CN106566153A - Porous polyvinyl alcohol material and preparation method thereof - Google Patents
Porous polyvinyl alcohol material and preparation method thereof Download PDFInfo
- Publication number
- CN106566153A CN106566153A CN201610914099.5A CN201610914099A CN106566153A CN 106566153 A CN106566153 A CN 106566153A CN 201610914099 A CN201610914099 A CN 201610914099A CN 106566153 A CN106566153 A CN 106566153A
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- CN
- China
- Prior art keywords
- polyvinyl alcohol
- parts
- permeability
- butyraldehyde
- alcohol material
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/28—Condensation with aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
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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)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to a porous polyvinyl alcohol material and a preparation method thereof, belonging to the technical field of polyvinyl alcohol materials. The porous polyvinyl alcohol material provided by the invention comprises the following raw materials in parts by weight: 80 to 90 parts of polyvinyl alcohol, 5 to 8 parts of hydrochloric acid, 20 to 25 parts of butyraldehyde, 10 to 20 parts of NaCl, 10 to 20 parts of isopropanol and 800 to 850 parts of deionized water. According to the invention, with hydrochloric acid or sulfuric acid as an acetalation catalyst, and butyraldehyde as an acetalation raw material, a water-insoluble PVA cell material is prepared by adding a pore-foaming agent (like inorganic salts and alcohols) into a PVA solution on the premise of controlling the viscosity of a polyvinyl alcohol PVA mixed solution.
Description
Technical field
The present invention relates to a kind of polyvinyl alcohol material and preparation method thereof, it is more particularly related to a kind of permeability
Polyvinyl alcohol material and preparation method thereof, belongs to polyvinyl alcohol material technical field.
Background technology
Cellular material is obtained in all fields extensive because it has relatively low proportion, preferably physical synthesis performance
Using.In addition to wide variety of polyurethane foam, polystyrene foam, polyvinyl butyral resin cellular material is also just being subject to
The concern of people.Polyvinyl formal cellular material is white open-celled structure, and dry state quality is harder, has higher machinery strong
Degree, hygrometric state soft texture high resilience.Because micropore is mutually communicated, and there is hydrophilic, it is organic solvent-resistant, medicine, oil resistant, resistance to
The features such as aging, wear-resisting, dry heat resistance and good biocompatibility, purposes is quite varied.The cellular material is removed and can be used as air compression
Outside machine, various engine breaths, indoor air purification and various oils, organic solvent, water and coating filter material, be alternatively arranged as automobile,
Bathing pool, kitchen, printing washing implement, the polishing material of chamois leather succedaneum and glass etc..As with preferable biocompatibility
Material, can also make to clog the postoperative residual cavity in thoracic cavity and face be clogged in terms of plastic surgery due to wound disease causes defect depression etc. medical
Material.
Prior art lacks a kind of water-fast polyvinyl alcohol material.
The content of the invention
Present invention seek to address that lacking the problem of water-fast polyvinyl alcohol material in prior art, there is provided a kind of permeability
Polyvinyl alcohol material, the permeability polyvinyl alcohol material is water insoluble.
In order to realize foregoing invention purpose, its specific technical scheme is as follows：
A kind of permeability polyvinyl alcohol material, it is characterised in that：Including following raw materials by weight：
Polyvinyl alcohol（PVA）80-90 parts
Hydrochloric acid 5-8 parts
Butyraldehyde 20-25 parts
NaCl 10-20 parts
Isopropanol 10-20 parts
Deionized water 800-850 parts.
A kind of preparation method of permeability polyvinyl alcohol material, it is characterised in that：Comprise the following steps that：
A, polyvinyl alcohol, deionized water, hydrochloric acid, isopropanol and NaCl are accurately weighed by recipe requirements in a mould container；
B, under agitation, makes polyvinyl alcohol fully dissolve in 60-80 DEG C of water-bath, keeps said temperature, is slowly added dropwise complete
Butyraldehyde solution；
C, the polyvinyl butyral resin after solidification is moved to together in baking oven in 90-95 DEG C of ripening 3-5h together with mould；Cool down, take off
Mould, washing removes acid and porogen obtains final product permeability polyvinyl alcohol material.
In stepb, described to be slowly added dropwise complete butyraldehyde solution completed in 3-5h to the present invention.
The Advantageous Effects that the present invention brings：
The present invention adds porogen in PVA solution（Inorganic salt, alcohols etc.）, with hydrochloric acid or sulphuric acid as acetalation catalyst, with
Butyraldehyde is acetalation raw material, on the premise of the viscosity of control PVAC polyvinylalcohol mixed solution, is prepared for a kind of water insoluble
PVA cellular material.
Specific embodiment
Embodiment 1
A kind of permeability polyvinyl alcohol material, including following raw materials by weight：
80 parts of polyvinyl alcohol
5 parts of hydrochloric acid
20 parts of butyraldehyde
10 parts of NaCl
10 parts of isopropanol
800 parts of deionized water.
Embodiment 2
A kind of permeability polyvinyl alcohol material, including following raw materials by weight：
90 parts of polyvinyl alcohol
8 parts of hydrochloric acid
25 parts of butyraldehyde
20 parts of NaCl
20 parts of isopropanol
850 parts of deionized water.
Embodiment 3
A kind of permeability polyvinyl alcohol material, including following raw materials by weight：
85 parts of polyvinyl alcohol
6.5 parts of hydrochloric acid
22.5 parts of butyraldehyde
15 parts of NaCl
15 parts of isopropanol
825 parts of deionized water.
Embodiment 4
A kind of preparation method of permeability polyvinyl alcohol material, comprises the following steps that：
A, polyvinyl alcohol, deionized water, hydrochloric acid, isopropanol and NaCl are accurately weighed by recipe requirements in a mould container；
B, under agitation, makes polyvinyl alcohol fully dissolve in 60 DEG C of water-baths, keeps said temperature, is slowly added dropwise complete butyraldehyde
Solution；
C, the polyvinyl butyral resin after solidification is moved to together in baking oven in 90 DEG C of ripening 3h together with mould；Cooling, the demoulding, water
Washout goes acid and porogen to obtain final product permeability polyvinyl alcohol material.
It is preferably, in stepb, described that to be slowly added dropwise complete butyraldehyde solution completed in 3h.
Embodiment 5
A kind of preparation method of permeability polyvinyl alcohol material, comprises the following steps that：
A, polyvinyl alcohol, deionized water, hydrochloric acid, isopropanol and NaCl are accurately weighed by recipe requirements in a mould container；
B, under agitation, makes polyvinyl alcohol fully dissolve in 80 DEG C of water-baths, keeps said temperature, is slowly added dropwise complete butyraldehyde
Solution；
C, the polyvinyl butyral resin after solidification is moved to together in baking oven in 95 DEG C of ripening 5h together with mould；Cooling, the demoulding, water
Washout goes acid and porogen to obtain final product permeability polyvinyl alcohol material.
It is preferably, in stepb, described that to be slowly added dropwise complete butyraldehyde solution completed in 5h.
Embodiment 6
A kind of preparation method of permeability polyvinyl alcohol material, comprises the following steps that：
A, polyvinyl alcohol, deionized water, hydrochloric acid, isopropanol and NaCl are accurately weighed by recipe requirements in a mould container；
B, under agitation, makes polyvinyl alcohol fully dissolve in 70 DEG C of water-baths, keeps said temperature, is slowly added dropwise complete butyraldehyde
Solution；
C, the polyvinyl butyral resin after solidification is moved to together in baking oven in 92.5 DEG C of ripening 4h together with mould；Cooling, the demoulding,
Washing removes acid and porogen obtains final product permeability polyvinyl alcohol material.
It is preferably, in stepb, described that to be slowly added dropwise complete butyraldehyde solution completed in 4h.
Claims (3)
1. a kind of permeability polyvinyl alcohol material, it is characterised in that：Including following raw materials by weight：
Polyvinyl alcohol 80-90 parts
Hydrochloric acid 5-8 parts
Butyraldehyde 20-25 parts
NaCl 10-20 parts
Isopropanol 10-20 parts
Deionized water 800-850 parts.
2. the preparation method of a kind of permeability polyvinyl alcohol material according to claim 1, it is characterised in that：Including following work
Skill step：
A, polyvinyl alcohol, deionized water, hydrochloric acid, isopropanol and NaCl are accurately weighed by recipe requirements in a mould container；
B, under agitation, makes polyvinyl alcohol fully dissolve in 60-80 DEG C of water-bath, keeps said temperature, is slowly added dropwise complete
Butyraldehyde solution；
C, the polyvinyl butyral resin after solidification is moved to together in baking oven in 90-95 DEG C of ripening 3-5h together with mould；Cool down, take off
Mould, washing removes acid and porogen obtains final product permeability polyvinyl alcohol material.
3. the preparation method of a kind of permeability polyvinyl alcohol material according to claim 2, it is characterised in that：In stepb,
It is described that to be slowly added dropwise complete butyraldehyde solution completed in 3-5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914099.5A CN106566153B (en) | 2016-10-20 | 2016-10-20 | Porous polyvinyl alcohol material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914099.5A CN106566153B (en) | 2016-10-20 | 2016-10-20 | Porous polyvinyl alcohol material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106566153A true CN106566153A (en) | 2017-04-19 |
| CN106566153B CN106566153B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610914099.5A Active CN106566153B (en) | 2016-10-20 | 2016-10-20 | Porous polyvinyl alcohol material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590979A (en) * | 2019-10-10 | 2019-12-20 | 杭州师范大学 | Preparation method of PVB resin powder with high acetal rate |
| RU2715532C1 (en) * | 2018-05-30 | 2020-02-28 | Тойота Дзидося Кабусики Кайся | Method of producing porous material from a water-soluble polymer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112648A (en) * | 1985-11-08 | 1987-05-23 | Sekisui Chem Co Ltd | Polyvinyl acetal resin composition |
| CN103183756A (en) * | 2013-04-03 | 2013-07-03 | 东莞市龙怡阻燃材料有限公司 | Polyvinyl butyral resin, preparation method and usage thereof |
| CN104910822A (en) * | 2015-06-09 | 2015-09-16 | 浙江维涅斯装饰材料股份有限公司 | High-toughness polyvinyl butyral film and preparation method thereof |
-
2016
- 2016-10-20 CN CN201610914099.5A patent/CN106566153B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112648A (en) * | 1985-11-08 | 1987-05-23 | Sekisui Chem Co Ltd | Polyvinyl acetal resin composition |
| CN103183756A (en) * | 2013-04-03 | 2013-07-03 | 东莞市龙怡阻燃材料有限公司 | Polyvinyl butyral resin, preparation method and usage thereof |
| CN104910822A (en) * | 2015-06-09 | 2015-09-16 | 浙江维涅斯装饰材料股份有限公司 | High-toughness polyvinyl butyral film and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2715532C1 (en) * | 2018-05-30 | 2020-02-28 | Тойота Дзидося Кабусики Кайся | Method of producing porous material from a water-soluble polymer |
| CN110590979A (en) * | 2019-10-10 | 2019-12-20 | 杭州师范大学 | Preparation method of PVB resin powder with high acetal rate |
| CN110590979B (en) * | 2019-10-10 | 2022-02-01 | 杭州师范大学 | Preparation method of PVB resin powder with high acetal rate |
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| Publication number | Publication date |
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| CN106566153B (en) | 2021-03-26 |
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