging the glass fibers in a degreasing liquid for 30 minutes at 40° C., and placing the treated glass fibers in 10 wt % dilute sulfuric acid to neutralize the lye on the surface;

[0030] The degreasing liquid is: a mixed solution of sodium hydroxide 60g / L, sodium carbonate 30g / L and sodium phosphate 15g / L;

[0031] 2) Arrange the degreased and neutralized glass fiber in step 1) in the sensitization solution, sensitize it at 25°C for 10 minutes, and rinse it repeatedly with clean water;

[0032] The sensitizing solution is: a mixture of stannous chloride 10g / L and hydrochloric acid 40ml / L; the percentage concentration of hydrochloric acid is 38%;

[0033] 3) Arrange the glass fiber sensitized in step 2) in the activation solution and activate it at 25°C for 10 minutes, and the Pd in ​​the solution 2+ The ions are converted into metal Pd particles, and then placed in 10g / L sodium hypophosphite for 10min to reduce the Pd on the surface 2+ ;

[0034] The activati...

Embodiment 2

[0040] Embodiment 2, with embodiment 1, the difference is,

[0041]1) Place the glass fiber bundles in a degreasing solution for 30 minutes at 40°C, and place the treated glass fiber bundles in 10 wt% dilute sulfuric acid to neutralize the lye on the surface;

[0042] 4) adjusting the pH value of the plating solution to 10 with ammonia water, placing the activated glass fiber bundles in step 3) in the copper plating solution, and plating copper at 80° C. for 20 minutes to obtain copper-plated glass fiber bundles;

[0043] Described copper plating liquid is: copper sulfate 40g / L, sodium hypophosphite 30g / L, sodium citrate 60g / L, the mixed solution of ammonium chloride 50g / L and thiourea 5mg / L;

[0044] 5) The mass parts are 100 parts of bisphenol A type E51 epoxy resin, 55 parts of curing agent D400 polyetheramine, 10 parts of plasticizer dibutyl phthalate, and 4 parts of curing accelerator nonylphenol. Stir evenly to obtain a flexible epoxy resin matrix;

[0045] 6) Forming ...

Embodiment 3

[0054] Embodiment 3, with embodiment 1, the difference is,

[0055] 1) Place the glass fiber bundles in a degreasing solution for 30 minutes at 40°C, and place the treated glass fiber bundles in 10 wt% dilute sulfuric acid to neutralize the lye on the surface;

[0056] 4) Adjust the pH value of the plating solution to 11 with ammonia water, place the activated glass fiber bundles in step 3) in the copper plating solution, and perform copper plating at 90° C. for 30 minutes to obtain copper-plated glass fiber bundles;

[0057] Described copper plating liquid is: copper sulfate 50g / L, sodium hypophosphite 40g / L, sodium citrate 70g / L, the mixed solution of ammonium chloride 60g / L and thiourea 6mg / L;

[0058] 5) The mass parts are 100 parts of bisphenol A type E51 epoxy resin, 55 parts of curing agent D400 polyetheramine, 10 parts of plasticizer dibutyl phthalate, and 4 parts of curing accelerator nonylphenol. Stir evenly to obtain a flexible epoxy resin matrix;

[0059] 6) Form...

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Abstract

The invention discloses a copper-plated fiber glass reinforced flexible epoxy resin root-resistant waterproof composite material. The root-resistant waterproof composite material is prepared by the following steps: fiber glass is de-oiled and neutralized in a de-oiling solution, sensitized in a sensitizing solution, activated in an activate solution, and copper-plated in a copper-plating solutionafter the pH value of the copper-plating solution is adjusted by ammonia water; a flexible epoxy resin matrix is prepared; the copper-plated fiber glass is used as a reinforcing material, and a root retardant and the flexible epoxy resin are used as matrices to form the root-resistant waterproof composite material by processes of priming by vacuum, injection molding and the like. The prepared root-resistant waterproof composite material has higher mechanical strength and good root resistance and waterproof effects; a surface copper-plating mode is adopted, thereby greatly decreasing the consumption of the noble metal copper and saving production cost; the processes of priming by vacuum, injection molding and the like can realize integration of a waterproof layer and a planting roofing baselayer; and the flexible epoxy resin can be cured and formed at ordinary temperature, thereby having the advantages of energy saving, environmental protection and greenness and having strong interfacecohesiveness with a concrete roof.

Description

technical field [0001] The invention belongs to the field of waterproof material preparation, in particular to a copper-plated glass fiber reinforced flexible epoxy resin root puncture resistant waterproof composite material. Background technique [0002] The development of green planted roofs is one of the effective ways to alleviate the "urban heat island" effect and protect the urban ecological environment. The green planted roof project consists of multiple comprehensive technologies such as planting, waterproofing, drainage, thermal insulation, etc., among which roof waterproofing technology is particularly important. Once leakage occurs, it will cause great economic losses. Root puncture-resistant waterproof material refers to a kind of high-efficiency waterproof material that can inhibit the further growth of roots to the waterproof layer and avoid damage to the waterproof layer. The plant roots in the planting roof system have strong penetrability. If the root punctu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K9/02C08K7/14C08K5/12C08J5/08
CPCC08J5/08C08J2363/00C08K5/12C08K7/14C08K9/02
Inventor 陈威贺行洋苏英曾三海陈顺杨进王迎斌郑正旗黄健翔王庭苇苏骏谭鑫
Owner HUBEI UNIV OF TECH