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Preparation method of high-density flame-retardant gypsum-based fiberboard
The invention relates to the technical field of building materials, in particular to a preparation method of a high-density flame-retardant gypsum-based fiberboard. The preparation method specifically comprises the following steps: 1, carrying out amination treatment on alkaline lignin, and grafting DOPO; 2, after wood fibers are subjected to carboxylation treatment, 4-(6-amino-3-pyridyl) piperazine-1-tert-butyl formate is grafted; 3, preparing modified wood fiber liquid from polysiloxane and the like and the modified wood fibers; and 4, gypsum fiber slurry is prepared, a plate blank is prepared, pressurization, pressure maintaining, maintaining and drying are conducted, and the high-density flame-retardant gypsum-based fiberboard is obtained. The high-density flame-retardant gypsum-based fiberboard is prepared from the following components in parts by weight: 45 to 65 parts of gypsum powder, 110 to 130 parts of deionized water, 0.05 to 0.07 part of retarder, 8 to 15 parts of modified lignin and 20 to 30 parts of modified wood fiber liquid.
本发明涉及建筑材料技术领域，具体为一种高密实阻燃型石膏基纤维板的制备方法。具体包括以下步骤：步骤一：碱性木质素胺化处理后接枝DOPO；步骤二：木纤维羧基化处理后接枝4‑(6‑氨基‑3‑吡啶基)哌嗪‑1‑甲酸叔丁酯；步骤三：用聚硅氧烷等和改性后的木纤维，配制出改性木纤维液；步骤四：配制出石膏纤维浆料，制成板坯，将加压、保压、保养、干燥，得到高密实阻燃型石膏基纤维板。高密实阻燃型石膏基纤维板包括以下组分：按重量份数计为：石膏粉45～65份、去离子水110～130份、缓凝剂0.05～0.07份、改性木质素8～15份、改性木纤维液20～30份。
Preparation method of high-density flame-retardant gypsum-based fiberboard
The invention relates to the technical field of building materials, in particular to a preparation method of a high-density flame-retardant gypsum-based fiberboard. The preparation method specifically comprises the following steps: 1, carrying out amination treatment on alkaline lignin, and grafting DOPO; 2, after wood fibers are subjected to carboxylation treatment, 4-(6-amino-3-pyridyl) piperazine-1-tert-butyl formate is grafted; 3, preparing modified wood fiber liquid from polysiloxane and the like and the modified wood fibers; and 4, gypsum fiber slurry is prepared, a plate blank is prepared, pressurization, pressure maintaining, maintaining and drying are conducted, and the high-density flame-retardant gypsum-based fiberboard is obtained. The high-density flame-retardant gypsum-based fiberboard is prepared from the following components in parts by weight: 45 to 65 parts of gypsum powder, 110 to 130 parts of deionized water, 0.05 to 0.07 part of retarder, 8 to 15 parts of modified lignin and 20 to 30 parts of modified wood fiber liquid.
本发明涉及建筑材料技术领域，具体为一种高密实阻燃型石膏基纤维板的制备方法。具体包括以下步骤：步骤一：碱性木质素胺化处理后接枝DOPO；步骤二：木纤维羧基化处理后接枝4‑(6‑氨基‑3‑吡啶基)哌嗪‑1‑甲酸叔丁酯；步骤三：用聚硅氧烷等和改性后的木纤维，配制出改性木纤维液；步骤四：配制出石膏纤维浆料，制成板坯，将加压、保压、保养、干燥，得到高密实阻燃型石膏基纤维板。高密实阻燃型石膏基纤维板包括以下组分：按重量份数计为：石膏粉45～65份、去离子水110～130份、缓凝剂0.05～0.07份、改性木质素8～15份、改性木纤维液20～30份。
Preparation method of high-density flame-retardant gypsum-based fiberboard
一种高密实阻燃型石膏基纤维板的制备方法
YUE RENJIE (author) / LIU JUN (author) / JIA PENG (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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