Summary of the invention
The objective of the invention is by adopting soluble fibre to replace manufacture of materials soluble fibre acoustical boards such as traditional asbestos, rock wool, mineral wool, expanded perlite, vermiculite, because soluble fibre has enough solubility in human body fluid, the time of staying of fiber in human body can be shortened, fiber is reduced to the infringement of human body minimum, thereby make the soluble fibre plate become the product that does not harm human body.
The technical solution used in the present invention is: develop a kind of inorganic silicate fiber sound absorption plate that dissolves in human body fluid, it is characterized in that this acoustical board predominant quantity percentage composition is:
Soluble fibre 30~60%
Inorganic bonding agent 10~20%
Organic bond 3~5%
Filler 10~40%
Other materials 3~9%.
The above-mentioned inorganic silicate fiber sound absorption plate that dissolves in human body fluid, soluble fibre wherein is the inorganic silicate fiber that dissolves in human body fluid, the weight percent of this fiber consists of:
SiO
2 56~85%
CaO+MgO 11~40%
B
2O
3 1~2%
Al
2O
3 0~1%
Fe
2O
3 0~0.5%
Na
2O+K
2O 0~0.5%。
Above-mentioned inorganic bonding agent is silicon dioxide gel, alumina sol, silicate of soda and/or aluminum sulfate; Above-mentioned organic bond is starch, polyvinyl alcohol, carboxymethyl cellulose, cassava and/or acorn nut powder; Above-mentioned filler is clay, kieselguhr and/or expanded perlite;
Above-mentioned other materials is reinforcing fibre, anti-blushing agent and anticorrisive agent; Wherein: reinforcing fibre is string and/or short glass fiber; Anti-blushing agent is that solid paraffin and/or rosin acid are received; Anticorrisive agent is boric acid, sodium pentachlorophenate and/or bisnaphthol.
A kind of method for making that dissolves in the inorganic silicate fiber sound absorption plate of human body fluid, it is characterized in that soluble fibre is material of main part and granulation, the binding material that adds proportional quantity is joined slurry slurrying, operation such as cuts through moulding, drying, surfacing cutting, embossing, essence and processes;
The step of preparation method is as follows:
(1) fiber granulation: with the soluble fibre granulation, the granularity of granulated wool is 5~20mm, and its slag ball content is 0~5%;
(2) join slurry slurrying: granulated wool and binding material are mixed in required ratio, be stirred to slurry and be suspension, the cotton pulp ratio is≤10%;
(3) moulding: be molded on the fourdrinier and carry out, comprise approach flow, vacuum suction filter dehydration, suction press dehydration and liquid drugs injection cutting part;
(4) drying: the wet mat moisture content is 100~120%, dry 50~150min between 100~350 ℃;
(5) cutting, facing: machine cuts becomes slab, the surface plane planing, and surperficial sprayed coating,
(6) redrying: through the slab of surface spraying, at 100~120 ℃, dry 1~15min;
(7) embossing, machine cuts become accurate finished size, promptly.
The quality index of soluble fibre acoustical board of the present invention is as follows:
Bulk density: 220-600kg/m
3
Flexural strength: 0.7-1.0MPa
Moisture content: 0~3%
Flammable: the A level is not fired
Coefficient of thermal conductivity: normal temperature 0.035-0.0.042W/m.k
Average sound absorption coefficient (125HZ-4000HZ): 0.45-0.7
Solubility: 100-250mg/L
The invention has the advantages that compared with the prior art:
1. adopting the soluble fibre that mixes with human body fluid is main raw material(s), and it is minimum that effect on human health is reduced to.
2. can increase substantially the fire-resistant serviceability temperature (can reach 1000 ℃) of acoustical board,
The specific embodiment
Embodiment 1
One, solvable dimension part weight proportion (kg): SiO
285 parts, 11 parts of CaO+MgO, B
2O
32 parts, Al
2O
31 part, Fe
2O
30.5 part, Na
2O+K
20.5 part of O.
After the step above-mentioned raw materials of preparation method mixed, 1500~1800 ℃ were melt into liquid state in special resistance furnace (or electric arc furnaces, glass have a rest stove), utilized blowing process or got rid of a method (0.3~0.6Mpa blast) and carry out fiber production.
Existing resistance furnace is set up 3 groups of electrodes, because raw material changes, resistance is increased, and conductance reduces, and causes the fusing difficulty, for this increases by 3 groups of electrodes to existing resistance furnace, becomes 6 groups of electrodes, to improve the conductance of raw material.
The inorganic silicate fiber that dissolves in human body fluid that the present invention produces, softness and high resilience, average fibre diameter 1~5 μ m, fibre length is 30~150mm, slag ball content is 5~10%.
Fiber that the present invention obtains in PH7.3~7.5, soaks 24h in the meta-alkalescence solution that temperature is 37 ± 0.5 ℃, uses atomic absorption spectrometry, and its solubility is 100~250mg/L; And the conventional ceramic fiber solubility of contrast is 0mg/L.
Two, soluble fibre acoustical board part predominant quantity proportioning (kg):
60 parts of soluble fibres, 20 parts of silicate of soda or silicon dioxide gels, 5 parts of starch and/or polyvinyl alcohol, 10 parts of kieselguhr and/or expanded perlites, 5 parts of other materials.Other materials is reinforcing fibre (string); Anti-blushing agent (solid paraffin); Anticorrisive agent (boric acid and/or sodium pentachlorophenate)
The step of preparation method of the present invention is as follows;
1, fiber granulation: adopt comminutor to carry out, the granularity of granulated wool is at 10~20mm, and its slag ball content is 5%;
2, join slurry slurrying: granulated wool and binding material are mixed, stir in required ratio, and cotton pulp is than 10%;
3, moulding: on fourdrinier, carry out, comprise approach flow, vacuum suction filter dehydration or suction press dehydration and liquid drugs injection cutting part.Through the wet mat after the dehydration, its moisture content is generally 100~120%.
4, drying: at 100~350 ℃/50~150min, its moisture content of the dried goods of process is below 3%.
5, cutting: cutting comprises rip cutting, crosscut composition, all adopts machine cuts.
6, planing surface: cut, the slab after the crosscut, planish by surface plane.
7, surface spraying: the slab behind the planing surface, carry out surperficial flush coater, the coating for preparing (coating is made by polyvinyl alcohol, calcium carbonate superfine powder powder, titanium dioxide, calcite in powder, SPA202 defoamer etc.) by the pump weight feed, sprays glue with nozzle from the coating storage tank.
8, redrying: the slab through the surface spraying, enter the redrying stove, baking temperature is 100~120 ℃, drying time is at 1~15min.
9, embossing: embossing has several forms such as roll extrusion flower, mold pressing flower, heat embossing.
10, essence is cut: the plate that adopts the machine cuts method will be pressed with decorative pattern cuts into accurate finished size, and size is generally 300 * 300; 400 * 400; 600 * 600 (mm).
The technical indicator of soluble fibre acoustical board of the present invention is as follows:
Bulk density: 220-600kg/m
3
Flexural strength: 0.7-1.0MPa
Moisture content: 0~3%
Flammable: the A level is not fired
Coefficient of thermal conductivity: normal temperature 0.035-0.0.042W/m.k
Average sound absorption coefficient (125HZ-4000HZ): 0.45-0.7
Solubility: 100-250mg/L
Soluble fibre acoustical board of the present invention is equal to except technical indicator or is better than the common acoustical board, can increase substantially the fire-resistant serviceability temperature (can reach 1000 ℃) of acoustical board.
Embodiment 2
One, soluble fibre part weight proportion (kg): SiO
256.5 part, 40 parts of CaO+MgO, B
2O
32 parts, Al
2O
31 part, Fe
2O
30.5 part;
The step of preparation method: 1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 5~10 μ m; Length 90~250mm; Slag ball content 5~10%; Solubility 100~250mg/L.
Two, soluble fibre acoustical board part predominant quantity proportioning (kg):
30 parts of soluble fibres, 20 parts in silicate of soda and/or aluminum sulfate, 3 parts of starch and/or carboxymethyl celluloses, 40 parts of kieselguhr or expanded perlites, 7 parts of other materials.Other materials is reinforcing fibre (string and/or a short glass fiber); Anti-blushing agent (rosin acid is received); Anticorrisive agent (boric acid or sodium pentachlorophenate).
The step of preparation method: the soluble fibre granulation to granularity at 5~10mm, slag ball content is 0~1%; Granulated wool and binding material mix, stir in required ratio, and cotton pulp is than 9%; Net forming, vacuum suction filter dehydration, liquid drugs injection cutting on the fourdrinier spreading mass; Moisture content 100~120%, 100~150 ℃/100~150min, to moisture content 2%; Machine cuts, surface plane planing; (100~120 ℃/10~15min of surface spraying, redryings.), embossing, accurately become required finished size, packing.
The quality index of soluble fibre acoustical board: bulk density 220~600kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0~3%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 3
Soluble fibre part weight proportion (kg): SiO
256 parts, 40 parts of CaO+MgO, B
2O
32 parts, Al
2O
31 part, Fe
2O
30.5 part, Na
2O+K
20.5 part of O; 1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 1~6 μ m; Length 100~250mm; Slag ball content 5~8%; Solubility 190~250mg/L.
Soluble fibre acoustical board part predominant quantity proportioning (kg): 50 parts of soluble fibres, 20 parts in silicate of soda and/or aluminum sulfate, totally 24 parts of 3 parts of polyvinyl alcohol and/or carboxymethyl celluloses, kieselguhr and expanded perlite, 3 parts of other materials.Other materials is reinforcing fibre (string or a short glass fiber); Anti-blushing agent (solid paraffin); Anticorrisive agent (sodium pentachlorophenate or sodium pentachlorophenate).
The step of preparation method: soluble fibre granulation, granularity are at 8~15mm, and slag ball content is 1~2%; Granulated wool and binding material mix, stir by dosage, and cotton pulp is than 7.5%; Approach flow moulding, vacuum suction filter dehydration, liquid drugs injection cutting; Moisture content 100~110%, 200~250 ℃/100~120min, to moisture content 2%; Machine cuts, surface plane planing; (100~120 ℃/10~15min of surface spraying, redryings.), embossing, accurately become required finished size, packing.
The quality index of soluble fibre acoustical board: bulk density 220~300kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0~3%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 4
Soluble fibre (hereinafter to be referred as fiber) part weight proportion (kg): SiO
258 parts, 40 parts of CaO+MgO, B
2O
31 part, Fe
2O
30.5 part, Na
2O+K
20.5 part of O;
1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 6~10 μ m; Length 150~250mm; Slag ball content 5~14%; Solubility 180~250mg/L.
Soluble fibre plate (hereinafter to be referred as plate) part proportioning (kg): 60 parts of soluble fibres, 10 parts of silicate of soda and/or silicon dioxide gels, 5 parts in cassava and/or acorn nut powder, 16 parts of kieselguhr or expanded perlites, 9 parts of other materials.
Other materials is reinforcing fibre (short glass fiber); Anti-blushing agent (rosin acid is received); Anticorrisive agent (boric acid or sodium pentachlorophenate).
The step of preparation method: soluble fibre granulation, granularity are at 10~15mm, and slag ball content is 2~3%; Granulated wool and binding material mix, stir by dosage, and cotton pulp is than 6.5%; Approach flow moulding, vacuum suction filter dehydration, liquid drugs injection cutting; Moisture content 100~110%, 200~250 ℃/100~120min, to moisture content 2%; Machine cuts, surface plane planing; (100~120 ℃/10~15min of surface spraying, redryings.), embossing, accurately become required finished size, packing.
The quality index of plate: bulk density 220~300kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 2.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 5
Fibre furnish (kg): SiO
260 parts, 38.5 parts of CaO+MgO, B
2O
31 part, Na
2O+K
20.5 part of O; 1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 2~5 μ m: length 30~200mm; Slag ball content 5~15%; Solubility 100~200mg/L.
Plate proportioning (kg): 45 parts of soluble fibres, 20 parts in silicate of soda and/or aluminum sulfate, 5 parts in carboxymethyl cellulose and/or acorn nut powder, 21 parts in clay and/or kieselguhr, 9 parts of other materials.
Other materials is reinforcing fibre (short glass fiber); Anti-blushing agent (rosin acid is received); Anticorrisive agent (boric acid or sodium pentachlorophenate).
The soluble fibre granulation, granularity 10~15mm, slag ball content 2~3%; Granulated wool and binding material mix, stir by dosage, and cotton pulp is than 8.5%: moisture content 100~110%, 200~250 ℃/100~120min, do to moisture content 2%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 550~600kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 1.5%: combustibility: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 2.
Embodiment 6
Soluble fibre weight proportion (kg): SiO
270 parts, 27.5 parts of CaO+MgO, B
2O
32 parts, Na
2O+K
20.5 part of O; 1500~1900 ℃ of fusions; 0.3~0.6Mpa blast: diameter 2~5 μ m; Length 90~250mm; Slag ball content 5~13%; Solubility 100~200mg/L.
Soluble fibre acoustical board part predominant quantity proportioning (kg): 55 parts of soluble fibres, 18 parts of silicate of soda and/or silicon dioxide gels, 5 parts of starch and/or polyvinyl alcohol, 13 parts of kieselguhr or expanded perlites, 9 parts of other materials.
Other materials is reinforcing fibre (short glass fiber); Anti-blushing agent (rosin acid is received); Anticorrisive agent (boric acid or sodium pentachlorophenate).
The soluble fibre granulation, granularity 15~20mm, slag ball content 2.5~3%; Cotton pulp is than 8.5%; Moisture content 100~110%, 200~250 ℃/100~120min are done to moisture content 1.5%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 500~550kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 1.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 7
Soluble fibre part weight proportion (kg down together): SiO
262 parts, 35.5 parts of CaO+MgO, B
2O
32 parts, Fe
2O
30.5 part; 1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 4~7 μ m; Length 70~250mm; Slag ball content 5~8%; Solubility 200~250mg/L.
Soluble fibre acoustical board part predominant quantity proportioning (kg): 45 parts of soluble fibres, 20 parts of silicon dioxide gel and/or alumina sols, 5 parts of starch or polyvinyl alcohol, 27 parts of kieselguhr or expanded perlites, 3 parts of other materials.
Other materials is reinforcing fibre (short glass fiber); Anti-blushing agent (solid paraffin and rosin acid are received); Anticorrisive agent (boric acid and/or bisnaphthol).
The soluble fibre granulation, granularity 10~15mm, slag ball content 3.5~4%; Cotton pulp is than 5.5%; Moisture content 100~110%, 300~350 ℃/50~100min are done to moisture content 0.5%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 400~450kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 8
Soluble fibre weight proportion: SiO
258.5 part, 39.5 parts of CaO+MgO, B
2O
31 part, Al
2O
30.1 part, Fe
2O
30.5 part, Na
2O+K
20.4 part of O; 1800~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 4~8 μ m; Length 30~200mm; Slag ball content 5~10%; Solubility 200~250mg/L.
Soluble fibre acoustical board part, predominant quantity proportioning (kg): 52 parts of soluble fibres, 18 parts of alumina sol and/or silicate of soda, 4 parts of starch and/or carboxymethyl celluloses, 23 parts of kieselguhr or clays, 3 parts of other materials.
Other materials is reinforcing fibre (short glass fiber); Anti-blushing agent (solid paraffin and rosin acid are received); Anticorrisive agent (boric acid and/or bisnaphthol).
The soluble fibre granulation, granularity 10~13mm, slag ball content 3~4%; Cotton pulp is than 7.5%; Moisture content 100~110%, 300~350 ℃/50~100min are done to moisture content 0.5%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 300~350kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 9
Soluble fibre weight proportion: SiO
257 parts, 40 parts of CaO+MgO, B
2O
32 parts, Al
2O
30.3 part, Fe
2O
30.3 part, Na
2O+K
20.4 part of O; 1900~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 6~10 μ m; Length 150~250mm; Slag ball content 5~12%; Solubility 150~250mg/L.
53 parts of soluble fibres, 17 parts of silicon dioxide gel and/or silicate of soda, 5 parts starch and/or cassavas, 22 parts of expanded perlite or clays, 3 parts of other materials.
Other materials is reinforcing fibre (string and/or a short glass fiber); Anti-blushing agent (solid paraffin and/or rosin acid are received); Anticorrisive agent (boric acid and/or bisnaphthol).
The soluble fibre granulation, granularity 10~15mm, slag ball content 4~5%; Cotton pulp is than 6.5%; Moisture content 100~110%, 300~350 ℃/50~100min are done to moisture content 0.85%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 250~300kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035-0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.
Embodiment 10
Fibre furnish (kg): SiO
280 parts, 17 parts of CaO+MgO, B
2O
32 parts, Fe
2O
30.5 part, Na
2O+K
2O0.5 part; 1900~2000 ℃ of fusions; 0.3~0.6Mpa blast; Diameter 3~6 μ m; Length 100~250mm; Slag ball content 5~14%; Solubility 100~240mg/L.
Plate proportioning: 53 parts of soluble fibres, 12 parts of silicon dioxide gels, 3 parts of starch and/or polyvinyl alcohol, 5 parts starch and/or cassavas, 23 parts of expanded perlite or clays, 4 parts of other materials.
Other materials is reinforcing fibre (string and/or a short glass fiber); Anti-blushing agent (solid paraffin and/or rosin acid are received); Anticorrisive agent (boric acid and/or bisnaphthol).
The soluble fibre granulation, granularity 16~20mm, slag ball content 3~4%; Cotton pulp is than 9.5%; Moisture content 100~110%, 300~350 ℃/50~100min are done to moisture content 0.5%; 100~120 ℃/10~15min of redrying.
The quality of plate: bulk density 300~350kg/m
3Flexural strength: 0.7~1.0Mpa; Moisture content: 0.5%; Flammable: the A level is not fired; Coefficient of thermal conductivity: normal temperature 0.035~0.042W/m.k; Average sound absorption coefficient (125HZ-4000HZ): 0.45~0.7; Solubility: 100~250mg/L (with the assay method of above-mentioned soluble fibre); All the other are with example 1.