CN101787252B - Environment-friendly polyurethane adhesive used for bonding granulated cork and preparation method thereof - Google Patents
Environment-friendly polyurethane adhesive used for bonding granulated cork and preparation method thereof Download PDFInfo
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- CN101787252B CN101787252B CN 200910256446 CN200910256446A CN101787252B CN 101787252 B CN101787252 B CN 101787252B CN 200910256446 CN200910256446 CN 200910256446 CN 200910256446 A CN200910256446 A CN 200910256446A CN 101787252 B CN101787252 B CN 101787252B
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Abstract
The invention relates to an environment-friendly polyurethane adhesive used for bonding a granulated cork. The invention is characterized in that the environment-friendly polyurethane adhesive consists of MDI, modified MDI, polyether glycol, an antiaging agent and a polymerization inhibitor; according to the mass percentage, the proportion of the MDI, the modified MDI, the polyether glycol and the antiaging agent is 20-30:30-40:30-40:1-5, and the addition of the polymerization inhibitor is 10PPM. When in use, the adhesive and the granulated cork are mixed according to the mass proportion of 1:10-1:5. The adhesive is inodorous and environmentally friendly and can be used at different seasons. When the adhesive is used for bonding the granulated cork, the mold opening time is greatly shorter than the TDI adhesive, and the product property is good.
Description
Technical field
The invention belongs to polyurethane binder field, particularly a kind of environment-friendly polyurethane adhesive for bonding granulated cork and preparation method thereof.
Background technology
At present along with the raising of expanding economy and people's level of consumption, many originally take outlet as main cork products also more and more common in the family at home, such as cork flooring, cork ornaments, cork sheet etc.But existing market is used for polyurethane binder of bonding granulated cork is generally the TDI type, and free TDI is more.TDI type cork tackiness agent has the low characteristics such as production, the goods snappiness is good, hardness is moderate that are easy to of viscosity, so light is favored all the time, particularly in the product scopes such as cork rod, cork sheet.But along with the enhancing of people's environmental consciousness and the progress of science and technology, the shortcoming of TDI type cork tackiness agent also comes out gradually: have pungent odour, and harmful to HUMAN HEALTH.Because 20 degrees centigrade of the vapour pressures of TDI are about 1.33Pa, cause TDI more volatile, its smell is again with pungency, NCO-meeting after human body sucks in the tackiness agent and the moisture in the tissue and the reaction of other compositions, cause sensitization and hormesis, ocular pain occurs, shed tears, the symptoms such as conjunctival congestion, cough, uncomfortable in chest, out of breath, asthma, red papule, maculopapule, Contact hyper sensitization, and just can disperse at the indoor time smell that often needs to grow when waiting place use.
Summary of the invention
Technical problem to be solved by this invention provides a kind of scentless environment-friendly polyurethane adhesive for bonding granulated cork and preparation method thereof, and this tackiness agent has odorlessness, environmental protection, the short characteristics of molding time.
A kind of polyurethane binder for bonding granulated cork of the present invention, it is characterized in that being formed by MDI, modification MDI, polyether glycol, antiaging agent and stopper, according to the mass percent meter, MDI: modification MDI: polyether glycol: antiaging agent: stopper=20-30: 30-40: 30-40: 1-5, the stopper add-on is 10PPM.
Wherein preferred technical scheme is:
Described MDI adopts MDI-100 or/and MDI-50.
Described modification MDI is the MDI of Carbodiimide-Modified.
Described polyether glycol is that 2 functionality and number-average molecular weight are the polyoxypropylene polyol of 2000-3000, be selected from DL-2000, DL-3000 or 3 functionality, number-average molecular weight is the polyoxypropylene polyol of 3000-6000, such as one or more of MN-3050 or 330N.
In preferred 1010 (four [β-(3, the 5 di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters) of described antiaging agent or 2, the 6-toluene di-tert-butyl phenol (BHT) one or both.
Described stopper preferably adopts phosphoric acid or Benzoyl chloride.
During use with this tackiness agent and granulated cork according to 1: 10-1: 5 mass ratio mixes.
Preparation the present invention is used for the method for polyurethane binder of bonding granulated cork, it is characterized in that, to add reactor under the polyether glycol normal temperature based on formula ratio, rise to 80 ℃-100 ℃ lower stirrings, vacuumize dehydration degassed 2-3 hour, be cooled to 10～40 ℃ and add MDI and modification MDI, antiaging agent, stopper, 80-85 ℃ was reacted 2-3 hour, and was cooled to 10～40 ℃ of barrellings.
Advantage of the present invention:
Odorlessness, environmental protection, during with this adhesives granulated cork, the die sinking time shortens greatly than TDI type tackiness agent, and product properties is good.Can use in Various Seasonal.
Embodiment
Embodiment 1:
With polyether glycol DL-2000 (2 functionality, molecular weight is 2000) 15 grams, polyether glycol DL-3000 (2 functionality, molecular weight is 3000) add in the there-necked flask under the 15 gram normal temperature, rise to 80 ℃-100 ℃ lower stirrings, it is degassed to moisture qualified (≤0.05%) to vacuumize dehydration, be cooled to 10～40 ℃ and add MDI 35 grams, the MDI32 gram of Carbodiimide-Modified, stopper 10ppm, antiaging agent 1010:3 gram, 80-85 ℃ was reacted 1.5-2.5 hour, be cooled to 30～50 ℃, bottling.
During use this tackiness agent is mixed according to 1: 10 ratio with granulated cork.
Embodiment 2:
With polyether glycol (DL-3000) 10 grams, polyether glycol (DL-2000) 5 grams add in the there-necked flask under polyether glycol (MN-3050) the 5 gram normal temperature, rise to 80 ℃-100 ℃ lower stirrings, it is degassed qualified to moisture to vacuumize dehydration, be cooled to 10～40 ℃ and add MDI 38 grams, MDI 40 grams of Carbodiimide-Modified, stopper 10ppm, antiaging agent (BHT): 2 grams, 80-85 ℃ was reacted 1.5-2.5 hour, was cooled to 30～50 ℃, bottling.
During use this glue is mixed with the mass ratio of granulated cork according to 1: 10.
Embodiment 3:
To add in the there-necked flask under polyether glycol (MN-3050) the 30 gram normal temperature, rise to 80 ℃-100 ℃ lower stirrings, it is degassed qualified to moisture to vacuumize dehydration, be cooled to 10～40 ℃ and add MDI 30 grams, MDI 39 grams of Carbodiimide-Modified, stopper 10ppm, antiaging agent (BHT): 1 gram, 80-85 ℃ was reacted 1.5-2.5 hour, was cooled to 30～50 ℃, bottling.
During use this tackiness agent is mixed with the mass ratio of granulated cork according to 1: 8.
| Cork article | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Cork article density Kg/m 3 | 500 | 550 | 600 |
| Tensile strength (mPa) | 0.3 | 0.35 | 0.38 |
| Tensile yield (%) | 60 | 60 | 65 |
| Tear strength (N/m) | 13 | 14 | 13.5 |
| The die sinking time (hour/25 ℃) | 12 | 12 | 12 |
Claims (2)
1. environment-friendly polyurethane adhesive that is used for bonding granulated cork, it is characterized in that being formed by MDI, modification MDI, polyether glycol, antiaging agent and stopper, according to the mass percent meter, MDI: modification MDI: polyether glycol: antiaging agent=20-30:30-40:30-40:1-5, the stopper add-on is 10ppm;
Described MDI is that MDI-100 is or/and MDI-50;
Described modification MDI is the MDI of Carbodiimide-Modified;
Described polyether glycol is that 2 functionality and number-average molecular weight are polyoxypropylene polyol or 3 functionality of 2000-3000, and number-average molecular weight is the polyoxypropylene polyol of 3000-6000;
In described antiaging agent employing 1010 or 2, the 6-toluene di-tert-butyl phenol one or both;
Described stopper adopts phosphoric acid or Benzoyl chloride.
2. method for preparing the environment-friendly polyurethane adhesive for bonding granulated cork claimed in claim 1, it is characterized in that, to add reactor under the polyether glycol normal temperature based on formula ratio, rise to 80 ℃-100 ℃ lower stirrings, vacuumize dehydration degassed 2-3 hour, be cooled to 10-40 ℃ and add MDI and modification MDI, antiaging agent, stopper, 80-85 ℃ was reacted 2-3 hour, and was cooled to 10-40 ℃ of barrelling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910256446 CN101787252B (en) | 2009-12-25 | 2009-12-25 | Environment-friendly polyurethane adhesive used for bonding granulated cork and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910256446 CN101787252B (en) | 2009-12-25 | 2009-12-25 | Environment-friendly polyurethane adhesive used for bonding granulated cork and preparation method thereof |
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| CN101787252A CN101787252A (en) | 2010-07-28 |
| CN101787252B true CN101787252B (en) | 2013-01-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT107143B (en) * | 2013-09-05 | 2020-04-22 | Inst Superior Tecnico | NATURAL WATER BASED POLYMERIC GLUES, TWO COMPONENTS, OBTAINED FROM CORK DERIVATIVES |
| CN106479427A (en) * | 2016-09-21 | 2017-03-08 | 浙江华峰新材料股份有限公司 | Renewable sponge shoe pad polyurethane binder and preparation method thereof |
| CN106947275B (en) * | 2017-03-03 | 2018-08-31 | 航天材料及工艺研究所 | A kind of heat-insulated cork composite material of high flexibility and preparation method thereof |
| CN110437789A (en) * | 2019-08-02 | 2019-11-12 | 启东东岳化工有限公司 | A kind of environment-friendlypolyurethane polyurethane binder and preparation method thereof for being bonded granulated cork |
| KR102096061B1 (en) * | 2019-08-19 | 2020-04-01 | 주식회사 이온코르크 | Manufacturing method of cork chip for road pavement with improved permeability having multi-coating film, cork chip for road pavement manufactured by the same manufacturing method and road pavement method using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597458A (en) * | 2008-06-03 | 2009-12-09 | 上海巨安科技有限公司 | A kind of solvent-free single-component polyurethane adhesive and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597458A (en) * | 2008-06-03 | 2009-12-09 | 上海巨安科技有限公司 | A kind of solvent-free single-component polyurethane adhesive and preparation method thereof |
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Owner name: SHANDONG INOV POLYURETHANE CO., LTD. Free format text: FORMER NAME: SHANGDONG DONG DA INOV POLYUERTHANE CO., LTD. |
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Address after: 255000, No. 109, Tai Mo Road, hi tech Zone, Shandong, Zibo Patentee after: SHANDONG INOV POLYURETHANE CO., LTD. Address before: 255000, No. 109, Tai Mo Road, hi tech Zone, Shandong, Zibo Patentee before: Shangdong Dong Da Inov Polyuerthane Co., Ltd. |