Polyacrylamide slurry

A technology of polyacrylamide and acrylic amide, which is applied in fiber types, textiles and papermaking, fiber treatment, etc. It can solve the problems of increased dosage, low glass transition temperature, easy deformation of sizing, etc., and achieves improved moisture absorption and re-adhesiveness, large ratio High surface area and high adsorption capacity

Inactive Publication Date: 2012-02-22
WUJIANG RUIFENG WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyacrylamide pulp, polymethyl acrylate and polyacrylamide all have serious re-adhesion phenomenon. One of the reasons is that: the synthesized pulp contains too many hydrophilic groups, and the strong water absorption makes the dried The serous film is easy to absorb moisture and partially dissolve, and has a certain viscosity, so it is easy to have insufficient moisture absorption and stickiness on the loom, thus affecting the weaving effect
Another reason is that the vitrification temperature of the synthetic slurry is too low, and it shows a high elasticity that is easy to deform in the temperature range of use. The property of easy deformation makes the sizing yarns easy to stick to each other, resulting in re-adhesion and affecting the weaving effect. Now The research direction is to change the above two characteristics through appropriate molecular design, so as to increase the dosage and increase the dosage of modified starch, thereby reducing the dosage of PVA

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described in detail below in combination with specific embodiments.

[0008] A polyacrylamide slurry is characterized in that it includes the following components in parts by weight: 20-50 modified starch, 5-15 microcrystalline cellulose, 20-70 acrylic acid amide, and PVA1-5.

[0009] The weights of the components used in Examples 1-4 are shown in Table 1 (in kg)

[0010] Example Example Example Example modified starch 20.5 25.3 50.0 36.7 Microcrystalline Cellulose (500nm) 5.3 7.3 10.5 15.0 Acrylamide 20.3 40.5 53.2 70.0 PVA 1.2 3.2 5.0 4.1

[0011] The slurry prepared in Example 1 was tested on T / C and polyester-cotton muslin products. The sizing rate was 14.32%, the moisture regain rate was 3.05%, the strengthening rate was 11.28%, the elongation reduction rate was 29.08%, and the hairiness was close to the surface. in good condition.

[0012] The above specific embodiments ...

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PUM

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Abstract

The invention relates to polyacrylamide slurry which is characterized by comprising the following components by weight: modified starch 20 to 50, microcrystalline cellulose 5 to 15, acrylamide 20 to 70 and PVA (polyvinyl acetate) 1 to 5. According to the invention, nanometer microcrystalline cellulose and polyacrylamide are combined through electrostatic interaction, which enables glass-transition temperature of the slurry to be changed, thereby effectively improving viscosity of the polyacrylamide slurry after moisture absorption and reducing usage amount of PVA.

Description

technical field [0001] The invention relates to a polyacrylamide type slurry, which does not change much in viscosity after absorbing moisture, and belongs to the field of textile chemistry. Background technique [0002] Polyacrylamide pulp, polymethyl acrylate and polyacrylamide all have serious re-adhesion phenomenon. One of the reasons is that: the synthesized pulp contains too many hydrophilic groups, and the strong water absorption makes the dried The serous film is easy to absorb moisture and partially dissolve, and has a certain viscosity, so it is easy to have insufficient moisture absorption and re-adhesion on the loom, thereby affecting the weaving effect. Another reason is that the vitrification temperature of the synthetic slurry is too low, and it shows a high elasticity that is easy to deform in the temperature range of use. The property of easy deformation makes the sizing yarns easy to stick to each other, resulting in re-adhesion and affecting the weaving ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/11D06M15/285D06M15/05D06M15/333D06M101/32
Inventor 周桂荣
Owner WUJIANG RUIFENG WEAVING
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