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在材料科学这个领域中,长期以来人们研究的是材料本身的性质而不大考虑材料表面的性质。近二、三十年来人们才愈来愈认识到材料表面的物理、化学性质与其内部是有所不同的,而且实质上是各种界面的性质(气-气、气-液、气-固、液-固、固-固)。在复合材料中研究各组合物间的界面性质是十分重要的,例如:1.复合材料中纤维和填料的表面积都十分巨大。1克温石棉纤维的表面积有1.7～60米~2,1厘米~3玻璃纤维增强塑料中纤维表面积有1000厘米~2,活性二氧化硅的表面积
In the field of materials science, the nature of the material itself has long been studied without much regard for the surface properties of the material. In the past two or three decades, people realized more and more that the physical and chemical properties of the surface of the material are different from those of the interior, and are essentially the properties of various interfaces (gas-gas, gas-liquid, gas- Liquid - solid, solid - solid). It is important to study the interfacial properties of the compositions in the composite material, for example: 1. The surface area of the fibers and fillers in the composite material is very large. 1 gram asbestos fiber surface area of 1.7 ~ 60 m ~ 2,1 cm ~ 3 fiberglass reinforced plastic fiber surface area of 1000 cm ~ 2, the surface area of active silica