CN104057665A - Glass fiber compound fireproof laminated board - Google Patents
Glass fiber compound fireproof laminated board Download PDFInfo
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- CN104057665A CN104057665A CN201410230474.5A CN201410230474A CN104057665A CN 104057665 A CN104057665 A CN 104057665A CN 201410230474 A CN201410230474 A CN 201410230474A CN 104057665 A CN104057665 A CN 104057665A
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Abstract
The invention relates to a glass fiber compound fireproof laminated board which is a glass fiber thin felt compounded with a curing coating, which is formed by high-temperature drying and laminating after the glass fiber thin felt is impregnated with resin slurry. The resin slurry comprises 10.5-12.5 percent of phenol, 12.5-15.5 percent of formaldehyde, 10-13 percent of ethyl alcohol, 0.3-1 percent of ammonium hydroxide, 0.5-1 percent of caustic soda, 46-54 percent of calcium carbonate or calcium oxide, 5-8 percent of aluminum hydroxide or aluminum oxide and 4-5 percent of softening agent. By combining with characteristics of glass fiber and resin organically, the glass fiber compound fireproof laminated board has the advantages of fire prevention, water prevention property, high strength, corrosion resistance, heat insulation, good sound insulation property and the like.
Description
Technical field
The present invention relates to glass fibre composite fire-proof laminate, for construction and decoration field.
Background technology
Traditional product adopts wood pulp paper impregnating resin in the market, by the interior decoration surfacing forming after high temperature high pressure process, its performance with light weight, mildew-resistant, fire prevention, heat-resisting, antidetonation, easy to clean is widely used, except solid wood furniture, the plate fitment of all kinds of top grades has the participation of melamine plate.In the integral wardrobe of middle and high end, add above-mentioned interior decoration surfacing can effectively prevent the problem of environmental pollution that the formaldehyde that uses as anticorrisive agent and Lauxite bring, also alternative wood-based planet, aluminium-plastic panel etc. are made the facings such as minute surface, high abrasion, antistatic, embossment, metal to this interior decoration surfacing in addition.But papery fire-proof board also exists some problems, as poor in flameproof effect, water resistance is poor, matter is crisp, intensity is low and affect its application performance.
Summary of the invention
In order to overcome above-mentioned defect, the object of the present invention is to provide a kind of glass fibre composite fire-proof laminate, adopt glass dipping technique and hot extrusion briquetting technique, the characteristic of glass fibre and resin is combined, there is fire prevention, good waterproof performance, high, the anti-corruption of intensity, the advantage such as heat insulation, sound-proofing is good.
To achieve these goals, the invention provides a kind of glass fibre composite fire-proof laminate, by glass fibre mat after impregnating resin slurry, the glass fibre mat that is compounded with solidified coating forming through hyperthermia drying, pressing; The formula of described resin slurry is phenol 10.5%-12.5%, formaldehyde 12.5%-15.5%, ethanol 10%-13%, ammoniacal liquor 0.3%-1%, caustic soda 0.5%-1%, calcium carbonate or calcium oxide 46%-54%, aluminium hydroxide or aluminium oxide 5%-8%, softening agent 4%-5%.
As a further improvement on the present invention: the preparation process of described resin slurry is:
A, the phenol of getting 50%-75%, formaldehyde add reactor after melting together with ammoniacal liquor, start stirring simultaneously, are warming up to 55-60 ℃ in 15-25min, keep 15-25min;
B, with the speed of 10 ℃ of heating up for every 15 minutes, be warming up to 70-90 ℃, at this temperature, react;
In c, question response still, solution occurs, after muddiness, maintaining the temperature at 75-85 ℃, adds residue phenol, formaldehyde, and add caustic soda after 50-60 minute; After above-mentioned material adds, in 15-20min, heat up and control temperature at 75-85 ℃;
D, the interior solution of question response still again occur muddiness and after 20 minutes, also repeatedly detecting solution reaches 52-67*10 in viscosity in observation
-6after ㎡/S index, add alcohol;
E, maintain the temperature at 75-85 ℃, after 25-35 minute, be cooled to below 35 ℃, close and stir and blanking;
F, before impregnation technology, by calcium carbonate or calcium oxide, aluminium hydroxide or aluminium oxide and softening agent and above-mentioned mixing of materials form resin slurry.
As the preferred embodiments of the present invention: described concentration of alcohol is more than 95%.
As the preferred embodiments of the present invention: described ammoniacal liquor is concentrated ammonia liquor.
As a further improvement on the present invention: in described glass fibre mat, the diameter of glass fibre is 6-16um, wherein length is that the glass fibre of 6-10 um accounts for the glass fibre that 25-50%, length are 10-16um and accounts for 50-75%.The collocation of glass fiber diameter thickness guarantees the compactness of felt face like this, prevents the absorption glue that glass fibre mat is too much.
As a further improvement on the present invention: on the one hand in order to guarantee the intensity in dipping process, on the other hand in order to guarantee the intensity of finished product and the cold and hot contraction that minimizing is caused by variations in temperature, the stability that keeps product, the glass fibre that the glass fibre in described glass fibre mat is 6-12mm by the length of 25-40%, the glass fibre collocation that the length of 60-75% is 16-32mm form.
As a further improvement on the present invention: the hyperthermia drying of described resin slurry is specially: adopt low early and high after cascade raising temperature subregion baking and curing technique, temperature is cascade raising temperature between 100-140 ℃.Can prevent that so the too high temperature in front road from solidify resin in advance, cause and in finished product, occur shrinkage cavity, thereby surperficial grow diming phenomenon affect the quality of product.
As a further improvement on the present invention: the present invention, according to the different pressing-in temp of different Thickness Design, time, pressure and parameters, is specially:
A: product thickness is 0.5-0.8mm, pressing pressure is 12-13 Mpa, and pressing-in temp is 100-120 ℃, and hot pressing time is 8-12 minute;
B: product thickness is 0.8-1.2mm, pressing pressure is 13-15 Mpa, and pressing-in temp is 110-125 ℃, and hot pressing time is 12-20 minute;
C: product thickness is 1.2-2.0mm, pressing pressure is 15-18Mpa, and pressing-in temp is 115-130 ℃, and hot pressing time is 18-25 minute;
D: product thickness is 2.0-3.0mm, pressing pressure is 18-25Mpa, and pressing-in temp is 120-135 ℃, and hot pressing time is 22-30 minute;
E: product thickness is 3.0-6.0mm, pressing pressure is 25-35Mpa, and pressing-in temp is 135-155 ℃, and hot pressing time is 30-40 minute.
The invention has the advantages that:
1, the present invention adopts glass fibre mat as substrate, has saved timber resources, and can recycle, and is beneficial to environmental protection.
2, the present invention adopts glass fibre mat as substrate, after impregnating resin slurry, through HTHP moulding, compares that to have heatproof high with organic fiber, does not fire anti-corruption, the feature such as heat insulation, sound-proofing good, and tensile strength is high, and electrical insulating property is good.
3, the present invention had both had the pliability of organic board, can re-workability, there is again fire prevention, the resistance to water of inorganic plate, and intensity is higher than any dalle, is the energy-conservation ideal material of novel building.
4, glass fibre composite fire-proof laminate of the present invention adopts with no paper veneer, fire resistance and heat-insulating property have been strengthened, its fire protecting performance is much better than the materials such as paper dalle, wood based panel, can be widely used in needing protection against the tide, mildew-resistant, fire prevention and high-intensity place, as used on interior wall, ceiling, exterior wall, roof, be particularly suitable for the extra high occasion of the fire protection requirements such as toilet, kitchen, general merchandise store, place of public amusement and use.
The specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1, the preparation of glass fibre composite fire-proof laminate:
The preparation of glass fibre mat: take glass fibre as raw material, preferably diameter 6um, length are that 8mm and diameter are that the alkali-free glass fibre that 14um, length are 25mm mixes by weight 1:2, according to maturation process, make glass fibre mat, fine and close uniformity and the production efficiency of glass mat have been guaranteed, testing its grammes per square metre is 80g/ ㎡, and combustible content is 18% ± 2%, and tension force is 10kg-20kg, hot strength is longitudinal 200N, laterally 100N.
Configuration resin slurry 1000kg, operates as follows: weigh phenol 120kg, liquid formaldehyde 146kg, high purity ethanol 120kg, the ammoniacal liquor 6kg that concentration is 30%, caustic soda 8kg, calcium carbonate 500kg, aluminium oxide 60kg, resin softening agent 40kg;
Phenol, the formaldehyde of getting 80kg add reactor after melting together with ammoniacal liquor, start stirring at low speed simultaneously, are warming up to 56 ℃ in 18min, keep 18min; Speed with 10 ℃ of intensifications in every 15 minutes is warming up to 80 ℃ again, and at this temperature, material carries out chemical reaction;
In question response still, solution occurs after muddiness, maintains the temperature at 80 ℃, adds remaining 40kg phenol and 68kg formaldehyde, and add caustic soda after 60 minutes; In 18min, heat up and control temperature at 80 ℃;
The interior solution of question response still again occurs muddiness and after 20 minutes, also repeatedly detecting solution reaches 55*10 in viscosity in observation
-6after the index of ㎡/S, add alcohol; Maintain the temperature at 80 ℃, after 30 minutes, be cooled to below 35 ℃, close and stir and blanking; By calcium carbonate or calcium oxide, aluminium hydroxide or aluminium oxide and softening agent and above-mentioned blanking are mixed to form resin slurry.
Impregnation technology: in prescribed limit, in this enforcement, the glass mat spread of 80g/ ㎡ is controlled at 40-60% according to the control of product impregnation resin content of different grammes per square metre glass fibre belts and customer requirement different-thickness, and solvent evaporates amount is controlled at 3-5%; The thickness of product after the control of spread guarantees uniform distribution in glass mat of glue in dipping process and controls pressing.During the too high pressing of spread, easily produce the glue that overflows; Too low bond while causing product pressing insecure.The control of solvent evaporates amount guarantees that product resin in pressing process, in the mobility of base material the inside, if solvent evaporates amount is higher, may cause having occurred in pressing process the phenomenons such as bag, layering; If solvent evaporates amount is on the low side,, in the time of may causing hot pressing, surface can not soak well and produce blowing phenomenon.
Stoving process: baking and curing process is divided into five regions carries out, and the temperature in first and second district is 110 ℃, 120 ℃, third and fourth, 5th district are 120 ℃, 130 ℃, 140 ℃.
In this enforcement, speed of production is 40m/min, and it regulates according to glass fibre mat thickness, guarantees that the rear product surface resin of dipping evenly solidifies.
Process for pressing: carry out pressing in oven dry, according to the different pressing-in temp of different Thickness Design, time, pressure and parameters, table 1 is as follows simultaneously:
| Product specification | Pressure (Mpa) | Temperature (℃) | Hot pressing time (min) | Temperature retention time (min) | Chilling temperature |
| 0.5-0.8mm | 12-13 | 100-120 | 8-12 | 15 | Below 35 ℃ |
| 0.8-1.2mm | 13-15 | 110-125 | 12-20 | 20 | Below 40 ℃ |
| 1.2-2.0mm | 15-18 | 115-130 | 18-25 | 20 | Below 50 ℃ |
| 2.0-3.0mm | 18-25 | 120-135 | 30 | 30 | Below 50 ℃ |
| 3.0-6.0mm | 25-35 | 135-155 | 40 | 40 | Below 50 ℃ |
In this step, the pressure of heat pressing process, temperature and hot pressing time three elements are interdependence, restriction mutually again, and three factors are different on the impact of thick china.
Hot pressing temperature is mainly that the chemical reaction of impregnating resin is played to catalytic action, accelerate to solidify, the demoulding that temperature is high after being conducive to overlay, and can shorten pressing cycle, improve output, but too high temperature makes resin have little time Uniform Flow solidifies, and causes plate face to have micro-pore.Plate face is bounce-back and rough easily.
Pressure can guarantee combination good between base material, under suitable temperature and pressure effect, the resin melting in impregnated paper, solidify after, form sealing, fine and close surface, can also make the not gentle micro-pore of substrate surface be filled.Do not affecting under the prerequisite of product quality, should adopt as far as possible low pressure, but the adhesion strength of too low pressure influence base material and impregnated paper and resin flows ability.
The length of hot pressing time depends on curing rate and the hot pressing temperature of impregnating resin, and overlong time can cause resin solidification excessive, loses due elasticity, occurs crackle, warpage easily to product in process; Time is too short, and resin solidification is inadequate, easily produces haftplatte phenomenon, the physicochemical property of impact, the durability of product.
This product is through flooding, adding after hot pressing, and product has the performance of common papery PLASTIC LAMINATED, and after testing, its flame retardant rating can reach A level, and oxygen index (OI) reaches 60, than grade of common fire prevention plate hight.80 ℃ of hot-water soaks do not have obvious bulging phenomenon for 72 hours, and water resistance is obviously better than papery plate.During construction and decoration because the nail-holding ability of glass fibre composite fire-proof laminate is strong, can be directly on sheet material boring install and without as traditional PLASTIC LAMINATED on body of wall mounting framework, therefore construction is simple, fast, has improved efficiency of construction.
Embodiment 2, the preparation of glass fibre composite fire-proof laminate:
The preparation of glass fibre mat: take glass fibre as raw material, preferably diameter 8um, length are that 11mm and diameter are that the alkali-free glass fibre that 15um, length are 27mm mixes by weight 1:2.5, according to maturation process, make glass fibre mat, fine and close uniformity and the production efficiency of glass mat have been guaranteed, testing its grammes per square metre is 110g/ ㎡, tension force is 18kg, and hot strength is longitudinal 210N, laterally 120N.
Configuration resin slurry 1000kg, operates as follows: weigh phenol 110kg, liquid formaldehyde 130kg, high purity ethanol 110kg, the ammoniacal liquor 10kg that concentration is 30%, caustic soda 10kg, calcium oxide 520kg, aluminium hydroxide 70kg, glass fibre softening agent 50kg;
Phenol, the 70kg formaldehyde of getting 80kg add reactor after melting together with ammoniacal liquor, start stirring at low speed simultaneously, are warming up to 58 ℃ in 20min, keep 22min; Speed with 10 ℃ of intensifications in every 15 minutes is warming up to 85 ℃ again, and at this temperature, material carries out chemical reaction;
In question response still, solution occurs after muddiness, maintains the temperature at 80 ℃, adds remaining phenol and formaldehyde, and add caustic soda after 55 minutes; In 16min, heat up and control temperature at 82 ℃;
The interior solution of question response still again occurs muddiness and after 20 minutes, also repeatedly detecting solution reaches 60*10 in viscosity in observation
-6after the index of ㎡/S, add alcohol; Maintain the temperature at 82 ℃, after 28 minutes, be cooled to below 35 ℃, close and stir and blanking; By calcium carbonate or calcium oxide, aluminium hydroxide or aluminium oxide and softening agent and above-mentioned blanking are mixed to form resin slurry.
Impregnation technology: in prescribed limit, in this enforcement, the glass mat spread of 110 g/ ㎡ is controlled at 50-80% according to the control of product impregnation resin content of different grammes per square metre glass fibre belts and customer requirement different-thickness, and solvent evaporates amount is controlled at 3-5%.
Stoving process: baking and curing process is divided into five regions carries out, and the temperature in first and second district is 110 ℃, 110 ℃, third and fourth, 5th district are 120 ℃, 130 ℃, 140 ℃.
In this enforcement, speed of production is 30m/min, and it regulates according to glass fibre mat thickness, guarantees that the rear product surface resin of dipping evenly solidifies.
Process for pressing: according to the form in embodiment 1, select suitable pressing-in temp, time, pressure and parameters according to different thickness, carry out pressing in oven dry simultaneously.
This product is through flooding, add hot pressing aftershaping, and final product performance index test is as follows:
Claims (9)
1. a glass fibre composite fire-proof laminate, is characterized by: by glass fibre mat after impregnating resin slurry, the glass fibre mat that is compounded with solidified coating forming through hyperthermia drying, pressing; The formula of described resin slurry is phenol 10.5%-12.5%, formaldehyde 12.5%-15.5%, ethanol 10%-13%, ammoniacal liquor 0.3%-1%, caustic soda 0.5%-1%, calcium carbonate or calcium oxide 46%-54%, aluminium hydroxide or aluminium oxide 5%-8%, softening agent 4%-5%.
2. glass fibre composite fire-proof laminate according to claim 1, is characterized by: the preparation process of described resin slurry is:
A, the phenol of getting 50%-75%, formaldehyde add reactor after melting together with ammoniacal liquor, start stirring simultaneously, are warming up to 55-60 ℃ in 15-25min, keep 15-25min;
B, with the speed of 10 ℃ of heating up for every 15 minutes, be warming up to 70-90 ℃, at this temperature, react;
In c, question response still, solution occurs, after muddiness, maintaining the temperature at 75-85 ℃, adds residue phenol, formaldehyde, and add caustic soda after 50-60 minute; After above-mentioned material adds, in 15-20min, heat up and control temperature at 75-85 ℃;
D, the interior solution of question response still again occur muddiness and after 20 minutes, also repeatedly detecting solution reaches 52-67*10 in viscosity in observation
-6after ㎡/S index, add alcohol;
E, maintain the temperature at 75-85 ℃, after 25-35 minute, be cooled to below 35 ℃, close and stir and blanking;
F, before impregnation technology, by calcium carbonate or calcium oxide, aluminium hydroxide or aluminium oxide and softening agent and above-mentioned mixing of materials form resin slurry.
3. glass fibre composite fire-proof laminate according to claim 1 and 2, is characterized by: described concentration of alcohol is more than 95%.
4. glass fibre composite fire-proof laminate according to claim 1 and 2, is characterized by: described ammoniacal liquor is concentrated ammonia liquor.
5. glass fibre composite fire-proof laminate according to claim 1, is characterized by: in described glass fibre mat, the diameter of glass fibre is 6-16um.
6. glass fibre composite fire-proof laminate according to claim 5, is characterized by: the glass fibre in described glass fibre mat is that the glass fibre of 6-10 um, the glass fibre collocation that the length of 50-75% is 10-16um form by the length of 25-50%.
7. according to the glass fibre composite fire-proof laminate described in claim 1 or 5 or 6, it is characterized by: the glass fibre collocation that the glass fibre that the glass fibre in described glass fibre mat is 6-12mm by the length of 25-45%, the length of 55-75% are 16-32mm forms.
8. glass fibre composite fire-proof laminate according to claim 1, is characterized by: the hyperthermia drying of described resin slurry is specially: adopt low early and high after cascade raising temperature subregion baking and curing technique, temperature is cascade raising temperature between 100-140 ℃.
9. glass fibre composite fire-proof laminate according to claim 1, is characterized by: described pressing is specially:
A: product thickness is 0.5-0.8mm, pressing pressure is 12-13 Mpa, and pressing-in temp is 100-120 ℃, and hot pressing time is 8-12 minute;
B: product thickness is 0.8-1.2mm, pressing pressure is 13-15 Mpa, and pressing-in temp is 110-125 ℃, and hot pressing time is 12-20 minute;
C: product thickness is 1.2-2.0mm, pressing pressure is 15-18Mpa, and pressing-in temp is 115-130 ℃, and hot pressing time is 18-25 minute;
D: product thickness is 2.0-3.0mm, pressing pressure is 18-25Mpa, and pressing-in temp is 120-135 ℃, and hot pressing time is 22-30 minute;
E: product thickness is 3.0-6.0mm, pressing pressure is 25-35Mpa, and pressing-in temp is 135-155 ℃, and hot pressing time is 30-40 minute.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415363A (en) * | 2017-06-30 | 2017-12-01 | 长兴泓矿炉料有限公司 | A kind of alumina silicate fibre refractory felt of damp-proof |
| CN112359604A (en) * | 2020-10-19 | 2021-02-12 | 安徽弘昌新材料有限公司 | Hard composite felt and preparation process thereof |
| CN112622369A (en) * | 2020-12-02 | 2021-04-09 | 常州中复丽宝第复合材料有限公司 | Fireproof and antibacterial special functional plate and preparation method thereof |
| CN113290986A (en) * | 2021-04-27 | 2021-08-24 | 常州中复丽宝第复合材料有限公司 | Water-based aldehyde-free fireproof antibacterial special functional sheet material and preparation method thereof |
| CN113929426A (en) * | 2021-09-30 | 2022-01-14 | 深圳朗生坤珑新材料科技有限公司 | Incombustible high-pressure lamination langrick board |
| GB2563043B (en) * | 2017-05-31 | 2023-01-11 | Acell Ind Ltd | Phenolic moulding material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2563043B (en) * | 2017-05-31 | 2023-01-11 | Acell Ind Ltd | Phenolic moulding material |
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| CN112359604A (en) * | 2020-10-19 | 2021-02-12 | 安徽弘昌新材料有限公司 | Hard composite felt and preparation process thereof |
| CN112622369A (en) * | 2020-12-02 | 2021-04-09 | 常州中复丽宝第复合材料有限公司 | Fireproof and antibacterial special functional plate and preparation method thereof |
| CN113290986A (en) * | 2021-04-27 | 2021-08-24 | 常州中复丽宝第复合材料有限公司 | Water-based aldehyde-free fireproof antibacterial special functional sheet material and preparation method thereof |
| CN113929426A (en) * | 2021-09-30 | 2022-01-14 | 深圳朗生坤珑新材料科技有限公司 | Incombustible high-pressure lamination langrick board |
| CN113929426B (en) * | 2021-09-30 | 2022-12-13 | 江苏朗生整装材料科技有限公司 | Incombustible high-pressure laminated plate |
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