CN111333964A - 一种聚烯烃弹性体发泡柔性保冷材料 - Google Patents
一种聚烯烃弹性体发泡柔性保冷材料 Download PDFInfo
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- CN111333964A CN111333964A CN202010191247.1A CN202010191247A CN111333964A CN 111333964 A CN111333964 A CN 111333964A CN 202010191247 A CN202010191247 A CN 202010191247A CN 111333964 A CN111333964 A CN 111333964A
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- polyolefin elastomer
- insulation material
- cold insulation
- flexible cold
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- 229920006124 polyolefin elastomer Polymers 0.000 title claims abstract description 39
- 239000012774 insulation material Substances 0.000 title claims abstract description 32
- 239000003822 epoxy resin Substances 0.000 claims abstract description 39
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 39
- 239000004088 foaming agent Substances 0.000 claims abstract description 33
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 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 7
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 238000005187 foaming Methods 0.000 claims description 31
- 238000002156 mixing Methods 0.000 claims description 26
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 22
- 229920001897 terpolymer Polymers 0.000 claims description 21
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 18
- -1 ethylene-propylene-5-vinyl-2-norbornene Chemical class 0.000 claims description 17
- 239000000047 product Substances 0.000 claims description 15
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical group FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 claims description 15
- 229940029284 trichlorofluoromethane Drugs 0.000 claims description 15
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 claims description 14
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 238000010074 rubber mixing Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 9
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 9
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
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- 238000004073 vulcanization Methods 0.000 claims description 4
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- LVTHXRLARFLXNR-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F LVTHXRLARFLXNR-UHFFFAOYSA-M 0.000 claims description 3
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims description 3
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 150000002019 disulfides Chemical class 0.000 claims description 2
- 239000002557 mineral fiber Substances 0.000 claims description 2
- 239000007983 Tris buffer Substances 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 9
- OSXYHAQZDCICNX-UHFFFAOYSA-N dichloro(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](Cl)(Cl)C1=CC=CC=C1 OSXYHAQZDCICNX-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 6
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- CSNJTIWCTNEOSW-UHFFFAOYSA-N carbamothioylsulfanyl carbamodithioate Chemical compound NC(=S)SSC(N)=S CSNJTIWCTNEOSW-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 4
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- VOBUAPTXJKMNCT-UHFFFAOYSA-N 1-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound CCCCCC(OC(=O)C=C)OC(=O)C=C VOBUAPTXJKMNCT-UHFFFAOYSA-N 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 2
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- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
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- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
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- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- PXJJSXABGXMUSU-UHFFFAOYSA-N disulfur dichloride Chemical compound ClSSCl PXJJSXABGXMUSU-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
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- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- 150000003585 thioureas Chemical class 0.000 description 1
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Abstract
本发明公开了一种聚烯烃弹性体发泡柔性保冷材料。包括如下重量份数的原料:聚烯烃弹性体30‑40份、环氧树脂10‑20份、填料40‑60份、阻燃剂3‑8份、发泡剂8‑15份、橡胶促进剂1‑3份。本发明采用的聚烯烃弹性体组分,发泡剂组分,橡胶促进剂组分,这3种组分在功能上相互支持,补充各自所产生的缺陷,最终使得制备的产品既能保持较高的力学性能。
Description
技术领域
本发明属于低温保冷材料制备技术领域,具体涉及一种聚烯烃弹性体发泡柔性保冷材料。
背景技术
热塑性弹性体是一种由半结晶态热塑性树脂和链段柔软的弹性体所组成的嵌段共聚物,它同时具有了橡胶的高弹性和热塑性树脂的热塑性。热塑性弹性体主要有聚苯乙烯类、烯烃类、聚氨酯类和聚酯类弹性体。共混型热塑性弹性体的开发与应用是当前高分子材料科学发展研究的新方向,它经历了从简单的共混到部分动态交联共混,再发展到完全动态交联共混。制备过程是在密炼机或双螺杆挤出机内经过高温、高速剪切作用,进行动态全硫化的热塑性弹性体,橡胶相在硫化的同时被剪切形成微米级尺寸。
现在用于LNG船舶和储罐的绝热材料主要是聚氨酯泡沫和泡沫玻璃,但是聚氨酯泡沫塑料最大的缺点低温下尺寸稳定性差,容易变形开裂且施工不便,对于在LNG船舶上的应用具有一定危险性,而泡沫玻璃的热导率比较高,采用热塑性弹性体制备的发泡保冷材料虽然能克服上述缺点,但是,却不耐冷,在极寒条件下稳定性更差,容易开裂,影响发泡保冷材料的性能主要涉及热塑性弹性体原料,发泡剂及橡胶促进剂。
大部分热塑性弹性体耐冷性差,采用与耐冷的环氧树脂混炼是一种可能的解决方案,但是环氧树脂与热塑性弹性体共混后虽然能改进抗低温性能,但是其强度下降。橡胶促进剂能促进橡胶的硫化作用,改善硫化胶的物理机械性能,主要有噻唑类、秋兰姆类、次磺酰胺类、二硫代氨基甲酸盐类、硫脲类、醛胺类、黄原酸盐;发泡材料的制备涉及到硫化体系的交联和发泡剂分解产生气体的过程,化学发泡剂分解产生气体,在高分子材料中产生气泡而获得发泡材料,泡孔的生长过程中,橡胶也会硫化交联,交联程度高的情况下会限制泡孔的生长,交联程度低会使得产生的泡孔过大影响材料的力学性能,因此,发泡剂和橡胶促进剂是一对既相互促进又相互限制的组合,根据不同的目的,要选择合适的组合。
发明内容
本发明的目的在于提供一种聚烯烃弹性体发泡柔性保冷材料及其制备方法。
一种聚烯烃弹性体发泡柔性保冷材料,包括如下重量份数的原料:聚烯烃弹性体30-40份、有机硅改性环氧树脂10-20份、填料40-60份、阻燃剂3-8份、发泡剂8-15份、橡胶促进剂1-3份。
所述聚烯烃弹性体为三元乙丙橡胶。
所述三元乙丙橡胶为乙烯-丙烯-5-乙烯基-2-降冰片烯三元共聚物、乙烯-丙烯-双环戊二烯三元共聚物、乙烯-丙烯-1,4-己二烯三元共聚物中的一种及多种。
所述有机硅改性环氧树脂为端环氧基三(二甲基硅氧烷基)硅氧烷改性环氧树脂、二氯二苯基硅烷改性环氧树脂、聚氨酯改性环氧树脂中的一种及多种。
所述填料为滑石粉、硬脂酸钡、矿物纤维、碳酸钙、硅酸钙中的一种或几种。
所述发泡剂为三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物。
所述发泡剂OBSH是一种白色至淡黄色的粉末,无味,无毒,无污染,分解温度161℃,发气量313ml/g,在橡胶中易分散,发泡孔均匀细小。
所述橡胶促进剂为纳米羟基磷灰石负载二氯化二硫。
所述纳米羟基磷灰石负载二氯化二硫的制备方法如下:将纳米羟基磷灰石10-15g分散在200mL石油醚溶剂中,搅拌过程中缓慢滴加S2Cl2,滴加总量为10-20mL,在62-75℃氮气保护下搅拌反应6-10h,反应产物过滤后用无水乙醇洗涤2-6次,真空干燥10-15h后得到纳米羟基磷灰石负载二氯化二硫。
所述阻燃剂为聚磷酸铵、硼酸锌、偏硼酸钠、钛酸铝、全氟丁烷磺酸钾中的一种或几种。
上述聚烯烃弹性体发泡柔性保冷材料的制备方法,按照如下步骤进行:
(1)按照重量份数,取聚烯烃弹性体30-40份、有机硅改性环氧树脂10-20份,加入至密炼机中,在130-150℃的温度下密炼10-25min;
(2)将步骤(1)得到的产物加入至开放式炼胶机中,加入填料40-60份、阻燃剂3-8份、发泡剂8-15份、橡胶促进剂1-3份,在20-30℃的温度下混炼5-8min;
(3)将步骤(2)制备的发泡材料混合物送入挤出机,在挤出机温度为20-50℃条件下挤出成型的片材;
(4)将步骤(3)制备的片材放置于130-170℃的烘箱中,硫化发泡50-60min后冷却,制成。
本发明的有益效果:本发明通过优化发泡柔性保冷材料制备的配方,大幅度提高了发泡柔性保冷材料在低温下的力学性能。最优的实施方案制备的发泡柔性保冷材料在-165℃条件下的拉伸强达到266.0kPa,在-165℃,10%压缩变形下的压缩强度为121kPa,吸水率0.26%,透湿系数3.1x1011g/(m.s.Pa)。本发明采用的聚烯烃弹性体组分,发泡剂组分,橡胶促进剂组分,这3种组分在功能上相互支持,补充各自所产生的缺陷,最终使得制备的产品既能保持较高的力学性能。
附图说明
图1为三氯氟甲烷与发泡剂OBSH不同质量比条件下制备的产品的压缩强度。
具体实施方式
为了便于理解本发明,下面将对本发明进行更全面的描述。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
实施例1制备主料的优选
聚烯烃弹性体发泡柔性保冷材料的制备,聚烯烃弹性体选用乙烯-醋酸乙烯共聚物、聚丙烯、聚4-甲基-1-戊烯、乙烯-丙烯-5-乙烯基-2-降冰片烯三元共聚物、乙烯-丙烯-双环戊二烯三元共聚物、乙烯-丙烯-1,4-己二烯三元共聚物;
按照重量份数,取聚烯烃弹性体35份、环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、三氯氟甲烷15份、二硫化秋兰姆2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为40℃条件下挤出成型的片材;将制备的片材放置于150℃的烘箱中,硫化发泡55min后冷却,制成样品。
根据ASTM D1623-17硬质泡沫塑料拉伸和拉伸粘接性能的试验方法,测定上述各样品在-165℃条件下的拉伸强度,测试结果如表1所示;
表1
聚烯烃弹性体 | 拉伸强度kPa |
乙烯-醋酸乙烯共聚物 | 146.7 |
聚丙烯 | 128.8 |
聚4-甲基-1-戊烯 | 135.9 |
乙烯-丙烯-5-乙烯基-2-降冰片烯三元共聚物 | 176.9 |
乙烯-丙烯-双环戊二烯三元共聚物 | 179.9 |
乙烯-丙烯-1,4-己二烯三元共聚物 | 177.3 |
由表1可以看出,采用三元乙丙橡胶作为原料制备的产品显拉伸强度显著高于其他材料,乙烯-丙烯-双环戊二烯三元共聚物达到179.9kPa,为最优材料。
实施例2环氧树脂的优选
聚烯烃弹性体发泡柔性保冷材料的制备,环氧树脂选用己二醇二丙烯酸酯改性环氧树脂、3-氨丙基三乙氧基硅烷改性环氧树脂、氧化石墨烯改性环氧树脂、端环氧基三(二甲基硅氧烷基)硅氧烷改性环氧树脂、二氯二苯基硅烷改性环氧树脂、聚氨酯改性环氧树脂;
按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物35份、环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、三氯氟甲烷15份、二硫化秋兰姆2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为40℃条件下挤出成型的片材;将制备的片材放置于150℃的烘箱中,硫化发泡55min后冷却,制成样品。
根据ASTM D1623-17硬质泡沫塑料拉伸和拉伸粘接性能的试验方法,测定上述各样品在-165℃条件下的拉伸强度,测试结果如表2所示;
表2
环氧树脂 | 拉伸强度kPa |
己二醇二丙烯酸酯改性环氧树脂 | 176.3 |
3-氨丙基三乙氧基硅烷改性环氧树脂 | 178.2 |
氧化石墨烯改性环氧树脂 | 165.6 |
端环氧基三(二甲基硅氧烷基)硅氧烷改性环氧树脂 | 213.3 |
二氯二苯基硅烷改性环氧树脂 | 234.2 |
聚氨酯改性环氧树脂 | 225.9 |
实施例3发泡剂的优选
聚烯烃弹性体发泡柔性保冷材料的制备,发泡剂选用三氯氟甲烷与发泡剂OBSH按照质量比5:1、4:1、3:1、2:1、1:1、1:2、1:3、1:4混合的混合物;
按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物35份、二氯二苯基硅烷改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、发泡剂15份、二硫化秋兰姆2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为40℃条件下挤出成型的片材;将制备的片材放置于150℃的烘箱中,硫化发泡55min后冷却,制成样品。
根据ASTM D1621-16规定的测试方法(-165℃,10%压缩变形),测定上述各样品在-165℃条件下的压缩强度,测试结果如图1所示,三氯氟甲烷与发泡剂OBSH按照质量比2:1组合时,制备的发泡柔性保冷材料压缩强度最高,三氯氟甲烷与发泡剂OBSH组合的效果均比单组分好,证明三氯氟甲烷与发泡剂OBSH组合使用具有协同增效的效果。
实施例4橡胶促进剂的制备及应用
橡胶促进剂为纳米羟基磷灰石负载二氯化二硫,制备方法如下:将纳米羟基磷灰石12g分散在200mL石油醚溶剂中,搅拌过程中缓慢滴加S2Cl2,滴加总量为15mL,在70℃氮气保护下搅拌反应8h,反应产物过滤后用无水乙醇洗涤5次,真空干燥12h后得到纳米羟基磷灰石负载二氯化二硫。
聚烯烃弹性体发泡柔性保冷材料的制备,橡胶促进剂选用纳米羟基磷灰石负载二氯化二硫、二氯化二硫、偶氮二甲酰胺、HFC-245FA;
按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物35份、二氯二苯基硅烷改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)15份、二硫化秋兰姆2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为40℃条件下挤出成型的片材;将制备的片材放置于150℃的烘箱中,硫化发泡55min后冷却,制成样品。
根据ASTM D1623-17硬质泡沫塑料拉伸和拉伸粘接性能的试验方法,测定上述各样品在-165℃条件下的拉伸强度,测试结果如表3所示:
表3
橡胶促进剂 | 拉伸强度kPa |
纳米羟基磷灰石负载二氯化二硫 | 266.0 |
二氯化二硫 | 211.2 |
偶氮二甲酰胺 | 235.3 |
HFC-245FA | 233.3 |
由表3可知,采用纳米羟基磷灰石负载二氯化二硫作为发泡剂,产品的在-165℃条件下的拉伸强度显著增强,该实施方案是本发明最优实施方案,制备的聚烯烃弹性体发泡柔性保冷材料在-165℃,10%压缩变形下的压缩强度为121kPa,吸水率0.26%,透湿系数3.1x1011g/(m.s.Pa)。
下述实施例为本发明可实现的其他实施方式,虽然产品性能检测指标不及实施例4,但也应在本发明的保护范围之内。
实施例5
聚烯烃弹性体发泡柔性保冷材料的制备,按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物45份、端环氧基三(二甲基硅氧烷基)硅氧烷改性环氧树脂15份,加入至密炼机中,在145℃的温度下密炼12min;将得到的产物加入至开放式炼胶机中,加入碳酸钙45份、聚磷酸铵5份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)16份、纳米羟基磷灰石负载二氯化二硫3份,在22℃的温度下混炼6min;将制备的发泡材料混合物送入挤出机,在挤出机温度为30℃条件下挤出成型的片材;将制备的片材放置于145℃的烘箱中,硫化发泡50min后冷却,制成样品。
实施例6
聚烯烃弹性体发泡柔性保冷材料的制备,按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物35份、聚氨酯改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)15份、纳米羟基磷灰石负载二氯化二硫2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为35℃条件下挤出成型的片材;将制备的片材放置于150℃的烘箱中,硫化发泡60min后冷却,制成样品。
实施例7
聚烯烃弹性体发泡柔性保冷材料的制备,按照重量份数,取乙烯-丙烯-5-乙烯基-2-降冰片烯三元共聚物35份、二氯二苯基硅烷改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、聚磷酸铵6份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)15份、纳米羟基磷灰石负载二氯化二硫2份,在30℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为45℃条件下挤出成型的片材;将制备的片材放置于160℃的烘箱中,硫化发泡55min后冷却,制成样品。
实施例8
聚烯烃弹性体发泡柔性保冷材料的制备,按照重量份数,取乙烯-丙烯-1,4-己二烯三元共聚物35份、二氯二苯基硅烷改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、钛酸铝3份、全氟丁烷磺酸钾2份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)15份、纳米羟基磷灰石负载二氯化二硫2份,在20℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为40℃条件下挤出成型的片材;将制备的片材放置于170℃的烘箱中,硫化发泡50min后冷却,制成样品。
实施例9
聚烯烃弹性体发泡柔性保冷材料的制备,按照重量份数,取乙烯-丙烯-双环戊二烯三元共聚物35份、二氯二苯基硅烷改性环氧树脂15份,加入至密炼机中,在140℃的温度下密炼15min;将得到的产物加入至开放式炼胶机中,加入碳酸钙50份、硼酸锌2份、偏硼酸钠4份、发泡剂(三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物)15份、纳米羟基磷灰石负载二氯化二硫2份,在25℃的温度下混炼7min;将制备的发泡材料混合物送入挤出机,在挤出机温度为50℃条件下挤出成型的片材;将制备的片材放置于160℃的烘箱中,硫化发泡55min后冷却,制成样品。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (10)
1.一种聚烯烃弹性体发泡柔性保冷材料,其特征在于,包括如下重量份数的原料:聚烯烃弹性体30-40份、环氧树脂10-20份、填料40-60份、阻燃剂3-8份、发泡剂8-15份、橡胶促进剂1-3份。
2.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述聚烯烃弹性体为三元乙丙橡胶。
3.根据权利要求2所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述三元乙丙橡胶为乙烯-丙烯-5-乙烯基-2-降冰片烯三元共聚物、乙烯-丙烯-双环戊二烯三元共聚物、乙烯-丙烯-1,4-己二烯三元共聚物中的一种及多种。
4.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述环氧树脂为端环氧基三(二甲基硅氧烷基)硅氧烷改性环氧树脂、二氯二苯基硅烷改性环氧树脂、聚氨酯改性环氧树脂中的一种及多种。
5.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述填料为滑石粉、硬脂酸钡、矿物纤维、碳酸钙、硅酸钙中的一种或几种。
6.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述发泡剂为三氯氟甲烷与发泡剂OBSH按照质量比2:1混合的混合物。
7.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述橡胶促进剂为纳米羟基磷灰石负载二氯化二硫。
8.根据权利要求7所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述纳米羟基磷灰石负载二氯化二硫的制备方法如下:将纳米羟基磷灰石10-15g分散在200mL石油醚溶剂中,搅拌过程中缓慢滴加S2Cl2,滴加总量为10-20mL,在62-75℃氮气保护下搅拌反应6-10h,反应产物过滤后用无水乙醇洗涤2-6次,真空干燥10-15h后得到纳米羟基磷灰石负载二氯化二硫。
9.根据权利要求1所述聚烯烃弹性体发泡柔性保冷材料,其特征在于,所述阻燃剂为聚磷酸铵、硼酸锌、偏硼酸钠、钛酸铝、全氟丁烷磺酸钾中的一种或几种。
10.权利要求1所述聚烯烃弹性体发泡柔性保冷材料的制备方法,其特征在于,按照如下步骤进行:
(1)按照重量份数,取聚烯烃弹性体30-40份、有机硅改性环氧树脂10-20份,加入至密炼机中,在130-150℃的温度下密炼10-25min;
(2)将步骤(1)得到的产物加入至开放式炼胶机中,加入填料40-60份、阻燃剂3-8份、发泡剂8-15份、橡胶促进剂1-3份,在20-30℃的温度下混炼5-8min;
(3)将步骤(2)制备的发泡材料混合物送入挤出机,在挤出机温度为20-50℃条件下挤出成型的片材;
(4)将步骤(3)制备的片材放置于130-170℃的烘箱中,硫化发泡50-60min后冷却,制成。
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