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Binding agent with viscosity of 50-80 mPa.s, and preparation method and application thereof

A binder and viscosity technology, applied in the direction of conductors, electrical components, circuits, etc., can solve the problems of high energy consumption, energy consumption, troublesome use, etc., and achieve the effects of improving utilization efficiency, saving energy consumption, and being convenient to use

Active Publication Date: 2013-01-09
SHANGHAI TONNOR MATERIAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two disadvantages in the above-mentioned adhesive: (1) when the adhesive is used, it needs to be melted in a hot water bath before use, which is troublesome to use and consumes energy; After calcination at 1250°C for 7 hours, the moisture in the binder can be completely volatilized, which consumes a lot of energy

Method used

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Examples

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Effect test

preparation example Construction

[0027] The invention provides a preparation method of a binder with a viscosity of 50-80 mPa·s, comprising:

[0028] Step 1. Use sodium hydroxide to alkalize the cellulose with a degree of polymerization of 600 to 800 for 0.5 to 1 hour. The amount of sodium hydroxide is 0.5 to 0.6 times the mass of the cellulose, and the alkalization temperature is less than or equal to 50°C;

[0029] Step 2, using propylene oxide and ethylene chloride to carry out etherification treatment on the reaction product obtained in the step 1 for 0.5 to 1 h, wherein the consumption of propylene oxide is 0.1 to 0.2 times the mass of cellulose, ethylene chloride is The dosage is 0.8 to 1.2 times the mass of cellulose;

[0030] In step 3, the reaction product obtained in the second step is subjected to subsequent processing to obtain a binder.

[0031] In the preparation method of the binder with a viscosity of 50-80 mPa·s, the cellulose is obtained by treating the sulfated waste cotton linters, wherei...

Embodiment 1

[0048] Step 1. Use sodium hydroxide to alkalize the cellulose with a degree of polymerization of 600 to 800 for 0.5h, the amount of sodium hydroxide is 0.5 times the mass of the cellulose, the alkalization temperature is 40 ° C, and the alkalization treatment is performed in nitrogen. Under the environment, the pressure is always 0.04MPa;

[0049] Step 2, adopt propylene oxide and ethyl chloride to carry out etherification treatment to the reaction product obtained in the step 1 for 0.5h, wherein, the consumption of propylene oxide is respectively 0.1 times of the quality of cellulose, and the consumption of ethyl chloride is 0.8 times the mass of cellulose, and the pressure of the etherification reaction environment is kept at 0.14MPa;

[0050] Step 3, carry out follow-up processing to the reaction product obtained in the step 2:

[0051] Step (a), separate the liquid in the reaction product obtained in the step 2 to obtain a solid reaction product; the liquid obtained by sepa...

Embodiment 2

[0056] Step 1. Use sodium hydroxide to alkalize cellulose with a degree of polymerization of 600 to 800 for 1 hour. The amount of sodium hydroxide is 0.6 times the mass of the cellulose. The alkalization temperature is 50°C, and the alkalization treatment is performed in a nitrogen environment. Carry out, the pressure is 0.05MPa;

[0057] Step 2, adopting propylene oxide and ethylene chloride to carry out etherification treatment for 1h to the reaction product obtained in the step 1, wherein, the consumption of propylene oxide is respectively 0.2 times of the quality of cellulose, and the consumption of ethylene chloride is cellulose 1.2 times the mass of the element, and the pressure of the etherification reaction environment is 0.15MPa;

[0058] Step 3, carry out follow-up processing to the reaction product obtained in the step 2:

[0059] Step (a), separate the liquid in the reaction product obtained in the step 2 to obtain a solid reaction product; the liquid obtained by ...

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Abstract

The invention discloses a binding agent with viscosity of 50-80 mPa.s, and a preparation method and application thereof. Cellulose with the polymerization degree of 600-800 used as the raw material is subjected to alkalization treatment and etherification treatment under certain technological conditions to obtain the binding agent with the viscosity of 50-80 mPa.s. The binding agent has proper viscosity, and thus, has favorable binding effect when in use; in the later manufacturing period of the knob insulator, the drying can be completed by calcining at 750 DEG C for 3 hours, thereby greatly lowering the energy consumption; and the binding agent has favorable water solubility, can be dissolved in water at normal temperature, and thus, is very convenient to use, thereby saving the energy consumption for dissolving the binding agent. The sulfated waste cotton wool is used as the raw material for preparing cellulose; and the cellulose with the polymerization degree of 600-800 contained in the sulfated waste cotton wool just satisfies the technical requirements of the binding agent for the mineral insulated cable knob insulator. By utilizing the characteristics of the sulfated waste cotton wool, the invention implements reutilization of the sulfated waste cotton wool and enhances the resource utilization efficiency.

Description

technical field [0001] The invention relates to the field of mineral insulation cables, in particular to a method for preparing a binder with a viscosity of 50-80 mPa·s, and also to the binder obtained by the preparation method and the use of the binder in mineral insulation cables. Application in the preparation of cable porcelain columns. Background technique [0002] Mineral insulated cables, as fireproof cables, play a very important role in the construction of the national economy. With the development of economy, the use of mineral insulated cables is becoming more and more extensive. The traditional mineral insulated cable porcelain column uses a mixture of polyvinyl alcohol and zinc stearate as a binder. When the powder is granulated, it is added by spraying in a proportion of not more than 3%. The above-mentioned binder has two disadvantages: (1) when the binder is used, it needs to be melted in a hot water bath before it can be used, which is troublesome and con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B11/193D21C5/00C04B35/01H01B7/02
Inventor 张楠崔永坤
Owner SHANGHAI TONNOR MATERIAL SCI
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