CN104193954A - Method for preparing memory sponge - Google Patents
Method for preparing memory sponge Download PDFInfo
- Publication number
- CN104193954A CN104193954A CN201410452160.XA CN201410452160A CN104193954A CN 104193954 A CN104193954 A CN 104193954A CN 201410452160 A CN201410452160 A CN 201410452160A CN 104193954 A CN104193954 A CN 104193954A
- Authority
- CN
- China
- Prior art keywords
- memory foam
- stage
- preparation
- diphenylmethanediisocyanate
- foam according
- 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.)
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
-
- 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
- C08G2101/00—Manufacture of cellular products
-
- 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
- C08G2280/00—Compositions for creating shape memory
Abstract
The invention relates to the field of shoe materials, and in particular relates to a method for preparing memory sponge. The method mainly comprises the following steps: premixing, uniformly mixing at high speed, milky-whitening, foaming and aging. The memory sponge prepared by using the method is poor in temperature sensitivity, so that the hardness does not change along with the change of temperature or is slightly changed. Therefore, after the memory sponge which is prepared by using the method is made into a shoe, the wearing space of the shoe is not affected, and thus not only is the manufacturing cost of the shoe not increased, but also the shoe is relatively comfortable to wear for wearers.
Description
Technical field
The present invention relates to a kind of formula for footwear material field, specifically a kind of preparation method of memory foam; This memory foam is mainly used in the making of shoe-pad.
Background technology
In footwear material field, a lot of for the material of making, memory foam is wherein a kind of.At present, have the memory foam for footwear material on market, but existing memory foam is stronger for the susceptibility of temperature, can occur along with temperature variation strong soft or hard changes, and can not play temperature variation and soft or hard does not change or change very little object.This has a strong impact on the quality of making footwear section product, and as shoes can diminish because of memory foam hardening internal space in winter, otherwise become large because of deliquescing internal space summer.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of preparation method to the very weak memory foam formula of temperature sensitivity is provided.
The present invention is achieved through the following technical solutions,
A preparation method for memory foam, mainly comprises the following steps:
First, premix, is about to polyether glycol and auxiliary and pours that in the container that foams, to carry out stirring at low speed even into;
Secondly, evenly mix at a high speed, polyether glycol and adjuvant intermixture by stirring at low speed after are evenly poured in diphenylmethanediisocyanate, and then high speed is evenly mixed;
Then, in the milky white stage, after evenly mixing at a high speed, the first stage of reaction is operable time during this period of time, and time range is 5～30s, and the liquid now mixing also has certain fluidity;
Afterwards, foaming stages, the milky white stage has just entered into the second step of reaction later, and foamed time scope is 40～85s, and this stage mixing liquid is progressively become solid-state from liquid state, form foams, has certain support strength;
Finally, maturation stage, this stage time range is at room temperature 3～6d; Maturation stage is just completely slaking, i.e. molded memory foam later.
In above-mentioned operation, described auxiliary plays and adds fast response in whole foaming process, increases foam surface flatness, makes the effect of foam perforate venting one's pent-up feelings and adjusting foam color.
Preferably, described memory foam is prepared from by the following raw material of percentage ratio meter by weight:
Polyether glycol 51.3%-54%
Diphenylmethanediisocyanate 43%-46%
Auxiliary 2.6%-3%.
Preferably, described diphenylmethanediisocyanate is diphenylmethanediisocyanate 6502.
As the further improvement of such scheme, described auxiliary is prepared from by the following raw material of percentage ratio meter by weight:
Further, described amine type accelerator is amine-ethylene glycol mixture.
Further, described tin catalyst T-9 is the sour sub-tin of good fortune.
Further, described pore-creating agent 1900 is one to be selected from the material in following group: polypropylene, vinyl alcohol.
In above-mentioned operation, described auxiliary plays and adds fast response in whole foaming process, increases foam surface flatness, makes the effect of foam perforate venting one's pent-up feelings and adjusting foam color.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: memory foam that this invention is made is due to very weak to temperature sensitivity, its soft durometer is variation with temperature and change or change very little not substantially.Therefore, the memory foam that utilizes this method to make is made after footwear, can not affect the space of wearing of footwear, so that not only cost of manufacture can not increase, and makes wearer more comfortable.
Embodiment
Below in conjunction with specific embodiment, describe the present invention, but not as limitation of the invention.
Embodiment 1, and memory foam formula is prepared from by the following raw material of percentage ratio meter by weight:
| Composition | Weight percent |
| Polyether glycol | 51.3％ |
| Diphenylmethanediisocyanate | 46％ |
| Auxiliary | 2.7％ |
Wherein, composition is prepared from by the following raw material of percentage ratio meter by weight respectively in above-mentioned three:
(1), for polyether glycol,
| Composition | Weight percent |
| Polyether glycol 5613 | 30％ |
| Polyether glycol GLR2000 | 30％ |
| Polyether glycol 89796 | 40％ |
(2), for diphenylmethanediisocyanate, described diphenylmethanediisocyanate is diphenylmethanediisocyanate 6502;
| Composition | Weight percent |
| Diphenylmethanediisocyanate 6502 | 100％ |
(3), for auxiliary,
| Composition | Weight percent |
| Silicone surfactant L580 | 6.3％ |
| Amine type accelerator | 1.05％ |
| The sour sub-tin of good fortune | 2.1％ |
| Polypropylene | 42.11％ |
| Black pigment PM928 | 31.5％ |
| Water | 16.94％ |
Described amine type accelerator is amine-ethylene glycol mixture.
Embodiment 2, and memory foam formula is prepared from by the following raw material of percentage ratio meter by weight:
| Composition | Weight percent |
| Polyether glycol | 54％ |
| Diphenylmethanediisocyanate | 43％ |
| Auxiliary | 3％ |
Wherein, composition is prepared from by the following raw material of percentage ratio meter by weight respectively in above-mentioned three:
(1), for polyether glycol,
| Composition | Weight percent |
| Polyether glycol 5613 | 40％ |
| Polyether glycol GLR2000 | 30％ |
| Polyether glycol 89796 | 30％ |
(2), for diphenylmethanediisocyanate, described diphenylmethanediisocyanate is diphenylmethanediisocyanate 6502;
| Composition | Weight percent |
| Diphenylmethanediisocyanate 6502 | 100％ |
(3), for auxiliary,
| Composition | Weight percent |
| Silicone surfactant L580 | 10.83％ |
| Amine type accelerator | 1.05％ |
| The sour sub-tin of good fortune | 2.1％ |
| Vinyl alcohol | 36.98％ |
| Black pigment PM928 | 31.5％ |
| Water | 17.54％ |
Described amine type accelerator is amine-ethylene glycol mixture.
Embodiment 3, and memory foam formula is prepared from by the following raw material of percentage ratio meter by weight:
| Composition | Weight percent |
| Polyether glycol | 52.4％ |
| Diphenylmethanediisocyanate | 45％ |
| Auxiliary | 2.6％ |
Wherein, composition is prepared from by the following raw material of percentage ratio meter by weight respectively in above-mentioned three:
(1), for polypropylene glycol,
| Composition | Weight percent |
| Polyether glycol 5613 | 40％ |
| Polyether glycol GLR2000 | 40％ |
| Polyether glycol 89796 | 20％ |
(2), for diphenylmethanediisocyanate, described diphenylmethanediisocyanate is diphenylmethanediisocyanate 6502;
| Composition | Weight percent |
| Diphenylmethanediisocyanate 6502 | 100％ |
(3), for auxiliary,
| Composition | Weight percent |
| Silicone surfactant L580 | 10.83％ |
| Amine type accelerator | 1.05％ |
| The sour sub-tin of good fortune | 2.1％ |
| Vinyl alcohol | 42.11％ |
| Black pigment PM928 | 31.5％ |
| Water | 12.41 |
Described amine type accelerator is amine-ethylene glycol mixture.
Above three embodiment, all make memory foam by following operation:
1, premix, is about to polyether glycol and auxiliary and pours that in the container that foams, to carry out stirring at low speed even into;
2, evenly mix at a high speed, polyether glycol and adjuvant intermixture by stirring at low speed after are evenly poured in diphenylmethanediisocyanate, and then high speed is evenly mixed;
3, the milky white stage, after evenly mixing at a high speed, the first stage of reaction is operable time during this period of time, and time range is 5～30s, and the liquid now mixing also has certain fluidity;
4, foaming stages, the milky white stage has just entered into the second step of reaction later, and foamed time scope is 40～85s, and this stage mixing liquid is progressively become solid-state from liquid state, form foams, has certain support strength;
5, maturation stage, this stage time range is at room temperature 3～6d;
6, moulding, maturation stage is just completely slaking, i.e. molded memory foam later.
In above-mentioned operation, described auxiliary plays and adds fast response in whole foaming process, increases foam surface flatness, makes the effect of foam perforate venting one's pent-up feelings and adjusting foam color.
Memory foam that this invention is made is due to very weak to temperature sensitivity, and its soft durometer is variation with temperature and change or change very little not substantially.Therefore, the memory foam that utilizes this method to make is made after footwear, can not affect the space of wearing of footwear, so that not only cost of manufacture can not increase, and makes wearer more comfortable.
Below the present invention is described in detail, but apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present invention that appended claims limits.
Claims (7)
1. a preparation method for memory foam, is characterized in that, mainly comprises the following steps:
First, premix, is about to polyether glycol and auxiliary and pours that in the container that foams, to carry out stirring at low speed even into;
Secondly, evenly mix at a high speed, polyether glycol and adjuvant intermixture by stirring at low speed after are evenly poured in diphenylmethanediisocyanate, and then high speed is evenly mixed;
Then, in the milky white stage, after evenly mixing at a high speed, the first stage of reaction is operable time during this period of time, and time range is 5 ~ 30s, and the liquid now mixing also has certain fluidity;
Afterwards, foaming stages, the milky white stage has just entered into the second step of reaction later, and foamed time scope is 40 ~ 85s, and this stage mixing liquid is progressively become solid-state from liquid state, form foams, has certain support strength;
Finally, maturation stage, this stage time range is at room temperature 3 ~ 6d; Maturation stage is just completely slaking, i.e. molded memory foam later.
2. the preparation method of a kind of memory foam according to claim 1, is characterized in that, described memory foam is prepared from by the following raw material of percentage ratio meter by weight:
Polyether glycol 51.3%-54%
Diphenylmethanediisocyanate 43%-46%
Auxiliary 2.6%-3%.
3. the preparation method of a kind of memory foam according to claim 2, is characterized in that, described diphenylmethanediisocyanate is diphenylmethanediisocyanate 6502.
4. the preparation method of a kind of memory foam according to claim 2, is characterized in that, described auxiliary is prepared from by the following raw material of percentage ratio meter by weight:
Silicone surfactant L580 6.3%-10.83%
Amine type accelerator 0.93%-1.05%
Tin catalyst T-9 1.06%-2.1%
Pore-creating agent 1900 36.98%-42.11%
Black pigment PM928 26.37%-31.5%
Water 12.41%-17.54%.
5. the preparation method of a kind of memory foam according to claim 4, is characterized in that, described amine type accelerator is amine-ethylene glycol mixture.
6. the preparation method of a kind of memory foam according to claim 4, is characterized in that, described tin catalyst T-9 is the sour sub-tin of good fortune.
7. the preparation method of a kind of memory foam according to claim 4, is characterized in that, described pore-creating agent 1900 is one to be selected from the material in following group: polypropylene, vinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452160.XA CN104193954A (en) | 2014-09-05 | 2014-09-05 | Method for preparing memory sponge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452160.XA CN104193954A (en) | 2014-09-05 | 2014-09-05 | Method for preparing memory sponge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104193954A true CN104193954A (en) | 2014-12-10 |
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ID=52079345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452160.XA Pending CN104193954A (en) | 2014-09-05 | 2014-09-05 | Method for preparing memory sponge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104193954A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109705296A (en) * | 2018-11-29 | 2019-05-03 | 南通真馨家纺有限公司 | Non- warming zero pressure molding memory foam, production technology and its application method |
| CN112205714A (en) * | 2020-09-18 | 2021-01-12 | 上海澳翔鞋业有限公司 | Multifunctional acupoint physiotherapy insole and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298490A (en) * | 2008-06-13 | 2008-11-05 | 陈春潮 | Memory foam and production method thereof |
| CN101392049A (en) * | 2008-10-31 | 2009-03-25 | 北京科聚化工新材料有限公司 | All-MDI polyurethane low resilience urethane foam resilient foam |
| CN102643404A (en) * | 2012-04-28 | 2012-08-22 | 德清舒华泡沫座椅有限公司 | Slow-rebound polyether polyurethane sponge |
| CN102796240A (en) * | 2012-08-17 | 2012-11-28 | 景光华 | Memory sponge formula |
| CN103030782A (en) * | 2012-12-05 | 2013-04-10 | 江苏恒康家居科技股份有限公司 | Slow-rebound memory sponge insole material |
| US20130178550A1 (en) * | 2010-09-29 | 2013-07-11 | Dow Global Technologies Llc | Process for making high airflow and low compression set viscoelastic polyurethane foam |
-
2014
- 2014-09-05 CN CN201410452160.XA patent/CN104193954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298490A (en) * | 2008-06-13 | 2008-11-05 | 陈春潮 | Memory foam and production method thereof |
| CN101392049A (en) * | 2008-10-31 | 2009-03-25 | 北京科聚化工新材料有限公司 | All-MDI polyurethane low resilience urethane foam resilient foam |
| US20130178550A1 (en) * | 2010-09-29 | 2013-07-11 | Dow Global Technologies Llc | Process for making high airflow and low compression set viscoelastic polyurethane foam |
| CN102643404A (en) * | 2012-04-28 | 2012-08-22 | 德清舒华泡沫座椅有限公司 | Slow-rebound polyether polyurethane sponge |
| CN102796240A (en) * | 2012-08-17 | 2012-11-28 | 景光华 | Memory sponge formula |
| CN103030782A (en) * | 2012-12-05 | 2013-04-10 | 江苏恒康家居科技股份有限公司 | Slow-rebound memory sponge insole material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109705296A (en) * | 2018-11-29 | 2019-05-03 | 南通真馨家纺有限公司 | Non- warming zero pressure molding memory foam, production technology and its application method |
| CN112205714A (en) * | 2020-09-18 | 2021-01-12 | 上海澳翔鞋业有限公司 | Multifunctional acupoint physiotherapy insole and preparation method thereof |
| CN112205714B (en) * | 2020-09-18 | 2021-11-26 | 上海澳翔鞋业有限公司 | Multifunctional acupoint physiotherapy insole and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |