CN105778103A - 一种乙烯基氟硅树脂及其制备方法 - Google Patents
一种乙烯基氟硅树脂及其制备方法 Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000011347 resin Substances 0.000 title abstract description 15
- 229920005989 resin Polymers 0.000 title abstract description 15
- VZFHJVQUHRRTII-UHFFFAOYSA-N [Si].C(=C)F Chemical compound [Si].C(=C)F VZFHJVQUHRRTII-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 9
- 230000007062 hydrolysis Effects 0.000 claims abstract description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 6
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 6
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 claims abstract description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 28
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 238000006068 polycondensation reaction Methods 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 8
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- 150000008044 alkali metal hydroxides Chemical group 0.000 claims description 4
- WTQAKAPKTROVFY-UHFFFAOYSA-N C[SiH]1O[Si](O[Si](O1)(CCC)F)(F)F Chemical compound C[SiH]1O[Si](O[Si](O1)(CCC)F)(F)F WTQAKAPKTROVFY-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- MCAPDUSPBSEQQO-UHFFFAOYSA-N O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1.CC=C Chemical compound O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1.CC=C MCAPDUSPBSEQQO-UHFFFAOYSA-N 0.000 claims description 2
- 229910004674 SiO0.5 Inorganic materials 0.000 claims description 2
- 229910020381 SiO1.5 Inorganic materials 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- YLJJAVFOBDSYAN-UHFFFAOYSA-N dichloro-ethenyl-methylsilane Chemical compound C[Si](Cl)(Cl)C=C YLJJAVFOBDSYAN-UHFFFAOYSA-N 0.000 claims description 2
- OHABWQNEJUUFAV-UHFFFAOYSA-N dichloro-methyl-(3,3,3-trifluoropropyl)silane Chemical compound C[Si](Cl)(Cl)CCC(F)(F)F OHABWQNEJUUFAV-UHFFFAOYSA-N 0.000 claims description 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 claims description 2
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- MBGQQKKTDDNCSG-UHFFFAOYSA-N ethenyl-diethoxy-methylsilane Chemical compound CCO[Si](C)(C=C)OCC MBGQQKKTDDNCSG-UHFFFAOYSA-N 0.000 claims description 2
- GFTRQZRJGBJAKX-UHFFFAOYSA-N ethoxy-methyl-propyl-(2,2,2-trifluoroethoxy)silane Chemical compound FC(CO[Si](OCC)(C)CCC)(F)F GFTRQZRJGBJAKX-UHFFFAOYSA-N 0.000 claims description 2
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims description 2
- 229940073561 hexamethyldisiloxane Drugs 0.000 claims description 2
- 238000002454 metastable transfer emission spectrometry Methods 0.000 claims description 2
- GOWYWDDPOBCVFH-UHFFFAOYSA-N methoxy-methyl-propyl-(trifluoromethoxy)silane Chemical compound FC(O[Si](OC)(C)CCC)(F)F GOWYWDDPOBCVFH-UHFFFAOYSA-N 0.000 claims description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- WEUBQNJHVBMUMD-UHFFFAOYSA-N trichloro(3,3,3-trifluoropropyl)silane Chemical compound FC(F)(F)CC[Si](Cl)(Cl)Cl WEUBQNJHVBMUMD-UHFFFAOYSA-N 0.000 claims description 2
- ZLGWXNBXAXOQBG-UHFFFAOYSA-N triethoxy(3,3,3-trifluoropropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)F ZLGWXNBXAXOQBG-UHFFFAOYSA-N 0.000 claims description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 2
- JLGNHOJUQFHYEZ-UHFFFAOYSA-N trimethoxy(3,3,3-trifluoropropyl)silane Chemical compound CO[Si](OC)(OC)CCC(F)(F)F JLGNHOJUQFHYEZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 abstract description 10
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 8
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004807 desolvation Methods 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
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- 239000004811 fluoropolymer Substances 0.000 description 2
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- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 description 2
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
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- 229910000077 silane Inorganic materials 0.000 description 2
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- DIFAZFWOOGJARJ-UHFFFAOYSA-N FC(F)(F)C(C)O[Si](OCC)(OCC)CCC Chemical compound FC(F)(F)C(C)O[Si](OCC)(OCC)CCC DIFAZFWOOGJARJ-UHFFFAOYSA-N 0.000 description 1
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical compound [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
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- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium;hydroxide;hydrate Chemical compound [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- NCWQJOGVLLNWEO-UHFFFAOYSA-N methylsilicon Chemical compound [Si]C NCWQJOGVLLNWEO-UHFFFAOYSA-N 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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Abstract
本发明涉及一种乙烯基氟硅树脂及其制备方法,包括M单元、D单元和T单元,具体结构式为:(Me3SiO0.5)a1(Me2RSiO0.5)a2(MeRfSiO)b1(MeRSiO)b2(Me2SiO)b3(RfSiO1.5)c1(MeSiO1.5)c2(RSiO1.5)c3,其中R为乙烯基,Rf为三氟丙基,有机氟硅单体经水解、水洗、干燥、缩合、中和、脱低沸制得。本发明制备的氟硅树脂含有乙烯基不饱和基团,可交联固化,并具有优异的防水、防油、耐热、耐沾污等性能,可广泛应用于军工设备的外层防护、输油管道外层的防水防腐、厨卫用具、挡风玻璃、木材和建筑物等生产生活方面。
Description
技术领域
本发明属于有机硅高分子技术领域,特别涉及一种乙烯基氟硅树脂及其制备方法。
背景技术
氟硅树脂不但具有普通甲基硅树脂优异的耐氧化、电绝缘、耐候、憎水、阻燃、耐盐雾等特性,而且由于氟烷基的引入,赋予其特殊的耐溶剂、耐燃油性能,因此可满足现代涂料及表面处理领域日益增长的需求,广泛应用于军工设备的外层防护、输油管道外层的防水防腐、厨卫用具、挡风玻璃、木材和建筑物等生产生活方面。
目前,专利中所涉及到的氟硅树脂的制备方法可大致分为以下三类:(1)采用化学接枝法将含氟聚合物或者含氟单体接到有机硅氧烷主链中,如CN102643434A等;(2)含氟聚合物或含氟单体与烷氧基硅烷的共水解法,如CN101775144A等;(3)氟树脂与硅树脂的催化缩合法,如CN102924734A等,以上氟硅树脂的制备方法一般会涉及到特殊结构含氟单体或者特殊的制备过程。
发明内容
本发明的目的在于克服上述不足,提供一种乙烯基氟硅树脂及其制备方法,采用普通硅树脂的合成步骤:如水解、水洗、缩聚、脱溶剂合成乙烯基氟硅树脂,避免特殊结构含氟单体的使用以及繁琐的制备过程(现有技术的氟硅树脂制备过程中普遍以硅树脂、氟碳单体为原料进行缩聚而得)。研究中发现;氟硅树脂的性能与有机基团R的种类密切相关,当有机基为-CH=CH2时,可改善硅树脂的固化性能并赋予偶联性,赋予氟硅树脂热稳定性、憎水性、脱模性、耐电弧性、耐燃油性能;当有机基为长链烷基时,可提高硅树脂的憎水性。因此,本发明中“含氟有机硅单体的使用”使氟硅树脂的合成可根据不同的固化性能而设计不同的分子结构,且具有较优的耐氧化、电绝缘、耐候、憎水、阻燃、耐盐雾等特性和特殊的耐溶剂、耐燃油性能。
为实现上述目的,本发明采用如下技术手段:
一种乙烯基氟硅树脂,其结构式为:
(Me3SiO0.5)a1(Me2RSiO0.5)a2(MeRfSiO)b1(MeRSiO)b2(Me2SiO)b3(RfSiO1.5)c1(MeSiO1.5)c2(RSiO1.5)c3;
其中,a1、a2、b1、b2、b3、c1、c2、c3为大于0的自然数,R为乙烯基,Rf为三氟丙基。
优选的,所述乙烯基氟硅树脂的R/Si比为1.0~2.0,此时,树脂的耐燃油性能最好。
优选的,所述乙烯基氟硅树脂中乙烯基的摩尔含量≤33%。
本发明还提供了一种乙烯基氟硅树脂的制备方法,以M、D、T单体为原料,在催化剂存在条件下经水解、缩聚和聚合反应后,制得乙烯基氟硅树脂;
其中,所述M单体为六甲基二硅氧烷、四甲基二乙烯基二硅氧烷或二者的组合;
所述D单体为甲基三氟丙基环三硅氧烷、甲基三氟丙基二氯硅烷、甲基三氟丙基二甲氧基硅烷、甲基三氟丙基二乙氧基硅烷、甲基乙烯基环四硅氧烷、甲基乙烯基二氯硅烷、甲基乙烯基二甲氧基硅氧、甲基乙烯基二乙氧基硅烷、八甲基环四硅氧烷、二甲基二氯硅烷、二甲基二甲氧基硅烷或二甲基二乙氧基硅烷中的至少一种;
所述T单体为三氟丙基三氯硅烷、三氟丙基三甲氧基硅烷、三氟丙基三乙氧基硅烷、甲基三甲氧基硅烷、甲基三乙氧基硅烷、乙烯基三甲氧基硅烷或乙烯基三乙氧基硅烷中的至少一种。
优选的,所述水解反应中,催化剂为浓盐酸与三氟甲磺酸的混合物。
更优选的,所述浓盐酸与三氟甲磺酸的混合物中,浓盐酸占反应物的3~10%,三氟甲磺酸占反应物的0.1%~1.0%。
优选的,所述缩聚反应中,缩合温度为80~120℃
优选的,所述缩聚反应中,催化剂为碱金属氢氧化物。
更优选的,所述碱金属氢氧化物为氢氧化锂、氢氧化钠或氢氧化钾中的至少一种。
更优选的,所述碱金属氢氧化物用量占反应物的0.1%~1.0%。
优选的,所述聚合反应的条件为于120~180℃、减压条件下,脱低沸0.5~4h。
更优选的,所述减压条件为133~1330Pa。
优选的,所述缩聚反应后,加入弱酸中和反应体系中残留的碱。
更优选的,所述弱酸的用量占反应物的0.1%~1.0%。
本发明还提供了一种优选的乙烯基氟硅树脂制备方法,包括:
(1)水解
M、D、T单体混合均匀,室温下逐滴加入含溶剂、H2O以及催化剂的反应瓶中,搅拌,滴加完毕后,升温至60~120℃,回流反应2~10h,静置,分层;
(2)水洗、干燥
水解液用蒸馏水洗涤至pH=6~7,静置,无水氯化钙或硫酸镁干燥8~24h;
(3)缩合
水洗液脱除溶剂,升温至80~120℃,催化缩合,反应4~8h;
(4)中和
缩合液加入与步骤(3)催化剂等摩尔的中和剂进行中和;
(5)脱低沸
中和液升温至120~180℃,减压,脱低沸0.5~4h,得乙烯基氟硅树脂。
本发明所述的乙烯基氟硅树脂在现代涂料及表面处理领域,如军工设备的外层防护、输油管道外层的防水防腐、厨卫用具、挡风玻璃、木材和建筑物等的应用。
本发明的有益效果
(1)本发明采用普通硅树脂的合成步骤:如水解、水洗、缩聚、脱溶剂合成乙烯基氟硅树脂,避免特殊结构含氟单体的使用以及繁琐的制备过程。另外,本发明中含氟有机硅单体的使用使得氟硅树脂的合成可根据不同的固化性能而设计不同的分子结构。
(2)本发明制备方法简单、实用性强、易于推广。
附图说明
图1乙烯基氟硅树脂的1HNMR图;
图2乙烯基氟硅树脂的29SiNMR图。
具体实施方式
以下通过实施例对本发明特征及其它相关特征作进一步详细说明,以便于同行业技术人员的理解:
实施例1
四甲基二乙烯基二硅氧烷415g、甲基三氟丙基环三硅氧烷780g、甲基三氟丙基三乙氧基硅烷1280g混合均匀,室温下逐滴加入含溶剂5000g、盐酸175g、三氟甲磺酸25g、H2O270g的水解反应釜中,搅拌,滴加完毕后,升温至80℃,回流反应4h,静置,分层,水解液蒸馏水洗涤至pH=6~7,静置,无水氯化钙干燥12h后脱除溶剂,并加入氢氧化钾5.0g在80℃缩合4h,冷至室温,加入5.5g冰醋酸中和,过滤,升温至150℃,133~1330Pa下脱除溶剂及低沸物,得M/D/T=1/1/1的乙烯基氟硅树脂,1HNMR与29SiNMR表征产物分子结构。
实施例2
重复实施例1所述的步骤,只是M/D/T=1/1/2,1HNMR与29SiNMR表征产物分子结构。
实施例3
重复实施例1所述的步骤,只是M/D/T=1/1/3,1HNMR与29SiNMR表征产物分子结构。
实施例4
重复实施例1所述的步骤,只是M/D/T=1/1/4,1HNMR与29SiNMR表征产物分子结构。
实施例5
重复实施例1所述的步骤,只是M/D/T=1/1/5,1HNMR与29SiNMR表征产物分子结构。
对比例1
重复实施例1所述的步骤,只是D为甲基三氟丙基二氯硅烷,1HNMR与29SiNMR表征产物分子结构。
对比例2
重复实施例1所述的步骤,只是T为甲基三氟丙基三甲氧基硅烷,1HNMR与29SiNMR表征产物分子结构。
最后应该说明的是,以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。上述虽然结合附图对本发明的具体实施方式进行了描述,但并非对本发明保护范围的限制,所属领域技术人员应该明白,在本发明的技术方案的基础上,本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。
Claims (10)
1.一种乙烯基氟硅树脂,其特征在于,其结构式为:
(Me3SiO0.5)a1(Me2RSiO0.5)a2(MeRfSiO)b1(MeRSiO)b2(Me2SiO)b3(RfSiO1.5)c1(MeSiO1.5)c2(RSiO1.5)c3;
其中,a1、a2、b1、b2、b3、c1、c2、c3为大于0的自然数,R为乙烯基,Rf为三氟丙基。
2.如权利要求1所述的乙烯基氟硅树脂,其特征在于,所述乙烯基氟硅树脂的R/Si比为1.0~2.0。
3.如权利要求1所述的乙烯基氟硅树脂,其特征在于,所述乙烯基氟硅树脂中乙烯基的摩尔含量≤33%。
4.一种乙烯基氟硅树脂的制备方法,其特征在于,以M、D、T单体为原料,在催化剂存在条件下经水解、缩聚和聚合反应后,制得乙烯基氟硅树脂;
其中,所述M单体为六甲基二硅氧烷、四甲基二乙烯基二硅氧烷或二者的组合;
所述D单体为甲基三氟丙基环三硅氧烷、甲基三氟丙基二氯硅烷、甲基三氟丙基二甲氧基硅烷、甲基三氟丙基二乙氧基硅烷、甲基乙烯基环四硅氧烷、甲基乙烯基二氯硅烷、甲基乙烯基二甲氧基硅氧、甲基乙烯基二乙氧基硅烷、八甲基环四硅氧烷、二甲基二氯硅烷、二甲基二甲氧基硅烷或二甲基二乙氧基硅烷中的至少一种;
所述T单体为三氟丙基三氯硅烷、三氟丙基三甲氧基硅烷、三氟丙基三乙氧基硅烷、甲基三甲氧基硅烷、甲基三乙氧基硅烷、乙烯基三甲氧基硅烷或乙烯基三乙氧基硅烷中的至少一种。
5.如权利要求书1所述的方法,其特征在于,所述水解反应中,催化剂为浓盐酸与三氟甲磺酸的混合物。
6.如权利要求书1所述的方法,其特征在于,所述缩聚反应中,催化剂为碱金属氢氧化物。
7.如权利要求1所述的方法,其特征在于,所述聚合反应的条件为于120~180℃、减压条件下,脱低沸0.5~4h。
8.如权利要求7所述的方法,其特征在于,所述减压条件为133~1330Pa。
9.如权利要求1所述的方法,其特征在于,所述缩聚反应后,加入弱酸中和反应体系中残留的碱。
10.权利要求1-3任一项所述的乙烯基氟硅树脂在军工设备的外层防护、输油管道外层的防水防腐、厨卫用具、挡风玻璃、木材和建筑物表面处理和涂料制备领域的应用。
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CN108440758A (zh) * | 2018-03-23 | 2018-08-24 | 哈尔滨工业大学 | 一种疏水氟硅树脂的制备方法 |
CN114196215A (zh) * | 2022-01-08 | 2022-03-18 | 深圳市康利邦科技有限公司 | 一种mtq硅树脂、其制备方法、含氟有机硅橡胶及其制备方法和应用 |
CN116217938A (zh) * | 2023-03-20 | 2023-06-06 | 浙江润禾有机硅新材料有限公司 | 一种长链烷基含氟乙烯基硅油及其制备方法 |
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CN108440758A (zh) * | 2018-03-23 | 2018-08-24 | 哈尔滨工业大学 | 一种疏水氟硅树脂的制备方法 |
CN114196215A (zh) * | 2022-01-08 | 2022-03-18 | 深圳市康利邦科技有限公司 | 一种mtq硅树脂、其制备方法、含氟有机硅橡胶及其制备方法和应用 |
CN116217938A (zh) * | 2023-03-20 | 2023-06-06 | 浙江润禾有机硅新材料有限公司 | 一种长链烷基含氟乙烯基硅油及其制备方法 |
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