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Preparation method for crylic acid copolymerization slurry

A technology of acrylic acid and copolymerization, which is applied in fiber types, textiles and papermaking, fiber processing, etc., can solve environmental pollution and other problems, and achieve the effects of easy biodegradation, excellent sizing performance, and improved sizing performance

Inactive Publication Date: 2017-05-10
尤世元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to overcome the shortcoming existing in the prior art, seek to provide a kind of eco-environmentally friendly emulsion nano-composite acrylic acid copolymerization size and preparation method thereof, it is used in conjunction with modified starch size, in polyester cotton or polyester viscose yarn It can completely replace PVA size in the sizing process of the thread, and can overcome the shortage of environmental pollution caused by the use of PVA size in the existing sizing process of textile enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Preparation of acrylic copolymer slurry A: Weigh 5 g of sodium bentonite and add it to 85 ml of water, adjust the pH to 8 with lye, and stir and beat for 1 hour to prepare a sodium bentonite dispersion. Weigh 2.5g of acrylic acid into 22ml of water, neutralize with 0.8g of sodium hydroxide to obtain a water-soluble mixed monomer solution; weigh 30g of butyl acrylate and 12.5g of vinyl acetate, and mix to obtain an oil-soluble monomer mixed solution. Add one-fifth of the total amount of water-soluble mixed monomer solution and one-fifth of the total amount of oil-soluble mixed monomer solution into the sodium bentonite dispersion, add 1g nonylphenol polyoxyethylene ether and 0.2g ten Sodium dialkyl sulfonate, stir evenly, then add 0.5g ammonium persulfate, continue to stir and slowly raise the temperature to the reflux temperature to initiate the reaction, keep the reflux temperature and continue the reaction until the reflux of the reaction liquid basically disappears, st...

Embodiment 2

[0015] Preparation of acrylic copolymer syrup B: The implementation process is the same as in Example 1, except that 5g sodium bentonite is changed to 8g sodium montmorillonite, and 85ml of water is changed to 82ml, an emulsion nanocomposite with a solid content of about 30% can be obtained. Acrylic copolymer syrup B.

Embodiment 3

[0017] Preparation of acrylic copolymer syrup C: The implementation process is the same as in Example 1, except that 5g of sodium bentonite is changed to 10g of halloysite, and 85ml of water is changed to 80ml, the emulsion nanocomposite acrylic copolymer with a solid content of about 30% can be obtained. Slurry C.

[0018] Dilute the prepared emulsion nano-composite acrylic copolymer slurries A, B, and C respectively, and lay down a thin film. Use transmission electron microscope and X-ray diffraction analysis to find the layered silicon in the emulsion nano-composite acrylic copolymer slurry. The acid salt sheet layer exists in nanometer size, which proves that the prepared emulsion nanocomposite acrylic copolymer slurries A, B and C are all nanocomposite acrylic copolymer slurries.

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Abstract

The invention relates to a preparation method for crylic acid copolymerization slurry. The slurry is formed by combining crylic acid copolymerization slurry and an inorganic material in the nanoscale dimension, and the solid content is 10-50%. The preparation method comprises the following steps: firstly weighing clay, adding the clay to water, adjusting the pH value, stirring so that the clay forms uniform dispersion liquid; weighing oil solubility monomer and preparing oil solubility mixed monomer solution; weighing water solubility monomer and adding the water solubility monomer to the water for dissolving, adjusting the pH value by using alkali to obtain the water solubility mixed monomer solution; and respectively adding the oil solubility and the water solubility mixed monomer solution to the clay dispersion liquid, adding an emulsifier and an initiator, uniformly stirring, dropping the rest oil solubility and the water solubility monomer mixed solution while the temperature is raised so as to trigger the copolymerization completely, keeping the temperature until the reaction is completed, raising the temperature and continuously reacting until the monomer backflow is not existent, cooling, adjusting the pH value, and filtering to obtain a product. The process is simple, and the performance is good.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of textiles, and relates to a process method of environmentally friendly emulsion nano-composite acrylic copolymer sizing agent for textiles, in particular to a preparation method of acrylic acid copolymer sizing agent. [0003] technical background: [0004] As we all know, textile size is mainly divided into starch size, polyvinyl alcohol (PVA) size and polyacrylic acid size. Polyvinyl alcohol size was first used for warp sizing in 1940. The excellent film-forming properties, adhesion and good compatibility with other sizing agents are quickly adopted by the textile industry. After the advent of synthetic fiber blended yarns (polyester / cotton), PVA sizing agents can also meet their sizing requirements. Claim. At present, in the sizing process of textile warp yarns, PVA as the main sizing agent has been widely used in the sizing of pure cotton, polyester cotton, polyester viscose, nylon and other yarns, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F218/08C08F220/06C08F2/44C08F2/30C08F2/26D06M15/333D06M11/79D06M15/11D06M101/32D06M101/06
Inventor 江丽黄绪凤尤世元
Owner 尤世元
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