CN109054705A - A kind of wallpaper adhesive with good wet performance - Google Patents
A kind of wallpaper adhesive with good wet performance Download PDFInfo
- Publication number
- CN109054705A CN109054705A CN201810649833.9A CN201810649833A CN109054705A CN 109054705 A CN109054705 A CN 109054705A CN 201810649833 A CN201810649833 A CN 201810649833A CN 109054705 A CN109054705 A CN 109054705A
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- China
- Prior art keywords
- wet performance
- good wet
- adhesive
- hours
- wallpaper adhesive
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- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of wallpaper adhesives with good wet performance, it is related to adhesive technology field, sodium pyrosulfite modified polyvinylalcohol containing its quality 9.2-12.4% in the adhesive, wallpaper adhesive prepared by the present invention with good wet performance not only has good wettability, while also having good adhesion strength.
Description
Technical field
The invention belongs to adhesive technology fields, and in particular to a kind of wallpaper adhesive with good wet performance.
Background technique
Wallpaper, also referred to as wallpaper are a kind of quite extensive house decorative materials of application.Because wallpaper has color more
A variety of other house decorative materials such as sample, pattern be abundant, luxurious style, safety and environmental protection, easy for construction, affordable can not compare
Quasi- feature, it has also become a kind of home decoration products of prevalence are increasingly liked by people.
It needs to paste wallpaper on wall using adhesive in decoration process, but the wettability of existing adhesive
Generally, easy to fall off after long-time so that wallpaper and adhesion strength between the walls are lower.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of wallpaper gluing with good wet performance is provided
Agent.
The present invention is achieved by the following technical solutions:
A kind of wallpaper adhesive with good wet performance, the coke in the adhesive containing its quality 9.2-12.4% are sub-
Sodium sulphate modified polyvinylalcohol.
Further, the sodium pyrosulfite modified polyvinylalcohol the preparation method comprises the following steps:
(1) sodium pyrosulfite, tert-butyl chloro-silicane, n,N-Dimethylformamide are added by 25:1.8:55:92 mass ratio
It is added in reaction kettle, with the stirring of 500r/min revolving speed, and is ultrasonically treated 1.8 hours under conditions of temperature is 72 DEG C, then adjusts
Temperature is saved to 80 DEG C, is flowed back 2 hours, is obtained intermediate, the ethylenediamine tetra-acetic acid of intermediate weight 6.5% is added, then in temperature
Under conditions of degree is 100 DEG C, with 150r/min revolving speed stirring 5 hours, after cooled to room temperature, discharging was obtained twice-modified
Agent；
(2) polyvinyl alcohol is mixed with deionized water, heating stirring obtains the polyethylene that mass concentration is 12% to being completely dissolved
Then alcohol solution adds above-mentioned twice-modified dose of polyvinyl alcohol quality 3.2%, after mixing, is added to reaction kettle
In, it is passed through nitrogen, after excluding oxygen, at 100 DEG C, with 400r/min revolving speed stirring 3 hours, then cooled to room temperature,
Diluted again with solvent, then carry out selection evaporation drying, then be centrifuged, precipitating is filtered, it is dry to get.
Further, ultrasonic treatment is using 500W ultrasonication in the step (1).
Further, solvent is acetone in the step (2).
Further, the adhesive further includes following parts by weight of component: Lauxite 93-96, nano diatomite ethyl alcohol
Dispersion liquid 2.2-2.9, curing agent 1.2-1.5.
Further, the nano diatomite alcohol dispersion liquid the preparation method comprises the following steps:
It is 15% that nano diatomite after coupling agent treatment, which is distributed to mass fraction by the ratio uniform of 50g:180mL,
In ethanol solution, the saturation ammonium hydroxide of ethanol solution quality 0.5% is then instilled again, with 3000r/min revolving speed stirring 2 hours, i.e.,
?.
Further, the nano diatomite after coupling agent treatment is that the nano diatomite for being 90nm by granularity is adopted
The organo silane coupling agent solution for being 10.2% with 10 times of its quality of mass fractions is at 82 DEG C, and 40min is impregnated in stirring, then
Filtering, drying to constant weight.
Further, the curing agent is ammonium chloride.
The present invention has the advantage that environment-protective adhesive simple production process prepared by the present invention compared with prior art, produces
Quality is excellent, has good caking property and good application property, and fast drying, adhesive force is strong, and bonding strength is high, system of the present invention
The standby wallpaper adhesive with good wet performance not only has good wettability, can be quickly in cement wall
Upper drawout, while also there is good cementing strength, wallpaper can be greatly improved and use the time；The present invention passes through preparation
Sodium pyrosulfite modified polyvinylalcohol is added in adhesive by sodium pyrosulfite modified polyvinylalcohol, and sodium pyrosulfite is modified
Polyvinyl alcohol dispersibility in adhesive is very good, effectively raises uniformity of size application, meanwhile, it is modified by sodium pyrosulfite
The synergistic effect of polyvinyl alcohol and the nano diatomite alcohol dispersion liquid of addition, so that adhesive and concrete wall outer surface
The angle of equilibrium is reduced, and wetability has clear improvement, meanwhile, it is capable to obtain wallpaper with adhesion strength between the walls
It is improved to significant.
Specific embodiment
Embodiment 1
A kind of wallpaper adhesive with good wet performance, the sodium pyrosulfite containing its quality 9.2% in the adhesive
Modified polyvinylalcohol.
Further, the sodium pyrosulfite modified polyvinylalcohol the preparation method comprises the following steps:
(1) sodium pyrosulfite, tert-butyl chloro-silicane, n,N-Dimethylformamide are added by 25:1.8:55:92 mass ratio
It is added in reaction kettle, with the stirring of 500r/min revolving speed, and is ultrasonically treated 1.8 hours under conditions of temperature is 72 DEG C, then adjusts
Temperature is saved to 80 DEG C, is flowed back 2 hours, is obtained intermediate, the ethylenediamine tetra-acetic acid of intermediate weight 6.5% is added, then in temperature
Under conditions of degree is 100 DEG C, with 150r/min revolving speed stirring 5 hours, after cooled to room temperature, discharging was obtained twice-modified
Agent；
(2) polyvinyl alcohol is mixed with deionized water, heating stirring obtains the polyethylene that mass concentration is 12% to being completely dissolved
Then alcohol solution adds above-mentioned twice-modified dose of polyvinyl alcohol quality 3.2%, after mixing, is added to reaction kettle
In, it is passed through nitrogen, after excluding oxygen, at 100 DEG C, with 400r/min revolving speed stirring 3 hours, then cooled to room temperature,
Diluted again with solvent, then carry out selection evaporation drying, then be centrifuged, precipitating is filtered, it is dry to get.
Further, ultrasonic treatment is using 500W ultrasonication in the step (1).
Further, solvent is acetone in the step (2).
Further, the adhesive further includes following parts by weight of component: Lauxite 93, the dispersion of nano diatomite ethyl alcohol
Liquid 2.2, curing agent 1.2.
Further, the nano diatomite alcohol dispersion liquid the preparation method comprises the following steps:
It is 15% that nano diatomite after coupling agent treatment, which is distributed to mass fraction by the ratio uniform of 50g:180mL,
In ethanol solution, the saturation ammonium hydroxide of ethanol solution quality 0.5% is then instilled again, with 3000r/min revolving speed stirring 2 hours, i.e.,
?.
Further, the nano diatomite after coupling agent treatment is that the nano diatomite for being 90nm by granularity is adopted
The organo silane coupling agent solution for being 10.2% with 10 times of its quality of mass fractions is at 82 DEG C, and 40min is impregnated in stirring, then
Filtering, drying to constant weight.
Further, the curing agent is ammonium chloride.
Embodiment 2
A kind of wallpaper adhesive with good wet performance, the pyrosulfurous acid containing its quality 12.4% in the adhesive
Sodium modified polyvinylalcohol.
Further, the sodium pyrosulfite modified polyvinylalcohol the preparation method comprises the following steps:
(1) sodium pyrosulfite, tert-butyl chloro-silicane, n,N-Dimethylformamide are added by 25:1.8:55:92 mass ratio
It is added in reaction kettle, with the stirring of 500r/min revolving speed, and is ultrasonically treated 1.8 hours under conditions of temperature is 72 DEG C, then adjusts
Temperature is saved to 80 DEG C, is flowed back 2 hours, is obtained intermediate, the ethylenediamine tetra-acetic acid of intermediate weight 6.5% is added, then in temperature
Under conditions of degree is 100 DEG C, with 150r/min revolving speed stirring 5 hours, after cooled to room temperature, discharging was obtained twice-modified
Agent；
(2) polyvinyl alcohol is mixed with deionized water, heating stirring obtains the polyethylene that mass concentration is 12% to being completely dissolved
Then alcohol solution adds above-mentioned twice-modified dose of polyvinyl alcohol quality 3.2%, after mixing, is added to reaction kettle
In, it is passed through nitrogen, after excluding oxygen, at 100 DEG C, with 400r/min revolving speed stirring 3 hours, then cooled to room temperature,
Diluted again with solvent, then carry out selection evaporation drying, then be centrifuged, precipitating is filtered, it is dry to get.
Further, ultrasonic treatment is using 500W ultrasonication in the step (1).
Further, solvent is acetone in the step (2).
Further, the adhesive further includes following parts by weight of component: Lauxite 96, the dispersion of nano diatomite ethyl alcohol
Liquid 2.9, curing agent 1.5.
Further, the nano diatomite alcohol dispersion liquid the preparation method comprises the following steps:
It is 15% that nano diatomite after coupling agent treatment, which is distributed to mass fraction by the ratio uniform of 50g:180mL,
In ethanol solution, the saturation ammonium hydroxide of ethanol solution quality 0.5% is then instilled again, with 3000r/min revolving speed stirring 2 hours, i.e.,
?.
Further, the nano diatomite after coupling agent treatment is that the nano diatomite for being 90nm by granularity is adopted
The organo silane coupling agent solution for being 10.2% with 10 times of its quality of mass fractions is at 82 DEG C, and 40min is impregnated in stirring, then
Filtering, drying to constant weight.
Further, the curing agent is ammonium chloride.
Embodiment 3
A kind of wallpaper adhesive with good wet performance, the pyrosulfurous acid containing its quality 10.4% in the adhesive
Sodium modified polyvinylalcohol.
Further, the sodium pyrosulfite modified polyvinylalcohol the preparation method comprises the following steps:
(1) sodium pyrosulfite, tert-butyl chloro-silicane, n,N-Dimethylformamide are added by 25:1.8:55:92 mass ratio
It is added in reaction kettle, with the stirring of 500r/min revolving speed, and is ultrasonically treated 1.8 hours under conditions of temperature is 72 DEG C, then adjusts
Temperature is saved to 80 DEG C, is flowed back 2 hours, is obtained intermediate, the ethylenediamine tetra-acetic acid of intermediate weight 6.5% is added, then in temperature
Under conditions of degree is 100 DEG C, with 150r/min revolving speed stirring 5 hours, after cooled to room temperature, discharging was obtained twice-modified
Agent；
(2) polyvinyl alcohol is mixed with deionized water, heating stirring obtains the polyethylene that mass concentration is 12% to being completely dissolved
Then alcohol solution adds above-mentioned twice-modified dose of polyvinyl alcohol quality 3.2%, after mixing, is added to reaction kettle
In, it is passed through nitrogen, after excluding oxygen, at 100 DEG C, with 400r/min revolving speed stirring 3 hours, then cooled to room temperature,
Diluted again with solvent, then carry out selection evaporation drying, then be centrifuged, precipitating is filtered, it is dry to get.
Further, ultrasonic treatment is using 500W ultrasonication in the step (1).
Further, solvent is acetone in the step (2).
Further, the adhesive further includes following parts by weight of component: Lauxite 95, the dispersion of nano diatomite ethyl alcohol
Liquid 2.5, curing agent 1.3.
Further, the nano diatomite alcohol dispersion liquid the preparation method comprises the following steps:
It is 15% that nano diatomite after coupling agent treatment, which is distributed to mass fraction by the ratio uniform of 50g:180mL,
In ethanol solution, the saturation ammonium hydroxide of ethanol solution quality 0.5% is then instilled again, with 3000r/min revolving speed stirring 2 hours, i.e.,
?.
Further, the nano diatomite after coupling agent treatment is that the nano diatomite for being 90nm by granularity is adopted
The organo silane coupling agent solution for being 10.2% with 10 times of its quality of mass fractions is at 82 DEG C, and 40min is impregnated in stirring, then
Filtering, drying to constant weight.
Further, the curing agent is ammonium chloride.
Comparative example 1: it is only that with the difference of embodiment 1 and sodium pyrosulfite modified polyvinylalcohol is replaced with into unmodified processing
Polyvinyl alcohol.
Comparative example 2: it is only that with the difference of embodiment 1 and the application modified polyvinylalcohol is replaced with into application number:
Modified polyvinylalcohol in 201210387148.6.
Comparative example 3: it is only that with the difference of embodiment 1 and nano diatomite alcohol dispersion liquid is replaced with into 15% ethanol solution.
Comparative example 4: it is only that with the difference of embodiment 1 and nano diatomite alcohol dispersion liquid is replaced with into silica ethyl alcohol point
Dispersion liquid.
Test
It is tested by the adhesive that embodiment is prepared with comparative example, embodiment and comparative example adhesive is uniformly brushed to coagulation
(application number: 201610550271.3) wall surface, the detection each group angle of equilibrium and bonding dry strength, control group use soil: application
Number: 201610207699.8 adhesives:
Table 1
The angle of equilibrium between adhesive and concrete wall prepared by the present invention significantly reduces as can be seen from Table 1, so that
Wetability of the adhesive on concrete wall is significantly improved, meanwhile, bonding dry strength significantly improves.
Claims (8)
1. a kind of wallpaper adhesive with good wet performance, which is characterized in that contain its quality in the adhesive
The sodium pyrosulfite modified polyvinylalcohol of 9.2-12.4%.
2. a kind of wallpaper adhesive with good wet performance according to claim 1, which is characterized in that the coke
Sodium sulfite modified polyvinylalcohol the preparation method comprises the following steps:
(1) sodium pyrosulfite, tert-butyl chloro-silicane, n,N-Dimethylformamide are added by 25:1.8:55:92 mass ratio
It is added in reaction kettle, with the stirring of 500r/min revolving speed, and is ultrasonically treated 1.8 hours under conditions of temperature is 72 DEG C, then adjusts
Temperature is saved to 80 DEG C, is flowed back 2 hours, is obtained intermediate, the ethylenediamine tetra-acetic acid of intermediate weight 6.5% is added, then in temperature
Under conditions of degree is 100 DEG C, with 150r/min revolving speed stirring 5 hours, after cooled to room temperature, discharging was obtained twice-modified
Agent；
(2) polyvinyl alcohol is mixed with deionized water, heating stirring obtains the polyethylene that mass concentration is 12% to being completely dissolved
Then alcohol solution adds above-mentioned twice-modified dose of polyvinyl alcohol quality 3.2%, after mixing, is added to reaction kettle
In, it is passed through nitrogen, after excluding oxygen, at 100 DEG C, with 400r/min revolving speed stirring 3 hours, then cooled to room temperature,
Diluted again with solvent, then carry out selection evaporation drying, then be centrifuged, precipitating is filtered, it is dry to get.
3. a kind of wallpaper adhesive with good wet performance according to claim 2, which is characterized in that the step
Suddenly ultrasonic treatment is using 500W ultrasonication in (1).
4. a kind of wallpaper adhesive with good wet performance according to claim 2, which is characterized in that the step
Suddenly solvent is acetone in (2).
5. a kind of wallpaper adhesive with good wet performance according to claim 1, which is characterized in that the glue
Glutinous agent further includes following parts by weight of component: Lauxite 93-96, nano diatomite alcohol dispersion liquid 2.2-2.9, curing agent 1.2-
1.5。
6. a kind of wallpaper adhesive with good wet performance according to claim 5, which is characterized in that described to receive
Rice diatomite alcohol dispersion liquid the preparation method comprises the following steps:
It is 15% that nano diatomite after coupling agent treatment, which is distributed to mass fraction by the ratio uniform of 50g:180mL,
In ethanol solution, the saturation ammonium hydroxide of ethanol solution quality 0.5% is then instilled again, with 3000r/min revolving speed stirring 2 hours, i.e.,
?.
7. a kind of wallpaper adhesive with good wet performance according to claim 5, which is characterized in that the warp
Nano diatomite after crossing coupling agent treatment is the mass fraction that the nano diatomite for being 90nm by granularity uses 10 times of its quality
For 10.2% organo silane coupling agent solution at 82 DEG C, stirring impregnate 40min, then filter, drying to constant weight.
8. a kind of wallpaper adhesive with good wet performance according to claim 5, which is characterized in that described solid
Agent is ammonium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649833.9A CN109054705A (en) | 2018-06-22 | 2018-06-22 | A kind of wallpaper adhesive with good wet performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649833.9A CN109054705A (en) | 2018-06-22 | 2018-06-22 | A kind of wallpaper adhesive with good wet performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109054705A true CN109054705A (en) | 2018-12-21 |
Family
ID=64820767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810649833.9A Pending CN109054705A (en) | 2018-06-22 | 2018-06-22 | A kind of wallpaper adhesive with good wet performance |
Country Status (1)
| Country | Link |
|---|---|
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030204024A1 (en) * | 1999-11-12 | 2003-10-30 | Tosoh Corporation | Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same |
| CN101085876A (en) * | 2006-06-09 | 2007-12-12 | 德古萨有限责任公司 | Solid pigment preparations |
| CN101200549A (en) * | 2007-12-04 | 2008-06-18 | 中国林业科学研究院木材工业研究所 | Method for preparing modified urea-formaldehyde resin powder material |
| EP1950205A1 (en) * | 2005-10-19 | 2008-07-30 | Dainippon Sumitomo Pharma Co., Ltd. | Method for stabilization of isoxazole compound |
| CN101475790A (en) * | 2008-01-04 | 2009-07-08 | 杨光 | Novel timber adhesive and preparation thereof |
| CN101928546A (en) * | 2010-03-15 | 2010-12-29 | 田志壮 | Formaldehyde-free wood adhesive and preparation method thereof |
| CN105108875A (en) * | 2015-07-29 | 2015-12-02 | 安徽鑫润新型材料有限公司 | Mildewproof dampproof health-care fiber composite board and preparation method thereof |
| CN105419704A (en) * | 2015-11-23 | 2016-03-23 | 苏州盖德精细材料有限公司 | Urea-formaldehyde resin adhesive and preparation method thereof |
-
2018
- 2018-06-22 CN CN201810649833.9A patent/CN109054705A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030204024A1 (en) * | 1999-11-12 | 2003-10-30 | Tosoh Corporation | Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same |
| EP1950205A1 (en) * | 2005-10-19 | 2008-07-30 | Dainippon Sumitomo Pharma Co., Ltd. | Method for stabilization of isoxazole compound |
| CN101085876A (en) * | 2006-06-09 | 2007-12-12 | 德古萨有限责任公司 | Solid pigment preparations |
| CN101200549A (en) * | 2007-12-04 | 2008-06-18 | 中国林业科学研究院木材工业研究所 | Method for preparing modified urea-formaldehyde resin powder material |
| CN101475790A (en) * | 2008-01-04 | 2009-07-08 | 杨光 | Novel timber adhesive and preparation thereof |
| CN101928546A (en) * | 2010-03-15 | 2010-12-29 | 田志壮 | Formaldehyde-free wood adhesive and preparation method thereof |
| CN105108875A (en) * | 2015-07-29 | 2015-12-02 | 安徽鑫润新型材料有限公司 | Mildewproof dampproof health-care fiber composite board and preparation method thereof |
| CN105419704A (en) * | 2015-11-23 | 2016-03-23 | 苏州盖德精细材料有限公司 | Urea-formaldehyde resin adhesive and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 刘伟: "《生物高分子材料及其应用研究》", 30 March 2018, 电子科技大学出版社 * |
| 朱洪法: "《精细化工常用原材料手册》", 30 December 2003, 金盾出版社 * |
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