Eggshell modified polypropylene slurry and preparation method thereof

A technology of egg shell and polypropylene, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of immature polyacrylic acid slurry production technology, difficulty in replacing polyvinyl alcohol slurry, and serious re-viscosity, so as to improve sizing effect, increase sizing rate, and good permeability

Active Publication Date: 2016-05-04
SUZHOU INSILK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the textile size can be mainly divided into three types of modified starch, polyvinyl alcohol and polyacrylic acid, which occupy a large proportion in the domestic and foreign markets. Among them, the usage of polyvinyl alcohol size in my country's textile size is still very large. Large, polyvinyl alcohol is a difficult biodegradable organism, and a large amount of use will cause great pollution to the environment
Polyacrylic size is a green and degradable type of size, which is a copolymer of acrylic monomers. It has strong adhesion, excellent flexibility and film-forming properties, but has the disadvantages of high moisture absorption and serious re-adhesion
[0005] Therefore, the production technology of polyacrylic acid size is still immature, it is difficult to meet the requirements of various warp yarn sizing, and it is difficult to replace polyvinyl alcohol size in a short time, so further research is needed on polyacrylic acid size

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The components of the egg shell modified polypropylene slurry include, in parts by weight, 20 parts of egg shell powder, 10 parts of a surfactant, 80 parts of polyacrylic acid, 5 parts of a pH regulator and 25 parts of water.

[0032] The specific operation steps are:

[0033] (1) Egg shells are soaked, washed, and dried at 120° C., and the inner membrane of the egg shell is removed to obtain egg shells without inner membrane.

[0034] (2) Grinding the egg shell without inner membrane prepared in step (1) into micro-nano-scale egg shell powder, adding 1 weight part of micro-nano-scale egg shell powder to 2 weight parts of ethanol and water In the mixed solution, wherein the volume ratio of ethanol to water is 3:1, sonicate for 20 minutes, add sodium lauryl sulfate, heat and stir to obtain an egg shell solution, wherein the solid content of the egg shell is 54%.

[0035] (3) Add the egg shell solution into the acrylic acid monomer solution, stir at 40°C to obtain a mixe...

Embodiment 2

[0037] The components of the egg shell modified polypropylene slurry include, by weight, 40 parts of egg shell powder, 15 parts of a surfactant, 100 parts of polyacrylic acid, 15 parts of a pH regulator and 30 parts of water.

[0038] The specific operation steps are:

[0039] (1) Egg shells are soaked, washed, and dried at 120° C., and the inner membrane of the egg shell is removed to obtain egg shells without inner membrane.

[0040] (2) Grinding the egg shell without inner membrane prepared in step (1) into micro-nano-scale egg shell powder, adding 1 weight part of micro-nano-scale egg shell powder to 5 weight parts of ethanol and water in parts by weight In the mixed solution, wherein the volume ratio of ethanol to water is 4:1, sonicate for 30 minutes, add sodium lauryl sulfate, heat and stir to obtain egg shell solution, wherein the solid content of egg shell is 73%.

[0041] (3) Add the egg shell solution to the acrylic acid monomer solution, stir at 50°C to obtain a m...

Embodiment 3

[0043] The components of the egg shell modified polypropylene slurry include, by weight, 30 parts of egg shell powder, 13 parts of a surfactant, 90 parts of polyacrylic acid, 10 parts of a pH regulator and 27 parts of water.

[0044] The specific operation steps are:

[0045] (1) Egg shells are soaked, washed, and dried at 120° C., and the inner membrane of the egg shell is removed to obtain egg shells without inner membrane.

[0046] (2) Grinding the egg shell without inner membrane prepared in step (1) into micro-nano-scale egg shell powder, adding 1 weight part of micro-nano-scale egg shell powder to 3 weight parts of ethanol and water In the mixed solution, wherein the volume ratio of ethanol to water is 3:1, sonicate for 25 minutes, add sodium lauryl sulfate, heat and stir to obtain egg shell solution, wherein the solid content of egg shell is 68%.

[0047] (3) Add the egg shell solution into the acrylic acid monomer solution, stir at 45°C to obtain a mixed solution, pou...

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PUM

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Abstract

The invention provides an eggshell modified polypropylene slurry and a preparation method thereof. The preparation method comprises the following steps: (1) soaking and washing eggshells, drying at 120 DEG C, and then taking out the inner membranes of the treated eggshells, so as to obtain the inner-membrane-free eggshells; (2) grinding the inner-membrane-free eggshells obtained in step (1) into nanometer eggshell powder, adding the nanometer eggshell powder into an ethanol-water mixed solution, performing ultrasonic treatment for 20-30 min, adding sodium dodecyl sulfate, and heating and stirring to obtain an eggshell solution; and (3) adding the eggshell solution into an acrylic monomer solution, uniformly stirring at 40-50 DEG C to obtain a mixed solution, pouring the mixed solution into a reaction kettle which comprises a reflux condensation device, adding a potassium persulfate initiator for a heating reaction, and adding ammonium hydroxide to adjust the pH value of the mixed solution to be 8.0-9.5, so as to obtain the eggshell modified polypropylene slurry.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to eggshell-modified polypropylene slurry and a preparation method thereof. Background technique: [0002] With the continuous improvement of people's living standards, the demand for eggs in people's lives continues to increase, but most of the eggshells after people eat eggs are directly discarded as waste products, and then a small amount is used for feed production, the utilization rate is not high, not only waste resources and pollute the environment. In recent years, as the concept of green, natural and circular development has been deeply rooted in the hearts of the people, the comprehensive utilization of egg shells has gradually received attention. Tapping the intrinsic value of egg shells can not only reduce the waste of resources, but also convert garbage into economy. The main component of egg shells is calcium carbonate, and also contains a small...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/263D06M11/76C08F120/06C08F2/44
CPCC08F2/44C08F120/06D06M11/76D06M15/263
Inventor 周继东
Owner SUZHOU INSILK CO LTD
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