This study mainly concerns the role of foam heating process techniques and its impact on cellular micromorphology, density and gas liberation mechanism of natural rubber foam with distilled water as blowing agent. Three different modes of heating process techniques and varying amount of distilled water have been examined on the foam density and cellular morphology, having rather identical morphological formation, cell distribution and relatively reducing densities but significant cell wall thickness. It is deduced that the increase in the water loading substantially affects the decrease in the foam densities, cell uniformity and stability. However, the heating process techniques influence the cell distribution and stability more than the amount of water content loading. The combine microwave oven process technique has improved the process of moisture diffusion into the water-blown open cell natural rubber foam unlike the slower procedure of conventional heating technique. In addition, the natural rubber foam physical properties and microstructure is improved better than the conventional heating technique. In all the simultaneous combine microwave oven technique is the best among the evaluated technique from the experiment because of density increment, cell distribution, pores flaccidity and uniform cells.

这项研究主要涉及泡沫加热工艺技术的作用及其对以蒸馏水为发泡剂的天然橡胶泡沫的细胞微观形态，密度和气体释放机理的影响。在泡沫密度和泡孔形态上已经研究了三种不同的加热工艺技术模式和不同数量的蒸馏水，它们具有相当相同的形态形成，泡孔分布和相对降低的密度，但是泡孔壁厚却很大。可以推断出，水负荷的增加基本上影响泡沫密度，泡孔均匀性和稳定性的降低。但是，加热过程技术对电池分布和稳定性的影响大于含水量的加载量。与常规加热技术的较慢过程不同，联合微波烤箱工艺技术改善了水分扩散到水吹开孔天然橡胶泡沫中的过程。另外，天然橡胶泡沫的物理性能和微观结构比常规加热技术更好地改善。在所有同时进行的联合微波烤箱技术中，由于密度增加，细胞分布，孔隙松弛和细胞均匀，在实验评估的技术中是最好的。