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Sealing material required for water permeability coefficient determination and preparation method thereof

A technology of sealing material and water permeability coefficient, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high cost, inconvenient use, low recovery rate, etc., and achieve the effect of low cost, good water resistance and high recovery rate

Active Publication Date: 2019-02-15
林永峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly reflected in inconvenient use (storage), high cost, low recovery rate, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A method for preparing a sealing material required for water permeability coefficient measurement, the specific steps are as follows:

[0053] (1) Mineral powder, talcum powder, sepiolite fiber and water are mixed and beaten at a mass ratio of 1:1:1:25 to form a suspension, and the water is removed by vacuum filtration to obtain the first mixture;

[0054] (2) adding petroleum resin and sucrose polyester-modified polyphenylene ether with a mass ratio of 1:0.6 into the reaction furnace for melting to obtain the second mixture;

[0055] (3) Pour the first mixture and the second mixture into absolute ethanol at a mass ratio of 1:1.2, ultrasonically disperse and then ball mill to remove ethanol and dry to obtain prefabricated powder;

[0056] (4) Mix the calcium-based grease and the prefabricated powder at a mass ratio of 1:3 and knead for 5 minutes.

[0057] Wherein, the step (1) is beating for 1 hour with an impeller beater.

[0058] In step (2), the melting time is 30 ...

Embodiment 2

[0067] A method for preparing a sealing material required for water permeability coefficient measurement, the specific steps are as follows:

[0068] (1) Mineral powder, talc powder, sepiolite fiber and water are mixed and beaten at a mass ratio of 1: 2: 2: 30 to make a suspension, and the water is removed by vacuum filtration to obtain the first mixture;

[0069] (2) adding petroleum resin and sucrose polyester-modified polyphenylene ether with a mass ratio of 1:0.8 into the reaction furnace for melting to obtain the second mixture;

[0070] (3) Pour the first mixture and the second mixture into absolute ethanol at a mass ratio of 1: 1.5, ultrasonically disperse and then ball mill to remove ethanol and dry to obtain prefabricated powder;

[0071] (4) Mix the calcium-based grease with the prefabricated powder at a mass ratio of 1:4 and knead for 10 minutes.

[0072] Wherein, the step (1) is beating for 2 hours with an impeller beater.

[0073] In step (2), the smelting time ...

Embodiment 3

[0082] A method for preparing a sealing material required for water permeability coefficient measurement, the specific steps are as follows:

[0083] (1) Mineral powder, talc powder, sepiolite fiber and water are mixed and beaten at a mass ratio of 1:1:2:25 to make a suspension, and the water is removed by vacuum filtration to obtain the first mixture;

[0084] (2) adding petroleum resin and sucrose polyester-modified polyphenylene ether with a mass ratio of 1:0.8 into the reaction furnace for melting to obtain the second mixture;

[0085] (3) Pour the first mixture and the second mixture into absolute ethanol at a mass ratio of 1:1.2, ultrasonically disperse and then ball mill to remove ethanol and dry to obtain prefabricated powder;

[0086] (4) Mix the calcium-based grease with the prefabricated powder at a mass ratio of 1:4 and knead for 5 minutes.

[0087] Wherein, the step (1) is beating for 2 hours with an impeller beater.

[0088] In step (2), the melting time is 30 ...

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Abstract

The invention provides a sealing material required for water permeability coefficient determination and a preparation method thereof. The sealing material is prepared through mixed kneading of calcium-based grease and pre-prepared powder, wherein the sealing material is endowed with certain leakproofness and waterproofness by the calcium-based grease; the waterproof performance is further improvedthrough mineral powder, talcum powder and petroleum resin; the leakproofness is further improved through sepiolite fibers; and polyphenyl ether, which is modified with sucrose polyester, synergizes with petroleum resin and the calcium-based grease, so that a product is endowed with appropriate viscidity and an appropriate peel strength (equal to those of plasticine available in the market), and the leakproofness and the waterproofness of the product are greatly improved. The material provided by the invention has the characteristics of high waterproofness, appropriate viscidity (low viscidityleads to poor sealing effects, and high viscidity causes high difficulty in removal), peel easiness, good leakproofness and the like; and the material is convenient to use and store, low in cost andhigh in recovery rate; and the detection efficiency is greatly improved, and the detection cost is reduced.

Description

technical field [0001] The invention relates to the technical field, in particular to a sealing material required for water permeability coefficient measurement and a preparation method thereof. Background technique [0002] The water seepage coefficient of the pavement is one of the important detection indicators of the asphalt pavement, and the water seepage coefficient of the pavement is tested by a water seepage meter. According to JTGE60-2008 "Highway Subgrade Pavement On-Site Test Regulations", it is required to place a sealing material between the water seepage meter and the inside of the asphalt before testing the water seepage coefficient, so as to prevent the pressure water from flowing out from the gap between the bottom of the water seepage meter and the asphalt pavement during the test. data error. [0003] In the testing procedures, the sealing material is recommended to use waterproof putty, putty or plasticine. In the actual use process, it is found that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/10C08G65/48C08G81/00
CPCC08G65/485C08G81/00C09K3/10C09K2003/1081
Inventor 陈京帅
Owner 林永峰
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