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High-performance nanometer-modified acrylic size and its production method

A nano-modification, acrylic technology, applied in the field of polymer materials, to achieve the effects of improving flexibility and wear resistance, reducing sizing costs, and strong operability

Inactive Publication Date: 2007-08-29
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some new acrylic size and modified starch can only partially replace PVA

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The mass percentage of each component of the high-performance nano-modified acrylic slurry adopts acrylic acid: acrylamide: acrylonitrile: butyl acrylate: oleic acid: nanoscale titanium dioxide (particle diameter is 30 nanometers) = 20: 25: 12: 31: 3 : 9 (the quality is respectively: 18 grams of acrylic acid, 22.5 grams of acrylamide, 10.8 grams of acrylonitrile, 27.9 grams of butyl acrylate, 2.7 grams of oleic acid, and 8.1 grams of nanoscale titanium dioxide). Its manufacturing steps are as follows:

[0039] The first step: raw material pretreatment

[0040] (1) prepare 10% NaoH solution and 10% NaCl solution respectively 100 milliliters;

[0041] (2) washing the acrylic monomer with 10% NaoH solution and 10% Nacl solution to remove the polymerization inhibitor;

[0042] (3) 22.5g of acrylamide was first dissolved in 50g of water, and then other pretreated monomers were mixed with it to form a monomer mixture.

[0043] The second step: modification of nano-titanium...

Embodiment 2

[0060] Embodiment 2: The mass percentage of each component of high-performance nano-modified acrylic slurry adopts acrylic acid: acrylamide: acrylonitrile: butyl acrylate: oleic acid: nanoscale titanium dioxide (particle diameter is 30 nanometers) = 24: 29: 10 :28:2:7 (the mass is 21.6 grams of acrylic acid, 26.1 grams of acrylamide, 9 grams of acrylonitrile, 25.2 grams of butyl acrylate, 1.8 grams of oleic acid, and 6.3 grams of nanoscale titanium dioxide).

[0061] Its manufacturing steps, process are identical with embodiment 1. Different from Example 1, except that the quality of each component mentioned above is different; the amount of adding ammonia water (concentration is 30%) is 52.5 grams, so that the pH value of the synthetic solution is 7;

[0062] Table two: the slurry property test result of embodiment 2

[0063] Indicator name

Embodiment 3

[0065] The mass percentage of each component of the high-performance nano-modified acrylic slurry adopts acrylic acid: acrylamide: acrylonitrile: butyl acrylate: oleic acid: nanoscale titanium dioxide (particle diameter is 30 nanometers) = 22: 27: 11: 29: 2.7 : 8.3 (the quality is 19.8 grams of acrylic acid, 24.3 grams of acrylamide, 9.9 grams of acrylonitrile, 16.1 grams of butyl acrylate, 2.43 grams of oleic acid, and 7.47 grams of nanoscale titanium dioxide).

[0066] Its manufacturing steps are identical with embodiment 1. Its technology is different from embodiment 1 as follows:

[0067] (1), titanium dioxide swelling for 55 minutes;

[0068] (2), after the monomer and initiator are added dropwise, the temperature of the liquid in the reactor is slowly raised to 90°C and kept basically stable for 60 minutes;

[0069] (3), except above-mentioned each component quality difference; When cooling to 65 ℃, add 57.5g ammoniacal liquor (concentration is 30%), make the pH value ...

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Abstract

The present invention belongs to the field of new polymer material, and discloses one kind of nanometer modified high performance acrylic acid size and its preparation process. The acrylic acid size is prepared with nanometer level titania powder, acrylic acid, acrylamide acrylonitrile and butyl acrylate as main synthesized material, oleic acid as modifier and ammonium sulfate as initiator. Owing to the nanometer material with reinforcing effect, wear resistance and high permeability, and the acrylic acid monomer with functional group similar to that in fabric fiber structure, the size has excellent permeating and coating performance and high adhesion, forms complete, antiwear, tough and elastic size film, and may be used in sizing fabric of cotton, Dacron, etc. including fabric warp with high density and high weaving difficulty.

Description

Technical field: [0001] The invention belongs to the field of polymer materials, and relates to a high-performance nano-modified acrylic slurry and a manufacturing method thereof. Background technique: [0002] Due to the general acrylic paste, its paste performance mainly depends on the performance of each organic monomer. Specifically, due to the combination of different monomers, the molecular structure of the synthetic slurry has different functional groups, which make it have certain polarity, hydrophilicity and glass transition temperature; but due to the defects of various monomers, the synthetic slurry The sizing film strength and abrasion resistance of the material are still poor, and the excessive amount can easily cause the sizing yarn to absorb moisture and stick again. Therefore, the sizing effect is not ideal, and it cannot completely replace PVA. It can only be used in conjunction with PVA and starch to assist in sizing. PVA is an unclean slurry, which has b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F20/00C08F2/44C08K3/20
Inventor 晏雄崔建伟张慧萍
Owner DONGHUA UNIV
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