CAJ | 학술논문

以自制碳包覆铜镍合金纳米粒子为填料,醇酸树脂为成膜剂,共混制备了碳包覆铜镍合金纳米粒子/醇酸树脂导电复合涂料.X射线衍射分析和透射电子显微镜观察表明,碳包覆铜镍合金纳米粒子为核壳结构,核为铜-镍合金,壳为石墨化碳.分别添加占涂料总质量的3%﹑5%﹑10%﹑15%及20%(质量分数)的填料制备涂料,探讨了碳包覆铜镍合金纳米粒子添加量对涂料性能的影响.并对所制备涂料的黏度﹑导电性,漆膜附着力﹑吸波性进行了表征测试.结果表明,随着碳包覆铜镍合金纳米粒子添加量增加,涂料黏度单调增大,电阻单调减小,最大粘度为180 mm2/s,最小电阻为2×107Ω.当碳包覆铜镍合金纳米粒子质量分数为15%时漆膜附着力最佳,脱落面积综合评定等级为0；当质量分数为20%时,漆膜有较好吸波性能,反射损耗峰值为-2.7 dB,吸收带宽为2 GHz(14~16 GHz).
이자제탄포복동얼합금납미입자위전료,순산수지위성막제,공혼제비료탄포복동얼합금납미입자/순산수지도전복합도료.X사선연사분석화투사전자현미경관찰표명,탄포복동얼합금납미입자위핵각결구,핵위동-얼합금,각위석묵화탄.분별첨가점도료총질량적3%﹑5%﹑10%﹑15%급20%(질량분수)적전료제비도료,탐토료탄포복동얼합금납미입자첨가량대도료성능적영향.병대소제비도료적점도﹑도전성,칠막부착력﹑흡파성진행료표정측시.결과표명,수착탄포복동얼합금납미입자첨가량증가,도료점도단조증대,전조단조감소,최대점도위180 mm2/s,최소전조위2×107Ω.당탄포복동얼합금납미입자질량분수위15%시칠막부착력최가,탈락면적종합평정등급위0；당질량분수위20%시,칠막유교호흡파성능,반사손모봉치위-2.7 dB,흡수대관위2 GHz(14~16 GHz).
Conductive composite coatings were prepared by using the carbon encapsu1ated copper nicke1 a11oy nanopartic1es as fi11ers and the a1kyd resins as fi1m formers. Characterized by X-ray diffraction and transmis-sion e1ectron microscope, the nanopartic1es of carbon encapsu1ated copper nicke1 a11oy show core-she11 structures with copper nicke1 a11oy as the core and graphitized carbon as the she11s. The coatings were pre-pared respective1y with the fi11er mass fraction of 3%, 5%, 10%, 15% and 20% . The effect of fi11er mass fraction on the performances of the coatings, inc1uding the e1ectric and absorption properties, the viscosity and the adhesion was ana1yzed. The resu1ts suggest that the viscosity increases monotonous1y whi1e the resis-tance decreases monotonous1y with the increase of the fi11er mass fraction, in which the maximum viscosity is 180 mm2/s and the minimum resistance is 2×107Ω. The adhesive force of the coating is best and reaches de-gree 0 when the fi11er addition is 15%. The coatings have exce11ent microwave absorbing properties with the ref1ection 1oss of-2.7 dB and the bandwidth of 2 GHz (14-16 GHz) at the fi11er mass fraction of 20%.