CN105038237A - Low-viscosity and high-thermal-conductivity silicone oil for power battery and preparation method for silicone oil - Google Patents
Low-viscosity and high-thermal-conductivity silicone oil for power battery and preparation method for silicone oil Download PDFInfo
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Abstract
The invention provides low-viscosity and high-thermal-conductivity silicone oil for a power battery. The silicone oil is prepared after phenyl methyl silicone oil, norbornane-substituted poly aryl ether ketone hydroquinone and vinyl-modified GW-944 are evenly mixed. The specific viscosity of the phenyl methyl silicone oil is used for meeting the needs of the viscosity, volatility, heat resistance and aging resistance of the low-viscosity and high-thermal-conductivity silicone oil in use, and meanwhile specific ionic liquid is added, so that the volatility of a system is further lowered while the thermal conductivity of the system is increased. Compared with existing products, the low-viscosity and high-thermal-conductivity silicone oil has lower viscosity, lower volatility and high thermal conductivity.
Description
Technical field
The invention provides a kind of power cell low viscosity, high thermal conductive silicon oil, on the basis of premium properties keeping original silicone oil, increased substantially heat-resisting, the heat conductivility of silicone oil, belonged to cooling fluid preparing technical field.
Background technology
Silicone oil is that a class has various different viscosity, nontoxic, odorless, corrosion-free, nonflammable polyorganosiloxane fluid oily matter.Silicone oil has many properties, as temperature glue that coefficient is little, high-low temperature resistant, anti-oxidant, flash-point is high, volatility is little, good insulating, surface tension are little, corrosion-free to metal, nontoxic.Because these characteristics make silicone oil in industrial and agricultural production all departments, national defense industry, the department such as scientific research and health care, all obtained and applied extremely widely.The aspects such as it is widely used in electric insulation, the demoulding, froth breaking, damping, shockproof, roll extrusion, dust-proof, waterproof, height are moistening.As heat-conducting medium, methyl phenyl silicone oil purposes is relatively extensive, but the high often viscosity ratio of general methyl phenyl silicone oil temperature resistant grade is comparatively large, and the lower methyl phenyl silicone oil temperature classification of viscosity ratio cannot meet service requirements.As heat-conducting medium, methyl phenyl silicone oil purposes is relatively extensive, but the high often viscosity ratio of general methyl phenyl silicone oil temperature resistant grade is comparatively large, and the lower methyl phenyl silicone oil temperature classification of viscosity ratio cannot meet service requirements.
Summary of the invention
The invention provides a kind of power cell low viscosity, high thermal conductive silicon oil, the while of having more low viscous, also there is higher thermal conductivity.
Invention further provides the preparation method of a kind of power cell low viscosity, high thermal conductive silicon oil, be applicable to suitability for industrialized production.
The low volatilization of a kind of power cell of the present invention, low viscosity heat conduction silicone oil, by following raw materials by weight portion than making:
Polyaryletherketone diphenol 0.1-5 part that phenyl methyl silicone oil (molecular weight is 2000-3000) 100 parts, norbornane replace: vinyl modified GW-9441-5 part.
Wherein, the polyaryletherketone diphenol that described norbornane replaces has following general formula:
Wherein n=10-15;
Described vinyl modified GW-944 has having structure:
The preparation method of vinyl modified GW-944 is as follows:
By GW-944100 gram, tert-Butyl dicarbonate (BOC) 50 grams, 10 grams, salt of wormwood and methylene dichloride 300 milliliters, use N
2metathesis reactor air 3 times, stirs 4h, then adds allyl bromide 98 15 grams, stirs 10h; Add dilute hydrochloric acid adjust ph to 5.0, decompression pumps solvent, then uses extracted with diethyl ether, anhydrous Na
2sO
4drying, obtains vinyl modified GW-944 after product post layer purification (n-hexane/ethyl acetate).
The preparation method of a kind of power cell low viscosity of the present invention, high thermal conductive silicon oil, comprises the following steps:
After the polyaryletherketone diphenol that norbornane replaces by ratio is mixed with phenyl methyl silicone oil, add vinyl modified GW-944, the silicone oil of low viscosity height heat conduction after mixing, can be obtained.
positively effect of the present invention is:utilize the particular viscosity that phenyl methyl silicone oil has, to meet viscosity, volatility and heat-resisting ageing-resisting performance that the present invention uses, add specific ionic liquid simultaneously, while raising system thermal conductivity, the volatile performance of further reduction system.Compared with currently available products, the while of having more low viscous, also there is lower volatility and high thermal conductivity.
Embodiment
To be illustrated further description the present invention by following examples, and do not limit the present invention in any way, under the prerequisite not deviating from technical solution of the present invention, any change that those of ordinary skill in the art made for the present invention easily realize or change all will fall within right of the present invention.
embodiment 1
By GW-944100 gram, tert-Butyl dicarbonate (BOC) 50 grams, 10 grams, salt of wormwood and methylene dichloride 300 milliliters mixing, use N
2metathesis reactor air 3 times, stirs 4h, then adds allyl bromide 98 15 grams, stirs 10h; Add dilute hydrochloric acid adjust ph to 5.0, decompression pumps solvent, then uses extracted with diethyl ether, anhydrous Na
2sO
4drying, obtains vinyl modified GW-944 after product post layer purification (n-hexane/ethyl acetate).
embodiment 2
By 0.1kg phenol antioxidant: norbornane replace polyaryletherketone diphenol be after 2000 phenyl methyl silicone oils mix with 100kg molecular weight, add embodiment 1 preparation 1kg vinyl modified GW-944 mix after.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 553.1 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 15.27 |
| Flash-point (opening) | ≥300 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.2 |
| Thermal conductivity (W/m.k) | ≥1.8 |
embodiment 3
The polyaryletherketone diphenol that the phenol antioxidant norbornane that obtained by 2kg replaces and 100kg molecular weight are add after 3kg vinyl modified GW-944 prepared by embodiment 1 mixes after 3000 phenyl methyl silicone oils mix.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 555.1 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 18.27 |
| Flash-point (opening) | ≥300 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.2 |
| Thermal conductivity (W/m.k) | ≥2.2 |
embodiment 4
The polyaryletherketone diphenol that the phenol antioxidant norbornane that obtained by 3kg replaces and 100kg molecular weight are add after 4kg vinyl modified GW-944 prepared by embodiment 1 mixes after 2000 phenyl methyl silicone oils mix.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 5583.1 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 20.27 |
| Flash-point (opening) | ≥310 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.2 |
| Thermal conductivity (W/m.k) | ≥2.3 |
embodiment 5
The polyaryletherketone diphenol that the phenol antioxidant norbornane that obtained by 4kg replaces and 100kg molecular weight are add after 4kg vinyl modified GW-944 prepared by embodiment 1 mixes after 3000 phenyl methyl silicone oils mix.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 560.1 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 22.3 |
| Flash-point (opening) | ≥310 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.2 |
| Thermal conductivity (W/m.k) | ≥2.3 |
embodiment 6
Phenol antioxidant by obtained for 4kg: the polyaryletherketone diphenol that norbornane replaces and 100kg molecular weight are add after 4kg vinyl modified GW-944 prepared by embodiment 1 mixes after 2000 phenyl methyl silicone oils mix.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 561 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 25.1 |
| Flash-point (opening) | ≥300 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.2 |
| Thermal conductivity (W/m.k) | ≥2.4 |
embodiment 7
Phenol antioxidant by obtained for 5kg: the polyaryletherketone diphenol that norbornane replaces and 100kg molecular weight are add after 5kg vinyl modified GW-944 prepared by embodiment 1 mixes after 3000 phenyl methyl silicone oils mix.Products therefrom test result is as follows:
| Test event | Test result |
| Outward appearance | Colourless liquid |
| 25 DEG C of kinematic viscosity (mm 2s -1） | 565.1 |
| 180 DEG C of kinematic viscosity (mm 2s -1） | 25.27 |
| Flash-point (opening) | ≥300 |
| Refractive index (25 DEG C) | 1.46-1.48 |
| Zero pour (DEG C) | ≤50 |
| Volatility (250 DEG C, 24h, %) | ≤0.3 |
| Thermal conductivity (W/m.k) | ≥2.5 |
Claims (2)
1. the low volatilization of power cell, a low viscosity heat conduction silicone oil, by following raw materials by weight portion than making:
Polyaryletherketone diphenol 0.1-5 part that phenyl methyl silicone oil (molecular weight is 2000-3000) 100 parts, norbornane replace: vinyl modified GW-9441-5 part;
The preparation method of vinyl modified GW-944 is as follows:
By GW-944100 gram, tert-Butyl dicarbonate (BOC) 50 grams, 10 grams, salt of wormwood and methylene dichloride 300 milliliters, use N
2metathesis reactor air 3 times, stirs 4h, then adds allyl bromide 98 15 grams, stirs 10h; Add dilute hydrochloric acid adjust ph to 5.0, decompression pumps solvent, then uses extracted with diethyl ether, anhydrous Na
2sO
4drying, obtains vinyl modified GW-944 after product post layer purification (n-hexane/ethyl acetate).
2. the preparation method of a kind of power cell low viscosity according to claim 1, high thermal conductive silicon oil, comprises the following steps:
After the polyaryletherketone diphenol that norbornane replaces by ratio is mixed with phenyl methyl silicone oil, add vinyl modified GW-944, the silicone oil of low viscosity height heat conduction after mixing, can be obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566483A (en) * | 2016-11-15 | 2017-04-19 | 安徽超际环保科技有限公司 | Waterless liquid coolant for engine under extreme conditions and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312331A (en) * | 2001-02-23 | 2001-09-12 | 刘粤荣 | Organic high molecular composite for accumulator and its preparation method |
| CN101570591A (en) * | 2009-04-03 | 2009-11-04 | 河北工业大学 | Polyether-ether-ketone polymer and preparation method thereof |
| CN102827148A (en) * | 2012-09-04 | 2012-12-19 | 中国科学院长春应用化学研究所 | Hindered amine compound and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312331A (en) * | 2001-02-23 | 2001-09-12 | 刘粤荣 | Organic high molecular composite for accumulator and its preparation method |
| CN101570591A (en) * | 2009-04-03 | 2009-11-04 | 河北工业大学 | Polyether-ether-ketone polymer and preparation method thereof |
| CN102827148A (en) * | 2012-09-04 | 2012-12-19 | 中国科学院长春应用化学研究所 | Hindered amine compound and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566483A (en) * | 2016-11-15 | 2017-04-19 | 安徽超际环保科技有限公司 | Waterless liquid coolant for engine under extreme conditions and preparation method thereof |
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