Due to its glass-like transparency and near-glass density, along with the absence of bisphenol A, excellent food safety, and superior flame resistance, PCTG has previously found extensive applications in cosmetics packaging and plastic drinkware.
Taking Eastman’s TRITAN as an example, it exhibits 15 to 20 times greater toughness than conventional polypropylene, superior heat resistance compared to standard PCTG, and is free from bisphenol A, effectively preventing leaks and cracks while ensuring high safety. Additionally, its excellent UV resistance provides protection against light exposure and degradation.
In the realm of electronic cigarettes, PCTG is most commonly utilized for e-liquid reservoirs due to its impressive adhesion, transparency, chemical resistance, and ability to resist stress whitening.
Initially, to address the inevitable oxidation and discoloration of e-liquid over time, e-liquid reservoirs were predominantly made from black, translucent PCTG. However, as the market evolved, transparent PCTG began to be directly employed for e-liquid reservoirs, finding applications not only in pod systems but also in disposable vape devices.
透明烟弹
透明烟弹
一次性烟异形油杯，联臻光电
如果说在油杯上应用是主要考虑PCTG的耐化学、耐高温性能，那开始在烟杆外壳上应用就还得思量它的透明性，从一些产品案例来看，透明外壳所带来的设计美以及科技感是非同一般的。
当然，PCTG的价格限制了众多厂商考虑用它来做烟杆外壳，转而选择其他透明塑料方案，比如PP、PC，被用在发光一次性烟上倒是不少。至于换弹烟、大烟甚至HNB烟具，则相对少见了。
艾邦综合网络整理，旨在材料应用简讨，仅供参考
原文始发于微信公众号（艾邦新消费电子资讯）：The application of transparent PCTG in electronic cigarettes: from the e-liquid reservoir to the outer casing of the device.
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