CN103539387B - Production method of insulating brick containing plant straws - Google Patents
Production method of insulating brick containing plant straws Download PDFInfo
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- CN103539387B CN103539387B CN201310453362.1A CN201310453362A CN103539387B CN 103539387 B CN103539387 B CN 103539387B CN 201310453362 A CN201310453362 A CN 201310453362A CN 103539387 B CN103539387 B CN 103539387B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to a preparation method of an insulating brick containing plant straws. The preparation method is characterized in that the insulating brick is produced from the raw materials in parts by weight: 70-80 parts of the plant straws, 13-25 parts of magnesium hydroxide and 5-10 parts of isocyanate and comprises the steps: crushing the plant straws to obtain crushed plant straws with the fiber length of 5-10mm, drying the crushed plant straws until the moisture content is 8 percent according to the weight percentage, weighing the plant straws according to the parts by weight, adding the magnesium hydroxide and the isocyanate as a binder according to the parts by weight, carrying out mixing and burdening, then carrying out prepressing with the precompression of 500 tons, then carrying out compression molding with the die pressure of 1.2 kilotons, heating to 110 DEG C by virtue of a high-frequency electromagnetic induction method, and carrying out hot pressing for 3-6 minutes to form the insulating brick. According to the production method disclosed by the invention, with the plant straws as main raw materials, the produced insulating brick has a good fireproof performance without needing secondary insulation; in addition, the insulating brick is rapid in construction, has a favorable anti-seismic effect and has the shock strength according with the stipulations of a national standard in wall materials.
Description
Technical field
The present invention relates to the insulating brick technical field in material of construction, particularly a kind of preparation method containing plant straw insulating brick.
Background technology
The styrofoam of the many employings of insulating brick in existing material of construction based on polystyrene or be mixed with flyash, perlite etc. and form insulating brick.Styrofoam can only be used for exterior-wall heat insulation, can not be used for building main wall body by laying bricks or stones, and polystyrene is not fire-retardant, and therefore its use range is restricted.A lot of about being mixed with the written material forming insulating brick with flyash, perlite etc., in technical scheme such as disclosed in application for a patent for invention 200810000556.5 " self-thermal insulation material and insulating brick ", the weight ratio of self-thermal insulation material is: flyash: 32-61, perlite: 14-31, cement: 18-31, additive: 5-7.More preferably establish, the weight ratio of self-thermal insulation material is: flyash 61, perlite: 14, cement: 18, additive: 7.It can thus be appreciated that this self-thermal insulation material is based on flyash, and additive relates to multiple industrial chemicals.Application number be 200710144690.8 and the application documents of 201010511378.x disclose the preparation technology of straw insulating brick and the preparation method containing plant fiber composite wall body board, the auxiliary material fire resistance that these methods use is lower, and the binding agent used also not environmentally.
Summary of the invention
The object of this invention is to provide that a kind of fire resistance is good, the preparation method containing plant straw insulating brick of environmental protection.
The object of the present invention is achieved like this:
According to the preparation method containing plant straw insulating brick of the present invention, it is characterized in that, it is made up of the raw material of following weight parts proportioning:
Plant straw 70 ~ 80 parts, magnesium hydroxide 13 ~ 25 parts, isocyanic ester 5 ~ 10 parts,
Its preparation method: be the plant straw of 15% by weight percentage by water ratio, being ground into staple length is 5 ~ 10mm, dry, be 8% by weight percentage to water ratio, take plant straw by described weight part, add magnesium hydroxide and binding agent isocyanic ester by described weight part, carry out stirring, preparing burden, carry out precompressed again, its preload pressure is 500 tons, and then compression molding, its molding pressure is 1.2 kilotons, adopt high-frequency electromagnetic induction method, be heated to 110 DEG C, hot pressing 3 ~ 6 minutes is shaping.
According to the preparation method containing plant straw insulating brick of the present invention, it is characterized in that, it is made up of the raw material of following weight parts proportioning:
Plant straw 70 ~ 80 parts, magnesium hydroxide 16 ~ 20 parts, isocyanic ester 5 ~ 10 parts,
Its preparation method is same as above.
Of the present invention containing plant straw insulating brick, adopt the heating technique of high-frequency electromagnetic induction method, average heat-up time, ratio resistance type of heating shortens the time of 1/3, and also energy-conservation 1/3.Obtained insulating brick fire resistance is good, environmental protection.Density 600-800kg/m
3, mean compressive strength is greater than 15MPa, and resistance to impact shock meets the national standard about materials for wall and specifies.
Of the present invention containing plant straw insulating brick, there is following characteristics:
1) owing to adopting plant straw as main ingredient, cheap, that stock number is abundant plant straw can be utilized, solve the problem of environmental pollution that vast rural area burning straw brings simultaneously, reach i.e. environmental protection, but also the effect fully utilized;
2) because plant straw density is little, lightweight, because this reducing wall weight, being almost 1/5 of clay tile wall body weight, improve structural seismic capacity, there is good anti seismic efficiency;
3) owing to present invention employs isocyanic ester, there is good water resistance, and bulk hollow brick can be made into, constructability, raising heat-insulating property.
4) what adopt said components to make is splendid containing plant straw insulating brick heat insulation effect, without the need to carrying out secondary insulation on buildings, and convenient and quick construction.
5) owing to present invention employs magnesium hydroxide, product is made to improve link function between fire resistance and plant straw.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
What be made up of the raw material of following weight parts proportioning contains plant straw insulating brick:
Plant straw 70 parts, magnesium hydroxide 20 parts, isocyanic ester 10 parts,
Preparation method: be the plant straw of 15% by weight percentage by water ratio, being ground into staple length is 5 ~ 10mm, dry, be 8% by weight percentage to water ratio, take plant straw by described weight part, add magnesium hydroxide, binding agent isocyanic ester by described weight part, carry out stirring, preparing burden, carry out precompressed again, its preload pressure is 500 tons, and then compression molding, its molding pressure is 1.2 kilotons, adopt high-frequency electromagnetic induction method, be heated to 110 DEG C, hot pressing 4 ~ 5 minutes is shaping.
Embodiment 2
What be made up of the raw material of following weight parts proportioning contains plant straw insulating brick:
Plant straw 80 parts, magnesium hydroxide 15 parts, isocyanic ester 5 parts,
Preparation method: adopt high-frequency electromagnetic induction method, be heated to 110 DEG C, hot pressing 4 ~ 5 minutes is shaping, and all the other Methods and steps are with embodiment 1.
Preparation method is with embodiment 1.
Table: the feed composition of embodiment and performance index
Claims (2)
1., containing a preparation method for plant straw insulating brick, it is characterized in that, it is made up of the raw material of following weight parts proportioning:
Plant straw 75 parts, magnesium hydroxide 17 parts, isocyanic ester 8 parts,
Its preparation method: be the plant straw of 15% by weight percentage by water ratio, being ground into staple length is 5 ~ 10mm, dry, be 8% by weight percentage to water ratio, plant straw is taken by described weight part, magnesium hydroxide and binding agent isocyanic ester is added by described weight part, carry out stirring, preparing burden, then carry out precompressed, its preload pressure is 500 tons, and then compression molding, its molding pressure is 1.2 kilotons, adopts the heating technique of high-frequency electromagnetic induction method, is heated to 110 DEG C, hot pressing 3 ~ 6 minutes is shaping, makes the density of described insulating brick be 780kg/m
3, mean compressive strength is greater than 15Mpa.
2. the preparation method containing plant straw insulating brick according to claim 1, it is characterized in that, it is made up of the raw material of following weight parts proportioning:
Plant straw 80 parts, magnesium hydroxide 15 parts, isocyanic ester 5 parts,
Preparation method: be the plant straw of 15% by weight percentage by water ratio, being ground into staple length is 5 ~ 10mm, dry, be 8% by weight percentage to water ratio, plant straw is taken by described weight part, magnesium hydroxide and binding agent isocyanic ester is added by described weight part, carry out stirring, preparing burden, then carry out precompressed, its preload pressure is 500 tons, and then compression molding, its molding pressure is 1.2 kilotons, adopts the heating technique of high-frequency electromagnetic induction method, is heated to 110 DEG C, hot pressing 3 ~ 6 minutes is shaping, makes the density of described insulating brick be 720kg/m
3, mean compressive strength is greater than 15Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453362.1A CN103539387B (en) | 2013-09-29 | 2013-09-29 | Production method of insulating brick containing plant straws |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453362.1A CN103539387B (en) | 2013-09-29 | 2013-09-29 | Production method of insulating brick containing plant straws |
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| Publication Number | Publication Date |
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| CN103539387A CN103539387A (en) | 2014-01-29 |
| CN103539387B true CN103539387B (en) | 2015-07-22 |
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| CN201310453362.1A Active CN103539387B (en) | 2013-09-29 | 2013-09-29 | Production method of insulating brick containing plant straws |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106007497A (en) * | 2016-05-16 | 2016-10-12 | 南昌大学 | Straw and flyashheat-insulation wall material and manufacturing method for wall building blocks |
| CN106239713B (en) * | 2016-08-09 | 2018-10-09 | 宿州市威菱耐火材料有限责任公司 | A kind of preparation facilities of tapping hole refractory brick |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101168263A (en) * | 2007-11-28 | 2008-04-30 | 东北林业大学 | Method for manufacturing plant fibre composite wall plate |
| CN101337371A (en) * | 2008-08-15 | 2009-01-07 | 安徽康拜环保新材料装备有限公司 | Production method of plywood made by straw |
| CN101962272B (en) * | 2010-10-18 | 2013-04-17 | 福建农林大学 | Flame-retardant plant fiber construction heat-insulation wall material and preparation method thereof |
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