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微孔橡胶同海綿橡胶一样,都是多孔性橡胶。但是海綿橡胶的气孔大而不均匀,质地松軟,只能作鞋垫。微孔橡胶的孔眼很小,孔徑在0.4微米左右(1微米=千分之一毫米),也比較均匀,既有彈性,又有足够的硬度,很适合作鞋底。用微孔橡胶作的鞋匠,穿起来不但很舒适輕便,而且很耐磨。用同一种橡胶作的微孔底和普通底,前者比后者可
Microporous rubber, like sponge rubber, is a porous rubber. However, the sponge rubber has large and uneven pores and is soft and can only be used as an insole. Microporous rubber has small holes and a pore size of about 0.4 μm (1 μm = 1/1000 mm). It is also relatively uniform, has both elasticity and sufficient hardness, and is suitable for shoe soles. Shoemakers made of microporous rubber are not only comfortable to wear, but also very wear-resistant. With the same kind of rubber microporous bottom and common bottom, the former than the latter