A METHOD FOR ADJUSTING THE TACK VALUE OF A BINDER MATERIAL
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The present invention is directed to a method for adjusting the tack value of a binder material formed from a composition comprising an emulsion that comprises an emulsifiable prepolymer that is the reaction product of (i) an isocyanate compound， (ii) a polyol compound， and (iii) a monol compound， and wherein the method comprises: (a) determining a desired tack profile for the emulsion， wherein the tack profile comprises a tack value ranging from 1 to 4 as measured by the TACK TEST METHOD for a particular time value， and adjusting the reactive group ratio of component (i) to (ii) to achieve the desired tack value profile; (b) introducing water to components (i)， (ii)， and (iii) to form the emulsion composition; and (c) applying the emulsion composition to a lignocellulosic substrate thereby forming a mixture having a moisture water content ranging from 7% to 25% based on the total weight of the mixture.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
