CN102173616B - High-resistance insulating cement - Google Patents
High-resistance insulating cement Download PDFInfo
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- CN102173616B CN102173616B CN 201010612274 CN201010612274A CN102173616B CN 102173616 B CN102173616 B CN 102173616B CN 201010612274 CN201010612274 CN 201010612274 CN 201010612274 A CN201010612274 A CN 201010612274A CN 102173616 B CN102173616 B CN 102173616B
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- aqueous epoxy
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions 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
- C04B28/04—Portland cements
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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses high-resistance insulating cement which is prepared from cement, pyrophyllite powder, water, waterborne epoxy resins and waterborne epoxy resin curing agents, wherein the mass ratio of cement to pyrophyllite powder is (50 to 80): (15 to 50); the total mass of water, waterborne epoxy resins and waterborne epoxy resin curing agents accounts for 30% to 45% of the total mass of cement and pyrophyllite powder; the ratio of the mass of water to the total mass of waterborne epoxy resins and waterborne epoxy resin curing agents is (0.4 to 8): 1; and the mass ratio of waterborne epoxy resins to waterborne epoxy resin curing agents is 4: (3 to 1). Compared with the sample of the existing pure cement, the volume resistivity and the compressive strength of the high-resistance insulating cement provided by the invention are both greatly improved.
Description
(1) technical field
The present invention relates to a kind of high-resistance insulating cement, belong to the building material industrial technology field.
(2) background technology
The tradition cement-base composite material mainly is for the building bearing material, the performance that is used to is mechanical property basically, yet the progress along with society, modern architecture has proposed new challenge to cement-base composite material, require cement-base composite material not only will possess basic weight-bearing function, also should have some specific function at aspects such as sound, light, electricity, magnetic, heat, in order to adapt to multi-functional and demand smart machine.
The Portland cement based composites neither belongs to isolator and does not also belong to good conductor, be between isolator and the good conductor, yet cement-base composite material has good insulativity usually under drying regime, has high resistivity, but the increase along with humidity, this insulating property can be significantly deteriorated, shows certain electroconductibility.
Current, general high resistance cement products is by adding the activated powder of some tools or some water-based organism are made.Disclose a kind of high insulating cement such as clear 59-19056, this cement is with flyash, and blast furnace slag and soluble silicon are main component, and adds ettringite 5-30%, reacts little or unresponsive insoluble silicon 10-50% and makes.Because the above-mentioned difference that waits cement composition needs the active powder of adding different, usually need to add in addition the powders such as flyash, slag, so that product technique in actual production process is relatively loaded down with trivial details, the application range of product is relatively narrow and small.
(3) summary of the invention
The technical problem to be solved in the present invention provides the cement of a kind of mechanical strength height, excellent insulation performance.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of high-resistance insulating cement, made by cement, pyrophyllite powder, water, aqueous epoxy resins and aqueous epoxy curing agent, the mass ratio of described cement and pyrophyllite powder is 50～80: 15～50, described water, aqueous epoxy resins and aqueous epoxy curing agent three total mass are 30～45% of cement and pyrophyllite powder total mass, the quality of described water is 0.4～8: 1 with the ratio of aqueous epoxy resins and aqueous epoxy curing agent total mass, and the mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4: 3～1.
Described high-resistance insulating cement prepares by the following method: take by weighing aqueous epoxy resins, epoxy curing agent and water by the quality proportioning, stir after the mixing, leave standstill slaking 20～30min, purpose is to make resin and solidifying agent primary solidification, joins in the cement and pyrophyllite powder that mixes again, and continues to mix, then casting, place 24～72h in room temperature, solidify the dry rear demoulding, namely get described high-resistance insulating cement.
The aqueous epoxy resins that the present invention uses can use the market milk liquid product, such as AB-EP-51 Resins, epoxy, SM662 Resins, epoxy or H1150 aqueous epoxy resins.
The epoxy curing agent that the present invention uses as aliphatics amine solidifying agent (such as quadrol, hexanediamine, modified amine etc.) or aromatic diamines solidifying agent (such as diaminodiphenylmethane (DDM) etc.), over-all properties in view of the cement of producing, the preferred aliphat amine curing agent, can use the commercial goods, such as AB-HGF waterborne curing agent, aqueous epoxy curing agent EA-31, aqueous epoxy curing agent 5160 etc.
The pyrophyllite powder that the present invention uses is an eka-silicon aluminium silicate mineral powder, and powder raw material derives from agalmatolite mining area, Qingtian County of Zhejiang area.The particle diameter of described pyrophyllite powder is preferably the 600-800 order, can obtain by the following method: take any rigidity abrading-ball as ball-milling medium, agalmatolite is continued ball milling 1～2h with 120～200r/min in the ball grinding stirring machine, making powder granularity is 600～800 purpose pyrophyllite powders.
The cement that the present invention uses is ordinary Portland cement, can use the commercial goods, such as 325# cement, 425# cement etc.
Further, the quality of the preferred described water of the present invention is 0.4～4: 1 with the ratio of aqueous epoxy resins and aqueous epoxy curing agent total mass.
Further, preferred version 1 of the present invention is: described high-resistance insulating cement is made by the raw material of following mass fraction:
50 parts of ordinary Portland cements
25 parts of pyrophyllite powders
10 parts in water
21 parts of aqueous epoxy resins and aqueous epoxy curing agents
The particle diameter of described pyrophyllite powder is 700 orders, and the mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4: 3.
Further, preferred version 2 of the present invention is: described high-resistance insulating cement is made by the raw material of following quality proportioning:
65 parts of ordinary Portland cements
35 parts of pyrophyllite powders
28 parts in water
14 parts of aqueous epoxy resins and aqueous epoxy curing agents
The particle diameter of described pyrophyllite powder is 700 orders; The mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4: 3.
Further, preferred version 3 of the present invention is: described high-resistance insulating cement is made by the raw material of following quality proportioning:
75 parts of ordinary Portland cements
25 parts of pyrophyllite powders
28 parts in water
14 parts of aqueous epoxy resins and aqueous epoxy curing agents
Described pyrophyllite powder is 700 orders; The mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4: 3.
Compared with prior art, beneficial effect of the present invention is: high-resistance insulating cement preparation process of the present invention is simple, used starting material wide material sources, and cheap, equipment investment is few, very easily promotes the use of; The high-resistance insulating cement that makes is compared with former plain cement sample, and volume specific resistance and ultimate compression strength have had largely raising.
(4) description of drawings
Fig. 1 is the preparation were established figure of high-resistance insulating cement of the present invention.
(5) embodiment
The below further specifies technical scheme of the present invention with specific embodiment, but protection scope of the present invention is not limited to this:
Embodiment 1
Prepare high resistance cement according to following mass ratio: measure 12 parts of (mass fractions, lower with) after the water of the AB-EP-51 Resins, epoxy of Zhejiang Anbang New Material Development Co., Ltd., the AB-HGF solidifying agent of 9 parts of Zhejiang Anbang New Material Development Co., Ltd. and 10 parts stirs, place 30min, 325 cement and Qingtian County of Zhejiang area 25 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 50 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 21.08 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 14.09MPa, 28 days ultimate compression strength is 18.48MPa.
Embodiment 2
Prepare high resistance cement according to following mass ratio: after the water of measuring the AB-HGF solidifying agent of the AB-EP-51 Resins, epoxy of 8 parts of Zhejiang Anbang New Material Development Co., Ltd., 6 parts of Zhejiang Anbang New Material Development Co., Ltd. and 28 parts stirs, place 30min, 325 cement and Qingtian County of Zhejiang area 35 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 65 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 35.14 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 13.11MPa, 28 days ultimate compression strength is 29.32MPa.
Embodiment 3
Prepare high resistance cement according to following mass ratio: after the water of measuring the AB-HGF solidifying agent of the AB-EP-51 Resins, epoxy of 8 parts of Zhejiang Anbang New Material Development Co., Ltd., 6 parts of Zhejiang Anbang New Material Development Co., Ltd. and 28 parts stirs, place 30min, 325 cement and Qingtian County of Zhejiang area 25 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 75 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 51.27 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 10.73MPa, 28 days ultimate compression strength is 10.25MPa.
Embodiment 4
Prepare high resistance cement according to following mass ratio: after the water of measuring the AB-HGF solidifying agent of the AB-EP-51 Resins, epoxy of 8 parts of Zhejiang Anbang New Material Development Co., Ltd., 6 parts of Zhejiang Anbang New Material Development Co., Ltd. and 20 parts stirs, place 30min, 325 cement and Qingtian County of Zhejiang area 40 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 60 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 43.09 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 6.93MPa, 28 days ultimate compression strength is 10.13MPa.
Embodiment 5
Prepare high resistance cement according to following mass ratio: after the water of measuring the AB-HGF solidifying agent of the AB-EP-51 Resins, epoxy of 12 parts of Zhejiang Anbang New Material Development Co., Ltd., 9 parts of Zhejiang Anbang New Material Development Co., Ltd. and 10 parts stirs, place 30min, 325 cement and Qingtian County of Zhejiang area 50 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 50 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 32.41 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 7.47MPa, 28 days ultimate compression strength is 15.4MPa.
Embodiment 6
Prepare high resistance cement according to following mass ratio: the AB-EP-51 Resins, epoxy of measuring 8 parts of Zhejiang Anbang New Material Development Co., Ltd., after the AB-HGF solidifying agent of 6 parts of Zhejiang Anbang New Material Development Co., Ltd. and 28 parts water stir, place 30min, 325 cement and Qingtian County of Zhejiang area 30 parts of the powders of agalmatolite (particle diameter 700 orders) that add again 70 parts of Hangzhou Yun Feng Cement Co., Ltds, continue to mix, then casting, at room temperature place 24h, solidify the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned high resistance cement that makes is: volume resistivity was 40.32 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 7.13MPa, 28 days ultimate compression strength is 11.39MPa.
The comparative example 1
Prepare plain cement control group sample according to following massfraction: 100 parts of cement, after stirring, add again 36 parts water of cement consumption, continue to mix, then casting is at room temperature placed 24h, solidifies the dry rear demoulding.Sample indoor place respectively 7 days and 28 days after test volume resistivity and ultimate compression strength.
The performance test results of the above-mentioned plain cement that makes is: volume resistivity was 4.13 * 10 in 28 days
8Ω cm, 7 days ultimate compression strength is 5.34MPa, 28 days ultimate compression strength is 6.48MPa.
As can be seen from the above embodiments, two important indicators of volume specific resistance and ultimate compression strength of the high resistance cement of the present invention's preparation: wherein volume specific resistance is compared with former plain cement sample, has had largely and has improved, and can keep stable; Ultimate compression strength is compared with former plain cement sample, has also had largely to improve.The content of epoxy resin that wherein adds is few, and the agalmatolite powder is with low cost, also can improve preferably the electrical property of cement, and preparation technology is simple, and the feasibility of industrialization is stronger.
Claims (6)
1. high-resistance insulating cement, it is characterized in that described high-resistance insulating cement made by cement, pyrophyllite powder, water, aqueous epoxy resins and aqueous epoxy curing agent, the mass ratio of raw material cement and pyrophyllite powder is 50～80:15～50, described water and aqueous epoxy resins and aqueous epoxy curing agent three total mass are 30～45% of cement and pyrophyllite powder total mass, the quality of described water is 0.4～8:1 with the ratio of the total mass of aqueous epoxy resins and aqueous epoxy curing agent, and the mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4:3～1; Described aqueous epoxy resins is AB-EP-51 Resins, epoxy, SM662 Resins, epoxy or H1150 aqueous epoxy resins; Described aqueous epoxy curing agent is aliphatics amine solidifying agent, and described aliphatics amine solidifying agent is AB-HGF waterborne curing agent, aqueous epoxy curing agent EA-31 or aqueous epoxy curing agent 5160;
Described high-resistance insulating cement prepares by the following method: take by weighing aqueous epoxy resins, aqueous epoxy curing agent and water by the quality proportioning, stir after the mixing, leave standstill slaking 20～30min, join again in the cement and pyrophyllite powder that mixes, continue to mix, then casting is placed 24～72h in room temperature, solidify the dry rear demoulding, namely get described high-resistance insulating cement.
2. high-resistance insulating cement as claimed in claim 1, the particle diameter that it is characterized in that described pyrophyllite powder is the 600-800 order.
3. high-resistance insulating cement as claimed in claim 1 is characterized in that described cement is ordinary Portland cement.
4. high-resistance insulating cement as claimed in claim 1 is characterized in that described high-resistance insulating cement made by the raw material of following mass fraction:
50 parts of ordinary Portland cements
25 parts of pyrophyllite powders
10 parts in water
21 parts of aqueous epoxy resins and aqueous epoxy curing agents
The particle diameter of described pyrophyllite powder is 700 orders; The mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4:3.
5. high-resistance insulating cement as claimed in claim 1 is characterized in that described high-resistance insulating cement made by the raw material of following quality proportioning:
65 parts of ordinary Portland cements
35 parts of pyrophyllite powders
28 parts in water
14 parts of aqueous epoxy resins and aqueous epoxy curing agents
The particle diameter of described pyrophyllite powder is 700 orders; The mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4:3.
6. high-resistance insulating cement as claimed in claim 1 is characterized in that described high-resistance insulating cement made by the raw material of following quality proportioning:
75 parts of ordinary Portland cements
25 parts of pyrophyllite powders
28 parts in water
14 parts of aqueous epoxy resins and aqueous epoxy curing agents
Described pyrophyllite powder is 700 orders; The mass ratio of described aqueous epoxy resins and aqueous epoxy curing agent is 4:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010612274 CN102173616B (en) | 2010-12-30 | 2010-12-30 | High-resistance insulating cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010612274 CN102173616B (en) | 2010-12-30 | 2010-12-30 | High-resistance insulating cement |
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| Publication Number | Publication Date |
|---|---|
| CN102173616A CN102173616A (en) | 2011-09-07 |
| CN102173616B true CN102173616B (en) | 2013-01-16 |
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| CN 201010612274 Active CN102173616B (en) | 2010-12-30 | 2010-12-30 | High-resistance insulating cement |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110372234A (en) * | 2018-04-13 | 2019-10-25 | 淮安市水泥厂有限公司 | Industrial residue epoxy resin powder is used as the processing method of cement ingredient |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055531A (en) * | 1991-04-06 | 1991-10-23 | 武汉工业大学 | High strength composite gelatinizing material |
| CN101125749A (en) * | 2007-08-01 | 2008-02-20 | 深圳大学 | Hydraulicity modulation aluminophosphate color cement |
| CN101391899A (en) * | 2008-10-24 | 2009-03-25 | 浙江锦诚耐火材料有限公司 | Pyrophyllite alkali resistant and refractory castable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527881A (en) * | 1978-08-22 | 1980-02-28 | Subaankaa Mukaaji | Refractory insulator |
| US6893992B2 (en) * | 2003-02-07 | 2005-05-17 | Allied Mineral Products, Inc | Crack-resistant insulating dry refractory |
-
2010
- 2010-12-30 CN CN 201010612274 patent/CN102173616B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055531A (en) * | 1991-04-06 | 1991-10-23 | 武汉工业大学 | High strength composite gelatinizing material |
| CN101125749A (en) * | 2007-08-01 | 2008-02-20 | 深圳大学 | Hydraulicity modulation aluminophosphate color cement |
| CN101391899A (en) * | 2008-10-24 | 2009-03-25 | 浙江锦诚耐火材料有限公司 | Pyrophyllite alkali resistant and refractory castable |
Non-Patent Citations (1)
| Title |
|---|
| JP昭55-27881A 1980.02.28 |
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