CN105860119A - 塑料表面的金属化处理方法 - Google Patents

塑料表面的金属化处理方法 Download PDF

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CN105860119A
CN105860119A CN201610231461.9A CN201610231461A CN105860119A CN 105860119 A CN105860119 A CN 105860119A CN 201610231461 A CN201610231461 A CN 201610231461A CN 105860119 A CN105860119 A CN 105860119A
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吴春刚
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GUANGXI LIUZHOU ZHONGJIA INTELLECTUAL PROPERTY RIGHTS SERVICE CO Ltd
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    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
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Abstract

本发明公开了一种塑料表面的金属化处理方法，涉及塑料制品技术领域，该方法包括以下步骤：对PVC塑料件进行前处理，去除表面的油污和灰尘；喷涂丙烯酸聚氨酯底漆，利用250～350nm的紫外光固化1～2min；将塑料件放入真空镀室内，充入惰性气体，使真空度达到3×10‑3～4×10‑3Pa，控制温度在60～65℃，匀速转动塑料件，调节等离子体的离子能量在90～100ev，轰击时间为5～8min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击3～4min；喷涂面漆，在60～65℃内烘干，并保温1～1.5h。本发明解决了现有塑料表面金属化处理存在金属镀层容易开裂、起皱的问题。

Description

塑料表面的金属化处理方法
技术领域
本发明涉及塑料制品技术领域，尤其是一种塑料表面的金属化处理方法。
背景技术
塑料因其质量轻、不会锈蚀、绝缘性好、导热性低、成本低等特点被广泛应用于生产或生活用品上。为了增强塑料制品的表面性能以及美观性，通常会对塑料制品表面进行装饰，除了进行涂装外，另一种常见的塑料表面装饰就是表面金属化。对塑料表面进行金属化处理，可以使塑料制品获得金属质感的外观，增加光泽，提高表面机械强度，延长使用寿命，并且获得导电性、导磁性和可电焊性，由此扩大了塑料制品的使用范围。现有的塑料金属化方法包括电镀和真空镀，因电镀方法的加工过程中会产生有毒有害物质而污染环境，且经常会产生镀层脱落、露黄、白雾、起泡、镀层粗糙、起毛刺等问题，因而现在的塑料表面金属化大多采用无公害、低能耗、成本低的真空镀，该方法是在真空环境下，将金属或金属氧化物气化，沉积在塑料表面形成金属膜。但是现有的真空镀工艺，因塑料在真空环境下容易放气，容易影响金属膜的质量，使镀层出现镀层产生开裂、起皱的问题。
发明内容
本发明的目的是提供一种塑料表面的金属化处理方法，这种方法可以解决现有塑料表面金属化处理存在金属镀层容易开裂、起皱的问题。
为了解决上述问题，本发明采用的技术方案是：这种塑料表面的金属化处理方法包括以下步骤：
A、对PVC塑料件进行前处理，去除表面的油污和灰尘；
B、喷涂丙烯酸聚氨酯底漆，利用250～350nm的紫外光固化1～2min；
C、将步骤B所得的塑料件放入真空镀室内，充入惰性气体，使真空度达到3×10-3～4×10-3Pa，控制温度在60～65℃，匀速转动塑料件，调节等离子体的离子能量在90～100ev，轰击时间为5～8min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击3～4min；
D、喷涂面漆，在60～65℃内烘干，并保温1～1.5h。
上述塑料表面的金属化处理方法的技术方案中，更具体的技术方案还可以是：步骤A的前处理时在40～50℃的水中，用28～40kHz的超声波清洗待处理的PVC塑料件3～5分钟，清洗完成后，用35～40℃的水喷淋1～2分钟，然后烘干。
进一步的，步骤B的底漆厚度为12-18um。
进一步的，步骤C的镀层厚度为0.04～0.1um。
进一步的，步骤D面漆的厚度为10～15 um。
由于采用了上述技术方案，本发明与现有技术相比具有如下有益效果：前处理可以提高涂膜的附着力，避免麻点的出现；喷涂丙烯酸聚氨酯底漆并固化，可以避免塑料内部的气体溢出，有利于后续真空镀的进行；镀层的附着力好，厚度均匀，不会出现镀层产生开裂、起皱的问题；前处理的工艺可以消除内应力，避免使用化学试剂。
具体实施方式
下面结合实施例对本发明作进一步详述：
实施例1
本实施例的塑料表面的金属化处理方法包括以下步骤：
A、对PVC塑料件进行前处理，以去除表面的油污和灰尘，在40℃的水中，用40kHz的超声波清洗待处理的PVC塑料件3分钟，清洗完成后，用35℃的水喷淋1分钟，然后烘干；
B、喷涂丙烯酸聚氨酯底漆，利用250nm的紫外光固化2min，底漆厚度为12um；
C、将步骤B所得的塑料件放入真空镀室内，充入惰性气体，使真空度达到3×10-3Pa，控制温度在60℃，匀速转动塑料件，调节等离子体的离子能量在90ev，轰击时间为8min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击3min，镀层厚度为0.04um；
D、喷涂面漆，在60℃内烘干，并保温1.5h，面漆的厚度为10 um。
实施例2
本实施例的塑料表面的金属化处理方法包括以下步骤：
A、对PVC塑料件进行前处理，以去除表面的油污和灰尘，在50℃的水中，用28kHz的超声波清洗待处理的PVC塑料件5分钟，清洗完成后，用35℃的水喷淋2分钟，然后烘干；
B、喷涂丙烯酸聚氨酯底漆，利用350nm的紫外光固化1min，底漆厚度为18um；
C、将步骤B所得的塑料件放入真空镀室内，充入惰性气体，使真空度达到4×10-3Pa，控制温度在65℃，匀速转动塑料件，调节等离子体的离子能量在100ev，轰击时间为5min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击4min，镀层厚度为0.1um；
D、喷涂面漆，在65℃内烘干，并保温1h，面漆的厚度为15 um。
实施例3
本实施例的塑料表面的金属化处理方法包括以下步骤：
A、对PVC塑料件进行前处理，以去除表面的油污和灰尘，在45℃的水中，用35kHz的超声波清洗待处理的PVC塑料件4分钟，清洗完成后，用38℃的水喷淋1.5分钟，然后烘干；
B、喷涂丙烯酸聚氨酯底漆，利用300nm的紫外光固化1.5min，底漆厚度为16um；
C、将步骤B所得的塑料件放入真空镀室内，充入惰性气体，使真空度达到3.5×10-3，控制温度在65℃，匀速转动塑料件，调节等离子体的离子能量在95ev，轰击时间为6min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击3.5min，镀层厚度为0.08um；
D、喷涂面漆，在60℃内烘干，并保温1.5h，面漆的厚度为12 um。

Claims (5)

1.一种塑料表面的金属化处理方法，其特征在于包括以下步骤：
A、对PVC塑料件进行前处理，去除表面的油污和灰尘；
B、喷涂丙烯酸聚氨酯底漆，利用250～350nm的紫外光固化1～2min；
C、将步骤B所得的塑料件放入真空镀室内，充入惰性气体，使真空度达到3×10-3～4×10-3Pa，控制温度在60～65℃，匀速转动塑料件，调节等离子体的离子能量在90～100ev，轰击时间为5～8min，随后熔料蒸镀金属或金属氧化物膜，镀完后用等离子体再轰击3～4min；
D、喷涂面漆，在60～65℃内烘干，并保温1～1.5h。
2.根据权利要求1所述的塑料表面的金属化处理方法，其特征在于：步骤A的前处理时在40～50℃的水中，用28～40kHz的超声波清洗待处理的PVC塑料件3～5分钟，清洗完成后，用35～40℃的水喷淋1～2分钟，然后烘干。
3.根据权利要求2所述的塑料表面的金属化处理方法，其特征在于：步骤B的底漆厚度为12-18um。
4.根据权利要求2所述的塑料表面的金属化处理方法，其特征在于：步骤C的镀层厚度为0.04～0.1um。
5.根据权利要求2所述的塑料表面的金属化处理方法，其特征在于：步骤D面漆的厚度为10～15 um。
CN201610231461.9A 2016-04-14 2016-04-14 塑料表面的金属化处理方法 Withdrawn CN105860119A (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423794A (zh) * 2016-10-28 2017-02-22 温州市亚宝眼镜有限公司 一种基于塑料的托叶保护方法
CN106929803A (zh) * 2016-10-25 2017-07-07 广东振华科技股份有限公司 塑料镀膜生产设备及其生产方法
CN108315708A (zh) * 2018-03-09 2018-07-24 佛山市顺德区捷飞汽车用品有限公司 一种透光电镀层的制作方法
CN109055908A (zh) * 2018-08-28 2018-12-21 杨胜 一种电子装备壳体表面镀层工艺
CN114921751A (zh) * 2022-05-13 2022-08-19 嘉兴敏惠汽车零部件有限公司 一种汽车外饰件金属效果的表面涂层方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259770A (zh) * 2007-03-05 2008-09-10 陶治中 具有导光镀覆层的塑料制品及其制备方法
CN102796986A (zh) * 2012-07-19 2012-11-28 四川长虹电器股份有限公司 真空连续金属化镀膜装饰工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101259770A (zh) * 2007-03-05 2008-09-10 陶治中 具有导光镀覆层的塑料制品及其制备方法
CN102796986A (zh) * 2012-07-19 2012-11-28 四川长虹电器股份有限公司 真空连续金属化镀膜装饰工艺

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929803A (zh) * 2016-10-25 2017-07-07 广东振华科技股份有限公司 塑料镀膜生产设备及其生产方法
CN106929803B (zh) * 2016-10-25 2019-10-29 广东振华科技股份有限公司 塑料镀膜生产设备及其生产方法
CN106423794A (zh) * 2016-10-28 2017-02-22 温州市亚宝眼镜有限公司 一种基于塑料的托叶保护方法
CN108315708A (zh) * 2018-03-09 2018-07-24 佛山市顺德区捷飞汽车用品有限公司 一种透光电镀层的制作方法
CN109055908A (zh) * 2018-08-28 2018-12-21 杨胜 一种电子装备壳体表面镀层工艺
CN109055908B (zh) * 2018-08-28 2020-11-10 淮北中易光电科技有限公司 一种电子装备壳体表面镀层工艺
CN114921751A (zh) * 2022-05-13 2022-08-19 嘉兴敏惠汽车零部件有限公司 一种汽车外饰件金属效果的表面涂层方法

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Application publication date: 20160817