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Degradable anti-freezing material for cement concrete pavement, and preparation method of degradable anti-freezing material

A technology of cement concrete and anti-freezing materials, applied in chemical instruments and methods, and other chemical processes, can solve the problems of dispersed ice-suppressing components, difficult long-term melting of ice and snow on the road surface, and achieve low cost and convenient large-scale The production and use, the effect of strong application value

Active Publication Date: 2021-01-26
CHINASALT JINTAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, continuous stirring can easily disperse the anti-icing components into the cement concrete, and it is difficult to make the road surface play the role of melting ice and snow for a long time

Method used

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  • Degradable anti-freezing material for cement concrete pavement, and preparation method of degradable anti-freezing material
  • Degradable anti-freezing material for cement concrete pavement, and preparation method of degradable anti-freezing material
  • Degradable anti-freezing material for cement concrete pavement, and preparation method of degradable anti-freezing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Weigh 100g powder anhydrous calcium chloride. Heat and stir at 70° C., add 2 g of silane coupling agent KH-550 for constant temperature stirring, stir for 5 minutes, cool down and let stand for 30 minutes naturally to obtain blend 1.

[0027] (2) Heat and stir 1g of polylactic acid with a molecular weight of 70,000 and 2.35g of bisphenol F / A copolymer epoxy resin NPEF-175 at 155°C, and dissolve the blend prepared in step (1) after the polylactic acid is completely melted Added and stirred for 3 minutes, added 2.35 g of dicyclohexylmethane diisocyanate (HMDI) at a reaction temperature of 155° C., stirred for 5 minutes, and finally added 0.23 g of tung oil and continued to stir for 10 minutes to obtain a blend 2.

[0028] (3) The blend 2 was placed into a tablet press, and pressed for 180 seconds under the condition of a pressure of 3KN per square centimeter.

[0029] (4) Place the sheet antifreeze material at room temperature for 24 hours.

[0030] (5) By crushing ...

Embodiment 2

[0032] (1) Weigh 80g of sodium chloride, crush it to 200 mesh, and then add 20g of powdered calcium acetate. Heat and stir at 70° C., add 1 g of silane coupling agent KH-560 to carry out constant temperature stirring, stir for 5 minutes, cool down and let stand for 30 minutes naturally to obtain blend 1.

[0033] (2) Heat and stir 1g of polylactic acid with a molecular weight of 40000 and 3g of bisphenol A epoxy resin NPEL128 at 155°C. After the polylactic acid is completely melted, add the blend prepared in step (1) and stir for 3min. Add 2.5 g of diphenylmethane diisocyanate (MDI) at a temperature of 155° C., stir for 5 min, and finally add 0.15 g of tung oil and continue stirring for 10 min to obtain a blend 2.

[0034] (3) The blend 2 was placed into a tablet press, and pressed for 180 seconds under the condition of a pressure of 3KN per square centimeter.

[0035] (4) Place the sheet antifreeze material at room temperature for 24 hours.

[0036] (5) By crushing and taki...

Embodiment 3

[0038] (1) Weigh 80g of magnesium chloride and 20g of potassium acetate and grind them to 200 mesh. Heat and stir at 70°C, add 2g of silane coupling agent KH-550 for constant temperature stirring, stir for 5 minutes, cool down and let stand for 30 minutes naturally to prepare blend 1.

[0039] (2) Heat and stir 0.9g of polylactic acid with a molecular weight of 60000 and 3g of bisphenol F epoxy resin NPEF-170 at 155°C. After the polylactic acid is completely melted, add the blend prepared in step (1) and stir After 3 minutes, 1.85 g of toluene diisocyanate was added at a reaction temperature of 155° C., stirred for 5 minutes, and finally 0.15 g of tung oil was added and stirred for 10 minutes to obtain blend 2.

[0040] (3) The blend 2 was placed into a tablet press, and pressed for 180 seconds under the condition of a pressure of 3KN per square centimeter.

[0041] (4) Place the sheet antifreeze material at room temperature for 24 hours.

[0042] (5) By crushing and taking ...

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Abstract

The invention belongs to the field of road pavement anti-freezing and deicing materials, and particularly relates to a degradable anti-freezing material for a cement concrete pavement, and a preparation method of the degradable anti-freezing material. The related anti-freezing material is prepared from an anti-freezing core material and a degradable film material, wherein the core material mainlycomprises chlorine salt and acetate anti-freezing components, and the degradable film material comprises a silane coupling agent, epoxy resin, tung oil, a degradable component and an isocyanate curingagent. The preparation method comprises the following steps: crushing an anti-freezing material core material to a particle size of about 200 meshes, mixing the crushed anti-freezing material core material with a silane coupling agent, heating, stirring, cooling, mixing with epoxy resin, a degradable component and isocyanate under a heating condition, molding under a pressure of not less than 3 KN / cm<2>, cooling, and crushing to obtain the degradable anti-freezing material with the size of about 1 mm.

Description

technical field [0001] The invention belongs to the field of antifreeze and deicing materials for road pavement, in particular to a degradable antifreeze material for cement concrete pavement and a preparation method thereof. Background technique [0002] In the period of rapid increase in traffic in our country, in order to ensure smooth roads and driving safety and avoid traffic accidents, research on road snow prevention and snow removal measures to ensure the smooth safety of roads in winter snowfall has become a top priority in transportation work. The adoption of effective snow prevention and snow removal measures has very important economic benefits and social significance. Active ice suppression technology refers to the pre-adoption of related technologies or the addition of special materials to the mixture in road construction or overhaul to make the road surface have special functions to achieve the purpose of snow melting and deicing. Salt self-melting snow road s...

Claims

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Application Information

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IPC IPC(8): C09K3/18
CPCC09K3/18Y02W30/91
Inventor 王卫东陈留平黄子杰李悦
Owner CHINASALT JINTAN