CN86100216A - Extract the method for gutta-percha by Folium Eucommiae or skin - Google Patents
Extract the method for gutta-percha by Folium Eucommiae or skin Download PDFInfo
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- CN86100216A CN86100216A CN 86100216 CN86100216A CN86100216A CN 86100216 A CN86100216 A CN 86100216A CN 86100216 CN86100216 CN 86100216 CN 86100216 A CN86100216 A CN 86100216A CN 86100216 A CN86100216 A CN 86100216A
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Abstract
The present invention is to be the new process of raw material extraction gutta-percha with Folium Eucommiae (or skin).Be characterized in, Folium Eucommiae (or skin) fermentation or boiling are destroyed its cell walls, smash machinery with high-speed waterpower and smash its tissue, to dissociate Folium glue wire, from wherein removing impurity, just obtain gutta-percha then, glue divides content to reach more than 85%.Carry glue with this method, processing step is few, and equipment is simple, and is easy to operate, thereby reduced cost.
Description
The invention belongs to producing of natural rubber, is a kind of extracting method of gutta-percha.
China's eucommia resource is very abundant, and planting range spreads all over 15 provinces such as Shaanxi, Sichuan, Yunnan, Hunan, Hubei.Remove in the Folium Eucommiae (or skin) and contain active drug such as hypotensive exceptionally, also contain a considerable amount of gutta-percha, its chemical name is a trans-polyisoprene, because constitutional features, be mechanically resistant material under the normal temperature, always can only make plastic articles, as undersea cable, golf ball and medical shaping material etc.The middle of this century, because the development of cheap synthetic plastics, the application of gutta-percha is affected, and range of application is dwindled.The patent of tight auspicious virtue in 1984 " method for preparing rubber from trans-polyisoprene " (Deutsches Reichs-Patent DE3227757) becomes high elastic rubber with this kind materials processing first, this is a kind of new caoutchouc variety for rubber industry increases, new way is provided, thereby has caused that once more people extract the interest of natural gutta-percha from gutta-percha tree.The present invention seeks a kind of easy gluing method of carrying under this kind background, to obtain cheap gutta-percha, be the gutta-percha comprehensive utilization of resources, and accelerated development high elastic Folium glue new variety lay the foundation.
Before the present invention, aspect the technology of carrying natural gum and employed mechanical means, there is the Soviet Union to produce the processing process (64～97 pages of " guttapercha " nineteen fifty-five versions) of guttapercha (being gutta-percha).The matrix present principles of carrying of this kind technology is with the material after fully fermentation and the boiling, after repeatedly pulverizing and sieving, is processed into superfine rubber cement, again according to the proportion difference, utilizes centrifuging to separate on this basis.Whole technologies are not except that washing and fermentation require the heating that other each technologies all need carry out under 65～100 ℃.This kind technology required equipment is many and complicated, thereby valuable product.Mentioned the gluing method of carrying of China in " construction of bark of eucommia woods and the utilization of gutta-percha tree " (Guizhou Province forestry department, 85～93 pages of Guizhou People's Press nineteen fifty-nine versions) book that domestic nineteen fifty-nine publishes.The main technique flow process of this method is as follows: earlier with material water logging, rinsing, with the processing of 2～3% liming, crush then, wash, ferment, wash, smash to pieces, alkali soaks (10%NaOH2～3 hour; 5%NaOH1～2 sky and water flushing; 5%NaOH1～2 sky and water flushing; 5%NaOH3～4 sky and water flushing).Use hot water separating impurity (stir, sieve) subsequently, carry out chlorine by chlorine again and float.At last, carry out acidleach (dense HCI, 2 hours; 1～2% hydrochloric acid 1～2 day).This kind extracting method, not only technological process is quite loaded down with trivial details, and needs several reagent repeated treatments, thereby causes costing an arm and a leg, and is difficult for industrialization.
The invention a kind of technology simple and be suitable for the novel process of the extraction gutta-percha of places of origin of raw materials business enterprise expand, and designed special waterpower alone and smashed and analyse glue machinery.New technological flow as shown in Figure 1, its main contents are as follows: Folium Eucommiae (or skin) is placed in the pond (1) cleans earlier, then it is sent into fermentation in the fermentation vat (2), flushing dries in water extracter (3) subsequently, boiling in the pulp digester (4) of then material being packed into.Material after the boiling is sent into waterpower beating crusher (5) and is smashed after water extracter (3) washes drying once more.It is 2～20% that waterpower is smashed concentration; It is below 50 ℃ that waterpower is smashed temperature; It is 20～80 meter per seconds that waterpower is smashed speed, and it then is 30～50 meter per seconds that best waterpower is smashed speed.Sizing material after smashing sieves through testing sifter (6).To sieve collodion silk rinsing in floating parser (7), the clean gutta-percha of rinsing is sent into compound stalk forming in the press (8).Boiling then makes xylogen, Mierocrystalline cellulose increase proportion and further destroys tree lace and Mierocrystalline cellulose on every side in above-mentioned technology.Dry flushing and can remove waste liquid; Smash is for Folium glue wire is dissociated out; The gutta-percha that the screen analysis rinsing then can obtain meeting the requirements; Compound stalk forming is convenient to packed and transported.
Technical process of the present invention is compared with existing processes, its essential characteristic is: extract Folium glue wire with high speed waterpower beating crusher from Folium Eucommiae (or skin), thereby avoided steps such as loaded down with trivial details repeatedly pulverizing filtration, processing, reduced the centrifugation that is difficult to operate.Waterpower beating crusher structure shown in Fig. 2 (a), (9) beating crusher urceolus wherein; (10) rotating propeller blade sheet; (11) turning axle; (12) support; (13) motor.Fig. 2 (b) is the beating crusher schematic top view.This waterpower beating crusher cylindrical shell end section is easy to produce other geometricdrawing of eddy current in addition.All processes all carries out except that boiling at normal temperatures, and step is few, device simple, cheap and easy to operate, thus reduced cost.
Now row are as follows for two example two:
Example 1: after getting 100 gram Folium Eucommiaes (amount to over dry leaf 81 gram) washings, fermentation, again through the 2%NaOH aqueous solution in 80 ℃ of boilings 135 minutes, after rinsing is clean, in the waterpower beating crusher, smashed 2 minutes, through the rinsing of sieving, glue 3 grams.
Example 2: after getting 500 gram Folium Eucommiaes (amount to over dry leaf 400 gram) washes clean, fermentation through the boiling 120 minutes in 105 ℃ of steam cookers of the 1%NaOH aqueous solution, places the waterpower beating crusher to smash 3 minutes more again after the rinsing, through the rinsing of sieving, glue 12 grams.
Test result:
Putting forward the glue rate is that the general Folium Eucommiae gel content of 3～4.4%(is 3～5%);
Product extracts with toluene, but the colloidal sol branch reaches more than 85%;
Insoluble matter is below 15%;
The softening temperature that differential thermal analysis records is 63 ℃.
Claims (4)
1, a kind of method of extracting gutta-percha is a raw material with Folium Eucommiae (or skin), by washing fermentation or boiling, dry flushing, waterpower is smashed, gutta-percha is extracted in the technical process of screen analysis rinsing and compound stalk forming, it is characterized in that the waterpower of carrying out high-speed eddy current type smashes, and Folium glue wire dissociates.
2, extraction gutta-percha method according to claim 1 is characterized in that having adopted high-speed eddy current type waterpower beating crusher; This machine drum body end face is the geometricdrawing that is easy to produce eddy current.
3, extraction gutta-percha method according to claim 1, it is 2～20% that the waterpower that it is characterized in that high-speed eddy current type is smashed concentration; It is below 50 ℃ that waterpower is smashed temperature; It is 20～30 meter per seconds that waterpower is smashed speed.
4, waterpower according to claim 3 is smashed speed, it is characterized in that the optimum velocity that waterpower is smashed is 30～50 meter per seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100216A CN86100216B (en) | 1986-01-16 | 1986-01-16 | Gutta-percha extraction from eucommia leaves or barks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86100216A CN86100216B (en) | 1986-01-16 | 1986-01-16 | Gutta-percha extraction from eucommia leaves or barks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86100216A true CN86100216A (en) | 1986-09-10 |
| CN86100216B CN86100216B (en) | 1987-08-05 |
Family
ID=4800926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86100216A Expired CN86100216B (en) | 1986-01-16 | 1986-01-16 | Gutta-percha extraction from eucommia leaves or barks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86100216B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036724C (en) * | 1992-12-24 | 1997-12-17 | 中国科学院化学研究所 | Extracting method for gutta-percha |
| WO2009113425A1 (en) * | 2008-03-14 | 2009-09-17 | 日立造船株式会社 | Biopolymer originating in eucommia ulmoides |
| CN102643610A (en) * | 2011-02-16 | 2012-08-22 | 严晓敏 | Production method for extracting natural polymer material from eucommia pericarp |
| CN101157827B (en) * | 2007-09-27 | 2014-03-05 | 贵州大学 | Method for extracting filament gutta-percha from eucommia leaf and skin |
| CN111808298A (en) * | 2020-07-13 | 2020-10-23 | 中国科学院广州能源研究所 | Method for extracting gutta-percha from eucommia ulmoides by dilute acid hydrolysis |
-
1986
- 1986-01-16 CN CN86100216A patent/CN86100216B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036724C (en) * | 1992-12-24 | 1997-12-17 | 中国科学院化学研究所 | Extracting method for gutta-percha |
| CN101157827B (en) * | 2007-09-27 | 2014-03-05 | 贵州大学 | Method for extracting filament gutta-percha from eucommia leaf and skin |
| WO2009113425A1 (en) * | 2008-03-14 | 2009-09-17 | 日立造船株式会社 | Biopolymer originating in eucommia ulmoides |
| JP2009221306A (en) * | 2008-03-14 | 2009-10-01 | Hitachi Zosen Corp | Biopolymer originating in eucommia ulmoides |
| US8093338B2 (en) | 2008-03-14 | 2012-01-10 | Hitachi Zosen Corporation | Biopolymer originating in Eucommia ulmoides |
| CN102643610A (en) * | 2011-02-16 | 2012-08-22 | 严晓敏 | Production method for extracting natural polymer material from eucommia pericarp |
| CN111808298A (en) * | 2020-07-13 | 2020-10-23 | 中国科学院广州能源研究所 | Method for extracting gutta-percha from eucommia ulmoides by dilute acid hydrolysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86100216B (en) | 1987-08-05 |
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Legal Events
| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| PB01 | Publication | ||
| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Chen Zengbo|Yan Ruifang|Wang Jingchun|Yang yun|Di Wenhui|Wei Shouzuo False: Chen Tanbo Number: 17 Page: 28 Volume: 2 |
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| C06 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ERR | Gazette correction |
Free format text: CORRECT FROM: (INVENTOR)CHEN TANBO TO: CHEN ZENGBO YAN RUIFANG WANG JINGCHUN YANG YUN ZHAI WENHUIWEI SHOUZUO |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |