CN103740306B - Preparation method of wood preservation adhesive - Google Patents
Preparation method of wood preservation adhesive Download PDFInfo
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- CN103740306B CN103740306B CN201310744539.3A CN201310744539A CN103740306B CN 103740306 B CN103740306 B CN 103740306B CN 201310744539 A CN201310744539 A CN 201310744539A CN 103740306 B CN103740306 B CN 103740306B
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Abstract
The invention discloses a preparation method of a wood preservation adhesive. The preparation method comprises the following steps: (1) heating a phenolic resin adhesive to 45-65 DEG C, adding a sodium hydroxide solution, adjusting the pH value to 7.2-7.8, then, adding China wood oil and epoxy resin, reacting for 20-30min, and then, cooling to the room temperature to obtain a crude liquid of the adhesive, wherein the addition amount of the China wood oil is 3-9% of that of the phenolic resin adhesive, and the addition amount of the epoxy resin is 1-3% of that of the phenolic resin adhesive; (2) uniformly mixing the crude liquid of the adhesive and methyl copper according to the mass ratio of 100: (0.5-1.5), evaporating a solvent at the room temperature and the pressure of 0.03-0.09MPa, and then, smashing into adhesive powder with the mesh number of 40-80. The preparation method of the wood preservation adhesive is easy to realize, convenient to operate and low in production cost.
Description
Technical field
The present invention relates to a kind of wood preservation adhesive preparation method, specifically, relate to a kind of method utilizing phenolic resin adhesive to prepare wood preservation adhesive.
Background technology
Resol is the general designation that phenols and aldehydes form resin under catalyst action.It is the synthesized polymer material of industrialization (1910, German Bakelite) the earliest.In the time in a nearly century, be used to many industrial fields, be still now important synthesized polymer material.In wood processing field, resol uses one of main glue kind widely, and its consumption is only second to urea-formaldehyde resin.Especially in water-fast, the weathering resistance woodwork of production, resol has special meaning.
Synvaren has good heat resistance, bonding strength is high, ageing-resistant performance good and electrical insulating property is excellent, and the inexpensive feature such as easy-to-use, therefore obtain and apply comparatively widely.
Phenolic resin adhesive polarity is large, bonding force is strong; Rigidity is large, thermotolerance is high; Ageing resistance is good; Water-fast, oil resistant, resistant to chemical media, resistance to mould; Itself is easy to modification, also can carry out modification to other tackiness agent.
But phenolic resin adhesive color is comparatively dark, have certain fragility, easily chap, particularly water soluble phenol resin set time compared with urea-formaldehyde resin is longer, solidification value is high, requires strict to Veneer moisture.
In order to overcome this phenomenon, more than 30 years consuming time of contriver, in thousands of experimental basis, 01802336.3), " a kind of organic ester hardening alkaline phenolic resin and preparation method thereof " (application number: 01127451.4), " a kind of aqua-solution method prepares the method for linear bisphenol A phenolic resin " (application number: on the basis of 867 patents of invention such as 02139389.3) multianalysis " phenol resin composition " (application number:, present invention applicant innovates wood preservation adhesive, provides technical support for improving phenolic resin adhesive performance.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind ofly be easy to realize, the preparation method of the wood preservation adhesive that easy to operate, production cost is low.
In order to solve the problems of the technologies described above, the preparation method of the wood preservation adhesive that the present invention adopts, be made up of following steps: phenolic resin adhesive is warming up to 45 DEG C ~ 65 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.2 ~ 7.8, add tung oil and epoxy resin again, reaction 20min ~ 30min, then room temperature is cooled to, obtain the thick liquid of sizing agent, wherein tung oil add-on is 3% ~ 9% of phenolic resin adhesive, epoxy resin add-on is 1% ~ 3% of phenolic resin adhesive, and (2) are according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:0.5 ~ 1.5, carry out Homogeneous phase mixing by thick for sizing agent liquid and methyl copper, under room temperature, pressure 0.03MPa ~ 0.09MPa, solvent evaporates is complete, and then are crushed to 40 order ~ 80 order rubber powders.Wherein the mass percent concentration of sodium hydroxide solution is 0.4% ~ 0.6%.
Adopt the preparation method of the wood preservation adhesive of technique scheme, be easy to realize, easy to operate, production cost is low, tung oil is adopted to improve resol antiseptic property further, adopt epoxy resin to improve resol gummed intensity further, thus improve phenolic resin adhesive performance, significant to building a harmonious society.This invention can produce significant economic and social profit, has good promotional value.
The present invention be a kind ofly be easy to realize, the preparation method of the wood preservation adhesive that easy to operate, production cost is low.
Embodiment
Can be expressly understood the present invention further by specific embodiments of the invention given below, but following embodiment is not limitation of the invention.
Embodiment 1:
The preparation method of wood preservation adhesive, be made up of following steps: phenolic resin adhesive is warming up to 45 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.2, add tung oil and epoxy resin again, reaction 30min, is then cooled to room temperature, obtain the thick liquid of sizing agent, wherein tung oil add-on is 3% of phenolic resin adhesive, and epoxy resin add-on is 3% of phenolic resin adhesive, and the mass percent concentration of sodium hydroxide solution is 0.4%; (2) according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:0.5, carries out Homogeneous phase mixing by thick for sizing agent liquid and methyl copper, under room temperature, pressure 0.03MPa, solvent evaporates is complete, and then is crushed to 40 order rubber powders, and obtain wood preservation adhesive, wherein methyl copper purity is greater than 98%.
Embodiment 2:
The preparation method of wood preservation adhesive, be made up of following steps: phenolic resin adhesive is warming up to 50 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.4, add tung oil and epoxy resin again, reaction 28, is then cooled to room temperature, obtain the thick liquid of sizing agent, wherein tung oil add-on is 5% of phenolic resin adhesive, and epoxy resin add-on is 2% of phenolic resin adhesive, and the mass percent concentration of sodium hydroxide solution is 0.5%; (2) according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:0.8, carries out Homogeneous phase mixing by thick for sizing agent liquid and methyl copper, under room temperature, pressure 0.05MPa, solvent evaporates is complete, and then is crushed to 60 order rubber powders, and obtain wood preservation adhesive, wherein methyl copper purity is greater than 98%.
Embodiment 3:
The preparation method of wood preservation adhesive, be made up of following steps: phenolic resin adhesive is warming up to 55 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.6, add tung oil and epoxy resin again, reaction 25, is then cooled to room temperature, obtain the thick liquid of sizing agent, wherein tung oil add-on is 7% of phenolic resin adhesive, and epoxy resin add-on is 2% of phenolic resin adhesive, and the mass percent concentration of sodium hydroxide solution is 0.5%; (2) according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:1.0, carries out Homogeneous phase mixing by thick for sizing agent liquid and methyl copper, under room temperature, pressure 0.07MPa, solvent evaporates is complete, and then is crushed to 50 order rubber powders, and obtain wood preservation adhesive, wherein methyl copper purity is greater than 98%.
Embodiment 4:
The preparation method of wood preservation adhesive, be made up of following steps: phenolic resin adhesive is warming up to 65 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.8, add tung oil and epoxy resin again, reaction 20min, is then cooled to room temperature, obtain the thick liquid of sizing agent, wherein tung oil add-on is 9% of phenolic resin adhesive, and epoxy resin add-on is 1% of phenolic resin adhesive, and the mass percent concentration of sodium hydroxide solution is 0.6%; (2) according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:1.5, carries out Homogeneous phase mixing by thick for sizing agent liquid and methyl copper, under room temperature, pressure 0.09MPa, solvent evaporates is complete, and then is crushed to 80 order rubber powders, and obtain wood preservation adhesive, wherein methyl copper purity is greater than 99%.
Claims (1)
1. the preparation method of a wood preservation adhesive, it is characterized in that: be made up of following steps: phenolic resin adhesive is warming up to 45 DEG C ~ 65 DEG C by (1), add sodium hydroxide solution and its pH value is adjusted to 7.2 ~ 7.8, add tung oil and epoxy resin again, reaction 20min ~ 30min, then room temperature is cooled to, obtain the thick liquid of sizing agent, wherein tung oil add-on is 3% ~ 9% of phenolic resin adhesive, epoxy resin add-on is 1% ~ 3% of phenolic resin adhesive, and (2) are according to mass ratio m
the thick liquid of sizing agent: m
methyl copper=100:0.5 ~ 1.5, thick for sizing agent liquid and methyl copper are carried out Homogeneous phase mixing, under room temperature, pressure 0.03MPa ~ 0.09MPa, solvent evaporates is complete, and then be crushed to 40 order ~ 80 order rubber powders, wherein the mass percent concentration of sodium hydroxide solution is 0.4% ~ 0.6%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310744539.3A CN103740306B (en) | 2013-12-30 | 2013-12-30 | Preparation method of wood preservation adhesive |
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| CN201310744539.3A CN103740306B (en) | 2013-12-30 | 2013-12-30 | Preparation method of wood preservation adhesive |
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| CN103740306A CN103740306A (en) | 2014-04-23 |
| CN103740306B true CN103740306B (en) | 2015-04-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105904526A (en) * | 2016-06-28 | 2016-08-31 | 南京林业大学 | Manufacturing method of high-corrosion-resistance reconstructing material for outdoor use |
| CN107033819A (en) * | 2017-03-21 | 2017-08-11 | 温州任和教育科技有限责任公司 | The preparation method of timber preservative dry powder |
| CN106928888A (en) * | 2017-03-21 | 2017-07-07 | 郭宝龙 | The preparation method of environment-friendly type wood preservation adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05287253A (en) * | 1992-04-06 | 1993-11-02 | Mitsui Toatsu Chem Inc | Suppression of formation of free formaldehyde from adhesive composition |
| JPH06184510A (en) * | 1992-12-16 | 1994-07-05 | Mitsui Toatsu Chem Inc | Adhesive composition |
| CN1095491C (en) * | 1999-01-08 | 2002-12-04 | 周兴国 | Preparation method for anti-soaking/leaking heat-insulated solidified-binding gum |
| CN102732200B (en) * | 2012-07-13 | 2014-08-06 | 中物院成都科学技术发展中心 | Vegetable oil-based adhesive, composite plywood and method for manufacturing composite plywood |
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