Abstract
ABS Plastic (Acrylonitrile Butadiene Stiren) is one type of plastic that is often used because of the many properties that are beneficial to humans. ABS plastic is widely used in engineering, for example in the electronics and automotive fields. But there are still disadvantages of ABS plastic, including low hardness, no friction resistance, and no heat resistance, so surface treatment is needed. Electrolessplating is a coating process that does not use electricity in the coating process. This study aims to determine the effect of temperature and time variation of nickel electrolessplating etching on roughness, wear, hardness, and thickness. The variation in etching temperature is 30; 40; 50; 60; and 70oC and the etching time is 15, 20, 25, 30 and 35 minutes followed by electrolesplating using nickel for 10 minutes. The tests carried out were surface roughness test, disk on block method wear test, hardness using Shore Durometer tool, and layer thickness using micro photos and scanning electron microscopy (SEM). The results showed that the etching process from electrolyplating affected the specimen surface to be coated with nickel metal. The longer the etching time causes the surface to become coarser from 0.435 μm at 15 minutes to 0.949 μm in 35 minutes. The temperature addition of the etching process will increase the surface surface to a temperature of 50oC at 0.499 μm and then drop. Increasing etching time from 15 minutes to 35 minutes will reduce specific wear, from 1.268 x 10-4 mm2 / kg to 0.465 x 10-4 mm2 / kg. Likewise, the etching temperature from 30oC to 70oC decreases the specific wear from 2.10 x 10-4 mm2 / kg to 0.255 x 10-4 mm2 / kg. The addition of etching and temperature etching time does not significantly increase the hardness value of electrolessplating results. Hardness of raw material is 83.5 shore D after coating the hardness value to 84.7 shore D. The electrolessplating process for 10 minutes produces a layer thickness of 1 μm to 2 μm.
Highlights
ABS Plastic (Acrylonitrile Butadiene Stiren) is a type of plastic used in the electronics and automotive industries because it has strong, hard and easy to color properties, but has disadvantages such as flammability, low deformation temperature and soluble . surface treatment is needed
This study aims to determine the effect of etching temperature variations, namely 30; 40; 50; 60; and 70 ͦC and the etching time of 15, 20, 25, 30 and 35 minutes followed by electroessing nickel for 10 minutes
[6] Tang, C., M., Bi, C., Yan, L., Zhang, B., “Research on a new surface activation process for electroless plating on ABS plastic,” Materials Letters, 5(11): 1089-1091, 2008
Summary
Plastik ABS (Akrilonitril Butadiena Stiren) adalah jenis plastik yang digunakan dalam bidang industri elektronik dan otomotif karena memiliki sifat tangguh, keras, dan mudah diwarnai, namun memiliki kekurangan seperti mudah terbakar, suhu deformasi rendah dan mudah larut. maka diperlukan perlakuan permukaan. Penelitian ini bertujuan untuk mengetahui pengaruh variasi temperatur etching yaitu 30; 40; 50; 60; dan 70 ͦC dan waktu etching yaitu 15, 20, 25, 30 dan 35 menit dilanjutkan elektrolessplating nikel selama 10 menit. Pengujian yang dilakukan adalah kekasaran permukaan, keausan metode disk on block, kekerasan menggunakan Shore Durometer, dan ketebalan lapisan. Peningkatan temperatur etching meningkatkan kakasaran permukaan sampai temperatur 50 ͦC sebesar 0,499 μm kemudian turun. Peningkatan waktu etching dari 15 menit sampai 35 menit akan menurunkan keausan spesifik, dari 1,268 x 10-4 mm2/kg menjadi 0,465 x 10-4 mm2/kg. Begitu juga untuk temperature etching dari 30 ͦC sampai 70 ͦC menurunkan keausan spesifik dari 2,10 x 10-4 mm2/kg menjadi 0,255 x 10-4 mm2/kg. Waktu etching dan temperature etching tidak signifikan meningkatkan nilai kekerasan hasil electrolessplating di mana kekerasan raw material 83,5 shore D dan setelah dilakukan pelapisan menjadi 84,7 shore D.
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