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Simple and fast preparation of graphene oxide@ melamine terephthaldehyde and its PVC nanocomposite via ultrasonic irradiation: Chemical, mechanical and thermal resistance Study
Ultrasonics Sonochemistry ( IF 8.7 ) Pub Date : 2017-12-29 , DOI: 10.1016/j.ultsonch.2017.12.049
Mahroo Khaleghi , Khadijeh Didehban , Meisam Shabanian

Melamine terephthaldehyde modified graphene oxide (MTR-GO) with optimum content was easily prepared via ultrasonication method and used as anti-corrosion additive for Poly (vinyl chloride) (PVC). The effects of ultrasonicated MTR-GO on the mechanical, chemical and thermal resistance of the PVC were thoroughly studied. Change percentage of tensile strength and weight change percentage of PVC (P) and PVC/MTR-GO nanocomposite (PN) in acetone and sodium hypochlorite (NaClO) media at two different exposure temperature (20°C and 50°C) were examined. The PN sample showed lower change loss percentage of tensile strength in acetone uptake as compared with P sample at 20°C. In higher temperature (50°C), P sample was decomposed while PN still showed tensile data. The change loss percentage in tensile strength of PN sample showed 13% change at 50°C in sodium hypochlorite while P sample showed 63% change for the parameter. Protective behavior of MTR-GO nanofiller on PVC matrix against thermal HCl releasing was investigated by Congo red tests. The results showed that the nanocomposite release less amount of HCl as compare to the neat PVC.



中文翻译:

超声波辐照简单快速制备氧化石墨烯@三聚氰胺对苯二甲酸及其PVC纳米复合材料:化学,机械和耐热性研究

通过超声方法可以轻松地制备出具有最佳含量的三聚氰胺对苯甲醛改性的氧化石墨烯(MTR-GO),并用作聚氯乙烯(PVC)的防腐添加剂。彻底研究了超声波MTR-GO对PVC的机械,化学和耐热性的影响。在两种不同的暴露温度(20°C和50°C)下,研究了丙酮和次氯酸钠(NaClO)介质中PVC(P)和PVC / MTR-GO纳米复合材料(PN)的拉伸强度变化和重量变化百分比。与在20°C下的P样品相比,PN样品在丙酮吸收中显示出较低的拉伸强度变化损失百分比。在较高温度(50°C)下,P样品分解,而PN仍显示拉伸数据。次氯酸钠在50°C下PN样品的拉伸强度变化损失百分数显示13%的变化,而P样品的参数变化为63%。通过刚果红试验研究了MTR-GO纳米填料对PVC基体的热HCl释放的保护作用。结果表明,与纯PVC相比,纳米复合材料释放的HCl量更少。

更新日期:2017-12-31
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