Efficient-corrosion-inhibition compound chloride salt type snow-melting agent and preparation method thereof

A technology of snow melting agent and corrosion inhibitor, which is applied in the field of high-efficiency corrosion-inhibiting compound chloride salt type snow-melting agent and its preparation, can solve the problems of unsatisfactory corrosion inhibition effect and high cost, achieve excellent corrosion inhibition effect, reduce corrosion, and improve anode The effect of polarization

Active Publication Date: 2016-12-07
CHINASALT JINTAN
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Problems solved by technology

With the change of the corrosion inhibition environment (such as the concentration after dissolution, the ratio of sodium chloride and calcium chloride or other factors) will ...

Method used

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  • Efficient-corrosion-inhibition compound chloride salt type snow-melting agent and preparation method thereof
  • Efficient-corrosion-inhibition compound chloride salt type snow-melting agent and preparation method thereof
  • Efficient-corrosion-inhibition compound chloride salt type snow-melting agent and preparation method thereof

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Embodiment Construction

[0032] 1. Formula composition

[0033] Table 1 has listed the deicing agent of 5 embodiments and blank sample, and numerical value wherein is calculated with mass parts:

[0034] Table 1

[0035]

[0036]

[0037] 2. Metal carbon steel corrosion

[0038] In order to determine the effect of the corrosion inhibitor, refer to the rotary coupon method of DB11 / T 161-2012 for detection. The test method and test conditions are as follows:

[0039] Firstly, the deicing agent in each embodiment and blank sample in Table 1 is prepared as a corrosion solution according to the chlorine salt mass fraction of 24.0%;

[0040] The sample is a rectangular No. 20 carbon steel sheet (GB / T 699), with a size of 5mm×2.5mm×0.2mm and a surface area of ​​28mm 2 , the samples were wiped off the surface grease with filter paper before the experiment, soaked in acetone and absolute ethanol and dried, and finally wrapped the samples one by one with filter paper, and placed them in a desiccator fo...

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Abstract

The invention belongs to the field of snow melting and deicing and particularly relates to an efficient-corrosion-inhibition compound chloride salt type snow-melting agent and a preparation method thereof. The efficient-corrosion-inhibition compound chloride salt type snow-melting agent comprises sodium chloride, calcium chloride dihydrate, a corrosion inhibitor and auxiliaries, wherein the corrosion inhibitor comprises sodium hexametaphosphate, sodium molybdate, sodium benzoate, sodium gluconate, zinc dihydrogen phosphate, sodium tartrate, sodium tripolyphosphate, sodium silicate, sodium lignin sulfonate, sodium citrate, benzotrizaole and thiourea; the auxiliaries comprise sodium carboxymethyl cellulose, urea and povidone. The efficient-corrosion-inhibition compound chloride salt type snow-melting agent which is granular solid has the advantages that the snow-melting agent is suitable for large-scale mechanical throwing operation and excellent in corrosion inhibition effect, and the deicing and snow melting ability of the snow-melting agent can be brought into full play in aspects such as city and rural roads, highways, rail transit, airports, squares, courtyards and bridges.

Description

technical field [0001] The invention belongs to the field of snow melting and deicing, and in particular relates to a high-efficiency corrosion-inhibiting composite chlorine salt type snow-melting agent and a preparation method thereof. Background technique [0002] In cold winter, ice and snow greatly reduce the adhesion coefficient of vehicle tires. According to relevant data, the adhesion coefficient of dry asphalt pavement is about 0.6, while that of snow-covered road is only 0.2, and that of icy road is only 0.15, respectively. 1 / 3 and 1 / 4 of dry asphalt pavement. Therefore, the snow and ice on the road surface due to snowfall will have a serious adverse effect on the smoothness of the road and driving safety, causing the car to skid, significantly prolonging the braking distance, and even causing brake failure and loss of direction control, resulting in serious traffic accidents. In order to ensure smooth roads and driving safety, avoid traffic accidents or reduce tra...

Claims

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Application Information

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IPC IPC(8): C09K3/18C23F11/08
CPCC09K3/18C23F11/08
Inventor 陈留平徐俊辉苏志俊韩俊甜崔耀星冷翠婷李伟
Owner CHINASALT JINTAN
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