CN105399944A - Tannin resin for grinding wheel binding agent - Google Patents
Tannin resin for grinding wheel binding agent Download PDFInfo
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- CN105399944A CN105399944A CN201510764292.0A CN201510764292A CN105399944A CN 105399944 A CN105399944 A CN 105399944A CN 201510764292 A CN201510764292 A CN 201510764292A CN 105399944 A CN105399944 A CN 105399944A
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- tannin
- grinding wheel
- furfuryl alcohol
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- resin
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Abstract
The invention provides tannin resin for a grinding wheel binding agent and a preparation method thereof. When in preparation, tannin and furfuryl alcohol are mixed to obtain a mixture, the pH value is adjusted to be acidic, and the mixture is put into a vacuum rotary evaporator to be evaporated in a rotating manner. The tannin-furfuryl alcohol resin adopts tannin and furfuryl alcohol as main raw materials, is sourced from natural materials, has natural property, environment-friendly property and renewability and is simple in preparation process, relatively good in performance and capable of substituting conventional phenol resin to prepare a grinding wheel.
Description
Technical field
The present invention relates to a kind of grinding wheel bond tannin resin and preparation method thereof, belong to grinding wheel bond technical field.
Background technology
Emery wheel is the class grinding tool that in ground finish, usage quantity is maximum, application surface is the widest, by adding bonding agent in abrasive material, forms through pressed compact, drying and roasting.Due to the difference of abrasive material, bonding agent and manufacturing process, the characteristic difference of emery wheel is very large.The effect of bonding agent is bonding abrasive material, plays tackiness agent effect.Bonding agent main at present can be divided into four kinds, pottery, resin, rubber and metal.Be that emery wheel prepared by bonding agent is referred to as resin wheel with resin, as resol, epoxy resin, urethane resin etc., and be most widely used with resol.Obviously, the performance of resin determines the intensity, thermotolerance, shock resistance, erosion resistance etc. of emery wheel and the service efficiency of final decision emery wheel and work-ing life to a great extent.
In the last few years, along with the continuous reinforcement of the constantly soaring of petroleum chemicals price and people's environmental consciousness, utilize natural product to substitute petrochemical material more and more causes people attention with the research preparing various material.Tannin is the water extract of plant, have another name called vegetable tannin, it is the complicated polyphenol producing, can make rawhide finished leather in plant materials, due to the similarity with phenol chemical structure, in wood working research field, tannin can be utilized partly or entirely to replace aldehydes matter in the resol of one of Wood in Common Use tackiness agent and for wood adhesive.There is no at present with tannin is that raw material is prepared tannin base resin and substituted the relevant report that resol prepared for resin wheel.
In resol for the aldehyde material with phenol reactant except formaldehyde, also have the important aldehyde material of a class, i.e. furfural.Furfural, except containing except aldehyde radical, still has double bond to exist, therefore response capacity is very large, and the resin of phenol and furfural condensation, has the advantages that thermotolerance is high, also can directly or through modified prepare for emery wheel.The hydrogenation products of furfural is furfuryl alcohol, reactivity is stronger, it is under certain reaction conditions, methylol in molecule can self polycondensation or obtain furfuryl alcohol resin as urea aldehyde, phenolic aldehyde etc. carry out copolycondensation with other material, uncured furfuryl alcohol resin and much thermoset or thermoplastic resin have good compatibility, and the furfuryl alcohol resin after solidification then shows good resistance to chemical attack and thermotolerance.
This invention exploits a kind of tannin-furfuryl alcohol resin being basic raw material with tannin, furfuryl alcohol, can be used for grinding wheel bond, there is not yet Patents report.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides a kind of grinding wheel bond tannin resin, effectively can solve the problem in background technology.
The object of the invention is to seek tannin and utilize new way, a kind of grinding wheel bond tannin-furfuryl alcohol resin and preparation method thereof is provided, and for the preparation of emery wheel.
The technical solution adopted in the present invention is:
By tannin, furfuryl alcohol mixing, after stirring, add acid, adjust ph is 2 ~ 3, afterwards, mixture is put into vacuum rotary evaporator in 40 ~ 60 DEG C of rotary evaporations 0.5 ~ 2 hour.
Tannin-furfuryl alcohol resin of the present invention, be made up according to following weight parts or parts by volume proportioning of above raw material: tannin weight part is 10 parts, furfuryl alcohol parts by volume is 15 ~ 50 parts.
Described tannin is Condesed tannins, is one or more materials in acacia mearnsii tannin, hard wooden tannin, pine tree tannin, red skin tannin, potato gelsemium tannin.
Described acid is the one in oxalic acid, tosic acid, hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, adds with certain density solution form.
The beneficial effect that the present invention reaches is: a kind of grinding wheel bond tannin resin; (1) tannin of the present invention-furfuryl alcohol resin main raw material is tannin and furfuryl alcohol; tannin is the water extract of plant; for natural biomass materials; furfuryl alcohol is prepared by furfural; and the production of furfural is to be rich in the reproducible farm-forestry crop such as bagasse, corn cob, rice husk of pentosan for raw material; therefore; than the resol based on petroleum chemicals; tannin-furfuryl alcohol resin has natural environmental-protective recyclability, meets environment protection and Sustainable development requirement.(2) tannin of the present invention-furfuryl alcohol resin preparation technology is simple, easy and simple to handle, is conducive to the industrial application of tannin-furfuryl alcohol resin.(3) emery wheel utilizing tannin-furfuryl alcohol resin to prepare, than the resol emery wheel prepared for raw material with phenol, formaldehyde, have more superior mechanical property and resistance toheat, and surface smoothing is flawless and bubble, meanwhile, wear resisting property is suitable.Domestic tannin and furfuryl alcohol market is in production capacity surplus for a long time, supply exceed demand state, the survival and development for relevant enterprise are provided new opportunity by the exploitation of tannin and furfuryl alcohol derived product, thus promote the sound development of tannin and furfuryl alcohol industry.
Embodiment
Following specific embodiment further illustrates of the present invention, instead of limit the scope of the invention.
Embodiment 1:
By 10g black wattle bark tannins, the mixing of 30ml furfuryl alcohol, after stirring, add the tosic acid aqueous solution that 0.8ml weight concentration is 65%, stir after after two minutes and put into vacuum rotary evaporator, carry out rotary evaporation 1 hour in 60 DEG C.
Embodiment 2:
By 10g pine tree tannin, the mixing of 20ml furfuryl alcohol, after stirring, add the aqueous hydrochloric acid that 1ml weight concentration is 30%, stir after after two minutes and put into vacuum rotary evaporator, carry out rotary evaporation 2 hours in 60 DEG C.Comparative example 1 is to being furnished with the phenol 21g adding 37% formaldehyde solution 8g and dissolve in advance in the there-necked flask of stirring rod, prolong, thermometer, mix, be 2 with acid for adjusting pH, be warming up to 94 DEG C, add second batch 37% formaldehyde solution 8g, every 15 minutes, 16g37% formaldehyde solution average mark is added for twice afterwards, keep temperature-resistant, continue reaction 2.5 hours, cooling blowing, obtains resol.
Experimental example
The effect test of tannin of the present invention-furfuryl alcohol resin emery wheel
Utilize resin-made prepared by the embodiment of the present invention 1,2 and comparative example for emery wheel respectively; the concrete step of preparation process of emery wheel is: mixed with the alumina particle accounting for resin solid content 150% by resin; put into mould; put into the baking oven being warming up to 60 DEG C in advance; dry 12 hours, afterwards, oven temperature is risen to 120 DEG C; continue dry 24h, feeding.
The tannin prepared-furfuryl alcohol resin emery wheel and resol emery wheel Progressive symmetric erythrokeratodermia can be tested, concrete test index comprises Brinell hardness, compression performance, wear resisting property.Wherein Brinell hardness test is carried out according to standard GB, T231.1-2009, and compression performance test is carried out according to standard GB/T1041-2008.The test of wear resisting property is carried out according to ASTM_D4060-01 standard, and grinding wheel rotation times on shaving board is 500 times.The calculation formula of wear factor (I) is as follows:
Wherein A is board quality (g) before test; B is board quality (g) after test.
The performance test results of embodiment 1,2 and comparative example 1 is as shown in table 1.Detected result shows, tannin-furfuryl alcohol resin emery wheel has more superior mechanical property than homemade phenol resin sand wheel, and both wear factors are close.
The Mechanics Performance Testing of table 1 tannin resin grinding wheel
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a grinding wheel bond tannin resin, is characterized in that preparation method is as follows: by tannin, furfuryl alcohol mixing, after stirring, add acid, adjust ph is 2 ~ 3, puts into vacuum rotary evaporator rotary evaporation.
2. a kind of grinding wheel bond tannin resin according to claim 1, is characterized in that the weight part of tannin is 10 parts, and the parts by volume of furfuryl alcohol is 15 ~ 50 parts.
3. a kind of grinding wheel bond tannin resin according to claim 1, is characterized in that described tannin is Condesed tannins, is one or more materials in acacia mearnsii tannin, hard wooden tannin, pine tree tannin, red skin tannin, potato gelsemium tannin.
4. a kind of grinding wheel bond tannin resin according to claim 1, is characterized in that described acid is the one in oxalic acid, tosic acid, hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, adds with certain density solution form.
5. a kind of grinding wheel bond tannin resin according to claim 1, it is characterized in that described rotating evaporation temperature is 40 ~ 60 DEG C, evaporation time is 0.5 ~ 2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764292.0A CN105399944A (en) | 2015-11-11 | 2015-11-11 | Tannin resin for grinding wheel binding agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764292.0A CN105399944A (en) | 2015-11-11 | 2015-11-11 | Tannin resin for grinding wheel binding agent |
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| CN105399944A true CN105399944A (en) | 2016-03-16 |
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| CN201510764292.0A Pending CN105399944A (en) | 2015-11-11 | 2015-11-11 | Tannin resin for grinding wheel binding agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320676A (en) * | 2018-10-16 | 2019-02-12 | 西南林业大学 | A kind of high rigidity grinding wheel bond glyoxal, epoxy resin modification tannin-furfuryl alcohol (TF) resin and preparation method |
| CN115651729A (en) * | 2022-12-08 | 2023-01-31 | 广州佳卡纳化妆品开发有限公司 | High-calorific-value biomass granular fuel and preparation method thereof |
| CN116673880A (en) * | 2023-06-30 | 2023-09-01 | 唐山市名鲨五金磨具有限公司 | High-strength and high-efficiency resin cutting grinding wheel and preparation method thereof |
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| CN101039884A (en) * | 2004-10-15 | 2007-09-19 | 亚什兰许可和知识产权有限公司 | Binder composition comprising condensed tannin and furfuryl alcohol and its uses |
| CN103881113A (en) * | 2014-03-04 | 2014-06-25 | 西南林业大学 | Preparation of environment-friendly tannin furan resin and application of resin in production of impregnated papers |
| CN104962227A (en) * | 2015-06-30 | 2015-10-07 | 西南林业大学 | Full-biomass timber adhesive and preparation method as well as application thereof |
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2015
- 2015-11-11 CN CN201510764292.0A patent/CN105399944A/en active Pending
Patent Citations (3)
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| CN101039884A (en) * | 2004-10-15 | 2007-09-19 | 亚什兰许可和知识产权有限公司 | Binder composition comprising condensed tannin and furfuryl alcohol and its uses |
| CN103881113A (en) * | 2014-03-04 | 2014-06-25 | 西南林业大学 | Preparation of environment-friendly tannin furan resin and application of resin in production of impregnated papers |
| CN104962227A (en) * | 2015-06-30 | 2015-10-07 | 西南林业大学 | Full-biomass timber adhesive and preparation method as well as application thereof |
Non-Patent Citations (2)
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| M.C. LAGEL，ET AL: ""Cutting and grinding wheels for angle grinders with a bioresin matrix"", 《INDUSTRIAL CROPS AND PRODUCTS》 * |
| M.C. LAGEL，ET AL: ""Development and characterization of abrasive grinding wheels with a tannin-furanic resins matrix"", 《INDUSTRIAL CROPS AND PRODUCTS》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320676A (en) * | 2018-10-16 | 2019-02-12 | 西南林业大学 | A kind of high rigidity grinding wheel bond glyoxal, epoxy resin modification tannin-furfuryl alcohol (TF) resin and preparation method |
| CN109320676B (en) * | 2018-10-16 | 2021-04-02 | 西南林业大学 | High-hardness tannin-furfuryl alcohol (TF) resin modified by glyoxal and epoxy resin for grinding wheel binder and preparation method |
| CN115651729A (en) * | 2022-12-08 | 2023-01-31 | 广州佳卡纳化妆品开发有限公司 | High-calorific-value biomass granular fuel and preparation method thereof |
| CN115651729B (en) * | 2022-12-08 | 2024-04-26 | 突泉县瑞尔生物质能源开发有限公司 | High-heat-value biomass granular fuel and preparation method thereof |
| CN116673880A (en) * | 2023-06-30 | 2023-09-01 | 唐山市名鲨五金磨具有限公司 | High-strength and high-efficiency resin cutting grinding wheel and preparation method thereof |
| CN116673880B (en) * | 2023-06-30 | 2024-03-26 | 唐山市名鲨五金磨具有限公司 | High-strength and high-efficiency resin cutting grinding wheel and preparation method thereof |
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Application publication date: 20160316 |
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