CN112126119A - 一种新型无机耐高温高导热复合填充材料 - Google Patents
一种新型无机耐高温高导热复合填充材料 Download PDFInfo
- Publication number
- CN112126119A CN112126119A CN202011024420.5A CN202011024420A CN112126119A CN 112126119 A CN112126119 A CN 112126119A CN 202011024420 A CN202011024420 A CN 202011024420A CN 112126119 A CN112126119 A CN 112126119A
- Authority
- CN
- China
- Prior art keywords
- thermal
- parts
- temperature
- filling material
- composite filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 238000011049 filling Methods 0.000 title claims abstract description 31
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 29
- 239000010439 graphite Substances 0.000 claims abstract description 29
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 28
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 28
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 24
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 24
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910001868 water Inorganic materials 0.000 claims abstract description 18
- 239000003607 modifier Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 description 9
- 239000000945 filler Substances 0.000 description 8
- 239000007769 metal material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910003471 inorganic composite material Inorganic materials 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 239000000565 sealant Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- -1 borides Chemical class 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013558 reference substance Substances 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3063—Magnesium sulfate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
一种新型无机耐高温高导热复合填充材料,所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中石墨的重量份数为10‑50份,氧化镁的重量份数为20‑50份,硫酸镁的重量份数为10‑20份,水的重量份数为20份,本发明所述的一种新型无机耐高温高导热复合填充材料,按一定比例混合石墨、氧化镁、硫酸镁和水,形成一种新的高导热复合填充材料,导热性能相比于现有的无机复合导热材料更好。
Description
技术领域
本发明涉及无机复合材料领域,特别涉及一种新型无机耐高温高导热复合填充材料。
背景技术
传统导热塑料主要是以高导热的金属、导热胶或无机填料颗粒对高分子基体材料进行均匀填充。当填料量达到一定程度时,填料在体系中形成了类似链状和网状的形态,即形成导热网链。当这些导热网链的取向方向与热流方向平行时,就会在很大程度上提高体系的导热性。
无机非金属材料是由硅酸盐、铝酸盐、硼酸盐、磷酸盐、锗酸盐等原料和(或)氧化物、氮化物、碳化物、硼化物、硫化物、硅化物、卤化物等原料经一定的工艺制备而成的材料,是除金属材料、高分子材料以外所有材料的总称。它与广义的陶瓷材料有等同的含义。无机非金属材料种类繁多,用途各异,目前还没有统一完善的分类方法。一般将其分为传统的(普通的)和新型的(先进的)无机非金属材料两大类。
传统的无机非金属材料主要是指由SiO2, 及其硅酸盐化合物为主要成分制成的材料,包括陶瓷、玻璃、水泥和耐火材料等,此外,搪瓷、磨料、铸石(辉绿岩、玄武岩等)、碳素材料、非金属矿(石棉、云母、大理石等)也属于传统的无机非金属材料。新型无机非金属材料是用氧化物、氮化物、碳化物、硼化物、硫化物、硅化物以及各种无机非金属化合物经特殊的先进工艺制成的材料。主要包括先进陶瓷、非晶态材料、人工晶体、无机涂层、无机纤维等。
石墨(graphite)是一种矿物名,通常产于变质岩中,是煤或碳质岩石(或沉积物)受到区域变质作用或岩浆侵入作用形成。石墨是元素碳的一种同素异形体,每个碳原子的周边连结著另外三个碳原子,排列方式呈蜂巢式的多个六边形,每层间有微弱的范德华引力。由于每个碳原子均会放出一个电子,那些电子能够自由移动,因此石墨属于导电体。石墨是其中一种最软的矿物,不透明且触感油腻,颜色由铁黑到钢铁灰,形状呈晶体状、薄片状、鳞状、条纹状、层状体或散布在变质岩中。石墨的化学性质不活泼,具有耐腐蚀性。另外,石墨的导热性超过钢、铁、铅等金属材料,并且石墨导热系数随温度升高而降低,甚至在极高的温度下,石墨成绝热体。石墨的熔点为3850±50℃,沸点为4250℃,即使经超高温电弧灼烧,重量的损失很小,热膨胀系数也很小。石墨强度随温度提高而加强,在2000℃时,石墨强度提高一倍。
以石墨烯为填料的高导热塑料能够满足热管理、电子工业中高密度、高集成度组装发展的要求。例如纯聚酰胺6(PA6)的热导率为0.338 W/(m·K),当填充50%的氧化铝时,复合材料的热导率为纯PA6的1.57倍;当添加25%的改性氧化锌时,复合材料的热导率比纯PA6提高了3倍;而当添加20%的石墨烯纳米片时,复合材料的热导率达到4.11 W/(m·K),比纯PA6提高了15倍以上,这展示了石墨烯在热管理领域的巨大应用潜力。
一般的暖气片的暖气管内都会使用有机填充物填充,这是因为一般的无机复合材料填充物,要么密度太大,填充后暖气管太重,要么导热系数低,导热性能差,无机复合材料的导热性能和低密度不能兼得,并不能满足暖气管填充物的需求。
发明内容
本发明的目的在于:提供了一种新型无机耐高温高导热复合填充材料,按一定比例混合石墨、氧化镁、硫酸镁和水,形成一种新的高导热复合填充材料,导热性能好,且密度低,解决了上述问题。
本发明采用的技术方案如下:
一种新型无机耐高温高导热复合填充材料,所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中石墨的重量份数为10-50份,氧化镁的重量份数为20-50份,硫酸镁的重量份数为10-20份,水的重量份数为20份。
为了更好地实现本方案,进一步地,所述石墨的重量份数为20份,氧化镁的重量份数为40份,硫酸镁的重量份数为20份,水的重量份数为20份。
为了更好地实现本方案,进一步地,所述材料还包括改性剂,所述改性剂的重量份数为1份。
为了更好地实现本方案,进一步地,所述氧化镁为氧化镁晶须,粒径为纳米级。
制备上述任一项所述的一种新型无机耐高温高导热复合填充材料的方法,包括以下步骤:
步骤S1:将硫酸镁和水混合形成硫酸镁溶液,其中硫酸镁和水的重量份数比为1-2:2;
步骤S2:将步骤S1制得的硫酸镁溶液和氧化镁、石墨混合得到新型无机高导热复合填充材料,其中硫酸镁溶液、氧化镁和石墨的重量份数为2:2:1。
一般有机导热材料的导热系数W会比无机复合导热材料的导热系数W更高,比如,有机硅灌封胶LK-611的导热系数,大于等于0.8,但耐温度只能200度,而常规的无机复合导热材料一般远低于0.8,比如,水泥的导热系数是0.19~0.65W/m·K,矿粉的导热系数是0.26~0.29 W/m·K,粉煤灰的导热系数是0.23 W/m·K。而导热系数高的无机复合材料密度也相对高,一般也不适合做暖气片的填充物,如灰砂砖的导热系数是1.1W/m·K,但是容重为1900Kg/m3,而本方案提供的新型无机高导热复合填充材料,导热系数在常温下可以逼近0.8,且容重低,可以和有机导热材料相当。
综上所述,由于采用了上述技术方案,本发明的有益效果是:
1.本发明所述的一种新型无机耐高温高导热复合填充材料,按一定比例混合石墨、氧化镁、硫酸镁和水,形成一种新的高导热复合填充材料,导热性能好;
2.本发明所述的一种新型无机耐高温高导热复合填充材料,并提出一种制造该材料的方法,先将硫酸镁和水按一定比例混合形成溶液,然后加入石墨、氧化镁形成混合物,形成一种新的高导热复合填充材料,方法简单易实现。
附图说明
为了更清楚地说明本技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图,其中:
图1是本发明的制造方法的流程图;
图2是实施例2的材料样品的TGA测试谱图。
具体实施方式
为了更清楚地说明本发明实施例的技术方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,应当理解,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例,因此不应被看作是对保护范围的限定。基于本发明中的实施例,本领域普通技术工作人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
下面结合图1-图2对本发明作详细说明。
实施例1:
一种新型无机耐高温高导热复合填充材料,所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中石墨的重量份数为10-50份,氧化镁的重量份数为20-50份,硫酸镁的重量份数为10-20份,水的重量份数为20份。
工作原理:一般有机导热材料的导热系数W会比无机复合导热材料的导热系数W更高,比如,有机硅灌封胶LK-611的导热系数,大于等于0.8,但耐温度只能200度,而常规的无机复合导热材料一般远低于0.8,一般有机导热材料的导热系数W会比无机复合导热材料的导热系数W更高,比如,有机硅灌封胶LK-611的导热系数,大于等于0.8,而常规的无机复合导热材料一般远低于0.8,比如,水泥的导热系数是0.19~0.65W/m·K,矿粉的导热系数是0.26~0.29 W/m·K,粉煤灰的导热系数是0.23 W/m·K。而导热系数高的无机复合材料密度也相对高,一般也不适合做暖气片的填充物,如灰砂砖的导热系数是1.1W/m·K,但是容重为1900Kg/m3,而本方案提供的新型无机高导热复合填充材料,导热系数在常温下可以逼近0.8,且容重低,可以和有机导热材料相当。
实施例2
一种新型无机耐高温高导热复合填充材料,所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中所述石墨的重量份数为20份,氧化镁的重量份数为40份,硫酸镁的重量份数为20份,水的重量份数为20份。
工作原理:为了验证本实施例的无机高导热复合填充材料的导热性能,委托天依科创测试中心为本材料做了测试并出具了测试报告,报告编号为TJC2006012,测试时间为2020年7月10日,测试标准为“GB/T 10297-2015 非金属固体材料导热系数的测定”,采用热线法测定,使用热失重分析仪(TGA)进行测试,测试结果为:
在常温23℃±2℃的温度,50%±5%RH的湿度的环境下,本实施例所述的新型无机高导热复合填充材料的导热系数W为0.7951m·K,1000℃下的残余质量为39.67%。
如图2是本实施例的材料样品的TGA测试谱图,其中TG是质量与温度或者时间的关系,在本实施例中是质量关于温度的关系;DTG是质量变化率与温度或时间的关系,即将所得到的TG曲线对温度或时间一阶求导,在本实施例中是TG曲线对温度的一阶求导;DTA测量的是物质和参比物之间的温度差与温度的关系,当试样发生任何物理如相转变、熔化、结晶、升华或化学变化时,所释放或者吸收的热量使试样温度高于或者低于参比物的温度,从而相应的在DTA曲线上得到放热峰或吸收峰,即差热分析曲线。
从谱图中可以看出,样品的TG残留质量在999.5℃时达到最低位,如前面所述为39.67%;而DTG在381.8℃达到峰值为-1.26%/min,在732.3℃时达到峰值-1.61%/min;DTA在464.4℃时达到峰值10.648mW/mg,在885.5℃时达到峰值25.615Mw/mg。
本实施例的其他部分与上述实施例1相同,故不再赘述。
实施例3
一种新型无机耐高温高导热复合填充材料,所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中石墨的重量份数为10-50份,氧化镁的重量份数为20-50份,硫酸镁的重量份数为10-20份,水的重量份数为20份。所述材料还包括改性剂,所述改性剂的重量份数为1份。
进一步地,所述氧化镁为氧化镁晶须,粒径为纳米级。
改性剂是改性外加剂的简称,指单一成分或复合成分,用量在4%以下的,专门生产或配置用于镁水泥改性的化工制剂。各地作为商品出售的各种改性剂,以及各企业自行配置的专门用于改性的改性剂。改性外加剂主要是为了克服镁水泥的各种弊病,改善其性能才添加的。功能性外加剂并非是改善镁水泥的性能,而是赋予镁水泥以各种特殊的功能,它不能克服其各种弊病。可以根据实际需求,向复合填充材料内添加不同的改性剂。
本实施例的其他部分与上述实施例1相同,故不再赘述。
实施例4
制备上述实施例1-3中任一项所述的一种新型无机耐高温高导热复合填充材料的方法,包括以下步骤:
步骤S1:将硫酸镁和水混合形成硫酸镁溶液,其中硫酸镁和水的重量份数比为1-2:2;
步骤S2:将步骤S1制得的硫酸镁溶液和氧化镁、石墨混合得到新型无机高导热复合填充材料,其中硫酸镁溶液、氧化镁和石墨的重量份数为2:2:1。
工作原理:一般有机导热材料的导热系数W会比无机复合导热材料的导热系数W更高,比如,有机硅灌封胶LK-611的导热系数,大于等于0.8,但耐温度只能200度,而常规的无机复合导热材料一般远低于0.8,一般有机导热材料的导热系数W会比无机复合导热材料的导热系数W更高,比如,有机硅灌封胶LK-611的导热系数,大于等于0.8,而常规的无机复合导热材料一般远低于0.8,比如,水泥的导热系数是0.19~0.65W/m·K,矿粉的导热系数是0.26~0.29 W/m·K,粉煤灰的导热系数是0.23 W/m·K。而导热系数高的无机复合材料密度也相对高,一般也不适合做暖气片的填充物,如灰砂砖的导热系数是1.1W/m·K,但是容重为1900Kg/m3,而本方案提供的新型无机高导热复合填充材料,导热系数在常温下可以逼近0.8,400度高温测试质量损失只有10%,且容重低,可以和有机导热材料相当。
并且,在本实施例中,我们首先将硫酸镁倒入水中形成硫酸镁溶液,然后再加入氧化镁和石墨,充分混合,获得我们所需的新型无机高导热复合填充材料。
以上所述,仅是本发明的较佳实施例,并非对本发明做任何形式上的限制,凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化,均落入本发明的保护范围之内。
Claims (5)
1.一种新型无机耐高温高导热复合填充材料,其特征在于:所述材料包括石墨、氧化镁、硫酸镁和水,按重量份计,其中石墨的重量份数为10-50份,氧化镁的重量份数为20-50份,硫酸镁的重量份数为10-20份,水的重量份数为20份。
2.根据权利要求1所述的一种新型无机耐高温高导热复合填充材料,其特征在于:所述石墨的重量份数为20份,氧化镁的重量份数为40份,硫酸镁的重量份数为20份,水的重量份数为20份。
3.根据权利要求1所述的一种新型无机耐高温高导热复合填充材料,其特征在于:所述材料还包括改性剂,所述改性剂的重量份数为1份。
4.根据权利要求1所述的一种新型无机耐高温高导热复合填充材料,其特征在于:所述氧化镁为氧化镁晶须,粒径为200-400目。
5.制备权利要求1-4中任一项所述的一种新型无机耐高温高导热复合填充材料的方法,其特征在于:包括以下步骤:
步骤S1:将硫酸镁和水混合形成硫酸镁溶液,其中硫酸镁和水的重量份数比为1-2:2;
步骤S2:将步骤S1制得的硫酸镁溶液和氧化镁、石墨混合得到新型无机高导热复合填充材料,其中硫酸镁溶液、氧化镁和石墨的重量份数为2:2:1。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011024420.5A CN112126119A (zh) | 2020-09-25 | 2020-09-25 | 一种新型无机耐高温高导热复合填充材料 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011024420.5A CN112126119A (zh) | 2020-09-25 | 2020-09-25 | 一种新型无机耐高温高导热复合填充材料 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112126119A true CN112126119A (zh) | 2020-12-25 |
Family
ID=73840112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011024420.5A Pending CN112126119A (zh) | 2020-09-25 | 2020-09-25 | 一种新型无机耐高温高导热复合填充材料 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112126119A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114804811A (zh) * | 2022-05-27 | 2022-07-29 | 韩涛 | 一种无机导热封装材料及其制备方法和应用 |
CN114890769A (zh) * | 2022-05-27 | 2022-08-12 | 韩涛 | 一种自流平导热胶凝材料及其制备方法和应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2781843A1 (en) * | 2013-03-22 | 2014-09-24 | VKB Energy S.r.l. | Manufacture of modular flooring with an electrical heating system |
CN107117930A (zh) * | 2017-06-14 | 2017-09-01 | 合肥市旺友门窗有限公司 | 一种耐高温高强度防火门芯板材及其制备方法 |
CN107787433A (zh) * | 2015-06-16 | 2018-03-09 | 汉高股份有限及两合公司 | 整合在建筑材料中的印刷加热元件 |
CN109305756A (zh) * | 2018-09-18 | 2019-02-05 | 郭志锋 | 一种耐高温日用陶瓷釉料及其加工方法 |
-
2020
- 2020-09-25 CN CN202011024420.5A patent/CN112126119A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2781843A1 (en) * | 2013-03-22 | 2014-09-24 | VKB Energy S.r.l. | Manufacture of modular flooring with an electrical heating system |
CN107787433A (zh) * | 2015-06-16 | 2018-03-09 | 汉高股份有限及两合公司 | 整合在建筑材料中的印刷加热元件 |
CN107117930A (zh) * | 2017-06-14 | 2017-09-01 | 合肥市旺友门窗有限公司 | 一种耐高温高强度防火门芯板材及其制备方法 |
CN109305756A (zh) * | 2018-09-18 | 2019-02-05 | 郭志锋 | 一种耐高温日用陶瓷釉料及其加工方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114804811A (zh) * | 2022-05-27 | 2022-07-29 | 韩涛 | 一种无机导热封装材料及其制备方法和应用 |
CN114890769A (zh) * | 2022-05-27 | 2022-08-12 | 韩涛 | 一种自流平导热胶凝材料及其制备方法和应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100424041C (zh) | 高炉出铁口无水炮泥 | |
CN112126119A (zh) | 一种新型无机耐高温高导热复合填充材料 | |
US20090200512A1 (en) | Manufacture and Use of Engineered Carbide and Nitride Composites | |
CN110683761B (zh) | 一种用于特高压瓷绝缘子的釉料及其制作方法 | |
CN101570651A (zh) | 多晶硅铸锭炉的耐腐蚀涂层、耐高温保护层及其制备方法 | |
CN104829202A (zh) | 一种导电自流平砂浆的制备方法 | |
Yan et al. | Tailoring Highly Thermal Conductive Properties of Te/MoS2/Ag Heterostructure Nanocomposites Using a Bottom‐Up Approach | |
CN112111159A (zh) | 兼顾导电性与可陶瓷化高温硫化硅橡胶及其制备方法 | |
Bagci et al. | Synthesis and characterization of silicon carbide powders converted from metakaolin‐based geopolymer | |
Liu et al. | The influence of mesoporous SiO2‐graphene hybrid improved the flame retardancy of epoxy resins | |
CN103011870B (zh) | 一种镁橄榄石耐火原料及其制备方法 | |
Samuel et al. | Thermal conductivity of several geopolymer composites and discussion of their formulation | |
Li et al. | Preparation of SiC from acid‐leached coal gangue by carbothermal reduction | |
CN103242048A (zh) | 一种高炉炉缸维修用环保型碳质压入料 | |
Glazev et al. | Environmental technologies in the production of metallurgical silicon | |
JP2007197295A (ja) | 人工瓦粘土の製造方法 | |
CN103803883B (zh) | 碳化硅碳化硼空心陶瓷微珠制备油井固井水泥试块的方法 | |
Li et al. | Effects of aggregate/matrix‐phase ratio on the in‐situ synthesis of SiC whiskers and properties of reaction‐bonded SiC | |
CN101863622A (zh) | 一种掺杂纳米氧化物的红色焊料玻璃及其制备方法 | |
CN101367615B (zh) | 一种添加纳米氧化铝的封接玻璃及其制备方法 | |
CN107162559A (zh) | 一种隔热保温型的混泥土 | |
Wang et al. | Experimental investigations of polypropylene and poly (vinyl chloride) composites filled with plerospheres | |
CN113788692B (zh) | 一种抗结皮浇注料及其制备方法 | |
CN114436664B (zh) | 一种换热器用石墨管的制备方法 | |
Berktaş | Facile synthesis of graphite-and graphene-based hybrid additives by silanization and effects of these additives on the thermal conductivity of cementitious grouts used in shallow geothermal systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201225 |
|
RJ01 | Rejection of invention patent application after publication |