Graphene oxide (GO) has been considered as a promising nanofiller to reinforce water-borne polymer due to its exceptional mechanical properties and good dispersibility in an aqueous solution. However, the re-aggregation of hydrophilic GO sheets in a hydrophobic polymer matrix with the evaporation of water, resulting from remarkable discrepancy of the interfacial energy, remains a significant challenge to achieve the high-performance GO-based polymer nanocomposites. Herein, the amphiphilic graphene oxide (AGO) rather than the conventional GO is applied to enhance the mechanical properties of natural rubber latex (NRL) through simple solution blending. Our results show that the AGO demonstrates not only good dispersibility in the NRL aqueous solution but also strong hydrophobic interaction with the NRL particles. Benefiting from this amphiphilic character, the good dispersibility of AGO in the NRL matrix is realized after the oven-drying process, leading to a simultaneous enhancement in tensile strength (up to 35 MPa) and elongation at break (up to 1100%). In particular, it is found that the NRL tube, a kind of catheter, demonstrates a remarkable improvement in both blasting pressure, blasting volume with just a small amount addition of AGO (as less as 0.1%). This work provides a simple, green, and efficient route to fabricate high-performance polymer latex/graphene nanocomposites.

氧化石墨烯（GO）由于其优异的机械性能和在水溶液中的良好分散性，被认为是一种很有前途的纳米填料，可增强水性聚合物。然而，由于界面能的显着差异，亲水性 GO 片在疏水性聚合物基质中的重新聚集和水分蒸发，仍然是实现高性能 GO 基聚合物纳米复合材料的重大挑战。在此，两亲性氧化石墨烯（AGO）而不是传统的 GO 用于通过简单的溶液共混来增强天然橡胶胶乳（NRL）的机械性能。我们的结果表明，AGO 不仅在 NRL 水溶液中表现出良好的分散性，而且与 NRL 颗粒具有很强的疏水相互作用。得益于这种两亲特性，AGO 在 NRL 基质中的良好分散性在烘箱干燥过程后实现，从而同时提高了拉伸强度（高达 35 MPa）和断裂伸长率（高达 1100%）。特别是发现，NRL 管是一种导管，只需添加少量 AGO（低至 0.1%），即可显着提高爆破压力和爆破量。这项工作为制造高性能聚合物乳胶/石墨烯纳米复合材料提供了一种简单、绿色和有效的途径。表明仅添加少量 AGO（低至 0.1%）即可显着提高爆破压力和爆破量。这项工作为制造高性能聚合物乳胶/石墨烯纳米复合材料提供了一种简单、绿色和有效的途径。表明仅添加少量 AGO（低至 0.1%）即可显着提高爆破压力和爆破量。这项工作为制造高性能聚合物乳胶/石墨烯纳米复合材料提供了一种简单、绿色和有效的途径。