CN111979780A - Aerogel composite non-woven material and preparation method thereof - Google Patents

Aerogel composite non-woven material and preparation method thereof Download PDF

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Publication number
CN111979780A
CN111979780A CN201910421188.XA CN201910421188A CN111979780A CN 111979780 A CN111979780 A CN 111979780A CN 201910421188 A CN201910421188 A CN 201910421188A CN 111979780 A CN111979780 A CN 111979780A
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CN
China
Prior art keywords
aerogel
woven material
aerogel composite
layer
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910421188.XA
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Chinese (zh)
Inventor
靳小军
程学伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu Yongdeli Spunlace Nonwovens Co ltd
Original Assignee
Changshu Yongdeli Spunlace Nonwovens Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changshu Yongdeli Spunlace Nonwovens Co ltd filed Critical Changshu Yongdeli Spunlace Nonwovens Co ltd
Priority to CN201910421188.XA priority Critical patent/CN111979780A/en
Publication of CN111979780A publication Critical patent/CN111979780A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/06—Properties of the materials having thermal properties
    • D06N2209/065—Insulating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/10—Clothing

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses an aerogel composite non-woven material and a preparation method thereof. The aerogel layer is disposed on a surface of the nonwoven layer. The aerogel is dispersed in an ammonium polycarboxylate aqueous solution to prepare coating slurry, and then the coating slurry is coated on the surface of the non-woven material, and after drying and baking, the aerogel composite non-woven material is prepared. The invention has the advantages of simple operation, production in conventional textile coating equipment and cost reduction; the prepared aerogel composite non-woven material is simple in structure, light and thin, and is heat-insulating and warm-keeping; can be used for producing various warm-keeping clothes, including lower clothes.

Description

Aerogel composite non-woven material and preparation method thereof
Technical Field
The invention belongs to the field of textile engineering, and particularly relates to an aerogel composite non-woven material and a preparation method thereof.
Background
The thermal insulation material plays a role in thermal insulation mainly by reducing heat transfer. There are three ways of heat transfer: conduction, convection, radiation. For the human body, the proportion of radiation is very low; the conduction belongs to a heat transfer mode between solids, and the direct contact between the body surface and the outside is reduced as much as possible; convection is the most dominant way of dissipating human body heat. For down jackets, the function of keeping warm is mainly to form a warm layer separated from the outside through the mutual gap between the down and the down. The down feather is soft and light, a certain amount of air is arranged in gaps among the down feather and the down feather, and due to the fact that the gaps are small, air convection effect among the down feather and the down feather is poor, and cold air outside cannot easily reach the inside. On the contrary, the inside hot air is not easily to the outside. So that the temperature is maintained. The warm-keeping capability of the down jacket is mainly embodied in the air with a certain thickness stored after being fluffy and the insulating capability of the outer layer to cold air. In short, the thicker the outermost fabric is, the thicker the fluffy fabric is, and the stronger the heat-insulating ability is. However, the thicker the down jacket is, the bulkier the upper body effect is, which affects the beauty. Meanwhile, because the down products are thick, the down products are rarely used for producing down-dresses.
Therefore, aiming at the problems that the upper body effect of the down jacket is bloated, the appearance is affected and the down jacket is particularly difficult to apply to the lower garment, the preparation of a light, thin, heat-insulating and warm-keeping material is one of the problems to be solved by the technical personnel in the field.
Aerogels, also known as xerogels. When most of the solvent is removed from the gel, the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the appearance is solid, namely xerogel, also called aerogel. The aerogel has a unique nano-pore structure, so that the aerogel has excellent thermal insulation performance, the thermal conductivity under the normal temperature condition is about 0.2W/m as K, and the aerogel is the best thermal insulation solid material at present.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide an aerogel composite non-woven material and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an aerogel composite nonwoven material comprising a nonwoven layer and an aerogel layer. The aerogel layer is disposed on a surface of the nonwoven layer.
Further, the aerogel composite nonwoven material has an areal density of 30-150g/m2。
Further, the aerogel layer is disposed on either or both sides of the nonwoven layer.
Further, the aerogel layer is a coating of aerogel.
Further, the aerogel is silicon dioxide aerogel.
Further, the coating is a water-based coating.
A method for preparing the aerogel composite nonwoven material is characterized by comprising the following steps:
(1) dispersing the aerogel in an aqueous solution of an ammonium polycarboxylate compound;
(2) preparing the aerogel solution into coating slurry;
(3) and coating the coating slurry on the surface of the non-woven material, and drying and baking to obtain the aerogel composite non-woven material.
Furthermore, in the baking process, the baking temperature is 120-180 ℃, and the baking time is 0.5-5 minutes.
The preparation method of the aerogel composite non-woven material is simple and convenient to operate, can be produced in conventional textile coating equipment, and reduces the cost; the prepared aerogel composite non-woven material is simple in structure, light and thin, and is heat-insulating and warm-keeping; can be used for producing various warm-keeping clothes, including lower clothes.
Detailed Description
The aerogel composite non-woven material provided by the invention comprises a non-woven material layer and an aerogel layer, wherein aerogel coating slurry is applied to the surface of the non-woven material, and after drying and baking, the surface of the non-woven material is solidified into an aerogel film to prepare the aerogel composite non-woven material.
The down jacket is mainly adopted as winter warm-keeping clothes at present, and has the problems of overstaffed upper body effect and influence on attractiveness. The aerogel composite non-woven material is used as a thermal insulation material, and has the characteristics of light weight, heat insulation and good thermal insulation; can be used for producing various warm-keeping clothes, including lower clothes.
The base fabric constituting the aerogel composite nonwoven material of the present invention is a nonwoven material. The raw material of the nonwoven material may be one or more of textile fibers. The raw materials can be terylene, viscose, polypropylene, cotton, chinlon, acrylic fiber and the like, but are not limited to the raw materials. The nonwoven material may be processed by spunlaid, spunlace, needle punching, chemical bonding, thermal bonding, or melt blowing, but is not limited thereto.
In the present invention, the aerogel is dispersed in an aqueous solution of an ammonium polycarboxylate compound. Since the aerogel cannot be directly dispersed in water. Aiming at the technical problem, the inventor obtains that the aerogel can be dispersed in the ammonium polycarboxylate aqueous solution through a large amount of analysis research and experimental comparison.
The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides an aerogel composite nonwoven material, which consists of a terylene spunlace nonwoven material layer and a silica aerogel layer. The aerogel composite nonwoven material has an areal density of 85g/m2。
The present embodiment also provides a method of preparing the aerogel composite nonwoven material, comprising the steps of: dispersing aerogel in an aqueous solution of an ammonium polycarboxylate compound to obtain an aerogel dispersion liquid. Adding an acrylic acid adhesive into the aerogel dispersion liquid, and mixing to obtain aerogel coating slurry. Coating the aerogel coating slurry on the surface of the non-woven material, drying, and baking at 170 ℃ for 1.5 minutes to obtain the aerogel composite non-woven material.
Example 2
This example provides an aerogel composite nonwoven material comprised of a polypropylene spunbond nonwoven layer and a silica aerogel layer. The aerogel composite nonwoven material has an areal density of 30g/m 2。
The present embodiment also provides a method of preparing the aerogel composite nonwoven material, comprising the steps of: dispersing aerogel in an aqueous solution of an ammonium polycarboxylate compound to obtain an aerogel dispersion liquid. Adding a polyurethane adhesive into the aerogel dispersion liquid, and mixing to obtain aerogel coating slurry. Coating the aerogel coating slurry on two sides of the non-woven material, drying, and baking at 135 ℃ for 5 minutes to obtain the aerogel composite non-woven material.
Example 3
The embodiment provides an aerogel composite nonwoven material, which consists of a terylene spunbonded nonwoven material layer and a silica aerogel layer. The aerogel composite nonwoven material has an areal density of 60g/m2。
The present embodiment also provides a method of preparing the aerogel composite nonwoven material, comprising the steps of: dispersing aerogel in an aqueous solution of an ammonium polycarboxylate compound to obtain an aerogel dispersion liquid. And adding a polyacrylic acid adhesive into the aerogel dispersion liquid, and mixing to obtain aerogel coating slurry. Coating the aerogel coating slurry on the surface of the non-woven material, drying, and baking at 150 ℃ for 3 minutes to obtain the aerogel composite non-woven material.
Example 4
The embodiment provides an aerogel composite nonwoven material, which consists of a terylene 80%/viscose 20% spunlace nonwoven material layer and a silica aerogel layer. The aerogel composite nonwoven material had an areal density of 95g/m2。
The present embodiment also provides a method of preparing the aerogel composite nonwoven material, comprising the steps of: dispersing aerogel in an aqueous solution of an ammonium polycarboxylate compound to obtain an aerogel dispersion liquid. And adding a polyacrylic acid adhesive into the aerogel dispersion liquid, and mixing to obtain aerogel coating slurry. Coating the aerogel coating slurry on two sides of the non-woven material, drying, and baking at 160 ℃ for 2.5 minutes to obtain the aerogel composite non-woven material.
Example 5
The embodiment provides an aerogel composite nonwoven material, which consists of a terylene needle punched nonwoven material layer and a silica aerogel layer. The aerogel composite nonwoven material has an areal density of 135g/m2。
The present embodiment also provides a method of preparing the aerogel composite nonwoven material, comprising the steps of: dispersing aerogel in an aqueous solution of an ammonium polycarboxylate compound to obtain an aerogel dispersion liquid. And adding a polyvinyl acetate adhesive into the aerogel dispersion liquid, and mixing to obtain aerogel coating slurry. Coating the aerogel coating slurry on the surface of the non-woven material, drying, and baking at 180 ℃ for 40 seconds to obtain the aerogel composite non-woven material.

Claims (8)

1. An aerogel composite nonwoven comprising a nonwoven layer and an aerogel layer, wherein the aerogel layer is disposed on the surface of the nonwoven layer.
2. The aerogel composite nonwoven of claim 1, wherein the aerogel composite nonwoven has an areal density of 30 to 150g/m2。
3. The aerogel composite nonwoven of claim 1, wherein the aerogel layer is disposed on either or both sides of the nonwoven layer.
4. The aerogel composite nonwoven material of claim 1, wherein the aerogel layer is a coating of aerogel.
5. The aerogel composite nonwoven material of claim 4, wherein the aerogel is a silica aerogel.
6. The aerogel composite nonwoven of claim 4, wherein the coating is an aqueous coating.
7. A method of making the aerogel composite nonwoven of any of claims 1-6, comprising:
(1) dispersing the aerogel in an aqueous solution of an ammonium polycarboxylate compound;
(2) preparing the aerogel solution into coating slurry;
(3) And coating the coating slurry on the surface of the non-woven material, and drying and baking to obtain the aerogel composite non-woven material.
8. The method of claim 7, wherein the curing temperature is 120-180 ℃ and the curing time is 0.5-5 min.
CN201910421188.XA 2019-05-21 2019-05-21 Aerogel composite non-woven material and preparation method thereof Pending CN111979780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910421188.XA CN111979780A (en) 2019-05-21 2019-05-21 Aerogel composite non-woven material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910421188.XA CN111979780A (en) 2019-05-21 2019-05-21 Aerogel composite non-woven material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN111979780A true CN111979780A (en) 2020-11-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113635628A (en) * 2021-09-01 2021-11-12 北京智恒立建科技有限公司 Heat-insulating fireproof material and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113635628A (en) * 2021-09-01 2021-11-12 北京智恒立建科技有限公司 Heat-insulating fireproof material and preparation method and application thereof

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Application publication date: 20201124

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