CN105367008A - Emulsifier-free styrene-acrylic emulsion polymer concrete and preparation method thereof - Google Patents
Emulsifier-free styrene-acrylic emulsion polymer concrete and preparation method thereof Download PDFInfo
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- CN105367008A CN105367008A CN201510933729.9A CN201510933729A CN105367008A CN 105367008 A CN105367008 A CN 105367008A CN 201510933729 A CN201510933729 A CN 201510933729A CN 105367008 A CN105367008 A CN 105367008A
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Abstract
The invention belongs to the field of composites, and particularly relates to emulsifier-free styrene-acrylic emulsion polymer concrete and a preparation method thereof. The emulsifier-free styrene-acrylic emulsion polymer concrete is prepared from, by weight, 100-200 parts of cement, 50-100 parts of sand, 20-50 parts of mica powder, 0.1-0.2 part of water reducer, 0.01-0.06 part of antifoaming agent, 10-60 parts of emulsifier-free styrene-acrylic emulsion and 50-150 parts of water. The preparation method is simple, the raw materials by weight are stirred and evenly mixed and then are poured into a mold, the mold is detached after proper conditions are met, standard curing and drying curing are carried out, and finally the emulsifier-free styrene-acrylic emulsion polymer concrete is obtained. The prepared emulsifier-free styrene-acrylic emulsion polymer concrete has excellent insulation performance and proper compression strength, and is suitable for large-scale industrial production.
Description
Technical field
The invention belongs to field of compound material, be specifically related to a kind of St/ba Soap-free Emulsion polymer concrete and preparation method thereof.
Background technology
Along with the develop rapidly of modern science and technology, the performance of material is had higher requirement.Polymer concrete is by polymkeric substance admixture, mix, is impregnated into a kind of organic composite material formed in concrete, its performance combines polymer materials, cement inorganic material and concrete material performance, has the advantage such as high, the high insulation of intensity, high temperature resistant, easy heat radiation, good endurance, wear-resisting, resistance to chemical attack, high permeability resistant, high elastic coefficient.Soap-free emulsion refers to, in emulsion polymerization process, do not add emulsifying agent completely, or only adds the emulsion of micro-emulsifying agent (being less than micelle-forming concentration CMC).Compared to general polymer emulsion, emulsifier-free emulsion polymerization has following advantage: 1. owing to not having adding of emulsifying agent, improve the electrical property of polymerisate, optical property, surface property, water tolerance and film-forming properties; 2. letex polymerization cost reduces, and aftertreatment technology reduces; 3. be polymerized the latex particle monodispersity obtained good, surface " cleaning ", particle diameter is large, and film forming speed is fast; 4. form charged layer by adding ionic initiator residue, wetting ability or ionic comonomer etc. on the surface of polymer beads, thus realize the stability of soap-free emulsion.Therefore, adopt soap-free emulsion replacement conventional emulsions to prepare polymkeric substance few due to foreign matter contents such as emulsifying agents, polymer concrete can be made to possess more excellent performance.The present invention is to provide a kind of St/ba Soap-free Emulsion polymer concrete, the fields such as prefabricated sandwich panelling, underground structure (as manhole), sewer line, electric insulation, transformer base can be applied to.
Summary of the invention
The present invention is intended to the more excellent polymer concrete of processability, introduces St/ba Soap-free Emulsion and substitutes conventional emulsions, make concrete test block internal voids aperture be less than 100 μm, have excellent insulating property and mechanical property.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of St/ba Soap-free Emulsion polymer concrete, be made up of the raw material of following weight part: cement 100-200 part, sand 50-100 part, mica powder 20-50 part, water reducer 0.1-0.2 part, defoamer 0.01-0.06 part, St/ba Soap-free Emulsion 10-60 part, water 50-150 part.
Concrete, described cement the best is ordinary Portland cement, described sand the best is river sand, solid content the best of described St/ba Soap-free Emulsion is 30%-48%, described water reducer the best is poly carboxylic acid series water reducer, described defoamer the best is DerformW-098, the one namely in the modest defoamer of this moral of hamming.Polycarboxylate water-reducer (PolycarboxylateSuperplasticizer) is a kind of high-performance water reducing agent, is a kind of cement dispersants during cement concrete uses.Be widely used in the engineerings such as highway, bridge, dam, tunnel, Highrise buildings.This product environmental protection, nonflammable, non-explosive, train and Automobile Transportation can be used safely.
Preferably, the solid content of described St/ba Soap-free Emulsion is 33.5%.
Preferably, the part by weight of described defoamer and described St/ba Soap-free Emulsion is 1:1000.
The present invention also provides the preparation method of above-mentioned St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: cement 100-200 part, sand 50-100 part, mica powder 20-50 part, water reducer 0.1-0.2 part, defoamer 0.01-0.06 part, St/ba Soap-free Emulsion 10-60 part and water 50-150 part are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Concrete, the normal curing described in S2 be maintenance 28 days under 20 ± 2 DEG C of environment with relative humidity more than 95%.
Compared to prior art, the preparation method of a kind of St/ba Soap-free Emulsion polymer concrete provided by the invention, has following beneficial effect:
1, this polymer concrete is with the mica powder of suitable proportioning and St/ba Soap-free Emulsion for insulativity filler, and using the sand of suitable proportioning as reinforcing filler, the concrete insulating property obtained and compressive strength are better than same polymer concrete greatly.
2, the rational proportion of each component, and the St/ba Soap-free Emulsion introduced, can make the aperture of polymer concrete sample internal voids be down to less than 100 μm, and decrease the free water of sample inside, thus improve its insulating property.
3, introduce properly mixed St/ba Soap-free Emulsion, the content not containing emulsifying agent or emulsifying agent is very low, better than the insulating property of polymer concrete of the benzene emulsion gained mixing other kinds.
In sum, excellent property of the present invention, raw material is simple and easy to get, easy construction, is applicable to large-scale commercial production; After a procedure, obtained polymer concrete not only has high insulating property, and has very excellent mechanical property, and future can have good development prospect.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, once can not limit protection scope of the present invention.
The method used in the present invention, if no special requirements, is ordinary method, and reagent used in the present invention if no special requirements, is commercially available prod.
Embodiment 1
The preparation method of St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: the St/ba Soap-free Emulsion 10 parts of cement 100 parts, 50 parts, river sand, mica powder 50 parts, poly carboxylic acid series water reducer 0.1 part, defoamer (DeformW-098) 0.1 part, solid content 33.5% and 90 parts, water are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Embodiment 2
The preparation method of St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: the St/ba Soap-free Emulsion 60 parts of cement 100 parts, 50 parts, river sand, mica powder 50 parts, poly carboxylic acid series water reducer 0.1 part, defoamer (DeformW-098) 0.06 part, solid content 33.5% and 70 parts, water are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Embodiment 3
The preparation method of St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: the St/ba Soap-free Emulsion 60 parts of cement 100 parts, 50 parts, river sand, mica powder 20 parts, poly carboxylic acid series water reducer 0.1 part, defoamer (DeformW-098) 0.06 part, solid content 33.5% and 55 parts, water are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Embodiment 4
The preparation method of St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: the St/ba Soap-free Emulsion 60 parts of cement 200 parts, 100 parts, river sand, mica powder 30 parts, poly carboxylic acid series water reducer 0.1 part, defoamer (DeformW-098) 0.06 part, solid content 48% and 110 parts, water are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Embodiment 5
The preparation method of St/ba Soap-free Emulsion polymer concrete, comprises the steps: that the parts by weight of all raw materials are all by same weight basis,
S1: the St/ba Soap-free Emulsion 60 parts of cement 100 parts, 100 parts, river sand, mica powder 40 parts, poly carboxylic acid series water reducer 0.1 part, defoamer (DeformW-098) 0.06 part, solid content 48% and 80 parts, water are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
Comparative example 1
Compared to embodiment 1, in comparative example 1 use benzene emulsion for conventional emulsion polymerization legal system standby, benzene emulsion solid content is 33.5%.Other conditions are identical with the condition of embodiment 1.
Comparative example 2
Compared to embodiment 2, in comparative example 2 use benzene emulsion for conventional emulsion polymerization legal system standby, benzene emulsion solid content is 33.5%.Other conditions are identical with the condition of embodiment 2.
Comparative example 3
Compared to embodiment 3, in comparative example 3 use benzene emulsion for conventional emulsion polymerization legal system standby, benzene emulsion solid content is 33.5%.Other conditions are identical with the condition of embodiment 3.
Comparative example 4
Compared to embodiment 4, the benzene emulsion used in comparative example 4 for conventional emulsion polymerization legal system standby, concrete adopt make a living and reach the S01-benzene emulsion of Chemical Manufacture, its solid content is 48%.Other conditions are identical with the condition of embodiment 4.
Comparative example 5
Compared to embodiment 5, the benzene emulsion used in comparative example 5 for conventional emulsion polymerization legal system standby, concrete adopt make a living and reach the S01-benzene emulsion of Chemical Manufacture, its solid content is 48%.Other conditions are identical with the condition of embodiment 5.
The performance of the polymer concrete obtained by embodiment 1 to 5 and comparative example 1 to 5 is tested, testing method and gained performance data as shown in the table:
Visible according to upper table, the St/ba Soap-free Emulsion polymer concrete dielectric strength using formula provided by the invention and method to produce is very high, has good insulating property, meanwhile, obtained concrete compressive strength is high, and above 2 all have practical value; Compared to the concrete mixing the benzene emulsion that conventional emulsion polymerization method is produced, the concrete mixing St/ba Soap-free Emulsion provided by the invention has higher dielectric strength, this means that St/ba Soap-free Emulsion polymer concrete insulativity prepared by the present invention is better.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a St/ba Soap-free Emulsion polymer concrete, is characterized in that, is made up of the raw material of following weight part: cement 100-200 part, sand 50-100 part, mica powder 20-50 part, water reducer 0.1-0.2 part, defoamer 0.01-0.06 part, St/ba Soap-free Emulsion 10-60 part, water 50-150 part.
2. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, described cement is ordinary Portland cement.
3. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, described sand is river sand.
4. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, the solid content of described St/ba Soap-free Emulsion is 30%-48%.
5. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 4, is characterized in that, the solid content of described St/ba Soap-free Emulsion is 33.5%.
6. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, described water reducer is poly carboxylic acid series water reducer.
7. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, described defoamer is DerformW-098.
8. a kind of St/ba Soap-free Emulsion polymer concrete according to claim 1, is characterized in that, the part by weight of described defoamer and described St/ba Soap-free Emulsion is 1:1000.
9. the preparation method of a kind of St/ba Soap-free Emulsion polymer concrete described in any one of claim 1 to 8, is characterized in that, comprise the steps:
The parts by weight of all raw materials all by same weight basis,
S1: cement 100-200 part, sand 50-100 part, mica powder 20-50 part, water reducer 0.1-0.2 part, defoamer 0.01-0.06 part, St/ba Soap-free Emulsion 10-60 part and water 50-150 part are added in stirrer and fully stirs, obtain the mixture that each raw material mixes;
S2: pour the mixture prepared in S1 in mould sample preparation, at room temperature leaves standstill 1 day after fully vibrating, form removal, takes out sample block, puts into concrete curing box and carry out normal curing;
S3: taken out from maintaining box by the sample block in S2, to be placed under room temperature and drying conditions maintenance 7 days, to obtain St/ba Soap-free Emulsion polymer concrete.
10. the preparation method of a kind of St/ba Soap-free Emulsion polymer concrete according to claim 9, is characterized in that, the normal curing described in S2 is maintenance 28 days under the environment of 20 ± 2 DEG C and relative humidity more than 95%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777016A (en) * | 2016-04-08 | 2016-07-20 | 湖北大学 | High-voltage-resistant power transmission pipeline material and preparation method thereof |
| CN105837122A (en) * | 2016-04-20 | 2016-08-10 | 武汉南瑞电力工程技术装备有限公司 | High-insulativity polymer concrete for transmission pipeline and preparation method thereof |
| CN106747121A (en) * | 2017-01-23 | 2017-05-31 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of closely knit polymer concrete of high-insulativity and preparation method and application |
| CN107721323A (en) * | 2017-11-24 | 2018-02-23 | 广东龙湖科技股份有限公司 | A kind of concrete for being highly resistant to organic solvent erosion |
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| CN104891900A (en) * | 2015-05-20 | 2015-09-09 | 中民筑友有限公司 | C35 low-gel-material self-compacting reinforced concrete and preparation method thereof |
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| CN104891900A (en) * | 2015-05-20 | 2015-09-09 | 中民筑友有限公司 | C35 low-gel-material self-compacting reinforced concrete and preparation method thereof |
Non-Patent Citations (1)
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| 刘刚: ""无皂苯丙乳液合成及其对水泥基材料性能影响的研究"", 《中国优秀硕士学位论文数据库 工程Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777016A (en) * | 2016-04-08 | 2016-07-20 | 湖北大学 | High-voltage-resistant power transmission pipeline material and preparation method thereof |
| CN105837122A (en) * | 2016-04-20 | 2016-08-10 | 武汉南瑞电力工程技术装备有限公司 | High-insulativity polymer concrete for transmission pipeline and preparation method thereof |
| CN105837122B (en) * | 2016-04-20 | 2021-04-06 | 武汉南瑞电力工程技术装备有限公司 | High-insulation polymer concrete for power transmission pipeline and preparation method thereof |
| CN106747121A (en) * | 2017-01-23 | 2017-05-31 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of closely knit polymer concrete of high-insulativity and preparation method and application |
| CN106747121B (en) * | 2017-01-23 | 2020-01-31 | 国网电力科学研究院武汉南瑞有限责任公司 | high-insulation dense polymer concrete and preparation method and application thereof |
| CN107721323A (en) * | 2017-11-24 | 2018-02-23 | 广东龙湖科技股份有限公司 | A kind of concrete for being highly resistant to organic solvent erosion |
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