CN108018552A - 汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件 - Google Patents

汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件 Download PDF

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CN108018552A
CN108018552A CN201611225357.5A CN201611225357A CN108018552A CN 108018552 A CN108018552 A CN 108018552A CN 201611225357 A CN201611225357 A CN 201611225357A CN 108018552 A CN108018552 A CN 108018552A
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plating
resin component
vehicle resin
application
electroplating method
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金铉庆
吴雨泽
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Sanxin Chemical Industry (plant)
Hyundai Motor Co
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Sanxin Chemical Industry (plant)
Hyundai Motor Co
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Abstract

本发明公开了汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件。具体地,本发明涉及一种汽车树脂部件的局部镀覆方法,其包括:涂装步骤,所述涂装步骤将镀覆用遮蔽涂料局部施用至注塑的汽车树脂产品的一侧表面上,从而形成施用镀覆用遮蔽涂料的涂装部分和未施用镀覆用遮蔽涂料的非涂装部分;以及湿式电镀步骤,所述湿式电镀步骤将用于湿式电镀的电流电极连接至非涂装部分上并进行湿式电镀,从而在除了涂装部分之外的汽车树脂部件的整个表面上形成镀覆层。

Description

汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂 部件
相关申请的交叉引用
本申请要求韩国专利申请No.10-2016-0143522的优先权,该申请的全部内容结合于此,以用于通过该引用的所有目的。
技术领域
本申请涉及局部镀覆方法,更特别地涉及汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件,该汽车树脂部件的局部镀覆方法能够将注塑的汽车树脂部件分为涂装部分和非涂装部分以局部施用涂料,并能够进行湿式电镀以因此使得仅部分汽车树脂部件被镀覆。
背景技术
在车辆的外面部分安装的外部组件包括保险杠、前栅格、环绕车身的组件、环绕轮胎的组件等等。根据能够表现出优良的强度、耐热性、比得上金属的导热性的塑料技术的发展,大部分这样的外部组件在车辆中使用塑料代替金属来作为轻质材料,用于提高燃料效率以满足环境规定,而且塑料在汽车部件中的使用逐步增加。
特别地,随着消费者对车辆外部组件的要求逐步多样化以及对于每位车辆制造商来说设计和功能存在差异,使得用于以下的塑料表面处理技术的重要性突显出来,即用于改进塑料组件的表观以使得产品设计多样化并提高品质,以及用于确保耐久性例如耐候性、耐热性、耐水性等以延长汽车部件的使用寿命并提高安全性的塑料表面处理技术。
为了通过依照产品多样化的尺寸和形状减少其它材料的消耗而减小产品的重量和成本,已开发表面处理技术例如涂装或镀覆并将其用作塑料表面处理技术,在涂装或镀覆中高光表面处理、无光表面处理、图样形成等仅在需要处理的部分上进行。
作为用于局部镀覆的现有表面处理技术的例子,日本专利公开特许公报No.1994-233950提出镀覆具有复杂形状的工件的方法,其通过使遮蔽材料大体上与工件连接,进行涂装,然后去除遮蔽材料来进行。在该情况中,然而因为涂装在遮蔽材料上进行,所以涂装区域过于巨大。因此,不可能减小重量和成本。此外,因为单独使用用于使遮蔽材料大体上连接的粘合剂,所以在镀覆之后的表观会有缺陷。
此外,韩国专利公布No.10-1018279公布用于塑料注塑产品的局部镀覆方法,其能够通过以下进行局部镀覆,即遮蔽在塑料注塑产品中待镀覆的部分,涂布经遮蔽的塑料注塑产品,然后进行镀覆。
但是,在韩国专利公布No.10-1018279中,遮蔽材料需要在每个组件前后部分形成装配结构,而且在每个组件前后部分的遮蔽材料外表上及在注塑产品内外部分上进行涂布过程。结果是,手工过程增加,这样使得生产率变差。此外,因为即使是在不需要被涂布的遮蔽材料外表上也进行涂布过程,所以涂布区域变得过于巨大,从而与下降的镀覆成本形成对比,其增加了涂布材料成本。另外,在湿式电镀过程中,因为待连接的电池的空间不足,所以电池连接部件不能在组件中恰当地形成,从而导致镀覆缺陷。
公开于该发明背景部分的信息仅仅旨在增加对本发明的总体背景的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
发明内容
本发明的各个方面旨在提供汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件,该汽车树脂部件的局部镀覆方法能够根据产品的各种形状将汽车树脂部件分为涂装部分和非涂装部分以通过隔挡来局部施用镀覆用遮蔽涂料,并能够进行湿式电镀以因此使得仅非涂装部分被镀覆,在非涂装部分不施用涂料。
本发明的其它目的和优势能够通过以下描述来理解,并且能够参照本发明的实施方案而趋于明显。而且,对于本发明涉及的本领域技术人员来说显而易见的是通过所要求保护的方案及其组合能够实现本发明的目的和优势。
根据本发明的示例性实施方案,汽车树脂部件的局部镀覆方法包括:涂装步骤S100,其仅在不需要镀覆的区域上局部施用镀覆用遮蔽涂料以形成涂装部分和非涂装部分,所述区域是在汽车树脂部件的一侧表面中,在涂装部分施用镀覆用遮蔽涂料,而在非涂装部分不施用镀覆用遮蔽涂料;以及湿式电镀步骤S200,其连接电流电极并进行湿式电镀以形成镀覆层,其中通过所述电流电极用于电镀的电流在非涂装部分上流动,所述镀覆层在除了涂装部分之外的汽车树脂部件的整个表面上形成。
在湿式电镀步骤S200中,镀覆层不会在涂装部分上形成,因为湿式电镀因镀覆用遮蔽涂料而不在涂装部分上进行。
在涂装步骤中,可将镀覆用遮蔽涂料以20至30μm,优选25μm的厚度施用至汽车树脂部件的表面上。
湿式电镀步骤可包括预处理步骤S210,其通过吸附金属催化剂而使化学镀活化,从而使得化学镀在汽车树脂部件的表面上进行;化学镀步骤S220,其通过借助金属催化剂使用化学镍而形成能够进行电镀的导体;以及电镀步骤S230,其使用铜(Cu)、镍(Ni)和铬(Cr)来镀覆经受化学镀步骤的汽车树脂部件。
在湿式电镀步骤中,预处理步骤可包括脱脂步骤S211,其在脱脂溶液中浸渍汽车树脂部件以将灰尘或油性物质从汽车树脂部件的表面去除;蚀刻步骤S212,其在蚀刻溶液中浸渍经脱脂的汽车树脂部件以在汽车树脂部件的表面上形成细槽;中和步骤S213,其使在汽车树脂部件的表面上残留的蚀刻溶液中和;以及活化步骤S214,其吸附细槽中的金属催化剂,所述细槽在蚀刻步骤中形成。
在涂装步骤之后且在湿式电镀步骤之前,可进一步包括干燥步骤,其通过热风干燥和自然干燥而使所施用的涂料干燥。可将所施用的涂料热风干燥30分钟并且自然干燥3分钟,但是干燥步骤并非限制于此,而可由本领域技术人员对其做不同的修改并进行该干燥步骤。
在汽车树脂部件的表面上施用的镀覆用遮蔽涂料可包含含聚合物树脂、有机溶剂、增塑剂和无机添加剂的镀覆用遮蔽树脂组合物。
在镀覆用遮蔽树脂组合物中,聚合物树脂可为聚氯乙烯(PVC)或聚氯乙烯(PVC)和乙烯-醋酸乙烯酯共聚物(EVA)的混合物。
有机溶剂可包含选自甲基异丁基酮、甲苯、正丁醇和乙酸乙酯的任一种或更多种。
增塑剂可为三辛基苯-1,3,5-三羧酸酯。
无机添加剂可包含选自钠(Na)、铝(Al)、钾(K)、钙(Ca)、钛(Ti)和铁(Fe)的任一种或更多种。
镀覆用遮蔽树脂组合物的浓度可为60wt%至99wt%,以镀覆用遮蔽涂料的总重量计。
根据本发明的另一示例性实施方案,使用如上所述的局部镀覆方法所形成的汽车树脂部件为以下的汽车部件,即在该汽车部件中仅在不需要镀覆的部分上局部施用镀覆用遮蔽涂料以形成涂装部分和非涂装部分,其中所述不需要镀覆的部分是在汽车树脂部件的一侧表面中,在涂装部分施用镀覆用遮蔽涂料,而在非涂装部分不施用镀覆用遮蔽涂料;并在该汽车部件中进行湿式电镀以在除了涂装部分之外的表面上形成镀覆层。
汽车树脂部件可为使用合成树脂所模制的部件,可优选包含散热器栅格或灯壳。这里,合成树脂可为丙烯腈-丁二烯-苯乙烯(ABS)树脂。
根据本发明示例性实施方案的局部镀覆方法并不受限用于以上所提出的部件,而可易于由本发明涉及的本领域技术人员用于各种汽车部件。
本发明的方法和装置具有其他的特性和优点,这些特性和优点将从并入本文中的附图和随后的具体实施方式中将是显而易见的,或者将在并入本文中的附图和随后的具体实施方式中进行更详细的陈述,这些附图和具体实施方式共同用于解释本发明的特定原理。
附图说明
图1示出根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法的工艺流程图。
图2示出根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法中湿式电镀步骤的工艺流程图。
图3示出将本发明的局部镀覆方法施用至作为汽车树脂部件的散热器栅格的示例的示意图。
图4是通过使用根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法所镀覆的产品图。
应当了解,附图并不必须是按比例绘制的,其示出了某种程度上简化表示的说明本发明基本原理的各个优选特征。在此所公开的本发明的特定的设计特征,包括例如特定的尺寸、定向、定位和形状,将部分地由特定目的的应用和使用环境所确定。
在这些附图中,在贯穿附图的多幅图形中,附图标记指代本发明的相同或等同的部分。
具体实施方式
现在将具体参考本发明的各个实施方案,在附图中和以下的描述中示出了这些实施方案的示例。虽然本发明与示例性实施方案相结合进行描述,但是应当了解,本说明书并非旨在将本发明限制为那些示例性实施方案。相反,本发明旨在不但覆盖这些示例性实施方案,而且覆盖可以被包括在由所附权利要求所限定的本发明的精神和范围之内的各种替换、修改、等效形式以及其它实施方案。
在本说明书中,应当注意用语“包含”、“包括”或“附加”等并非理解为必须包含所有的说明书中所描述的数种组件或数种步骤,而应当理解为可不包含某些以上的组件或步骤或者可进一步包含附加的组件或步骤。
此外,在根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法中,在本说明书中描述的每一步骤的重复次数、过程条件等并不受特别的限制,除非脱离本发明的目的。
图1和图2示出根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法的工艺流程图。如在图1中所示,根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法包括涂装步骤S100,其将涂料施用至汽车树脂部件的部分表面上;以及湿式电镀步骤S200。
作为例子,涂装步骤S100是仅在不需要镀覆的区域上局部施用镀覆用遮蔽涂料以将汽车树脂部件分为涂装部分和非涂装部分的步骤,其中所述区域是在使用丙烯腈-丁二烯-苯乙烯(ABS)树脂所模制的汽车树脂部件的一侧表面中,在涂装部分施用镀覆用遮蔽涂料,而在非涂装部分不施用镀覆用遮蔽涂料。
在涂装步骤中使用的镀覆用遮蔽涂料包含镀覆用遮蔽树脂组合物,其中镀覆用遮蔽树脂组合物包含聚合物树脂、有机溶剂、增塑剂以及无机添加剂。
聚合物树脂为聚氯乙烯(PVC)或聚氯乙烯(PVC)和乙烯-醋酸乙烯酯共聚物(EVA)的混合物。
在聚氯乙烯(PVC)和乙烯-醋酸乙烯酯共聚物(EVA)的混合物中,乙烯-醋酸乙烯酯共聚物(EVA)为聚氯乙烯的结合结构并有助于进行交联。
有机溶剂可为选自甲基异丁基酮、甲苯、正丁醇和乙酸乙酯的任一种,或者为它们中两种或更多种的混合物。
增塑剂可优选为三辛基苯-1,3,5-三羧酸酯。
无机添加剂可包含钠(Na)、铝(Al)、钾(K)、钙(Ca)、钛(Ti)和铁(Fe)。
作为例子,可以以如在下表1中所示的含量包含镀覆用遮蔽树脂组合物。
[表1]
镀覆用遮蔽涂料可进一步包含水,而且镀覆用遮蔽树脂组合物的含量为60wt%至99wt%,以镀覆用遮蔽涂料的总重量计。
当以镀覆用遮蔽涂料的总重量计,镀覆用遮蔽树脂组合物的含量小于60wt%时,因为为聚合物树脂的聚氯乙烯(PVC)的浓度低,所以涂料变得似水,这样使得因涂料向下流而难以进行涂装步骤,并且在进行湿式电镀时,在电流电极的连接部分产生镀覆隆起物。此外,当镀覆用遮蔽树脂组合物的含量大于99wt%时,因为聚氯乙烯(PVC)的浓度较高,所以经涂装的表面会不平滑而是粗糙的。
此外,在涂装步骤S100中,可将镀覆用遮蔽涂料选择性地施用至汽车树脂部件的表面上,其使用喷射法或根据用户的设定使用刷子进行。这里,以20至30μm,最优选25μm的厚度施用镀覆用遮蔽涂料。
当所施用的镀覆用遮蔽涂料厚度小于20μm时,因为涂料厚度薄,所以不能恰当地分开涂装部分和非涂装部分,这样使得不能控制镀覆层在涂装部分上的形成。结果是,不能恰当地进行局部镀覆。同时,当所施用的镀覆用遮蔽涂料厚度大于30μm时,用于增加涂料厚度的涂装操作次数增加,因此需要大量的时间用以进行这些操作。结果是,加工性和生产率会变差。
在涂装步骤S100之后,进行湿式电镀步骤S200。湿式电镀步骤S200是在汽车树脂部件的表面上形成镀覆层的步骤,如在图2中所示,其包括预处理步骤S210、化学镀步骤S220和电镀步骤S230以在汽车树脂部件的表面上形成镀覆层。
在预处理步骤S210中,可进行脱脂步骤S211、蚀刻步骤S212、中和步骤S213、活化步骤S214等。
脱脂步骤S211是将在汽车树脂部件的表面上残留的灰尘或油性物质去除的步骤。作为例子,在脱脂步骤中,可将合成树脂产品在脱脂溶液中浸渍5至10分钟以使合成树脂产品的表面脱脂,其中所述脱脂溶液通过使水和硅酸钠混合而制得,但是脱脂步骤并非限制于此。在各种条件下可将在表面上包含油的油性物质去除。
蚀刻步骤S212是在汽车树脂部件的表面上形成细槽以改进在经脱脂的汽车树脂部件上镀层粘合力的步骤,其通过在能够选择性地溶解ABS树脂的橡胶成分的蚀刻溶液中浸渍汽车树脂部件来进行,所述ABS树脂是用于汽车树脂部件的材料。此处所用的蚀刻溶液不受限,而可以使用以下的任一种,即只要其能够蚀刻包含ABS树脂材料的汽车树脂部件的表面。
在蚀刻步骤之后,可进行清洗步骤以去除在汽车树脂部件的表面上残留的蚀刻溶液,并且当即使是在清洗之后也没有完全去除蚀刻溶液时,可进行中和残留的蚀刻溶液的中和步骤S213。
活化步骤S214是吸附在蚀刻步骤S212中形成在汽车树脂部件的表面上的细槽中的金属催化剂的步骤,该活化步骤是在表面的细槽中产生例如金属钯成核作为金属催化剂的活化步骤,其使得随后的化学镀过程可在汽车树脂部件的表面上进行。
化学镀步骤S220是这样的步骤:通过使用钯(其通过预处理步骤在汽车树脂部件的表面上成核)作为催化剂和化学镍(Ni)(从而完全填充由蚀刻所形成的细槽)而开始化学镀,形成具有导电性的膜以形成能够进行电镀的导体。
接下来,电镀步骤S230是通过使用铜(Cu)、镍(Ni)和铬(Cr)来进行镀覆的步骤,其是连接电流电极并使用转移至电流电池的电流而进行镀覆的步骤,其中电流通过所述电流电极在非涂装部分上流动。
如在图2中所示,例如,在电镀步骤S230中,在汽车树脂部件的表面上镀铜(Cu)以起缓冲作用的铜镀步骤S231作为底漆涂布步骤,在该铜镀步骤S231之后,作为镍(Ni)镀步骤S232,可进行初次镍镀用以调整镀层的厚度和二次镍镀用以调整产品的光泽度。然后,进行镀铬(Cr)的铬(Cr)镀步骤S233,这样使得这些电镀过程连续进行从而形成镀覆层,其中该铬镀步骤S233作为面漆涂布步骤,所镀的铬在大气中几乎不变色,具有良好的外部表观并具有高硬度。这里,作为铬(Cr),可使用三价铬或六价铬。
通过如上所述的湿式电镀,汽车树脂部件可具有金属质感、精巧并且干净高品质的外部表观,其还具有良好的耐腐蚀性和良好的耐磨性。
通过最后用离子水清洗在其上进行湿式电镀的产品,将在经镀覆的产品表面上的污渍或外来杂质去除,然后在经最后清洗的产品上还进行包括脱水、热风干燥等的干燥过程。
在湿式电镀步骤S200中,在施用镀覆用遮蔽涂料的涂装部分上因镀覆用遮蔽涂料而没有进行化学镀和电镀,因此在涂装部分上没有形成镀覆层。
在下文,将描述使用前述汽车树脂部件的局部镀覆方法的汽车树脂部件。
图3示出将本发明的局部镀覆方法施用至作为汽车树脂部件的散热器栅格的示例。
如在图3中所示,描述表示为散热器栅格部分的部分(a)和部分(b)的横截面,所述散热器栅格为使用ABS树脂所注射成型的汽车树脂部件,以施用镀覆用遮蔽涂料的涂装部分形成部分(a)横截面的内侧,以未施用镀覆用遮蔽涂料的非涂装部分形成部分(b)横截面的内侧。因此,在涂装部分形成于部件横截面内侧的部分(a)的情况中,因为湿式电镀没有在部分(a)的内表面上进行,所以仅镀覆其未被涂装的外表面;而在非涂装部分形成于部件横截面内侧的部分(b)的情况中,外表面和内表面都被镀覆。
如在图3中所示,从“X”观察经局部镀覆的散热器栅格部分的外表面,而从“Y”观察其内表面,可理解的是仅进行局部涂装的内表面被局部镀覆,而未形成涂装部分的外表面被全部镀覆。
在如上所述的局部涂装和局部镀覆中,提到的外表面和内表面可相互对调,本发明并不受限于此。
图4是使用如上所述汽车树脂部件的局部镀覆方法的汽车树脂部件图。
在图4中左图示出将镀覆用遮蔽涂料局部施用至汽车树脂部件的表面上的情况,而在图4中右图示出在局部施用镀覆用遮蔽涂料之后进行湿式电镀的情况。
如在图4中所示,涂装部分是施用涂料的部分,其为有点的部分,可理解的是在局部施用镀覆用遮蔽涂料,然后进行湿式电镀的情况中,镀覆没有在施用镀覆用遮蔽涂料的部分上进行,而是仅在未施用涂料的部分上进行。
如上所述,在根据本发明示例性实施方案的汽车树脂部件的局部镀覆方法中,将在湿式电镀过程中未被化学镀和电镀的镀覆用遮蔽涂料仅局部施用至无需被镀覆的区域上,从而仅在除了涂装部分之外的表面上形成镀覆层,这样使得与相关的技术相较而言镀覆可更有效地在精细的部分上进行镀覆,使得有可能制备响应用户的要求并解决涂布区域过于巨大的问题的各种汽车部件。
此外,通过局部施用涂料和进行湿式电镀,与相关的技术相较而言可以更有效地在精细的部分上进行镀覆,提供响应用户的各种要求的汽车树脂部件。
根据如上所述本发明的汽车树脂部件的局部镀覆方法,当将可具有各种形状并由合成树脂形成的汽车树脂部件分为涂装部分和非涂装部分,将镀覆用遮蔽涂料局部施用至汽车树脂部件上,然后进行局部镀覆时,因为在所述涂装部分施用镀覆用遮蔽涂料,化学镀和电镀在湿式电镀过程中因该镀覆用遮蔽涂料而没有在涂装部分上进行,所以镀覆层没有在涂装部分上形成,这样使得经镀覆的区域减小。结果是,可以解决根据相关技术的以下问题,即由于涂布区域过于巨大,所以与下降的镀覆成本形成对比,涂布材料成本增加。
此外,通过对每个部件不使用单独的遮蔽材料,根据相关的技术当使用遮蔽材料时由于因空间不足导致用于电镀的电极未被恰当连接而引起的镀覆缺陷问题可得以解决,并使得有可能大量生产。
此外,通过局部施用涂料和进行湿式电镀,与相关的技术相较而言可以更有效地在精细的部分上进行镀覆,提供响应用户各种要求的汽车部件并促进大量生产。
此外,根据如上所述本发明示例性实施方案的汽车树脂部件的局部镀覆方法是具有高度工业适用性的技术,因此除了汽车部件的领域外,其还可用于不同的各种领域。
前述对本发明的具体示例性实施方案的描述是为了说明和例证的目的。这些描述并非想穷尽本发明,或者将本发明限定为所公开的精确形式,并且很显然,根据上述教导,可以进行很多改变和变化。对示例性实施例进行选择和描述的目的在于解释本发明的特定原理及其实际应用,从而使得本领域的其它技术人员能够实现并利用本发明的各种示例性实施方案以及其各种替代选择和改变。本发明的范围意在由所附的权利要求书及其等同形式所限定。

Claims (10)

1.一种汽车树脂部件的局部镀覆方法,其包括:
涂装步骤,所述涂装步骤将镀覆用遮蔽涂料局部施用至注塑的汽车树脂产品的一侧表面上,从而形成施用镀覆用遮蔽涂料的涂装部分和未施用镀覆用遮蔽涂料的非涂装部分;以及
湿式电镀步骤,所述湿式电镀步骤将用于湿式电镀的电流电极连接至非涂装部分上并进行湿式电镀,从而在除了涂装部分之外的汽车树脂部件的整个表面上形成镀覆层。
2.根据权利要求1所述的汽车树脂部件的局部镀覆方法,其中在湿式电镀步骤中,在涂装部分上不进行湿式电镀。
3.根据权利要求1所述的汽车树脂部件的局部镀覆方法,其中在涂装步骤中,将镀覆用遮蔽涂料以20至30μm的厚度施用至所模制的汽车树脂部件的表面上。
4.根据权利要求1所述的汽车树脂部件的局部镀覆方法,其中湿式电镀步骤包括:
预处理步骤,所述预处理步骤通过吸附金属催化剂而使化学镀活化,从而使得化学镀在汽车树脂部件的表面上进行;
化学镀步骤,所述化学镀步骤通过借助金属催化剂使用化学镍而形成为进行电镀所构造的导体;以及
电镀步骤,所述电镀步骤使用铜Cu、镍Ni和铬Cr来镀覆经受化学镀步骤的汽车树脂部件。
5.根据权利要求1所述的汽车树脂部件的局部镀覆方法,其中镀覆用遮蔽涂料包含镀覆用遮蔽树脂组合物,所述镀覆用遮蔽树脂组合物包含聚合物树脂、有机溶剂、增塑剂和无机添加剂,而所述聚合物树脂为聚氯乙烯PVC或聚氯乙烯PVC和乙烯-醋酸乙烯酯共聚物EVA的混合物。
6.根据权利要求5所述的汽车树脂部件的局部镀覆方法,其中所述有机溶剂包含选自甲基异丁基酮、甲苯、正丁醇和乙酸乙酯的任一种或更多种。
7.根据权利要求5所述的汽车树脂部件的局部镀覆方法,其中所述增塑剂为三辛基苯-1,3,5-三羧酸酯。
8.根据权利要求5所述的汽车树脂部件的局部镀覆方法,其中所述无机添加剂包含选自钠Na、铝Al、钾K、钙Ca、钛Ti和铁Fe的任一种或更多种。
9.根据权利要求5所述的汽车树脂部件的局部镀覆方法,其中所述镀覆用遮蔽树脂组合物的浓度为60wt%至99wt%,以镀覆用遮蔽涂料的总重量计。
10.一种汽车树脂部件,其中将镀覆用遮蔽涂料局部施用至汽车树脂部件的一侧表面上,从而形成施用镀覆用遮蔽涂料的涂装部分和未施用镀覆用遮蔽涂料的非涂装部分;并进行湿式电镀,从而在除了涂装部分之外的表面上形成镀覆层。
CN201611225357.5A 2016-10-31 2016-12-27 汽车树脂部件的局部镀覆方法及使用其所镀覆的汽车树脂部件 Pending CN108018552A (zh)

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