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High-water-absorption film composite material and preparation method thereof

A thin film composite material, high water absorption technology, applied in flat products, other household utensils, applications, etc., can solve the problems of airtightness, large space and usage, discomfort, etc., achieve high elongation, thickness reduction, Guaranteed stability and spillover effects

Inactive Publication Date: 2020-09-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these auxiliary materials need to occupy a large amount of space and usage when combining and compounding water-absorbing powder materials, so the volume and thickness of the water-absorbing material after shaping are often increased, making the applied products more bloated, such as the early Sanitary napkins, diapers and other products, due to the increase in the thickness of the absorbent layer, will cause defects such as discomfort and airtightness when the product is applied, so the development of ultra-thin, soft, comfortable and breathable water-absorbing layer materials is a disposable hygiene care product development trends and requirements

Method used

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  • High-water-absorption film composite material and preparation method thereof
  • High-water-absorption film composite material and preparation method thereof
  • High-water-absorption film composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for preparing a superabsorbent film composite material, at least comprising the following components in parts by weight:

[0050] Weight (parts)

[0051]

[0052] After the above-mentioned components are measured separately, first add polyvinyl alcohol PVA, talc powder, stearamide, and EASYTECH ST-5000 into the high-speed mixer, start stirring, and stir at a low speed of 200 rpm for 5 minutes; open a high-speed 1200 After stirring for 20 minutes at rpm, add K-205PE and glycerol, continue stirring at high speed (1200 rpm) for 30 minutes, turn to low speed at 100 rpm, add SH-SAP-216, continue Stir for 15 minutes, discharge and set aside.

[0053] After the raw materials of the above components are mixed evenly, they are added to a twin-screw blending extrusion granulator for extrusion granulation. The extruder is divided into 10 zones for temperature control extrusion granulation: 100 / 120 / 140 / 150 / 160 / 170 / 180 / 180 / 170 / 160°C; the die is filtered with a 120-mes...

Embodiment 2

[0059] A method for preparing a superabsorbent film composite material, at least comprising the following components in parts by weight:

[0060] Weight (parts)

[0061]

[0062] After the above-mentioned components are measured separately, first add polyvinyl alcohol PVA, light calcium carbonate, oleamide, and EASYTECHST-5020 into the high-speed stirring mixer, start stirring, and stir at a low speed of 300 rpm for 15 minutes; turn on a high speed of 1500 After stirring for 30 minutes at rpm, add Na-203PE and ethylene glycol, continue stirring at high speed (1500 rpm) for 15 minutes, turn to low speed at 200 rpm, add SK273, and continue stirring for 30 minutes , the material is ready for use.

[0063] After the raw materials of the above components are mixed evenly, they are added to a twin-screw blending extrusion granulator for extrusion granulation. The extruder is divided into 10 zones for temperature control extrusion granulation: 100 / 120 / 140 / 150 / 160 / 170 / 180 / 180 / 17...

Embodiment 3

[0069] A method for preparing a superabsorbent film composite material, at least comprising the following components in parts by weight:

[0070] Weight (parts)

[0071]

[0072] After the above-mentioned components are measured separately, first add polyvinyl alcohol PVA, white carbon black, erucamide, and EASYTECH ST-5030 into the high-speed stirring mixer, start stirring, and stir at a low speed of 250 rpm for 10 minutes; After stirring at 1300 rpm for 25 minutes, add Na-208PE and polyethylene glycol-400, continue to stir at high speed (1300 rpm) for 20 minutes, turn to low speed at 150 rpm, add SP601, Continue to stir for 20 minutes, discharge and set aside.

[0073] After the raw materials of the above components are mixed evenly, they are added to a twin-screw blending extrusion granulator for extrusion granulation. The extruder is divided into 10 zones for temperature control extrusion granulation: 100 / 120 / 140 / 150 / 160 / 170 / 180 / 180 / 170 / 160°C; the die is filtered wit...

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Abstract

The invention discloses a high-water-absorption film composite material and a preparation method thereof. The film composite material comprises the following components in parts by weight: 100 parts of polyvinyl alcohol PVA, 10-20 parts of main plasticizer, 5-10 parts of auxiliary plasticizer, 5-30 parts of high-water-absorption resin, 0.5-2 parts of filling material, 0.3-1.0 part of slipping agent, and 0.5-1.0 part of dispersing agent. The components are uniformly dispersed at a high speed and then subjected to twin-screw extrusion granulation, and extrusion-blown molding film-forming is carried out to prepare the film composite material. The high-water-absorption film composite material prepared by the preparation method has a high normal saline absorption rate, and presents a high normal saline retaining rate. The high-water-absorption film composite material can be applied to the fields of hygiene care, agriculture, forestry, gardening, medicine and health, civil construction, petrochemical engineering, and the like.

Description

technical field [0001] The invention belongs to the field of preparation of functional composite materials, and in particular relates to a high water absorption film composite material and a preparation method thereof. Background technique [0002] As a functional material, water-absorbent material has the characteristics of absorbing water tens to thousands of times its own weight, and has strong water retention and water holding capacity, and does not produce dehydration or dehydration under external force. , so it is widely used in agriculture, forestry, horticulture, medicine and health, civil engineering, petrochemical, health care and other fields. [0003] Water-absorbent materials can be known from their production methods and processes. Usually, their products are in the form of powders, so in the application field, they generally need to be compounded or combined with other materials to achieve their effective, simple and convenient applications, such as Products ...

Claims

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Application Information

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IPC IPC(8): B29B9/06B29D7/01C08L29/04C08L71/02C08K13/02C08K5/053C08K3/34C08K5/20C08K13/04C08K7/26C08K3/26C08J5/18
CPCB29B9/06B29D7/01C08J5/18C08J2329/04C08J2429/04C08J2471/02C08K3/26C08K3/34C08K3/346C08K5/053C08K5/20C08K7/26C08K13/02C08K13/04C08K2003/265
Inventor 崔跃飞崔若曦
Owner SOUTH CHINA UNIV OF TECH
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