CN104449439A - High self-adhesive silicone rubber belt as well as preparation and application of high self-adhesive silicone rubber belt - Google Patents
High self-adhesive silicone rubber belt as well as preparation and application of high self-adhesive silicone rubber belt Download PDFInfo
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- CN104449439A CN104449439A CN201310444393.0A CN201310444393A CN104449439A CN 104449439 A CN104449439 A CN 104449439A CN 201310444393 A CN201310444393 A CN 201310444393A CN 104449439 A CN104449439 A CN 104449439A
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Abstract
The invention relates to a high self-adhesive silicone rubber belt as well as preparation and application of the high self-adhesive silicone rubber belt. The high self-adhesive silicone rubber belt is prepared through mixing and three-section vulcanization by taking 110-2 methyl vinyl silicone rubber as a base material and self-regulating poly-silicone boroxane as a tackifier. The preparation method comprises the following steps: preparing the poly-silicone boroxane tackifier by adopting ethyloxy silicone oil and boric acid according to a proportion of 100:(25-75) through reaction, mixing the silicone rubber, the poly-silicone boroxane tackifier, methyl triethoxysilane, dicumyl peroxide, white carbon black and inorganic crystal whisker according to proportion by adopting an open type rubber mixing machine, and respectively vulcanizing at 160 DEG C, 220 DEG C and 260 DEG C by adopting a press vulcanizer. The silicone rubber belt provided by the invention has ultrahigh self-adhesive strength, the self-adhesive strength reaches 17N/cm, and the silicone rubber belt has wide application prospect in fields of line protection, electronic insulation and the like.
Description
Technical field: the silicone rubber belt and the Synthesis and applications thereof that the present invention relates to a kind of high self-adhesion
Background technology:
Silicon rubber has excellent electrical insulation capability and has a wide range of applications in art of electrical insulation, in order to reach service requirements, needs preparation to have the silicone rubber belt of good self-adhesion.But silicon rubber molecular structure is nonpolar, itself does not have autohension completely.The autohension of silicon rubber can be realized by following two kinds of modes: reach by adopting silicone resin and controlling cross-linking density or adopt extraordinary tackifier that silicon rubber also can be made to reach the performance of self-adhesion.Boride produces self-adhesion.About the sixties, the tackifier on the basis that China scientific research personnel adopts are the inorganic or organic derivatives adopting extremely simple boric acid, boric anhydride, boric acid ester and boric acid.But because above-mentioned boride itself is unstable, the easy moisture absorption, that causes rubber unvulcanizate deposits instability, rubber unvulcanizate is depositing easy precipitation white flaky crystals thing in process, and after sulfuration, the self-adhesion of adhesive tape is little, and product easily bubbles, surperficial extra coarse, product autohension after depositing for some time weakens, and can not meet the demands.By summing up above deficiency, constantly studying through people, having occurred that moistureproofness is better, the good tackifier of consistency.But its self-adhesion intensity also can only reach 3.5N/cm, be difficult to meet service requirements under severe conditions.
Summary of the invention:
The object of the present invention is to provide a kind of silicone rubber belt and Synthesis and applications thereof of high self-adhesion, the present invention is for base-material with 110-2 type methyl vinyl silicone rubber, with homemade Polyborosiloxane for tackifier, be prepared from by mixing step up cure, concrete preparation process comprises the steps:
1) take 100 parts of oxyethyl group silicone oil, add in flask, add the boric acid of 25-70 part, be stirred at 60 DEG C-80 DEG C after boric acid dissolves and stop stirring, be warming up to 120-140 DEG C, steam ethanol, insulation 2-4 hour, obtained Polyborosiloxane tackifier.
2) open opening rubber mixing machine, setting preliminary roller and rear roll temperature, temperature range controls at 25 ~ 40 DEG C, and roll temperature difference in front and back is no more than 10 DEG C.Before and after setting, roller roll spacing 0-1mm, slowly adds 100 parts of 110-2 methyl vinyl silicone rubbers, and adds 2-8 part Polyborosiloxane tackifier by amount, and what increase roll spacing gradually arrives 1-3mm, repeatedly mixing 10-30 minute simultaneously.
3) 2-8 part Union carbide A-162 and 1-4 part dicumyl peroxide is taken, and dicumyl peroxide is put into Union carbide A-162 glass stick uniform stirring until dissolve completely, obtained dicumyl peroxide and Union carbide A-162 mixture.
4) add 10-30 part white carbon black, add the dicumyl peroxide and Union carbide A-162 mixture that mix simultaneously, within repeated multiple times mixing 10-30 minute, shut down bottom sheet.
5) silicon rubber is put into vulcanizing press and carry out three step sulfurations, at 160 DEG C, 220 DEG C, 260 DEG C difference sulfuration 1-5 minute.
Significance effect: silicone rubber belt prepared by the present invention has higher self-adhesion intensity, reach 17N/cm, and combines in square section together, soaks 48 hours without demixing phenomenon in water.
Accompanying drawing illustrates:
Fig. 1 silicon rubber self-adhesive tape sectional elevation
The different tackifier addition of Fig. 2 is to silicon rubber self-adhesive tape self-adhesion intensity
Embodiment:
Embodiment 1
1) take 100 parts of oxyethyl group silicone oil, add in flask, add the boric acid of 25 parts, be stirred at 60 DEG C after boric acid dissolves and stop stirring, be warming up to 120 DEG C, steam ethanol, be incubated 4 hours, obtained Polyborosiloxane tackifier.
2) open opening rubber mixing machine, setting preliminary roller and rear roll temperature, temperature range controls at 25 DEG C, and roll temperature difference in front and back is no more than 10 DEG C.Before and after setting, roller roll spacing 0mm, slowly adds 100 parts of 110-2 methyl vinyl silicone rubbers, and adds 2 parts of Polyborosiloxane tackifier by amount, and what increase roll spacing gradually arrives 1mm, mixing 10 minutes repeatedly simultaneously.
3) 2 parts of Union carbide A-162s and 1 part of dicumyl peroxide is taken, and dicumyl peroxide is put into Union carbide A-162 glass stick uniform stirring until dissolve completely, obtained dicumyl peroxide and Union carbide A-162 mixture.
4) add 10 parts of white carbon blacks, add the dicumyl peroxide and Union carbide A-162 mixture that mix simultaneously, within repeated multiple times mixing 10 minutes, shut down bottom sheet.
5) silicon rubber is put into vulcanizing press and carry out three step sulfurations, 160 DEG C, 220 DEG C, 260 DEG C difference sulfuration 1 minute.
Embodiment 2
1) take 100 parts of oxyethyl group silicone oil, add in flask, add the boric acid of 50 parts, be stirred at 70 DEG C after boric acid dissolves and stop stirring, be warming up to 130 DEG C, steam ethanol, be incubated 3 hours, obtained Polyborosiloxane tackifier.
2) open opening rubber mixing machine, setting preliminary roller and rear roll temperature, temperature range controls at 30 DEG C, and roll temperature difference in front and back is no more than 10 DEG C.Before and after setting, roller roll spacing 0.5mm, slowly adds 100 parts of 110-2 methyl vinyl silicone rubbers, and adds 6 parts of Polyborosiloxane tackifier by amount, and what increase roll spacing gradually arrives 2mm, mixing 20 minutes repeatedly simultaneously.
3) 6 parts of Union carbide A-162s and 2.5 parts of dicumyl peroxides are taken, and dicumyl peroxide is put into Union carbide A-162 glass stick uniform stirring until dissolve completely, obtained dicumyl peroxide and Union carbide A-162 mixture.
4) add 20 parts of white carbon blacks, add the dicumyl peroxide and Union carbide A-162 mixture that mix simultaneously, within repeated multiple times mixing 20 minutes, shut down bottom sheet.
5) silicon rubber is put into vulcanizing press and carry out three step sulfurations, 160 DEG C, 220 DEG C, 260 DEG C difference sulfuration 2 minutes.
Embodiment 3
1) take 100 parts of oxyethyl group silicone oil, add in flask, add the boric acid of 70 parts, be stirred at 80 DEG C after boric acid dissolves and stop stirring, be warming up to 120-140 DEG C, steam ethanol, be incubated 2 hours, obtained Polyborosiloxane tackifier.
2) open opening rubber mixing machine, setting preliminary roller and rear roll temperature, temperature range controls at 40 DEG C, and roll temperature difference in front and back is no more than 10 DEG C.Before and after setting, roller roll spacing 1mm, slowly adds 100 parts of 110-2 methyl vinyl silicone rubbers, and adds 8 parts of Polyborosiloxane tackifier by amount, and what increase roll spacing gradually arrives 3mm, mixing 30 minutes repeatedly simultaneously.
3) 8 parts of Union carbide A-162s and 4 parts of dicumyl peroxides are taken, and dicumyl peroxide is put into Union carbide A-162 glass stick uniform stirring until dissolve completely, obtained dicumyl peroxide and Union carbide A-162 mixture.
4) add 30 parts of white carbon blacks, add the dicumyl peroxide and Union carbide A-162 mixture that mix simultaneously, within repeated multiple times mixing 30 minutes, shut down bottom sheet.
5) silicon rubber is put into vulcanizing press and carry out three step sulfurations, 160 DEG C, 220 DEG C, 260 DEG C difference sulfuration 5 minutes.
Claims (4)
1. a silicone rubber belt for high self-adhesion, is characterized in that it is with 110-2 methyl vinyl silicone rubber, and with homemade Polyborosiloxane for tackifier, be prepared from by mixing and three sections of sulfurations, concrete preparation process comprises the steps:
1) open opening rubber mixing machine, setting preliminary roller and rear roll temperature, temperature range controls at 25 ~ 40 DEG C, and roll temperature difference in front and back is no more than 10 DEG C.Before and after setting, roller roll spacing 0-1mm, slowly adds 100 parts of 110-2 methyl vinyl silicone rubbers, and adds 2-8 part Polyborosiloxane tackifier by amount, and what increase roll spacing gradually arrives 1-3mm, repeatedly mixing 10-30 minute simultaneously.
2) 2-8 part Union carbide A-162 and 1-4 part dicumyl peroxide is taken, and dicumyl peroxide is put into Union carbide A-162 glass stick uniform stirring until dissolve completely, obtained dicumyl peroxide and Union carbide A-162 mixture.
3) add 10-30 part white carbon black, add the dicumyl peroxide and Union carbide A-162 mixture that mix simultaneously, within repeated multiple times mixing 10-30 minute, shut down bottom sheet.
4) silicon rubber is put into vulcanizing press and carry out three step sulfurations, at 160 DEG C, 220 DEG C, 260 DEG C difference sulfuration 1-5 minute.
2. silicone rubber belt according to claim 1, it is characterized in that the self-adhesion intensity with superelevation, reach 17N/cm, higher tearing toughness, reaches
3. Polyborosiloxane according to claim 1, it is characterized in that it is prepared by following process: take 100 parts of oxyethyl group silicone oil, add in flask, add the boric acid of 25-70 part, be stirred at 60 DEG C-80 DEG C after boric acid dissolves and stop stirring, be warming up to 120-140 DEG C, steam ethanol, insulation 2-4 hour.
4. high self-adhesive silicon rubber band according to claim 1, is characterized in that this product application is in the field such as insulation protection and electronic product insulation of transmitting line.
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| CN201310444393.0A CN104449439A (en) | 2013-09-17 | 2013-09-17 | High self-adhesive silicone rubber belt as well as preparation and application of high self-adhesive silicone rubber belt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105623175A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Enhanced-type wear-resistant composite plastic material and preparation method thereof |
| CN105733497A (en) * | 2016-04-22 | 2016-07-06 | 福建瑞森新材料股份有限公司 | Silicone rubber self-adhesive agent and preparation method thereof |
| CN107312496A (en) * | 2017-05-14 | 2017-11-03 | 杭州师范大学 | A kind of cementability add-on type liquid silicon rubber |
| CN112011309A (en) * | 2020-09-04 | 2020-12-01 | 忍嘉有机硅新材料(东莞)有限公司 | Self-adhesive liquid silicone rubber for bonding PC and PA and preparation method thereof |
| CN113980609A (en) * | 2021-12-13 | 2022-01-28 | 成都硅宝科技股份有限公司 | High-self-adhesion silicon rubber self-adhesive tape and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623175A (en) * | 2016-04-06 | 2016-06-01 | 苏州甫众塑胶有限公司 | Enhanced-type wear-resistant composite plastic material and preparation method thereof |
| CN105733497A (en) * | 2016-04-22 | 2016-07-06 | 福建瑞森新材料股份有限公司 | Silicone rubber self-adhesive agent and preparation method thereof |
| CN105733497B (en) * | 2016-04-22 | 2018-07-03 | 福建瑞森新材料股份有限公司 | A kind of silicon rubber self-adhesive and preparation method thereof |
| CN107312496A (en) * | 2017-05-14 | 2017-11-03 | 杭州师范大学 | A kind of cementability add-on type liquid silicon rubber |
| CN112011309A (en) * | 2020-09-04 | 2020-12-01 | 忍嘉有机硅新材料(东莞)有限公司 | Self-adhesive liquid silicone rubber for bonding PC and PA and preparation method thereof |
| CN113980609A (en) * | 2021-12-13 | 2022-01-28 | 成都硅宝科技股份有限公司 | High-self-adhesion silicon rubber self-adhesive tape and preparation method thereof |
| CN113980609B (en) * | 2021-12-13 | 2023-08-15 | 成都硅宝科技股份有限公司 | High-self-adhesion silicone rubber self-adhesive tape and preparation method thereof |
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