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以橡胶原料为基材、改性胶原纤维为吸波剂,通过混炼、热压成形的方法制备一种新的结构型吸波材料,并对其吸波性能和机械强度进行研究。实验结果表明:胶原吸波剂可均匀地分布在橡胶基材中形成结构型吸波材料,可见实验所用的方法适合于胶原吸波剂与橡胶基材的复合;复合材料有较好的吸波作用,吸波剂含量50%、厚度为2mm的材料对电磁波的最大反射损失为8.62dB、吸收强度大于5dB的频宽为3.2GHz;胶原吸波剂与橡胶基材复合后机械强度明显提高,与胶原吸波材料相比,复合吸波材料的抗张强度提高27.6%、撕裂强度提高99.6%;复合材料的吸波性能、机械强度与胶原吸波剂的含量有关,随着吸波剂含量的增加,吸波性能改善但机械强度减弱。
Taking rubber raw material as base material and modified collagen fiber as absorbing agent, a new type of structure absorbing material was prepared by means of mixing and thermoforming, and its microwave absorbing property and mechanical strength were studied. The experimental results show that: the collagen absorbing agent can be evenly distributed in the rubber substrate to form a structural absorbing material, showing that the method used in the experiment is suitable for the composite of a collagen absorbing agent and a rubber substrate; the composite material has a better absorbing wave The maximum reflection loss of electromagnetic wave is 8.62dB and the bandwidth of absorption intensity greater than 5dB is 3.2GHz; the mechanical strength of the composite material of the collagen absorbing agent and the rubber substrate is obviously improved, Compared with the collagen material, tensile strength and tear strength of the composite material were increased by 27.6% and 99.6% respectively. The microwave absorbing property and mechanical strength of the composite were related to the concentration of the absorbing agent. With the increase of content, the absorbing performance is improved but the mechanical strength is weakened.