CN106750239B - 一种含磷氮硅聚合物阻燃剂及其制备方法与应用 - Google Patents
一种含磷氮硅聚合物阻燃剂及其制备方法与应用 Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 48
- 229920000642 polymer Polymers 0.000 title claims abstract description 35
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 34
- 239000010703 silicon Substances 0.000 title claims abstract description 34
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 38
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 21
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 18
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 17
- 239000012065 filter cake Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- DWSWCPPGLRSPIT-UHFFFAOYSA-N benzo[c][2,1]benzoxaphosphinin-6-ium 6-oxide Chemical compound C1=CC=C2[P+](=O)OC3=CC=CC=C3C2=C1 DWSWCPPGLRSPIT-UHFFFAOYSA-N 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 9
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 8
- 230000008023 solidification Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 7
- 238000003808 methanol extraction Methods 0.000 claims description 7
- 239000012074 organic phase Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
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- 238000003756 stirring Methods 0.000 claims description 7
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 6
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- 206010013786 Dry skin Diseases 0.000 claims description 5
- -1 aminopropyl Chemical group 0.000 claims description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
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- 238000001291 vacuum drying Methods 0.000 claims description 3
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims 2
- 229930185605 Bisphenol Natural products 0.000 claims 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 125000005842 heteroatom Chemical group 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 210000003739 neck Anatomy 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- JQYOCVPEXWBLGO-UHFFFAOYSA-N [N].[Si].[P] Chemical compound [N].[Si].[P] JQYOCVPEXWBLGO-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003999 initiator 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
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
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Abstract
本发明公开了一种含磷氮硅聚合物阻燃剂及其制备方法和应用,其化学式结构为:其中,m=10~100,n=10~100。本发明的含磷氮硅聚合物阻燃剂中磷、氮、硅三者之间的协同阻燃效果提高了环氧树脂的阻燃性能。
Description
技术领域
本发明属于有机阻燃剂技术领域,具体涉及一种含磷氮硅聚合物阻燃剂及其制备方法与应用。
背景技术
环氧树脂是一类具有强度高、粘结性能好、耐腐蚀性好及介电性能优异等优点的高分子材料,被广泛应用于土木建筑、电子电器、航天航空及汽车机械等领域中,在国民经济各部门中起着不可或缺的位置。然而,环氧树脂是一类相对易燃的材料,这个缺点也大大限制了环氧树脂的应用,环氧树脂的阻燃也一直是研究者们不懈探讨的课题。
多元素阻燃剂是近年来兴起的一类阻燃技术,CN201510132367.3公开了一种含磷、氮膨胀型阻燃剂,作为一种环氧树脂反应型阻燃剂固化剂,不仅具有阻燃效果,还可以固化环氧树脂,固化物力学性能好。CN201510132367.3公开了一种DOPO衍生阻燃剂,利用磷氮阻燃剂的磷氮协同阻燃作用,及其较好的热稳定性和良好的成炭作用,用于环氧树脂等高分子材料的阻燃,阻燃效果好,拓展了DOPO阻燃剂的应用范围。含有多元素阻燃剂的阻燃效果良好,但现有的阻燃剂大多以小分子为主,往往存在着降低材料热稳定性或机械性能的缺点。
发明内容
本发明目的在于提供一种含磷氮硅聚合物阻燃剂。
本发明的另一目的在于提供上述含磷氮硅聚合物阻燃剂的制备方法。
本发明的目的在于提供上述含磷氮硅聚合物阻燃剂的应用。
本发明的技术方案如下:
一种含磷氮硅聚合物阻燃剂,其化学式结构为:
其中,m=10~100,n=10~100。
上述含磷氮硅聚合物阻燃剂的制备方法,其合成路线如下所示:
具体包括如下步骤:
(1)在冰浴下依次向反应容器中加入缩水甘油、9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)、三乙胺和第一有机溶剂,室温反应4~16h,接着用水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后,得含磷环氧单体EP-DOPO;上述缩水甘油、DOPO和三乙胺的摩尔比为1∶0.5~2.5∶0.5~2.5
(2)依次向另一反应容器中加入步骤(1)中所得的含磷环氧单体EP-DOPO、氨丙基笼型聚倍半硅氧烷(POSS-NH2)、甲醇钠和第二有机溶剂,加热至60~120℃,通氮气保护,反应4~24h,接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂;上述含磷环氧单体EP-DOPO、氨丙基笼型聚倍半硅氧烷和甲醇钠的摩尔比为1∶0.01~0.1∶0.01~0.1。
在本发明的一个优选实施方案中,所述第一有机溶剂为二氯甲烷、甲苯或四氯化碳。
在本发明的一个优选实施方案中,所述第二有机溶剂为甲苯、N,N-二甲基甲酰胺或1,4-二氧六环。
上述含磷氮硅聚合物阻燃剂在制备阻燃性环氧树脂中的应用。
在本发明的一个优选实施方案中,具体为:称取环氧树脂预聚体升温至70~110℃,加入0.1~50wt%的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着按化学计量比加入固化剂4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
进一步优选的,所述环氧树脂预聚体为E51双酚A型环氧树脂。
进一步优选的,所述环氧树脂预聚体与固化剂4,4-二氨基二苯甲烷的质量比为8∶2.02。
进一步优选的,所述升温程序为:120℃固化4h,140℃固化2h,180℃固化2h。
本发明的有益效果是:
1、本发明的制备方法通过制备含磷的环氧单体,以POSS-NH2为引发剂,利用环氧丙烷的开环反应制备出磷氮硅一体的聚合物阻燃剂,聚合物分子链中含有大量的-C-O-键,使聚合物分子链具有一定的柔软性,与高分子基体共混过程中表现出较好的相容性;同时固化后的阻燃性环氧树脂热稳定性与机械性能好;
2、本发明的含磷氮硅聚合物阻燃剂中磷、氮、硅三者之间的协同阻燃效果提高了环氧树脂的阻燃性能;
3、本发明的含磷氮硅聚合物阻燃剂的分子量可控,通过聚合物的分子量的调节可以控制体系中的磷、氮、硅含量比;
4、本发明的制备方法的合成反应较简单,原料成本低,产物的产率高。
附图说明
图1为实施例1中含磷氮硅聚合物阻燃剂的核磁共振氢谱图;
具体实施方式
以下通过具体实施方式结合附图对本发明的技术方案进行进一步的说明和描述下述实施例中,环氧树脂预聚体为E51双酚A型环氧树脂。
实施例1
(1)在冰浴下依次向单口瓶中加入2.88g(38.89mmol)缩水甘油、7g(32.41mmol)DOPO、3.94g(38.89mmol)三乙胺和50mL二氯甲烷,室温反应8h;接着用水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后得单体EP-DOPO。
(2)依次向双口瓶中加入5.72g(19.86mmol)步骤(1)中所得单体EP-DOPO、0.35g(0.40mmol)POSS-NH2、0.01g(0.20mmol)甲醇钠和30mLN,N-二甲基甲酰胺,加热至80℃,通氮气保护,反应进行12h;接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂(如图1所示)。
(3)称取20g环氧树脂预聚体升温至70℃,加入1.32g的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着加入5.05g4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
根据GB/T 2406-2009测得本实施例的阻燃性环氧树脂的氧指数为28.1%。
实施例2
(1)在冰浴下依次向单口瓶中加入2.88g(38.89mmol)缩水甘油、7g(32.41mmol)DOPO、3.94g(38.89mmol)三乙胺和50mL二氯甲烷,反应8h;接着用水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后得单体EP-DOPO。
(2)依次向双口瓶中加入5.72g(19.86mmol)步骤(1)中所得单体EP-DOPO、0.35g(0.40mmol)POSS-NH2、0.01g(0.20mmol)甲醇钠和30mLN,N-二甲基甲酰胺,加热至80℃,通氮气保护,反应进行12h;接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂。
(3)称取20g环氧树脂预聚体升温至70℃,加入0.61g的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着加入5.05g4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
根据GB/T 2406-2009测得本实施例的阻燃性环氧树脂的氧指数为27.5%。
实施例3
(1)在冰浴下依次向单口瓶中加入2.88g(38.89mmol)缩水甘油、7g(32.41mmol)DOPO、3.94g(38.89mmol)三乙胺和50mL二氯甲烷,反应8h;接着水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后得单体EP-DOPO。
(2)依次向双口瓶中加入5.72g(19.86mmol)步骤(1)中所得单体EP-DOPO、0.35g(0.40mmol)POSS-NH2、0.01g(0.20mmol)甲醇钠和30mLN,N-二甲基甲酰胺,加热至80℃,通氮气保护,反应进行12h;反接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂。
(3)称取20g环氧树脂预聚体升温至70℃,加入1.88g的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着加入5.05g4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
根据GB/T 2406-2009测得本实施例的阻燃性环氧树脂的氧指数为28.8%。
实施例4
(1)在冰浴下依次向单口瓶中加入2.88g(38.89mmol)缩水甘油、8g(37.04mmol)DOPO、3.94g(38.89mmol)三乙胺和50mL甲苯,步骤(1)2h;接着用水反复淬洗三次,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后得单体EP-DOPO。
(2)依次向双口瓶中加入5.72g(19.86mmol)步骤(1)中所得单体EP-DOPO、0.35g(0.40mmol)POSS-NH2、0.01g(0.20mmol)甲醇钠和30mL甲苯,加热至80℃,通氮气保护,反应进行12h;接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂。
(3)称取20g环氧树脂预聚体升温至70℃,加入1.32g的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着加入5.05g4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
根据GB/T 2406-2009测得本实施例的阻燃性环氧树脂的氧指数为28.3%。
实施例5
(1)在冰浴下依次向单口瓶中加入2.88g(38.89mmol)缩水甘油、7g(32.41mmol)DOPO、3.94g(38.89mmol)三乙胺和50mL二氯甲烷,反应8h;接着用水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后得单体EP-DOPO。
(2)依次向双口瓶中加入5.72g(19.86mmol)步骤(1)中所得单体EP-DOPO、0.70g(0.80mmol)POSS-NH2、0.02g(0.40mmol)甲醇钠和30mLN,N-二甲基甲酰胺,加热至80℃,通氮气保护,反应进行12h;接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂。
(3)称取20g环氧树脂预聚体升温至70℃,加入1.32g的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,接着加入5.05g4,4-二氨基二苯甲烷(DDM)直至完全溶解,然后倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
根据GB/T 2406-2009测得本实施例的阻燃性环氧树脂的氧指数为28.2%。
本领域普通技术人员可知,本发明的技术方案在下述范围内变化时,仍然能够得到与上述实施例相同或相近的技术效果,仍然属于本发明的保护范围:
以上所述,仅为本发明的较佳实施例而已,故不能依此限定本发明实施的范围,即依本发明专利范围及说明书内容所作的等效变化与修饰,皆应仍属本发明涵盖的范围内。
Claims (9)
1.一种含磷氮硅聚合物阻燃剂,其特征在于:其化学式结构为:
其中,m=10~100,n=10~100。
2.如权利要求1所述的一种含磷氮硅聚合物阻燃剂的制备方法,其特征在于:其合成路线如下所示:
具体包括如下步骤:
(1)在冰浴下依次向反应容器中加入缩水甘油、9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、三乙胺和第一有机溶剂,室温反应4~16h,接着用水反复淬洗,取有机相用无水硫酸镁干燥,抽滤,最后旋蒸除去溶剂后,得含磷环氧单体EP-DOPO;上述缩水甘油、DOPO和三乙胺的摩尔比为1∶0.5~2.5∶0.5~2.5
(2)依次向另一反应容器中加入步骤(1)中所得的含磷环氧单体EP-DOPO、氨丙基笼型聚倍半硅氧烷、甲醇钠和第二有机溶剂,加热至60~120℃,通氮气保护,反应4~24h,接着用甲醇沉淀得滤饼,滤饼用甲醇冲洗,所得白色固体于真空干燥箱中60℃干燥24h,即得所述含磷氮硅聚合物阻燃剂;上述含磷环氧单体EP-DOPO、氨丙基笼型聚倍半硅氧烷和甲醇钠的摩尔比为1∶0.01~0.1∶0.01~0.1。
3.如权利要求2所述的制备方法,所述第一有机溶剂为二氯甲烷、甲苯或四氯化碳。
4.如权利要求2所述的制备方法,所述第二有机溶剂为甲苯、N,N-二甲基甲酰胺或1,4-二氧六环。
5.权利要求1所述的含磷氮硅聚合物阻燃剂在制备阻燃性环氧树脂中的应用。
6.如权利要求5所述的应用,其特征在于:具体为:称取环氧树脂预聚体升温至70~110℃,加入0.1~50wt%的含磷氮硅聚合物阻燃剂,搅拌至呈均一透明的状态,按化学计量比加入固化剂4,4-二氨基二苯甲烷(DDM)直至完全溶解,倒入铝制模具中,设置升温程序进行固化得到阻燃性环氧树脂。
7.如权利要求6所述的应用,其特征在于:所述环氧树脂预聚体为E51双酚A型环氧树脂。
8.如权利要求6所述的应用,其特征在于:所述环氧树脂预聚体与固化剂4,4-二氨基二苯甲烷的质量比为8∶2.02。
9.如权利要求6所述的应用,其特征在于:所述升温程序为:120℃固化4h,140℃固化2h,180℃固化2h。
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