During the PVA process,gel effect will occur and restrict the production PVA of high polymerization degree when the viscosity of material in polymerization autoclave reach a certain value.

　
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  • 聚乙烯醇生產(chǎn)過(guò)程中,當反應體系黏度達到一定值時(shí),會(huì )產(chǎn)生"凝膠效應",從而制約高聚合度產(chǎn)品的生產(chǎn)。
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