CN104130010B - A kind of method preparing colorful cover-coat enamel GRC decorative building material - Google Patents

A kind of method preparing colorful cover-coat enamel GRC decorative building material Download PDF

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Publication number
CN104130010B
CN104130010B CN201410410729.6A CN201410410729A CN104130010B CN 104130010 B CN104130010 B CN 104130010B CN 201410410729 A CN201410410729 A CN 201410410729A CN 104130010 B CN104130010 B CN 104130010B
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grc
glaze
coat
colorful cover
cover
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CN104130010A (en
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熊吉如
张敦谱
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Anhui Beilida Housing Industry Technology Co. Ltd.
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NANJING BEILIDA NEW MATERIAL SYSTEM ENGINEERING Co Ltd
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Abstract

The present invention discloses a kind of method preparing colorful cover-coat enamel GRC decorative building material, comprises the preparation of (a) glaze: after glass powder, distilled water, binding agent and mineral dye being mixed, ball milling sieves; B glaze is coated on GRC matrix surface by (), add thermosetting middle layer; C glaze is coated on interlayer surfaces by (), after repeating 3 ~ 5 times, add the colorful cover coat of thermosetting, namely obtains colorful cover-coat enamel GRC decorative building material; Colorful cover-coat enamel of the present invention has better mechanical stability, ageing-resistant, resistance to chemical corrosion than traditional organic radical coating; Fine and close cover coat can prevent again liquid and gas-permeable from entering GRC surface; Colorful cover coat has abundant decorative effect; Present invention reduces the damage of overall heating to GRC intrinsic performance, can save energy, reduce production cost, be beneficial to large-scale production.

Description

A kind of method preparing colorful cover-coat enamel GRC decorative building material
Technical field
The present invention relates to GRC decorative building material field, particularly a kind of method preparing colorful cover-coat enamel GRC decorative building material.
Background technology
Glass fiber reinforced cement (GRC) is with its high-strength light, decorative effect is given prominence to, be easy to build the characteristics such as polymorphic structure, application in building curtain wall finishing material obtains a very wide range of concern, meet the application demand of modern architecture exterior wall, in the production of such material, general selection cement is as matrix material, owing to inevitably forming many cavities and gap during hydrated cementitious, make rainwater etc. can infilter GRC inside, many destructions are produced to material, therefore in producing, GRC surface needs decoration and the protection of carrying out surface layer, to protect GRC, and give material specific function.Current common method is as protective facing at GRC surface spraying organic coating, as waterproofing agent of organosilicon, polypropylene emulsion, epoxy resin latex and organic colo(u)r coating, but organic coating easily occurs aging, degrade under the effect of long-term solar ultraviolet, coating is come off, fade etc. affects and uses and disadvantageous effect attractive in appearance, constrains the Long-Term Properties of GRC decorative building material.
Glaze is normally melted in the thin glass state material of the one deck on ceramic surface, product surface is made both to have had the mechanical property having withstand voltage, wear-resisting and resistance to erosion, there is again weathering resistance length, resistance to chemical attack, resistant to elevated temperatures chemical stability, while its compact surfaces formed can prevent again liquid and gas-permeable from entering product surface, glaze has again distinctive decorative effect, smooth surface and glossiness is high, by adding inorganic colourant, abundant color can be formed, beautiful in colour, pattern enriches, and plays good decoration function.Forming cover coat at cementitious material surface is a kind of method of decorating cement material, not only gives the technical characteristic of cement material uniqueness, and gives cement material special decorative effect.Japanese Unexamined Patent Publication No. 61-149310, clear 62-12198, Chinese patent CN1043923A, Chinese patent CN90108947.8 describe the manufacture method of glazed cement product, its preparation process comprises carries out the thermal treatment of 650 ~ 900 DEG C to form glaze layer to glazing cement products, and to the cement products rehydration maintenance after thermal treatment, obtain glazed cement product, but, adopt normative heat treatment technology to need to carry out entirety heating to cement products, the cement performance caused damage is larger; Although rehydration maintenance can improve the intensity of cement, cement matrix expands when maintenance and may form larger impact to glaze layer, thus have impact on the characteristic of glaze layer, at present, this area is not a kind of with under the prerequisite significantly not reducing cement performance, can form the relevant report of the method for continuous, complete, colorful cover coat at cementitious material surface.
Summary of the invention
The present invention seeks to for above-mentioned weak point, a kind of method preparing colorful cover-coat enamel GRC decorative building material is provided, by surperficial selective thermal treatment technology, optionally heat fusing is carried out to pretreated glazing GRC surface, make heating zone glaze generation rapid melting, colorful cover coat is formed on GRC surface through cooling and anneal, thus avoiding the damage of overall heating to material property, the present invention is achieved in that
Prepare a method for colorful cover-coat enamel GRC decorative building material, it is characterized in that, described colorful cover-coat enamel GRC decorative building material
Comprise GRC matrix, middle layer and colorful cover coat, concrete preparation method is as follows:
A) glaze preparation:
Be that after the glass powder of 100:50-200:0.05-0.2:1-5, distilled water, binding agent and mineral dye mix, mechanical ball milling 12 ~ 48h, crosses 200 ~ 600 mesh sieves by the mixture slurry of ball milling successively by mass ratio, obtain glaze;
B) middle layer preparation:
The glaze obtained by step a by the mode spraying, brush or drench glaze is evenly coated on GRC matrix surface and forms glaze layer, at 60 ~ 80 DEG C after dry 30 ~ 60min, then GRC building materials is preheated to 300 ~ 500 in a usual manner oc, to the glaze layer of GRC matrix surface with selective thermal treatment technology rapid heating 5-10s, glaze layer forms middle layer at GRC matrix surface;
C) interlayer surfaces that the glaze obtained by step a by the mode spraying, brush or drench glaze is evenly coated on step b acquisition forms glaze layer, drying 30 ~ 60min at 60 ~ 80 DEG C; After repeating 3 ~ 5 times, GRC building materials are preheated to 300 ~ 500 oc, to the glaze layer of interlayer surfaces with selective thermal treatment technology rapid heating 10-300s, then in 300 ~ 500 oc anneals after 60 ~ 120min, and but to room temperature, glaze layer forms colorful cover coat in interlayer surfaces, namely obtains colorful cover-coat enamel GRC decorative building material.
In the present invention, preferably, described selective thermal treatment technology is by electrically heated or flame heating.
In the present invention, preferably, described electrically heated is silicon molybdenum or globars heating, and Heating temperature is 1000 ~ 1500 oc; Described flame is heated to be the one in oxyhydrogen flame, acetylene oxygen flame or methane oxygen flame, and flame temperature is 1500 ~ 2500 oc.
In the present invention, preferably, described glass powder is the one in silicate, borosilicate or plumbite.
In the present invention, preferably, described binding agent is the one in water glass, Sudan Gum-arabic, polyvinyl alcohol or Mierocrystalline cellulose.
In the present invention, preferably, described mineral dye is the one in cobalt chloride, iron(ic) chloride, copper oxide, Cadmium Sulfide, Manganous chloride tetrahydrate, antimony sulfide.
In the present invention, preferably, described intermediate layer thickness is 5 ~ 50 μm, and described colorful cover coat thickness is 0.1 ~ 1mm.
Beneficial effect of the present invention is:
(1) the colorful cover coat of GRC building material surface of the present invention has better mechanical stability, ageing-resistant, resistance to chemical corrosion than traditional organic radical coating; Fine and close colorful cover coat can prevent again liquid and gas-permeable from entering GRC building material surface.
(2) colorful cover coat gives GRC goods special decorative effect, smooth surface and glossiness is high, and by adding mineral dye, can form abundant color, beautiful in colour, pattern enriches, and plays good decoration function.
(3) preparation method provided by the invention only carries out selective thermal process to GRC building material surface; make surperficial glaze Flashmelt; complete, continuous, flawless cover coat is obtained after cooling, annealing; thus reduce the damage of overall heating to GRC intrinsic performance; simultaneously can save energy, reduce production cost, be beneficial to large-scale production.
Accompanying drawing explanation
Fig. 1 is colorful cover-coat enamel GRC decorative building material structural representation by the embodiment of the present invention is obtained;
In figure: 1, GRC matrix, 2, middle layer, 3, colorful cover coat.
Embodiment
Below by way of specific embodiment, the present invention will be further described.
embodiment 1:
(1) weighing 50g silicate glass powder is scattered in 50g distilled water, and add 0.025g water glass suspension agent and 0.5g cobalt chloride tinting material, above powder mixed and carries out mechanical ball milling 12h, after mixture slurry being crossed 400 mesh sieves, obtaining suspending stabilized, finely dispersed glaze.
(2) glaze obtained is formed the uniform glaze layer of one deck by the mode of spraying on the surface of GRC matrix, and be placed in 60 DEG C of dry 30min, dried GRC building materials are preheated to 400 DEG C, GRC matrix surface is evenly ejected into the oxyhydrogen flame of flame temperature 1500 DEG C, the residence time is 10s, make glaze layer rapid melting and be combined with GRC matrix phase, obtaining about 10 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of spraying is evenly coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 3 times, obtain uniform glaze layer, dried GRC building materials are preheated to 400 DEG C, the oxyhydrogen flame of flame temperature 1500 DEG C is evenly ejected into interlayer surfaces glaze layer, and standing hold time is 10s, makes the glaze on surface that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 60min that anneals under 400 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 0.1mm in interlayer surfaces, namely obtains sky blue cover-coat enamel GRC decorative building material.
embodiment 2:
(1) weighing 50g borosilicate glass powder is scattered in 100g distilled water, and add 0.05g polyvinyl alcohol and 1.0g iron(ic) chloride, above powder mixed and carries out mechanical ball milling 24h, after mixture slurry being crossed 600 mesh sieves, obtaining suspending stabilized, finely dispersed glaze.
(2) glaze obtained is formed the uniform glaze layer of one deck by the mode of brushing on the surface of GRC matrix, and be placed in 80 DEG C of dry 30min, dried GRC building materials are preheated to 500 DEG C, GRC matrix surface is ejected into the acetylene oxygen even flame of flame temperature 2000 DEG C, the residence time is 5s, make glaze rapid melting and be combined with GRC matrix phase, obtaining about 20 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of brushing evenly is coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 5 times, uniform glaze layer is formed in interlayer surfaces, dried GRC goods are preheated to 500 DEG C, the acetylene oxygen even flame of flame temperature 2000oC is ejected into the glaze layer of interlayer surfaces, standing hold time is 50s, makes the glaze on surface that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 90min that anneals under 500 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 1mm in interlayer surfaces, obtains brown cover-coat enamel GRC decorative building material.
embodiment 3:
(1) weighing 50g lead silicate glass powder is scattered in 25g distilled water, and add 0.1g Sudan Gum-arabic suspension agent and 2.5g copper oxide tinting material, above powder mixed and carries out mechanical ball milling 48h, after mixture slurry being crossed 200 mesh sieves, obtaining suspending stabilized, finely dispersed glaze.
(2) glaze obtained is formed the uniform glaze of one deck by the mode of drenching glaze on the surface of GRC matrix, and be placed in 70 DEG C of dry 40min, dried GRC building materials are preheated to 300 DEG C, the globars of Heating temperature 1000oC is carried out surface heating to the glaze of GRC matrix surface, the residence time is 7s, make glaze rapid melting and be combined with GRC matrix phase, obtaining about 30 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of drenching glaze is evenly coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 5 times, obtain uniform glaze layer, dried GRC goods are preheated to 300 DEG C, the globars of Heating temperature 1000 DEG C is carried out surface heating to the glaze of interlayer surfaces, and standing hold time is 100s, makes the glaze on surface that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 120min that anneals under 300 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 0.8mm in interlayer surfaces, obtains Victoria Green WPB cover-coat enamel GRC decorative building material.
embodiment 4:
(1) weighing 50g lead silicate glass powder is scattered in 100g distilled water, and add 0.1g Sudan Gum-arabic suspension agent and 2.0g Cadmium Sulfide, above powder mixed and carries out mechanical ball milling 48h, after mixture slurry being crossed 400 mesh sieves, obtaining suspending stabilized, finely dispersed glaze.
(2) glaze obtained is formed the uniform glaze of one deck by the mode of spraying on the surface of GRC matrix, and be placed in 60 DEG C of dry 60min, dried GRC building materials are preheated to 400 DEG C, the Si-Mo rod of Heating temperature 1500 DEG C is carried out surface heating to sample, the residence time is 8s, make glaze rapid melting and be combined with GRC matrix phase, obtaining about 10 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of spraying is evenly coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 3 times, obtain uniform glaze layer, dried GRC building materials are preheated to 400 DEG C, the Si-Mo rod of Heating temperature 1500 DEG C is carried out surface heating to the glaze of interlayer surfaces, and standing hold time is 300s, makes the glaze on surface that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 90min that anneals under 400 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 0.4mm in interlayer surfaces, obtains orange-yellow cover-coat enamel GRC decorative building material.
embodiment 5:
(1) weighing 50g silicate glass powder is scattered in 100g distilled water, and add 0.025g cellulosic suspending agent and 1.5g Manganous chloride tetrahydrate, above powder mixed and carries out mechanical ball milling 24h, after mixture slurry being crossed 400 mesh sieves, obtaining suspending stabilized, finely dispersed glaze.
(2) glaze obtained is formed the uniform glaze of one deck by the mode of spraying on the surface of GRC matrix, and be placed in 60 DEG C of dry 60min, dried GRC building materials are preheated to 400 DEG C, the methane oxygen even flame of flame temperature 2500 DEG C is ejected into GRC matrix surface, the residence time is 9s, make glaze rapid melting and be combined with GRC matrix phase, obtaining about 5 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of spraying is evenly coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 5 times, obtain uniform glaze layer, dried GRC building materials are preheated to 400 DEG C, the methane oxygen even flame of flame temperature 2500 DEG C is sprayed the glaze layer of interlayer surfaces, standing hold time is 100s, makes the glaze on surface that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 120min that anneals under 400 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 0.8mm in interlayer surfaces, obtains intense violet color cover-coat enamel GRC decorative building material.
embodiment 6:
(1) weigh 50g silicate glass powder to be scattered in 80g distilled water, and add 0.03g Mierocrystalline cellulose and 2g antimony sulfide, above powder is mixed and carries out mechanical ball milling 36h.Suspending stabilized, finely dispersed glaze is obtained after mixture slurry being crossed 300 mesh sieves.
(2) glaze obtained is formed the uniform glaze of one deck by the mode of brushing on the surface of GRC matrix, and be placed in 70 DEG C of dry 50min, dried GRC building materials are preheated to 400 DEG C, the Si-Mo rod of Heating temperature 1200 DEG C is carried out surface heating to sample, the residence time is 6s, make glaze rapid melting and be combined with GRC matrix phase, obtaining about 50 μm of thick middle layers.
(3) glaze slurry step 1 obtained by the mode of brushing evenly is coated on the interlayer surfaces formation glaze layer that step 2 obtains, dry 30 ~ 60min at 60 ~ 80 DEG C, this glazing process circulates 4 times, obtain uniform glaze layer, dried GRC building materials are preheated to 400 DEG C, the Si-Mo rod of Heating temperature 1200 DEG C is carried out surface heating to glaze, and standing hold time is 200s, makes the glaze of interlayer surfaces that optionally Flashmelt occur; After high temperature heat source leaves melting zone, melten glass cooling also, after the 120min that anneals under 300 DEG C of conditions, cools to room temperature with the furnace, and glaze layer forms the thick colorful cover coat of about 0.7mm in interlayer surfaces, obtains intense violet color cover-coat enamel GRC decorative building material.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.

Claims (6)

1. prepare a method for colorful cover-coat enamel GRC decorative building material, it is characterized in that, described colorful cover-coat enamel GRC decorative building material comprises GRC matrix, middle layer and colorful cover coat, and concrete preparation method is as follows:
A) glaze preparation: be that after the glass powder of 100:50-200:0.05-0.2:1-5, distilled water, binding agent and mineral dye mix, mechanical ball milling 12 ~ 48h, crosses 200 ~ 600 mesh sieves by the mixture slurry of ball milling, namely obtain glaze successively by mass ratio;
B) middle layer preparation: the glaze that step a obtains evenly is coated on GRC matrix surface and forms glaze layer, at 60 ~ 80 DEG C after dry 30 ~ 60min, again building materials are preheated to 300 ~ 500 DEG C in a usual manner, heat rapid heating 5-10s to the glaze layer of GRC matrix surface with electrically heated or flame, glaze layer forms middle layer at GRC matrix surface;
C) glaze that step a obtains evenly is coated on the interlayer surfaces formation glaze layer that step b obtains, dry 30 ~ 60min at 60 ~ 80 DEG C; After repeating 3 ~ 5 times, building materials are preheated to 300 ~ 500 DEG C, with electrically heated or flame, rapid heating 10-300s is heated to the glaze layer of interlayer surfaces, again after 300 ~ 500 DEG C of annealing 60 ~ 120min, be cooled to room temperature, glaze layer forms colorful cover coat in interlayer surfaces, namely obtains colorful cover-coat enamel GRC decorative building material.
2. prepare the method for colorful cover-coat enamel GRC decorative building material according to claim 1, it is characterized in that, described electrically heated is silicon molybdenum or globars heating, and Heating temperature is 1000 ~ 1500 DEG C; Described flame is heated to be the one in oxyhydrogen flame, acetylene oxygen flame or methane oxygen flame, and flame temperature is 1500 ~ 2500 DEG C.
3. prepare the method for colorful cover-coat enamel GRC decorative building material according to claim 1, it is characterized in that, described glass powder is the one in silicate, borosilicate or plumbite.
4. according to the method preparing colorful cover-coat enamel GRC decorative building material described in claim 1, it is characterized in that, described binding agent is the one in water glass, Sudan Gum-arabic, polyvinyl alcohol or Mierocrystalline cellulose.
5. according to the method preparing colorful cover-coat enamel GRC decorative building material described in claim 1, it is characterized in that, described mineral dye is the one in cobalt chloride, iron(ic) chloride, copper oxide, Cadmium Sulfide, Manganous chloride tetrahydrate, antimony sulfide.
6. according to the method for the described preparation of one of claim 1-5 colorful cover-coat enamel GRC decorative building material, it is characterized in that, described intermediate layer thickness is 5 ~ 50 μm, and described colorful cover coat thickness is 0.1 ~ 1mm.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061211A (en) * 1990-11-08 1992-05-20 清华大学 The manufacture method of glazed cement product
CN1109804A (en) * 1993-11-13 1995-10-11 辛笑 Glaze hot-spraying technique for building
CN1133273A (en) * 1995-04-10 1996-10-16 金子文 Enamel glazing and sintering

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536974B2 (en) * 1973-11-02 1978-03-13
JPS57100991A (en) * 1980-12-11 1982-06-23 Kubota Ltd Manufacture of enameled cement products
JPH01234382A (en) * 1988-03-15 1989-09-19 Natl House Ind Co Ltd Glazed concrete panel
JPH06184731A (en) * 1992-12-17 1994-07-05 Mitsui Toatsu Chem Inc Hard material having excellent design characteristic

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061211A (en) * 1990-11-08 1992-05-20 清华大学 The manufacture method of glazed cement product
CN1109804A (en) * 1993-11-13 1995-10-11 辛笑 Glaze hot-spraying technique for building
CN1133273A (en) * 1995-04-10 1996-10-16 金子文 Enamel glazing and sintering

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