CN114479004A - Anti-corrosion sponge and preparation method thereof - Google Patents
Anti-corrosion sponge and preparation method thereof Download PDFInfo
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- CN114479004A CN114479004A CN202210185166.XA CN202210185166A CN114479004A CN 114479004 A CN114479004 A CN 114479004A CN 202210185166 A CN202210185166 A CN 202210185166A CN 114479004 A CN114479004 A CN 114479004A
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- diphenylmethane diisocyanate
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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
- C08G18/48—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
- C08G18/48—Polyethers
- C08G18/4891—Polyethers modified with higher fatty oils or their acids or by resin acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Abstract
The invention relates to the technical field of sponge materials, in particular to an anti-corrosion sponge and a preparation method thereof, wherein the anti-corrosion sponge is prepared from the following raw materials in parts by weight: 80-100 parts of polyether polyol, 50-70 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 1-3 parts of silicone, 3-5 parts of flame-retardant epoxy soybean oil-based polyether polyol, 4-8 parts of deionized water, 2-4 parts of bis (dimethylaminoethyl) ether and 151-3 parts of GLK. According to the invention, the graphene oxide is added to modify the 4,4' -diphenylmethane diisocyanate, so that the acid and alkali resistance and corrosion resistance of the sponge material are improved, on one hand, the compatibility among all components in a system can be effectively improved, and on the other hand, the affinity between the sponge material and strong acid and strong alkali is poor, so that the whole sponge material has better corrosion resistance.
Description
Technical Field
The invention relates to the technical field of sponge materials, in particular to an anti-corrosion sponge and a preparation method thereof.
Background
Sponge products are gradually popularized in life of people, wherein household articles such as seats, sofas, mattresses and the like made of sponge are provided, polyether polyol is a main raw material for producing polyurethane sponge, the polyether polyol generally adopted in the existing polyurethane sponge production generally adopts petroleum polyether polyol, however, the polyurethane prepared from the petroleum polyether polyol has high stability and is difficult to decompose in a natural state; the sponge has no degradability, is not beneficial to environmental protection and sustainable development, and needs a large amount of sponge supply in the market along with the expansion of the application field of sponge products. Meanwhile, the polyurethane in the prior art has poor acid-base corrosion resistance, and the application range of the polyurethane is limited.
The graphene oxide has a unique two-dimensional lamellar structure and excellent mechanical properties and thermal properties, so that the graphene oxide can have an important influence on the properties of a polymer after being added into the high molecular polymer.
Based on the situation, the invention provides an anti-corrosion sponge and a preparation method thereof, which can effectively solve the problems.
Disclosure of Invention
The invention aims to provide an anti-corrosion sponge and a preparation method thereof.
In order to achieve the purpose, the invention provides an anti-corrosion sponge which is prepared from the following raw materials in parts by weight: 80-100 parts of polyether polyol, 50-70 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 1-3 parts of silicone, 3-5 parts of flame-retardant epoxy soybean oil-based polyether polyol, 4-8 parts of deionized water, 2-4 parts of bis (dimethylaminoethyl) ether and 151-3 parts of GLK.
Preferably, the diphenylmethane diisocyanate is one of 4,4' -diphenylmethane diisocyanate, 2,4' -diphenylmethane diisocyanate and 2,2' -diphenylmethane diisocyanate.
Preferably, the diphenylmethane diisocyanate is prepared by modified grafting of 4,4' -diphenylmethane diisocyanate and graphene oxide.
Preferably, the foam stabilizer is one or more of silicone or a silicon-carbon bonded Si-C copolymer.
Preferably, the flame retardant is a flame retardant epoxidized soybean oil based polyether polyol.
Preferably, the foaming agent is deionized water.
Preferably, the amine catalyst comprises one of triethanolamine, triethylenediamine, triethylamine, and bis (dimethylaminoethyl) ether.
Preferably, the cell opener is GLK 15.
In one embodiment, the anti-corrosion sponge is prepared from the following raw materials in parts by weight: 80 parts of polyether polyol, 500 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 1 part of silicone, 3 parts of flame-retardant epoxy soybean oil-based polyether polyol, 4 parts of deionized water, 2 parts of bis (dimethylaminoethyl) ether and 151 parts of GLK.
In one embodiment, the anti-corrosion sponge is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, 70 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 3 parts of silicone, 5 parts of flame-retardant epoxy soybean oil-based polyether polyol, 8 parts of deionized water, 4 parts of bis (dimethylaminoethyl) ether and 153 parts of GLK.
In one embodiment, the anti-corrosion sponge is prepared from the following raw materials in parts by weight: 90 parts of polyether polyol, 60 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 2 parts of silicone, 4 parts of flame-retardant epoxy soybean oil-based polyether polyol, 6 parts of deionized water, 3 parts of bis (dimethylaminoethyl) ether and 152 parts of GLK.
The invention also provides a preparation method of the anti-corrosion sponge, which comprises the following steps:
(1) adding polyether polyol into a container, heating to 50-60 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 30-60 s under a stirring machine with the rotation speed of 1000-1500 r/min for later use;
(2) mixing the graphene oxide modified 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 10-30 s in a stirrer at the rotating speed of 500-1000 r/min for later use;
(3) free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 8-10 s in a stirrer with the rotating speed of 2500-3000 r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 24-36 hours to obtain the material.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the graphene oxide is added to modify the 4,4' -diphenylmethane diisocyanate, so that the acid and alkali resistance and corrosion resistance of the sponge material are improved, on one hand, the compatibility among all components in a system can be effectively improved, and on the other hand, the affinity between the sponge material and strong acid and strong alkali is poor, so that the whole sponge material has better corrosion resistance.
2. The raw materials of the invention are sufficient in China and proper in price, so that the large-scale production of the invention is not limited by too high cost; meanwhile, the preparation method is simple, the total production cost is low, and the industrial large-scale production is facilitated.
Detailed Description
Example 1
The specific raw materials were weighed as in table 1, and the remaining steps were as follows:
(1) adding polyether polyol into a container, heating to 50 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 60s under a stirring machine with the rotation speed of 1000r/min for later use;
(2) mixing the graphene oxide modified 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 30s in a stirrer at the rotating speed of 500r/min for later use;
(3) free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 10s in a stirrer with the rotation speed of 2500r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 24 hours to obtain the material.
Example 2
The specific raw materials were weighed as in table 1, and the remaining steps were as follows:
(1) adding polyether polyol into a container, heating to 60 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 30s at a stirring machine with the rotation speed of 1500r/min for later use;
(2) mixing the graphene oxide modified 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 10s in a stirrer at the rotating speed of 1000r/min for later use;
(3) free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 8s in a stirrer with the rotating speed of 3000r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 36 hours to obtain the material.
Example 3
The specific raw materials were weighed as in table 1, and the remaining steps were as follows:
(1) adding polyether polyol into a container, heating to 60 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 60s at a stirring machine with the rotation speed of 1500r/min for later use;
(2) mixing the graphene oxide modified 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 30s in a stirrer at the rotating speed of 1000r/min for later use;
(3) free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 10s in a stirrer with the rotating speed of 3000r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 36 hours to obtain the material.
Comparative example 1
The specific raw materials were weighed as in table 1, and the preparation steps were as follows:
(1) adding polyether polyol into a container, heating to 60 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 60s at a stirring machine with the rotation speed of 1500r/min for later use;
(2) mixing 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 30s in a stirrer at the rotating speed of 1000r/min for later use;
(3) free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 10s in a stirrer with the rotating speed of 3000r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 36 hours to obtain the material.
TABLE 1
Example 4 preservation PropertiesCan test
And (3) testing acid resistance: the anti-corrosion sponges prepared by the methods in examples 1 to 3 and comparative example 1 were soaked in 1mol/L hydrochloric acid solution, and the weight change was recorded every 10 days. The test results are shown in Table 2.
Alkali resistance test: the anti-corrosive sponges prepared by the methods in examples 1 to 3 and comparative example 1 were soaked in 1mol/L sodium hydroxide solution, and the weight change was recorded every 10 days. The test results are shown in Table 2.
Table 2 corrosion resistance test results
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| 10d(HCl) | -0.21％ | -0.23％ | -0.19％ | -0.23％ |
| 20d(HCl) | -0.23％ | -0.24％ | -0.16％ | -0.35％ |
| 30d(HCl) | -0.19％ | -0.22％ | -0.21％ | -0.49％ |
| 10d(NaOH) | -0.42％ | -0.40％ | -0.38％ | -0.46％ |
| 20d(NaOH) | -0.39％ | -0.43％ | -0.41％ | -0.62％ |
| 30d(NaOH) | -0.36％ | -0.44％ | -0.42％ | -0.95％ |
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (9)
1. The anti-corrosion sponge is characterized by comprising the following raw materials in parts by weight: 80-100 parts of polyether polyol, 50-70 parts of graphene oxide modified 4,4' -diphenylmethane diisocyanate, 1-3 parts of silicone, 3-5 parts of flame-retardant epoxy soybean oil-based polyether polyol, 4-8 parts of deionized water, 2-4 parts of bis (dimethylaminoethyl) ether and 151-3 parts of GLK.
2. Antiseptic sponge according to claim 1, wherein the diphenylmethane diisocyanate is preferably one of 4,4 '-diphenylmethane diisocyanate, 2' -diphenylmethane diisocyanate.
3. The corrosion-resistant sponge according to claim 2, wherein the diphenylmethane diisocyanate is prepared by modified grafting of 4,4' -diphenylmethane diisocyanate and graphene oxide.
4. The antiseptic sponge of claim 1, wherein said foam stabilizer is one or more of silicone or a silicon-carbon bonded Si-C copolymer.
5. The corrosion protection sponge of claim 1, wherein the flame retardant is a flame retardant epoxidized soy oil based polyether polyol.
6. The corrosion protection sponge according to claim 1, wherein the foaming agent is deionized water.
7. The antiseptic sponge according to claim 1, wherein the amine catalyst comprises one of triethanolamine, triethylenediamine, triethylamine, bis (dimethylaminoethyl) ether.
8. The antiseptic sponge according to claim 1, wherein the cell opener is GLK 15.
9. A method of making an antiseptic sponge according to any one of claims 1 to 8, comprising the steps of:
(1) adding polyether polyol into a container, heating to 50-60 ℃, then adding silicone, deionized water, bis (dimethylaminoethyl) ether and GLK15, and stirring for 30-60 s under a stirring machine with the rotation speed of 1000-1500 r/min for later use.
(2) Mixing the graphene oxide modified 4,4' -diphenylmethane diisocyanate and the flame-retardant epoxy soybean oil-based polyether polyol, and stirring for 10-30 s in a stirrer at the rotating speed of 500-1000 r/min for later use.
(3) Free foaming: and (3) pouring the mixture obtained in the step (2) into the mixture obtained in the step (1), stirring for 8-10 s in a stirrer with the rotating speed of 2500-3000 r/min, pouring the system into a mold after the system turns white, controlling the temperature of the mold to be 25 +/-0.5 ℃, and cutting after 24-36 hours to obtain the material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185166.XA CN114479004A (en) | 2022-02-28 | 2022-02-28 | Anti-corrosion sponge and preparation method thereof |
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| CN202210185166.XA CN114479004A (en) | 2022-02-28 | 2022-02-28 | Anti-corrosion sponge and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153835A (en) * | 2011-03-15 | 2011-08-17 | 北京航空航天大学 | Modified graphene/epoxy resin composite material and preparation method thereof |
| CN103408718A (en) * | 2013-08-05 | 2013-11-27 | 江苏大学 | Preparation method and application of graphene oxide-polyurethane foam material |
| CN107417885A (en) * | 2017-08-28 | 2017-12-01 | 江苏绿源新材料有限公司 | Biomass-based flame-retardant polyurethane flexible sponge foam and preparation method thereof |
| CN108239253A (en) * | 2016-12-23 | 2018-07-03 | 北京赛特石墨烯科技有限公司 | A kind of graphene polyurethane sponge and preparation method and application |
| CN110240690A (en) * | 2019-05-23 | 2019-09-17 | 江苏江山红化纤有限责任公司 | Graphene modified polyurethane foam and preparation method thereof |
| CN111690191A (en) * | 2020-08-03 | 2020-09-22 | 惠州市顺盛实业有限公司 | Formula and preparation process of waterproof flame-retardant sponge |
-
2022
- 2022-02-28 CN CN202210185166.XA patent/CN114479004A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153835A (en) * | 2011-03-15 | 2011-08-17 | 北京航空航天大学 | Modified graphene/epoxy resin composite material and preparation method thereof |
| CN103408718A (en) * | 2013-08-05 | 2013-11-27 | 江苏大学 | Preparation method and application of graphene oxide-polyurethane foam material |
| CN108239253A (en) * | 2016-12-23 | 2018-07-03 | 北京赛特石墨烯科技有限公司 | A kind of graphene polyurethane sponge and preparation method and application |
| CN107417885A (en) * | 2017-08-28 | 2017-12-01 | 江苏绿源新材料有限公司 | Biomass-based flame-retardant polyurethane flexible sponge foam and preparation method thereof |
| CN110240690A (en) * | 2019-05-23 | 2019-09-17 | 江苏江山红化纤有限责任公司 | Graphene modified polyurethane foam and preparation method thereof |
| CN111690191A (en) * | 2020-08-03 | 2020-09-22 | 惠州市顺盛实业有限公司 | Formula and preparation process of waterproof flame-retardant sponge |
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