CN203639463U - Dynamic degradation device for biodegradable polymer material - Google Patents
Dynamic degradation device for biodegradable polymer material Download PDFInfo
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- CN203639463U CN203639463U CN201320620930.8U CN201320620930U CN203639463U CN 203639463 U CN203639463 U CN 203639463U CN 201320620930 U CN201320620930 U CN 201320620930U CN 203639463 U CN203639463 U CN 203639463U
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- peristaltic pump
- degradation
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- control system
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Abstract
The utility model relates to a degradation device for a biodegradable polymer material and provides a dynamic degradation device for a biodegradable polymer material. The dynamic degradation device comprises a solution tank, a feeding peristaltic pump, a circulating peristaltic pump, a degradation tank and a pressure control system, wherein the solution tank is provided with a temperature control system; an inlet of the feeding peristaltic pump is connected with a material outlet of the solution tank, and an outlet of the feeding peristaltic pump is connected with an inlet of the degradation tank; an outlet of the degradation tank is connected with an inlet of the circulating peristaltic pump; an outlet of the circulating peristaltic pump is connected with an inlet of the solution tank; the pressure control system is arranged on a pipeline located between the degradation tank and the circulating peristaltic pump. The degradation device can be used for quantitatively measuring the degradation experimental result of a solid specimen, and the evaluation lasts for several hours to several days. The degradation device is suitable for measuring a degradation product and explaining the degradation mechanism, good in repeatability and capable of improving the sensitivity and better realizing quantitative measurement.
Description
Technical field
The utility model relates to a kind of decomposition apparatus of high-molecular biologic degradable material.
Background technology
Biodegradable material, refers to the material that under the microbial process of the nature existence such as bacterium, fungi, algae, chemistry, biology or physical action can occur and degrade or decompose.Be characterized in, losing as the utility value of material and after becoming rubbish, not only can not destroying ecotope, can improving on the contrary the biological activity of soil.The evaluation method of biodegradability is that gradual perfection gets up on the basis of degradation principles, is mainly at present to realize by some biological chemistries and microbiological laboratory facilities.Its degradation method is roughly as follows:
(1) field environment test: the method is that sample is directly embedded in to forest or ploughs in soil, mud, compost, or is immersed in river or seawater.The microbial source adopting is from the micropopulation in this physical environment.After degraded after a while, the deteriorated of the mass loss of degradable polymer material and properties can be detected.
The advantage of the method is truly to reflect the decomposition situation of sample at occurring in nature.But test period is long, because of the variation of the factors such as soil property, microbe species, temperature, humidity, poor repeatability, degradation production is difficult to determine simultaneously, data reappearance is also poor.Degree of decomposition can only represent with quality minimizing and metamorphosis, be not suitable for the research to decomposition mechanism.
(2) environmental microorganism test: sample to be tested imbedded or immersed the micropopulation in container, carrying out laboratory culture.Although repeatability and evaluation time that the problem existing is test are all obviously better than field environment test, but still are not very good.In addition the method is not too applicable to the mensuration of degraded product and explains mechanism of degradation, and meterial additive or the multipolymer of sneaking into affect structure.
(3) specified microorganisms in vitro tests: the microbial source of this method be can decompose, the microorganism of the high molecular independent separation of mineralising object.This microbial inoculant is cultivated on sample to (great majority for liquid culture) after for some time, range estimation colony growth situation, is used the variation of microscopic examination specimen surface, measures its mass loss, and measures the variation of some characteristic such as molecular weight of sample.The shortcoming of this method is that step is cumbersome, and the field relating to is wider, can only be applicable to limited macromolecular material.
(4) use for laboratory decomposition apparatus-shaking table: while doing degradation experiment with shaking table, due to the mist that hydraulic shock produces, the bottle closure material that easily makes to degrade is moist and cause the pollution of culture, also can form the degraded solutions of inhomogeneous concentration simultaneously; Degraded solutions can go bad for a long time and to change degraded solutions cumbersome, and the degradation data stability obtaining is very poor.
Utility model content
The purpose of this utility model is to provide a kind of dynamic degradation device of high-molecular biologic degradable material, to overcome above-mentioned the deficiencies in the prior art.
Dynamic degradation device of the present utility model, comprises the solution pool, charging peristaltic pump, circulation peristaltic pump, degraded groove and the pressure control system that are provided with temperature controlling system;
The entrance of described charging peristaltic pump is connected with the material outlet of described solution pool, charging wriggling pump outlet is connected with the entrance of degraded groove, the outlet of degraded groove is connected with the entrance of circulation peristaltic pump, circulation wriggling pump outlet is connected with the entrance of solution pool, and described pressure control system is arranged on the pipeline between degraded groove and circulation peristaltic pump;
Compared with the existing methods, the beneficial effects of the utility model are: degradation experiment result that can quantitative assay (occasion of solid sample), evaluating required time is several hours to several days.Be applicable to the mensuration of degraded product and explain mechanism of degradation, reproducible, sensitivity can be improved, and quantitative assay can be carried out preferably.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is degraded groove structural representation.
Fig. 3 is for putting model front view.
Embodiment
Referring to Fig. 1～Fig. 3, described dynamic degradation device, comprises the solution pool 1, charging peristaltic pump 2, circulation peristaltic pump 3, degraded groove 4 and the pressure control system 5 that are provided with temperature controlling system 101;
The entrance of described charging peristaltic pump 2 is connected with the material outlet of described solution pool 1, the outlet of charging peristaltic pump 2 is connected with the entrance of degraded groove 4, the outlet of degraded groove 4 is connected with the entrance of circulation peristaltic pump 3, the outlet of circulation peristaltic pump 3 is connected with the entrance of solution pool 1, and described pressure control system 5 is arranged on the pipeline between degraded groove 4 and circulation peristaltic pump 3;
Referring to Fig. 1, described pressure control system 5 comprises: pressure transmitter 501, air compressor machine 502, system balancing valve 503, atmospheric air port equilibrium valve 504, atmospheric air port 505, the gentle pumping hole 507 of intake valve 506;
One end of described system balancing valve 503 is connected with air compressor machine 502 gas receivers, the other end by pipeline respectively with pressure transmitter 501, degraded groove 4 and circulation peristaltic pump 3 between pipeline and atmospheric air port 505 be connected, described atmospheric air port equilibrium valve 504 is arranged on atmospheric air port 505 places, described air pump mouth 507 is arranged on the gas receiver of air compressor machine 502, and described intake valve 506 is arranged on air pump mouth 507 places;
The principle of work of pressure control system 5 is as follows:
Air pressure is to be set by the spring pre-tightening degree of air pressure regulator and adjusting bolt, in the time that gas receiver air pressure is raised to predetermined pressure, by the diaphragm of moving system equilibrium valve and drive core bar to rising, core bar and valve are thrown off, return spring, valve jack-up, seals the pore identical with atmosphere simultaneously.At this moment pressurized air enters by core bar the pressure loosening valve that compressor cylinder covers, and makes pressure loosening valve valve rod descending, and the sheet of the intake valve 506 of air compressor machine is backed down, and it can not be closed.Air compressor machine is identical with atmosphere like this.Air compressor machine starts idle running, no longer produces pressurized air.When gas receiver air pressure is during lower than 8 kg/cm, it is descending that spring promotes diaphragm, core bar is contacted with valve, close the passage between gas receiver and pressure loosening valve, core bar is descending simultaneously pushes up valve from valve seat, and exhaust-duct is opened, and the pressurized air of pressure loosening valve top pipeline is just got rid of by the venting port of air pressure regulator like this, pressure loosening valve bar is return under the effect of spring, and intake valve starts to seal.Air compressor machine is normally worked.
Referring to Fig. 2 and Fig. 3, described degraded groove 4 is selected from dialyzer or is provided with the container of shelf 401, and described shelf 401 is for being provided with the batten of jack 402, and described thing plate 401 is fixed on the inwall of container, and described jack 402 is for fixing underproof sample.
Adopt above-mentioned dynamic degradation device, carry out the method for the dynamic degradation of polymeric biomaterial, comprise the steps:
K proteolytic enzyme buffered soln is added to solution pool 1, polymeric biomaterial is fixed in the jack 402 of shelf 401, controlling temperature by temperature controlling system 101 is 5～70 ℃, pressure by pressure control system (5) Controlling System is 10KPa～80MPa, then start charging peristaltic pump 2 and circulation peristaltic pump (3), buffered soln is circulated, the linear velocity of controlling K proteolytic enzyme buffered soln is 100～200mL/min, make polymeric biomaterial, under dynamically, degrade, material to the Degrading experiment through different time detects, can obtain the degradation property of this material.
Claims (3)
1. the dynamic degradation device of high-molecular biologic degradable material, is characterized in that, comprises the solution pool (1), charging peristaltic pump (2), circulation peristaltic pump (3), degraded groove (4) and the pressure control system (5) that are provided with temperature controlling system (101);
The entrance of described charging peristaltic pump (2) is connected with the material outlet of described solution pool (1), the outlet of charging peristaltic pump (2) is connected with the entrance of degraded groove (4), the outlet of degraded groove (4) is connected with the entrance of circulation peristaltic pump (3), the outlet of circulation peristaltic pump (3) is connected with the entrance of solution pool (1), and described pressure control system (5) is arranged on the pipeline between degraded groove (4) and circulation peristaltic pump (3).
2. device according to claim 1, it is characterized in that, described pressure control system (5) comprises pressure transmitter (501), air compressor machine (502), system balancing valve (503), atmospheric air port equilibrium valve (504), atmospheric air port (505), the gentle pumping hole of intake valve (506) (507);
One end of described system balancing valve (503) is connected with air compressor machine (502) gas receiver, the other end by pipeline respectively with pressure transmitter (501), degraded groove (4) and circulation peristaltic pump (3) between pipeline and atmospheric air port (505) be connected, described atmospheric air port equilibrium valve (504) is arranged on atmospheric air port (505) and locates, described air pump mouth (507) is arranged on the gas receiver of air compressor machine (502), and described intake valve (506) is arranged on air pump mouth (507) and locates.
3. device according to claim 1, it is characterized in that, described degraded groove (4) is selected from dialyzer or is provided with the container of shelf (401), and described shelf (401) is for being provided with the batten of jack (402), and described thing plate (401) is fixed on the inwall of container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620930.8U CN203639463U (en) | 2013-10-09 | 2013-10-09 | Dynamic degradation device for biodegradable polymer material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620930.8U CN203639463U (en) | 2013-10-09 | 2013-10-09 | Dynamic degradation device for biodegradable polymer material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203639463U true CN203639463U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620930.8U Expired - Fee Related CN203639463U (en) | 2013-10-09 | 2013-10-09 | Dynamic degradation device for biodegradable polymer material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203639463U (en) |
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2013
- 2013-10-09 CN CN201320620930.8U patent/CN203639463U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161009 |