CN102732229A - Paste heat-conductive silicone grease and preparation method - Google Patents
Paste heat-conductive silicone grease and preparation method Download PDFInfo
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- CN102732229A CN102732229A CN2012102448992A CN201210244899A CN102732229A CN 102732229 A CN102732229 A CN 102732229A CN 2012102448992 A CN2012102448992 A CN 2012102448992A CN 201210244899 A CN201210244899 A CN 201210244899A CN 102732229 A CN102732229 A CN 102732229A
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Abstract
The invention discloses a paste heat-conductive silicone grease and a preparation method of the paste heat-conductive silicone grease. The preparation method comprises the following steps: adding 100 parts by weight of methyl silicone oil, 200-1000 parts by weight of heat-conductive filler and 10-100 parts by weight of treating agent in a vacuum kneader or a power mixer, dehydrating and jointly mixing the above materials for 30-200 minutes on the conditions that the temperature ranges from 100 to 150 DEG C and the vacuum degree ranges from -0.06 to -0.099 MPa to obtain the paste heat-conductive silicone grease. By performing high temperature vacuum treatment on the surface of heat-conductive powder, the compatibility of the oil and the powder is improved, so that the product can keep a paste grease state for a long time at the temperature of -50 to 230 DEG C during the use process, and does not dry, harden and cause the separation phenomenon of the oil and the powder, so that the paste heat-conductive silicone grease prepared by the invention has excellent electrical insulating property and thermal conductivity.
Description
Technical field
The present invention relates to a kind of lotion heat-conducting silicone grease and preparation method thereof.
Technical background
Heat-conducting silicone grease can extensively be coated on heating element and the contact surface of heat radiation between the facility in various electronic products and the electrical equipment, and heating element has power tube, silicon controlled rectifier, electric heating heap etc., and the heat radiation facility has radiator element, heat sink strip, housing etc.Heat-conducting silicone grease plays the heat catalysis effect and has protection against the tide, dustproof, protection against corrosion and performance such as shockproof.Be applicable to the surface-coated or the whole embedding of various microwave devices such as microwave communication, microwave transport equipment, microwave power source special and voltage stabilized source, these type of silicon materials provide splendid heat-conducting effect to the electronic component that produces heat.As: transistor, CPU assembling, thermistor, TP, automotive electronics component, automobile refrigerator, power module and stamping machine are first-class.
Summary of the invention
One of the object of the invention be solve heat-conducting silicone grease in use occur easily dry, harden, oil-bound distemper separate easily phenomenon and provide a kind of in use do not occur dry, harden and the oil-bound distemper separation phenomenon, and have the excellent electrical insulating property and the lotion heat-conducting silicone grease of thermal conductivity.
Two of the object of the invention provides the preparation method of above-mentioned lotion heat-conducting silicone grease.
The present invention adopts following technical scheme to achieve these goals:
A kind of lotion heat-conducting silicone grease, mixed by weight and made by following prescription:
Methyl-silicone oil 100
Heat conductive filler 200~1000
Treatment agent 10~100.
A kind of lotion heat-conducting silicone grease, formula optimization by ratio of weight and the number of copies for example down:
Methyl-silicone oil 100
Heat conductive filler 400~800
Treatment agent 20~80.
A kind of lotion heat-conducting silicone grease, formula optimization by ratio of weight and the number of copies for example down:
Methyl-silicone oil 100
Heat conductive filler 600
Treatment agent 50.
The viscosity of above-mentioned methyl-silicone oil when temperature is 25 ℃ is 100mPas~10000 mPas.
Above-mentioned heat conductive filler is one or more in aluminium sesquioxide, aluminium nitride AlN, zinc oxide and the Natural manganese dioxide.
Above-mentioned treatment agent is one or more in octamethylcyclotetrasiloxane, hexamethyldisilazane and the silazane.
The preparation method of above-mentioned a kind of lotion heat-conducting silicone grease is characterized in that having the following steps:
100 weight part methyl-silicone oils, 200~1000 weight part heat conductive fillers and 10~100 parts of treatment agents are added in vacuum kneader or the power mixer; 100~150 ℃ of temperature and-0.06~-0.099MPa vacuum tightness situation under, the dehydration blend can obtain the lotion heat-conducting silicone grease in 30~200 minutes.
Beneficial effect of the present invention:
Because the present invention is through conductive powder is carried out surperficial high temperature and vacuum-treat, improve the consistency of oil and powder, make product in use under-50~230 ℃ temperature, can keep cream smectic attitude for a long time, do not occur dry, harden and the oil-bound distemper separation phenomenon.Thereby make the prepared lotion heat-conducting silicone grease of the present invention have excellent electrical insulating property and thermal conductivity.
Embodiment
Table 1
Embodiment 1
1 kg methyl-silicone oil, 2 kg aluminium sesquioxides and 0.1 kg octamethylcyclotetrasiloxane are added in the vacuum kneader, and under 100 ℃ of temperature and-0.06MPa vacuum tightness situation, the dehydration blend can obtain the lotion heat-conducting silicone grease in 30 minutes.
Embodiment 2
1 kg methyl-silicone oil, 4 kg aluminium nitride AlN and 0.2 kg hexamethyldisilazane are added in the power mixer, and under 120 ℃ of temperature and-0.07MPa vacuum tightness situation, the dehydration blend can obtain the lotion heat-conducting silicone grease in 50 minutes.
Embodiment 3
The mixture of 1 kg methyl-silicone oil, 6 kg aluminium sesquioxides and aluminium nitride AlN and the mixture of 0.5 kg octamethylcyclotetrasiloxane and hexamethyldisilazane are added in the vacuum kneader; Under 130 ℃ of temperature and-0.08MPa vacuum tightness situation, the dehydration blend can obtain the lotion heat-conducting silicone grease in 60 minutes.
Embodiment 4
1 kg methyl-silicone oil, 8 kg zinc oxide and 0.8kg silazane are added in the power mixer, and under 140 ℃ of temperature and-0.09MPa vacuum tightness situation, the dehydration blend can obtain the lotion heat-conducting silicone grease in 80 minutes.
Embodiment 5
The mixture of 1 kg methyl-silicone oil, 10 kg Natural manganese dioxide and 1 kg hexamethyldisilazane and silazane is added in the vacuum kneader, and under 150 ℃ of temperature and-0.099MPa vacuum tightness situation, the dehydration blend can obtain the lotion heat-conducting silicone grease in 120 minutes.
According to above-mentioned principle, the present invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications more of the present invention and change.In addition, although used some specific terms in this specification sheets, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (7)
1. lotion heat-conducting silicone grease is characterized in that: mixed by weight and made by following prescription:
Methyl-silicone oil 100
Heat conductive filler 200~1000
Treatment agent 10~100.
2. a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that: formula optimization by ratio of weight and the number of copies for example down:
Methyl-silicone oil 100
Heat conductive filler 400~800
Treatment agent 20~80.
3. a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that: formula optimization by ratio of weight and the number of copies for example down:
Methyl-silicone oil 100
Heat conductive filler 600
Treatment agent 50.
4. a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that: the viscosity of described methyl-silicone oil when temperature is 25 ℃ is 100mPas~10000 mPas.
5. a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that: described heat conductive filler is one or more in aluminium sesquioxide, aluminium nitride AlN, zinc oxide and the Natural manganese dioxide.
6. a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that: described treatment agent is one or more in octamethylcyclotetrasiloxane, hexamethyldisilazane and the silazane.
7. the preparation method of a kind of lotion heat-conducting silicone grease according to claim 1 is characterized in that having the following steps:
100 weight part methyl-silicone oils, 200~1000 weight part heat conductive fillers and 10~100 parts of treatment agents are added in vacuum kneader or the power mixer; 100~150 ℃ of temperature and-0.06~-0.099MPa vacuum tightness situation under, the dehydration blend can obtain the lotion heat-conducting silicone grease in 30~200 minutes.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102924924A (en) * | 2012-11-13 | 2013-02-13 | 东莞兆舜有机硅新材料科技有限公司 | Paste heat-conductive silicone grease and preparation method thereof |
CN103421325A (en) * | 2013-08-01 | 2013-12-04 | 广东信翼新材料股份有限公司 | High thermal-conductive silicone grease material |
CN104530714A (en) * | 2014-12-16 | 2015-04-22 | 惠州力王佐信科技有限公司 | Heat-conducting silicone grease composition |
CN105111740A (en) * | 2015-08-07 | 2015-12-02 | 苏州晶雷光电照明科技有限公司 | Thermal silicone grease used for high-power light emitting diode |
CN108949114A (en) * | 2018-07-23 | 2018-12-07 | 湖南宁乡吉唯信金属粉体有限公司 | A kind of powder stuffing preparation method for heat conductive insulating interface |
CN110306354A (en) * | 2019-05-24 | 2019-10-08 | 蔡铭凯 | A kind of preparation method of the stretchable strain transducer of high heat conductance |
CN110669478A (en) * | 2019-09-25 | 2020-01-10 | 无锡易佳美电子科技有限公司 | Preparation method of high-reliability heat-conducting silicone grease |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101294067A (en) * | 2008-06-20 | 2008-10-29 | 清华大学 | Heat conductive silicone grease composition |
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2012
- 2012-07-16 CN CN2012102448992A patent/CN102732229A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101294067A (en) * | 2008-06-20 | 2008-10-29 | 清华大学 | Heat conductive silicone grease composition |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102924924A (en) * | 2012-11-13 | 2013-02-13 | 东莞兆舜有机硅新材料科技有限公司 | Paste heat-conductive silicone grease and preparation method thereof |
CN103421325A (en) * | 2013-08-01 | 2013-12-04 | 广东信翼新材料股份有限公司 | High thermal-conductive silicone grease material |
CN104530714A (en) * | 2014-12-16 | 2015-04-22 | 惠州力王佐信科技有限公司 | Heat-conducting silicone grease composition |
CN105111740A (en) * | 2015-08-07 | 2015-12-02 | 苏州晶雷光电照明科技有限公司 | Thermal silicone grease used for high-power light emitting diode |
CN108949114A (en) * | 2018-07-23 | 2018-12-07 | 湖南宁乡吉唯信金属粉体有限公司 | A kind of powder stuffing preparation method for heat conductive insulating interface |
CN110306354A (en) * | 2019-05-24 | 2019-10-08 | 蔡铭凯 | A kind of preparation method of the stretchable strain transducer of high heat conductance |
CN110669478A (en) * | 2019-09-25 | 2020-01-10 | 无锡易佳美电子科技有限公司 | Preparation method of high-reliability heat-conducting silicone grease |
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Application publication date: 20121017 |