Preparation method of super absorbent resin for cables or optical cables

A technology of superabsorbent resin and fiber optic cable, which is applied in the field of preparation of superabsorbent resin, can solve the problems that the liquid absorption rate and swelling height cannot meet the requirements, and achieve the effects of fast water absorption rate, high internal porosity and high swelling degree

Active Publication Date: 2013-12-04
浙江卫星新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the superabsorbent resins prepared in these patent reports mainly meet the performance requirements of hygienic materials such as disposable diapers, diapers, and sanitary products, but there is still a certain gap in the application of special purposes such as cables or optical cables. The swelling height cannot meet the requirements

Method used

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  • Preparation method of super absorbent resin for cables or optical cables
  • Preparation method of super absorbent resin for cables or optical cables
  • Preparation method of super absorbent resin for cables or optical cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 380 g of cyclohexane into a 1 L five-neck round bottom flask equipped with a stirrer, reflux condenser, dropping funnel, thermometer and nitrogen inlet tube. Add 2g of 33-35wt% ethoxylated nonylphenol sulfosuccinic acid half-ester disodium salt and 0.6g of ethyl cellulose, raise the temperature to 80°C, and disperse it evenly at a stirring speed of 300rpm.

[0041] Add 100 g of an aqueous solution of acrylic acid monomer with a concentration of 75 wt % into a 500 mL beaker. 97.5 g of 32 wt % sodium hydroxide aqueous solution was added dropwise to the beaker. Then, 0.2 g of potassium persulfate and 0.1 g of propylene glycol diglycidyl ether were added thereto to obtain a partially neutralized aqueous solution of acrylic acid monomer.

[0042] Add the partially neutralized aqueous solution of acrylic acid monomer dropwise into the above-mentioned five-necked round-bottomed flask, and blow in nitrogen gas for 30-60 minutes while stirring. React for 2 hours. After th...

Embodiment 2

[0045] In addition to changing 2g 33-35wt% disodium ethoxylated nonylphenol sulfosuccinate half ester and 0.6g ethylcellulose to 2.5g 30-32wt% polyoxyethylene lauryl ether sulfate and 0.8 g hydroxymethyl cellulose, other operations are the same as in Example 1.

Embodiment 3

[0047] Add 380 g of cyclohexane into a 1 L five-neck round bottom flask equipped with a stirrer, reflux condenser, dropping funnel, thermometer and nitrogen inlet tube. Add 3.5g of 33-35wt% ethoxylated nonylphenol sulfosuccinate half ester disodium salt and 1.0g of ethyl cellulose, raise the temperature to 80°C, and disperse it evenly at a stirring speed of 300rpm.

[0048] Add 100 g of acrylic acid aqueous solution with a mass concentration of 75% (wt%) into a 500 ml beaker. 97.5 g of 32 wt % sodium hydroxide aqueous solution was added dropwise to the beaker. Then, 0.3 g of sodium persulfate and 0.06 g of glycerol glycidyl ether were added thereto to obtain a partially neutralized aqueous solution of acrylic acid monomer.

[0049] Add the partially neutralized aqueous solution of acrylic acid monomer dropwise into the above-mentioned five-necked round-bottomed flask, and blow in nitrogen gas for 30-60 minutes while stirring. React for 2 hours. After the reaction, the tempe...

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Abstract

The invention discloses a preparation method of super absorbent resin for cables or optical cables. The preparation method comprises: adding a partially neutralized acrylic acid solution containing an initiator and a cross-linking agent into petroleum hydrocarbon containing an anionic-nonionic surfactant and a polymeric protective colloid for anti-phase suspension polymerization, to prepare the super absorbent resin which has high porosity and large specific surface area in the interior, has rapid water absorption rate and high swelling capacity, and is applied to the cables or the optical cables.

Description

technical field [0001] The invention relates to a preparation method of superabsorbent resin, in particular to a preparation method of superabsorbent resin with high porosity, large specific surface area, fast water absorption rate and high swelling degree. Background technique [0002] During the operation of plastic insulated power cables, communication cables, and optical fiber cables, the cable core current will generate a strong electric field. If the sheath is damaged, water will penetrate longitudinally, causing various failures of the entire cable network due to water immersion, and even causing The accident of cable short circuit seriously affects the safety and quality of use of the cable network. [0003] The vertical water blocking material of the cable sheath is mainly used at home and abroad at present, swelling water blocking tape (yarn) or water blocking paste, to solve the vertical penetration of water. The processing of water blocking paste is cumbersome a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F120/06C08F2/32C08J3/24C08J7/12
Inventor 马国林张葵花刘健阮玉林
Owner 浙江卫星新材料科技有限公司
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