CN102167529B - Thermal insulation fire-proof aggregate with polystyrene particle-coated expanded and vitrified bead mortar and preparation method thereof - Google Patents

Thermal insulation fire-proof aggregate with polystyrene particle-coated expanded and vitrified bead mortar and preparation method thereof Download PDF

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CN102167529B
CN102167529B CN 201010612357 CN201010612357A CN102167529B CN 102167529 B CN102167529 B CN 102167529B CN 201010612357 CN201010612357 CN 201010612357 CN 201010612357 A CN201010612357 A CN 201010612357A CN 102167529 B CN102167529 B CN 102167529B
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vitrified
insulation
method
fire
preparation
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CN102167529A (en )
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严建华
秦魏
刘伟华
张红芳
罗淑湘
刘妍
王倩倩
张海滨
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北京工业大学
山东创智新材料科技有限公司
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/12Multiple coating or impregnating
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/90Reuse, recycling or recovery technologies cross-cutting to different types of waste
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • Y02W30/96Use of waste materials as fillers for mortars or concrete organic, e.g. rubber, polystyrene
    • Y02W30/97Vegetable refuse, e.g. rice husks, maize-ear refuse; cellulosic materials, e.g. paper

Abstract

本发明公开了一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料及其制备方法,属于墙体保温材料领域。 The present invention discloses a method for preparing fire insulation aggregates, and an intumescent glass beads of mortar wrapped polystyrene particles, is in the field of wall insulation material. 该骨料是由芯层和包裹层组成,芯层为表面改性的聚苯颗粒,包裹层为膨胀玻化微珠保温砂浆,保温砂浆中加入了氢氧化钙,因其受热分解会吸热和释放水分以起到阻燃效果。 The aggregate is composed of a core and a wrapping layer, the core layer is surface-modified polystyrene particles, an expanded layer wrapping glass beads insulation mortar, thermal insulation mortar was added calcium hydroxide, because of heat decomposition is endothermic and the release of water to act as a flame retardant effect. 其制备过程为:筛选聚苯颗粒,将其表面进行无机化改性,改性后的粒径为0.4-0.7cm;按所用配比制备膨胀玻化微珠保温砂浆浆料;用膨胀玻化微珠保温砂浆浆料包裹表面改性了的聚苯颗粒,然后在自然条件下干燥,从而制成粒径为0.7-1.5cm的骨料颗粒。 The preparation process is as follows: screening particles of polystyrene, which is an inorganic surface modification, the modified particle diameter of 0.4-0.7cm; was prepared according to the expansion ratio of glass beads of insulation mortar slurry; expansion vitrified beads wrapped insulation mortar slurry of the surface-modified polystyrene particles, and then dried under natural conditions to prepare a particle diameter of aggregate particles of 0.7-1.5cm. 该骨料兼而具有保温和防火性能高的特点,在防火保温使用中具有易于操作的特点。 The aggregate and having high thermal insulation and fire performance characteristics, has the characteristics of easy use in fire insulation.

Description

一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料及其制备方法 Fire insulation aggregates and a process for preparing expanded glass beads of polystyrene particles mortar parcel

技术领域 FIELD

[0001] 本发明属于墙体保温材料领域,涉及ー种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料及其制备方法。 [0001] The present invention belongs to the field of wall insulation, fire insulation relates to method of preparing beads of mortar and aggregate wrapped polystyrene particles of expanded vitrified ー species.

背景技术 Background technique

[0002] 膨胀玻化微珠是近年来发展起来的ー种具有较好保温性能的无机轻质颗粒类材料単体,其内部多孔空腔,表面玻化封闭,光泽平滑,理化性能稳定,具有质轻、绝热、防火、耐高低温,抗老化、吸水率小等优异特性,是ー种环保型高性能保温隔热材料。 [0002] expanded glass beads is developed in recent years ー inorganic lightweight particles radiolabeling based material having good thermal insulation properties, its porous internal cavity, closed glassy surface, glossy smooth, stable physical and chemical properties, with a mass light, thermal insulation, fire, high temperature resistance, aging resistance, excellent water absorption properties and small, high-performance is environmentally kind ー insulation materials.

[0003] 聚苯颗粒属有机类材料,球形度好,吸水率低,导热系数小[一般小于O. 041W/ (m· K)],保温性能优良,堆积密度约为玻化微珠的1/10,但颗粒级配差,空隙率大,与水泥胶凝强度低,耐高温及抗老化性差。 [0003] The organic metal particles of polystyrene-based material, a good sphericity, low water absorption, low thermal conductivity [typically less than O. 041W / (m · K)], excellent insulation properties, bulk density of about 1 glass beads / 10, but the difference in particle size distribution, void ratio, and low gel strength cement, high temperature and aging resistance difference. 聚苯颗粒耐热性能、粘结性能差,強度低,易空壳开裂的缺点。 Polystyrene particles heat resistance, adhesion performance is poor, low strength, easy to shell cracking disadvantages.

发明内容 SUMMARY

[0004] 本发明的目的是克服聚苯颗粒防火等级差的缺陷,利用膨胀玻化微珠防火等级优越、保温性能好的特点,提供ー种保温、防火功效更好的膨胀玻化微珠包裹聚苯颗粒的保温防火骨料。 [0004] The object of the present invention is to overcome the difference between the polystyrene particles defect fire rating, glass beads using the expanded fire rating excellent, good insulating performance characteristics provided ー species insulation, fireproofing and better efficacy expanded glass beads parcel fire insulation polystyrene aggregate particles.

[0005] 本发明的一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料的技术方案:该骨料是由芯层和包裹层组成,芯层为表面改性的聚苯颗粒,包裹层为膨胀玻化微珠保温砂浆。 [0005] An expansion of glass beads of the present invention, mortar fire insulation wrapped polystyrene particles aggregate technical solution: The aggregate is wrapped by a core layer and layer, a core layer of a surface-modified polystyrene particles, wrapping layer is a thermal insulation expanded glass beads.

[0006] 表面改性的聚苯颗粒为可再分散聚合物乳胶和胶凝材料包裹的聚苯颗粒,胶凝材料为质量比为6-8的水泥与粉煤灰。 [0006] surface-modified polystyrene particles redispersible latex polymer and the gelling material wrapped polystyrene particles, a gelling material is a mass ratio of 6-8 and fly ash cement. 其中改性料中可再分散聚合物乳胶与EPS颗粒的质量比为O. 7-0. 9,外层包裹的胶凝材料与EPS颗粒的质量比为O. 1-0. 2。 Wherein the modified compound redispersible latex polymer mass ratio and the EPS particles O. 7-0. 9, the outer layer of wrapped mass of cementitious material ratio of EPS beads O. 1-0. 2.

[0007] 膨胀玻化微珠保温砂浆浆料配比为:42. 5级水泥24. 8-33,玻化微珠9_12. 4,石英砂23-24. 8,木质纤维O. 1-1,羟丙甲基纤维素O. 1-1,可再分散胶粉I. 5-2. 5,聚丙烯短纤维O. 1-0. 5,β半水石膏O. 4-1,发泡剂O. 3-1,上述干料质量份数总和为67. 5_69,再加入干混料质量1% _5%的氢氧化钙。 [0007] The thermal expansion of glass beads of mortar The furnish is: 42 5 24. 8-33 cement, glass beads 4 9_12, quartz sand 23-248 lignocellulosic O. 1-1.. , hydroxypropylmethylcellulose O. 1-1, redispersible powders I. 5-2. 5, polypropylene staple fibers O. 1-0. 5, β hemihydrate gypsum O. 4-1, foamed agents O. 3-1, the sum of the parts by mass of the dry material is above 67. 5_69, the dry blend was added 1% by mass _5% of calcium hydroxide. 保温砂浆中加入了氢氧化钙,因其受热分解会吸热和释放水分以起到阻燃效果。 Insulation mortar calcium hydroxide was added, and its thermal decomposition endotherm will release moisture to act as a flame retardant effect.

[0008] 本发明ー种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料的制备方法,包括以下步骤: [0008] The production method of the present invention ー species expanded and vitrified beads aggregate mortar fire insulation wrapped polystyrene particles, comprising the steps of:

[0009] (I)聚苯颗粒表面改性:选聚苯颗粒,将计量的可再分散聚合物乳胶按水胶比 [0009] (I) surface-modified polystyrene particles: polystyrene particles selected from the metered ratio redispersible polymer latex by aqueous gel

O. 6-0. 9配好后,喷洒在不断翻动的EPS颗粒表面,待EPS颗粒表面润湿包裹完全后,再以其为核,边搅拌边加入水泥及粉煤灰,包裹ー层无机胶凝材料,制得EPS颗粒表面无机化。 After O. 6-0. 9 with a good spray particle surface constantly flip EPS, the EPS particles wetted surface to be wrapped completed, then its nuclear, was added with stirring, and fly ash cement, an inorganic layer wrapping ーgelling materials, prepared surface of the particles of the inorganic EPS. 改性后的粒径为O. 4-0. 7cm。 The modified particle diameter is O. 4-0. 7cm.

[0010] (2)配制膨胀玻化微珠保温砂浆浆料(wt % ) :42. 5级水泥24. 8-33,玻化微珠9-12. 4,石英砂23-24. 8,木质纤维O. 1_1,羟丙甲基纤维素O. 1_1,可再分散胶粉I. 5-2. 5,聚丙烯短纤维O. 1-0.5,β半水石膏O. 4-1,发泡剂O. 3-1,上述干料质量份数总和为67. 5-69,再加入干混料质量1% -5%的氢氧化·丐。 [0010] (2) Preparation of expanded glass beads of insulation mortar slurry (wt%):... 42 5 24. stage cement 8-33, 9-124 glass beads, quartz sand 23-248, lignocellulosic O. 1_1, hydroxypropylmethylcellulose O. 1_1, redispersible powders I. 5-2. 5, polypropylene staple fibers O. 1-0.5, β hemihydrate gypsum O. 4-1, hair suds O. 3-1, the sum of the parts by mass of the dry material is above 67. 5-69, the dry blend was added 1% to 5% by mass of the hack-hydroxide.

[0011] (3)将改性好的聚苯颗粒与膨胀玻化微珠保温砂浆混合制成湿颗粒,然后再自然条件下干燥即可。 [0011] (3) the modified polystyrene particles with good expansion glass beads of insulation mortar mixed wet granulation, and then dried under natural condition and then can. 所得颗粒尺寸为O. 7-1. 5cm The resulting particle size was O. 7-1. 5cm

[0012] 本发明的优点 [0012] The advantages of the present invention

[0013] 本发明的优点在于利用膨胀玻化微珠防火等级高的特性,包裹在聚苯颗粒外,形成ー种保温、防火更好的复合轻质骨料。 [0013] The advantage of the present invention is characterized by the expansion of glass beads of high fire rating characteristics, wrapped in an outer polystyrene particles, formed ー species insulation, fireproofing better composite lightweight aggregate. 该骨料防火等级高,可到A级防火;导热系数低,保温性能优越;通过表面无机化改性处理,使其在使用过程中不开裂,更加具亲和力,在防火保温使用中具有易于操作的特点。 The aggregate high fire rating, to be A fire; low thermal conductivity, excellent thermal insulation properties; mineralization by surface modification treatment, it does not crack during use, with greater affinity, with easy to handle fire insulation use specialty.

具体实施方式[0014]实例 I DETAILED DESCRIPTION [0014] Example I

[0015] 首先配制改性料,改性料中可再分散聚合物乳胶与EPS颗粒的质量比为O. 7,外层包裹的胶凝材料(水泥与粉煤灰的质量比为6)与EPS颗粒的质量比为O. I。 [0015] First modified material formulation, modifying compound redispersible latex polymer mass ratio of EPS beads O. 7, the outer wrapping of cementitious material (cement and fly ash mass ratio of 6) and EPS mass ratio of particles O. I. 其次,将计量的可再分散聚合物乳胶按水胶比O. 6配好后,喷洒在不断翻动的EPS颗粒表面,待EPS颗粒表面润湿包裹完全后,再以其为核,边搅拌边加入一定量的水泥及粉煤灰,包裹ー层无机胶凝材料,制得EPS颗粒表面无机化,粒径为O. 4-0. 7cm。 Next, the metered redispersible polymer latex press the water-cement ratio with a good O. 6, spraying the surface of the continuous turning of EPS beads, the surface of the particles to be wetted EPS wrapped completed, and then its nuclear stirring adding a certain amount of cement and fly ash, inorganic cementitious material layer wrapping ー prepared EPS inorganic particle surface, the particle size is O. 4-0. 7cm. 第三,按此配比(wt% ) :42. 5级水泥24. 8,玻化微珠12. 4,石英砂24. 8,木质纤维I,羟丙甲基纤维素I,可再分散胶粉2. 5,聚丙烯短纤维O. 5,β半水石膏1,发泡剂1,水31,再加入以上干混料质量1%的氢氧化钙,配制膨胀玻化微珠保温砂浆浆料。 Third, Click ratio (wt%):. 42 Level 5 24.8 cement, glass beads 12.4, 24.8 quartz sand, wood fiber I, hydroxypropylmethyl cellulose I, redispersible 2.5 powder, polypropylene staple fibers O. 5, β 1 hemihydrate gypsum, a foaming agent, water 31, the above dry blend was added 1% by mass calcium hydroxide, glass beads formulated expandable insulation mortar slurry. 最后,将改性好的聚苯颗粒与膨胀玻化微珠保温砂浆混合制成湿颗粒,再自然条件下干燥即可。 Finally, the modified particles of polystyrene and expanded a good glass beads insulation mortar mixed wet granulation, and then dried under natural conditions can. 所得颗粒尺寸为O. 7-1. 5cm The resulting particle size was O. 7-1. 5cm

[0016]实例 2 [0016] Example 2

[0017] 首先配制改性料,改性料中可再分散聚合物乳胶与EPS颗粒的质量比为O. 9,外层包裹的胶凝材料(水泥与粉煤灰的质量比为8)与EPS颗粒的质量比为O. 2。 [0017] First modified material formulation, modifying compound redispersible latex polymer mass ratio of EPS beads O. 9, the outer wrapping of cementitious material (cement and fly ash mass ratio of 8) EPS beads mass ratio of O. 2. 其次,将计量的可再分散聚合物乳胶按水胶比O. 77配好后,喷洒在不断翻动的EPS颗粒表面,待EPS颗粒表面润湿包裹完全后,再以其为核,边搅拌边加入一定量的水泥及粉煤灰,包裹ー层无机胶凝材料,制得EPS颗粒表面无机化,粒径为O. 4-0. 7cm。 Next, after the metered redispersible polymer latex based on the water-cement ratio with a good O. 77, spraying the surface of the continuous turning of EPS beads, the surface of the particles to be wetted EPS wrapped completed, and then its nuclear stirring adding a certain amount of cement and fly ash, inorganic cementitious material layer wrapping ー prepared EPS inorganic particle surface, the particle size is O. 4-0. 7cm. 第三,按此配比(wt% ) :42. 5级水泥33,玻化微珠9,石英砂23,木质纤维O. 1,羟丙甲基纤维素O. 1,可再分散胶粉I. 5,聚丙烯短纤维0.1,β半水石膏O. 4,发泡剂O. 3,水32. 5,再加入以上干混料质量5%的氢氧化钙,配制膨胀玻化微珠保温砂浆。 Third, Click ratio (wt%):. 42 5 33 stage cement, glass beads 9, 23 quartz sand, wood fiber O. 1, hydroxypropyl methylcellulose O. 1, redispersible powder I. 5. the polypropylene staple fibers 0.1, β hemihydrate gypsum O. 4, a foaming agent O. 3, 32.5 water, the above dry blend was added 5% by mass of calcium hydroxide, glass beads formulated expansion insulation mortar. 最后,将改性好的聚苯颗粒与膨胀玻化微珠保温砂浆混合制成湿颗粒,再自然条件下干燥即可。 Finally, the modified particles of polystyrene and expanded a good glass beads insulation mortar mixed wet granulation, and then dried under natural conditions can. 所得颗粒尺寸为O. 7-1. 5cm The resulting particle size was O. 7-1. 5cm

[0018]实例 3 [0018] Example 3

[0019] 首先配制改性料,改性料中可再分散聚合物乳胶与EPS颗粒的质量比为O. 8,外层包裹的胶凝材料(水泥与粉煤灰的质量比为7)与EPS颗粒的质量比为O. 15。 [0019] First modified material formulation, modifying compound redispersible latex polymer mass ratio of EPS beads O. 8, the outer wrapping of cementitious material (cement and fly ash mass ratio of 7) EPS beads mass ratio O. 15. 其次,将计量的可再分散聚合物乳胶按水胶比O. 9配好后,喷洒在不断翻动的EPS颗粒表面,待EPS颗粒表面润湿包裹完全后,再以其为核,边搅拌边加入一定量的水泥及粉煤灰,包裹ー层无机胶凝材料,制得EPS颗粒表面无机化,粒径为O. 4-0. 7cm。 Next, the metered redispersible polymer latex press the water-cement ratio with a good O. 9, spraying the surface of the continuous turning of EPS beads, the surface of the particles to be wetted EPS wrapped completed, and then its nuclear stirring adding a certain amount of cement and fly ash, inorganic cementitious material layer wrapping ー prepared EPS inorganic particle surface, the particle size is O. 4-0. 7cm. 第三,按此配比(wt% ) :42. 5级水泥30,玻化微珠10,石英砂24,木质纤维O. 5,羟丙甲基纤维素O. 5,可再分散胶粉2,聚丙烯短纤维O. 5,β半水石膏O. 6,发泡剂O. 4,水31. 5,再加入以上干混料质量4%的氢氧化钙,配制膨胀玻化微珠保温砂浆浆料。 Third, Click ratio (wt%):. 42 5 30 stage cement, glass beads 10, 24 of quartz sand, wood fiber O. 5, hydroxypropyl methylcellulose O. 5, redispersible powder 2, polypropylene staple fibers O. 5, β hemihydrate gypsum O. 6, foaming O. 4, 31.5 of water, then add more than 4% by mass of a dry blend of calcium hydroxide, glass beads formulated expansion insulation mortar slurry. 最后,将改性好的聚苯颗粒与膨胀玻化微珠保温砂浆混合制成湿颗粒,再自然条件下干燥即可。 Finally, the modified particles of polystyrene and expanded a good glass beads insulation mortar mixed wet granulation, and then dried under natural conditions can. 所得颗粒尺寸为O. 7-1. 5cm。 The resulting particle size was O. 7-1. 5cm.

Claims (3)

  1. 1. 一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料,其特征在于,该骨料是由芯层和包裹层组成,芯层为表面改性的聚苯颗粒,包裹层为膨胀玻化微珠保温砂浆; 表面改性的聚苯颗粒为可再分散聚合物乳胶和胶凝材料包裹的聚苯颗粒,胶凝材料为质量比为6-8的水泥与粉煤灰; 膨胀玻化微珠保温砂浆浆料配比为:42. 5级水泥24. 8-33,玻化微珠9-12. 4,石英砂23-24. 8,木质纤维O. 1-1,羟丙甲基纤维素O. 1_1,可再分散胶粉I. 5-2. 5,聚丙烯短纤维O. 1-0. 5,β半水石膏O. 4-1,发泡剂O. 3-1,上述干混料质量份数总和为67. 5_69,再加入干混料质量1%_5%的氢氧化钙;改性后的聚苯颗粒粒径为O. 4-0. 7cm,膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料颗粒尺寸为O. 7-1. 5cm。 1. An expansion glass beads of mortar fire insulation wrapped polystyrene particles aggregate, wherein the aggregate is composed of a core and a wrapping layer, the core layer is surface-modified polystyrene particles, wrapping layer expanded glass beads insulation mortar; surface-modified polystyrene particles redispersible latex polymer and the gelling material wrapped polystyrene particles, a gelling material is a mass ratio of 6-8 and fly ash cement; expansion glass beads of insulation mortar The furnish is: 42 5 24. 8-33 cement, glass beads 9-124, 23-248 quartz sand, wood fiber O. 1-1, a hydroxyl. methylcellulose O. 1_1, redispersible powders I. 5-2. 5, polypropylene staple fibers O. 1-0. 5, β hemihydrate gypsum O. 4-1, the blowing agent O. 3 -1, the sum of the above-described dry blend of 67 parts by mass 5_69, the dry blend was added 1% by mass of calcium hydroxide _5%; particle size of the modified polystyrene is O. 4-0 7cm, expansion. glass beads of mortar fire insulation wrapped polystyrene particle size of aggregate particles O. 7-1. 5cm.
  2. 2.如权利要求I的一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料,其特征在干,改性料中可再分散聚合物乳胶与聚苯颗粒的质量比为O. 7-0. 9,外层包裹的胶凝材料与聚苯颗粒的质量比为O. 1-0. 2。 2. An expansion I as claimed in claim vitrified beads aggregate mortar fire insulation wrapped polystyrene particles, characterized in that the dry, mass-modified redispersible polymer compound and polystyrene latex particles is the ratio of O. 7-0. 9, the outer layer of wrapped mass of cementitious material ratio of polystyrene particles O. 1-0. 2.
  3. 3.如权利要求I的一种膨胀玻化微珠砂浆包裹聚苯颗粒的保温防火骨料的制备方法,其特征在于,包括以下步骤: (1)聚苯颗粒表面改性:选聚苯颗粒,将计量的可再分散聚合物乳胶按水胶比O. 6-0. 9配好后,喷洒在不断翻动的聚苯颗粒表面,待聚苯颗粒表面润湿包裹完全后,再以其为核,边搅拌边加入水泥及粉煤灰,包裹ー层无机胶凝材料,制得聚苯颗粒表面无机化; (2)配制膨胀玻化微珠保温砂浆浆料wt% :42. 5级水泥24. 8-33,玻化微珠9-12. 4,石英砂23-24. 8,木质纤维O. 1-1,羟丙甲基纤维素O. 1_1,可再分散胶粉I. 5-2. 5,聚丙烯短纤维O. 1-0. 5,β半水石膏O. 4-1,发泡剂O. 3-1,水31-32. 5,再加入干混料质量1%_5%的氢氧化钙; (3)将改性好的聚苯颗粒与膨胀玻化微珠保温砂浆混合制成湿颗粒,然后在自然条件下干燥即可。 3. An expansion I as claimed in claim vitrified preparing particles of polystyrene beads of mortar fire insulation wrapped aggregate, characterized by, comprising the steps of: (1) a surface-modified polystyrene particles: polystyrene particles selected from after the metered redispersible polymer latex by aqueous gel O. better than 6-0. 9 with, sprayed on the surface of polystyrene particles continue turning, the surface of the particles to be wetted wrapped polyphenylene completed, and then to its nuclear, was added with stirring cement and fly ash, inorganic cementitious material layer wrapping ー prepare a polyphenylene inorganic particle surface; (2) preparation of expanded glass beads of insulation mortar slurry wt%:. 42 5 cement stage 24. 8-33, 9-12 glass beads. 4, 23-24 quartz sand. 8, lignocellulosic O. 1-1, hydroxypropylmethylcellulose O. 1_1, redispersible powders I. 5 -2. 5, polypropylene staple fibers O. 1-0. 5, β hemihydrate gypsum O. 4-1, the blowing agent O. 3-1, 31-32 water. 5, the dry blend was added 1 mass % _5% calcium hydroxide; (3) the modified polystyrene particles with good expansion glass beads of insulation mortar mixed wet granulation, and then can be dried under natural conditions.
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CN102995777B (en) * 2012-11-22 2015-04-29 北京工业大学 Composite expanded and vitrified microbead heat-insulation mortar slab with ceramsite-reinforced surfaces and production method thereof
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