High copolymer pulp components for composite inorganic nanoparticles

A polymer copolymer and inorganic nanoparticle technology, which is applied in the field of high-efficiency and environmentally friendly new sizing, can solve the problems of increased warp breakage rate, increased sizing cost, and cannot be completely replaced, and can improve buckling resistance. and impact resistance, reducing sizing costs, and improving smoothness

Inactive Publication Date: 2005-09-21
XUZHOU CITY ZHONGHENG FINE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After canceling the PVA component or even just reducing the amount of PVA, the warp yarn breakage rate in the weaving production process will often increase significantly, and the efficiency of the loom will drop seriously. That is to say, the amount of PVA component is not so easy subtracted
For warp yarn sizing of difficult fabric varieties, the above three conventional methods not only cannot completely replace the PVA size component, but also increase the cost of sizing in terms of sizing equipment or size formulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 16 parts of 60% diallyldimethylammonium chloride aqueous solution, 63 parts of acrylamide, and 26 parts of acrylonitrile, add them to 240 parts of deionized water in sequence, and stir to dissolve. Weigh 1.26 parts of ammonium persulfate and dissolve in 45 ml of deionized water. In a 1000 ml four-necked bottle equipped with a mechanical stirrer, a thermometer, a condenser and a feeding port, add 310 deionized water and 90 ml of the above-mentioned mixed monomer solution, start stirring and heat up. When the temperature rose to 70-72°C, 10 milliliters of ammonium persulfate initiator solution was added to initiate polymerization. After 30min, add the mixed monomer and the initiator solution dropwise at the same time, and control the dropping speed and reaction temperature of the two, so that the mixed monomer is added dropwise within 1.5h, and the initiator solution is added dropwise within 2.0h, during which the reaction temperature is controlled. Between 72-78°C....

Embodiment 2

[0028]Take 30 parts of dimethylaminoethyl methacrylate, 25 parts of methyl methacrylate, 45 parts of butyl acrylate, 40 parts of ethylene acetate, 60 parts of acrylic acid, and 1.2 parts of lauryl peroxide, and mix them evenly. Add 360 milliliters of ethyl acetate and 80 milliliters of above-mentioned monomer-initiator mixed solutions in the 1000 milliliters of four-neck bottles that are equipped with mechanical stirrer, thermometer, condenser and feeding port, start stirring device and heat up to reflux temperature and carry out polymerization. After 30 minutes, add the remaining mixed monomers dropwise, and control the dropping speed so that the addition of the mixed monomers is completed within 1.0 h, during which the reaction system is maintained in a reflux state. After the dropwise addition of the monomer-initiator mixed solution was completed, the reaction was continued to be stirred under reflux for 30 minutes, and then 0.6 parts of lauryl peroxide was weighed, added to...

Embodiment 3

[0036] 300 parts of high molecular copolymers with a concentration of 20% prepared in Example 2 were heated to 50°C, and added to 400 parts of a concentration of 20% nano-sized inorganic microparticle suspension under stirring, and then dripped while stirring Add 10% sodium hydroxide solution, adjust the pH value to 8, and start the high-speed mixer to stir at high speed for 0.5 hours to prepare the slurry component.

[0037] Table 3 shows the experimental data of the size components prepared in this example and applied to the industrial sizing test of pure cotton warp yarns.

[0038] Test formula

original recipe

Polymer (Kg)

PVA(Kg)

Modified starch (Kg)

Polyacrylic size (Kg)

Fat (Kg)

Slurry cost (yuan / barrel)

Warp broken end rate (root / set·hour)

Loom Efficiency (%)

2

25

50

8

1

667

0.32

95.6

/

50

25

8

1

732

0.54

90.2

[0039] Des...

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PUM

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Abstract

The invention discloses a component of copolymer using in complex inorganic nanoparticles and relates to the pulp and sizing production and process technology of spinning warp sizing and paper-making glue processes. The said copolymer is a kind of ionic acrylic polymers and it is made of ionic monomers, hydrophilic monomers, acrylate monomers and few other monomers by free radical copolymerization reaction, or is made of polyacrylamide as the raw material by macromolecular chemical reaction. The said copolymer is used to prepare a new slurry component which substantial replaces PVA in the spinning warp sizing and paper-making glue processes. The said slurry contains of the mixture in a proportion of 0.1-50 % of copolymer, 0.1-50 % inorganic nanoparticles and residual water.

Description

technical field [0001] The invention relates to the size used in the fields of textile warp yarn sizing and papermaking surface sizing, and the preparation and processing technology of the size, in particular to a high-efficiency and environment-friendly new size. Background technique [0002] Starch or modified starch, PVA and other sizing components have been widely used in warp sizing and papermaking surface sizing. In the process of textile warp sizing, in order to improve the strength and wear resistance of sizing, reduce the rate of warp yarn breakage, and improve the production efficiency of cloth machines, it is usually necessary to mix a large amount of PVA sizing components while using modified starch sizing ; Surface sizing materials in the paper industry are also mainly modified starch and PVA. In view of the fact that PVA is difficult to biodegrade in the natural environment, long-term use will cause serious pollution to the water ecol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/00C08L33/02C08L33/12C08L33/26
Inventor 李世安冯宪民祝志峰
Owner XUZHOU CITY ZHONGHENG FINE CHEM TECH
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