CN116239832A - 聚乙烯阻燃管 - Google Patents
聚乙烯阻燃管 Download PDFInfo
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- CN116239832A CN116239832A CN202310004739.9A CN202310004739A CN116239832A CN 116239832 A CN116239832 A CN 116239832A CN 202310004739 A CN202310004739 A CN 202310004739A CN 116239832 A CN116239832 A CN 116239832A
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- 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 title claims abstract description 104
- 239000003063 flame retardant Substances 0.000 title claims abstract description 104
- -1 Polyethylene Polymers 0.000 title claims abstract description 31
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 31
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 31
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 40
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 40
- 238000004132 cross linking Methods 0.000 claims abstract description 29
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 29
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 29
- 239000004611 light stabiliser Substances 0.000 claims abstract description 27
- 150000002978 peroxides Chemical class 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 21
- 239000010439 graphite Substances 0.000 claims abstract description 21
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910000000 metal hydroxide Inorganic materials 0.000 claims abstract description 15
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 15
- 150000008431 aliphatic amides Chemical class 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 73
- 230000004888 barrier function Effects 0.000 claims description 29
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 23
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 23
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 21
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 16
- 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 13
- RYUJRXVZSJCHDZ-UHFFFAOYSA-N 8-methylnonyl diphenyl phosphate Chemical compound C=1C=CC=CC=1OP(=O)(OCCCCCCCC(C)C)OC1=CC=CC=C1 RYUJRXVZSJCHDZ-UHFFFAOYSA-N 0.000 claims description 12
- 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 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 10
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 239000004840 adhesive resin Substances 0.000 claims description 7
- 229920006223 adhesive resin Polymers 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 239000010734 process oil Substances 0.000 claims 1
- 230000002195 synergetic effect Effects 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 22
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 16
- ZWNMRZQYWRLGMM-UHFFFAOYSA-N 2,5-dimethylhexane-2,5-diol Chemical group CC(C)(O)CCC(C)(C)O ZWNMRZQYWRLGMM-UHFFFAOYSA-N 0.000 description 15
- 239000012969 di-tertiary-butyl peroxide Substances 0.000 description 15
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- TZGPACAKMCUCKX-UHFFFAOYSA-N 2-hydroxyacetamide Chemical compound NC(=O)CO TZGPACAKMCUCKX-UHFFFAOYSA-N 0.000 description 7
- 239000005639 Lauric acid Substances 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009545 invasion Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004717 peroxide crosslinked polyethylene Substances 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
本发明公开了一种聚乙烯阻燃管,包括阻燃层,所述阻燃层原料按重量份数计包括HDPE 70‑80份、脂肪族酰胺1‑2.5份、阻燃剂3‑5份、可膨胀石墨3‑11.1份、金属氢氧化物2.5‑4.9份、造粒软化剂1‑1.5份、过氧化物0.5‑1份、交联助剂0.5‑3份、抗氧剂0.5‑1份和光稳定剂0.5‑1份。本申请中的聚乙烯阻燃管管材包括阻燃层,阻燃层以高密度聚乙烯为主料,配合添加阻燃剂、可膨胀石墨、金属氢氧化物、抗氧剂在脂肪族酰胺特殊的界面润滑帮助下均匀分散在体系中,同时阻燃剂与金属氢氧化物及可膨胀石墨具有协同作用,能显著提高管材的耐热与阻燃性能。
Description
技术领域
本发明涉及塑料管材技术领域,具体而言,涉及聚乙烯阻燃管。
背景技术
随着社会的发展,人们对聚乙烯材料的性能提出了更高的要求,单纯的聚乙烯材料已不能完全满足社会的需要,往往需要通过物理或者化学方法进行改性来提高其性能。而经过交联改性的聚乙烯可使其性能得到大幅度的改善,不仅显著提高了聚乙烯的力学性能、耐环境应力开裂性能、耐化学药品腐蚀性能、抗蠕变性和电性能等综合性能,而且非常明显地提高了耐温等级,可使聚乙烯的耐热温度从70℃提高到100℃以上,从而大大拓宽了聚乙烯的应用领域。
聚乙烯按照交联工艺可分为:过氧化物交联法PE-Xa、硅烷交联法PE-Xb、电子束交联法PE-Xc、偶氮交联法PE-Xd四种,交联聚乙烯管表面光洁度和柔韧性好,但抗光氧化和抗热氧老化的性能不高,受到紫外线照射或者氧气入侵时会加速老化,并入供水系统中,其中含有的氧化物质会腐蚀金属连接件,影响寿命;另外,聚乙烯作为高分子材料,存在易燃烧、阻燃性能欠佳的缺陷,从而限制了聚乙烯管材的应用。
鉴于此,特提出本发明。
发明内容
本发明的目的在于提供聚乙烯阻燃管。
本发明是这样实现的:
第一方面,本发明提供一种聚乙烯阻燃管,包括阻燃层,所述阻燃层原料按重量份数计包括HDPE 70-80份、脂肪族酰胺1-2.5份、阻燃剂3-5份、可膨胀石墨3-11.1份、金属氢氧化物2.5-4.9份、造粒软化剂1-1.5份、过氧化物0.5-1份、交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
在可选的实施方式中,所述阻燃层内设置有阻隔层,所述阻隔层原料包括乙烯-乙烯醇共聚物。
在可选的实施方式中,所述乙烯-乙烯醇共聚物中乙烯的摩尔分数为20%~45%,乙烯醇的摩尔分数为55%~80%。
在可选的实施方式中,所述阻隔层内设置有交联聚乙烯层,所述交联聚乙烯层原料按重量份数计包括HDPE 95-100份,过氧化物0.5-1份,交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
在可选的实施方式中,所述抗氧剂包括抗氧剂1010、抗氧剂1330、抗氧剂1076、过氧化二异丙苯、抗氧剂168中的至少一种。
在可选的实施方式中,所述阻燃层、阻隔层和交联聚乙烯层的厚度比为(47.5-49):2.8-5:(47.5-49)。
在可选的实施方式中,所述阻燃剂按重量份包括磷酸三甲苯酯2-7份、硼酸锌2-5份和异癸基二苯基磷酸酯1-3份。
在可选的实施方式中,所述金属氢氧化物包括氢氧化铝、氢氧化镁中的至少一种。
在可选的实施方式中,所述造粒软化剂为加工油。
在可选的实施方式中,所述阻燃层和阻隔层之间和/或阻隔层和交联聚乙烯层之间设置有粘接树脂粘合层,所述粘接树脂粘合层的厚度为管壁厚度的1-5%。
本发明具有以下有益效果:
本申请中的聚乙烯阻燃管管材包括阻燃层,阻燃层以高密度聚乙烯为主料,配合添加阻燃剂、可膨胀石墨、金属氢氧化物、抗氧剂在脂肪族酰胺特殊的界面润滑帮助下均匀分散在体系中,同时阻燃剂与金属氢氧化物及可膨胀石墨具有协同作用,能显著提高管材的耐热与阻燃性能。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本发明的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为本申请中聚乙烯阻燃管结构示意图。
图示:1-阻燃层;2-阻隔层;3-交联聚乙烯层。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将对本发明实施例中的技术方案进行清楚、完整地描述。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
本申请提供一种聚乙烯阻燃管,如图1所示,包括阻燃层1,所述阻燃层1原料按重量份数计包括HDPE 70-80份、脂肪族酰胺1-2.5份、阻燃剂3-5份、可膨胀石墨3-11.1份、金属氢氧化物2.5-4.9份、造粒软化剂1-1.5份、过氧化物0.5-1份、交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
阻燃层1以高密度聚乙烯为主料,配合添加脂肪族酰胺、阻燃剂、可膨胀石墨、金属氢氧化物、造粒软化剂、交联助剂、抗氧剂体系对其进行物理搅拌并改性造粒,其开机温度150-220℃左右。本实施例中的高密度聚乙烯指密度在0.941~0.965g/cm3的聚乙烯;本实施例中的过氧化物和交联助剂可以采用过氧化物交联法PE-Xa适用的过氧化物和交联助剂,光稳定剂可以采用聚乙烯管中普遍适用的光稳定剂,一些实施例中过氧化物采用过氧化二叔丁基DTBP,交联助剂采用2,5-二甲基-2,5-己二醇,光稳定剂采用光稳定剂770。
本发明中阻燃层1采用高密度聚乙烯为主料,通过添加抗氧剂、光稳定剂来提高管材的耐老化性能,同时过氧化物作为引发剂与交联剂使高密度聚乙烯分子产生稳定交联,极大的提高了管材的耐低高温性能。
阻燃层1以高密度聚乙烯为主料,配合添加阻燃剂、可膨胀石墨、金属氢氧化物和抗氧剂,在脂肪族酰胺特殊的界面润滑帮助下均匀分散在体系中,同时阻燃剂与金属氢氧化物及可膨胀石墨具有协同作用,能显著提高管材的耐热与阻燃性能。所谓协同作用是指可膨胀石墨在受热时沿着一定方向石墨片卷曲脱落,快速膨胀形成膨胀型炭层覆盖在材料表面隔绝了空气或可燃性气体与内部材料的接触,而阻燃剂和金属氢氧化物能稳定、快速的促进有机物碳化,使生成的碳黑皮膜与膨胀型炭层结合,形成蠕虫状的片层结构,这样的结构能够起到隔热、隔氧、抑烟的作用,不仅能够有效的提高管材的阻燃性能,同时也能防止内部材料的进一步降解。
本申请的一些实施例中,所述阻燃层1内设置有阻隔层2,所述阻隔层2原料包括乙烯-乙烯醇共聚物。
本申请的一些实施例中,所述乙烯-乙烯醇共聚物中乙烯的摩尔分数为20%~45%,乙烯醇的摩尔分数为55%~80%。
本实施例中的乙烯-乙烯醇共聚物其熔体质量流动速率为0.7~20g/10min,密度为1.13~1.21g/cm,熔点为158~189℃,拉伸断裂强度44MPa。EVOH中乙烯的含量(摩尔分数,下同)通常为20%~45%,乙烯醇含量55%~80%,一些优选实施例中乙烯-乙烯醇共聚物采用“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂。
本申请的一些实施例中,所述阻隔层2内设置有交联聚乙烯层3,所述交联聚乙烯层3原料按重量份数计包括HDPE 95-100份,过氧化物0.5-1份,交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
以高密度聚乙烯、抗氧剂体系、光稳定剂按照比例混合,进行物理搅拌并与有机过氧化物进行共挤反应的交联方法(过氧化物交联)进行制备。
本申请的一些实施例中,所述抗氧剂包括抗氧剂1010、抗氧剂1330、抗氧剂1076、过氧化二异丙苯、抗氧剂168中的至少一种。
本申请的一些实施例中,所述阻燃层1、阻隔层2和交联聚乙烯层3厚度比为(47.5-49):2.8-5:(47.5-49),综合考虑阻燃效果和对气体的阻隔效果。
本申请的一些实施例中,所述阻燃剂按重量份包括磷酸三甲苯酯2-7份、硼酸锌2-5份和异癸基二苯基磷酸酯1-3份,三者之间具有协同作用,相互配合效果优于单一组分。
本申请的一些实施例中,所述金属氢氧化物包括氢氧化铝、氢氧化镁中的至少一种。
本申请的一些实施例中,所述造粒软化剂为加工油。
本申请的一些实施例中,所述阻燃层1和阻隔层2之间和/或阻隔层2和交联聚乙烯层3之间设置有粘接树脂粘合层,所述粘接树脂粘合层的厚度为管壁厚度的1-5%,粘接树脂粘合层过薄会导致管材开裂。
本实施例采用多层共挤工艺,内层为交联聚乙烯层3,保证了管材的耐低高温性能与抗老化性;同时用粘结树脂粘接了高阻隔层2,保障了管材的抗渗透性能;用粘结树脂粘接阻燃层1,更加提升了管材的耐热与阻燃性能,使的管材在供水、供气方面更加安全。
以下结合实施例对本发明的特征和性能作进一步的详细描述。
实施例1
本实施例提供的一种高阻隔交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯98份,过氧化物DTBP 0.5份,交联助剂2,5-二甲基-2,5-己二醇1份,抗氧剂0.5份,光稳定剂770 0.8份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂6份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯80份,月桂酸乙二醇酰胺1份、阻燃剂3份,可膨胀石墨9份,氢氧化铝2.5份,加工油(造粒软化剂)1.5份,过氧化物DTBP0.5份,交联助剂2,5-二甲基-2,5-己二醇1份,抗氧剂0.5份,光稳定剂770 0.8份;
其中,所述阻燃剂由质量比5:2:3的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
实施例2
本实施例提供的一种高阻隔交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯97份,过氧化物DTBP 0.6份,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂体系0.7份,光稳定剂7700.7份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂5.6份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯75份,月桂酸乙二醇酰胺2份、阻燃剂4份,可膨胀石墨10.5份,氢氧化铝3份,加工油(造粒软化剂)1.5份,过氧化物DTBP0.6,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂0.7份,光稳定剂770 0.7份;
其中,所述阻燃剂由质量比7:2:1的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
实施例3
本实施例提供的一种高阻隔交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯96份,过氧化物DTBP 0.8份,交联助剂2,5-二甲基-2,5-己二醇2.2份,抗氧剂体系1份,光稳定剂7700.6份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂8份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯70份,月桂酸乙二醇酰胺2.5份、阻燃剂5份,可膨胀石墨11.1份,氢氧化铝4.9份,加工油(造粒软化剂)1.5份,过氧化物DTBP0.7份,交联助剂2,5-二甲基-2,5-己二醇2.2份,抗氧剂1份,光稳定剂770 0.6份;
其中,所述阻燃剂由质量比4:3:3的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
实施例4
本实施例提供的一种高阻隔交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯95份,过氧化物DTBP 1份,交联助剂2,5-二甲基-2,5-己二醇3份,抗氧剂体系1份,光稳定剂770 0.6份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂10份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯75份,月桂酸乙二醇酰胺2.5份、阻燃剂5份,可膨胀石墨7.5份,氢氧化铝3.5份,加工油(造粒软化剂)1.5份,过氧化物DTBP1份,交联助剂2,5-二甲基-2,5-己二醇3份,抗氧剂1份,光稳定剂770 0.6份;
其中,所述阻燃剂由质量比4:3:3的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
对比例1(未添加阻隔层2)
交联聚乙烯管其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯97份,过氧化物DTBP0.6份,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂0.7份,光稳定剂7700.6份。
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯90份,月桂酸乙二醇酰胺2份,氢氧化铝3份,加工油(造粒软化剂)1.5份,过氧化物DTBP 0.6,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂0.7份,光稳定剂770 0.6份;
其中,所述阻燃剂由质量比4:4:2的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
对比例2
交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯97份,过氧化物DTBP 0.6份,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂体系0.7份,光稳定剂770 0.6份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂10份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯75份,月桂酸乙二醇酰胺2份,阻燃剂14.5份,氢氧化铝3份,加工油(造粒软化剂)1.5份,过氧化物DTBP0.6,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂0.7份,光稳定剂770 0.6份;
其中,所述阻燃剂由质量比4:3:3的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
对比例3
本实施例提供的一种高阻隔交联聚乙烯阻燃管材,其交联聚乙烯层3原料按重量份包括以下组分:高密度聚乙烯97份,过氧化物DTBP 0.6份,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂体系0.7份,光稳定剂7700.6份;
其阻隔层原料按照重量份包括“索阿诺尔TM”A4412HB牌号的乙烯-乙烯醇共聚树脂7.2份;
其阻燃层1原料按照重量份包括以下组分:高密度聚乙烯75份,月桂酸乙二醇酰胺2份,可膨胀石墨14.5份,氢氧化铝3份,加工油(造粒软化剂)1.5份,过氧化物DTBP0.6,交联助剂2,5-二甲基-2,5-己二醇1.7份,抗氧剂0.7份,光稳定剂770 0.6份;
其中,所述阻燃剂由质量比4:3:3的磷酸三甲苯酯(TCP)、硼酸锌、异癸基二苯基磷酸酯组成;所述抗氧剂由质量比2:1的抗氧剂1010和抗氧剂1076组成。
对比例4
本对比例与实施例3的区别仅在于,所述阻燃剂由质量比4:3的磷酸三甲苯酯(TCP)、硼酸锌组成。
对比例5
本对比例与实施例3的区别仅在于,所述阻燃剂由质量比3:3的硼酸锌和异癸基二苯基磷酸酯组成。
对比例6
本对比例与实施例3的区别仅在于,所述阻燃剂由质量比4:3的磷酸三甲苯酯(TCP)和异癸基二苯基磷酸酯组成。
对比例7
本对比例与实施例3的区别仅在于,所述阻燃剂按重量份由4份十溴联苯醚、3份硼酸锌组成。
以上测试结果显示,当阻燃剂和可膨胀石墨等共同使用时,管材的阻燃性能优于单一的阻燃剂或可膨胀石墨等使用效果,选用本发明实施例范围内的试验条件,制备出的高阻隔交联聚乙烯阻燃管,具有优越的阻隔性能和阻燃性能;同时阻燃剂与可膨胀石墨添加量的过多过少均会对管材的力学性能产生一定影响,选择阻燃剂与可膨胀石墨的合适配比,能够在不降低力学性能的条件下提升管材的阻燃性能。
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,对于本领域的技术人员来说,本发明可以有各种更改和变化。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。
Claims (10)
1.一种聚乙烯阻燃管,其特征在于,包括阻燃层,所述阻燃层原料按重量份数计包括HDPE 70-80份、脂肪族酰胺1-2.5份、阻燃剂3-5份、可膨胀石墨3-11.1份、金属氢氧化物2.5-4.9份、造粒软化剂1-1.5份、过氧化物0.5-1份、交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
2.根据权利要求1所述的聚乙烯阻燃管,其特征在于,所述阻燃层内设置有阻隔层,所述阻隔层原料包括乙烯-乙烯醇共聚物。
3.根据权利要求2所述的聚乙烯阻燃管,其特征在于,所述乙烯-乙烯醇共聚物中乙烯的摩尔分数为20%~45%,乙烯醇的摩尔分数为55%~80%。
4.根据权利要求2所述的聚乙烯阻燃管,其特征在于,所述阻隔层内设置有交联聚乙烯层,所述交联聚乙烯层原料按重量份数计包括HDPE 95-100份,过氧化物0.5-1份,交联助剂0.5-3份、抗氧剂0.5-1份和光稳定剂0.5-1份。
5.根据权利要求1-4任意一项所述的聚乙烯阻燃管,其特征在于,所述抗氧剂包括抗氧剂1010、抗氧剂1330、抗氧剂1076、过氧化二异丙苯、抗氧剂168中的至少一种。
6.根据权利要求1-4任意一项所述的聚乙烯阻燃管,其特征在于,所述阻燃层、阻隔层和交联聚乙烯层的厚度比为(47.5-49):2.8-5:(47.5-49)。
7.根据权利要求1所述的聚乙烯阻燃管,其特征在于,所述阻燃剂按重量份包括磷酸三甲苯酯2-7份、硼酸锌2-5份和异癸基二苯基磷酸酯1-3份。
8.根据权利要求1所述的聚乙烯阻燃管,其特征在于,所述金属氢氧化物包括氢氧化铝、氢氧化镁中的至少一种。
9.根据权利要求1所述的聚乙烯阻燃管,其特征在于,所述造粒软化剂为加工油。
10.根据权利要求1所述的聚乙烯阻燃管,其特征在于,所述阻燃层和阻隔层之间和/或阻隔层和交联聚乙烯层之间设置有粘接树脂粘合层,所述粘接树脂粘合层的厚度为管壁厚度的1-5%。
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