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Andalusite fiber size and preparation method thereof

A technology of sizing agent and andalusite, which is used in the field of andalusite fiber sizing agent and its preparation, can solve the problems of no strong chemical bond, poor film-forming property, and increased friction coefficient between fibers and machinery.

Inactive Publication Date: 2010-05-19
甘肃紫鑫矿业煤化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the sizing agents currently used are derived from chemical fiber oils. Although they overcome the above-mentioned shortcomings of poor water solubility and difficulty in emulsification, they still have the following shortcomings when used in special silicate andalusite fibers: 1. Poor bonding strength and molecular structure It is determined that it is mainly physical adsorption, and the bond that does not form a strong chemical bond, so the wetting agent is easy to fall off during production and use
2 Poor film-forming properties lead to a decrease in the cohesion and smoothness between fibers, which increases the friction coefficient between fibers and machinery, and the filaments are easy to slip off and become scattered, resulting in wool and waste silk, which affects the qualified rate of the product
[0003] At present, there is no public report related to the andalusite fiber sizing agent and its preparation method

Method used

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  • Andalusite fiber size and preparation method thereof
  • Andalusite fiber size and preparation method thereof
  • Andalusite fiber size and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The preparation of film-forming agent: the preparation method of film-forming agent styrene-maleic anhydride-octadecyl acrylate copolymer (St-MA-OA), its step is:

[0087] In the reaction flask equipped with thermometer, stirrer and reflux condenser, add 20.8g of styrene, 19.6g of maleic anhydride, 97.2g of octadecyl acrylate, 0.3g of initiator benzoyl peroxide (BPO) and 250mL toluene, blow nitrogen to remove the oxygen in the reaction flask, stir and heat up to 110-120°C, react for 6-8h, after the reaction is terminated, purify the copolymer with ethanol, and dry it in vacuum at 70°C for 8 hours.

[0088] 1. Add 315.0g of stearic acid, 75.0g of triethanolamine, and 3.0g of p-toluenesulfonic acid into a general-purpose reaction kettle equipped with mechanical stirring and temperature control devices, and react for 1 hour at a temperature of 80-150°C to obtain The product is ready for use.

[0089] 2. Add 110.0g EVA and 220.0g St-MA-OA to the antistatic agent synthesize...

Embodiment 2

[0096] 1. Add 325.0g of stearic acid, 75.0g of triethanolamine, and 3.0g of p-toluenesulfonic acid into a general-purpose reaction kettle equipped with a mechanical stirring and temperature control device, and react for 1 hour at a temperature of 80-150°C to obtain The product is ready for use.

[0097] 2. Add 320.0 g of St-MA-OA to the antistatic agent synthesized above, react at 100-140° C. for 1.5 h, and the resulting mixture is ready for use.

[0098] 3. Add 20.0g of silane coupling agent KH-550, 28.0g of ethylene bisstearic acid amide, and 400.0g of softener-b to the mixture synthesized above, react at 100-150°C for 1 hour, cool and discharge , the resulting product is the wetting agent. The pH of the final product is controlled at 6-7.

[0099] B. On-site preparation of infiltration agent;

[0100] 4. Accurately weigh the infiltration agent, and add the material according to the mass / volume ratio, that is, 1.0kg infiltration agent / 40 liters of water.

[0101] 5. The ...

Embodiment 3

[0104] 1. Add 315.0g of stearic acid, 95.0g of triethanolamine, and 3.5g of p-toluenesulfonic acid into a general-purpose reaction kettle with a mechanical stirring and temperature control device, and react at a temperature of 90-150°C for 1 hour to obtain The product is ready for use.

[0105] 2. Add 54.0g EVA and 266.0g St-MA-OA to the antistatic agent synthesized above, react at 100-140°C for 1.5h, and the resulting mixture is ready for use.

[0106] 3. Add 20.0g of KH-550, 18.0g of ethylene bisstearic acid amide and 400.0g of softener-a / softener-c mixture to the mixture synthesized above. This softener-c mixture contains 15% triethanolamine stearate monoester, 45% triethanolamine stearate diester and 40% triethanolamine stearate triester, reacts at 130°C for 1h, cools, and discharges the obtained The product is a wetting agent. The pH of the final product is controlled at 6-7.

[0107] B. On-site preparation of infiltration agent;

[0108] 4. Accurately weigh the infil...

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Abstract

The invention provides a multifunctional size for andalusite fibers, which uses an organic compound containing flexible chains in molecules as a main body and compounds a plurality of auxiliary agents. The size comprises the following components in percentage by weight: 0.5-1.5 percent of film forming agent, 1-10 percent of softening agent (penetrating agent), 0.05-0.3 percent of antistatic agent(antiseptic), 0.01-0.2 percent of dispersant, 0.01-0.07 percent of coupling agent, 0.05-0.1 percent of catalyst and the balance of tap water. The size has good convergence, lubricating property, filmforming property, antistatic property and antiseptic characteristic. Not only fibers processed through the size have flexible, anti-bending and anti-stretching characteristics, but also the fibers sprayed with the size have good dispersive property in water and can be used for the surface soakage treatment of multiple silicate fibers.

Description

technical field [0001] The invention relates to a sizing agent for silicate fiber surface treatment and a preparation method thereof, in particular to an andalusite fiber sizing agent and a preparation method thereof. Background technique [0002] Silicate fiber sizing agents used paraffin wax or starch as the main raw material in the early days. They have poor water solubility, are difficult to emulsify and disperse, and have very poor use effects, so they have long been eliminated. Most of the sizing agents currently used are derived from chemical fiber oils. Although they overcome the above-mentioned shortcomings of poor water solubility and difficulty in emulsification, they still have the following shortcomings when used in special silicate andalusite fibers: 1. Poor bonding strength and molecular structure It is determined that it is mainly physical adsorption, which does not form a strong chemical bond, so the wetting agent is easy to fall off during production and us...

Claims

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Application Information

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IPC IPC(8): C03C25/40C03C25/28C03C25/24
Inventor 魏家骏苏致兴丁生龙
Owner 甘肃紫鑫矿业煤化工有限公司
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