Non-woven fabric toughened water-absorbing acrylate polymer material and preparation method thereof

A polymer material, acrylate technology, applied in chemical instruments and methods, layered products, personal care, etc., can solve the problems of easy falling, dispersion, poor strength and toughness, and safety risks of SAP, and achieve the protection of green ecology. and environment, enhance strength and toughness, increase the effect of dredging performance

Pending Publication Date: 2021-12-10
佛山市嘉信盈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Common sanitary napkins, diapers and other disposable absorbent products use wood pulp or dust-free paper mixed with high-absorbent resin SAP as the absorbent material. Since SAP is in the form of particles, particles are easily transferred to the product through the surface layer during the use of sanitary napkins. On the surface, the main component of SAP is acrylate, which is chemically processed and has a certain proportion of chemical residues. It becomes gel after absorbing water. If it is transferred to the surface or body of the human body, it will bring potential safety risks to consumers.
[0004] In addition, during the production process of absorbent materials containing SAP, SAP is easy to fall and disperse, which will pollute the environment, and operators are also easy to inhale foreign matter, which is harmful to health. At the same time, wood pulp is made of trees and other plants. Deforestation and consumption have negative effects on resource regeneration and environmental protection
[0005] In view of the above factors, some manufacturers have developed and applied acrylic foam materials to replace fluff pulp and SAP, but the strength and toughness of such materials are poor, and the breaking strength is below 3N / 25mm, which is easy to break during use and affects the quality of the product. In use, at the same time, the material is easy to break during machined continuous mass production, affecting quality and efficiency

Method used

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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  • Non-woven fabric toughened water-absorbing acrylate polymer material and preparation method thereof
  • Non-woven fabric toughened water-absorbing acrylate polymer material and preparation method thereof
  • Non-woven fabric toughened water-absorbing acrylate polymer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0041] Specific embodiment 1: Acrylic monomer 3.2kg (wherein myristyl acrylate 1.4kg, myristyl methacrylate 0.8kg and ethylene glycol dimethacrylate 1kg); Dipolyglyceryl isostearate Ester (emulsifier) ​​0.5kg; Ammonium persulfate (initiator) 0.3kg; Electrolyte saline solution (3% calcium chloride solution) 96kg; Non-woven fabric uses 18gsm hot-air non-woven fabric, using a combination in the bottom layer of the material.

[0042] Process steps:

[0043] 1) Preparation of oil phase and water phase:

[0044] Prepare the oil phase: heat up the oil phase mixing pot to 45°C-55°C, put in the weighed acrylic monomer and emulsifier and start stirring, the stirring speed is 100-800 rpm, and the stirring time is 15-30 minutes until smooth, set aside.

[0045] Prepare the water phase: in the water phase mixing pot, configure 96 kg of 3% calcium chloride solution, stir at a speed of 30-50 rpm, stir for 15-30 minutes until fully dissolved, and set aside.

[0046] 2) Transfer the water p...

specific Embodiment 2

[0054] Specific example 2: Acrylic monomer 5kg (wherein isodecyl acrylate 2.6kg, isodecyl methacrylate 0.8kg and 1,4-butylene glycol dimethacrylate 1.6kg); Fatty acid ester (emulsifier) ​​1kg; Ammonium persulfate (initiator) 0.4kg; Electrolyte saline solution (3% calcium chloride solution) 93kg; Non-woven fabric uses 18gsm hot-air non-woven fabric, uses a combination in the middle of the material.

[0055] Process steps:

[0056] 1) Preparation of oil phase and water phase:

[0057] Prepare the oil phase: heat up the oil phase mixing pot to 45-55°C, put in the weighed acrylic monomer and emulsifier and start stirring, the stirring speed is 100-800 rpm, and the stirring time is 15-30 minutes until Evenly, set aside.

[0058] Prepare the water phase: In the water phase mixing pot, configure 96kg of 3% calcium chloride solution, stir at a speed of 30-50 rpm, stir for 15-30 minutes until fully dissolved, and set aside.

[0059] 2) Transfer the water phase to a high-speed homoge...

specific Embodiment 3

[0067] Specific example 3: Acrylic monomer 3.2kg (wherein isooctyl acrylate 1.2kg, ethylene glycol dimethacrylate 0.8kg, isooctyl methacrylate 0.7kg and hexanediol diacrylate 0.5kg) Dipolyglycerol isostearate (emulsifier) ​​0.5kg; Ammonium persulfate (initiator) 0.3kg; Electrolyte saline solution (3% calcium chloride solution) 96kg; Non-woven fabric uses 20gsm spun-bonded non-woven fabric, Combining the top and bottom layers of material, a three-layer structure.

[0068] Process steps:

[0069] 1) Preparation of oil phase and water phase:

[0070]Prepare the oil phase: heat up the oil phase mixing pot to 45-55°C, put in the weighed acrylic monomer and emulsifier and start stirring, the stirring speed is 100-1000 rpm, and the stirring time is 15-30 minutes until Evenly, set aside.

[0071] Prepare the water phase: In the water phase mixing pot, configure 96kg of 3% calcium chloride solution, stir at a speed of 30-50 rpm, stir for 15-30 minutes until fully dissolved, and set ...

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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Abstract

The invention discloses a non-woven fabric toughened water-absorbing acrylate polymer material and a preparation method. The material is prepared from the following raw materials in parts by weight: 1.9-33.3 parts of a non-woven fabric, 2-5 parts of an acrylate monomers, 0.3-3 parts of an emulsifier, 0.2-2 parts of an initiator and 89-97.5 parts of an electrolyte solution. According to the invention, the non-woven fabric is added to the raw material, so that strength and toughness of the material are effectively enhanced, breakage of the material and a finished product in the using process is greatly reduced, the dredging performance of the material is increased, the back permeation performance of the material is improved, the dryness of a finished product is greatly improved, and the physical and psychological health of consumers is benefited; the preparation method comprises the steps of preparing an oil phase and a water phase, emulsifying, adding an initiator, laminating, carrying out steam curing, washing, and drying; and a non-woven fabric mixing and curing technology is applied, a non-woven fabric and an acrylate polymeric material are combined together to form a composite high polymer material, traditional wood pulp and SAP are replaced, the safety of a product is improved, the green ecology and environment are protected, the dry and comfortable performance is improved, the strength and toughness of the product are enhanced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a water-absorbing material, in particular to a water-absorbing acrylate polymer material and a preparation method. Background technique [0002] With the development of the economy and the improvement of living standards, people's consumption demand for disposable sanitary products is increasing. At the same time, as the concept of consumption becomes more mature and open, consumers hope to use more comfortable and safe products. [0003] Common sanitary napkins, diapers and other disposable absorbent products use wood pulp or dust-free paper mixed with high-absorbent resin SAP as the absorbent material. Since SAP is in the form of particles, particles are easily transferred to the product through the surface layer during the use of sanitary napkins. Surface, while the main component of SAP is acrylate, which is chemically processed and has a certain proportion of chemical residues. It becomes gel after absorbing water. If it ...

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): B32B5/02B32B27/30B32B27/12B32B38/00B32B38/16C08F220/18C08F222/14
CPCB32B5/022B32B27/308B32B27/12B32B38/00B32B38/162B32B38/164C08F220/1818C08F220/1811C08F220/1808B32B2038/0076B32B2250/40B32B2307/558B32B2307/726B32B2555/00C08F222/102
Inventor 林艳芬粱永江张维军
Owner 佛山市嘉信盈科技有限公司
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