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Polymer shell coating material, polymer coating slow-release inorganic salt and preparation methods thereof

A technology of polymers and cladding materials, applied in chemical instruments and methods, and other chemical processes, can solve problems such as waste of resources, environmental pollution, and no research on material temperature control, and achieve the effect of lowering the freezing point

Active Publication Date: 2018-11-27
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Salt-storage asphalt mixture is mixed with salt-storage snow melting and deicing agent in the asphalt mixture, but the current snow melting and deicing agent materials only perform surface hydrophobic treatment on anti-icing components, and there is no research on the temperature control of materials
In non-winter climates, in an environment with high rain and air humidity, anti-condensation ice salts can also be released, resulting in waste of resources and environmental pollution

Method used

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  • Polymer shell coating material, polymer coating slow-release inorganic salt and preparation methods thereof
  • Polymer shell coating material, polymer coating slow-release inorganic salt and preparation methods thereof
  • Polymer shell coating material, polymer coating slow-release inorganic salt and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of Polymer Shell Covering Material

[0031] Follow the steps below:

[0032] 1. Mix 1-2g of acrylic acid, 20-24g of methyl acrylate, 15-20g of butyl acrylate, and 8-10g of styrene to prepare a polymer monomer solution.

[0033] 2. Take a four-neck flask, add 44-84g of isopropanol or propylene glycol methyl ether solution into it, connect it to a condenser, and stir in an oil bath at 100-140°C.

[0034] 3. Mix the polymer monomer solution prepared in step 1 with 1-4g KH570 (silane coupling agent), 0.8-1.0g AIBN (azobisisobutyronitrile) and add it dropwise to step 2 through a separatory funnel. In the four-necked flask with isopropanol or propylene glycol methyl ether, the dropwise addition time is 2.5-3.5 hours, then keep warm for 0.7-1.3 hours, and finally add 0.08-0.12 parts of AIBN and 2-3 parts of isopropanol or propylene glycol methyl ether, Continue to stir for 0.8 to 1.5 hours, lower the temperature to 40 to 60°C, then add 2 to 4 parts of t...

Embodiment 2

[0035] Example 2 Preparation of polymer-encapsulated slow-release inorganic salt

[0036] Follow the steps below:

[0037] 1. Preparation of slow-release inorganic salt core material

[0038] 1. First prepare 100g of calcium chloride saturated solution.

[0039] 2. Mix 8g of diatomite, 0.8g of nano silicon dioxide, 3g of surfactant op-10, and 140g of absolute ethanol in a four-necked flask, place the four-necked flask in a 50°C water bath, and then stir Stir with a polytetrafluoroethylene stirring rod under a container to prepare a nano-silica-modified diatomite suspension.

[0040] 3. Add the saturated calcium chloride solution dropwise to the diatomite suspension prepared in step 2 through a separatory funnel, and stir after the dropwise addition to obtain a mixed solution.

[0041] 4. Vacuum filter the mixed solution prepared in step 3, then put it into an oven for drying, and then pulverize it into powder with a mortar to obtain the slow-release inorganic salt core mate...

Embodiment 3

[0048] Example 3 Preparation of polymer-encapsulated slow-release inorganic salt

[0049] Follow the steps below:

[0050] 1. Preparation of slow-release inorganic salt core material

[0051] 1. First prepare 110 g of magnesium chloride saturated solution.

[0052] 2. Mix 9g of diatomite, 1.2g of nano silicon dioxide, 5g of surfactant op-8, and 160g of absolute ethanol in a four-necked flask, place the four-necked flask in a 70°C water bath, and then stir Stir with a polytetrafluoroethylene stirring rod under a container to prepare a nano-silica-modified diatomite suspension.

[0053] 3. Add the saturated magnesium chloride solution dropwise to the diatomite suspension prepared in step 2 through a separatory funnel, and stir after the dropwise addition to obtain a mixed solution.

[0054] 4. Vacuum filter the mixed solution prepared in step 3, then put it into an oven for drying, and then pulverize it into powder with a mortar to obtain the slow-release inorganic salt core ...

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Abstract

The invention discloses a polymer shell coating material. The polymer shell coating material is prepared from, by mass, 1-2 parts of crylic acid, 20-24 parts of methyl acrylate, 15-20 parts of butyl acrylate, 8-10 parts of styrene, 46-87 parts of isopropanol or propylene glycol monomethyl ether, 1-4 parts of KH570, 0.88-1.12 parts of AIBN and 2-4 parts of triethylamine. The invention further discloses polymer coating slow-release inorganic salt. The polymer coating slow-release inorganic salt comprises a slow-release type inorganic salt core material, the polymer shell coating material and water, wherein the slow-release type inorganic salt core material is prepared from, by weight, 100-140 parts of anti-freezing chloride salt saturated solution, 8-10 parts of kieselguhr, 0.8-1.2 parts ofnano-silica, 3-5 parts of surfactant and 140-160 parts of absolute ethyl alcohol; and the mass ratio of the slow-release type inorganic salt core material to polymer monomers in the polymer shell coating material is (3.2-3.7):1. The invention discloses preparation methods of the polymer shell coating material and polymer coating slow-release inorganic salt.

Description

technical field [0001] The invention relates to the field of antifreeze and deicing technology for road pavements, in particular to a polymer shell coating material, a polymer-wrapped slow-release inorganic salt and a preparation method. Background technique [0002] At present, the snow and ice on the road area in winter has caused problems such as the decrease of the anti-skid coefficient of the road surface and vehicle skidding, which has made it difficult to travel in winter and easily caused traffic safety accidents, which has an important impact on people's production and life. The road maintenance departments of various countries A series of measures have been taken to clear the snow and ice on the road, to ensure the traffic capacity of the road, and to improve the service level of the road in winter. [0003] The problem of snow and ice on roads in winter has attracted special attention from road maintenance departments and researchers at home and abroad. The initia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/185
Inventor 郭鹏冯云霞高云伍燕曹雪娟何丽红朱洪洲唐伯明邹晓翎何圳谢凤章
Owner CHONGQING JIAOTONG UNIVERSITY
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