CN104419361A - Production method of alcohol resin adhesive - Google Patents
Production method of alcohol resin adhesive Download PDFInfo
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- CN104419361A CN104419361A CN201310402844.4A CN201310402844A CN104419361A CN 104419361 A CN104419361 A CN 104419361A CN 201310402844 A CN201310402844 A CN 201310402844A CN 104419361 A CN104419361 A CN 104419361A
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- furfuryl alcohol
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- chemical reaction
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- alcohol resin
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Abstract
The invention discloses a production method of an alcohol resin adhesive. The product belongs to the chemical field. According to production method, furfuryl alcohol, environment-protection formaldehyde, urea, sodium hydroxide, acetic acid, cyclohexanone, an epoxy resin, a silane coupling agent, ceramic powder, graphite, asbestos and glass fibers as raw materials are used as materials, a first chemical reaction kettle, a condenser, a buffer tank, a water storage tank, a second chemical reaction kettle and a blender are used as devices, products are prepared from the alcohol resin and are obtained by mixing the alcohol resin with accessories. According to the preparation method, common devices are used and the production process is simple; high temperature and high voltage do not exist during the whole reaction process; the reaction condition is moderate; the produced products are one of common adhesives in the casting industry; the products are capable of resisting strong acid, strong base and organic solvent corrosion. The products are stable at a high temperature and has the advantages of small air, high strength, moderate thermal expansion, small hole trend, etc.
Description
Technical field:
Product of the present invention belongs to chemical field, particularly relates to a kind of production method of furfuryl alcohol resin tackiness agent.
Background technology:
Furfuryl alcohol resin is the one in furane resin series product, be that main body and formaldehyde condensation polymer form by furfuryl alcohol, outward appearance is the liquid or solid of Vandyke brown to black, and thermotolerance and water tolerance are all fine, chemical resistance is extremely strong, has excellent resistibility to acid, alkali, salt and organic solution.Main application is: 1. in the casting technique of mechanical industry, make core binder, be specially adapted to large-scale, large batch of machinofacture, as automobile military project, oil engine, diesel engine, the production of sewing machine etc., when binding agent as casting sand core uses, furfuryl alcohol resin has following characteristics: curing speed is fast, normal temperature strength is low, decomposition temperature is high, according to the carbon content of different foundry goods, the resin of different nitrogen content can be selected, and it is little to get angry, hot strength is high, thermal expansivity is moderate, fragility is large, pore tendency is little, water absorbability is large, add urea-modified after, the furfuryl alcohol resin producing different nitrogen content can be required according to difference, to meet cast steel, the requirement of cast iron and other non-ferrous metals casting techniques, 2. are a kind of excellent sanitass, 3. are binding agents of the materials such as timber, rubber, pottery, 4. can be used for producing coating.Product of the present invention is exactly a kind of furfuryl alcohol resin tackiness agent, produce this product with furfuryl alcohol, environmental protection formaldehyde, urea, sodium hydroxide, acetic acid, pimelinketone, epoxy resin, silane coupling agent, ceramics powder, graphite, asbestos, glass fibre is raw material, with the first chemical reaction kettle, condenser, surge tank, water storage tank, second chemical reaction kettle, blending machine is equipment, by the preparation of furfuryl alcohol resin, obtained finished product after the blending of furfuryl alcohol resin and auxiliary material, this preparation method uses general-purpose equipment, production technique is simple, whole reaction process is without high temperature and high pressure, thus reaction conditions is gentle, the product produced is one of the most frequently used tackiness agent of foundry industry, in addition modification is carried out owing to adding epoxy resin, therefore product has resistance to strong acid, the ability of the erosion of highly basic and organic solvent, at high temperature also very stable, owing to adding solidifying agent and filler, thus make the performance of tackiness agent better.
Summary of the invention:
The problem that the present invention mainly solves is to provide a kind of production method of furfuryl alcohol resin tackiness agent, the method with furfuryl alcohol, environmental protection formaldehyde, urea, sodium hydroxide, acetic acid, pimelinketone, epoxy resin, silane coupling agent, ceramics powder, graphite, asbestos, glass fibre for raw material, with the first chemical reaction kettle, surge tank, condenser, water storage tank, the second chemical reaction kettle, blending machine for equipment, by obtained finished product after the blending of the preparation of furfuryl alcohol resin, furfuryl alcohol resin and auxiliary material.The raw material weight proportioning that the present invention uses is: furfuryl alcohol 38-40%, environmental protection formaldehyde 10-12%, urea 6%, sodium hydroxide sterling 2%, acetic acid sterling 2%, pimelinketone 28%, epoxy resin 2%, silane coupling agent 2%, ceramics powder 3%, graphite 3%, asbestos 1%, glass fibre 1%.
The present invention can be achieved through the following technical solutions:
A production method for furfuryl alcohol resin tackiness agent, its feature is made up of following steps:
(1) the environmental protection formaldehyde of formula ratio and urea are sent into the first chemical reaction kettle, add after stirring with the rotating speed of 25 revs/min and account for the furfuryl alcohol that total amount is 10%, the aqueous solution now adding the sodium hydroxide sterling preparation of formula ratio adjusts the pH value of liquid in still to be 7.5, send into steam to reactor interlayer while stirring and be warming up to 94-96 DEG C, the first reaction is carried out in stirring, time is 0.2-0.3 hour, then steam off, to the first reactor interlayer send into cold water make that in still, liquid is cooled to 56-58 DEG C time, continue to stir, remaining furfuryl alcohol is added in the first chemical reaction kettle, now add the acetic acid of formula ratio, the pH value adjusting liquid in still is 6.4, the second reaction is carried out in stirring, time is stop after 0.1-0.15 hour stirring, vacuum hydro-extraction is carried out in still sealing, the moisture removed sends into surge tank in the mode of steam by pipeline, sending into water storage tank after feeding condenser is condensed into water after buffering places stand-by, remaining in first chemical reaction kettle is liquid furfuryl alcohol resin.
(2) liquid furfuryl alcohol resin is sent into the second chemical reaction kettle, stir under adding the pimelinketone of the formula ratio of formula ratio, epoxy resin, silane coupling agent normal temperature successively; The ceramics powder of formula ratio, graphite, asbestos, glass fibre are sent into blending machine, sends into the second chemical reaction kettle after even blend, be stirred under normal temperature after mixing and obtain finished product.
The first temperature of reaction in the first chemical reaction kettle described in step (1) is 95 DEG C, and the stirring reaction time is 0.25 hour; The second temperature of reaction in the first described chemical reaction kettle is 57 DEG C, and the stirring reaction time is 0.125 hour.
Normal temperature described in step (2) is 5-30 DEG C.
This bright beneficial effect is: the production method providing a kind of furfuryl alcohol resin tackiness agent, and the method has and uses that general-purpose equipment, production technique are simple, the advantage of low production cost, good product quality; Product, as one of the most frequently used tackiness agent of foundry industry, has the ability that resistance to strong acid, highly basic and organic solvent corrode, at high temperature also very stable, and has little, the advantage such as intensity is high, thermal expansivity is moderate, pore tendency is little of getting angry.
Embodiment
Embodiment 1
By account for total amount be 10% environmental protection formaldehyde and account for total amount be 6% urea send into the first chemical reaction kettle, add after stirring with the rotating speed of 25 revs/min and account for the furfuryl alcohol that total amount is 10%, now add that to account for total amount be that the aqueous solution of the sodium hydroxide sterling preparation of 2% adjusts the pH value of liquid in still to be 7.5, send into steam to reactor interlayer while stirring and be warming up to 94-96 DEG C, the first reaction is carried out in stirring, time is 0.2-0.3 hour, then steam off, to the first reactor interlayer send into cold water make that in still, liquid is cooled to 56-58 DEG C time, continue to stir, by account for total amount be 30% furfuryl alcohol add in the first chemical reaction kettle, now add and account for the acetic acid that total amount is 2%, the pH value adjusting liquid in still is 6.4, the second reaction is carried out in stirring, time is stop after 0.1-0.15 hour stirring, vacuum hydro-extraction is carried out in still sealing, the moisture removed sends into surge tank in the mode of steam by pipeline, sending into water storage tank after feeding condenser is condensed into water after buffering places stand-by, remaining in first chemical reaction kettle is liquid furfuryl alcohol resin.Liquid furfuryl alcohol resin is sent into the second chemical reaction kettle, add successively account for total amount be 28% pimelinketone, account for total amount be 2% epoxy resin, to account for total amount be stir under the silane coupling agent normal temperature of 2%; By account for total amount be 3% ceramics powder, account for total amount be 3% graphite, account for total amount be 1% asbestos, account for total amount be 1% glass fibre send into blending machine, send into the second chemical reaction kettle after even blend, be stirred under normal temperature after mixing and obtain finished product.
Embodiment 2
By account for total amount be 11% environmental protection formaldehyde and account for total amount be 6% urea send into the first chemical reaction kettle, add after stirring with the rotating speed of 25 revs/min and account for the furfuryl alcohol that total amount is 10%, now add that to account for total amount be that the aqueous solution of the sodium hydroxide sterling preparation of 2% adjusts the pH value of liquid in still to be 7.5, send into steam to reactor interlayer while stirring and be warming up to 94-96 DEG C, the first reaction is carried out in stirring, time is 0.2-0.3 hour, then steam off, to the first reactor interlayer send into cold water make that in still, liquid is cooled to 56-58 DEG C time, continue to stir, by account for total amount be 29% furfuryl alcohol add in the first chemical reaction kettle, now add and account for the acetic acid that total amount is 2%, the pH value adjusting liquid in still is 6.4, the second reaction is carried out in stirring, time is stop after 0.1-0.15 hour stirring, vacuum hydro-extraction is carried out in still sealing, the moisture removed sends into surge tank in the mode of steam by pipeline, sending into water storage tank after feeding condenser is condensed into water after buffering places stand-by, remaining in first chemical reaction kettle is liquid furfuryl alcohol resin.Liquid furfuryl alcohol resin is sent into the second chemical reaction kettle, add successively account for total amount be 28% pimelinketone, account for total amount be 2% epoxy resin, to account for total amount be stir under the silane coupling agent normal temperature of 2%; By account for total amount be 3% ceramics powder, account for total amount be 3% graphite, account for total amount be 1% asbestos, account for total amount be 1% glass fibre send into blending machine, send into the second chemical reaction kettle after even blend, be stirred under normal temperature after mixing and obtain finished product.
Embodiment 3
By account for total amount be 12% environmental protection formaldehyde and account for total amount be 6% urea send into the first chemical reaction kettle, add after stirring with the rotating speed of 25 revs/min and account for the furfuryl alcohol that total amount is 10%, now add that to account for total amount be that the aqueous solution of the sodium hydroxide sterling preparation of 2% adjusts the pH value of liquid in still to be 7.5, send into steam to reactor interlayer while stirring and be warming up to 94-96 DEG C, the first reaction is carried out in stirring, time is 0.2-0.3 hour, then steam off, to the first reactor interlayer send into cold water make that in still, liquid is cooled to 56-58 DEG C time, continue to stir, by account for total amount be 28% furfuryl alcohol add in the first chemical reaction kettle, now add and account for the acetic acid that total amount is 2%, the pH value adjusting liquid in still is 6.4, the second reaction is carried out in stirring, time is stop after 0.1-0.15 hour stirring, vacuum hydro-extraction is carried out in still sealing, the moisture removed sends into surge tank in the mode of steam by pipeline, sending into water storage tank after feeding condenser is condensed into water after buffering places stand-by, remaining in first chemical reaction kettle is liquid furfuryl alcohol resin.Liquid furfuryl alcohol resin is sent into the second chemical reaction kettle, add successively account for total amount be 28% pimelinketone, account for total amount be 2% epoxy resin, to account for total amount be stir under the silane coupling agent normal temperature of 2%; By account for total amount be 3% ceramics powder, account for total amount be 3% graphite, account for total amount be 1% asbestos, account for total amount be 1% glass fibre send into blending machine, send into the second chemical reaction kettle after even blend, be stirred under normal temperature after mixing and obtain finished product.
Claims (3)
1. the production method of a furfuryl alcohol resin tackiness agent, its raw material weight proportioning used is comprise: furfuryl alcohol 38-40%, environmental protection formaldehyde 10-12%, urea 6%, sodium hydroxide sterling 2%, acetic acid sterling 2%, pimelinketone 28%, epoxy resin 2%, silane coupling agent 2%, ceramics powder 3%, graphite 3%, asbestos 1%, glass fibre 1%; It is characterized in that:
The environmental protection formaldehyde of formula ratio and urea are sent into the first chemical reaction kettle by step (1), add after stirring with the rotating speed of 25 revs/min and account for the furfuryl alcohol that total amount is 10%, the aqueous solution now adding the sodium hydroxide sterling preparation of formula ratio adjusts the pH value of liquid in still to be 7.5, send into steam to reactor interlayer while stirring and be warming up to 94-96 DEG C, the first reaction is carried out in stirring, time is 0.2-0.3 hour, then steam off, to the first reactor interlayer send into cold water make that in still, liquid is cooled to 56-58 DEG C time, continue to stir, remaining furfuryl alcohol is added in the first chemical reaction kettle, now add the acetic acid of formula ratio, the pH value adjusting liquid in still is 6.4, the second reaction is carried out in stirring, time is stop after 0.1-0.15 hour stirring, vacuum hydro-extraction is carried out in still sealing, the moisture removed sends into surge tank in the mode of steam by pipeline, sending into water storage tank after feeding condenser is condensed into water after buffering places stand-by, remaining in first chemical reaction kettle is liquid furfuryl alcohol resin,
Liquid furfuryl alcohol resin is sent into the second chemical reaction kettle by step (2), stirs under adding the pimelinketone of the formula ratio of formula ratio, epoxy resin, silane coupling agent normal temperature successively; The ceramics powder of formula ratio, graphite, asbestos, glass fibre are sent into blending machine, sends into the second chemical reaction kettle after even blend, be stirred under normal temperature after mixing and obtain finished product.
2. the production method of a kind of furfuryl alcohol resin tackiness agent according to claim 1, it is characterized in that: the first temperature of reaction in the first chemical reaction kettle described in step (1) is 95 DEG C, the stirring reaction time is 0.25 hour; The second temperature of reaction in the first described chemical reaction kettle is 57 DEG C, and the stirring reaction time is 0.125 hour.
3. the production method of a kind of furfuryl alcohol resin tackiness agent according to claim 1, is characterized in that: the normal temperature described in step (2) is 5-30 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402844.4A CN104419361A (en) | 2013-09-08 | 2013-09-08 | Production method of alcohol resin adhesive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310402844.4A CN104419361A (en) | 2013-09-08 | 2013-09-08 | Production method of alcohol resin adhesive |
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| CN104419361A true CN104419361A (en) | 2015-03-18 |
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| CN201310402844.4A Pending CN104419361A (en) | 2013-09-08 | 2013-09-08 | Production method of alcohol resin adhesive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295353A (en) * | 2015-11-19 | 2016-02-03 | 苏州捷德瑞精密机械有限公司 | Binder for casting and preparation method thereof |
| CN117362922A (en) * | 2023-11-02 | 2024-01-09 | 许绝电工股份有限公司 | Low-density high-toughness epoxy resin nonmetallic product |
-
2013
- 2013-09-08 CN CN201310402844.4A patent/CN104419361A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295353A (en) * | 2015-11-19 | 2016-02-03 | 苏州捷德瑞精密机械有限公司 | Binder for casting and preparation method thereof |
| CN105295353B (en) * | 2015-11-19 | 2018-06-12 | 陆河南方机械铸造有限公司 | A kind of casting binding agent and preparation method thereof |
| CN117362922A (en) * | 2023-11-02 | 2024-01-09 | 许绝电工股份有限公司 | Low-density high-toughness epoxy resin nonmetallic product |
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Application publication date: 20150318 |