CAJ | 학술논문

采用AKD施胶方式提高无石棉纤维密封材料的抗水性能。研究向浆料中直接添加AKD乳液和用AKD对水洗高岭土进行改性两种施胶剂添加方式对材料抗水性能的影响。试验表明，湿部填加时，植物纤维配方与合成纤维配方相比，AKD的施胶效率更高。与传统植物纤维纸张相比，无石棉纤维密封材料中使用的填料量比较大，因此AKD的施胶效率较低。通过AKD对高岭土进行改性，在降低AKD用量的情况下，能够明显提高AKD的施胶效率。
채용AKD시효방식제고무석면섬유밀봉재료적항수성능。연구향장료중직접첨가AKD유액화용AKD대수세고령토진행개성량충시효제첨가방식대재료항수성능적영향。시험표명，습부전가시，식물섬유배방여합성섬유배방상비，AKD적시효효솔경고。여전통식물섬유지장상비，무석면섬유밀봉재료중사용적전료량비교대，인차AKD적시효효솔교저。통과AKD대고령토진행개성，재강저AKD용량적정황하，능구명현제고AKD적시효효솔。
AKD (Alkyl Ketene Dimer)size was used to improve the water-resistance of non-asbestos sealing materials. The effects on water resistance of the materials were evaluated for two different AKD addition modes,i. e,through internal addition and through clay modification. The results show that AKD is more effective with internal addition in the cellulose-containing furnish than in the aramid fiber-containing one. Compared to traditional papermaking process,the sizing efficien-cy in sealing materials is much lower,mainly because the fine filler content in the latter is much higher. Through clay mod-ification,the AKD sizing efficiency is markedly improved.