CN109369987A - 一种耐高温阻燃橡塑发泡保温材料 - Google Patents
一种耐高温阻燃橡塑发泡保温材料 Download PDFInfo
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- CN109369987A CN109369987A CN201811164073.9A CN201811164073A CN109369987A CN 109369987 A CN109369987 A CN 109369987A CN 201811164073 A CN201811164073 A CN 201811164073A CN 109369987 A CN109369987 A CN 109369987A
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- 239000012774 insulation material Substances 0.000 title claims abstract description 37
- 229920003023 plastic Polymers 0.000 title claims abstract description 30
- 239000004033 plastic Substances 0.000 title claims abstract description 30
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000003063 flame retardant Substances 0.000 claims abstract description 36
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 30
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 30
- 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 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 20
- 150000002148 esters Chemical class 0.000 claims abstract description 18
- 239000010451 perlite Substances 0.000 claims abstract description 18
- 235000019362 perlite Nutrition 0.000 claims abstract description 18
- 239000004642 Polyimide Substances 0.000 claims abstract description 15
- 229920001721 polyimide Polymers 0.000 claims abstract description 15
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 14
- 239000000440 bentonite Substances 0.000 claims abstract description 14
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 14
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000410 antimony oxide Inorganic materials 0.000 claims abstract description 13
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 13
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012188 paraffin wax Substances 0.000 claims abstract description 13
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 13
- 239000001993 wax Substances 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 11
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 11
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 9
- 239000004088 foaming agent Substances 0.000 claims abstract description 9
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 6
- 239000005046 Chlorosilane Substances 0.000 claims description 26
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 claims description 26
- 239000011261 inert gas Substances 0.000 claims description 16
- 229920000877 Melamine resin Polymers 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- YLFBFPXKTIQSSY-UHFFFAOYSA-N dimethoxy(oxo)phosphanium Chemical compound CO[P+](=O)OC YLFBFPXKTIQSSY-UHFFFAOYSA-N 0.000 claims description 9
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- 239000005060 rubber Substances 0.000 claims description 9
- 239000012467 final product Substances 0.000 claims description 8
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- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 8
- 150000003009 phosphonic acids Chemical class 0.000 claims description 8
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- DCFKHNIGBAHNSS-UHFFFAOYSA-N chloro(triethyl)silane Chemical compound CC[Si](Cl)(CC)CC DCFKHNIGBAHNSS-UHFFFAOYSA-N 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
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- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- ACTAPAGNZPZLEF-UHFFFAOYSA-N chloro(tripropyl)silane Chemical compound CCC[Si](Cl)(CCC)CCC ACTAPAGNZPZLEF-UHFFFAOYSA-N 0.000 claims description 3
- PDNUHAXBKKDGAM-UHFFFAOYSA-N chloro-diethyl-methylsilane Chemical compound CC[Si](C)(Cl)CC PDNUHAXBKKDGAM-UHFFFAOYSA-N 0.000 claims description 3
- HXVPUKPVLPTVCQ-UHFFFAOYSA-N chloro-dimethyl-propylsilane Chemical compound CCC[Si](C)(C)Cl HXVPUKPVLPTVCQ-UHFFFAOYSA-N 0.000 claims description 3
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- 150000004702 methyl esters Chemical class 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
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- 239000011159 matrix material Substances 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000000354 decomposition reaction Methods 0.000 description 6
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- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 2
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- 238000004321 preservation Methods 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920006602 NBR/PVC Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
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- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
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- 238000004378 air conditioning Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
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- OMRRUNXAWXNVFW-UHFFFAOYSA-N fluoridochlorine Chemical compound ClF OMRRUNXAWXNVFW-UHFFFAOYSA-N 0.000 description 1
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- 239000011496 polyurethane foam Substances 0.000 description 1
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Abstract
本发明提供的一种耐高温橡塑发泡保温材料,至少由以下重量份的组份制成:NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、玻璃纤维、膨胀珍珠岩、膨润土、阻燃剂、Ca/Zn热稳定剂、空心微球、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶、发泡剂、膨胀型隔热阻燃材料。本发明还提供了上述耐高温橡塑发泡保温材料的制备方法。该材料以NBR、EVA、PVC体系为基体,同时添加聚酰亚胺、聚四氟乙烯与NBR、EVA、PVC体系配合大大提高了高温下的稳定性,并通过加入膨胀珍珠岩、膨润土、空心微球、膨胀型隔热阻燃材料,能够保证存在较多的闭孔孔隙,导热系数小,大大提高了耐高温性能。
Description
技术领域
本发明属于材料领域,特别涉及一种耐高温阻燃橡塑发泡保温材料。
背景技术
随着能源消耗的日益增加,有效利用能源和节约能源已经成为全人类关注的最重要问题之一。自20世纪90年代以来,我国出台《节能法》并制定了一系列节能法规,对节能提出了具体的标准和要求。传统的建筑保温材料,以泡沫材料为主要、再加上粘合剂之类,其不足之处在于,强度较低,不抗压,抗冲压能力小、易老化,不耐用,综合成本高。
保温材料一般是指导热系数小于或等于0.2的材料,保温材料发展很快,在工业和建筑中采用良好的保温技术与材料往往可以起到事半功倍的效果。保温材料具有密度小、柔韧性高、防水等特性,可收集多余热量,随意性好,无空腔,可避免负风压撕裂和脱落。保温材料一般分为无机类和有机类两种。有机类保温材料主要有聚氨酯泡沫、聚苯板、酚醛泡沫等。无机保温材料主要集中在气凝胶毡、玻璃棉、岩棉、膨胀珍珠岩、微纳隔热板等具有一定保温效果的材料,能够达到A级防火。
橡塑(NBR/PVC)保温材料以耐磨、耐热及阻燃性能优异的丁腈橡胶、聚氯乙烯等为主要原料,加入发泡剂经过密炼、发泡而成,系含有大量微小独立气泡的柔性泡沫绝热材料。可广泛用于中央空调、建筑、化工、医药、轻纺、冶金、船舶、电气等领域各类冷热介质管道、容器保温,能达到降低冷、热损耗的优良效果,亦可加工制作健身器材、医疗器械及日用品的把套、护套等。
橡塑发泡保温材料是高品质的保温节能材料,不含有大气层有害的氯氟化物,所以在安装及应用中不会产生任何对人体有害的污染物;其导热系数低、防火性能好;由于其为闭泡式结构,外界空气中的水很难渗透到材料之中,具有优异的抗水汽渗透能力。但是随着全球变暖趋势进一步加强,高温天气持续的时间越来越久,在高温持续天气下,容易造成橡塑发泡材料的出现开裂、影响保温性能等问题,缩短了其使用寿命。
此外,现有橡塑发泡材料的应用已经比较普遍,但近年来发生的多起因保温材料发生的火灾事故,则是由于橡塑发泡材料阻燃性能较差,燃烧时散发有毒气体所致。这些历历在目的事故现场让人们认识到在节能保温的同时安全的重要性。阻燃保温材料具有节能利废、保温隔热、防火阻燃的优异性能的优异性能以及低廉的价格等特点,有着广泛的市场需求。申请号为201510211056.6公开了一种阻燃保温材料,由稻壳炭、聚乙烯醇、水、白乳胶、增韧剂、石膏粉、阻燃剂、玻化微珠、膨胀珍珠岩支撑。该发明具有良好的阻燃效果,保温性能好,但其中膨胀珍珠岩的耐水性差,不适宜大范围的推广应用。因此,开发一种阻燃效果好的发泡橡塑保温材料成为越来越多人研究的热点。
发明内容
技术问题:为了解决现有技术的缺陷,本发明提供了一种耐高温阻燃橡塑发泡保温材料。
技术方案:本发明提供的一种耐高温橡塑发泡保温材料,至少由以下重量份的组份制成:NBR 5-15份、EVA 5-15份、PVC5-15份、聚酰亚胺10-15份、聚四氟乙烯5-10份、玻璃纤维5-15份、膨胀珍珠岩6-8份、膨润土2-4份、阻燃剂5-15份、Ca/Zn热稳定剂1-2份、空心微球5-15份、聚乙二醇1-2份、三氧化二锑1-2份、防护蜡1-2份、氧化石蜡5-8份、二辛脂1-2份、三元乙丙橡胶5-8份、发泡剂4-6份、膨胀型隔热阻燃材料5-15份;所述膨胀型隔热阻燃材料的结构如式(I)所示:
式中,n为460-990之间的整数;R为烷基。
优选地,所述耐高温橡塑发泡保温材料至少由以下重量份的组份制成:NBR 10份、EVA 10份、PVC 10份、聚酰亚胺12份、聚四氟乙烯8份、玻璃纤维10份、膨胀珍珠岩7份、膨润土3份、阻燃剂10份、Ca/Zn热稳定剂1.5份、空心微球10份、聚乙二醇1.5份、三氧化二锑1.5份、防护蜡1.5份、氧化石蜡7份、二辛脂1.5份、三元乙丙橡胶6份、发泡剂5份、膨胀型隔热阻燃材料10份。
优选地,所述空心微球为包括以下重量份数组分:SiO2 50-90份,Al2O3:10-50份,K2O:5-10份,CaO 1-10份,B2O3 1-12份。
本发明还提供了上述耐高温橡塑发泡保温材料的制备方法,包括以下步骤:
(1)膨胀型隔热阻燃材料的制备:在惰性气体的保护、室温条件下,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;在惰性气体的保护、350~400℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在催化剂作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶(1~1.2);
(2)耐高温橡塑发泡保温材料的制备:将NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、Ca/Zn热稳定剂投入密炼机进行高温密炼,温度为150~160℃,时间为8~12min;降温至90-110℃,恒温条件下,再加入玻璃纤维、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶,混炼10-20min,出料至发泡炉内,加入膨胀珍珠岩、膨润土、阻燃剂、空心微球、发泡剂、膨胀型隔热阻燃材料,130-150℃下发泡15-45min;冷却,即得。
步骤(1)中,所述氯硅烷选自三甲基氯硅烷、三乙基氯硅烷、三丙基氯硅烷、二甲基乙基氯硅烷、二甲基丙基氯硅烷和二乙基甲基氯硅烷。
步骤(1)中,所述氯硅烷与膦酸二甲酯的摩尔比为1∶(3~4)。
步骤(1)中,膦酸二甲酯与氯硅烷反应的溶剂选自二氯甲烷、氯仿和丙酮。
步骤(1)中,催化剂选自无水氯化镁、磷酸三苯酯、三乙胺中的一种或几种。
有益效果:本发明提供的耐高温橡塑发泡保温材料以NBR、EVA、PVC体系为基体,同时添加聚酰亚胺、聚四氟乙烯与NBR、EVA、PVC体系配合大大提高了高温下的稳定性,并通过加入膨胀珍珠岩、膨润土、空心微球、膨胀型隔热阻燃材料,能够保证存在较多的闭孔孔隙,导热系数小,大大提高了耐高温性能。
具体实施方式
下面对本发明作出进一步说明。
实施例1
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为二氯甲烷,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为三甲基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶3.5;
(2)在惰性气体的保护、370℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在无水氯化镁作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1.1。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度750,1%的热失重分解温度为247.6℃。
实施例2
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为二氯甲烷,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为三乙基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶3;
(2)在惰性气体的保护、350℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在无水氯化镁作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1.1.。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度990,1%的热失重分解温度为235.7℃。
实施例3
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为氯仿,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为三丙基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶4;
(2)在惰性气体的保护、350℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在磷酸三苯酯作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1.1.。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度800,1%的热失重分解温度为237.6℃。
实施例4
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为丙酮,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为二甲基乙基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶3.2;
(2)在惰性气体的保护、360℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在磷酸三苯酯作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度460,1%的热失重分解温度为219.1℃。
实施例5
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为丙酮,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为二乙基甲基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶3.8;
(2)在惰性气体的保护、390℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在三乙胺作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1.2。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度680,1%的热失重分解温度为231.2℃。
实施例6
膨胀型阻燃材料的制备方法,包括如下步骤:
(1)在惰性气体的保护、室温条件下,反应的溶剂为丙酮,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;所述氯硅烷为二甲基丙基氯硅烷;所述氯硅烷与膦酸二甲酯的摩尔比为1∶3.5;
(2)在惰性气体的保护、380℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在三乙胺作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶1.1。
水洗、烘干和粉碎,即得所述阻燃材料,聚合度590,1%的热失重分解温度为229.0℃。
实施例7
耐高温橡塑发泡保温材料,至少由以下重量份的组份制成:NBR 15份、EVA 5份、PVC15份、聚酰亚胺10份、聚四氟乙烯10份、玻璃纤维5份、膨胀珍珠岩8份、膨润土2份、阻燃剂15份、Ca/Zn热稳定剂1份、空心微球15份、聚乙二醇2份、三氧化二锑1份、防护蜡2份、氧化石蜡5份、二辛脂2份、三元乙丙橡胶8份、发泡剂4份、实施例1的膨胀型隔热阻燃材料15份。
所述空心微球为包括以下重量份数组分:SiO2 90份,Al2O3:10份,K2O:5份,CaO 10份,B2O3 1份。
耐高温橡塑发泡保温材料的制备方法,包括以下步骤:将NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、Ca/Zn热稳定剂投入密炼机进行高温密炼,温度为150℃,时间为12min;降温至90℃,恒温条件下,再加入玻璃纤维、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶,混炼20min,出料至发泡炉内,加入膨胀珍珠岩、膨润土、阻燃剂、空心微球、发泡剂、膨胀型隔热阻燃材料,150℃下发泡15min;冷却,即得。
实施例8
耐高温橡塑发泡保温材料,至少由以下重量份的组份制成:NBR 5份、EVA 15份、PVC5份、聚酰亚胺15份、聚四氟乙烯5份、玻璃纤维15份、膨胀珍珠岩6份、膨润土4份、阻燃剂5份、Ca/Zn热稳定剂2份、空心微球5份、聚乙二醇1份、三氧化二锑2份、防护蜡1份、氧化石蜡8份、二辛脂1份、三元乙丙橡胶5份、发泡剂6份、实施例2的膨胀型隔热阻燃材料5份。
所述空心微球为包括以下重量份数组分:SiO2 50份,Al2O3:50份,K2O:10份,CaO 1份,B2O3 12份。
耐高温橡塑发泡保温材料的制备方法,包括以下步骤:将NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、Ca/Zn热稳定剂投入密炼机进行高温密炼,温度为160℃,时间为8min;降温至110℃,恒温条件下,再加入玻璃纤维、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶,混炼10min,出料至发泡炉内,加入膨胀珍珠岩、膨润土、阻燃剂、空心微球、发泡剂、膨胀型隔热阻燃材料,130℃下发泡45min;冷却,即得。
实施例9
耐高温橡塑发泡保温材料,至少由以下重量份的组份制成:NBR 10份、EVA 10份、PVC 10份、聚酰亚胺12份、聚四氟乙烯8份、玻璃纤维10份、膨胀珍珠岩7份、膨润土3份、阻燃剂10份、Ca/Zn热稳定剂1.5份、空心微球10份、聚乙二醇1.5份、三氧化二锑1.5份、防护蜡1.5份、氧化石蜡7份、二辛脂1.5份、三元乙丙橡胶6份、发泡剂5份、实施例3的膨胀型隔热阻燃材料10份。
所述空心微球为包括以下重量份数组分:SiO2 70份,Al2O3:30份,K2O:8份,CaO 5份,B2O3 6份。
耐高温橡塑发泡保温材料的制备方法,包括以下步骤:将NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、Ca/Zn热稳定剂投入密炼机进行高温密炼,温度为155℃,时间为10min;降温至100℃,恒温条件下,再加入玻璃纤维、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶,混炼15min,出料至发泡炉内,加入膨胀珍珠岩、膨润土、阻燃剂、空心微球、发泡剂、膨胀型隔热阻燃材料,140℃下发泡30min;冷却,即得。
测试实施例7-9的橡塑发泡绝热保温材料的性能,见表1。
Claims (8)
1.一种耐高温橡塑发泡保温材料,其特征在于:至少由以下重量份的组份制成:NBR 5-15份、EVA 5-15份、PVC5-15份、聚酰亚胺10-15份、聚四氟乙烯5-10份、玻璃纤维5-15份、膨胀珍珠岩6-8份、膨润土2-4份、阻燃剂5-15份、Ca/Zn热稳定剂1-2份、空心微球5-15份、聚乙二醇1-2份、三氧化二锑1-2份、防护蜡1-2份、氧化石蜡5-8份、二辛脂1-2份、三元乙丙橡胶5-8份、发泡剂4-6份、膨胀型隔热阻燃材料5-15份;所述膨胀型隔热阻燃材料的结构如式(I)所示:
式中,n为460-990之间的整数;R为烷基。
2.根据权利要求1所述的一种耐高温橡塑发泡保温材料,其特征在于:至少由以下重量份的组份制成:NBR 10份、EVA 10份、PVC 10份、聚酰亚胺12份、聚四氟乙烯8份、玻璃纤维10份、膨胀珍珠岩7份、膨润土3份、阻燃剂10份、Ca/Zn热稳定剂1.5份、空心微球10份、聚乙二醇1.5份、三氧化二锑1.5份、防护蜡1.5份、氧化石蜡7份、二辛脂1.5份、三元乙丙橡胶6份、发泡剂5份、膨胀型隔热阻燃材料10份。
3.根据权利要求1所述的一种耐高温橡塑发泡保温材料,其特征在于:所述空心微球为包括以下重量份数组分:SiO2 50-90份,Al2O3:10-50份,K2O:5-10份,CaO 1-10份,B2O3 1-12份。
4.权利要求1所述的一种耐高温橡塑发泡保温材料的制备方法,其特征在于:包括以下步骤:
(1)膨胀型隔热阻燃材料的制备:在惰性气体的保护、室温条件下,将氯硅烷和膦酸二甲酯反应,制得烷基硅基膦酸二甲酯;在惰性气体的保护、350~400℃下,将步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺在催化剂作用下反应,冷却后真空干燥即得;步骤(1)所得物烷基硅基膦酸二甲酯与三聚氰胺的摩尔比为1∶(1~1.2);
(2)耐高温橡塑发泡保温材料的制备:将NBR、EVA、PVC、聚酰亚胺、聚四氟乙烯、Ca/Zn热稳定剂投入密炼机进行高温密炼,温度为150~160℃,时间为8~12min;降温至90-110℃,恒温条件下,再加入玻璃纤维、聚乙二醇、三氧化二锑、防护蜡、氧化石蜡、二辛脂、三元乙丙橡胶,混炼10-20min,出料至发泡炉内,加入膨胀珍珠岩、膨润土、阻燃剂、空心微球、发泡剂、膨胀型隔热阻燃材料,130-150℃下发泡15-45min;冷却,即得。
5.根据权利要求4所述的一种耐高温橡塑发泡保温材料的制备方法,其特征在于:步骤(1)中,所述氯硅烷选自三甲基氯硅烷、三乙基氯硅烷、三丙基氯硅烷、二甲基乙基氯硅烷、二甲基丙基氯硅烷和二乙基甲基氯硅烷。
6.根据权利要求4所述的一种耐高温橡塑发泡保温材料的制备方法,其特征在于:步骤(1)中,所述氯硅烷与膦酸二甲酯的摩尔比为1∶(3~4)。
7.根据权利要求4所述的一种耐高温橡塑发泡保温材料的制备方法,其特征在于:步骤(1)中,膦酸二甲酯与氯硅烷反应的溶剂选自二氯甲烷、氯仿和丙酮。
8.根据权利要求4所述的一种耐高温橡塑发泡保温材料的制备方法,其特征在于:步骤(1)中,催化剂选自无水氯化镁、磷酸三苯酯、三乙胺中的一种或几种。
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