CN104568623A - Method for measuring hardness of biomass material - Google Patents
Method for measuring hardness of biomass material Download PDFInfo
- Publication number
- CN104568623A CN104568623A CN201410717083.6A CN201410717083A CN104568623A CN 104568623 A CN104568623 A CN 104568623A CN 201410717083 A CN201410717083 A CN 201410717083A CN 104568623 A CN104568623 A CN 104568623A
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- hardness
- instrument
- biological material
- measuring method
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title abstract description 20
- 239000002028 Biomass Substances 0.000 title abstract 5
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000012620 biological material Substances 0.000 claims description 24
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- -1 xylogen Substances 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- 239000010903 husk Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007542 hardness measurement Methods 0.000 description 2
- 238000009666 routine test Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013031 physical testing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a method for measuring the hardness of a biomass material. The method comprises the steps of grinding the biomass material into powder, placing the powder into pressurizing forming equipment to press and shape a lump with the flat surface, and then measuring the hardness of the biomass material by a hardness meter. The method has the advantages of strong operability, accurate determination result and high reproducibility, can be carried out in common routine laboratories, and can provide a reliable reference base for accurate determination of the biomass material.
Description
Technical field
The present invention relates to a kind of measuring method of biological material hardness, belong to material science.
Background technology
The ability that opposing hard object in material local is pressed into its surface is called hardness.Solid to external world object invasion local resistivity, be the index of more various material soft or hard.Owing to there being different method of testings, so there is different hardness standards.
Because biological material is mostly unconsolidated material (except arbor, nut shell etc.), not easily directly measure hardness, and most of qualimeter is all measurement for the flat surface of planar solid (or film) and designs, although hardness method and Using Nanoindentation can measure the hardness of a part of biological material, but instrument price is expensive, daily servicing cost is high, require also very harsh to biological material material and surface state, the daily product quality monitoring being not suitable with domestic consumer uses.
The powder of organic synthesis macromolecular material can pass through melting method, is cast film, then measures its hardness with hardness tester, and a biological material meeting heat resolve mostly, this method cannot be adopted; Document has method to adopt epoxy resin to make cementing agent, its hardness [physical testing 1996 is measured again after being solidified by powder body material, (2): 34], also there is method to adopt quick talking cement to do consolidating agent, after being solidified by powder body material, measure its hardness [oil drilling technology, 2003 again, 31(3): 7], these methods introduce external material, and self also has certain hardness, and the data measured cannot represent the stiffness characteristics of biological material self.
Summary of the invention
The object of the invention is for current the deficiency existing for biological material Determination of Hardness method, a kind of accurate quantification is provided to measure the method for biological material hardness, that is: be the solid with flat surface by biological material sample preparation, adopt existing hardness measurement instrument equipment simple and easy to get to carry out hardness measurement to it.The method have workable, measurement result is accurate, reappearance is high, can carry out the advantage measured at general Routine Test Lab, and provides reliable reference frame for the contrast of hardness between biological material.
Technical scheme of the present invention is:
The measuring method of biological material hardness: pulverize biological material for a powder, putting into press-molding apparatus, is the block with flat surface by extrusion forming, measures its hardness with hardness tester.
Biological material in the present invention is selected from one or more in coir fibre, starch, xylogen, bamboo fibre, agricultural crop straw, leaf, grass.
The particle diameter of the powder be ground in this method is 10 ~ 1000 microns.During extrusion forming, applying pressure is 10 ~ 200 MPa, and molding time is 0.2 ~ 10 minute.The available hardness tester of this method is selected from one or more in shore hardness instrument, scratch hardness instrument, Brinell hardness instrument, Vickers hardness instrument, hardness leeb instrument, Barcol hardness instrument, Knoop hardness instrument, microhardness instrument, nanometer penetration hardness instrument.
Compared with prior art, the present invention has the following advantages: this law have workable, measurement result is accurate, reappearance is high, can carry out the advantage measured at general Routine Test Lab, the Accurate Measurement for biological material provides reliable reference frame.In addition, the present invention is that biological material product development, production and quality control provide effective guarantee.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of measuring method of coconut husk material hardness, comprise the following steps: the powder by coconut husk material disintegrating being particle diameter 50 microns, extrusion forming on sheeter, applying pressure is 35 MPa, molding time is 1 minute, and measuring its hardness with shore hardness instrument (D type) is 75H.
Embodiment 2
A measuring method for bamboo material hardness, comprises the following steps: the powder by bamboo material disintegrating being particle diameter 15 microns, extrusion forming on sheeter, and applying pressure is 150 MPa, and molding time is 9 minutes, and measuring its hardness with shore hardness instrument (D type) is 95H.
Embodiment 3
A measuring method for starch material hardness, comprises the following steps: the powder by coconut husk material disintegrating being particle diameter 200 microns, extrusion forming on sheeter, and applying pressure is 10 MPa, and molding time is 0.5 minute, and measuring its hardness with scratch hardness instrument is 1 grade.
The above; be only the better embodiment of the present invention, but protection scope of the present invention is not limited to therewith, be anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (6)
1. a measuring method for biological material hardness, it is characterized in that biological material to pulverize as powder, putting into press-molding apparatus, is the block with flat surface by extrusion forming, measures its hardness with hardness tester.
2. the measuring method of biological material hardness according to claim 1, is characterized in that one or more that described biological material is selected from coir fibre, starch, xylogen, bamboo fibre, agricultural crop straw, leaf, grass.
3. the measuring method of biological material hardness according to claim 1, is characterized in that the particle diameter of described powder is 10 ~ 1000 microns.
4. the measuring method of biological material hardness according to claim 1, it is characterized in that described extrusion forming applies pressure is 10 ~ 200 MPa.
5. the measuring method of biological material hardness according to claim 1, is characterized in that the molding time of described extrusion forming is 0.2 ~ 10 minute.
6. the measuring method of biological material hardness according to claim 1, is characterized in that one or more that described hardness tester is selected from shore hardness instrument, scratch hardness instrument, Brinell hardness instrument, Vickers hardness instrument, hardness leeb instrument, Barcol hardness instrument, Knoop hardness instrument, microhardness instrument, nanometer penetration hardness instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717083.6A CN104568623A (en) | 2014-08-13 | 2014-12-02 | Method for measuring hardness of biomass material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396944 | 2014-08-13 | ||
| CN201410717083.6A CN104568623A (en) | 2014-08-13 | 2014-12-02 | Method for measuring hardness of biomass material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568623A true CN104568623A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410717083.6A Pending CN104568623A (en) | 2014-08-13 | 2014-12-02 | Method for measuring hardness of biomass material |
Country Status (1)
| Country | Link |
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| CN (1) | CN104568623A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632542A (en) * | 2018-12-28 | 2019-04-16 | 华北水利水电大学 | A method of measurement hard coating hardness |
| CN111397993A (en) * | 2020-05-20 | 2020-07-10 | 江苏佰健环保科技有限公司 | Mohs hardness detection method for thermosensitive fine granular material |
| CN114354313A (en) * | 2021-12-29 | 2022-04-15 | 云南华测检测认证有限公司 | Food detection device with built-in pretreatment structure |
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2014
- 2014-12-02 CN CN201410717083.6A patent/CN104568623A/en active Pending
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| CN101712804A (en) * | 2009-11-26 | 2010-05-26 | 刘宪政 | Plant fiber composition, composite material, preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632542A (en) * | 2018-12-28 | 2019-04-16 | 华北水利水电大学 | A method of measurement hard coating hardness |
| CN109632542B (en) * | 2018-12-28 | 2021-07-23 | 华北水利水电大学 | A method for measuring the hardness of hard coatings |
| CN111397993A (en) * | 2020-05-20 | 2020-07-10 | 江苏佰健环保科技有限公司 | Mohs hardness detection method for thermosensitive fine granular material |
| CN111397993B (en) * | 2020-05-20 | 2022-09-06 | 江苏佰健环保科技有限公司 | Mohs hardness detection method for thermosensitive fine granular material |
| CN114354313A (en) * | 2021-12-29 | 2022-04-15 | 云南华测检测认证有限公司 | Food detection device with built-in pretreatment structure |
| CN114354313B (en) * | 2021-12-29 | 2023-12-26 | 云南华测检测认证有限公司 | Food detection device with built-in pretreatment structure |
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Application publication date: 20150429 |