CN111941978A - 一种高强度hdpe膜制备方法 - Google Patents
一种高强度hdpe膜制备方法 Download PDFInfo
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- 229920006262 high density polyethylene film Polymers 0.000 title claims abstract description 52
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- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical group [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 48
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- 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 5
- 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 5
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Abstract
本发明提供一种高强度HDPE膜制备方法,由以下原料制备而成:所述原料按重量分数比为:HDPE50‑70份、LLDPE20‑30份、增韧剂5‑10份、抗氧剂2‑3份、紫外线吸收剂3‑5份、相容剂3‑5份、外层1份、中层1份和内层1份,所述外层由35~45%的MLLDPE1018MF,45~55%的MLLDPE1018MA组成,所述中层由55~65%的弹性体MX021、25~35%的VM6102和0.5~5%的功能母粒TC750组成。本发明提供的一种高强度HDPE膜制备方法具有将HDPE、LLDPE、增韧剂以及增强剂等相混合制得的HDPE料,在低温以及高温条件下仍能具备优异的韧性与机械强度,使其具备更广的应用范围,再通过HDPE膜选用三层不同的材料并通过调节每层的比例,使制得的膜柔韧性好,具有高的拉伸强度,不易变形,制得的HDPE膜的拉伸强度在90MPa以上,收缩温度在190°C以上。
Description
技术领域
本发明涉及HDPE膜领域,尤其涉及一种高强度HDPE膜制备方法。
背景技术
HDPE膜是由HDPE构成的塑料卷材,其HDPE是一种结晶度高、非极性的热塑性树脂。原态HDPE的外表呈乳白色,在微薄截面呈一定程度的半透明状。PE具有优良的耐大多数生活和工业用化学品的特性。某些种类的化学品会产生化学腐蚀,例如腐蚀性氧化剂(浓硝酸),芳香烃(二甲苯)和卤化烃(四氯化碳)。该聚合物不吸湿并具有好的防水蒸汽性。HDPE具有很好的防腐性能、电性能、防潮性能、防渗漏性能、拉伸强度高,所以是很适用于电线电缆、工程防渗、养殖防渗、油罐防渗、地下室防渗、人工湖防渗等领域。HDPE膜具有极好的抗冲击性,故在常温甚至在-40F低温度下均如此。HDPE膜是高分子聚合物无毒、无味、无臭的白色颗粒,熔点约为110℃-130℃,相对密度0.918—0.965;具有良好的耐热性和耐寒性。化学稳定性好,具有较高的刚性和韧性,机械强度好,耐环境应力开裂与耐撕裂强度性能好,随着密度的上升,机械性能和阻隔性能会相应提高,耐热,和抗拉强度也更高;可耐酸、碱、有机溶剂等腐蚀;
但现有的HDPE膜在-70°C甚至更低温度以及150°C甚至更高温度的环境下,其韧性以及机械强度已经难以满足实际需求。
因此,有必要提供一种高强度HDPE膜制备方法解决上述技术问题。
发明内容
本发明提供一种高强度HDPE膜制备方法,解决了现有的HDPE膜在-70°C甚至更低温度以及150°C甚至更高温度的环境下,其韧性以及机械强度已经难以满足实际需求的问题。
为解决上述技术问题,本发明提供的一种高强度HDPE膜,由以下原料制备而成:
所述原料按重量分数比为:HDPE50-70份、LLDPE20-30份、增韧剂5-10份、抗氧剂2-3份、紫外线吸收剂3-5份、相容剂3-5份、外层1份、中层1份和内层1份。
优选的,所述外层由35~45%的MLLDPE1018MF,45~55%的MLLDPE1018MA组成。
优选的,所述中层由55~65%的弹性体MX021、25~35%的VM6102和0.5~5%的功能母粒TC750组成。
优选的,所述内层由25~35%的MLLDPE1018MA、15~35%的MLLDPE1018MF、15~35%的MDPE5401和1~5%的HDPE-F15组成。
优选的,所述外层重量占膜总重的10~20%,所述中层重量占膜总重的60~70%,所述内层重量占膜总重的10~20%。
优选的,所述增韧剂为EVA和/或POE,所述抗氧剂为抗氧化剂1010和抗氧化剂168的复配物,所述紫外线吸收剂为紫外线吸收剂770和紫外线吸收剂2020的复配物,所述相容剂为HDPE-GMAH。
优选的,所述增强剂为改性钽丝,所述改性钽丝是以纳米钽丝为芯线,外包裹一层玻璃纤维,所述改性钽丝的芯线直径在90~130微米,所述改性钽丝的直径在110~160微米。
本发明还提供了一种高强度HDPE膜制备方法,包括以下步骤:
S1、混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物;
S2、配料:将步骤S1中制备的外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料;
S3、吹膜:将步骤S2中配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用;
S4、将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米;
S5、将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物;
S6、将S5中的混合物与S4中的改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用;
S7、最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜。
优选的,在S7中,所述共挤吹塑过程为,将外层、中层、内层加入三层共挤吹塑薄膜机的外、中、内层料斗中,再将HDPE料添加至外、中、内层料斗中,加热并逐渐升温,外层、中层、内层的挤出温度控制在140~160°C,经挤出吹塑成型制得高强度HDPE膜。
与相关技术相比较,本发明提供的一种高强度HDPE膜制备方法具有如下有益效果:
本发明提供一种高强度HDPE膜制备方法,
1、本发明通过将HDPE、LLDPE、增韧剂以及增强剂等相混合制得的HDPE料,在低温以及高温条件下仍能具备优异的韧性与机械强度,使其具备更广的应用范围;
2、本发明通过HDPE膜选用三层不同的材料并通过调节每层的比例,使制得的膜柔韧性好,具有高的拉伸强度,不易变形,制得的HDPE膜的拉伸强度在90MPa以上,收缩温度在190°C以上。
附图说明
图1为本发明提供的一种高强度HDPE膜制备方法的流程图。
具体实施方式
下面结合附图和实施方式对本发明作进一步说明。
实施例一
请结合参阅图1,其中图1为本发明提供的一种高强度HDPE膜制备方法的流程图。一种高强度HDPE膜,由以下原料制备而成:
所述原料按重量分数比为:HDPE50份、LLDPE20份、增韧剂5份、抗氧剂2份、紫外线吸收剂3份、相容剂3份、外层1份、中层1份和内层1份。
所述外层由35%的MLLDPE1018MF,45%的MLLDPE1018MA组成。
所述中层由55%的弹性体MX021、25%的VM6102和0.5%的功能母粒TC750组成。
所述内层由25%的MLLDPE1018MA、15%的MLLDPE1018MF、15%的MDPE5401和1%的HDPE-F15组成。
所述外层重量占膜总重的10%,所述中层重量占膜总重的60%,所述内层重量占膜总重的10%。
所述增韧剂为EVA和/或POE,所述抗氧剂为抗氧化剂1010和抗氧化剂168的复配物,所述紫外线吸收剂为紫外线吸收剂770和紫外线吸收剂2020的复配物,所述相容剂为HDPE-GMAH。
所述增强剂为改性钽丝,所述改性钽丝是以纳米钽丝为芯线,外包裹一层玻璃纤维,所述改性钽丝的芯线直径在90微米,所述改性钽丝的直径在110微米。
本发明还提供了一种高强度HDPE膜制备方法,包括以下步骤:
S1、混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物;
S2、配料:将步骤S1 中制备的外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料;
S3、吹膜:将步骤S2中配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用;
S4、将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米;
S5、将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物;
S6、将S5中的混合物与S4中的改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用;
S7、最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜。
在S7中,所述共挤吹塑过程为,将外层、中层、内层加入三层共挤吹塑薄膜机的外、中、内层料斗中,再将HDPE料添加至外、中、内层料斗中,加热并逐渐升温,外层、中层、内层的挤出温度控制在140°C,经挤出吹塑成型制得高强度HDPE膜。
实施例二
本发明还提供了一种技术方案,请结合参阅图1,其中图1为本发明提供的一种高强度HDPE膜制备方法的流程图。一种高强度HDPE膜,与实施例一不同的是,由以下原料制备而成:
所述原料按重量分数比为:HDPE60份、LLDPE25份、增韧剂8份、抗氧剂2.5份、紫外线吸收剂4份、相容剂4份、外层1份、中层1份和内层1份。
所述外层由40%的MLLDPE1018MF,50%的MLLDPE1018MA组成。
所述中层由60%的弹性体MX021、30%的VM6102和3%的功能母粒TC750组成。
所述内层由30%的MLLDPE1018MA、25%的MLLDPE1018MF、25%的MDPE5401和3%的HDPE-F15组成。
所述外层重量占膜总重的10~20%,所述中层重量占膜总重的65%,所述内层重量占膜总重的15%。
所述增韧剂为EVA和/或POE,所述抗氧剂为抗氧化剂1010和抗氧化剂168的复配物,所述紫外线吸收剂为紫外线吸收剂770和紫外线吸收剂2020的复配物,所述相容剂为HDPE-GMAH。
所述增强剂为改性钽丝,所述改性钽丝是以纳米钽丝为芯线,外包裹一层玻璃纤维,所述改性钽丝的芯线直径在110微米,所述改性钽丝的直径在140微米。
本发明还提供了一种高强度HDPE膜制备方法,包括以下步骤:
S1、混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物;
S2、配料:将步骤S1中制备的外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料;
S3、吹膜:将步骤S2中配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用;
S4、将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米;
S5、将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物;
S6、将S5中的混合物与S4中的改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用;
S7、最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜。
在S7中,所述共挤吹塑过程为,将外层、中层、内层加入三层共挤吹塑薄膜机的外、中、内层料斗中,再将HDPE料添加至外、中、内层料斗中,加热并逐渐升温,外层、中层、内层的挤出温度控制在150°C,经挤出吹塑成型制得高强度HDPE膜。
实施例三
本发明还提供了一种技术方案,请结合参阅图1,其中图1为本发明提供的一种高强度HDPE膜制备方法的流程图。一种高强度HDPE膜,与实施例二不同的是,由以下原料制备而成:
所述原料按重量分数比为:HDPE70份、LLDPE30份、增韧剂10份、抗氧剂3份、紫外线吸收剂5份、相容剂5份、外层1份、中层1份和内层1份。
所述外层由45%的MLLDPE1018MF,55%的MLLDPE1018MA组成。
所述中层由65%的弹性体MX021、35%的VM6102和5%的功能母粒TC750组成。
所述内层由35%的MLLDPE1018MA、35%的MLLDPE1018MF、35%的MDPE5401和5%的HDPE-F15组成。
所述外层重量占膜总重的120%,所述中层重量占膜总重的70%,所述内层重量占膜总重的20%。
所述增韧剂为EVA和/或POE,所述抗氧剂为抗氧化剂1010和抗氧化剂168的复配物,所述紫外线吸收剂为紫外线吸收剂770和紫外线吸收剂2020的复配物,所述相容剂为HDPE-GMAH。
所述增强剂为改性钽丝,所述改性钽丝是以纳米钽丝为芯线,外包裹一层玻璃纤维,所述改性钽丝的芯线直径在130微米,所述改性钽丝的直径在160微米。
本发明还提供了一种高强度HDPE膜制备方法,包括以下步骤:
S1、混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物;
S2、配料:将步骤S1中制备的外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料;
S3、吹膜:将步骤S2中配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用;
S4、将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米;
S5、将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物;
S6、将S5中的混合物与S4中的改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用;
S7、最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜。
在S7中,所述共挤吹塑过程为,将外层、中层、内层加入三层共挤吹塑薄膜机的外、中、内层料斗中,再将HDPE料添加至外、中、内层料斗中,加热并逐渐升温,外层、中层、内层的挤出温度控制在160°C,经挤出吹塑成型制得高强度HDPE膜。
本发明提供的一种高强度HDPE膜制备方法的工作原理如下:
混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物,配料:将外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料,吹膜:将配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用,将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米,将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物,将混合物与改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用,最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜,从而有效的避免了现有的HDPE膜在-70°C甚至更低温度以及150°C甚至更高温度的环境下,其韧性以及机械强度已经难以满足实际需求。
与相关技术相比较,本发明提供的一种高强度HDPE膜制备方法具有如下有益效果:
本发明通过将HDPE、LLDPE、增韧剂以及增强剂等相混合制得的HDPE料,在低温以及高温条件下仍能具备优异的韧性与机械强度,使其具备更广的应用范围,再通过HDPE膜选用三层不同的材料并通过调节每层的比例,使制得的膜柔韧性好,具有高的拉伸强度,不易变形,制得的HDPE膜的拉伸强度在90MPa以上,收缩温度在190°C以上。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (9)
1.一种高强度HDPE膜,其特征在于,由以下原料制备而成: 所述原料按重量分数比为:HDPE50-70份、LLDPE20-30份、增韧剂5-10份、抗氧剂2-3份、紫外线吸收剂3-5份、相容剂3-5份、外层1份、中层1份和内层1份。
2.根据权利要求1所述的高强度HDPE膜,其特征在于,所述外层由35~45%的MLLDPE1018MF,45~55%的MLLDPE1018MA组成。
3.根据权利要求1所述的高强度HDPE膜,其特征在于,所述中层由55~65%的弹性体MX021、25~35%的VM6102和0.5~5%的功能母粒TC750组成。
4.根据权利要求1所述的高强度HDPE膜,其特征在于,所述内层由25~35%的MLLDPE1018MA、15~35%的MLLDPE1018MF、15~35%的MDPE5401和1~5%的HDPE-F15组成。
5.根据权利要求1所述的高强度HDPE膜,其特征在于,所述外层重量占膜总重的10~20%,所述中层重量占膜总重的60~70%,所述内层重量占膜总重的10~20%。
6.根据权利要求1所述的高强度HDPE膜,其特征在于,所述增韧剂为EVA和/或POE,所述抗氧剂为抗氧化剂1010和抗氧化剂168的复配物,所述紫外线吸收剂为紫外线吸收剂770和紫外线吸收剂2020的复配物,所述相容剂为HDPE-GMAH。
7.根据权利要求1所述的高强度HDPE膜,其特征在于,所述增强剂为改性钽丝,所述改性钽丝是以纳米钽丝为芯线,外包裹一层玻璃纤维,所述改性钽丝的芯线直径在90~130微米,所述改性钽丝的直径在110~160微米。
8.一种根据权利要求1-7中任意一项所述的高强度HDPE膜制备方法,其特征在于,包括以下步骤:
S1、混料:将配方量的外层的制备原料混合后制备外层原料混合物,将配方量的中层的制备原料混合后制备料混中层原合物,将配方量的内层的制备原料混合后制备内层原料混合物;
S2、配料:将步骤S1中制备的外层原料混合物、中层原料混合物、内层原料混合物按配比进行配料;
S3、吹膜:将步骤S2中配料后的膜材料共挤吹塑成型,得到外层、中层和内层,备用;
S4、将玻璃纤维熔融与纳米钽丝熔融并同步拉丝,然后将玻璃纤维包裹在纳米钽丝外周形成改性钽丝,拉丝过程中,包覆后的改性钽丝的直径控制在110~160微米;
S5、将原料HDPE、LLDPE、增韧剂、抗氧剂、紫外线吸收剂、相容剂、填料混合均匀得到混合物;
S6、将S5中的混合物与S4中的改性钽丝经螺杆挤出机挤出造粒,得到高强度耐高低温的HDPE料,备用;
S7、最后将S3中的外层、中层和内层与S6中的HDPE料共挤吹塑成型,得到高强度HDPE膜。
9.根据权利要求8所述的高强度HDPE膜制备方法,其特征在于,在S7中,所述共挤吹塑过程为,将外层、中层、内层加入三层共挤吹塑薄膜机的外、中、内层料斗中,再将HDPE料添加至外、中、内层料斗中,加热并逐渐升温,外层、中层、内层的挤出温度控制在140~160°C,经挤出吹塑成型制得高强度HDPE膜。
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CN113416330A (zh) * | 2021-06-04 | 2021-09-21 | 河南联和聚邦新材料股份有限公司 | 一种高密度高延伸率聚乙烯薄膜及制备方法 |
CN113416330B (zh) * | 2021-06-04 | 2023-05-26 | 河南联和聚邦新材料股份有限公司 | 一种高密度高延伸率聚乙烯薄膜及制备方法 |
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