CN102634309A - Acid-cured environment-friendly binder and preparation method thereof - Google Patents
Acid-cured environment-friendly binder and preparation method thereof Download PDFInfo
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- CN102634309A CN102634309A CN2012101399927A CN201210139992A CN102634309A CN 102634309 A CN102634309 A CN 102634309A CN 2012101399927 A CN2012101399927 A CN 2012101399927A CN 201210139992 A CN201210139992 A CN 201210139992A CN 102634309 A CN102634309 A CN 102634309A
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- furfuryl alcohol
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- friendly type
- acid cure
- type sticker
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Abstract
The invention discloses an acid-cured environment-friendly binder consisting of the following formula ingredients in percent by weight: 50%-70% of plant phenolics and 20%-40% of furfuryl alcohol which are extracted from natural resources, 2%-10% of strong base type catalyst and 8%-20% of an inert solvent. A preparation method of the acid-cured environment-friendly binder comprises the steps of firstly, weighing materials by weight ratios; adding the plant phenolics in a reaction kettle; adding the catalyst when the temperature is increased to 40-60 DEG C; then increasing the temperature to 100-120 DEG C and keeping the temperature for 0.5-1.5 hours; continuously increasing the temperature to 280-350 DEG C and keeping the temperature for 1.5-3.5 hours; then lowering the temperature to 40-60 DEG C, regulating the pH value to 4-4.5, adding the furfuryl alcohol, increasing the temperature to 80-110 DEG C and keeping the temperature for 0.5-1.5 hours; and then lowering the temperature to 40-60 DEG C, adding the inert solvent, regulating the pH value to 6-8, and after that, regulating viscosity.
Description
Technical field
The present invention relates to the Chemical Felter field, particularly a kind of acid cure environment-friendly type sticker and preparation method thereof, this sticker can be used for the production of cast steel, cast iron and non-ferrous metal.
Background technology
The used molding sand of casting industry is made up of sand that is mixed with proper adhesive etc.Tackiness agent produces firm bonding between the particle of sand, gives molding sand necessary mechanical stability.Got into since this century, whole world casting industry is facing to the challenge of two aspects: the one, the requirement of casting quality is improved constantly; Strict day by day to the requirement of environment protection and cleaner production aspect besides.And at present one type of the tackiness agent used of casting industry be resol, for example furane resin, alkali resol, resole and water glass resin.These resins all discharge objectionable constituent formaldehyde and phenol in casting heat-processed, seriously polluted when therefore pouring into a mould, and operating environment threat workman's is healthy.Produce a large amount of discarded sand in producing simultaneously, consume a large amount of natural resourcess and cause environmental pollution, casting quality is lower than international standard.
Summary of the invention
The objective of the invention is the shortcoming that regeneration rate is low, the antiquated sand quantity discharged is big to harmful smokes such as release formaldehyde in the prior art and phenol, sand; Having proposed a kind of is target with the requirement of satisfying environmental protection and cleaner production, the Chemical Felter that on the basis of resole and alkalescent phenol resin, develops.
The present invention is achieved in that a kind of acid cure environment-friendly type sticker; It is characterized in that; Comprise the plant phenols of from natural resource, extracting, the furfuryl alcohol that from natural resource, extracts, highly basic class catalyzer and inert solvent, its component formula is counted with weight percent: plant phenols 50%～70%; Furfuryl alcohol 20%～40%; Catalyzer 2%～10%; Inert solvent 8%～20%.
The preferred Eugenol of said plant phenols, methyl catechol or cardanol; The said furfuryl alcohol that from natural resource, extracts is selected from the furfuryl alcohol that from wheat bran, bagasse or the wood sawdust of corn cob, oat or wheat, extracts, and is preferably the furfuryl alcohol that from the wheat bran of corn cob, oat or wheat, extracts; Said highly basic class catalyzer is Pottasium Hydroxide and/or hydrated barta; Said inert solvent is one or more combinations in glycol, diol, derivatives, ester, water or the ethanol, preferred alcohol, water.
A kind of preparation method of acid cure environment-friendly type sticker may further comprise the steps:
Step 1: the component formula in weight percent by acid cure environment-friendly type sticker of the present invention takes by weighing starting material,
Step 2: plant phenols is added in the reaction kettle, adds catalyzer when being warming up to 40 ℃～60 ℃,
Step 3: be warming up to 100 ℃～120 ℃ of temperature, be incubated 0.5-1.5 hour, continue to be warming up to 280 ℃～350 ℃, be incubated 1.5-3.5 hour,
Step 4: temperature is reduced to 40 ℃～60 ℃, transfers pH value to 4～5.5, adds furfuryl alcohol, and temperature rises to 80 ℃～110 ℃, is incubated 0.5-1.5 hour,
Step 5: temperature is reduced to 40 ℃～60 ℃, adds inert solvent and transfers pH value to 6--8, debugs viscosity then.
The present invention can have the following advantages owing to adopt above technical scheme:
1, sticker of the present invention does not contain free formaldehyde and phenol.
2, the present invention has replaced formaldehyde non-renewable, that from oil, refine and phenol with farm crop and plant leftover as raw material.
3, with the regeneration rate of the molding sand of binder making of the present invention up to 90%--95%, good condition has been created in the recycle of non-renewable roughing sand, reduced the antiquated sand discharging significantly.
4, adhesive strength of the present invention is high, and add-on is few during the molding sand of preparation, reduces cost.
Through embodiment, technical scheme of the present invention is done further detailed description below.
Embodiment:
Plant phenols is the important component part of natural product, is one of main secondary metabolite of plant, is distributed widely in the various higher plant organs such as vegetables, fruit, spice, cereal, beans and kernel, shell etc. aboundresources.The present invention mainly adopts plant phenols, furfuryl alcohol, catalyzer, inert solvent to process, and is the product of environmental protection, can be used for that cast steel, cast iron and non-ferrous metal produce.
Embodiment 1
At first take by weighing starting material, wherein contain cardanol 60%, the furfuryl alcohol 20% that from corn cob, refines, Pottasium Hydroxide 8%, water 12%.
Then cardanol through detect moisture with ash content qualified after, put into reaction kettle, adding potassium hydroxide catalysed when being warming up to 40 ℃～60 ℃, cardanol under alkaline condition the high temperature autohemagglutination to 8--10 ten thousand MPas; Continue to be warming up to 100 ℃～120 ℃ of temperature, be incubated 0.5-1.5 hour, continue to be warming up to 280 ℃～350 ℃, be incubated 1.5-3.5 hour; Reduce to 40 ℃～60 ℃ then and transfer pH value to 4～5.5, add furfuryl alcohol, temperature rises to 80 ℃～110 ℃, is incubated 0.5-1.5 hour; Temperature is reduced to 40 ℃～60 ℃ and is added entry and transfer pH value to 6--8 then, debugs viscosity then, makes product.Subsequently product is carried out each item characterization test, the result proves desired product.
The molding sand of selecting for use the present invention to prepare carries out rudder horn cast peculiar to vessel, and after foundry goods pulled out from melt pit, big core was all defeated and dispersed; Endoporus is penetrating; The foundry goods outward appearance does not have scab, corner angle clear, does not do any arrangement, removes to be transported to thermal treatment factory behind the dead head and to heat-treat.The outward appearance of this part is not carried out traditional charcoal plane, directly carries out obtaining the fine visual appearance behind the ball blast, has shortened the manufacturing cycle greatly, has reduced the cleaning polishing cost of aftertreatment.
Production checking through this part; Sand bond with the present invention's preparation is high, the property deposited is good, collapsibility is good; With the massive casting of its production, can crush in the production process, the follow-up charcoal that do not need digs, and just can obtain the fine surface quality behind the foundry goods ball blast; Shorten the manufacturing cycle, reduce manufacturing cost.This mechanical performance of products, apparent size, inner quality all reach the technical requirements of product; Quality reaches the advanced level of international like product; In the whole process that this part is produced, the surveying society of 7 countries has carried out prison to whole process and has made, and has finally passed through the authentication of 7 surveying societies.
Embodiment 2
At first take by weighing starting material, wherein contain Eugenol 50%, the furfuryl alcohol 30% that from corn cob, refines, Pottasium Hydroxide 8%, water 12%.
Eugenol through detect moisture with ash content qualified after, put into reaction kettle, adding hydrated barta catalysis when being warming up to 50 ℃～60 ℃, Eugenol under alkaline condition the high temperature autohemagglutination to 8--9 ten thousand MPas; Continue to be warming up to 110 ℃～120 ℃ of temperature, be incubated 0.5-1 hour, continue to be warming up to 290 ℃～350 ℃, be incubated 1.5-2.5 hour; Reduce to 50 ℃～60 ℃ then and transfer pH value to 4～5, add furfuryl alcohol, temperature rises to 100 ℃～110 ℃, is incubated 0.5-1 hour; Temperature is reduced to 50 ℃～60 ℃ and is added entry and transfer pH value to 7--8 then, debugs viscosity then, makes product.Subsequently product is carried out each item characterization test, the result proves desired product.
Embodiment 3
At first take by weighing starting material, wherein contain methyl catechol 55%, the furfuryl alcohol 25% that from corn cob, refines, hydrated barta 8%, ethanol 12%.
Methyl catechol through detect moisture with ash content qualified after, put into reaction kettle, adding hydrated barta catalysis when being warming up to 50 ℃～55 ℃, methyl catechol under alkaline condition the high temperature autohemagglutination to 8.5--9 ten thousand MPas; Continue to be warming up to 115 ℃～120 ℃ of temperature, be incubated 1-1.5 hour, continue to be warming up to 290 ℃～330 ℃, be incubated 1.5-2 hour; Reduce to 50 ℃～55 ℃ then and transfer pH value to 4.5～5, add furfuryl alcohol, temperature rises to 115 ℃～120 ℃, is incubated 1-1.5 hour; Temperature is reduced to 50 ℃～55 ℃ adding ethanol accent pH values to 7.5--8 then, debugs viscosity then, makes product.Subsequently product is carried out each item characterization test, the result proves desired product.
Embodiment 4
At first take by weighing starting material, wherein contain cardanol 70%, the furfuryl alcohol 20% that from the wheat bran of oat or wheat, refines, hydrated barta 2%, ethanol 8%.
Cardanol through detect moisture with ash content qualified after, put into reaction kettle, adding hydrated barta catalysis when being warming up to 40 ℃～50 ℃, cardanol under alkaline condition the high temperature autohemagglutination to 9--10 ten thousand MPas; Continue to be warming up to 100 ℃～110 ℃ of temperature, be incubated 0.5-1 hour, continue to be warming up to 280 ℃～330 ℃, be incubated 1.5-3 hour; Reduce to 40 ℃～50 ℃ then and transfer pH value to 4.5--5.5, add furfuryl alcohol, temperature rises to 80 ℃～110 ℃, is incubated 0.5-1.5 hour; Temperature is reduced to 40 ℃～50 ℃ adding ethanol accent pH values to 7--8 then, debugs viscosity then, makes product.Subsequently product is carried out each item characterization test, the result proves desired product.
The present invention has been used to cast various bigger steel castings at present, and the present invention and other various Casting Technology parameters and performance comparison are as shown in the table:
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, all any modifications of in spirit of the present invention and principle, being done, is equal to replacement or improvement etc., all should be included in protection scope of the present invention.
Claims (10)
1. an acid cure environment-friendly type sticker is characterized in that, comprises the plant phenols of from natural resource, extracting, the furfuryl alcohol that from natural resource, extracts, highly basic class catalyzer and inert solvent,
The said furfuryl alcohol that from natural resource, extracts is selected from the furfuryl alcohol that from wheat bran, bagasse or the wood sawdust of corn cob, oat or wheat, extracts,
Said inert solvent is one or more combinations in glycol, diol, derivatives, ester, water or the ethanol,
Its component formula is counted with weight percent: plant phenols 50%～70%, furfuryl alcohol 20%～40%, catalyzer 2%～10%, inert solvent 8%～20%.
2. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said plant phenols is an Eugenol.
3. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said plant phenols is a methyl catechol.
4. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said plant phenols is a cardanol.
5. acid cure environment-friendly type sticker according to claim 1 is characterized in that: the said furfuryl alcohol that from natural resource, extracts is the furfuryl alcohol that extracts in the corn cob.
6. acid cure environment-friendly type sticker according to claim 1 is characterized in that: the said furfuryl alcohol that from natural resource, extracts, the furfuryl alcohol that extracts in the wheat bran for oat or wheat.
7. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said catalyzer is Pottasium Hydroxide and/or hydrated barta.
8. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said inert solvent is an ethanol.
9. acid cure environment-friendly type sticker according to claim 1 is characterized in that: said inert solvent is a water.
10. the preparation method of an acid cure environment-friendly type sticker may further comprise the steps:
Step 1: take by weighing starting material by the described weight percent of claim 1,
Step 2: plant phenols is added in the reaction kettle, adds catalyzer when being warming up to 40 ℃～60 ℃,
Step 3: be warming up to 100 ℃～120 ℃ of temperature, be incubated 0.5-1.5 hour, continue to be warming up to 280 ℃～350 ℃, be incubated 1.5-3.5 hour,
Step 4: temperature is reduced to 40 ℃～60 ℃, transfers pH value to 4～5.5, adds furfuryl alcohol, and temperature rises to 80 ℃～110 ℃, is incubated 0.5-1.5 hour,
Step 5: temperature is reduced to 40 ℃～60 ℃, adds inert solvent and transfers pH value to 6--8, debugs viscosity then.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409096A (en) * | 2013-08-16 | 2013-11-27 | 石家庄世易糠醛糠醇有限公司 | Preparation method of environmentally-friendly formaldehyde-free wood special-purpose resin adhesive |
| CN103421419A (en) * | 2013-08-16 | 2013-12-04 | 石家庄世易糠醛糠醇有限公司 | Preparation method of high-performance furan marine anticorrosion coating |
| CN103805302A (en) * | 2013-12-20 | 2014-05-21 | 广西柳州浚业科技有限公司 | Environment-friendly industrial briquette composite binder and preparation method thereof |
| CN104264444A (en) * | 2014-10-11 | 2015-01-07 | 浙江建中竹业科技有限公司 | Health care bamboo fiber fabric |
| CN104264443A (en) * | 2014-10-11 | 2015-01-07 | 浙江建中竹业科技有限公司 | Production method of health bamboo fiber fabric for home textiles |
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| US4176114A (en) * | 1978-01-24 | 1979-11-27 | C L Industries, Inc. | Process for manufacturing sand cores or molds |
| CN101121191A (en) * | 2007-09-26 | 2008-02-13 | 济南圣泉集团股份有限公司 | Casting core sand synthetic resin adhesive |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4176114A (en) * | 1978-01-24 | 1979-11-27 | C L Industries, Inc. | Process for manufacturing sand cores or molds |
| CN101121191A (en) * | 2007-09-26 | 2008-02-13 | 济南圣泉集团股份有限公司 | Casting core sand synthetic resin adhesive |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409096A (en) * | 2013-08-16 | 2013-11-27 | 石家庄世易糠醛糠醇有限公司 | Preparation method of environmentally-friendly formaldehyde-free wood special-purpose resin adhesive |
| CN103421419A (en) * | 2013-08-16 | 2013-12-04 | 石家庄世易糠醛糠醇有限公司 | Preparation method of high-performance furan marine anticorrosion coating |
| CN103409096B (en) * | 2013-08-16 | 2014-10-15 | 石家庄世易糠醛糠醇有限公司 | Preparation method of environmentally-friendly formaldehyde-free wood special-purpose resin adhesive |
| CN103421419B (en) * | 2013-08-16 | 2015-10-14 | 石家庄世易糠醛糠醇有限公司 | A kind of preparation method of high-performance furans Marine Antifouling Paint |
| CN103805302A (en) * | 2013-12-20 | 2014-05-21 | 广西柳州浚业科技有限公司 | Environment-friendly industrial briquette composite binder and preparation method thereof |
| CN104264444A (en) * | 2014-10-11 | 2015-01-07 | 浙江建中竹业科技有限公司 | Health care bamboo fiber fabric |
| CN104264443A (en) * | 2014-10-11 | 2015-01-07 | 浙江建中竹业科技有限公司 | Production method of health bamboo fiber fabric for home textiles |
| CN104264444B (en) * | 2014-10-11 | 2016-06-01 | 浙江建中竹业科技有限公司 | A kind of health care bamboo fibre fabric |
| CN104264443B (en) * | 2014-10-11 | 2016-06-01 | 浙江建中竹业科技有限公司 | The production method with health care bamboo fibre fabric is spun by a kind of family |
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| CN102634309B (en) | 2013-12-04 |
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Owner name: BANGNI CHEMICAL (TIANJIN) CO., LTD. Free format text: FORMER OWNER: WANG HAIJIANG Effective date: 20140605 |
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Effective date of registration: 20140605 Address after: 100022, B, block 5, tower 1214, the first city, No. 36, Grand Canal Road, Beijing, Chaoyang District Patentee after: Bonny chemicals (Tianjin) Ltd Address before: 100025, Beijing, Chaoyang District, ten miles north Fort, 17 floor, 5 door, No. 55 Patentee before: Wang Haijiang |