CN103805121B - Water-based adhesive and preparation method thereof - Google Patents
Water-based adhesive and preparation method thereof Download PDFInfo
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- CN103805121B CN103805121B CN201410093478.3A CN201410093478A CN103805121B CN 103805121 B CN103805121 B CN 103805121B CN 201410093478 A CN201410093478 A CN 201410093478A CN 103805121 B CN103805121 B CN 103805121B
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- sbq
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- adhesive
- soybean protein
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Abstract
The invention discloses a water-based adhesive and a preparation method thereof. The water-based adhesive is prepared from raw materials such as water-based polyurethane emulsion, a PVA-SbQ solution and soy protein dispersion liquid on the basis of excellent compatibility of the water-based emulsion with other raw materials. The adhesive is good in adhesion; cheap environment-friendly resources such as soybean are utilized sufficiently, and the SbQ gene in the PVA-SbQ structure can be cross-linked under ultraviolet irradiation to form a network cross-linked structure; therefore, the mechanical properties of the adhesive can be improved.
Description
Technical field
The invention belongs to adhesive material and sensitive technologies field, be specifically related to a kind of aqueous adhesive and preparation method thereof.
Background technology
The aqueous adhesive adhesiveproperties taking aqueous polyurethane as raw material is better, and water tolerance, winter hardiness are excellent, but its price is relatively expensive.The advantages such as soybean protein is the natural tackiness agent of a class, and its wide material sources, have renewable, biodegradable, cheap, and biocompatibility is excellent.Polyvinyl alcohol (PVA) is a kind of common macromolecular compound, and in water-based polyurethane adhesive, it is also conventional thickening material.
Photosensitive base polymer is special stimulation-response type " intelligence " polymkeric substance of a class, and the photaesthesia primitive in structure light stimulus to external world (as ultraviolet, near infrared etc.) can make response, and certain physics or the change of chemical property occur.Light stimulus is as a kind of special control measures, and its superiority is mainly manifested in can by selecting irradiation frequency, position, intensity and time length, " regularly, fix a point, constant speed " realize intelligent control.
PVA-SbQ is the photosensitive modification derivant of a kind of polyvinyl alcohol, and the SbQ group on its structure side chain can in UV light-induced lower generation dimerization crosslinking reaction.It not only has the thickening effect of PVA, also possesses photo-crosslinking performance.Imagine and introduced in adhesive system by natural soybean protein, low-carbon environment-friendly, reduces costs, and substitutes traditional thickening material PVA with light activated PVA-SbQ, can give tackiness agent more performances, and makes tackiness agent " intellectuality " more.
Summary of the invention
The object of this invention is to provide a kind of aqueous adhesive and preparation method thereof.A kind of aqueous adhesive of invention, count by weight, each component proportion is aqueous polyurethane emulsion 30-40 part, PVA-SbQ aqueous solution 25-30 part, soybean protein dispersion liquid 10-15 part, auxiliary agent 3-5 part.The described PVA-SbQ aqueous solution is obtain dissolving 20min under PVA-SbQ normal temperature in water the PVA-SbQ aqueous solution that massfraction is 30%.Described soybean protein dispersion liquid is be dissolved in the water of pH=8 ~ 9 by soybean protein at 60 DEG C, stirs the soybean protein dispersion liquid that 1 hour obtained mass fraction is 35%.Described auxiliary agent is selected from one or more in mineral filler, UV light absorber, sanitas, defoamer, silane coupling agent.
Aqueous adhesive preparation method of the present invention, step is: (1) obtains dissolving 20min under PVA-SbQ normal temperature in water the PVA-SbQ aqueous solution that massfraction is 30%; (2) soybean protein is dissolved in the water of pH=8 ~ 9 at 60 DEG C, stirs the soybean protein dispersion liquid that 1 hour obtained mass fraction is 35%; (3) in described ratio by aqueous polyurethane emulsion, the PVA-SbQ aqueous solution, soybean protein dispersion liquid mix and blend 20 minutes, then add auxiliary agent, stir 15 minutes.
The application of aqueous adhesive of the present invention, is after described adhesive coated to substrate surface, and under ultraviolet lamp, exposure is crosslinked.
Beneficial effect of the present invention: aqueous adhesive of the present invention for raw material, utilizes water-based emulsion and the good consistency of other various raw material to make with aqueous polyurethane emulsion, PVA-SbQ solution, soybean protein dispersion liquid.This tackiness agent adhesivity is good, makes full use of the cheap environmental protection resources such as soybean, and the SbQ group in PVA-SbQ structure can be cross-linked under ultraviolet lighting, forms network cross-linked structure, is conducive to the mechanical property improving tackiness agent.
Embodiment
Below utilize embodiment to further describe the present invention, but can not think to limit scope of invention.
Embodiment 1
Aqueous adhesive, counts by weight, and each component proportion is aqueous polyurethane emulsion 30 parts, the PVA-SbQ aqueous solution 30 parts, soybean protein dispersion liquid 15 parts, uv-absorbing agent 3 parts.
Embodiment 2
Aqueous adhesive, counts by weight, and each component proportion is aqueous polyurethane emulsion 35 parts, the PVA-SbQ aqueous solution 25 parts, soybean protein dispersion liquid 12 parts, silane coupling agent 5 parts.
Embodiment 3
Aqueous adhesive, counts by weight, and each component proportion is aqueous polyurethane emulsion 40 parts, the PVA-SbQ aqueous solution 30 parts, soybean protein dispersion liquid 10 parts, silane coupling agent 3 parts, defoamer 2 parts.
Embodiment 4
Aqueous adhesive in embodiment 1 is made glued membrane, and carry out uv-exposure 10 minutes, the tensile strength of more unexposed glued membrane and exposure 10 minutes glued membranes, obtain experimental result: expose the tensile strength of glued membrane after 10 minutes and bring up to 43Mpa by original 36Mpa, namely mechanical property is improved.
Claims (2)
1. a preparation method for aqueous adhesive, is characterized in that, counts by weight, and each component proportion is aqueous polyurethane emulsion 30-40 part, PVA-SbQ aqueous solution 25-30 part, soybean protein dispersion liquid 10-15 part, auxiliary agent 3-5 part;
Preparation process is: (1) obtains dissolving 20min under PVA-SbQ normal temperature in water the PVA-SbQ aqueous solution that massfraction is 30%; (2) soybean protein is dissolved in the water of pH=8 ~ 9 at 60 DEG C, stirs the soybean protein dispersion liquid that 1 hour obtained mass fraction is 35%; (3) in described ratio by aqueous polyurethane emulsion, the PVA-SbQ aqueous solution, soybean protein dispersion liquid mix and blend 20 minutes, then add auxiliary agent, stir 15 minutes.
2. the preparation method of aqueous adhesive as claimed in claim 1, it is characterized in that, described auxiliary agent is selected from one or more in mineral filler, UV light absorber, sanitas, defoamer, silane coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093478.3A CN103805121B (en) | 2014-03-14 | 2014-03-14 | Water-based adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093478.3A CN103805121B (en) | 2014-03-14 | 2014-03-14 | Water-based adhesive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103805121A CN103805121A (en) | 2014-05-21 |
| CN103805121B true CN103805121B (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410093478.3A Expired - Fee Related CN103805121B (en) | 2014-03-14 | 2014-03-14 | Water-based adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103805121B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107903551B (en) * | 2017-11-24 | 2020-06-30 | 江苏鑫钰创科技有限公司 | Application method of protective film on workbench of cutting machine |
| CN107955573A (en) * | 2017-12-05 | 2018-04-24 | 江南大学 | A kind of preparation method of modified soy protein adhesive |
| CN107964108A (en) * | 2017-12-05 | 2018-04-27 | 江南大学 | A kind of preparation method of Soybean Protein Modification composite membrane |
| CN108018016A (en) * | 2017-12-05 | 2018-05-11 | 江南大学 | A kind of preparation method of modified soy protein adhesive |
| CN111117526A (en) * | 2019-12-30 | 2020-05-08 | 广东东方一哥新材料股份有限公司 | Water-based adhesive for building material bonding and preparation method thereof |
| CN115467192B (en) * | 2022-11-11 | 2023-03-07 | 淄博永丰环保科技有限公司 | Dampproof corrugated paper based on regenerated fibers and preparation process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786055A (en) * | 2005-11-15 | 2006-06-14 | 华南理工大学 | Bicompenent high solid content aqueous polyurethane, its preparation method and application |
| CN101302410A (en) * | 2008-06-04 | 2008-11-12 | 江南大学 | Preparation of graft modification protein-based adhesive |
| CN103173188A (en) * | 2012-12-14 | 2013-06-26 | 江南大学 | Preparation method of soybean protein/microcrystalline cellulose adhesive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3885531B2 (en) * | 2001-08-17 | 2007-02-21 | 日本ポリウレタン工業株式会社 | Water-based polyurethane emulsion, water-based adhesive and water-based paint using the same |
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2014
- 2014-03-14 CN CN201410093478.3A patent/CN103805121B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786055A (en) * | 2005-11-15 | 2006-06-14 | 华南理工大学 | Bicompenent high solid content aqueous polyurethane, its preparation method and application |
| CN101302410A (en) * | 2008-06-04 | 2008-11-12 | 江南大学 | Preparation of graft modification protein-based adhesive |
| CN103173188A (en) * | 2012-12-14 | 2013-06-26 | 江南大学 | Preparation method of soybean protein/microcrystalline cellulose adhesive |
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| CN103805121A (en) | 2014-05-21 |
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Granted publication date: 20150603 Termination date: 20160314 |