公开(公告)号：WO2017109459A1

公开(公告)日：2017-06-29

申请号：PCT/GB2016/053930

申请日：2016-12-14

Applicant: SAINT-GOBAIN PLACO SAS

Inventor： MORLAT, Richard ,  FLETCHER, James ,  KAMLER, Radomir

IPC: C04B28/14 ,  C04B11/00

CPC classification number: C04B11/007 ,  C04B28/144 ,  C04B28/145 ,  C04B2111/0062 ,  C04B14/42 ,  C04B24/383 ,  C04B2103/32 ,  C04B24/003 ,  C04B24/04 ,  C04B24/226

Abstract: A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: • forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; • casting the mixture in a continuous band; • maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; • cutting the band to form one or more wet panel precursors; and • drying the wet panel precursor to form one or more gypsum-based panels. • The weight ratio of water to stucco in the mixture is less than 0.7; • the stucco is present in the mixture in an amount of over 60 wt% relative to the total solids content of the mixture; • the starch is present in the mixture in an amount of over 3 wt% relative to the the stucco; • the glass fibre is present in the mixture in an amount of over 1 wt% relative to the stucco; • the fluidizer is is present in the mixture in an amount of at least 0,1 wt% relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.

Abstract translation: 一种用于连续形成高固定强度的石膏基板的方法包括以下步骤：·形成包含灰泥，非预胶化迁移淀粉，玻璃纤维，流化剂和水的混合物; •将混合物浇注在连续的带上; •将条带保持在足以使灰泥形成凝固石膏互锁基体的条件下; •切割带以形成一个或多个湿面板前体; 和·干燥湿面板前体以形成一个或多个石膏基面板。 •混合物中水与灰泥的重量比小于0.7; ·混合物中灰泥的含量相对于混合物的总固体含量超过60重量％; •相对于灰泥，淀粉以超过3重量％的量存在于混合物中; •玻璃纤维相对于灰泥的含量超过1重量％; ·流化剂相对于灰泥以至少0.1wt％的量存在于混合物中; 并且石膏基面板的密度大于700kg / m。