For the traditional processing of polymers, a high temperature, generally above 200 °C, is needed to melt the polymers. The high temperature not only causes a large amount of energy consumption but also thermal degradation of the polymers. In this work, we have prepared a representative baroplastic poly(n-butyl acrylate)@polystyrene (PBA@PS) core–shell polymer, which can be processed at a much lower temperature multiple times to overcome the above-mentioned problems. To address their poor mechanical property issue, such as weak strength and low modulus, we introduced stronger hydrogen bonds of agar into PBA@PS matrix. The results show that the PBA@PS/agar composites possess significantly improved strength and ultrahigh modulus, much higher than that of previously reported core–shell baroplastics. The tensile strength and Young’s modulus are as high as 8.4 and 350.6 MPa, respectively, which are enhanced by 265 and 4702% compared with the pure PBA@PS baroplastic. The reinforcement results from the hydrogen bonds of agar. In addition, the baroplastics can be repeatedly processed at 100 °C at the same condition with a small loss of mechanical properties. This work provides a way to strengthen the baroplastics and thus increases their application potential.

中文翻译：

---

具有与琼脂的氢键相互作用的超高强度和模量的热塑性塑料

对于聚合物的传统加工，通常需要高于200°C的高温才能熔化聚合物。高温不仅引起大量的能量消耗，而且引起聚合物的热降解。在这项工作中，我们已经准备了一个代表性的压塑性塑料聚（ñ丙烯酸丁酯）@聚苯乙烯（PBA @ PS）核-壳聚合物，可以在低得多的温度下进行多次加工以克服上述问题。为了解决它们较差的机械性能问题，例如强度低和模量低，我们将琼脂的较强氢键引入PBA @ PS基质中。结果表明，PBA @ PS /琼脂复合材料具有显着改善的强度和超高模量，远高于以前报道的核壳型重塑塑料。拉伸强度和杨氏模量分别高达8.4和350.6 MPa，与纯PBA @ PS重塑剂相比，分别提高了265和4702％。增强来自琼脂的氢键。此外，可以在相同条件下于100°C重复加工重塑剂，但机械性能损失很小。这项工作提供了一种方法来加强压力塑料，从而增加其应用潜力。