（1）满足复杂化学条件环境下的防腐蚀要求：烟囱内化学环境复杂，烟气含酸量很高，在内衬表面形成的凝结物，对于大多数的建筑材料都具有很强的侵蚀性，所以对内衬材料要求具有抗强酸腐蚀能力； (1) meet the conditions of complex chemical environment of anti-corrosion requirements: chemical environment is complex, in the chimney flue gas acid content is very high, in the lining surface condensation, for most building materials have very strong corrosive, so the lining material requirements have strong acid corrosion resistance; （2）耐温要求：烟气温差变化大，湿法脱硫后的烟气温度在40℃~80℃之间，在脱硫系统检修或不运行而机组运行工况下，烟囱内烟气温度在130℃~150℃之间，那么要求内衬具有抗温差变化能力，在温度变化频繁的环境中不开裂并且耐久； (2) heat resistance requirements: flue gas temperature difference is big, after wet desulfurization of flue gas temperature, between 40 ℃ ~ 80 ℃ in the desulfurization system maintenance or not run and unit operation condition, inside the chimney flue gas temperature is between 130 ℃ ~ 150 ℃, then asked lining has the ability to resist temperature changing, frequent change in temperature environment is not cracking and durable; （3）耐磨性能好：烟气中含有大量的粉尘，同时在腐蚀性的介质作用下，磨损的实际情况可能会较为明显，所以要求防腐材料具有良好的耐磨性； (3) the wear-resisting performance is good: smoke contains a large amount of dust, while under the effect of corrosive medium, the actual situation of wear may be more obvious, so request anticorrosive material with good abrasion resistance; （4）具有一定的抗弯性能：由于考虑到一些烟囱的高空特性，包括是地球本身的运动、地震和风力作用等情况，烟囱尤其是高空部位可能会发生摇动等角度偏向或偏离，同时烟囱在安装和运输过程中可能会发生一些不可控的力学作用等，所以要求防腐材料具有一定的抗弯性能； (4) has certain flexural performance: due to high altitude characteristics of considering some of the chimneys, including is the movement of the earth itself, earthquake and wind loads, and so on and so forth, especially high chimney site may occur rocking Angle deflection or deviation, and chimney might occur in the process of installation and transportation some uncontrollable mechanical function, etc., so request anticorrosive material has certain flexural performance; （5）具有良好的粘结力：防腐材料必须具有较强的粘结强度，不仅指材料自身的粘结强度较高，而且材料与基材之间的粘结强度要高，同时要求材料不易产生龟裂、分层或剥离，附着力和冲击强度较好，从而保证较好的耐蚀性。通常我们要求底涂材料与钢结构基础的粘接力能够至少达到10MPa以上。 (5) has a good bond: anti-corrosion material must have a strong bond strength, not only refers to the bond strength of material itself is higher, and the bonding strength between material and base material, also asked that the material is not easy to produce cracks, delamination or stripping, better adhesion and impact strength, to ensure good corrosion resistance. Usually we require that the base of the coating material and the steel structure of the adhesion relay can reach at least 10MPa.