Color reaction with acetylacetone is used to determine the formaldehyde content in fabrics.
织物中甲醛的测定大多采用乙酰丙酮的显色反应。
Plasma treatment followed by the curing can further decrease the free formaldehyde content and increase the angle of crease recovery.
等离子体处理后再经焙烘，可进一步减少棉织物上游离甲醛含量，提高折皱回复角。
The water resistant low formaldehyde content urea-formaldehyde resin was prepared by adding hydrophobic resin and formaldehyde collecting agent.
采用加入疏水性树脂和甲醛捕捉剂的方法对脲醛树脂进行了改性。
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