CN101648797A - Self-leveling terrace powder mortar composite - Google Patents

Self-leveling terrace powder mortar composite Download PDF

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CN101648797A
CN101648797A CN200910054067A CN200910054067A CN101648797A CN 101648797 A CN101648797 A CN 101648797A CN 200910054067 A CN200910054067 A CN 200910054067A CN 200910054067 A CN200910054067 A CN 200910054067A CN 101648797 A CN101648797 A CN 101648797A
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parts
weight
zeolite
powder
mortar
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CN200910054067A
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CN101648797B (en
CN101648797K1 (en
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施晓旦
王养臣
郭和森
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上海东升新材料有限公司
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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
    • 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
    • C04B28/06Aluminous cements
    • 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
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/047Zeolites
    • 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
    • C04B28/14Compositions 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 calcium sulfate cements
    • C04B28/16Compositions 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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
    • 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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0608Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004Compounds chosen for the nature of their cations
    • C04B2103/0006Alkali metal or inorganic ammonium compounds
    • C04B2103/0008Li
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0045Polymers chosen for their physico-chemical characteristics
    • C04B2103/0059Graft (co-)polymers
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/2038Resistance against physical degradation
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/21Efflorescence resistance
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60Flooring materials
    • C04B2111/62Self-levelling compositions

Abstract

The invention provides a self-leveling terrace powder mortar composite and the composite comprises the following components in parts by weight: 250-350 parts of ordinary silicate cement, 50-100 parts of aluminate cement, 250-550 parts of quartz sand, 50-250 parts of heavy calcium carbonate, 10-30 parts of anhydrite and 40-80 parts of zeolite graft re-dispersible emulsion powder. The invention adopts zeolitic inner hole adsorption principle to disperse zeolite evenly in mortar; solid zeolite is crosslinked with graft zeolite inside and outside; in the hydration process of silicate cement, the dense doping among anhydrite, heavy calcium carbonate and crosslinked zeolite changes the lattice of cement so as to ensure the stable long-term strength of mortar and eliminate the phenomenons such as the efflorescence of the self-leveling terrace mortar in later period, sand-stripping and cracking and the like; in addition, aluminum powder is added to increase the wearability and antishrinking property of the terrace mortar and the flexibility of the polymer is increased to improve the breaking strength of the mortar.

Description

自流坪干粉砂浆组合物 Gravity Ping dry mortar composition

技术领域 FIELD

本发明涉及干粉砂浆组合物。 The present invention relates to a dry mortar composition. 背景技术 Background technique

随着国家经济的高速发展,我国的基础建设也在蓬勃发展,重大工程如各种大型体育场馆的建设目前已居世界前列。 With the rapid development of national economy, the infrastructure of our country is also booming, major projects such as the construction of various large stadiums currently in the world. 在各种大型工程建设中,自流坪砂浆作为新型的技术和新材料在国内被越来越重视,已广泛应用于广场、大型体育场馆和道路建设中,作为一个新型材料有非常好的前景。 In various large-scale construction projects, gravity floor mortar as new technologies and new materials are more and more attention in the country, has been widely used in the square, major sports venues and road construction, as a new material has very good prospects. 但自流坪砂浆是砂桨体系中技术要求最高和最复杂的砂浆, 自流坪砂浆的性能稳定是首先要解决的,如后期强度下降,砂浆表面泛白和脱砂现象等问题,还没有真正得到解决。 But gravity floor mortar mortar system is the highest and most complex technical requirements of mortar, mortar and stable performance Gravity Ping is the first to be addressed, such as the late strength decreased, the surface of white mortar and sand off phenomenon and other issues, has not really been solve. 最近几年自流坪砂浆的技术改进被越来越重视,已广泛应用于各种基础建设中。 Gravity Ping mortar recent years technological improvements are more and more attention has been widely used in various infrastructure construction. 自流坪砂浆的根本问题是要解决后期强度下降,砂浆表面泛白和脱砂现象等问题。 Gravity Ping mortar fundamental problem is to solve the late strength decreased, the surface of white mortar and sand off phenomenon and other issues.

本发明的目的在于提供一种自流坪干粉砂浆组合物,以克服现有技术存在的上述缺陷。 Object of the present invention is to provide a gravity floor dry mortar composition, to overcome the above drawbacks of the prior art.

本发明的自流坪干粉砂浆组合物,包括如下重量份的组分: The present invention is gravity floor dry mortar composition, comprising by weight of the following component parts:

发明内容 SUMMARY

普通硅酸盐水泥 Ordinary Portland Cement

250〜350份 250~350 parts

铝酸盐水泥 Aluminate cement

5Q〜100份 5Q~100 parts

石英砂 Quartz sand

250〜550份 250~550 parts

重质碳酸钙 Calcium carbonate

50〜250份 50~250 parts

硬石膏 Anhydrite

1Q〜30份 1Q~30 parts

沸石接枝可再分散乳胶粉 Grafted zeolite powders redispersible

40〜80份; 40~80 parts;

5优选的,还包括: Preferably 5, further comprising:

沸石粉 10〜20份 10-20 parts zeolite powder

减水剂 6〜15份 6~15 parts superplasticizer

消泡剂 2〜4份 2 ~ 4 parts defoamer

酒石酸 1〜3份 Tartaric acid 1 ~ 3 parts

碳酸锂 0.5〜3份 0.5~3 parts of lithium carbonate

纤维素醚 1〜3份 1 ~ 3 parts of cellulose ether

铝粉 1〜3份 1 ~ 3 aluminum parts

触变润滑剂 1〜3份 1 ~ 3 parts thixotropic lubricant

水 230份 230 parts water

所述沸石接枝可再分散乳胶粉,由下列重量份数的原料制成- The zeolite grafted redispersible powder made from the following raw materials in parts by weight -

沸石接枝可再分散乳胶粉用的原料乳液100份 Zeolite powders redispersible grafted with 100 parts of raw milk

聚乙烯醇4〜20份改性轻质碳酸钶3〜20份 4~20 parts polyvinylalcohol modified light 3~20 parts carbonate columbium

所述聚乙烯醇的醇解度优选88~90摩尔%,重均分子量为3500〜5000; 所述改性轻质碳酸钙为是由硬脂酸改性的轻质碳酸钙,其制备方法包括如下步骤: 在9(TC条件下将溶融的硬脂酸喷雾在轻质碳酸钙干粉中,在粉体搅拌机内搅拌60分钟; 硬脂酸和轻质碳酸钙的重量比为1: 50。 The degree of hydrolysis of the polyvinyl alcohol is preferably 88 to 90 mol%, weight average molecular weight 3500~5000; the modified PCC is precipitated calcium carbonate is stearic acid modified preparation method comprising the steps of: spraying the molten stearic acid was stirred at 9 TC conditions (light calcium carbonate powder in the powder in the mixer 60 minutes; by weight of stearic acid and calcium carbonate ratio of 1:50.

所说的沸石接枝可再分散乳胶粉用的原料乳液的制备方法,包括如下步骤-a)将5〜10重量份粒径为0.5〜lum的沸石粉,加入到30〜40重量份水中,加入酸溶液调节pH为4〜5,升温至50〜60°C,再加入1〜3重量份羟乙基乙基纤维素和0.5〜 3份重均分子量为3000〜10000的聚乙烯吡咯烷酮,2重量份甲基丙烯酰氧基丙基三乙氧基硅烷,获得釜底液;b) 将10〜30重量份(甲基)丙烯酸酯、10〜30重量份(甲基)苯乙烯、10〜20重量份叔碳酸乙烯酯,上述三组分合计50重量份;再加入1〜2重量份分子量调节剂、0.2〜 1重量份反应性乳化剂、0.2〜1重量份引发剂和10〜20重量份水,获得混合液61.4〜74 份; Preparing a raw material of an emulsion of said grafted zeolite redispersible powders with, including the steps of -a) 5 to 10 parts by weight of the particle diameter of the zeolite powder 0.5~lum added to 30 to 40 parts by weight of water, acid solution adjusted to pH 4 to 5, warmed to 50~60 ° C, then add 1 ~ 3 parts by weight of ethyl hydroxyethyl cellulose, and 3 parts by 0.5~ weight average molecular weight of polyvinyl pyrrolidone 3000~10000, 2 parts by weight of methacryloxy propyl triethoxy silane, to obtain a liquid bottoms; b) 10~30 parts by weight of the (meth) acrylate, parts of (meth) 10~30 weight of styrene, 10~ 20 parts by weight of vinyl versatate the three component parts by weight in total 50; adding 1 to 2 parts by weight of a molecular weight modifier, 0.2~ 1 parts by weight of a reactive emulsifier, 0.2~1 parts by weight of initiator and 10-20 wt. parts of water to obtain a mixture 61.4~74 parts;

c) 将步骤b)的5〜10重量份混合液、0.1〜1重量份反应性乳化剂、0.1〜l重量份引发剂,加入到步骤a)制成的釜底液中,在75'C〜9(TC条件下反应30〜60分钟; c) step b) is 5 to 10 parts by weight of the mixture, 0.1~1 parts by weight of a reactive emulsifier, 0.1~l parts by weight of initiator is added to step a) forming a bottoms liquid at 75'C ~ 9 reaction (TC conditions 30~60 minutes;

重量份数配比如下: By weight was prepared as follows:

步骤a)的产物38.5〜58份,步骤b)混合液5〜10份,反应性乳化剂0.1〜1份,引发剂0.1〜1份; Step a) 38.5~58 parts of the product of step b) 5 to 10 parts of a mixture, 0.1~1 parts of a reactive emulsifier, initiator 0.1~1 parts;

d) 再加入步骤b)剩余的混合液,优选在2〜3小时内滴加完毕,反应60〜120分钟, 加入碱溶液调节pH至6〜7.5,得到沸石接枝可再分散乳胶粉用的原I4乳液; d) added in step b) the remaining mixture, preferably within 2 to 3 hours the addition was complete, the reaction 60~120 minutes, the solution was adjusted to pH 6~7.5 base, to give a graft zeolite redispersible powders with I4 original emulsion;

所述(甲基)丙烯酸酯选自丙烯酸甲酯、丙烯酸乙酯、丙烯酸正丁酯、丙烯酸异丁酯、甲基丙烯酸甲酯、甲基丙烯酸乙酯、甲基丙烯酸正丁酯、甲基丙烯酸-2-乙基己酯、 甲基丙烯酸-2-羟乙酯或甲基丙烯酸-2-羟丙酯; The (meth) acrylate is selected from methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, methyl methacrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, 2-ethylhexyl methacrylate, 2-hydroxyethyl acrylate or methacrylate, 2-hydroxypropyl methacrylate;

所说的分子量调节剂选自巯基乙酸乙酯、巯基乙酸丁酯、巯基乙醇、2-巯基乙醇或叔十二硫醇中的至少一种; It said molecular weight regulator is selected from ethyl thioglycolate, butyl thioglycolate, mercaptoethanol, 2-mercaptoethanol or tert-dodecyl mercaptan at least one;

所述反应性乳化剂选自烯丙基聚氧乙烯醚硫酸铵、烯丙基聚氧乙烯醚或乙烯基聚氧乙烯醚中的至少一种; The reaction of the at least one emulsifier selected from allyl polyoxyethylene ether sulfate, polyoxyethylene allyl ether or polyoxyethylene vinyl ether;

所述引发剂过硫酸钾、过硫酸钠或过硫酸铵中的至少一种。 Said at least one initiator potassium persulfate, sodium persulfate or ammonium persulfate in.

制备所述沸石接枝可再分散乳胶粉的方法,步骤如下: The method of preparing the grafted zeolite redispersible powder, following steps:

将100重量份可再分散乳胶粉乳液、4〜20重量份聚乙烯醇和3〜20重量份的改性轻质碳酸钙混合,搅拌10〜30分钟,然后干燥,即可获得沸石接枝可再分散乳胶粉, 优选采用喷雾干燥。 100 parts by weight of the redispersible emulsion powder, 4~20 parts by weight of polyvinyl alcohol and 3~20 parts by weight of a modified light calcium carbonate were mixed and stirred 10~30 minutes, and then dried, to obtain the zeolite may be further grafted dispersible powders, preferably by spray drying. 所述普通硅酸盐水泥的强度等级优选为42.5; 所述铝酸盐水泥即根据国家标准GB201-2000定义的铝酸盐水泥; 所述石英砂的粒径为70〜140目; 所述重质碳酸钙的粒径为200〜350目; The Portland cement is preferably strength class 42.5; i.e., the aluminate cement Cement according to national standards GB201-2000 defined above; particle size of the quartz sand is 70~140 mesh; said weight ground calcium carbonate has a particle size of 200~350 mesh;

所述减水剂选自聚羧酸类减水剂,例如江苏兴邦化学有限公司产品; 所述消泡剂选自有机硅烷消泡剂,例如易来泰公司产品; The polycarboxylic acid-based water-reducing agent is selected from water reducing agent, such as 1231 prosperous Chemical Company; defoaming agent is selected from the organosilanes antifoams, e.g. Elotex Products;

所述纤维素醚选自羧甲基纤维素醚、甲基纤维素醚、乙基纤维素醚或羟乙基纤维素醚中的至少一种,优选重均分子量为2〜4万; The cellulose ether is selected from carboxymethyl cellulose ether, at least one, preferably 2 ~ 4 Wan weight average molecular weight methyl cellulose ethers, ethyl cellulose ethers or hydroxyethyl cellulose ether;

所述触变润滑剂的化学名称为层状硅酸盐,采用市售产品,例如:山东北方现代化学有限公司牌号为FN70的产品; The chemical name for thixotropic lubricant layered silicate, using a commercially available product, for example: Modern Chemical Co. Shandong North FN70 product designations;

其他组分可以使用本领域常规市售产品。 Other components may be used commercially available products conventional in the art.

本发明自流坪干粉砂浆组合物,采用本领域常规方法制备,例如(但不限于)采用如下制备方法:70'C时,将上述的各个组分,除水外,混合搅拌30分钟,制成干粉, 然后装袋包装,使用时再加水。 The present invention is gravity floor dry mortar composition, prepared by conventional methods used in the art, (but not limited to), for example, using the following preparation method: 70'C when the above-mentioned respective components, in addition to water, mixed and stirred for 30 minutes to produce dry, then bag packaging, plus water use.

本发明的自流坪干粉砂浆组合物采用了沸石接枝可再分散乳胶粉,利用沸石内孔吸附的原理,通过聚合反应的接枝使有机聚合物覆包沸石表面,在水泥砂浆中覆包沸石表面的有机聚合物再分散成乳液,沸石均匀地分散砂浆中,固体沸石与接枝沸石内外交联, 在铝酸盐水泥水化过程中,硬石膏、重钙和交联沸石的紧密掺杂改变了水泥的晶格,使砂浆后期强度稳定,消除了自流坪砂浆后期的泛白、脱砂开裂等现象的产生,同时铝粉的加入,提高了地坪砂浆的耐磨性和抗收縮性,聚合物的柔韧性提高了砂浆的抗折强度。 Gravity Ping dry mortar composition of the present invention uses the principle of grafted zeolite redispersible powders using the hole Adsorption by graft polymerization of the organic polymer coating the surface of the zeolite package, package covering cement mortar zeolite organic polymer surfaces redispersed into an emulsion, a zeolite is uniformly dispersed in the mortar, the solid zeolite was zeolite graft crosslinking, aluminate in the cement hydration process, anhydrite, TSP and tightly crosslinked zeolite doped changing the lattice of cement, mortar late the strength and stability, eliminating the gravity floor late mortar white, sand off the cracking phenomenon produce, while adding aluminum powder, improved wear resistance and resistance to shrinkage of floor mortar , the polymer increases the flexibility of the flexural strength of mortar. 具体实施方式 Detailed ways

实施例1 Example 1

沸石接枝可再分散乳胶粉的制备: Zeolite may be prepared graft polymer powders redispersible:

8加入到40份水中,加入重量百分比浓度10%的醋酸水溶液(下同)调节PH至4,升温至5(TC,再加入l份羟乙基乙基纤维素和0.5份重均分子量为3000的聚乙烯吡咯烷酮,和2份甲基丙烯酰氧基丙基三乙氧基硅垸制成釜底液; 8 was added to 40 parts of water, and a concentration of 10% by weight aqueous acetic acid solution (hereinafter the same) adjusted to PH 4, warmed to 5 (TC, then add l hydroxyethyl ethyl cellulose, and 0.5 parts by weight average molecular weight of 3,000 parts polyvinylpyrrolidone, and 2 parts of methacryloxy propyl triethoxysilane embankment made bottoms liquid;

b) 将10份甲基丙烯酸酯甲酯、20份(甲基)苯乙烯、20份叔碳酸乙烯酯,l份巯基乙酸丁酯混合制成混合单体,再加入0.2份烯丙基聚氧乙烯醚硫酸铵、0.2份过硫酸钾和10份水中,配成混合液; b) 10 parts of methyl methacrylate, 20 parts of (methyl) styrene, 20 parts of vinyl versatate, l parts of butyl thioglycolate mixed to prepare a mixed monomer was further added 0.2 parts of polyoxyethylene allyl vinyl ether sulfate, 0.2 parts of potassium persulfate and 10 parts of water to form a mixture;

c) 取5份混合液、Ol份烯丙基聚氧乙烯醚硫酸铵、Ol份过硫酸钾,加入到a)步骤制成的釜底液中,在75"C条件下反应30分钟; c) 5 parts of the mixture taken, Ol parts of allyl polyoxyethylene ether sulfate, Ol parts of potassium persulfate, was added to a) was prepared bottoms step, reacted at 75 "C for 30 minutes;

d) 再加入余下的56.4份的混合液,2小时内滴加完毕,再反应1小时,加入重量百分比浓度10%的氢氧化钠水溶液(下同)调节pH至7.5,得到沸石接枝乳液,乳液的固含量为48.3%,粘度220cps, pH为6.3。 d) adding 56.4 parts of the remaining mixed solution addition was complete in 2 hours, 1 hour, 10% aqueous sodium hydroxide concentration by weight (hereinafter the same) adjusted to pH 7.5, to give an emulsion grafted zeolite, solids content of the emulsion was 48.3%, a viscosity of 220cps, pH 6.3. 粘度测试使用NDJ-1旋转粘度计,2#转子,下同。 Viscosity Test using NDJ-1 viscometer, spindle # 2, the same below.

聚乙烯醇溶液:将50克聚乙烯醇加入250克水中,升温至9(TC溶解,冷却备用; 将250g沸石接枝可再分散乳胶粉用的原料乳液、16g聚乙烯醇溶液和13g改性轻质碳酸钙搅拌10分钟,制成待喷雾乳液,采用江苏范群干燥设备厂提供的LPG-5高速离心喷雾干燥机对待喷雾乳液进行干燥。干燥后所得的粉末通过IOO目筛网过滤,即可获得沸石接枝可再分散乳胶粉。 Polyvinyl alcohol solution: 50 g of polyvinyl alcohol was added 250 g of water, warmed to 9 (TC solution was cooled stand; 250g zeolite graft redispersible polymer powders used in the raw milk, 13g and 16G-modified polyvinyl alcohol solution PCC was stirred for 10 minutes to prepare an emulsion to be sprayed, using LPG-5 Jiangsu Fan speed centrifugal spray drying plant population provides treated emulsion spray dried. the resulting dried powder was filtered through a mesh screen IOO, i.e. grafted zeolite obtained redispersible powder.

实施例2 Example 2

沸石接枝可再分散乳胶粉乳液的制备: Zeolite may be prepared graft polymer powders re-dispersible emulsion:

a) 按重量计算,将10份沸石粉(粒径为lum),加入到40份水中,加入重量浓度为10X的醋酸水溶液调节PH至5,升温至50。 a) by weight, 10 parts of the zeolite powder (particle diameter Lum), were added to 40 parts of water was added at a concentration of 10X by weight aqueous acetic acid to adjust the PH to 5, warmed to 50. C,再加入1份羟乙基乙基纤维素和0.5重均分子量为5000的聚乙烯吡咯烷酮,和2份甲基丙烯酰氧基丙基三乙氧基硅垸; C, was added 1 and 0.5 parts of hydroxyethyl ethyl cellulose, polyvinyl pyrrolidone weight average molecular weight 5000, and 2 parts of methacryloxy propyl triethoxysilane embankment;

b) 将10份甲基丙烯酸乙酯、20份甲基苯乙烯、20份叔碳酸乙烯酯和1份分子量调节剂巯基乙醇混合制成混合单体,取50份所述混合单体加入0.2份烯丙基聚氧乙烯醚、 0.2份过硫酸钠和10份水中,配成混合液; b) 10 parts of ethyl methacrylate, 20 parts of methyl styrene, 20 parts of vinyl versatate molecular weight modifier and 1 part mercaptoethanol blend the monomer mixture, the monomer mixture (50 parts) was added 0.2 parts of allyl polyoxyethylene ether, 0.2 parts of sodium persulfate and 10 parts of water to form a mixture;

c) 取5份混合液、Ol份烯丙基聚氧乙烯醚和Ol份过硫酸钠,加入到a)步骤制成的釜底液中,在75'C条件下反应30分钟; c) Take the mixture 5 parts, parts Ol parts of allyl polyoxyethylene ether and Ol sodium persulfate was added to a) solution made bottoms step, the reaction at 75'C for 30 min;

d) 再加入余下56.4份的混合液,2小时内滴加完毕,再反应1小时,加入氢氧化钠水溶液调节pH至6,得到沸石接枝乳液,乳液的固含量为48.7%,粘度248cps, pH为7.1。 d) was added 56.4 parts of the remaining liquid mixture, the addition was complete within 2 hours, and then reacted for 1 hour, aqueous sodium hydroxide was added to adjust the pH 6, to give an emulsion grafted zeolites, solids content of the emulsion was 48.7%, a viscosity of 248cps, pH was 7.1.

地坪砂浆用可再分散乳胶粉的制备- Floor mortar prepared with polymer powders redispersible -

聚乙烯醇溶液:将50克聚乙烯醇加入150克水中,升温至90'C溶解后,冷却备用; 将167g沸石接枝可再分散乳胶粉乳液、40g聚乙烯醇溶液和5g改性轻质碳酸钙混合, 搅拌20分钟制成待喷雾乳液,然后按照实施例1的方法进行制备,获得沸石接枝可再分散乳胶粉。 Polyvinyl alcohol solution: 50 g of polyvinyl alcohol was added 150 g of water, warmed to 90'C after the solution was cooled stand; 167g zeolite graft redispersible latex powders, 4Og modified polyvinyl alcohol solution and 5g of light mixing calcium carbonate, stirred for 20 minutes to prepare an emulsion to be sprayed, and then prepared as in Example 1 to obtain the grafted zeolite redispersible powders.

实施例3 Example 3

普通硅酸盐水泥(42.5) 300份、铝酸盐水泥100份、石英砂(70〜140目)400 份重质碳酸钙(200〜350目)140份,硬石膏10份、实施例1的沸石接枝可再分散乳胶粉40份、沸石粉10份、减水剂6份(聚羧酸高效减水剂,苏州兴邦化学建材有限公司,牌号SUNBOPC-1030的产品,下同)、消泡剂(杭州海川化工股份有限公司,牌号为D-801的产品,下同)2份、酒石酸1份、碳酸锂0.5份、羧甲基纤维素醚(2万分子量)1份、铝粉1份、触变润滑剂1份、水230份。 Ordinary Portland Cement (42.5) 300 parts, 100 parts of cement, quartz sand (70~140 mesh) 400 parts by weight of calcium carbonate (200~350 mesh) 140 parts, 10 parts of anhydrite, Example 1 grafted zeolite redispersible powder 40 parts, 10 parts of zeolite powder, 6 parts of superplasticizer (polycarboxylate superplasticizer, Suzhou Xingbang chemical Building Materials Co., Ltd., product designation SUNBOPC-1030, hereinafter the same), elimination foaming agent (Hangzhou Ocean Power Chemical Corporation under the designation D-801 product, the same below) 2 parts, 1 part of tartaric acid, 0.5 parts of lithium carbonate, carboxymethylcellulose ether (molecular weight 20,000), 1 part of aluminum powder 1 parts of a thixotropic lubricant parts, 230 parts of water.

实施例3 Example 3

普通硅酸盐水泥(42.5) 250份、铝酸盐水泥50份、石英砂(70〜140目)300 份、重质碳酸钙(200〜350目)300份、硬石膏20份、沸石接枝可再分散乳胶粉60 份、沸石粉20份、减水剂7份、消泡剂3份、酒石酸2份、碳酸锂1.5份、甲基纤维素醚(2万分子量)1.5份、铝粉2份、触变润滑剂1.5份、水230份。 Ordinary Portland Cement (42.5) 250 parts, 50 parts of cement, quartz sand (70~140 mesh) 300 parts of heavy calcium carbonate (200~350 mesh) 300 parts, 20 parts of anhydrite, zeolite graft redispersible powders 60 parts, 20 parts zeolite powder, 7 parts water reducing agent, a defoaming agent 3 parts, 2 parts of tartaric acid, 1.5 parts of lithium carbonate, methyl cellulose ether (molecular weight 20,000) 1.5 parts of aluminum powder 2 parts, 1.5 parts thixotropic lubricants, 230 parts of water.

10实施例5 Example 10 5

普通硅酸盐水泥(42.5) 350份、铝酸盐水泥80份、石英砂(70〜140目)250份重质碳酸钙(200〜350目)180份,硬石膏30份、实施例2的沸石接枝可再分散乳胶粉80份、沸石粉30份、减水剂8份、消泡剂4份、酒石酸3份、碳酸锂3份、乙基纤维素醚(3万分子量)3份、铝粉3份、触变润滑剂2份、水230份。 Ordinary Portland Cement (42.5) 350 parts, 80 parts of cement, quartz sand (70~140 mesh) 250 parts by weight of calcium carbonate (200~350 mesh) 180 parts, 30 parts of anhydrite, Example 2 grafted zeolite redispersible powder 80 parts, 30 parts zeolite powder, 8 parts of water reducing agent, a defoaming agent 4 parts, 3 parts of tartaric acid, 3 parts of lithium carbonate, ethyl ether cellulose (molecular weight 30,000) 3 parts, 3 parts aluminum, 2 parts thixotropic lubricants, 230 parts of water.

实施例6 Example 6

普通硅酸盐水泥(42.5) 330份、铝酸盐水泥60份、石英砂(70〜140目)480 份,重质碳酸妈(200〜350目)50份,硬石膏15份、实施例1的沸石接枝可再分散乳胶粉50份、沸石粉15份、减水剂6.5份、消泡剂2.5份、酒石酸2.5份、碳酸锂2 份、羟乙基纤维素醚(4万分子量)1.5份、铝粉1.5、触变润滑剂2.5份、水230份。 Ordinary Portland Cement (42.5) 330 parts, 60 parts aluminate cement, quartz sand (70~140 mesh) 480 parts of mother carbonate heavy (200~350 mesh) 50 parts, 15 parts of anhydrite, Example 1 grafted zeolite redispersible powder 50 parts, 15 parts zeolite powder, 6.5 parts superplasticizer, a defoaming agent 2.5 parts, 2.5 parts tartaric acid, 2 parts of lithium carbonate, hydroxyethyl cellulose ether (molecular weight 40,000) 1.5 parts, 1.5 aluminum, 2.5 parts thixotropic lubricants, 230 parts of water.

实施例7 Example 7

普通硅酸盐水泥(42.5) 250份、铝酸盐水泥60份、石英砂(70〜140目)550份重质碳酸钙(200〜350目)80份,硬石膏10份、实施例2的沸石接枝可再分散乳胶粉40 份、沸石粉10份、减水剂7.5份、消泡剂2.5份、酒石酸2.5份、碳酸锂2.5份、羧甲基纤维素醚(2万分子量)2.5份、铝粉2.5份、触变润滑剂2.5份、水230份。 Ordinary Portland Cement (42.5) 250 parts, 60 parts aluminate cement, quartz sand (70~140 mesh) 550 parts by weight of calcium carbonate (200~350 mesh) 80 parts, 10 parts of anhydrite, Example 2 grafted zeolite redispersible powder 40 parts, 10 parts of zeolite powder, 7.5 parts superplasticizer, a defoaming agent 2.5 parts, 2.5 parts of tartaric acid, 2.5 parts of lithium carbonate, carboxymethylcellulose ether (molecular weight 20,000) 2.5 parts , 2.5 parts of aluminum powder, 2.5 parts thixotropic lubricants, 230 parts of water.

实施例8 Example 8

普通硅酸盐水泥(42.5) 260份、铝酸盐水泥70份、石英砂(70〜140目)200份重质碳酸钙(200〜350目)400份,硬石膏10份、实施例1的沸石接枝可再分散乳胶粉50份、沸石粉10份、减水剂15份、消泡剂2.8份、酒石酸1.8份、碳酸锂2.5份、 羧甲基纤维素醚(2万分子量)1.8份、铝粉1.8份、水230份。 Ordinary Portland Cement (42.5) 260 parts, 70 parts of aluminate cement, quartz sand (70~140 mesh) 200 parts by weight of calcium carbonate (200~350 mesh) 400 parts, 10 parts of anhydrite, Example 1 grafted zeolite redispersible powder 50 parts, 10 parts of zeolite powder, 15 parts water reducing agent, a defoaming agent 2.8 parts, 1.8 parts of tartaric acid, 2.5 parts of lithium carbonate, carboxymethylcellulose ether (molecular weight 20,000) 1.8 parts , 1.8 parts of aluminum powder, 230 parts of water.

实施例9 Example 9

普通硅酸盐水泥(42.5) 310份、铝酸盐水泥75份、石英砂(70〜140目)340 份重质碳酸钙(200〜350目)180份,硬石膏15份、实施例2的沸石接枝可再分散乳胶粉60份、沸石粉20份、减水剂7.5份、消泡剂3.5份、酒石酸1.2份、碳酸锂1.6、 羧甲基纤维素醚(3万分子量)1.2份、铝粉1.2份、触变润滑剂2.8份、水230份。 Ordinary Portland Cement (42.5) 310 parts, 75 parts of aluminate cement, quartz sand (70~140 mesh) 340 parts by weight of calcium carbonate (200~350 mesh) 180 parts, 15 parts of anhydrite, Example 2 grafted zeolite redispersible powder 60 parts, 20 parts zeolite powder, 7.5 parts superplasticizer, a defoaming agent 3.5 parts, 1.2 parts of tartaric acid, 1.6 lithium carbonate, carboxymethyl cellulose ether (molecular weight 30,000) 1.2 parts, 1.2 parts aluminum, 2.8 parts thixotropic lubricants, 230 parts of water.

实施例10 Example 10

普通硅酸盐水泥(42.5) 250份、铝酸盐水泥50份、石英砂(70〜140目)400份重质碳酸钙(200〜350目)200份,硬石膏10份、实施例1的沸石接枝可再分散乳胶粉80份、沸石粉10份、减水剂10份、消泡剂3.8份、酒石酸2.8份、碳酸锂2.9份、羧甲基纤维素醚(4万分子量)1.4份、铝粉2.6份、触变润滑剂1.5份、水230份。 Ordinary Portland Cement (42.5) 250 parts, 50 parts of cement, quartz sand (70~140 mesh) 400 parts by weight of calcium carbonate (200~350 mesh) 200 parts, 10 parts of anhydrite, Example 1 grafted zeolite redispersible powder 80 parts, 10 parts of zeolite powder, 10 parts water reducing agent, a defoaming agent 3.8 parts, 2.8 parts of tartaric acid, 2.9 parts of lithium carbonate, carboxymethyl cellulose ether (molecular weight 40,000) 1.4 parts , 2.6 parts of aluminum powder, 1.5 parts thixotropic lubricants, 230 parts of water.

实施例11 Example 11

普通硅酸盐水泥(42.5) 350份、铝酸盐水泥50份、石英砂(70〜140目)150 份重质碳酸钙(200〜350目)350份,硬石膏30份、实施例2的沸石接枝可再分散乳胶粉50份、沸石粉20份、减水剂12份、消泡剂3.2份、酒石酸2.7份、碳酸锂1.9份、 羧甲基纤维素醚(2万分子量)2.3份、铝粉1.7份、触变润滑剂1.8份、水230份。 Ordinary Portland Cement (42.5) 350 parts, 50 parts of cement, quartz sand (70~140 mesh) 150 parts by weight of calcium carbonate (200~350 mesh) 350 parts, 30 parts of anhydrite, Example 2 grafted zeolite redispersible powder 50 parts, 20 parts of zeolite powder, 12 parts water reducing agent, a defoaming agent 3.2 parts, 2.7 parts of tartaric acid, 1.9 parts of lithium carbonate, carboxymethylcellulose ether (molecular weight 20,000) 2.3 parts , 1.7 parts of aluminum powder, 1.8 parts thixotropic lubricants, 230 parts of water.

实施例12 Example 12

上海恒星建筑新材料有限公司自流坪干粉产品; New Building Materials Co., Ltd. Shanghai stellar gravity floor dry goods;

将上述实施例配制的自流坪干粉砂浆组合物加水后搅拌制成砂浆: The above embodiments formulated gravity floor dry mortar compositions made by adding water after mixing mortar:

一、 制成7.07 cmx7.07 cmx7.07 cm试模36个,在标准条件(22°C、相对湿度50±10%)下养护28天,进行立方体抗压强度测定。 A, made 7.07 cmx7.07 cmx7.07 cm test mold 36, cured at standard conditions (22 ° C, a relative humidity of 50 ± 10%) 28 days for the cube compressive strength was measured.

二、 制成7.07cmx7.07 cmx7.07 cm试模18个,自然养护,进行后期强度测定。 Second, the test mode is made 7.07cmx7.07 cmx7.07 cm 18, natural curing, post-strength measurement.

三、 制成4cmx4cmxl6cm试模18个,在标准条件(22'C、相对湿度5(>tl0%)下养护28天,收縮性测定、抗折强度测定; Third, the test mode is made 4cmx4cmxl6cm 18, under standard conditions (22'c, relative humidity 5 (> tl0%) at 28 days curing, shrinkage measurement, flexural strength measurement;

四、 制成4cmx4cmxl6cm试模18个,自然养护,进行后期抗折强度测定; Fourth, the test mode is made 4cmx4cmxl6cm 18, natural curing, post-flexural strength measurement;

五、 制成200cmx200cmx0.5cm(水泥基)自流坪四个,制成200 cmx200 cmxlcm(水泥基)自流坪四个,制成200cmx200xl.5cm(水泥基)自流坪四个.自然养护12个月;六、 制成5 cmx5 cmx0.5cm(水泥基)自流坪36个,制成5 cmx5 cmxlcm(水泥基)自流坪12个,制成5cmx5cmxl.5cm(水泥基)自流坪12个.在标准条件(22°C、相对湿度50±10%)下养护28天,粘接强度测定; V. made 200cmx200cmx0.5cm (cement-based) four gravity floor, made of 200 cmx200 cmxlcm (cement-based) four gravity floor, made 200cmx200xl.5cm (cement-based) Nature Conservancy four gravity floor 12 months; six to prepare 5 cmx5 cmx0.5cm (cement-based) gravity floor 36, made of 5 cmx5 cmxlcm (cement-based) gravity floor 12, made 5cmx5cmxl.5cm (cement-based) gravity floor 12 at standard conditions ( 22 ° C, a relative humidity of 50 ± 10%) at 28 days curing, the adhesive strength measurement;

七、 测试方法:按照中华人民共和国建材行业标准JC/T985-2005地面用水泥基自流坪砂浆、GB/T 1768漆膜耐磨性测定法、JC/T547-2005陶瓷墙地砖胶粘剂、GB/T 17671 水泥胶砂强度检验方法。 VII Test Method: in accordance with the People's Republic of China building materials industry standard JC / T985-2005 terrestrial gravity floor mortar cement-based, GB / T 1768 Determination of abrasion resistance film method, JC / T547-2005 adhesive ceramic tiles, GB / T 17671 cement mortar strength test method.

检测结果见下表。 The detection results in the table below.

从测定数据可以认为本发明的自流坪干粉砂浆组合物,后期强度稳定,而对比样品的后期强度下降非常大,本发明的自流坪砂浆长期自然养护后,表面不泛白,不脱砂。 From the measurement data may be considered gravity floor dry mortar composition of the present invention was stable late strength, while the comparative sample-term strength decreases very large, the present invention screeds gravity long-term conservation of the natural, non-white surface, not from sand. 而对比样品长期自然养护后表面泛白,脱砂。 After the long-term comparative sample surface whitening natural conservation, the sand off. <table>table see original document page 14</column></row> <table><table>table see original document page 15</column></row> <table> <Table> table see original document page 14 </ column> </ row> <table> <table> table see original document page 15 </ column> </ row> <table>

Claims (8)

1.自流坪干粉砂浆组合物,其特征在于,包括如下重量份的组分: 普通硅酸盐水泥250~350份铝酸盐水泥50~100份石英砂250~550份重质碳酸钙50~250份硬石膏10~30份沸石接枝可再分散乳胶粉40~80份。 1. Gravity Ping dry mortar composition comprising by weight parts of the following components: Portland cement aluminate cement 250 to 350 parts to 100 parts of quartz sand 50 250 ~ 550 ~ 50 parts by weight of calcium carbonate 250 parts of anhydrite 10 to 30 parts grafted zeolite redispersible powders 40 to 80 parts.
2.根据权利要求l所述的自流坪干粉砂浆组合物,其特征在于,还包括:沸石粉 10〜20份减水剂 6〜15份消泡剂 2〜4份酒石酸 1〜3份碳酸锂 0.5〜3份纤维素醚 1〜3份铝粉 1〜3份触变润滑剂 1〜3份水230份' The gravity floor of the dry mortar composition as claimed in claim l, characterized in that, further comprising: 10-20 parts zeolite powder superplasticizer 6~15 parts defoamer ~ 4 1 ~ 3 parts of tartaric acid parts of lithium carbonate cellulose ether 0.5~3 1~3 parts parts parts thixotropic aluminum 1~3 1~3 parts of water 230 parts of a lubricant '
3.根据权利要求1或2所述的自流坪干粉砂浆组合物,其特征在于,所述沸石接枝可再分散乳胶粉,由下列重量份数的原料制成:沸石接枝可再分散乳胶粉用的原料乳液100份聚乙烯醇4〜20份改性轻质碳酸钙3〜20份。 The gravity floor dry mortar composition of claim 1 or claim 2, wherein the zeolite grafted redispersible powder made from the following raw materials in parts by weight: zeolite graft redispersible with raw milk powder 100 parts polyvinylalcohol modified parts 4~20 3~20 parts of precipitated calcium carbonate.
4. 根据权利要求3所述的自流坪干粉砂浆组合物,其特征在于,所述聚乙烯醇的醇解度为88〜90摩尔%,重均分子量为3500〜5000。 4. The gravity floor dry mortar composition of claim 3, wherein the polyvinyl alcohol solution of 88~90 mol%, weight average molecular weight 3500~5000.
5. 根据权利要求3所述的自流坪干粉砂浆组合物,其特征在于,所述改性轻质碳酸钙是由硬脂酸改性的轻质碳酸钙。 The gravity floor dry mortar composition according to claim 3, wherein the precipitated calcium carbonate is modified by the stearate modified PCC.
6. 根据权利要求3所述的自流坪干粉砂桨组合物,其特征在于,所说的沸石接枝可再分散乳胶粉用的原料乳液的制备方法,包括如下步骤:a) 将5〜10重量份粒径为0.5〜lum的沸石粉,加入到30〜40重量份水中,加入酸溶液调节pH为4〜5,升温至50〜60°C,再加入1〜3重量份羟乙基乙基纤维素和0.5〜 3份重均分子量为3000〜10000的聚乙烯吡咯烷酮,2重量份甲基丙烯酰氧基丙基三乙氧基硅烷,获得釜底液;b) 将10〜30重量份(甲基)丙烯酸酯、10〜30重量份(甲基)苯乙烯和10〜20重量份叔碳酸乙烯酯混合,上述三组分合计50重量份;再加入1〜2重量份分子量调节剂、 0.2〜1重量份反应性乳化剂、0.2〜1重量份引发剂和10〜20重量份水,获得混合液61.4〜74份;c) 将步骤b)的5〜10重量份混合液、0.1〜1重量份反应性乳化剂、0.1〜l重量份引发剂,加入到步骤a)制成的釜底液中, 6. gravity floor pitch of dry powder composition according to claim 3, wherein said grafted zeolite prepared redispersible polymer powder with the raw milk, comprising the steps of: a) 5 to 10 parts by weight of zeolite powder 0.5~lum particle diameter of 30 to 40 parts by weight was added to the water, adding an acid solution adjusted to pH 4 to 5, warmed to 50~60 ° C, then add 1 ~ 3 parts by weight of hydroxyethyl acetate 0.5~ cellulose and 3 parts of weight average molecular weight of polyvinyl pyrrolidone 3000~10000, parts by weight of 2-methacryloxy propyl triethoxy silane, to obtain a liquid bottoms; b) 10~30 parts by weight of the (meth) acrylate, 10~30 parts by weight of (meth) 10-20 parts by weight of styrene and vinyl versatate mixing, the total weight of the three component parts 50; adding 1 to 2 parts by weight of a molecular weight modifier, 0.2~1 parts by weight of a reactive emulsifier, 0.2~1 parts by weight of initiator, and 10-20 parts by weight of water to obtain a mixture 61.4~74 parts; c) step b) is 5 to 10 parts by weight of the mixture, 0.1~ 1 parts by weight of a reactive emulsifier, 0.1~l parts by weight of initiator is added to step a) was prepared in the bottoms, 75'C〜卯t:条件下反应30〜60分钟;重量份数配比如下:步骤3)的产物38.5〜58份,步骤b)混合液5〜10份,反应性乳化剂0.1〜1份,引发剂0.1〜1份;d) 再加入步骤b)剩余的混合液,在2〜3小时内滴加完毕,反应60〜120分钟,加入碱溶液调节pH至6〜7.5,得到沸石接枝可再分散乳胶粉用的原料乳液; 75'C~ T d: 30~60 minutes under the reaction conditions; parts by weight was prepared as follows: Step 3) 38.5~58 parts of the product of step b) 5 to 10 parts of a mixture, 0.1~1 parts of reactive emulsifier , 0.1~1 parts initiator; D) added in step b) the residual mixture was added dropwise over 2 to 3 hours completed the reaction 60~120 minutes, the solution was adjusted to pH 6~7.5 base, to give a graft zeolite redispersible powders by emulsion feedstock;
7. 根据权利要求3所述的自流坪干粉砂浆组合物,其特征在于,所述(甲基)丙烯酸酯选自丙烯酸甲酯、丙烯酸乙酯、丙烯酸正丁酯、丙烯酸异丁酯、甲基丙烯酸甲酯、甲基丙烯酸乙酯、甲基丙烯酸正丁酯、甲基丙烯酸-2-乙基己酯、甲基丙烯酸-2-羟乙酯或甲基丙烯酸-2-羟丙酯;所说的分子量调节剂选自巯基乙酸乙酯、巯基乙酸丁酯、巯基乙醇、2-巯基乙醇或叔十二硫醇中的至少一种;所述反应性乳化剂选自烯丙基聚氧乙烯醚硫酸铵、烯丙基聚氧乙烯醚或乙烯基聚氧乙烯醚中的至少一种;所述引发剂过硫酸钾、过硫酸钠或过硫酸铵中的至少一种;所述减水剂选自聚羧酸类减水剂;所述消泡剂选自有机硅垸消泡剂;所述纤维素醚选自羧甲基纤维素醚、甲基纤维素醚、乙基纤维素醚或羟乙基纤维素醚中的至少一种,重均分子量为2〜4万。 7. Gravity Ping dry mortar composition according to claim 3, wherein the (meth) acrylate is selected from methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, methyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, 2-ethylhexyl methacrylate, 2-hydroxyethyl acrylate or methacrylate, 2-hydroxypropyl methacrylate; said the molecular weight modifier is selected from ethyl thioglycolate, butyl thioglycolate, mercaptoethanol at least one, 2-mercaptoethanol or t-dodecyl mercaptan; the reactive emulsifier is selected from allyl polyoxyethylene ether at least one ammonium, allyl polyoxyethylene ether or a polyoxyethylene vinyl ether; the initiator potassium persulfate, sodium persulfate or at least one of ammonium persulfate; water-reducing agent is selected from the since polycarboxylic acid-based water-reducing agent; the defoaming agent is selected from silicone antifoaming embankment; the cellulose ether is selected from carboxymethyl cellulose ethers, methyl cellulose ethers, ethyl cellulose or hydroxyalkyl ether ethyl cellulose ether in at least one of weight average molecular weight ~ 4 million.
8.根据权利要求37所述的自流坪干粉砂桨组合物,其特征在于,所述纤维素醚重均分子量为2〜4万。 Gravity floor pitch of dry powder composition according to claim 37, wherein the cellulose ether weight average molecular weight ~ 4 million.
CN 200910054067 2009-06-29 2009-06-29 Self-leveling terrace powder mortar composition CN101648797B (en)

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