CN112239529A - Slow-resilience sponge and preparation process thereof - Google Patents
Slow-resilience sponge and preparation process thereof Download PDFInfo
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- CN112239529A CN112239529A CN201910656486.7A CN201910656486A CN112239529A CN 112239529 A CN112239529 A CN 112239529A CN 201910656486 A CN201910656486 A CN 201910656486A CN 112239529 A CN112239529 A CN 112239529A
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- slow rebound
- polyether polyol
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention aims to overcome the defects of the existing product and provides a slow rebound sponge and a preparation process thereof, wherein the slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight: 65-75 parts of gas-expanding polyether polyol; 20-30 parts of polymer polyether polyol; 5 parts of slow rebound polyether polyol; 30-40 parts of diphenylmethane diisocyanate. The invention solves the problems that the traditional slow rebound sponge is greatly influenced by temperature difference, improves the stability of the traditional slow rebound sponge, does not harden at the temperature lower than 18 ℃, still has supporting force at the temperature of 40 ℃, simultaneously can ensure that the original service life of the slow rebound sponge is not reduced, improves the comprehensive performance of the slow rebound sponge, and ensures that products produced from the slow rebound sponge have higher market competitiveness so as to finally improve the comprehensive performance of the slow rebound sponge.
Description
Technical Field
The invention relates to the technical field of sponge products, in particular to a slow-rebound sponge and a preparation process thereof.
Background
The slow rebound sponge has soft hand feeling, when the slow rebound sponge is held by hands, the palm of a user can feel continuously empty, if sand leaks empty, no expansion force comes out, and the holding time is long and not too tired; when lying on the slow rebound sponge cushion, people can feel a gradual sedimentation process like sinking into a puddle and hear a fine sound of continuous flow of gas in the slow rebound sponge; when people sit on the slow-recovery sponge waist pad, the pad starts to deform continuously, then the conflict feeling disappears, and the waist soreness and the difficult pursuit shadow which should appear after long-time sitting are caused. In China, the breadth is broad, the climate difference is huge, the temperature difference in winter and summer is more than 30 ℃, the traditional slow-resilience sponge is greatly influenced by the temperature difference, the softness is increased when the temperature is high, and the supporting force is insufficient; when the temperature is low, the hardness and softness are reduced.
Disclosure of Invention
The invention aims to overcome the defects of the existing product, provides a slow-rebound sponge and a preparation process thereof, and solves the problems.
The problem addressed by the present invention is achieved by:
the slow rebound sponge and the preparation process thereof are characterized in that the slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
65-75 parts of gas-expanding polyether polyol; 20-30 parts of polymer polyether polyol; 5 parts of slow rebound polyether polyol; 30-40 parts of diphenylmethane diisocyanate.
The slow rebound sponge comprises the following raw materials in parts by weight:
4-5 parts of water; 2-3 parts of silicone oil; 1-2 parts of triethylene diamine; a3000.1-0.5 part; a330.1-0.5 part.
The molecular weight of the gas-swelling polyether polyol is 1621, the molecular weight of the polymer polyether polyol is 3630, and the molecular weight of the slow rebound polyether polyol is 2000.
The slow rebound sponge, wherein the silicone oil is slow rebound silicone oil L580, the A300 comprises metallic tin, and the A33 comprises metallic ammonium.
A method of making a slow rebound sponge, wherein the method comprises the steps of:
A. according to the predetermined weight portions, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, A300 and A33
Simultaneously injecting and mixing, wherein the stirring speed is 3000-.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
The preparation process of the slow rebound sponge comprises the step of conveying the mixture into a die through a pipeline for foaming, wherein the flow rate of the mixture in the pipeline is 150-170 kg/min.
Has the advantages that: the invention provides a slow-rebound sponge and a preparation process thereof, and the original sponge formula is adopted, so that the influence of temperature on the softness of the slow-rebound sponge is perfectly solved, the slow-rebound sponge does not become hard at the temperature lower than 18 ℃, the slow-rebound sponge still has supporting force at the temperature of 40 ℃, the original service life of the slow-rebound sponge is not reduced, the comprehensive performance of the slow-rebound sponge is improved, and the product produced by using the slow-rebound sponge as a raw material has higher market competitiveness.
Detailed Description
The preparation process of the present invention is described in further detail below, but the scope of the present invention is not limited to the following.
The invention provides a slow rebound sponge and a preparation process thereof, wherein the slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
65-75 parts of gas-expanding polyether polyol; 20-30 parts of polymer polyether polyol; 5 parts of slow rebound polyether polyol; 30-40 parts of diphenylmethane diisocyanate.
The slow rebound sponge comprises the following raw materials in parts by weight:
4-5 parts of water; 2-3 parts of silicone oil; 1-2 parts of triethylene diamine; a3000.1-0.5 part; a330.1-0.5 part.
The slow rebound sponge is prepared by selecting the air-swelling polyether polyol: polymer polyether polyol: the slow-rebound polyether polyol three foaming materials are prepared according to the weight part ratio of 70:25:5, and then the diphenylmethane diisocyanate is added to increase the elasticity. On the basis of the above, 4-5 parts of water is added; 2-3 parts of silicone oil; 1-2 parts of triethylene diamine; a3000.1-0.5 part; 330.1-0.5 part of A, wherein the molecular weight of the gas-swelling polyether polyol is 1621, the molecular weight of the polymer polyether polyol is 3630, the molecular weight of the slow rebound polyether polyol is 2000, the A300 comprises metal tin, and the A33 comprises metal ammonium. Further optimizing the characteristics of the slow rebound sponge. Compared with the existing product, the slow-rebound sponge has better stability, so that the user experience of the product is improved, and the market competitiveness of the product is also improved.
A method of making a slow rebound sponge, wherein the method comprises the steps of:
A. according to the preset weight parts, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, the A300 and the A33 are simultaneously injected, mixed and stirred, and the stirring speed is 3000-3500 rpm.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
The preparation process of the slow rebound sponge comprises the step of conveying the mixture into a die through a pipeline for foaming, wherein the flow rate of the mixture in the pipeline is 150-170 kg/min.
The slow rebound sponge of the present invention is further illustrated by the following examples.
Example 1
The slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
68 parts of gas-expanding polyether polyol;
24 parts of polymer polyether polyol;
5 parts of slow rebound polyether polyol;
33 parts of diphenylmethane diisocyanate;
4 parts of water;
2.5 parts of silicone oil;
1.3 parts of triethylene diamine;
a3000.3 parts;
and A330.3 parts.
The molecular weight of the gas-swelling polyether polyol is 1621, the molecular weight of the polymer polyether polyol is 3630, and the molecular weight of the slow rebound polyether polyol is 2000.
The slow rebound sponge is prepared from the silicone oil L580.
A method of making a slow rebound sponge, wherein the method comprises the steps of:
A. according to the predetermined weight portions, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, A300 and A33
Simultaneously, the mixture is injected and mixed, and the stirring speed is 3200 revolutions per minute.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
The preparation process of the slow rebound sponge comprises the step of conveying the mixture into a die through a pipeline for foaming, wherein the flow rate of the mixture in the pipeline is 150 kg/min.
Example 2
The slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
70 parts of gas-swelling polyether polyol;
25 parts of polymer polyether polyol;
5 parts of slow rebound polyether polyol;
34 parts of diphenylmethane diisocyanate;
4.3 parts of water;
2.6 parts of silicone oil;
1.2 parts of triethylene diamine;
a3000.3 parts;
and A330.3 parts.
The molecular weight of the gas-swelling polyether polyol is 1621, the molecular weight of the polymer polyether polyol is 3630, and the molecular weight of the slow rebound polyether polyol is 2000.
The slow rebound sponge is prepared from the silicone oil L580.
A method of making a slow rebound sponge, wherein the method comprises the steps of:
A. according to the weight parts, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, A300 and A33
Simultaneously, the mixture is injected and mixed, and the stirring speed is 3500 rpm.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
The preparation process of the slow rebound sponge comprises the step of conveying the mixture into a die through a pipeline for foaming, wherein the flow rate of the mixture in the pipeline is 160 kg/min.
Example 3
The slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
73 parts of gas-swelling polyether polyol;
27 parts of polymer polyether polyol;
5 parts of slow rebound polyether polyol;
38 parts of diphenylmethane diisocyanate;
4.5 parts of water;
2.8 parts of silicone oil;
1.4 parts of triethylene diamine;
a3000.3 parts;
and A330.3 parts.
The molecular weight of the gas-swelling polyether polyol is 1621, the molecular weight of the polymer polyether polyol is 3630, and the molecular weight of the slow rebound polyether polyol is 2000.
The slow rebound sponge is prepared from the silicone oil L580.
A method of making a slow rebound sponge, wherein the method comprises the steps of:
A. according to the weight parts, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, A300 and A33
Simultaneously, the mixture is injected and mixed, and the stirring speed is 3500 rpm.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
The preparation process of the slow rebound sponge comprises the step of conveying the mixture into a die through a pipeline for foaming, wherein the flow rate of the mixture in the pipeline is 170 kg/min.
According to the invention, silica gel powder is not added, so that the solar photovoltaic panel has better heat dissipation performance, and a user can feel ventilation and comfort when using the solar photovoltaic panel in summer while ensuring the stability of the solar photovoltaic panel.
The foregoing is illustrative of embodiments of the present invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that the invention is not to be considered as limited to the exclusion of other embodiments, and that it may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The slow rebound sponge and the preparation process thereof are characterized in that the slow rebound sponge is prepared by mixing and foaming the following raw materials in parts by weight:
65-75 parts of gas-expanding polyether polyol; 20-30 parts of polymer polyether polyol; 5 parts of slow rebound polyether polyol; 30-40 parts of diphenylmethane diisocyanate.
2. The slow rebound sponge according to claim 1, further comprising the following raw materials in parts by weight:
4-5 parts of water; 2-3 parts of silicone oil; 1-2 parts of triethylene diamine; a3000.1-0.5 part; a330.1-0.5 part.
3. A slow rebound sponge as claimed in claims 1 to 2 wherein the gas swelling polyether polyol has a molecular weight of 1621, the polymer polyether polyol has a molecular weight of 3630 and the slow rebound polyether polyol has a molecular weight of 2000.
4. A slow rebound sponge according to claims 1 to 2 wherein the silicone oil is slow rebound silicone oil L580.
5. A method for preparing a slow rebound sponge according to claims 1 to 4 wherein the method steps comprise:
A. according to the preset weight parts, the gas-swelling polyether polyol, the polymer polyether polyol, the slow rebound polyether polyol, the diphenylmethane diisocyanate, the water, the silicone oil, the triethylene diamine, the A300 and the A33 are injected, mixed and stirred simultaneously.
B. And immediately conveying the stirred mixture to a mould for foaming to prepare the slow-resilience sponge.
6. The method for preparing a slow rebound sponge as claimed in claim 5 wherein the stirring speed is 3000-3500 rpm.
7. The method for preparing a slow rebound sponge as claimed in claim 5, wherein the mixture is transported to the mold through a pipeline and foamed, and the flow rate of the mixture in the pipeline is 150 and 170 kg/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910656486.7A CN112239529A (en) | 2019-07-19 | 2019-07-19 | Slow-resilience sponge and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910656486.7A CN112239529A (en) | 2019-07-19 | 2019-07-19 | Slow-resilience sponge and preparation process thereof |
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| CN112239529A true CN112239529A (en) | 2021-01-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999363A (en) * | 2021-11-30 | 2022-02-01 | 江苏钟山新材料有限公司 | Preparation method of high-bearing low-temperature insensitive slow-rebound sponge |
| CN115260744A (en) * | 2022-08-24 | 2022-11-01 | 中山康德智能家居有限公司 | Memory cotton with soft inner surface and supporting force as well as production process and production equipment thereof |
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| CN115260744A (en) * | 2022-08-24 | 2022-11-01 | 中山康德智能家居有限公司 | Memory cotton with soft inner surface and supporting force as well as production process and production equipment thereof |
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Application publication date: 20210119 |