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CN113527772A - Aerogel latex foam as well as preparation method and application thereof - Google Patents

Aerogel latex foam as well as preparation method and application thereof Download PDF

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Publication number
CN113527772A
CN113527772A CN202110636700.XA CN202110636700A CN113527772A CN 113527772 A CN113527772 A CN 113527772A CN 202110636700 A CN202110636700 A CN 202110636700A CN 113527772 A CN113527772 A CN 113527772A
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parts
aerogel
agent
weight
latex
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CN202110636700.XA
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CN113527772B (en
Inventor
王天赋
韩荣荣
彭战军
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Shenzhen Aerogel Technology Co ltd
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Shenzhen Aerogel Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066Use of inorganic compounding ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2307/00Characterised by the use of natural rubber
    • C08J2307/02Latex
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00Characterised by the use of unspecified rubbers
    • C08J2321/02Latex

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention belongs to the technical field of latex foam, and particularly relates to aerogel latex foam as well as a preparation method and application thereof. The aerogel latex foam comprises the following components in parts by weight: 54-70 parts of latex, 3-20 parts of aerogel filler, 1-2 parts of accelerator, 1-3 parts of activating agent, 1-3 parts of vulcanizing agent, 1-2 parts of anti-aging agent, 3-5 parts of foaming agent, 1-3 parts of gelling agent and 1-5 parts of water. Compared with the traditional latex foam, the aerogel latex foam provided by the invention has better compression rebound rate and oxidation resistance.

Description

Aerogel latex foam as well as preparation method and application thereof
Technical Field
The invention belongs to the technical field of latex foam, and particularly relates to aerogel latex foam as well as a preparation method and application thereof.
Background
Since the 20 th 19 th century latex products were made directly from natural latex, the production of latex products has evolved as an important part of the rubber industry. The consumption of the rubber latex in the world in the 80 s accounts for about 10 percent of the total consumption of the rubber.
The production process of the latex product is completely different from the processing of the dry rubber, and does notLarge heavy machinery and a plurality of working procedures are needed, and conditions are provided for large-scale popularization and application of the composite material. Latex products are increasingly favored for their natural, highly breathable, ultra-silent, highly resilient properties, and the like, and are used in many applications such as mattresses, pillows, shoe soles, gloves, toys, hoses, and the like. The natural latex emulsion product has the defects of easy oxidation, high price, sensitization and the like after being contacted with ultraviolet rays. The synthesized latex emulsion product contains butadiene and styrene, can release benzene and formaldehyde gas at a certain temperature, and has great influence on human health. SiO 22The aerogel is an inorganic nano porous material, and is applied to the foaming process of the natural latex, so that the prepared latex product has the characteristics of oxidation resistance, low price and no harm to human bodies, and meanwhile, the price of the natural latex product can be greatly reduced, and the popularization of the natural latex product in daily life is promoted.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides aerogel latex foam as well as a preparation method and application thereof.
The technical scheme provided by the invention is as follows:
the aerogel latex foam comprises the following components in parts by weight: 54-70 parts of latex, 3-20 parts of aerogel filler, 1-2 parts of accelerator, 1-3 parts of activating agent, 1-3 parts of vulcanizing agent, 1-2 parts of anti-aging agent, 3-5 parts of foaming agent, 1-3 parts of gelling agent and 1-5 parts of water.
Compared with the traditional latex foam cotton, the aerogel latex foam cotton provided by the invention has better compression rebound rate and oxidation resistance.
Specifically, the accelerator is selected from any one or combination of several of 2-mercaptobenzothiazole zinc salt, zinc diethyldithiocarbamate, zinc N-ethyl-N-phenyldithiocarbamate or 2-mercaptobenzothiazole.
Specifically, the activating agent is zinc oxide.
Specifically, the vulcanizing agent is sulfur.
Specifically, the anti-aging agent is an anti-aging agent 2246 or an anti-aging agent 264.
Specifically, the foaming agent is any one or a combination of a plurality of gallic acid, potassium oleate, ammonium oleate and triethanolamine oleate.
Specifically, the gelling agent is any one or a combination of ammonium sulfate, ammonium chloride and sodium silicofluoride.
Further, the antibacterial agent also comprises 5-8 parts by weight of an antibacterial agent. The antimicrobial agent is selected from KP-F25, clove essential oil, lavender essential oil, rosemary essential oil, sage essential oil, thyme essential oil, silver ion antimicrobial agent, copper ion antimicrobial agent or zinc ion antimicrobial agent.
The invention also provides a preparation method of the aerogel latex foam, which comprises the following steps:
1) uniformly stirring 90-100 parts by weight of concentrated latex solution and 3-20 parts by weight of aerogel filler, and then sequentially adding 1-2 parts by weight of accelerator, 1-3 parts by weight of vulcanizing agent, 1-2 parts by weight of anti-aging agent and 3-5 parts by weight of foaming agent under uniform stirring, or further adding an antibacterial agent, wherein the concentrated latex solution is concentrated natural latex solution or concentrated synthetic latex solution, the amount of the latex is 54-70 parts by weight, namely, the solid content of the concentrated latex solution is 60-70 wt%;
2) adding 1-3 parts by weight of an activating agent under uniform stirring, and foaming at 140-160 ℃;
3) adding 1-3 parts by weight of gelling agent and 1-3 parts by weight of vulcanizing agent after foaming, and solidifying and vulcanizing;
4) and dehydrating and drying to obtain the aerogel latex foam. 1-5 parts by weight of residual water after dehydration and drying.
The aerogel filler is SiO2Aerogel or SiO with solid content of 5-20 wt%2Aerogel slurry is used as a raw material, and SiO in the aerogel slurry2The aerogel accounts for 3-20 parts by weight.
Specifically, the weight part of the concentrated latex is 90-95 parts, and the solid content of the concentrated latex is 63-65 wt%.
The invention also provides application of the aerogel latex foam for manufacturing: mattress, pillow core, sole, gloves, toy or rubber tube. The invention has the beneficial effects that:
1、SiO2the aerogel has low heat conductivity coefficient and low density, and can improve the heat preservation and insulation performance of the latex foam when being added into the latex foam. Therefore, it is especially suitable for making mattress, pillow core, sole, gloves and hose.
2、SiO2The aerogel belongs to an inorganic material, is non-combustible in the air, and can be added into the latex foam to improve the fireproof performance of the latex foam. Thus being particularly suitable for manufacturing mattresses, pillow cores, shoe soles, gloves, toys or rubber tubes.
3. Adding SiO into latex foam2The aerogel has enhanced tensile strength and improved compression rebound rate. And the bubbles in the latex foam become more uniform due to the nucleation effect of the aerogel, the surface wrinkles and the mesoporous structure to form slits, and the energy barrier required by the nucleation of the bubbles on the surface is reduced, so that the average pore diameter of the foam is reduced. Therefore, it is especially suitable for making mattress, pillow core and sole.
4. The antioxidant is added into the natural latex, so that the production cost of the natural latex product can be reduced, the oxidation resistance of the natural latex product under ultraviolet irradiation can be improved, and the service life of the natural latex product can be prolonged. Thus being particularly suitable for manufacturing rubber hoses.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
1) Uniformly stirring 90 parts by weight of concentrated latex solution and 10 parts by weight of aerogel filler, and then sequentially adding 1 part by weight of accelerator, 1 part by weight of vulcanizing agent, 1 part by weight of anti-aging agent and 3 parts by weight of foaming agent under uniform stirring, wherein the solid content of the concentrated latex solution is 65 wt%;
2) then adding 1 weight part of activating agent under uniform stirring, and foaming at 150 ℃;
3) adding 1 weight part of gelling agent and 1 weight part of vulcanizing agent after foaming, and solidifying and vulcanizing;
4) and dehydrating and drying to obtain the aerogel latex foam.
The solid content of the concentrated latex solution is 65 percent;
the aerogel filler is SiO2An aerogel;
the accelerator is 2-mercaptobenzothiazole zinc salt;
the activating agent is zinc oxide;
the vulcanizing agent is sulfur;
the anti-aging agent is an anti-aging agent 2246;
the foaming agent is gallic acid;
the gelling agent is ammonium sulfate.
Example 2
1) Uniformly stirring 90 parts by weight of concentrated latex solution and 15 parts by weight of aerogel filler, and then sequentially adding 1 part by weight of accelerator, 1 part by weight of vulcanizing agent, 1 part by weight of anti-aging agent and 3 parts by weight of foaming agent under uniform stirring, wherein the solid content of the concentrated latex solution is 65%;
2) then adding 1 weight part of activating agent under uniform stirring, and foaming at 150 ℃;
3) adding 1 weight part of gelling agent and 1 weight part of vulcanizing agent after foaming, and solidifying and vulcanizing;
4) and dehydrating and drying to obtain the aerogel latex foam.
The solid content of the concentrated latex solution is 65 percent;
the aerogel filler is SiO2An aerogel;
the accelerant is zinc diethyl dithiocarbamate;
the activating agent is zinc oxide;
the vulcanizing agent is sulfur;
the anti-aging agent is an anti-aging agent 2246;
the foaming agent is potassium oleate;
the gelling agent is ammonium chloride.
Example 3
1) Uniformly stirring 95 parts by weight of concentrated latex solution and 15 parts by weight of aerogel filler, and then sequentially adding 1.5 parts by weight of accelerator, 1.5 parts by weight of vulcanizing agent, 1 part by weight of anti-aging agent and 4 parts by weight of foaming agent under uniform stirring, wherein the solid content of the concentrated latex solution is 63 wt%;
2) then adding 1 weight part of activating agent under uniform stirring, and foaming at 150 ℃;
3) after foaming, adding 2 parts by weight of gelling agent and 2 parts by weight of vulcanizing agent, and solidifying and vulcanizing;
4) and dehydrating and drying to obtain the aerogel latex foam.
The solid content of the concentrated latex solution is 63 wt%;
the aerogel filler is SiO2An aerogel;
the accelerator is zinc N-ethyl-N-phenyl dithiocarbamate;
the activating agent is zinc oxide;
the vulcanizing agent is sulfur;
the anti-aging agent is an anti-aging agent 264;
the foaming agent is ammonium oleate;
the gelling agent is sodium silicofluoride.
Comparative example 1
The test object was latex foam purchased from south ton idefu latex products, inc.
Comparison test of important properties
Compression rebound resilience: the test method is a compression permanent deformation method, GB/T6669-2001;
weather resistance: the test method is a method for measuring the change of color, appearance and physical properties of the rubber material after the rubber material is exposed to natural or artificial climate, GB/T3511-;
coefficient of thermal conductivity: the test method is a heat flow meter method, GB/T10295-;
fire rating: the test method is a combustion method, GB/T8624-;
Figure BDA0003106046150000061
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The aerogel latex foam is characterized by comprising the following components in parts by weight: 54-70 parts of latex, 3-20 parts of aerogel filler, 1-2 parts of accelerator, 1-3 parts of activating agent, 1-3 parts of vulcanizing agent, 1-2 parts of anti-aging agent, 3-5 parts of foaming agent, 1-3 parts of gelling agent and 1-5 parts of water.
2. The aerogel latex foam of claim 1, wherein: the accelerator is selected from any one or combination of 2-mercaptobenzothiazole zinc salt, zinc diethyl dithiocarbamate, zinc N-ethyl-N-phenyl dithiocarbamate or 2-mercaptobenzothiazole.
3. The aerogel latex foam of claim 1, wherein: the activating agent is zinc oxide.
4. The aerogel latex foam of claim 1, wherein: the vulcanizing agent is sulfur.
5. The aerogel latex foam of claim 1, wherein: the anti-aging agent is an anti-aging agent 2246 or an anti-aging agent 264.
6. The aerogel latex foam of claim 1, wherein: the foaming agent is one or a combination of more of gallic acid, potassium oleate, ammonium oleate or triethanolamine oleate.
7. The aerogel latex foam of claim 1, wherein: the gelling agent is any one or combination of ammonium sulfate, ammonium chloride or sodium silicofluoride.
8. The aerogel latex foam as claimed in any one of claims 1 to 7, wherein: and 5-8 parts of an antibacterial agent.
9. A method for preparing aerogel latex foam according to any one of claims 1 to 7, comprising the steps of:
1) uniformly stirring 90-100 parts by weight of concentrated latex solution and 3-20 parts by weight of aerogel filler, and sequentially adding 1-2 parts by weight of accelerator, 1-3 parts by weight of vulcanizing agent, 1-2 parts by weight of anti-aging agent and 3-5 parts by weight of foaming agent under uniform stirring, wherein the concentrated latex solution is concentrated natural latex solution or concentrated synthetic latex solution, and the amount of the latex solution is 54-70 parts by weight;
2) adding 1-3 parts by weight of an activating agent under uniform stirring, and foaming at 140-160 ℃;
3) adding 1-3 parts by weight of gelling agent and 1-3 parts by weight of vulcanizing agent after foaming, and solidifying and vulcanizing;
4) and dehydrating and drying to obtain the aerogel latex foam.
10. Use of aerogel latex foam according to any one of claims 1 to 8, for the production of: mattress, pillow core, sole, gloves, toy or rubber tube.
CN202110636700.XA 2021-06-08 2021-06-08 Aerogel latex foam and preparation method and application thereof Active CN113527772B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119119598A (en) * 2024-07-23 2024-12-13 佛山尚尚雅纺织品有限公司 Antibacterial sleep-aiding latex pillow and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120326071A1 (en) * 2010-02-03 2012-12-27 Saint-Gobain Isover High-performance thermal insulation materials
CN109337154A (en) * 2018-10-17 2019-02-15 长沙小如信息科技有限公司 A kind of high-strength mattress material and preparation method thereof
JP2020019925A (en) * 2018-07-18 2020-02-06 株式会社イノアック技術研究所 Aerogel composite and manufacturing method therefor
CN110982130A (en) * 2019-11-13 2020-04-10 惠州市高峰创兴实业有限公司 Preparation method of antibacterial and mildewproof sponge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120326071A1 (en) * 2010-02-03 2012-12-27 Saint-Gobain Isover High-performance thermal insulation materials
JP2020019925A (en) * 2018-07-18 2020-02-06 株式会社イノアック技術研究所 Aerogel composite and manufacturing method therefor
CN109337154A (en) * 2018-10-17 2019-02-15 长沙小如信息科技有限公司 A kind of high-strength mattress material and preparation method thereof
CN110982130A (en) * 2019-11-13 2020-04-10 惠州市高峰创兴实业有限公司 Preparation method of antibacterial and mildewproof sponge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孙鸿魁: "《塑型化装艺术》", vol. 1, 31 December 1984, 中国电影出版社, pages: 69 - 73 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119119598A (en) * 2024-07-23 2024-12-13 佛山尚尚雅纺织品有限公司 Antibacterial sleep-aiding latex pillow and preparation method thereof

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