CN105348650A - 一种聚丙烯组合物 - Google Patents

一种聚丙烯组合物 Download PDF

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CN105348650A
CN105348650A CN201510980512.3A CN201510980512A CN105348650A CN 105348650 A CN105348650 A CN 105348650A CN 201510980512 A CN201510980512 A CN 201510980512A CN 105348650 A CN105348650 A CN 105348650A
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CN105348650B (zh
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吴杰
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Ningbo Yinzhou Xiaoye Auto Parts Co., Ltd
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Ningbo Dasheng Household Products Co Ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

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  • Health & Medical Sciences (AREA)
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Abstract

本发明公开了一种聚丙烯组合物,其特征在于:由如下重量份的组分组成,其中,PP-1为异相聚丙烯,其熔体流速MFR2(230℃,2.16kg)不小于100g/10min,根据ISO?1133测定;PP-2为结晶性丙烯均聚物,其熔体流速MFR2(230℃,2.16kg)不大于15g/10min,根据ISO1133测定;HDPE的熔体流速MFR2(190℃,2.16kg)范围为5-8g/10min,根据ISO?1133测定;还公开了所述聚丙烯组合物的制备方法。

Description

一种聚丙烯组合物
技术领域
本发明属于高分子材料技术领域,具体涉及一种聚丙烯组合物。
背景技术
聚丙烯是五大通用树脂之一,具有质量轻、易加工、耐化学药品性强等优良特性,在化工、电器、汽车制造、包装等工业领域得到了广泛的应用。在汽车制造领域中,改性聚丙烯系列材料是一种性价比非常高的新型材料,它提高了基础聚丙烯树脂的综合物理性能,耐蠕变性,尺寸稳定性,具有高韧性、高刚性,优良的耐热性,耐老化性及很好的耐低温性和较高的冲击强度,但目前汽车制造中使用的改性聚丙烯仍然存在着提高其韧性、尺寸稳定性的要求,以及提高刚性、抗冲击性能等的要求。
发明内容
本发明的目的在于提供聚丙烯组合物,其具有改进的性能,例如高韧性和尺寸稳定性,以及高刚性和高抗冲击性能等。
同时提供了该聚丙烯组合物的制备方法。
本发明的技术方案如下:
一种聚丙烯组合物,其特征在于:由如下重量份的组分组成,
其中,PP-1为异相聚丙烯,其熔体流速MFR2(230℃,2.16kg)不小于100g/10min,根据ISO1133测定;
PP-2为结晶性丙烯均聚物,其熔体流速MFR2(230℃,2.16kg)不大于15g/10min,根据ISO1133测定;
HDPE的熔体流速MFR2(190℃,2.16kg)范围为5-8g/10min,根据ISO1133测定。
优选的,各组分重量份为,
其中,抗氧剂为抗氧剂1010和168,其中抗氧剂1010与168的重量比例为4:1-2:1;
抗紫外线剂为受阻酚或受阻胺类抗紫外线剂;偶联剂为硅烷偶联剂;色料为炭黑或二氧化钛。优选的,PP-1为异相聚丙烯,其熔体流速MFR2(230℃,2.16kg)不小于160g/10min,根据ISO1133测定;PP-2为结晶性丙烯均聚物,其熔体流速MFR2(230℃,2.16kg)不大于10g/10min,根据ISO1133测定;HDPE的熔体流速MFR2(190℃,2.16kg)范围为7-8g/10min,根据ISO1133测定;HDPE的密度为0.95-0.96g/cm2
乙烯丙烯共聚物中来自丙烯的单元为50-70wt%,乙烯辛烯共聚物中来自辛烯的单元为20-50wt%。
本发明的有益效果是:
1、通过特定熔体流速范围内的高熔体流速PP与低熔体流速PP的组合,改善了组合物的韧性和尺寸稳定性;
2、通过结合乙烯丙烯共聚物、乙烯辛烯共聚物、马来酸酐接枝聚丙烯、HDPE和滑石粉,进一步有效地提高了组合物的韧性和尺寸稳定性,并提高了抗冲击性能和刚性;
3、通过抗氧剂、抗紫外剂的加入,提高了组合物的耐老化性能。
具体实施方式
以下通过具体实施方式对本发明的技术方案进行进一步的说明和描述。
PP-1为LyondellBasell公司产品,MFR2为140g/10min(230℃/2.16kg);
PP-2为ofBorealis公司的HD915CF,MFR2为8g/10min(230℃/2.16kg);
PP-3为LyondellBasell公司产品,MFR2为70g/10min(230℃/2.16kg);
PP-4为ofBorealis公司产品,MFR2为20g/10min(230℃/2.16kg);
HDPE为辽宁盘锦石化公司产品,密度为0.955g/cm3,MFR2为7.0g/10min(190℃);
乙烯丙烯共聚物为LyondellBasell公司产品,具有乙烯单元为36wt%;
乙烯辛烯共聚物为陶氏化学产品;
抗氧剂为抗氧剂1010和168,其中抗氧剂1010与168的重量比例为2:1;抗紫外线剂为受阻酚类抗紫外线剂;偶联剂为硅烷偶联剂;色料为炭黑;均为市售产品。
实施例1
按比例(见表1)称取各组分后,将滑石粉与偶联剂在1000转/分的速度下混合搅拌10min后,停留在高速混合机中待用;
(b)将剩余组分加入步骤(a)中混合好的物料,低速300转/分搅拌,共混30min;
(c)将步骤(b)中混合好的物料加入到双螺杆挤出机中,设定好合适的温度和转速,使物料在熔融状态下挤出,并通过冷水拉条造粒。
其中,双螺杆挤出机的设定温度为:机头195℃;九区215℃;八区225;七区225℃;六区230℃;五区225℃;四区220℃;三区215℃;二区210℃;一区195℃,转速:600转/分;频率:35Hz。
将上述聚丙烯组合物颗粒加热熔融后制成样品进行性能测试,其各项性能见表1。
实施例2-4以及比较例1-4的制备方法与实施例1相同,其各组分用量以及产品性能见表1。
表1:
拉伸强度和断裂伸长率采用GB/T1040.2-2006/1A/50标准测试,弯曲强度采用GB/T9341-2000标准测试,冲击强度采用GB/T1043-1993标准测试。
通过上述实施例和比较例可知,采用本发明范围内的聚丙烯组合物制备的产品在整体上,具有良好的韧性、尺寸稳定性、和高刚性、高抗冲击性能,而采用熔体流速不是本发明范围内的聚丙烯,以及用量不处于本发明范围内的增韧剂马来酸酐接枝聚丙烯、乙烯丙烯共聚物、乙烯辛烯共聚物,制得的产品,虽然其可能在某一项性能(例如比较例2中虽然抗冲击强度大,但其断裂伸长率过小,导致其韧性不足,比较例4中,虽然韧性大,但其冲击强度过小)上达到了本发明的范围,但包括韧性、尺寸稳定性、刚性、抗冲击性能等整体的性能还是达不到本发明的产品的范围。
以上所述,仅为本发明的较佳实施例而已,故不能依此限定本发明实施的范围,即依本发明专利范围及说明书内容所作的等效变化与修饰,皆应仍属本发明涵盖的范围内。

Claims (6)

1.一种聚丙烯组合物,其特征在于:由如下重量份的组分组成,
其中,PP-1为异相聚丙烯,其熔体流速MFR2(230℃,2.16kg)不小于100g/10min,根据ISO1133测定;
PP-2为结晶性丙烯均聚物,其熔体流速MFR2(230℃,2.16kg)不大于15g/10min,根据ISO1133测定;
HDPE的熔体流速MFR2(190℃,2.16kg)范围为5-8g/10min,根据ISO1133测定。
2.如权利要求1所述的聚丙烯组合物,其特征在于:各组分重量份为,
3.如权利要求1所述的聚丙烯组合物,其特征在于:
抗氧剂为抗氧剂1010和168,其中抗氧剂1010与168的重量比例为4:1-2:1。
4.如权利要求1所述的聚丙烯组合物,其特征在于:
抗紫外线剂为受阻酚或受阻胺类抗紫外线剂;偶联剂为硅烷偶联剂;色料为炭黑或二氧化钛。
5.如权利要求1所述的聚丙烯组合物,其特征在于:
PP-1为异相聚丙烯,其熔体流速MFR2(230℃,2.16kg)不小于160g/10min,根据ISO1133测定;PP-2为结晶性丙烯均聚物,其熔体流速MFR2(230℃,2.16kg)不大于10g/10min,根据ISO1133测定;HDPE的熔体流速MFR2(190℃,2.16kg)范围为7-8g/10min,根据ISO1133测定。
6.如权利要求1所述的聚丙烯组合物,其特征在于:
HDPE的密度为0.95-0.96g/cm2
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CN107722448A (zh) * 2016-08-11 2018-02-23 株式会社瑞延理化 利用天然纤维的汽车内饰材料用复合组合物
CN108373565A (zh) * 2018-03-19 2018-08-07 金发科技股份有限公司 一种耐化学品、耐划伤聚丙烯复合材料及其制备方法
CN109532033A (zh) * 2018-11-13 2019-03-29 江苏凯伦建材股份有限公司 一种预铺反粘防水卷材的电磁焊接方法

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CN104292654A (zh) * 2014-09-30 2015-01-21 四川光亚塑胶电子有限公司 一种耐冲击高融指高刚性聚丙烯复合材料

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CN103154122A (zh) * 2010-08-06 2013-06-12 北欧化工公司 具有出色的冲击性/刚性平衡的多相丙烯共聚物
CN103080212A (zh) * 2010-08-27 2013-05-01 北欧化工公司 具有出色的断裂伸长性的刚性聚丙烯组合物
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CN104292654A (zh) * 2014-09-30 2015-01-21 四川光亚塑胶电子有限公司 一种耐冲击高融指高刚性聚丙烯复合材料

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107722448A (zh) * 2016-08-11 2018-02-23 株式会社瑞延理化 利用天然纤维的汽车内饰材料用复合组合物
CN107722448B (zh) * 2016-08-11 2020-09-01 株式会社瑞延理化 利用天然纤维的汽车内饰材料用复合组合物
CN108373565A (zh) * 2018-03-19 2018-08-07 金发科技股份有限公司 一种耐化学品、耐划伤聚丙烯复合材料及其制备方法
CN108373565B (zh) * 2018-03-19 2020-07-14 金发科技股份有限公司 一种耐化学品、耐划伤聚丙烯复合材料及其制备方法
CN109532033A (zh) * 2018-11-13 2019-03-29 江苏凯伦建材股份有限公司 一种预铺反粘防水卷材的电磁焊接方法
WO2020098318A1 (zh) * 2018-11-13 2020-05-22 江苏凯伦建材股份有限公司 一种预铺反粘防水卷材的电磁焊接方法

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