CN103979920A - Water-resistant magnesium oxysulfate fire-proof plate and manufacturing method thereof - Google Patents
Water-resistant magnesium oxysulfate fire-proof plate and manufacturing method thereof Download PDFInfo
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- CN103979920A CN103979920A CN201410249266.XA CN201410249266A CN103979920A CN 103979920 A CN103979920 A CN 103979920A CN 201410249266 A CN201410249266 A CN 201410249266A CN 103979920 A CN103979920 A CN 103979920A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001868 water Inorganic materials 0.000 title claims abstract description 31
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 12
- 239000011777 magnesium Substances 0.000 title claims abstract description 12
- CENHPXAQKISCGD-UHFFFAOYSA-N trioxathietane 4,4-dioxide Chemical compound O=S1(=O)OOO1 CENHPXAQKISCGD-UHFFFAOYSA-N 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 35
- OLZDXDPSDUSGIS-UHFFFAOYSA-N sulfinylmagnesium Chemical compound [Mg].S=O OLZDXDPSDUSGIS-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004568 cement Substances 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000003513 alkali Substances 0.000 claims abstract description 10
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 9
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 15
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 13
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 11
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 239000003623 enhancer Substances 0.000 claims description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000003607 modifier Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000010451 perlite Substances 0.000 claims description 6
- 235000019362 perlite Nutrition 0.000 claims description 6
- 239000012779 reinforcing material Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 4
- 229930006000 Sucrose Natural products 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000004021 humic acid Substances 0.000 claims description 4
- 229910021487 silica fume Inorganic materials 0.000 claims description 4
- 239000005720 sucrose Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 20
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 4
- 150000002367 halogens Chemical class 0.000 abstract description 4
- 239000002585 base Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 8
- 238000001723 curing Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000001095 magnesium carbonate Substances 0.000 description 3
- 235000014380 magnesium carbonate Nutrition 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Laminated Bodies (AREA)
- Finishing Walls (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种耐水型硫氧镁防火板及其制作方法，属于防火板生产领域。该防火板采用改性硫氧镁水泥作为基材，采用中碱玻纤布和无纺布等作为骨架材料，将活性填料加入料浆混合，在一定条件下硬化脱模制得。与现有技术相比，本发明的防火门芯板无吸潮返卤，具有较普通玻镁板更高的耐久性，外观光滑美观，可以应用于建筑防火领域，尤其是潮湿环境下的防火工程，具有很好的推广应用价值。The invention discloses a water-resistant magnesium oxysulfide fireproof board and a manufacturing method thereof, belonging to the field of fireproof board production. The fireproof board is made by using modified magnesium oxysulfide cement as the base material, using medium-alkali glass fiber cloth and non-woven fabric as the skeleton material, adding active filler to the slurry and mixing it, and hardening and demoulding under certain conditions. Compared with the existing technology, the fire door core board of the present invention has no moisture absorption and halogen return, has higher durability than ordinary glass magnesium boards, and has a smooth and beautiful appearance, and can be applied to the field of building fire protection, especially in humid environments. Engineering, has very good popularization and application value.
Description
the
技术领域 technical field
本发明涉及防火板生产领域，具体地说是一种耐水型硫氧镁防火板及其制作方法。 The invention relates to the field of fireproof board production, in particular to a water-resistant magnesium oxysulfide fireproof board and a manufacturing method thereof.
背景技术 Background technique
玻镁防火板是目前应用最为广泛的防火板之一，是以菱镁胶凝材料为基料，以中碱玻纤布为增强材料，以轻质材料为填充物复合而成的新型不燃建筑板材。可用作保温建筑墙板、门芯板、吊顶板、包装箱等，可替代木质胶合板做墙裙、门窗框、家具等。也可根据需要表面涂调和漆、清水漆，并可加工成各种类型的板面。还可用于地下室、矿井等潮湿环境的简易防火工程。 Glass magnesium fireproof board is one of the most widely used fireproof boards at present. It is a new type of non-combustible building compounded with magnesite cementitious material as base material, medium alkali glass fiber cloth as reinforcement material and light material as filler. sheet. It can be used as thermal insulation building wall panels, door core panels, ceiling panels, packing boxes, etc., and can replace wooden plywood to make dado, door and window frames, furniture, etc. The surface can also be painted with blending paint and clear water paint according to needs, and can be processed into various types of board surfaces. It can also be used in simple fire prevention projects in damp environments such as basements and mines.
现有技术中，制作玻镁防火板所用菱镁胶凝材料主要为氯氧镁水泥，氯氧镁水泥是以氧化镁，氯化镁，和水三元体系，经合理配比和采用外加剂改性而制成的气硬性胶凝材料，有轻质高强的特点。但其防水性能很差的缺点也十分明显，遇到高湿天气时，这种材料表面会返卤返霜、翘曲变形，降低产品强度，从而严重影响它的装饰性能和使用范围，缩短了制品的使用寿命。近年来，虽然氯氧镁制品的改性技术日益进步，但其耐水性差的弊病仍旧无法根除，限制了制品的广泛应用。 In the prior art, the magnesia cementitious material used in the production of glass magnesium fireproof boards is mainly magnesium oxychloride cement, which is a ternary system of magnesium oxide, magnesium chloride, and water, which is modified by reasonable proportioning and admixtures. And the air-hardening gelled material made has the characteristics of light weight and high strength. However, the disadvantage of its poor waterproof performance is also very obvious. In high-humidity weather, the surface of this material will return to halogen and frost, warp and deform, and reduce the strength of the product, which will seriously affect its decorative performance and scope of use, shortening the life of the product. The useful life of the product. In recent years, although the modification technology of magnesium oxychloride products has been improving day by day, the disadvantage of poor water resistance still cannot be eradicated, which limits the wide application of products.
在菱镁胶凝材料中，硫氧镁材料的优点在于彻底摆脱了吸潮返卤的可能性。但是，传统硫氧镁水泥的强度、防水性能存在较大问题，无法满足建筑工程的应用要求。而经过合理改性的新型硫氧镁材料在强度和耐水性方面都有了很大提升。其轻质、低碱、抗水、耐高温、不锈蚀钢筋等优势，使其非常适于制作防火板材，耐火装饰材料等，将在今后的建筑工程行业占据更大份额。 Among the magnesite cementitious materials, the advantage of magnesium oxysulfide material is that it completely gets rid of the possibility of moisture absorption and return to halogen. However, there are big problems in the strength and waterproof performance of traditional magnesium oxysulfide cement, which cannot meet the application requirements of construction projects. However, the new magnesium oxysulfide material that has been reasonably modified has greatly improved its strength and water resistance. Its advantages such as light weight, low alkali, water resistance, high temperature resistance, and non-corroding steel bars make it very suitable for making fireproof panels, fireproof decorative materials, etc., and will occupy a larger share in the future construction industry.
发明内容 Contents of the invention
本发明的技术任务是针对上述现有技术的不足，提供一种耐水型硫氧镁防火板。 The technical task of the present invention is to provide a water-resistant magnesium oxysulfide fireproof board for the above-mentioned deficiencies in the prior art.
本发明进一步的技术任务是提供上述防火板的制作方法。 The further technical task of the present invention is to provide a method for making the above-mentioned fireproof board.
本发明的技术任务是按以下方式实现的：一种耐水型硫氧镁防火板，其特点是由以下方法制作： The technical task of the present invention is achieved in the following manner: a water-resistant magnesium oxysulfide fireproof board is characterized in that it is made by the following method:
a、改性硫氧镁水泥料浆的配制 a. Preparation of modified magnesium oxysulfide cement slurry
以轻烧氧化镁粉和硫酸镁溶液混合搅拌，加入改性剂得到净浆；在适当搅拌速率下将净浆与活性填料混合，搅拌均匀后得到改性硫氧镁水泥料浆，所述改性剂为硫氧镁专用抗水增强剂，由10%硅灰，20%有机硅防水剂粉末，38%蔗糖，32%腐植酸混合而成； Lightly burned magnesium oxide powder and magnesium sulfate solution are mixed and stirred, and a modifier is added to obtain a clean slurry; the clean slurry is mixed with an active filler at an appropriate stirring rate, and the modified magnesium oxysulfide cement slurry is obtained after stirring evenly. The neutralizing agent is a special water-resistance enhancer for magnesium oxysulfate, which is composed of 10% silica fume, 20% organic silicon waterproof agent powder, 38% sucrose, and 32% humic acid;
b、按次序将步骤a所得料浆和增强材料分别平铺在模板上，养护至料浆硬化，得到防火板。 b. Lay the slurry and reinforcing material obtained in step a on the formwork in sequence, and cure until the slurry is hardened to obtain a fireproof board.
为了增加防火板的装饰效果，可以在防火板外表面粘接装饰性贴面，如木皮、竹皮、PVC皮以及三聚氰胺皮等。粘接装饰性贴面所用的粘接胶可以是白乳胶、单组份聚氨酯胶以及环氧树脂胶中的一种。其中对于木皮、竹皮等水性贴面的粘接优选白乳胶，PVC皮和三聚氰胺贴面皮等油性贴面不适用白乳胶，优选单组份聚氨酯胶。装饰性贴面的粘接过程可采用双面喷胶方式。 In order to increase the decorative effect of the fireproof board, decorative veneers, such as wood veneer, bamboo veneer, PVC skin and melamine skin, can be glued on the outer surface of the fireproof board. The adhesive glue used for bonding the decorative veneer can be one of white latex, one-component polyurethane glue and epoxy resin glue. Among them, white latex is preferred for bonding water-based veneers such as wood veneer and bamboo veneer, while oily veneers such as PVC skin and melamine veneer are not suitable for white latex, and one-component polyurethane glue is preferred. The bonding process of the decorative veneer can be double-sided glue spraying.
所述硫酸镁溶液密度为1.22g/cm3，硫酸镁溶液与轻烧氧化镁粉的质量比为1:（1～1.2），优选为1:（1.05～1.15）。 The density of the magnesium sulfate solution is 1.22g/cm 3 , and the mass ratio of the magnesium sulfate solution to light-burned magnesium oxide powder is 1:(1-1.2), preferably 1:(1.05-1.15).
改性剂的掺加量优选为轻烧氧化镁粉质量的1%。 The dosage of modifier is preferably 1% of the mass of light-burned magnesia powder.
净浆与活性填料混合时的搅拌速率为60～80转/分钟。 The mixing speed of the pure pulp and the active filler is 60-80 rpm.
所述活性填料可以是现有技术中任意一种轻质填料，优选为滑石粉或粉煤灰中的一种与闭孔珍珠岩的混合物。 The active filler can be any light filler in the prior art, preferably a mixture of talcum powder or fly ash and closed-cell perlite.
所述增强材料优选为中碱玻纤布或无纺布。 The reinforcing material is preferably medium-alkali glass fiber cloth or non-woven cloth.
防火板的养护过程可采用本领域常规养护方法，优选的养护条件为：在温度25~35℃，相对湿度60%以上的室内环境中放置24小时脱模；之后在温度20~30℃，相对湿度30~90%的环境下进行二次养护，二次养护的时间为7~14天。 The curing process of the fireproof board can adopt conventional curing methods in this field. The preferred curing conditions are: place it in an indoor environment with a temperature of 25~35°C and a relative humidity of 60% or more for 24 hours to demould; The second curing is carried out in an environment with a humidity of 30-90%, and the time for the second curing is 7-14 days.
本发明在防火板制作领域首次引入改性硫氧镁水泥以及装饰性表面粘接工序，以改性硫氧镁水泥作为基材，采用中碱玻纤布和无纺布等作为增强材料，将活性填料加入料浆混合，在一定条件下硬化脱模制得耐水型硫氧镁防火板。与现有技术相比，具有以下突出的有益效果： The present invention introduces modified magnesium oxysulfide cement and decorative surface bonding process for the first time in the field of fireproof board production, uses modified magnesium oxysulfide cement as the base material, and uses medium-alkali glass fiber cloth and non-woven fabric as reinforcing materials. The active filler is added to the slurry and mixed, and hardened and demoulded under certain conditions to obtain a water-resistant magnesium oxysulfide fireproof board. Compared with the prior art, it has the following outstanding beneficial effects:
（一）采用改性硫氧镁水泥解决了玻镁防火板长久以来无法根除的耐水性差、易吸潮返卤的问题； (1) The use of modified magnesium oxysulfide cement solves the problems of poor water resistance and easy moisture absorption and brine return that cannot be eradicated for a long time in glass magnesium fireproof boards;
（二）明确了改性剂的成分及各组份的最佳配比，吸潮软化系数（7d）不低于0.97，泡水软化系数（7d）不低于0.90，软化系数较未添加改性剂的样品提升了125%，且无吸潮返卤现象； (2) The composition of the modifier and the optimal ratio of each component are clarified. The moisture absorption softening coefficient (7d) is not less than 0.97, and the water softening coefficient (7d) is not less than 0.90. The sample of the agent has been increased by 125%, and there is no phenomenon of moisture absorption and halogen return;
（三）特殊装饰性外皮的粘接极大地拓展了玻镁防火板在建筑装饰领域的应用范围，所获得的硫氧镁防火板具有接近木板等传统装饰板材的形貌与质感，而且有着更高的强度和安全性。 (3) The bonding of the special decorative skin greatly expands the application scope of the glass magnesium oxysulfide fireproof board in the field of architectural decoration. The obtained magnesium oxysulfide fireproof board has the shape and texture close to traditional decorative boards such as wood boards, and has more High strength and safety.
the
具体实施方式 Detailed ways
以具体实施例对本发明的耐水型硫氧镁防火板及其制作方法作以下详细地说明。 The water-resistant magnesium oxysulfide fireproof board of the present invention and its manufacturing method are described in detail below with specific examples.
【实施例一】 [Example 1]
将以下质量百分比的原料混合均匀，即得到本发明所述改性剂（硫氧镁抗水增强剂）： Mix the raw materials in the following mass percentages evenly to obtain the modifier (magnesium oxysulfate water resistance enhancer) of the present invention:
硅灰 10% Silica fume 10%
有机硅防水剂粉末 20% Silicone water repellent powder 20%
蔗糖 38% Sucrose 38%
腐植酸 32%。 Humic Acid 32%.
【实施例二】 [Example 2]
料浆配方： Slurry formula:
轻烧氧化镁粉100kg 硫酸镁溶液(密度为1.22g/cm3) 111kg Lightly burned magnesium oxide powder 100kg Magnesium sulfate solution (density 1.22g/cm 3 ) 111kg
硫氧镁抗水增强剂1kg 滑石粉（325目）30kg Magnesium oxysulfate anti-water enhancer 1kg talc powder (325 mesh) 30kg
闭孔珍珠岩（粒度30目）5kg Closed-cell perlite (30 mesh size) 5kg
增强材料：中碱玻纤布（靠近料浆）和无纺布（靠近表面） Reinforcement material: medium alkali glass fiber cloth (close to the slurry) and non-woven fabric (close to the surface)
装饰性贴面为木皮，粘接材料为白乳胶。 The decorative veneer is wood veneer, and the bonding material is white latex.
制作步骤： Production steps:
a、改性硫氧镁水泥料浆的配制 a. Preparation of modified magnesium oxysulfide cement slurry
将轻烧氧化镁粉加入硫酸镁溶液中，混合搅拌均匀并加入硫氧镁抗水增强剂得到净浆；在70转/分钟搅拌速率下将净浆与滑石粉、闭孔珍珠岩混合，搅拌均匀后得到改性硫氧镁水泥料浆； Add light-burned magnesium oxide powder into the magnesium sulfate solution, mix and stir evenly, and add magnesium oxysulfate water-resistant enhancer to obtain a clean slurry; mix the clean slurry with talcum powder and closed-cell perlite at a stirring speed of 70 rpm, and stir Obtain the modified magnesium oxysulfide cement slurry after uniformity;
b、按次序将步骤a所得料浆和中碱玻纤布、无纺布分别平铺在模板上，具体的平铺次序如下：先铺一层无纺布，再铺一层玻纤布，之后上料浆，然后按次序在压平的料浆上再加一层玻纤布和无纺布。 b. Spread the slurry obtained in step a, medium-alkali glass fiber cloth and non-woven fabric on the template in order, the specific order of laying is as follows: first lay a layer of non-woven fabric, then spread a layer of glass fiber cloth, Then apply the slurry, and then add a layer of glass fiber cloth and non-woven fabric on the flattened slurry in order.
c、在温度25℃以上，相对湿度60%以上的室内环境中放置24小时，养护至料浆硬化，脱模得到防火板基板； c. Place it in an indoor environment with a temperature above 25°C and a relative humidity above 60% for 24 hours, cure until the slurry hardens, and demould to obtain a fireproof board substrate;
d、在温度20~30℃，相对湿度30~90%的环境下对防火板基板进行二次养护，二次养护的时间为7~14天。 d. Carry out secondary curing of the fireproof board substrate in an environment with a temperature of 20~30°C and a relative humidity of 30~90%. The time for the secondary curing is 7~14 days.
e 、采用双面喷胶方式，在防火板基板外表面粘接装饰性贴面。 e. Adhesive decorative veneers are attached to the outer surface of the fireproof board substrate by double-sided glue spraying.
【实施例三】 [Embodiment 3]
料浆配方： Slurry formula:
轻烧粉100kg 硫酸镁溶液（密度为1.22g/cm3) 114kg Lightly burned powder 100kg Magnesium sulfate solution (density 1.22g/cm 3 ) 114kg
硫氧镁抗水增强剂1kg 粉煤灰（200目）30kg Magnesium oxysulfide anti-water enhancer 1kg Fly ash (200 mesh) 30kg
闭孔珍珠岩（粒度30目）5kg Closed-cell perlite (30 mesh size) 5kg
增强材料：中碱玻纤布（靠近料浆）和无纺布（靠近表面）。 Reinforcement material: medium alkali fiberglass cloth (close to the slurry) and non-woven fabric (close to the surface).
装饰性贴面为PVC贴面，粘接材料为单组份聚氨酯胶。 The decorative veneer is PVC veneer, and the bonding material is one-component polyurethane glue.
除所用活动填料不同外，制作步骤与实施例二相同。 Except that the active packing used is different, the manufacturing steps are the same as in Example 2.
【对比实例】 【Comparative example】
料浆配方： Slurry formula:
轻烧粉100kg 硫酸镁溶液(密度为1.22g/cm3) 114kg Lightly burned powder 100kg Magnesium sulfate solution (density 1.22g/cm 3 ) 114kg
粉煤灰（200目）30kg 闭孔珍珠岩（粒度30目）5kg Fly ash (200 mesh) 30kg Closed-cell perlite (particle size 30 mesh) 5kg
增强材料：中碱玻纤布（靠近料浆）和无纺布（靠近表面）。 Reinforcement material: medium alkali fiberglass cloth (close to the slurry) and non-woven fabric (close to the surface).
装饰性贴面为PVC贴面，粘接材料为单组份聚氨酯胶。 The decorative veneer is PVC veneer, and the bonding material is one-component polyurethane glue.
除未添加硫氧镁抗水增强剂，制作步骤与实施例二相同。 Except that no magnesium oxysulfate water-resistant enhancer was added, the manufacturing steps were the same as in Example 2.
【实验例】 【Experimental example】
对实施例二、实施例三、对比实例制得的防火板分别进行性能测试，测试指标见下表： Carry out performance test respectively to embodiment two, embodiment three, the fireproof board that comparative example makes, and test index sees the following table:
从表中可以看出，实施例二、三制造的防火板的指标均可以达到甚至优于菱镁装饰板标准。未添加硫氧镁抗水增强剂的对比实例在强度、软化系数以及吸水率方面都未能达标，可见合理改性对于硫氧镁板材的性能提升是十分必要的。 It can be seen from the table that the indexes of the fireproof boards manufactured in the second and third embodiments can all reach or even exceed the standard of magnesite decorative boards. The comparison example without adding magnesium oxysulfide water-resistance enhancer failed to reach the standard in terms of strength, softening coefficient and water absorption. It can be seen that reasonable modification is very necessary for the performance improvement of magnesium oxysulfide boards.
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