CN1934172A - 车辆制动盘防锈膜的表面基材膜 - Google Patents
车辆制动盘防锈膜的表面基材膜 Download PDFInfo
- Publication number
- CN1934172A CN1934172A CNA2005800088098A CN200580008809A CN1934172A CN 1934172 A CN1934172 A CN 1934172A CN A2005800088098 A CNA2005800088098 A CN A2005800088098A CN 200580008809 A CN200580008809 A CN 200580008809A CN 1934172 A CN1934172 A CN 1934172A
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- Prior art keywords
- film
- surface substrate
- sensitive adhesive
- pressure sensitive
- substrate film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
根据本发明,具有220MPa或更高的拉伸弹性模量的膜被用作车辆制动盘防锈膜的表面基材膜。如果需要,表面基材膜进一步含有0.01-20质量份/100质量份表面基材膜的比例的紫外线吸收剂,使得在200-380nm的波长区域中表面基材膜的光谱透射率是在0-20%之内。本发明能够提供用于车辆制动盘防锈膜的表面基材膜,后者在粘附于汽车车轮上之后几乎不剥离。
Description
技术领域
本发明涉及车辆制动盘防锈膜的表面基材膜,该表面基材膜使得车辆制动盘防锈膜在粘附于汽车车轮上时几乎不剥离。
背景技术
车辆制动盘被从外部渗入的雨水所氧化并且有黑锈粘附于其上。此类黑锈导致损害在汽车内的安静和舒适性。因此,车辆制动盘需要进行防水处理以防止氧化。
通常,为了在车辆制动盘上防止黑色锈,已经采用了一种方法,即模制的纸浆产品直接安装在制动盘上。然而,此类模制的纸浆产品在耐水性上是差的,需要多个步骤来安装和除去它,花费高的成本和还有其它缺点;因此,最近已建议了用压敏粘合剂膜替代该模制纸浆产品(日本专利公开No.7-309510)。此类压敏粘合剂膜被称为防锈膜,并且粘附于轮胎车轮上,因为该压敏粘合剂膜具有一些优点,使得它涉及到简单的粘合和剥离步骤并且能够防止轮胎车轮的外部破裂。防锈膜要求具有三维曲面跟随性,因为作为被粘物的轮胎具有三维曲线形状。从这一观点看,柔性聚乙烯薄膜用作基材膜。
另一方面,为了制动盘,汽车底板在空气动力学上进行设计,要求在汽车运行的同时从汽车前面进入的气流被抽吸而流向轮胎车轮。因此,空气压力是从内部施加在防锈膜上。因此,会有一个问题,即,当汽车在承运汽车上运输时或当完整的汽车进行行车试验时,防锈膜会发生剥离。另外,铝制车轮具有一个优点即它在加工性能上优于不锈钢车轮,因此对于铝车轮已经允许有设计的复杂化;从重量减轻而行车里程改进,减少材料的消耗量使得环境负担减轻,和制动盘的冷却效率的改进考虑,具有薄的轮辐的铝制车轮占主导地位。结果,对于粘附于铝制车轮上的防锈膜具有减少的粘合面积,因此会有逐渐遭遇剥离问题的趋势。
本发明的公开
本发明的目的是,通过解决以上所述问题,提供用于车辆制动盘防锈膜的表面基材膜,当表面基材膜粘合于汽车车轮上时它几乎不剥离。
本发明人为了解决上述问题进行了努力的研究,通过发现上述问题可以由提供具有特定的拉伸弹性模量的表面基材膜来解决而完成了本发明。
具体地说,本发明提供了用于车辆制动盘防锈膜的表面基材膜,该表面基材膜体现特征于具有220MPa或更高的拉伸弹性模量。
另外,本发明提供了根据以上叙述的用于车辆制动盘防锈膜的表面基材膜,该表面基材膜具有220-2200MPa的拉伸弹性模量。
另外,本发明提供用于如上所述的车辆制动盘防锈膜的表面基材膜,其中表面基材膜包括0.01-20质量份/100质量份表面基材膜的比例的紫外线吸收剂,使得在200-380nm的波长区域中表面基材膜的光谱透射率是在0-20%之内。
此外,本发明提供车辆制动盘防锈膜,其特征在于在以上所述的表面基材膜的一个表面上包括压敏粘合剂层。
本发明的用于车辆制动盘防锈膜的表面基材膜几乎不剥离并且对于防止在车辆制动盘上形成黑锈的方面表现优异,当表面基材膜在其一个表面上提供压敏粘合剂层,用作车辆制动盘防锈膜,和粘附于车轮上以使压敏粘合剂层的表面面对和接触到该车轮时。
进行本发明的优选实施方案
本发明的用于车辆制动盘防锈膜的表面基材膜具有220MPa或更高,优选220到2200MPa,更优选240到2000MPa,和特别优选240到1500MPa的拉伸弹性模量。
只要用于车辆制动盘防锈膜的表面基材膜具有在上述范围内的拉伸模量,用于车辆制动盘防锈膜的表面基材膜能够由各种材料制成。此类优选的材料的例子包括由低密度聚乙烯树脂和高密度聚乙烯树脂组成的混合物,聚对苯二甲酸乙二醇酯树脂和聚丙烯树脂。
低密度聚乙烯树脂在由低密度聚乙烯树脂和高密度聚乙烯树脂组成的混合物中的混合比优选是30到95质量份和特别优选50到90质量份,在100质量份的混合物中。在这里,低密度聚乙烯树脂可以是支化低密度聚乙烯树脂或直链低密度聚乙烯树脂;然而,直链低密度聚乙烯树脂是优选的。低密度聚乙烯树脂和高密度聚乙烯树脂的例子包括乙烯均聚物或由作为主要组分的乙烯与α-烯烃如丙烯,1-丁烯和1-戊烯中的至少一种组成的共聚物树脂。两种,三种,四种或更多种α-烯烃的结合物也可以采用。低密度聚乙烯树脂的密度优选是0.910-0.940g/cm3,更优选0.918-0.938g/cm3和特别优选0.923-0.933g/cm3。高密度聚乙烯树脂的密度优选是0.945-0.960g/cm3和特别优选0.950-0.959g/cm3。
车辆制动盘防锈膜的表面基材膜可以由单层或具有相同类型或不同类型的两个或多个层的多层所形成。另外,车辆制动盘防锈膜的表面基材膜可以进行拉伸处理,如单轴拉伸或双轴拉伸。
用于模塑加工该表面基材膜的方法的例子包括挤塑方法和吹胀模塑方法;然而,该吹胀模塑方法是优选的。
作为拉伸方法,各种拉伸方法都能够适用。该拉伸方法的例子包括:以圆周速度彼此不同的一组辊为基础的纵向单轴拉伸方法,以拉幅机烘箱为基础的侧向单轴拉伸方法,以这些方法的组合为基础的双轴拉伸方法,和以吹胀为基础的管膜拉伸方法。
表面基材膜可以在拉伸之后进行退火处理。
对用于车辆制动盘防锈膜的表面基材膜的厚度没有特殊的限制;然而,通常厚度优选是20-200μm范围内,和特别优选在30-100μm范围内。
车辆制动盘防锈膜的表面基材膜优选在制造之后包括紫外线吸收剂,使得在200-380nm的波长区域中表面基材膜的光谱透射率是在0-20%范围内。在100质量份的表面基材膜中,紫外线吸收剂的含量优选是0.01到20质量份。紫外线吸收剂的包含会改进耐气候性,并且甚至当在户外较长时间暴露时,该膜能够剥离但不在被粘物上留下任何压敏粘合剂沉积物。
紫外线吸收剂的具体例子包括氢醌型紫外线吸收剂,水杨酸酯型紫外线吸收剂,二苯甲酮型紫外线吸收剂,苯并三唑型紫外线吸收剂和氰基丙烯酸酯型紫外线吸收剂。
氢醌型紫外线吸收剂的例子包括氢醌和氢醌二水杨酸酯。水杨酸酯型紫外线吸收剂的例子包括水杨酸苯酯和水杨酸对-辛基苯基酯。二苯甲酮型紫外线吸收剂的例子包括2-羟基-4-甲氧基二苯甲酮,2-羟基-4-正辛氧基二苯甲酮,2-羟基-4-甲氧基-2’-羧基二苯甲酮,2,4-二羟基二苯甲酮,2,2’-二羟基-4,4’-二甲氧基二苯甲酮,2-羟基-4-苯甲酰氧基二苯甲酮,2,2’-二羟基-4-甲氧基二苯甲酮,2-羟基-4-甲氧基-5-砜二苯甲酮,2,2’,4,4’-四羟基二苯甲酮,2,2’-二羟基-4,4’-二甲氧基-5-磺酸钠二苯甲酮,4-十二烷氧基-2-羟基二苯甲酮,和2-羟基-5-氯二苯甲酮。
苯并三唑型紫外线吸收剂的例子包括2-(2’-羟基-3’-叔丁基-5’-甲基苯基)-5-氯苯并三唑,2-(2’-羟基-5’-甲基苯基)苯并三唑,2-(2’羟基-5’-甲基苯基)-5-羧酸丁基酯苯并三唑,2-(2’-羟基-5’-甲基苯基)-5,6-二氯苯并三唑,2-(2’-羟基-5’-甲基苯基)-5-乙基砜苯并三唑,2-(2’-羟基-5’-叔丁基苯基)-5-氯苯并三唑,2-(2’-羟基-5’-叔丁基苯基)苯并三唑,2-(2’-羟基-5’-戊基苯基)苯并三唑,2-(2’-羟基-3’,5’-二甲基苯基)苯并三唑,2-(2’-羟基-3’,5’-二甲基苯基)-5-甲氧基苯并三唑,2-(2’-甲基-4’-羟苯基)苯并三唑,2-(2’-硬脂酰氧基-3’,5’-二甲基苯基)-5-甲基苯并三唑,2-(2’-羟基-5-羧酸苯基)苯并三唑乙酯,2-(2’-羟基-3’-甲基-5’-叔丁基苯基)苯并三唑,2-(2’-羟基-3’,5’-二-叔丁基苯基)-5-氯苯并三唑,2-(2’-羟基-5-甲氧基苯基)苯并三唑,2-(2’-羟基-5’-苯基苯基)-5-氯苯并三唑,2-(2’-羟基-5’-环己基苯基)苯并三唑,2-(2’-羟基-4’,5’-二甲基苯基)-5-羧酸苯并三唑丁基酯,2-(2’-羟基-3’,5’-二氯苯基)苯并三唑,2-(2’-羟基-4’,5’-二氯)苯并三唑,2-(2’-羟基-3’,5’-二甲基苯基)-5-乙基砜苯并三唑,2-(2’-羟基-5’-苯基苯基)苯并三唑,2-(2’-羟基-5’-辛氧基苯基)苯并三唑,2-(2’-羟基-4’-辛氧基苯基)苯并三唑,2-(2’-羟基-5’-甲氧基苯基)-5-甲基苯并三唑,2-(2’-羟基-5’-甲基苯基)-5-羧酸酯苯并三唑,2-(2’-乙酰氧基-5’-甲基苯基)苯并三唑,2-(2’-羟基-3’,5’-二-叔丁基苯基)-5-氯苯并三唑,和2-2’-亚甲基双[6-(2-苯并三唑-2-基)-4-(1,1,3,3-四甲基丁基)苯酚]。氰基丙烯酸酯型紫外线吸收剂的例子包括2-氰基-3,3-二苯基丙烯酸乙基酯和2-氰基-3,3-二苯基丙烯酸2-乙基己基酯。
在这些紫外线吸收剂之中优选的是二苯甲酮型紫外线吸收剂和苯并三唑型紫外线吸收剂。尤其,优选作为二苯甲酮型紫外线吸收剂的是2,3’-二羟基-4,4’-二甲氧基二苯甲酮,2,2’-二羟基-4-甲氧基二苯甲酮和2,2’,4,4’-四羟基二苯甲酮;和优选作为苯并三唑型紫外线吸收剂的是2-(2’-羟基-5’-甲基苯基)苯并三唑,2-(2’-羟基-5’-甲基苯基)-5,6-二氯苯并三唑,2-(2’-羟基-5’-叔丁基苯基)苯并三唑,2-(2’-羟基-3’-甲基-5’-叔丁基苯基)苯并三唑,2-(2’-羟基-3’,5’-二-叔丁基苯基)-5-氯苯并三唑,2-(2’-羟基-5’-苯基苯基)-5-氯苯并三唑,2-(2’-羟基-3’-叔丁基-5’-甲基苯基)-5-氯苯并三唑,和2-(2’-羟基-5’-辛氧基苯基)苯并三唑。
这些紫外线吸收剂能够单独使用或以两种或多种的结合物来使用。
另外,一种或多种耐候剂如光稳定剂和抗氧化剂能够适当地与紫外线吸收剂一起包括在内。
用于车辆制动盘防锈膜的表面基材膜是需要沉积在车辆制动盘防锈膜的表面上的基材膜。
在本发明中,压敏粘合剂层优选提供在用于车辆制动盘防锈膜的表面基材膜的一个表面上。
用于压敏粘合剂层的压敏粘合剂的例子包括天然橡胶型压敏粘合剂,合成橡胶型压敏粘合剂,丙烯酸系树脂型压敏粘合剂,聚乙烯醚树脂型压敏粘合剂,聚氨酯树脂型压敏粘合剂和硅树脂型压敏粘合剂。合成橡胶型压敏粘合剂的特定例子包括苯乙烯-丁二烯橡胶,聚异丁烯橡胶,异丁烯-异戊二烯橡胶,异戊二烯橡胶,苯乙烯-异戌二烯嵌段共聚物,苯乙烯-丁二烯嵌段共聚物,苯乙烯-乙烯-丁烯嵌段共聚物和乙烯-乙酸乙烯酯热塑性弹性体。
丙烯酸系树脂型压敏粘合剂的例子包括两种或多种的下列可共聚单体的共聚物:(甲基)丙烯酸如丙烯酸和甲基丙烯酸;(甲基)丙烯酸烷基酯如丙烯酸甲酯,丙烯酸乙酯,丙烯酸丙基酯,丙烯酸丁酯,丙烯酸2-乙基己基酯,甲基丙烯酸甲酯,甲基丙烯酸乙酯和甲基丙烯酸丁酯;含羟基的(甲基)丙烯酸烷基酯如丙烯酸2-羟乙基酯,丙烯酸2-羟丙基酯,丙烯酸3-羟丙基酯,丙烯酸3-羟丁基酯和丙烯酸4-羟丁基酯;和如果需要,乙烯基酯如乙酸乙烯酯和丙酸乙烯基酯;和苯乙烯,乙烯基吡啶,丙烯腈和甲基丙烯腈。
聚乙烯醚树脂型压敏粘合剂的特定例子包括聚乙烯醚和聚乙烯基异丁基醚。硅树脂型压敏粘合剂的特定例子包括二甲聚硅氧烷。这些压敏粘合剂能够单独使用或以两种或多种的结合物来使用。
在这些压敏粘合剂之中优选的是丙烯酸系树脂型压敏粘合剂。特别优选的是通过用多异氰酸酯化合物交联丙烯酸系共聚物所获得的丙烯酸系树脂型压敏粘合剂。丙烯酸系共聚物中每一种的重均分子量优选是500,000到1,100,000,更优选600,000到1,000,000,和特别优选650,000到950,000。
多异氰酸酯化合物的例子包括甲苯二异氰酸酯(TDI),六亚甲基二异氰酸酯(HMDI),异氟尔酮二异氰酸酯(IPDI),二甲苯二异氰酸酯(XDI),氢化甲苯二异氰酸酯,二苯甲烷二异氰酸酯和它们的氢化产物,多亚甲基多苯基多异氰酸酯,亚萘基-1,5-二异氰酸酯,多异氰酸酯预聚物和聚羟甲基丙烷改性TDI。优选作为多异氰酸酯化合物的是二异氰酸酯化合物,三异氰酸酯化合物,四异氰酸酯化合物和五异氰酸酯化合物;特别优选的是二异氰酸酯化合物和三异氰酸酯化合物。通过控制多异氰酸酯化合物的交联量,能够达到为各种涂敷表面所需的压敏粘合剂物理性能。多异氰酸酯化合物的用量优选是0.01到20质量份,相对于100质量份的丙烯酸系共聚物。多异氰酸酯化合物能够单独或以两种或多种的结合物使用。
当进行交联时,优选的是将丙烯酸系共聚物和多异氰酸酯化合物充分混合在一起,尤其在溶剂中充分混合在一起。该丙烯酸系共聚物和多异氰酸酯化合物在溶剂中的总浓度优选是20-80%(质量),和特别优选30-70%(质量)。溶剂的例子包括脂肪酸酯如乙酸乙酯;酮类如甲基乙基酮和二乙基甲酮;脂肪族烃如己烷,庚烷和辛烷;和芳族烃如苯和甲苯。这些溶剂能够单独使用或以两种或多种的结合物来使用。作为溶剂,丙烯酸系共聚物的聚合溶剂也可以原样使用。
该交联温度能够适当地进行选择;然而,通常,它是0-100℃,和优选是10-40℃。该交联可以在溶液状态下进行,或在涂敷之后的干燥过程中或在涂敷之后的干燥之后进行。
优选的是让压敏粘合剂层包括紫外线吸收剂以使在200-380nm的波长区域中车辆制动盘防锈膜的光谱透射率是在0-20%范围内。紫外线吸收剂的混合比优选是0.01到20%(质量),相对于压敏粘合剂层的树脂组分。
另外,增粘剂,软化剂,抗老化剂,填料和着色剂如染料或颜料中的一种或多种能够适当地混合在该压敏粘合剂层中。增粘剂的例子包括松香型树脂,萜烯酚树脂,萜烯树脂,芳族烃改性萜烯树脂,石油树脂,色酮-茚树脂,苯乙烯型树脂,酚醛树脂和二甲苯树脂。软化剂的例子包括加工油,液态橡胶和增塑剂。填料的例子包括硅石,滑石,粘土和碳酸钙。
对于压敏粘合剂层的厚度没有特别限制,但是,该厚度通常是1-300μm,和优选是2-150μm和特别优选是5-100μm。
该压敏粘合剂层可以通过直接涂敷该表面基材膜的一个表面来形成,或可以通过防粘衬层的压敏粘合剂层的表面与表面基材膜彼此粘结而在表面基材膜的一个表面上形成,其中防粘衬层已经作为具有压敏粘合剂层的防粘衬层来制备的,它是通过预先在防粘衬层的防粘剂层表面上涂敷压敏粘合剂并通过干燥该压敏粘合剂层来形成的。对于形成压敏粘合剂层的方法没有特别限制,并且各种方法都能够使用。此类方法的例子包括利用下列涂敷器进行涂敷和然后干燥的方法:气刀涂敷器,刮刀涂敷器,刮棒涂敷器,凹槽辊涂敷器,辊涂器,辊刮刀涂布机,幕涂机,口模涂敷器,刮刀涂敷器,筛网涂敷器,迈尔刮棒涂敷器和吻合式涂布机。
压敏粘合剂层的表面优选被防粘衬层覆盖。另外地,无需使用防粘衬层,有可能通过将防粘剂涂敷到表面基材膜的表面上来为表面基材膜赋予防粘性,制备压敏粘合剂膜(其中压敏粘合剂层提供在表面基材膜的非防粘表面上),和辊压所获得的压敏粘合剂膜,以使防粘表面和压敏粘合剂层的表面彼此接触来进行贮存。因此,压敏粘合剂层的表面能够得到保护。
作为防粘衬层,任何类型都可以使用。例如能够使用防粘衬层,其中如果需要的话,防粘衬层的基材的表面(被粘结于压敏粘合剂层上)进行了防粘处理,其中采用为基材的是由各种树脂形成的膜,这类树脂例如是聚对苯二甲酸乙二醇酯,聚对苯二甲酸丁二醇酯,聚乙烯,聚丙烯和聚丙烯酸酯,并且还可以是各种纸材料如聚乙烯层压纸片,聚丙烯层压纸片,粘土涂布的纸,树脂涂敷的纸,玻璃纸和不含木浆的纸。
在这种情况下,防粘处理的典型例子包括由防粘剂如硅酮型树脂、长链烷基型树脂或氟型树脂形成的防粘剂层的形成。
对于防粘衬层的厚度没有特殊的限制,并且厚度可以适当地选择。使用本发明的用于车辆制动盘防锈膜的表面基材膜的车辆制动盘防锈膜对于被粘物的粘合能够优选通过在表面基材膜的一个表面上提供压敏粘合剂层,当防粘衬层覆盖压敏粘合剂层的表面时剥离该防粘衬层,和将压敏粘合剂层粘合于被粘物如车轮的表面上来进行。另外地,当没有在车辆制动盘防锈膜的一个表面上提供压敏粘合剂层时,压敏粘合剂层提供在被粘物如车轮的表面上,并且该车辆制动盘防锈膜也可以粘合于该压敏粘合剂层的表面上。
实施例
以下参考实施例,对于本发明进行具体的描述。然而,本发明不受这些实施例的限制。
(实施例1)
表面基材膜的制备
通过将85质量份的具有0.928g/cm3密度的直链低密度聚乙烯树脂与15质量份的具有0.954g/cm3密度的高密度聚乙烯树脂混合来制备混合物。通过将所获得的混合物用作原料,用吹胀薄膜模塑机制备具有50μm的厚度和250MPa的拉伸弹性模量的聚乙烯树脂膜。
丙烯酸系共聚物的制备
在装有温度计、搅拌器、回流冷凝器管和氮气引入管的反应装置中加入54质量份的丙烯酸2-乙基己基酯,27质量份的丙烯酸乙酯,17质量份的乙酸乙烯酯,2质量份的丙烯酸和100质量份的乙酸乙酯,然后,所获得的反应混合物在聚合引发剂即偶氮二异丁腈的存在下进行共聚合反应,得到具有重均分子量800,000的丙烯酸系共聚物。
具有压敏粘合剂层的压敏粘合剂膜的制备
通过将5.0质量份的异氰酸酯型交联剂(商品名:Coronate L,由Japan Polyurethane Industry Co.,Ltd.制造)添加到100质量份的上述丙烯酸系树脂型压敏粘合剂的树脂组分中来制备混合物。所获得的混合物用Mayer涂棒在室温(25℃)下施涂到表面基材膜(它是上述聚乙烯树脂膜)的一个表面上,要求在干燥之后的涂敷量是25μm,和然后在40℃下干燥来制备交联的压敏粘合剂层。之后,防粘衬层的防粘层和上述压敏粘合剂层用层压机进行粘结来制备压敏粘合剂膜,其中防粘衬层(商品名:KGM-llS White,由Lintec Corp.制造)是通过将作为防粘剂的硅树脂涂敷在由不含木浆的纸张构成的载体的一个表面上形成防粘层所制备的产品。
(实施例2)
通过将70质量份的具有0.928g/cm3密度的低密度聚乙烯树脂与30质量份的具有0.954g/cm3密度的高密度聚乙烯树脂混合来制备混合物。通过将所获得的混合物用作原料,用吹胀薄膜模塑机制备具有50μm的厚度和340MPa的拉伸弹性模量的聚乙烯树脂膜。按照与实施例1中同样的方法制备压敏粘合剂膜,只是这一聚乙烯树脂膜用作表面基材膜。
(实施例3)
通过将55质量份的具有0.928g/cm3密度的低密度聚乙烯树脂与45质量份的具有0.954g/cm3密度的高密度聚乙烯树脂混合来制备混合物。通过将所获得的混合物用作原料,用吹胀薄膜模塑机制备具有50μm的厚度和380MPa的拉伸弹性模量的聚乙烯树脂膜。按照与实施例1中同样的方法制备压敏粘合剂膜,只是这一聚乙烯树脂膜用作表面基材膜。
(实施例4)
通过将70质量份的具有0.928g/cm3密度的低密度聚乙烯树脂与30质量份的具有0.954g/cm3密度的高密度聚乙烯树脂混合,然后进一步将10质量份的苯并三唑型紫外线吸收剂(2-(2’-羟基-3’-叔丁基-5’-甲基苯基)-5-氯苯并三唑,商品名:Tinuvin 326,由CibaSpecialty Chemicals Corp.制造)混合在100质量份的这些聚乙烯树脂中,来制备混合物。通过将所获得的混合物用作原料,用吹胀薄膜模塑机制备具有50μm的厚度,340MPa的拉伸弹性模量和在200-380nm的波长区域中低于1%的光谱透射率的聚乙烯树脂膜。按照与实施例1中同样的方法制备压敏粘合剂膜,只是这一聚乙烯树脂膜用作表面基材膜。
(对比实施例1)
通过使用具有0.928g/cm3的密度的低密度聚乙烯树脂作为原料,用吹胀薄膜模塑机来制备具有50μm厚度和210MPa的拉伸弹性模量的聚乙烯树脂膜。
压敏粘合剂膜的物理性能的测量
表面基材膜和在实施例和对比实施例中制备的压敏粘合剂膜进行下列拉伸弹性模量测量,压敏粘合剂强度测量,阳光老化试验机(以下缩写为SWOM)试验,和膜剥离试验以及在汽车运转之后的被粘物玷污试验(staining test)。所获得的结果示于表1。
(1)拉伸弹性模量的测量
从在上述实施例和对比实施例中制备的聚乙烯树脂膜上获得的样品根据JIS 7127进行拉伸弹性模量的测量。
(2)压敏粘合剂强度的测量
在上述实施例和对比实施例中制备的压敏粘合剂膜根据JISZ0237在23℃和50%RH的环境中进行该压敏粘合剂强度的测量,其中涂有油漆(商品名:Magicron ALC-2-1,由Kansai Paint Co.,Ltd.制造)的铝板用作被粘物。
(3)SWOM试验
在上述实施例和对比实施例中制备的压敏粘合剂膜在SWOM(商品名:Sunshine Super Long Life Weatherometer WEL-SUN-HCH,由SugaTest Instruments Co.,Ltd.制造)中500小时辐射之后进行以上述测量方法为基础的压敏粘合剂强度测量。
(4)在汽车运转后的膜剥离试验
在上述实施例和对比实施例中制备的压敏粘合剂膜之中的每一种粘附于汽车的铝车轮(商品名:Cercio,由Toyota Motor Corp.制造)的表面上;汽车在80千米/小时的速度下驱动60分钟,然后以下列标准来评价粘附的压敏粘合剂膜的剥离。
良好:没有剥离发生。
差:剥离发生。
(5)被粘物玷污试验
在上述实施例和对比实施例中制备的压敏粘合剂膜中的每一种被粘附于用涂有油漆(商品名:Magicron ALC-2-1,由Kansai Paint Co.,Ltd.制造)的铝板制备的被粘物上,然后按照粘附的状态进行SWOM试验;在SWOM试验500小时之后,将有压敏粘合剂膜的被粘物取出,并且将所粘附的压敏粘合剂膜从被粘物上剥离;以下列标准为基础来评价在剥离时被粘物的玷污状态。
良好:被粘物没有玷污。
差:被粘物被玷污。
表1
实施例1 | 实施例2 | 实施例3 | 实施例4 | 对比例1 | |
低密度聚乙烯树脂的含量(质量份) | 85 | 70 | 55 | 70 | 100 |
高密度聚乙烯树脂的含量(质量份) | 15 | 30 | 45 | 30 | - |
紫外线吸收剂(质量份) | - | - | - | 10 | - |
拉伸弹性模量(MPa) | 250 | 340 | 380 | 340 | 210 |
压敏粘合剂强度(N/25mm) | 5.1 | 5.5 | 5.9 | 5.6 | 4.5 |
在汽车运行之后的剥离 | 良好 | 良好 | 良好 | 良好 | 差 |
在SWOM试验500小时之后压敏粘合剂强度 | - | - | - | 5.8 | 6.7 |
(N/25mm) | |||||
在SWOM试验500小时之后被粘物玷污 | - | - | - | 良好 | 差 |
因为实施例1到3各自使用具有250到380MPa的拉伸弹性模量的膜作为表面基材膜,实施例1到3比使用具有210MPa的拉伸弹性模量的膜作为表面基材膜的对比例1具有更大的压敏粘合剂强度,并且与对比实施例1相反,在汽车运行时没有发生膜剥离。添加了紫外线吸收剂的实施例4没有导致压敏粘合剂强度的提高提高提高提高和在SWOM试验之后没有被粘物的玷污。相反地在对比实施例1中,在SWOM试验之后压敏粘合剂强度增长是显著的,并且观察到由于压敏粘合剂强度的内聚破坏所导致的被粘物玷污。
本发明的用于车辆制动盘防锈膜的表面基材膜能够用作车辆制动盘防锈膜。
Claims (4)
1.用于车辆制动盘防锈膜的表面基材膜,其特征在于具有220MPa或更高的拉伸弹性模量。
2.根据权利要求1的用于车辆制动盘防锈膜的表面基材膜,其中表面基材膜具有220到2200MPa的拉伸弹性模量。
3.根据权利要求1或2的用于车辆制动盘防锈膜的表面基材膜,其中表面基材膜包括0.01-20质量份/100质量份表面基材膜的比例的紫外线吸收剂,使得在200-380nm的波长区域中表面基材膜的光谱透射率是在0-20%之内。
4.车辆制动盘防锈膜,其特征在于在根据权利要求1到3中任何一项的表面基材膜的一个表面上包括压敏粘合剂层。
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JP2004079650 | 2004-03-19 | ||
JP079650/2004 | 2004-03-19 | ||
PCT/JP2005/005983 WO2005090453A1 (ja) | 2004-03-19 | 2005-03-22 | 自動車ブレーキディスクアンチラストフィルム用表面基材フィルム |
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CN1934172B CN1934172B (zh) | 2012-10-03 |
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US (2) | US20070202325A1 (zh) |
EP (1) | EP1741743B1 (zh) |
JP (1) | JP4785733B2 (zh) |
KR (1) | KR101146860B1 (zh) |
CN (1) | CN1934172B (zh) |
AU (1) | AU2005223608B2 (zh) |
BR (1) | BRPI0508947B1 (zh) |
CA (1) | CA2560251C (zh) |
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CN101993666A (zh) * | 2009-08-06 | 2011-03-30 | 日东电工株式会社 | 用于风力发电机叶片的保护膜 |
CN103254812A (zh) * | 2012-02-15 | 2013-08-21 | 日东电工株式会社 | 表面保护片 |
CN103254815A (zh) * | 2012-02-15 | 2013-08-21 | 日东电工株式会社 | 表面保护片 |
CN108223634A (zh) * | 2017-12-12 | 2018-06-29 | 朱文杰 | 一种合成闸瓦 |
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JP2010254916A (ja) | 2009-04-28 | 2010-11-11 | Nitto Denko Corp | 自動車ホイール用保護フィルム |
JP5601790B2 (ja) | 2009-04-28 | 2014-10-08 | 日東電工株式会社 | 自動車ホイール用保護フィルム |
JP5601791B2 (ja) | 2009-04-28 | 2014-10-08 | 日東電工株式会社 | 自動車ホイール用保護フィルム |
DE102016220960A1 (de) * | 2015-10-27 | 2017-04-27 | Showa Denko Packaging Co., Ltd. | Gehäuse für eine kleine elektronische Vorrichtung und Verfahren zum Herstellen dieser, und ein gewalztes Aluminiumlegierungsschichtblechmaterial für ein Gehäuse für eine kleine elektronische Vorrichtung |
CN107448517A (zh) * | 2016-05-30 | 2017-12-08 | 北京金风科创风电设备有限公司 | 刹车盘及刹车盘防腐处理方法 |
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- 2005-03-22 WO PCT/JP2005/005983 patent/WO2005090453A1/ja active Application Filing
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- 2005-03-22 KR KR1020067018497A patent/KR101146860B1/ko active IP Right Grant
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- 2005-03-22 AU AU2005223608A patent/AU2005223608B2/en not_active Ceased
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- 2005-03-22 JP JP2006511341A patent/JP4785733B2/ja active Active
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101993666A (zh) * | 2009-08-06 | 2011-03-30 | 日东电工株式会社 | 用于风力发电机叶片的保护膜 |
CN103254812A (zh) * | 2012-02-15 | 2013-08-21 | 日东电工株式会社 | 表面保护片 |
CN103254815A (zh) * | 2012-02-15 | 2013-08-21 | 日东电工株式会社 | 表面保护片 |
CN108223634A (zh) * | 2017-12-12 | 2018-06-29 | 朱文杰 | 一种合成闸瓦 |
CN108223634B (zh) * | 2017-12-12 | 2020-07-31 | 台州雪华制冷设备有限公司 | 一种合成闸瓦 |
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JPWO2005090453A1 (ja) | 2008-01-31 |
KR101146860B1 (ko) | 2012-05-16 |
DE602005017022D1 (de) | 2009-11-19 |
EP1741743A4 (en) | 2007-04-11 |
WO2005090453A1 (ja) | 2005-09-29 |
AU2005223608A1 (en) | 2005-09-29 |
EP1741743A1 (en) | 2007-01-10 |
US20100276073A1 (en) | 2010-11-04 |
KR20070017506A (ko) | 2007-02-12 |
CN1934172B (zh) | 2012-10-03 |
AU2005223608B2 (en) | 2010-08-12 |
US20070202325A1 (en) | 2007-08-30 |
CA2560251A1 (en) | 2005-09-29 |
CA2560251C (en) | 2012-07-10 |
BRPI0508947B1 (pt) | 2016-01-26 |
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JP4785733B2 (ja) | 2011-10-05 |
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