甲基纤维素(Methyl cellullose,简称 MC)水溶液有一个奇特的现象:当温度升高到一定程度后,透明的溶液开始出现乳白色,继而乳白色加重,粘度突然增加,最后体系失去流动性。若使体系冷却,粘度又开始下降,乳白色渐渐退去,直到恢复为透明溶液。这就是 MC 水溶液的凝胶现象,它与绝大多数聚合物溶液凝胶现象的不同在于:温度的 Methyl cellullose (MC) aqueous solution has a peculiar phenomenon: when the temperature rises to a certain extent, the clear solution begins to appear milky white, then the milky white aggravates, the viscosity suddenly increases, and finally the system loses its fluidity. If the system is cooled, the viscosity begins to drop, milky white gradually recede until it returns to a clear solution. This is the gel phenomenon of aqueous MC, which differs from the gel phenomenon of most polymer solutions in that the temperature