CN105086064A - 一种epm复合材料及其制备方法 - Google Patents
一种epm复合材料及其制备方法 Download PDFInfo
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- CN105086064A CN105086064A CN201510492458.8A CN201510492458A CN105086064A CN 105086064 A CN105086064 A CN 105086064A CN 201510492458 A CN201510492458 A CN 201510492458A CN 105086064 A CN105086064 A CN 105086064A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 title abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 239000007822 coupling agent Substances 0.000 claims abstract description 14
- 101000615541 Canis lupus familiaris E3 ubiquitin-protein ligase Mdm2 Proteins 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims description 56
- -1 Polyethylene Polymers 0.000 claims description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 19
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- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000012745 toughening agent Substances 0.000 claims description 10
- MEIRRNXMZYDVDW-MQQKCMAXSA-N (2E,4E)-2,4-hexadien-1-ol Chemical compound C\C=C\C=C\CO MEIRRNXMZYDVDW-MQQKCMAXSA-N 0.000 claims description 9
- 238000007323 disproportionation reaction Methods 0.000 claims description 9
- 150000004756 silanes Chemical class 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 239000012874 anionic emulsifier Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000003995 emulsifying agent Substances 0.000 claims description 7
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 5
- 239000001993 wax Substances 0.000 claims description 5
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 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 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000000600 sorbitol Substances 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 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 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
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- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 239000004579 marble Substances 0.000 claims description 3
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- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
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- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
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- 239000002184 metal Substances 0.000 description 5
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- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
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- 230000015556 catabolic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- 230000002265 prevention Effects 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 1
- 241001614291 Anoplistes Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JJJFUHOGVZWXNQ-UHFFFAOYSA-N enbucrilate Chemical compound CCCCOC(=O)C(=C)C#N JJJFUHOGVZWXNQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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Abstract
本发明EPM复合材料,由包括下述重量百分比原料的物质共混制成:30-94%CA、5-60%补强剂、0-40%增强剂、0.1-1%CDM2歧化因子、0.1-1%偶联剂、0.1-1%抗氧剂、0.1-1%防老剂、0.1-1%紫外线吸收剂、0.1-1%润滑剂、0.1-1%三乙基铝;具有配方简单,成本低、防火、强度高、韧性好、不易变形、油漆附着力好的优点。EPM复合材料的制备方法:将混合均匀的补强剂和偶联剂,混合均匀的除CA、CDM2歧化因子、抗氧剂、防老剂、紫外线吸收剂、润滑剂和三乙基铝均加入双螺杆挤出机中,从侧向加入增强剂,挤出造粒,即得粒状EPM复合材料;具有工序简单、操作简便的优点。
Description
技术领域
本发明涉及复合材料技术领域,具体涉及一种EPM复合材料及其制备方法。
背景技术
EPM复合材料,EPM(英文全称:polymerofethyleneorpropylene)指乙烯或丙烯聚合物,EPM复合材料是指乙烯聚合物或丙烯聚合物制得的复合材料,现有EPM复合材料,具有良好的化学稳定性和可加工性,能够根据需要成型出中空制品、管板材、日用品、结构件,广泛应用于室内外。
传统的结构件多采用金属材料,如铁、铝、锌合金等,为了防止金属结构件在使用过程中锈蚀及美观的目的,通常在金属结构外涂覆一层油漆,不仅成本高,同时有些场合使用金属的导电性,容易造成触电,安全性低。为了克服金属材料的缺陷,现有技术通常采用包括乙烯聚合物和丙烯聚合物在内的树脂材料,代替金属材料,但是树脂材料不防火、易变形、表面张力小、油漆附着性差、强度差,为改性树脂添加的一些助剂在使用过程中还容易进入周围环境中,环境友好性差。
结构件中的现有灯具配件,如灯具固定装置(如底座、固定支架)、灯具防护装置(如罩壳),灯具装饰件等多采用金属件,不仅成本高,而且易锈蚀,使用效果不好,不美观。
发明内容
本发明的任务一是提供一种配方简单,成本低、防火、强度高、韧性好、不易变形、油漆附着力好的EPM复合材料;本发明的任务二是提供一种工序简单、操作简便的制备EPM复合材料的方法。
本发明通过下述技术方案来实现:
一种EPM复合材料,其特征在于:其由包括下述重量百分比原料的物质共混制成:
CA:30-94%
补强剂:5-60%
增强剂:0-40%
CDM2歧化因子:0.1-1%
偶联剂:0.1-1%
抗氧剂:0.1-1%
防老剂:0.1-1%
紫外线吸收剂:0.1-1%
润滑剂:0.1-1%
三乙基铝:0.1-1%
其中,原料CA由下述重量百分比原料的物质共混制成:
聚乙烯或聚丙烯:69-95%
聚烯烃弹性体POE:4-30%
山梨醇刚性因子:0.3-1%
其中,原料CDM2歧化因子指四(3,5-二叔丁基-4-羟基)苯丙酸季戊四醇酯。
POE为Polyolefinelastomer的英文缩写,为采用茂金属催化剂合成的聚烯烃热塑性弹性体:乙烯—辛烯共聚物。
所述聚乙烯可为高密度聚乙烯或低密度聚乙烯。
优选所述山梨醇刚性因子为二苄叉山梨醇。
所述补强剂可为纳米级矿物粉,如纳米滑石粉、纳米硅钙粉、纳米碳酸钙、钠米大理石粉、纳米硫酸钡中的任意一种或多种。
所述增强剂可为增强纤维,优选为二次拉伸的玻璃纤维。
优选所述抗氧剂选自抗氧剂KY7910和异型抗氧剂1010中的一种以上。
优选所述防老剂选自防老剂100H。
所述紫外线吸收剂可为紫外线吸收剂UV531,优选所述偶联剂为硅烷偶联剂或通过如下步骤制得的改性硅烷偶联剂A:
1)分别取重量百分比为75-85%的异丙醇和15-25%的硅烷偶联剂KH-570,且将所述异丙醇控制在常压、83-86℃下,边搅拌边加入所述硅烷偶联剂KH-570,反应25-40min,得到异丙氧基取代部分甲氧基的改性KH-570;
2)取重量百分比为85-95%步骤1)制得的异丙氧基取代部分甲氧基的改性KH-570,在常压下,恒温在58-63℃,边搅拌边加入重量百分比为2.5-7.5%的八甲基环四硅氧烷与2.5-7.5%的丙烯酸酯类单体(如丙烯酸甲酯、丙烯酸乙酯、丙烯酸正丁脂、丙烯酸异丁脂、丙烯酸-2-乙基己酯、丙烯酸-2-羟基丙酯等),乳液聚合得到改性硅烷偶联剂A。
优选所述偶联剂为硅烷偶联剂,或通过如下步骤制得的改性硅烷偶联剂A:
1)取重量百分比为80%的异丙醇,常压恒温在85℃,边搅拌边加入重量百分比为20%的硅烷偶联剂KH-570,反应30min,得到异丙氧基取代部分甲氧基的改性KH-570;
2)取重量百分比为90%的步骤1)制得的异丙氧基取代部分甲氧基的改性KH-570,常压恒温在60℃,边搅拌边加入重量百分比为5%的八甲基环四硅氧烷与5%的丙烯酸酯类单体,乳液聚合得到改性硅烷偶联剂A。
所述润滑剂为通过下述方法制得的微晶蜡润滑剂E蜡:取500g微晶蜡于恒温锅中熔化,待微晶蜡完全熔化且能自由流动时,开始持续搅拌,同时在10min内加入溶解有30-40g阴离子乳化剂的175ml水,接着,再加入15-30g非离子乳化剂,直到形成均质体,停止搅拌,得到微晶蜡润滑剂E蜡;反应过程的温度维持在110-115℃。所述阴离子乳化剂可为十二烷基硫酸纳。所述非离子乳化剂可为tween80,所述持续搅拌的搅拌速度为800-1200r/min。
前述EPM复合材料的制备方法,其特征在于:其包括如下步骤:
1)将搅拌机,恒温在70-90℃,先加入所述补强剂,再边搅拌边加入所述偶联剂,混合均匀,放出混合物;
2)将所述CA、所述CDM2歧化因子、所述抗氧剂、所述防老剂、所述紫外线吸收剂、所述润滑剂和所述三乙基铝加入搅拌机,常温共混均匀,放出混合物;
3)将步骤1)和步骤2)搅拌机中放出的混合物,放入双螺杆挤出机中,同时从侧向加入所述增强剂,共同挤出造粒,即得粒状EPM复合材料;
其中挤出机温度控制在180-215℃,螺杆转速为370-400r/min。
本发明具有以下优点:其EPM复合材料配方简单,成本低、防火、强度高、韧性好、不易变形、油漆附着力好;制备EPM复合材料的方法工序简单、操作简便。
附图说明
图1是本发明EPM复合材料制成的灯具底座,进行耐高温测试前后的对照图。
具体实施方式
实施例1:
一种EPM复合材料,由包括下述重量百分比原料的物质共混制成:
CA:30-94%
补强剂:5-60%
增强剂:0-40%
CDM2歧化因子:0.1-1%
偶联剂:0.1-1%
抗氧剂:0.1-1%
防老剂:0.1-1%
紫外线吸收剂:0.1-1%
润滑剂:0.1-1%
三乙基铝:0.1-1%;
其中,原料CA由下述重量百分比原料的物质共混制成:
聚乙烯或聚丙烯:69-95%
聚烯烃弹性体POE:4-30%
山梨醇刚性因子:0.3-1%;
其中,原料CDM2歧化因子指四(3,5-二叔丁基-4-羟基)苯丙酸季戊四醇酯。
其中聚乙烯或聚丙烯、聚烯烃弹性体POE和山梨醇刚性因子的配比可为69%:30%:1%、95%:4%:1%、95%:4.7%:0.3%、80%:19%:1%或75%:24.5%:0.5%等。
其中,聚乙烯可为高密度聚乙烯,其制得的复合材料具有较高的硬度,也可为低密度聚乙烯,其制得的复合材料具有较好的韧性;
优选聚丙烯通过液相本体法制得:丙烯单体以液相状态在釜式反应器中进行液相本体聚合,乙烯、丙烯在流化床反应器中进行气相共聚。此方法制得的聚丙烯相较于一般聚丙烯具有更高的纯度,制得的复合材料的具有更好的力学性能。
其中,山梨醇刚性因子可为苯亚甲基山梨醇类化合物,如二苄叉山梨醇、二亚(3,4-二甲基)苄基山梨醇,此原料的添加能够显著提高复合材料的刚性,增加硬度,制得的复合材料能够应用于室内外。
其中,补强剂可为矿物粉,如滑石粉、硅钙粉、碳酸钙、大理石粉和硫酸钡,优选矿物粉的尺寸为纳米级,硫酸钡一方面可以起到补强的作用,另一方面由于其重量重,含硫酸钡的复合材料重量重,制成灯具配件是具有金属质感,根据需要在灯具配件上上漆,即能达到金属上漆后的质感;
其中,增强剂为增强纤维,优选为玻璃纤维,尤其是经过二次拉伸后形成的细玻璃纤维,提高复合材料的强度更显著;
其中,抗氧剂可为选自抗氧剂KY7910和异型抗氧剂1010中的一种以上;
其中,防老剂可为选自防老剂100H;
其中,紫外线吸收剂可为紫外线吸收剂UV531。
其中,偶联剂可为常规硅烷偶联剂,优选为通过如下步骤制得的改性硅烷偶联剂A:
1)分别取重量百分比为75-85%的异丙醇和15-25%的硅烷偶联剂KH-570,且将异丙醇控制在常压、83-86℃下,边搅拌边加入硅烷偶联剂KH-570,反应25-40min,得到异丙氧基取代部分甲氧基的改性KH-570;
2)取重量百分比为85-95%步骤1)制得的异丙氧基取代部分甲氧基的改性KH-570,在常压下,恒温在58-63℃,边搅拌边加入重量百分比为2.5-7.5%的八甲基环四硅氧烷与2.5-7.5%的丙烯酸酯类单体,乳液聚合得到改性硅烷偶联剂A。
该改性硅烷偶联剂A添加到复合材料中,一方面能够起到增加材料韧性的作用,无需额外增加增韧剂,能够提高材料的耐酸碱性,使其能够代替金属应用于室外,另外一方面又缩短材料成型时间,提高生产效率。
其中润滑剂可为常规微晶蜡润滑剂,优选为通过下述方法制得的微晶蜡润滑剂E蜡:取500g微晶蜡于恒温锅中熔化,待微晶蜡完全熔化且能自由流动时,开始持续搅拌,同时在10min内加入溶解有30-40g阴离子乳化剂的175ml水,接着,再加入15-30g非离子乳化剂,直到形成均质体,停止搅拌,反应过程的温度维持在110-115℃。其中阴离子乳化剂可为十二烷基硫酸纳,非离子乳化剂可为tween80,持续搅拌的搅拌速度为800-1200r/min。该微晶蜡润滑剂E蜡中含有非离子乳化剂和阴离子乳化剂,将其添加到复合材料中,能够与其它原料中的极性、非极性结构相互作用,起到更好的润滑作用。
本发明EPM复合材料能够广泛应用于室内外结构件、如灯具的固定底座、外防护罩等。
实施例2
EPM复合材料的制备方法,采用实施例1中述及的原料和配比,包括如下步骤:
1)将搅拌机,恒温在70-90℃,先加入补强剂,再边搅拌边加入偶联剂,混合均匀,放出混合物;可在搅拌速度为500r/min时,搅拌5min以使补强剂和偶联剂混合均匀;
2)将CA、CDM2歧化因子、抗氧剂、防老剂、紫外线吸收剂、润滑剂和三乙基铝加入搅拌机,常温共混均匀,放出混合物;可在搅拌速度为500r/min时,搅拌5min以使步骤2)中的原料混合均匀;
3)将步骤1)和步骤2)搅拌机中放出的混合物,放入双螺杆挤出机中,同时从侧向加入增强剂,共同挤出造粒,即得粒状EPM复合材料;
其中挤出机温度控制在180-215℃,螺杆转速为370-400r/min。
先将补强剂与偶联剂混合均匀,有利于补强剂均匀分散在复合材料中,提升复合材料强度。
实施例3
选择几组具体原料配比,采用实施例2的方法,制备实施例1的EPM复合材料,原料重量百分比如下表1:
表1
其中方案1-4中CA由聚乙烯、聚烯烃弹性体POE和山梨醇刚性因子共混制成,得到的是乙烯聚合物制得的EPM复合材料,方案5-9中CA由聚丙烯、聚烯烃弹性体POE和山梨醇刚性因子共混制成,得到的是丙烯聚合物制得的EPM复合材料。
实施例4
利用实施例3中制得的EPM复合材料制备实验样品,并对其性能进行测试:
(1)冲击强度
按ASTMD256标准测试该EPM复合材料的缺口冲击强度,数值达到22kJ/m2以上,说明该样品有较高的抗冲击性。
(2)弯曲强度
按ASTMD790标准测试该EPM复合材料的弯曲强度,数值>65MPa,说明该样品有较高的刚性和硬度。
(3)耐高温性能
将EPM复合材料制作成灯具底座,进行如下耐高温测试:120℃放置24h,耐高温测试前后灯具底座的内外侧的照片如附图1所示,从图1中可以看出,耐高温测试后,内外表面均没有明显变化,说明本发明的EPM复合材料具有优异耐高温性能。
(4)抗紫外老化性能
将EPM复合材料制作成灯具固定板,采用ASTMG154-06,ISO105-A02:1993/Cor2:2005进行如下紫外线老化测试:
灯型:D65标准灯
爆光周期:ASTMG154cycle18hUVat(60±3)℃BPT,0.89W/(m2.nm)340nm
4hcondensationat(50±3)℃BPT
爆光时间:500h
紫外线老化测试得到的灰度值为4-5,鉴于D65标准灯为测试用灯时,5为最佳,1为最差,本发明的灰度值为4-5,说明本发明1EPM复合材料具有很好的抗紫外老化性能。
(5)附着力
将EPM复合材料制作成灯具固定板,采用ASTMD3359-09methodA,进行附着力测试,
测试条件为:
Tape:Permacel99
测得附着力4A,鉴于ASTMD3359-09methodA方法测试附着力时,5A为最佳,0A为最差,本发明的附着力为4A,说明本发明1EPM复合材料具有很好的附着力,容易上漆。
(6)耐候性
将EPM复合材料制作成灯具固定板,采用ASTMB117-07a进行盐雾测试,
测试条件为:
溶液浓度:(5±1)%NaCl(m/m)
室温:(35±2)℃
盐溶液体积:(1.0~2.0)ml/(80cm2.h)
溶液在25℃时的PH值:6.5~7.2
测试时间:500h
测得外观等级为10,即为最高外观等级,说明本发明EPM复合材料具有良好的耐盐雾性能,具有良好的耐候性,能够应用于室外,甚至海边等场合,既可用于室内,也可用于室外,如沿海环境也可适用,可用作桌、椅、广告架、灯具等结构件。
(7)耐久性、耐冲击性及气密性测试
测试结果如下表2:
表2
通过表2中的数据可知,本发明EPM复合材料具有良好的耐久性,使用寿命越长,具有良好的耐冲击性,能够替代金属用于结构件,具有良好的气密性,能够用于保温结构件、隔热结构件、包装结构等。
(8)电击穿强度
按ASTMD149标准测试该EPM复合材料的电击穿强度,数值>20KV/mm,说明本发明EPM复合材料具有非常好的耐电性能,使用安全,能够用于带电结构的结构件,适于在户外使用。
(9)体积电阻率
按ASTMD257标准测试该EPM复合材料的体积电阻率,数值>1016Ω㎝,说明本发明EPM复合材料具有非常好的电绝缘性,使用安全,能够用于带电结构的结构件(如灯具固定装置、灯具防护外罩、灯具装饰罩),适于在户外使用。
Claims (10)
1.一种EPM复合材料,其特征在于:该EPM复合材料由包括下述重量百分比原料的物质共混制成:
CA:30-94%
补强剂:5-60%
增强剂:0-40%
CDM2歧化因子:0.1-1%
偶联剂:0.1-1%
抗氧剂:0.1-1%
防老剂:0.1-1%
紫外线吸收剂:0.1-1%
润滑剂:0.1-1%
三乙基铝:0.1-1%;
其中,原料CA由下述重量百分比原料的物质共混制成:
聚乙烯或聚丙烯:69-95%
聚烯烃弹性体POE:4-30%
山梨醇刚性因子:0.3-1%;
其中,原料CDM2歧化因子指四(3,5-二叔丁基-4-羟基)苯丙酸季戊四醇酯。
2.根据权利要求1所述的EPM复合材料,其特征在于:所述聚乙烯为高密度聚乙烯或低密度聚乙烯。
3.根据权利要求1所述的EPM复合材料,其特征在于:所述山梨醇刚性因子为二苄叉山梨醇。
4.根据权利要求1所述的EPM复合材料,其特征在于:所述补强剂为纳米级矿物粉;所述增强剂为增强纤维。
5.根据权利要求4所述的EPM复合材料,其特征在于:所述补强剂为纳米滑石粉、纳米硅钙粉、纳米碳酸钙、纳米大理石粉和纳米硫酸钡中的一种以上;所述增强剂为二次拉伸的玻璃纤维。
6.根据权利要求1所述的EPM复合材料,其特征在于:所述抗氧剂选自抗氧剂KY7910和异型抗氧剂1010中的一种以上;所述防老剂选自防老剂100H;所述紫外线吸收剂为紫外线吸收剂UV531。
7.根据权利要求1所述的EPM复合材料,其特征在于:所述偶联剂为硅烷偶联剂或通过如下步骤制得的改性硅烷偶联剂A:
1)分别取重量百分比为75-85%的异丙醇和15-25%的硅烷偶联剂KH-570,且将所述异丙醇控制在常压、83-86℃下,边搅拌边加入所述硅烷偶联剂KH-570,反应25-40min,得到异丙氧基取代部分甲氧基的改性KH-570;
2)取重量百分比为85-95%步骤1)制得的异丙氧基取代部分甲氧基的改性KH-570,在常压下,恒温在58-63℃,边搅拌边加入重量百分比为2.5-7.5%的八甲基环四硅氧烷与2.5-7.5%的丙烯酸酯类单体,乳液聚合得到改性硅烷偶联剂A。
8.根据权利要求1所述的EPM复合材料,其特征在于:所述润滑剂为通过下述方法制得的微晶蜡润滑剂E蜡:取500g微晶蜡于恒温锅中熔化,待微晶蜡完全熔化且能自由流动时,开始持续搅拌,同时在10min内加入溶解有30-40g阴离子乳化剂的175ml水,接着,再加入15-30g非离子乳化剂,直到形成均质体,停止搅拌,反应过程的温度维持在110-115℃。
9.根据权利要求8所述的EPM复合材料,其特征在于:所述阴离子乳化剂为十二烷基硫酸纳,所述非离子乳化剂为tween80,所述持续搅拌的搅拌速度为800-1200r/min。
10.根权利要求1-9中任一权利要求所述的EPM复合材料的制备方法,其特征在于:其包括如下步骤:
1)将搅拌机,恒温在70-90℃,先加入所述补强剂,再边搅拌边加入所述偶联剂,混合均匀,放出混合物;
2)将所述CA、所述CDM2歧化因子、所述抗氧剂、所述防老剂、所述紫外线吸收剂、所述润滑剂和所述三乙基铝加入搅拌机,常温共混均匀,放出混合物;
3)将步骤1)和步骤2)搅拌机中放出的混合物,放入双螺杆挤出机中,同时从侧向加入所述增强剂,共同挤出造粒,即得粒状EPM复合材料;
其中挤出机温度控制在180-215℃,螺杆转速为370-400r/min。
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