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第 12 期 徐 惠，等: 响应面法优化废旧 PET 催化醇解工艺 ·2005·

图 6 催化剂用量、醇解剂用量以及时间对黏度的影响
Fig. 6 Response surface plots of viscosity as a function of amount of catalyst and alcoholysis agents and reaction time

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