CN100360613C - Temperature sensitive composite materials and preparing process thereof - Google Patents
Temperature sensitive composite materials and preparing process thereof Download PDFInfo
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- CN100360613C CN100360613C CNB2005100494657A CN200510049465A CN100360613C CN 100360613 C CN100360613 C CN 100360613C CN B2005100494657 A CNB2005100494657 A CN B2005100494657A CN 200510049465 A CN200510049465 A CN 200510049465A CN 100360613 C CN100360613 C CN 100360613C
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- Prior art keywords
- temperature sensitive
- composite materials
- sensitive composite
- paraffin
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- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000012188 paraffin wax Substances 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 19
- 238000000498 ball milling Methods 0.000 claims description 13
- 229910052786 argon Inorganic materials 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 15
- 230000004044 response Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000002994 raw material Substances 0.000 description 8
- 239000011540 sensing material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000003446 memory effect Effects 0.000 description 2
- 229920000431 shape-memory polymer Polymers 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007334 memory performance Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention provides a temperature sensitive composite material which is composed of nanometer copper grains with surface coated with a protective film made of paraffin. The method for preparing the temperature sensitive composite material is that after mixed, the copper and paraffin are balled by a ball grinder for 50 to 150 hours under the protection of inert gas to obtain the temperature sensitive composite material. The present invention has the advantages of high thermal response speed, good thermal expansibility, cheap and ordinary material, easy process and low cost. The present invention can be optionally processed and formed, and is favorable for industrial production.
Description
(1) technical field
The present invention relates to a kind of temperature sensitive composite materials, especially a kind of nano-copper base temperature sensitive composite materials.
(2) background technology
Temperature sensing material integrates sensing, driving and material structure, has functions such as perception, driving and automatic control, is one of core technology of making temperature sensitive observing and controlling element of high precision and mechanism, also is the important trend of current Materials science development.
At present, domestic and international development to temperature sensing material mainly concentrates on several fields such as bimetallic strip, shape memory alloy, temperature sensitive shape-memory polymer and temperature sensitive ferrite.For bimetallic strip and shape memory alloy, though have good thermo-sensitivity, material shape is fixed, can not become with the observing and controlling component structure, make the product of various complicated shapes, thus significant limitation had, and thrermostatic bimetal-plate also exists shortcomings such as unstable.In shape memory alloy, good the costing an arm and a leg of NiTi base alloy shape memory effect, though copper base alloy is cheap, but the memory performance poor stability, ferrous alloy just begins one's study, that is that all right is ripe for technology.Shape-memory polymer is compared characteristics such as having memory effect is big, temperature sensor is low, inexpensive, easy machine-shaping, wide accommodation with shape memory alloy, recently enjoy people's attention, but remain little as deformation recovery power, it is not high to reply precision yet, and mostly is weak point such as unidirectional memory.Temperature sensitive Ferrite Material is different with general ferrite, and it requires height to the physicals of Ferrite Material itself, and therefore significant limitation is also arranged.
(3) summary of the invention
For solving above shortcomings in the existing temperature sensing material technology, the invention provides temperature sensing material that a kind of thermo-sensitivity is good, the raw material inexpensive process is simple, cost is low and preparation method thereof.
For reaching goal of the invention the technical solution used in the present invention be:
A kind of temperature sensitive composite materials, described temperature sensitive composite materials is made up of the nanometer shot copper that the surface is coated with paraffin-protected film, and described paraffin-protected film is 5～20: 40 with the ratio of nanometer shot copper quality.Although paraffin has the good advantage of thermal expansivity as temperature sensing material, there is the low shortcoming of thermal conductivity in it as organism, because the thermal conductivity of paraffin itself is very low, causes its thermal response speed slow.And the thermal conductivity of copper powder is very big, therefore considers to add in paraffin the thermo-sensitivity that copper powder improves material.
Described temperature sensitive composite materials quality is composed as follows:
40 parts of copper powders
Fusing point is 35～65 ℃ 5～20 parts in a paraffin.
Further, described temperature sensitive composite materials quality is composed as follows:
40 parts of copper powders
Fusing point is 47～51 ℃ 5～20 parts in a paraffin.
Further again, described temperature sensitive composite materials quality is composed as follows:
40 parts of copper powders, fusing point are 47～51 ℃ 5 parts in paraffin.
The method for preparing described temperature sensing material, described method is as follows: be 40: 5～20 copper powder with mass ratio with after paraffin mixes, under protection of inert gas, obtained described temperature sensitive composite materials in 50～150 hours with the ball mill ball milling.Described rare gas element is to the stable gas of copper powder, specifically refers to helium, neon, argon, krypton, xenon, nitrogen.
Further, described method is as follows: with quality is that the paraffin that 40 parts copper powder and 5～20 parts of fusing points are 35～65 ℃ mixes, and under argon shield, obtains described temperature sensitive composite materials in 50～150 hours by the high energy ball mill ball milling.
Because the materials such as nano composite material, nanocrystalline pure metal that utilized the successful preparation of high-energy ball milling method; therefore select high energy method ball milling to prepare the nano-copper base temperature sensitive composite materials among the present invention; paraffin is coated on around the nanometer shot copper; formed layer protecting film; completely cut off contacting of shot copper and air; improved the antioxidant property of shot copper; and because the small-size effect of nano material; after copper powder reaches nano level; it is big that its thermal conductivity becomes, thereby improved the thermo-sensitivity of whole matrix material.
Preferably, described method is as follows: with quality is that 40 parts copper powder and 20 parts paraffin (48～51 ℃ of fusing points) mix, and under argon shield, obtains described temperature sensitive composite materials in 80 hours by the high energy ball mill ball milling.
The beneficial effect of temperature sensing material of the present invention and preparation method thereof is mainly reflected in: (1) described temperature sensitive composite materials thermal response speed is fast, thermal expansivity good and can arbitrarily shape; (2) raw material cheapness, common, technology is simple, cost is low, is beneficial to suitability for industrialized production.
(4) embodiment
The present invention is described further below in conjunction with concrete mode:
Embodiment 1:
Preparation of raw material: copper powder 2kg, paraffin (43～45 ℃ of fusing points) 1kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 80 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
The temperature sensitive composite materials of gained is packed in the self-control copper pipe (diameter 5mm, length 20mm, end sealing), utilizes hot press forming technology to prepare near moulding (mold temperature for approach selected paraffin melting point).Place 50 ℃ of thermostat water baths, reach 7.5% 40 seconds relative expansion amounts, matrix material does not dissolve defeated and dispersed, and extension is divided into column.
Embodiment 2:
Preparation of raw material: copper powder 4kg, paraffin (43～45 ℃ of fusing points) 1kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 50 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
Embodiment 3:
Preparation of raw material: copper powder 4kg, paraffin (43～45 ℃ of fusing points) 0.5kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 100 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
Embodiment 4:
Preparation of raw material: copper powder 4kg, paraffin (47～51 ℃ of fusing points) 2kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 120 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
Embodiment 5:
Preparation of raw material: copper powder 4kg, paraffin (47～51 ℃ of fusing points) 1kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 150 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
Embodiment 6:
Preparation of raw material: copper powder 4kg, paraffin (45～51 ℃ of fusing points) 0.5kg
Material preparation: after each component mixed by a certain percentage, place the agate jar, adopt the agate ball that differs in size, under argon shield, made described temperature sensitive composite materials in 80 hours by the planetary high-energy ball mill ball milling.Drum's speed of rotation is 200r/min.
Claims (7)
1. temperature sensitive composite materials is characterized in that described temperature sensitive composite materials is made up of the nanometer shot copper that the surface is coated with paraffin-protected film, and described paraffin-protected film is 5～20: 40 with the ratio of nanometer shot copper quality.
2. temperature sensitive composite materials as claimed in claim 1 is characterized in that described temperature sensitive composite materials quality is composed as follows:
40 parts of copper powders
Fusing point is 35～65 ℃ 5～20 parts in a paraffin.
3. temperature sensitive composite materials as claimed in claim 2 is characterized in that described temperature sensitive composite materials quality is composed as follows:
40 parts of copper powders
Fusing point is 47～51 ℃ 5～20 parts in a paraffin.
4. temperature sensitive composite materials as claimed in claim 3 is characterized in that described temperature sensitive composite materials quality group becomes: 40 parts of copper powders, fusing point are 47～51 ℃ 5 parts in paraffin.
5. preparation is characterized in that as the method for the described temperature sensitive composite materials of one of claim 1～4 described method is as follows:
Be 40: 5～20 copper powder with mass ratio with after paraffin mixes, under protection of inert gas, obtained described temperature sensitive composite materials in 50～150 hours with the ball mill ball milling.
6. the preparation method of temperature sensitive composite materials as claimed in claim 5 is characterized in that described method is as follows:
With quality is that the fusing point of 40 parts copper powder and 5～20 parts is that 35～65 ℃ paraffin mixes, and under argon shield, obtains described temperature sensitive composite materials in 50～150 hours by the high energy ball mill ball milling.
7. the preparation method of temperature sensitive composite materials as claimed in claim 5 is characterized in that described method is as follows:
With quality is that the paraffin that 40 parts copper powder and 20 parts of fusing points are 48～51 ℃ mixes, and under argon shield, obtains described temperature sensitive composite materials in 80 hours by the high energy ball mill ball milling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100494657A CN100360613C (en) | 2005-03-25 | 2005-03-25 | Temperature sensitive composite materials and preparing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100494657A CN100360613C (en) | 2005-03-25 | 2005-03-25 | Temperature sensitive composite materials and preparing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1837288A CN1837288A (en) | 2006-09-27 |
| CN100360613C true CN100360613C (en) | 2008-01-09 |
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| CNB2005100494657A Expired - Fee Related CN100360613C (en) | 2005-03-25 | 2005-03-25 | Temperature sensitive composite materials and preparing process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN100360613C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7919646B2 (en) | 2006-07-14 | 2011-04-05 | Invista North America S.A R.L. | Hydrocyanation of 2-pentenenitrile |
| CN101890506B (en) * | 2010-07-31 | 2013-04-24 | 太原理工大学 | Method for preparing nano-copper |
| CN101949004A (en) * | 2010-09-10 | 2011-01-19 | 常州大学 | Preparation method of nano copper film-based copper nano structure |
| CN102303114B (en) * | 2011-05-30 | 2013-06-26 | 深圳市格林美高新技术股份有限公司 | Cladding cobalt powder and preparation method thereof |
| CN102746827B (en) * | 2012-07-04 | 2014-06-04 | 浙江工业大学 | Preparation method for nanometer copper/paraffin thermo-sensitive composite material |
| CN106563802B (en) * | 2015-10-08 | 2020-02-07 | 荆门市格林美新材料有限公司 | Preparation method of granular coated cobalt powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216025A (en) * | 1983-05-24 | 1984-12-06 | Teikoku Piston Ring Co Ltd | Wax element type remote temperature detector and transmitter |
| CN1061809A (en) * | 1990-12-01 | 1992-06-10 | 曹松山 | The manufacture method of electroformed copper mould and prescription thereof |
-
2005
- 2005-03-25 CN CNB2005100494657A patent/CN100360613C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216025A (en) * | 1983-05-24 | 1984-12-06 | Teikoku Piston Ring Co Ltd | Wax element type remote temperature detector and transmitter |
| CN1061809A (en) * | 1990-12-01 | 1992-06-10 | 曹松山 | The manufacture method of electroformed copper mould and prescription thereof |
Non-Patent Citations (2)
| Title |
|---|
| 节能冷却系统中温控阀的研制、性能分析与测试. 吴怀超等.液压与气动，第2004年卷第11期. 2004 * |
| 铜基复合材料热敏性的探讨. 楼白杨等.云南大学学报（自然科学版），第24卷第1A期. 2002 * |
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| CN1837288A (en) | 2006-09-27 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Kangyi Sanitary Ware Co., Ltd. Assignor: Zhejiang University of Technology Contract fulfillment period: 2009.5.10 to 2014.5.10 contract change Contract record no.: 2009330001365 Denomination of invention: Temperature sensitive composite materials and preparing process thereof Granted publication date: 20080109 License type: Exclusive license Record date: 2009.6.9 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.10 TO 2014.5.10; CHANGE OF CONTRACT Name of requester: ZHEJIANG KANGYI SANITARY WARE CO.,LTD. Effective date: 20090609 |
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Granted publication date: 20080109 Termination date: 20140325 |