CN114395180A - 冲压保护用高强度保护膜 - Google Patents
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 12
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- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 5
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- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims abstract description 5
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims abstract description 4
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 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 4
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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 3
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical group [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 3
- 229940063655 aluminum stearate Drugs 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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Abstract
本发明公开了一种冲压保护用高强度保护膜，所述保护膜由母粒吹塑成型获得保护膜，所述母粒由以下重量份组分组成：熔指为0.5~5g/10min低密度聚乙烯100份、熔指为1.8~2g/10min茂金属线性低密度聚乙烯10~25份、三元共聚聚丙烯5~12份、油酸酰胺0.3~1份、硬脂酸盐0.1~1份、氧化锌0.2~0.8份、硬脂酸盐0.5~1份、聚癸二酸‑癸二醇二元醇1~3份、二环己基碳二亚胺2~4份、抗氧化剂0.5~1.5份。本发明高强度保护膜改善了薄膜的断裂伸长率，在冲压加工时不易断裂的同时，也提高了保护膜的耐穿刺性，穿刺力达到了18N，从而扩展了应用前景。
Description
技术领域
本发明涉及保护膜领域，尤其涉及一种冲压保护用高强度保护膜。
背景技术
保护膜是一种对其它材料表面具有保护作用的膜材料，其主要作用是保护被保护材料在制造、运输、储存和二次加工过程中免受机械划伤、粉尘污染、有害气体侵蚀和微生物腐蚀。聚乙烯薄膜具有柔软、韧性好、伸长率大、易于弯折加工和贴附性好等特点，在保护膜中占有较大市场份额。目前在汽车、家用电器等领域的工厂生产中，金属冲压成型工艺已被广泛应用并形成了非常成熟的工艺。在金属板冲压成型过程中，加工环境拉伸力大、摩擦力大、局部高温种种因素导致冲压制品表面被划伤、起皱甚至开裂，也降低了模具的使用寿命，因此在冲压工艺过程中，对金属冲压件必须施加保护膜予以保护。
发明内容
本发明目的在于提供一种冲压保护用高强度保护膜，该冲压保护用高强度保护膜改善了薄膜的断裂伸长率，在冲压加工时不易断裂的同时，也提高了保护膜的耐穿刺性，穿刺力超过了18N，从而扩展了应用前景。
为达到上述目的，本发明采用的技术方案是：一种冲压保护用高强度保护膜，所述保护膜由母粒吹塑成型获得保护膜，所述母粒由以下重量份组分组成：
熔指为0.5~5g/10min低密度聚乙烯 100份，
熔指为1.8~2g/10min茂金属线性低密度聚乙烯 10~25份，
三元共聚聚丙烯 5~12份，
油酸酰胺 0.3~1份，
硬脂酸盐 0.1~1份，
氧化锌 0.2~0.8份，
硬脂酸盐 0.5~1份，
聚癸二酸-癸二醇二元醇 1~3份，
二环己基碳二亚胺 2~4份，
抗氧化剂 0.5~1.5份。
上述技术方案中进一步改进的技术方案如下：
1、上述方案中，所述硬脂酸盐为硬脂酸铝、硬脂酸锌、硬脂酸钙或者硬脂酸镁。
2、上述方案中，所述抗氧剂为抗氧化剂1010、抗氧化剂168、抗氧化剂616中的至少一种。
3、上述方案中，所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明高强度抗穿刺保护膜，其基于熔指为0.5~5g/10min低密度聚乙烯100份、熔指为1.8~2g/10min茂金属线性低密度聚乙烯10~25份、三元共聚聚丙烯 5~12份进一步添加聚癸二酸-癸二醇二元醇 1~3份、二环己基碳二亚胺2~4份，改善了薄膜的断裂伸长率，在冲压加工时不易断裂的同时，也提高了保护膜的耐穿刺性，穿刺力达到了18N，从而扩展了应用前景。
具体实施方式
下面结合实施例对本发明作进一步描述：
实施例1~4：一种冲压保护用高强度保护膜，所述保护膜由母粒吹塑成型获得保护膜，所述母粒由以下重量份组分组成，如表1所述：
表1
实施例1中硬脂酸盐为硬脂酸铝，所述抗氧剂为抗氧化剂616，所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
实施例2中硬脂酸盐为硬脂酸锌，所述抗氧剂为抗氧化剂1010，所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
实施例3中硬脂酸钙，所述抗氧剂为抗氧化剂168，所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
实施例4中硬脂酸盐为硬脂酸镁，所述抗氧剂为抗氧化剂1010所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
上述冲压保护用高强度保护膜，通过以下步骤制得：
步骤一、将氧化锌0.2~0.8份、聚癸二酸-癸二醇二元醇1~3份、二环己基碳二亚胺2~4份在50℃~60℃搅拌混合，获得物料A；
步骤二、将熔指为0.5~5g/10min低密度聚乙烯100份、熔指为1.8~2g/10min茂金属线性低密度聚乙烯10~25份、油酸酰胺0.3~1份、硬脂酸锌0.1~1份、硬脂酸盐0.5~1份、抗氧剂0.5~1.5份投入混合机内，混合均匀后投入双螺杆挤出机挤出造粒，获得物料B；
步骤三、将物料A、物料B和三元共聚聚丙烯5~12份投入密炼机中，密炼处理10~30min后出料，获得所述母料；
步骤四、将母粒吹塑成型获得高延展性保护膜。
对比例1~3：一种冲压保护用高强度保护膜，所述保护膜由母粒吹塑成型获得保护膜，所述母粒由以下重量份组分组成，如表2所述：
表2
对比例的制备方法同实施例的制备方法。
实施例1~4和对比例1~3中的保护膜，性能检测数据如表3所示：
表3
如表3的评价结果所示，具有本发明实施例1~4的保护膜的断裂伸长率和耐穿刺性均较好；对比例1的断裂伸长率较好，穿刺性均较差；对比例2的断裂伸长率较差，穿刺性均较差；对比例3的断裂伸长率较差，穿刺性均较好。说明本发明保护膜改善了薄膜的断裂伸长率，在冲压加工时不易断裂的同时，也提高了保护膜的耐穿刺性，穿刺力达到了18N，从而扩展了应用前景。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种冲压保护用高强度保护膜，其特征在于：所述保护膜由母粒吹塑成型获得保护膜，所述母粒由以下重量份组分组成：
熔指为0.5~5g/10min低密度聚乙烯 100份，
熔指为1.8~2g/10min茂金属线性低密度聚乙烯 10~25份，
三元共聚聚丙烯 5~12份，
油酸酰胺 0.3~1份，
硬脂酸盐 0.1~1份，
氧化锌 0.2~0.8份，
硬脂酸盐 0.5~1份，
聚癸二酸-癸二醇二元醇 1~3份，
二环己基碳二亚胺 2~4份，
抗氧化剂 0.5~1.5份。
2.根据权利要求1所述的冲压保护用高强度保护膜，其特征在于：所述硬脂酸盐为硬脂酸铝、硬脂酸锌、硬脂酸钙或者硬脂酸镁。
3.根据权利要求1所述的冲压保护用高强度保护膜，其特征在于：所述抗氧剂为抗氧化剂1010、抗氧化剂168、抗氧化剂616中的至少一种。
4.根据权利要求1所述的冲压保护用高强度保护膜，其特征在于：所述三元共聚聚丙烯为乙烯-丙烯-1-丁烯三元共聚物。
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679194A (zh) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | 耐穿刺聚乙烯组合物及其薄膜 |
| CN110527179A (zh) * | 2019-10-16 | 2019-12-03 | 广东一龙新材料科技有限公司 | 一种柔软聚乙烯薄膜母粒及其制备方法 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679194A (zh) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | 耐穿刺聚乙烯组合物及其薄膜 |
| CN110527179A (zh) * | 2019-10-16 | 2019-12-03 | 广东一龙新材料科技有限公司 | 一种柔软聚乙烯薄膜母粒及其制备方法 |
Non-Patent Citations (1)
| Title |
|---|
| 张玉龙等: "塑料吹塑制品 配方涉及与加工实例", 国防工业出版社 * |
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