CN115925318A - Fireproof insulation board added with ground glass and preparation method thereof - Google Patents
Fireproof insulation board added with ground glass and preparation method thereof Download PDFInfo
- Publication number
- CN115925318A CN115925318A CN202211475393.2A CN202211475393A CN115925318A CN 115925318 A CN115925318 A CN 115925318A CN 202211475393 A CN202211475393 A CN 202211475393A CN 115925318 A CN115925318 A CN 115925318A
- Authority
- CN
- China
- Prior art keywords
- glass fiber
- ground glass
- ground
- glass
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005337 ground glass Substances 0.000 title claims abstract description 61
- 238000009413 insulation Methods 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 120
- 239000000835 fiber Substances 0.000 claims abstract description 76
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000004513 sizing Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001723 curing Methods 0.000 description 17
- 229920000742 Cotton Polymers 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000009960 carding Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000011490 mineral wool Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011415 microwave curing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to the technical field of heat insulation materials, in particular to a fireproof heat insulation board added with ground glass and a preparation method thereof. The preparation process comprises the following steps: the chopped glass fiber is subjected to feeding, fluffing and finishing to form a net, and a water-soluble resin solution mixed with ground glass fiber in advance is uniformly sprayed on the surface of each layer of felt at a nozzle in the net laying process; finally, the product is obtained through needling felt forming, curing and sizing treatment. The ground glass fiber provided by the invention accounts for 0.5-15% of the total mass of the heat insulation material, and has almost no influence on the heat conductivity coefficient when the mass proportion of the ground glass fiber is low, and the heat conductivity coefficient can be increased when the mass proportion of the ground glass fiber is too high. According to the invention, the ground glass fiber is added into the glass fiber fireproof insulation board, so that the heat conductivity coefficient of the glass fiber fireproof insulation board is effectively reduced, and the insulation effect of a glass fiber product is improved.
Description
Technical Field
The invention relates to the technical field of heat-insulating materials and application thereof, in particular to a fireproof heat-insulating plate added with ground glass and a preparation method thereof.
Background
At present, in the building heat insulation industry, the external heat insulation of the external wall mainly adopts two heat insulation materials, namely an inorganic heat insulation material and an organic heat insulation material. The organic heat-insulating material represented by the polystyrene board has the advantages of low density, low heat conductivity coefficient, good dimensional stability, high vertical tensile strength and compressive strength and the like, but the organic heat-insulating material is not always provided with flame retardant property due to the limited property of the organic heat-insulating material. Inorganic heat-insulating materials represented by rock wool have good flame retardant property, but have the defects of high heat conductivity coefficient, easy layering, low vertical tensile strength and compressive strength and the like, and have the problems of high water absorption, low bonding strength between surface layers and the like in the long-term use process, and potential safety hazards of falling off of walls and the like in the use process.
The patent publication 'a novel insulation board and a production process thereof' (application number: CN 202010566915.4) provides a novel insulation board only containing glass fiber and phenolic resin, mechanical properties and insulation performance are ensured through specific material selection and proportioning, and the thermal conductivity coefficient of the obtained insulation board is said to be 0.028-0.035W/(m.K). The preparation method comprises the working procedures of feeding, unpacking, opening, carding, lapping, needling, cutting, spraying, glue extruding and curing forming. However, the preparation process involves a needling process, and in the production process of the common glass fiber needled and hooked non-woven thermal insulation material, due to the lapping effect of needling and fibers, a plurality of holes are formed among the fibers, so that the convective heat transfer rate is high during heat conduction, and further the improvement of the thermal conductivity of the thermal insulation material is limited and the thermal conductivity is unstable.
Disclosure of Invention
In order to solve the problems of the heat insulation board, the invention provides the fireproof heat insulation board added with the ground glass and the preparation method thereof. The heat insulating material is made of incombustible glass fiber through a needling process, and water-soluble resin glue is sprayed in the production process, so that the vertical tensile property and the compression property of the heat insulating material are improved, and meanwhile, the product is convenient to construct, has strong bonding force with mortar, and can be widely used for heat insulation of building outer walls and pipelines. The technical scheme of the invention is as follows:
as a first aspect of the present invention, there is provided a fireproof insulation board added with ground glass, comprising the following components: ground glass fibers in the form of ground glass, glass fibers in the form of a glass fiber mat, and a water-soluble resin glue, the ground glass fibers being dispersed in the glass fiber mat of glass fibers and the water-soluble resin glue.
Preferably, the milled glass fibers are present in an amount of 0.5 to 15%, preferably 1 to 15%, more preferably 1 to 5%; the glass fiber content in the glass fiber mat is 80-97%, and the content of the water-soluble resin glue is 2.5-10%, preferably 6%.
Preferably, the milled glass fiber component is selected from one or more of alkali-free glass fiber, medium alkali glass fiber, high alkali glass fiber and alkali-resistant glass fiber; has a length of 30 to 150 μm and a diameter of 3 to 80 μm, preferably 30 to 100 μm, and more preferably 3 to 30 μm.
Preferably, the glass fiber component of the glass fiber mat is selected from E-glass fibers, including starch-type, spun-drawn or thermoplastic chopped products; the length is 50 mm-120 mm, and the diameter is 5 μm-30 μm.
Furthermore, the glass fiber in the glass fiber felt is preferably a composition of FED9-70 type and FED6-70 type, the length of the FED9-70 type glass fiber is 50 mm-100mm, the diameter is 8 mu m-10 mu m, the length of the FED6-70 type glass fiber is 50 mm-100mm, the diameter is 5 mu m-7 mu m, and the more preferable mixture ratio is that the FED9-70: FED6-70=90:10.
furthermore, the ground glass fiber is E glass ground fiber, the length of the E glass ground fiber is 50 μm, and the diameter of the E glass ground fiber is 8 μm.
Preferably, the thickness of the fireproof insulation board added with the ground glass is between 4mm and 150 mm.
As a second aspect of the present invention, there is provided a method for preparing the fireproof heat-insulating board added with ground glass, comprising the following steps:
step 1, feeding;
step 2, fluffing, namely performing coarse opening and fine opening in an opener;
step 3, finishing the discharged web, and treating the discharged web by a finishing machine to obtain a fiber web, wherein the gram weight of a single-layer web of the fiber web is 80-140 g/m 2 ；
Step 4, sizing and lapping, namely spraying the water-soluble resin adhesive added with the ground glass fiber onto the fiber mesh prepared in the step 3, and simultaneously continuously laying the fiber mesh subjected to glue spraying in a multi-layer manner to form a glue spraying fiber mesh layer;
step 5, needling to form a felt, namely needling the glue spraying fiber mesh layer prepared in the step 4, wherein the needling comprises pre-needling from top to bottom and barbs from bottom to top, so as to prepare a glass fiber felt;
and 6, curing, namely curing and molding the glass fiber mat prepared in the step 5.
Further, in the step 4, the ground glass fiber is added into the water-soluble resin glue and stirred uniformly to obtain a mixed solution, and then the mixed solution is subjected to ultrasonic dispersion and then transferred into a storage tank for later use.
Furthermore, the mass ratio of the milled glass fiber to the water-soluble resin glue is 1-4:1.
Further, in step 4, the mixed liquid of the milled glass fiber and the water-soluble resin glue is continuously stirred during the storage process of the storage tank, so as to maintain the suspension state of the milled glass fiber in the water-soluble resin glue.
Preferably, in step 6, the milled glass fiber water-soluble resin adhesive is heated, cured and molded by a heated air circulation curing oven or cured by a microwave curing device, and the heated air circulation curing oven is divided into two stages:
the first stage is as follows: a dehumidification stage, wherein the temperature is 50-100 ℃, and the duration is 30-150 minutes;
and a second stage: a curing stage, wherein the temperature is 150-250 ℃, and the curing lasts for 50-200 minutes;
when the curing is carried out by using a microwave oven, the power of 250W-1000W is adopted, and the microwave drying is carried out for 3 hours.
The ground glass fiber and the water-soluble resin adhesive provided by the invention are uniformly dispersed in the product, and the vertical tensile strength is enhanced by adopting a needling hooking and water-soluble resin adhesive bonding mode between the non-woven layers.
The invention has the following beneficial effects:
1. according to the invention, the ground glass fibers are uniformly dispersed in the glass fiber fireproof insulation board, the number and the diameter of holes in the glass fiber fireproof insulation board can be reduced by adding the ground glass fibers, the convection heat transfer of gas can be effectively hindered, and the heat conductivity coefficient of the glass fireproof insulation board is further reduced, and the heat conductivity coefficient of the insulation board prepared from the same glass fiber mesh and water-soluble resin adhesive is reduced to 0.025 w/(m) from 0.035 w/(m) k by about 30% after the ground glass fibers are added.
2. The invention provides the glass fiber in the glass fiber felt with the optimal size, the ground glass fiber in the specific size range and the optimal combination proportion of the glass fiber in the glass fiber felt, and the obtained product has small fluctuation of the heat conductivity coefficient and stable heat preservation performance.
3. The content of the glass fiber component in the insulation board is increased in a form of grinding the glass fiber, more than 90% of production raw materials are the glass fiber which is an inorganic material, and the insulation board has no combustion performance, has A-level fireproof capability and can be widely used for high-rise building outer walls.
4. The invention adopts non-woven method production in the production process, each layer of fiber is a two-dimensional disordered structure, and the layers are connected by adopting needling hooks, so the invention has good sound insulation and absorption performance due to the existence of internal holes.
Drawings
FIG. 1 is a ground glass fiber modified glass fiber fireproof insulation board; wherein, the line from top to bottom vertically downward refers to the pre-barbed passage from top to bottom, and the line from bottom to top vertically upward refers to the barbed passage from bottom to top;
wherein: 1-fireproof insulation board, 2-ground glass fiber, 3-glass fiber felt and 4-single-layer fiber net.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. The present invention will be described in detail with reference to the following examples and drawings. The scope of protection of the invention is not limited to the embodiments, and any modification made by those skilled in the art within the scope defined by the claims also falls within the scope of protection of the invention.
In this example, the thermal conductivity was measured by a hotplate method for measuring the steady-state thermal resistance and related characteristics of a GBT10294-2008 thermal insulation material.
The milled glass fiber is one or more of alkali-free glass fiber, medium-alkali glass fiber, high-alkali glass fiber and alkali-resistant glass fiber, and is produced by using a ball mill, the milled glass fiber is uniformly mixed with water-soluble resin in advance during production, and then is uniformly sprayed on a fiber mesh during lapping, in the embodiment, the milled glass fiber is the alkali-free glass fiber (E) produced by Taishan glass fiber Limited company, and the size of the milled glass fiber is respectively as follows:
in this embodiment, the water-soluble resin is from Ack-Taier, model EXP725272M.
The glass fiber used in the present embodiment is hydrophobic glass fiber produced by taishan glass fiber limited, including but not limited to starch type, water wire type, thermoplastic type chopped product, etc., and is respectively:
the embodiment is as follows: production line of grinding glass fiber modified high-strength continuous glass fiber fireproof insulation board
Step 1, feeding:
after weighing various glass fibers uniformly according to the proportion, putting the glass fibers into an automatic feeder, setting the yield by a master control device, preferably controlling the yield to be 300 Kg/h-400 Kg/h, and sending the glass fibers to be coarsely opened through a belt after controlling the feeding amount by a feeding beater. The yield is controlled to be 350Kg/h in the specific embodiment.
Step 2, puffing treatment
(1) Coarse opening
And opening the glass fiber conveyed by the unpacking device in an opener, and conveying the glass fiber to the next procedure by a cotton conveying fan. Feeding a sheet metal part with the thickness of 3 mm; the input curtain is a PVC rubber curtain; the feeding roller is fed by adopting double licker-in rollers, and the diameter of the roller is 80mm; the diameter of the opening cylinder is 400mmmm, the upper surface of the opening cylinder is wound with card clothing, and the rotating speed is 800-1000 r/min; the cotton feeding fan is controlled by a motor through independent frequency conversion, and the air quantity can be automatically adjusted according to the yield. And conveying the raw materials subjected to the coarse opening treatment to next large-bin cotton mixing equipment through a cotton conveying fan and a pipeline. In application, the thickness of the sheet metal part can be 2mm-5mm, the diameter of the roller is 70mm-90mm, and the diameter of the opening cylinder is 400mm-500mm.
The large-bin cotton mixing equipment is used for fully mixing and storing the coarsely opened glass fibers in a cotton mixing large bin so as to achieve the effect of continuous production. The cotton blending large bin is common equipment in the field and comprises a cotton box, a conveying curtain, an inclined nail curtain, a beater, a condenser and a photoelectric control system.
Two sets of condenser are arranged above the cotton box for large-bin cotton mixing, and dust suction ports are arranged on the condenser and the punching part and are connected to a central dust removal unit.
(2) Fine opening
And the fine opening equipment is used for further opening the glass fibers fed from the large-bin cotton mixing machine in the opening machine and conveying the glass fibers to the next working procedure through the cotton conveying fan. The raw materials of the fine opening device are conveyed to a vibrating cotton box through a cotton conveying fan and a pipeline and conveyed to a carding machine through a belt weigher.
Step 3, finishing and outgoing
The carding equipment fully and uniformly mixes the glass fiber subjected to opening treatment on a carding machine, and outputs the glass fiber after the glass fiber is subjected to disorder treatment by a feeding roller, a chest cylinder, a transfer roller and inside and outside to obtain a fiber web, wherein the gram weight of the single-layer web of the prepared fiber web is 80-140 g/m 2 。
Step 4, sizing and lapping,
(1) Preparation of glue solution
Uniformly adding weighed ground glass fibers into water-soluble resin at normal temperature, wherein the mass ratio of the ground glass fibers to the water-soluble resin adhesive is 1-4:1, the solid content of the water-soluble resin adhesive is 35-55%, stirring for 5 minutes at the rotating speed of 15-30 rpm by using a stirrer, transferring the mixed solution into ultrasonic vibration equipment, dispersing for 5 minutes at the frequency of 35-40 KHZ, transferring to a storage tank for later use, simultaneously, the storage tank is provided with stirring equipment, and stirring at the rotating speed of 5-10 rpm in the storage process to prepare the glue solution.
(2) Spraying glue solution
The spraying equipment is provided with a uniform glue applying (spraying) device, and is arranged on a lapping trolley of the lapping machine together with the lapping machine for lapping on the bottom curtain, and the spraying equipment continuously and uniformly sprays glue on the fiber web along with the reciprocating motion of the lapping trolley. Putting the glue solution into a storage tank, conveying the glue solution to a split-flow control device through a multistage centrifugal pump, then splitting the glue solution into conveying pipes of all spray heads, arranging the spray head conveying pipes according to the number of the spray heads by using spray pipes, and spraying the glue solution onto a fiber web; the accuracy and uniformity of glue application (spraying) in the continuous production process are accurately controlled by adjusting the pressure and flow of a multi-stage centrifugal pump, setting the parameters of a flow dividing control device, selecting the specification of a spray head and the like, wherein the spraying flow is 14Kg/h, and the lapping speed in production is 38m/min. And through the reciprocating motion of the lapping trolley, the fiber web sprayed with the glue solution is continuously paved on the bottom curtain in multiple layers to form a glue spraying fiber web layer, and the glue spraying fiber web layer is conveyed to the next procedure.
Step 5, needling the mixture into felt
Pre-needling: and (4) compressing the fiber web layer obtained in the step (4), and needling the fiber web layer from top to bottom through a felting needle, wherein the needling frequency is 150rpm, and the needling depth is 45.1mm, so that the strength of the fiber web layer is preliminarily enhanced.
Barb: and (3) reversely needling the pre-needled fiber net layer from bottom to top through a needle with the needling frequency of 150rpm and the needling depth of 5.4mm, further strengthening the strength of the net layer to form a glue-containing needled felt blank felt, and grinding the glass fibers around the glass fibers to exist in a mode of needling and hooking the glass fibers. The felt output by the pre-needling machine enters the barb machine through the input curtain of the barb machine.
Step 6, curing
And (3) carrying out felt curing molding on the rubber-containing blank by using a hot air circulation curing furnace. According to the specification parameters and the productivity requirements of the products, the effective length, the production line speed, the number and the power of the hot air circulating systems, the power and the flow of each fan and other parameters of the hot air circulating curing furnace equipment are calculated, so that the technical requirements of the drying curing equipment are determined.
Further, the speed adjusting range of the production line of the device is determined to be 0.2-5 m/min, the product width adapting range is 1000-2000 mm, the product thickness adapting range is 10-100 mm, and the device is divided into two stages by using a hot air circulation curing furnace:
the first stage is as follows: a dehumidification phase at a temperature of 50 ℃ to 100 ℃ for 30 to 150 minutes, controlled at 80 ℃ in the examples described below, for 90 minutes.
And a second stage: and in the curing stage, the hot air circulation curing temperature is 150-250 ℃ for 50-200 minutes, and the temperature is controlled to be 200 ℃ in the embodiment described below for 100 minutes.
If the microwave oven is used for curing, 250W-1000W of power can be adopted, and microwave drying is carried out for 3 hours.
Step 7, sizing
And (4) transversely and longitudinally cutting the dried and cured product to produce the fireproof insulation board with a specific size specification.
Comparative example 1: glass fiber fireproof insulation board
The preparation method comprises the following steps: and (4) removing the operation of adding and grinding the glass fiber in the step (4) in the embodiment, and directly adopting water-soluble resin to produce the common glass fiber fireproof insulation board.
Comparative example 2: rock wool insulation board
The preparation method comprises the following steps: and (3) purchasing rock wool insulation boards of other manufacturers.
Test example 1: insulation board made of different ground glass
The fire-proof insulation board is prepared by adopting the ground glass fibers with different size parameters according to the steps of the embodiment, and the performance detection results of the fire-proof insulation board products obtained in the comparative example 1 and the comparative example 2 are shown in the following table:
TABLE 1 comparison of properties of insulation boards made from different ground glasses
As a result, the thermal conductivity of the fireproof heat-insulating board made of the milled glass fibers with different size parameters is different on the premise that the raw materials of the glass fiber net and the water-soluble resin glue are the same, wherein the thermal conductivity of the heat-insulating board made of the milled glass fibers 2 (with the length of 50 microns and the diameter of 9 microns) is lower than that of the milled glass fibers with smaller or larger size. In addition, the thermal conductivity of the milled glass fibers 4 having a length of 150 μm and a diameter of 80 μm is not superior to that of the rock wool fibers, and it is considered that the length thereof is too large, and voids are easily generated by hooking during needling, so that the total volume of the voids becomes large, which contributes to a certain improvement in the thermal conductivity, resulting in an increase in the thermal conductivity.
Test example 2: insulation board made of different glass fiber raw materials
The fireproof heat-insulation board is prepared by adopting glass fibers with different size parameters as fiber nets according to the steps of the embodiment, and the detection results of various properties of the obtained fireproof heat-insulation board product are shown in the following table:
TABLE 2 Performance index of insulation boards made from different glass fiber raw materials
According to results, compared with other mixture ratios, the heat conductivity coefficient of the fireproof heat-insulation board prepared from the raw material-2 is lower, and the analysis reason is probably as follows: the overall fiber diameter of the raw material-2 is lower, and after the fibers are carded into a net, the fiber mesh gaps are smaller, so that the gas convection heat transfer in the heat transfer process can be obviously weakened.
Test example 3: heat insulation board made of ground glass with different proportions
The results show that the method has the advantages of high efficiency,
1. when the same ground glass fiber is added, the ground glass fiber modified glass fiber fireproof insulation board produced by the raw material-2 has the lowest heat conductivity coefficient and the optimal performance.
2. When the same protofilament proportion is used, the addition of the milled glass fiber-2 can effectively reduce the fireproof insulation board of the glass fiber.
3. When the content of the ground glass fiber is lower (less than 1 percent), the heat conductivity coefficient of the glass fiber fireproof insulation board is hardly influenced; when the content of the ground glass fiber is higher (> 15%), the result shows that the heat conductivity coefficient of the glass fiber fireproof heat-insulating plate is increased, the analysis reason is that the holes are blocked when the content of the ground glass fiber is too much, direct heat conduction is carried out in the heat-insulating plate, and the heat conduction effect is improved, so that the optimal addition amount of the ground glass fiber is 1% -15%, more preferably 1% -5%, the heat conductivity coefficient of the product in the range is less in fluctuation, and the heat-insulating performance is more stable.
In addition, when the length and the diameter of the added ground glass fiber are too large, the inner hole of the glass fiber is easily blocked when the glass fiber fireproof heat-insulating plate is arranged, the heat conduction is increased, and the heat conductivity coefficient is increased, so that the overall performance of the product is influenced.
As shown in figure 1, the fireproof heat-insulation board 1 comprises a glass fiber mat 3 formed by laying a plurality of layers of single-layer fiber nets 4, water-soluble resin is soaked in the glass fiber mat 3, and ground glass fibers 2 are dispersed in the glass fiber mat of the glass fibers and the water-soluble resin glue.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The fireproof heat-insulation board added with ground glass is characterized by comprising the following components: milled glass fibers in the form of milled glass, glass fibers in the form of a glass fiber mat, and a water-soluble resin glue, the milled glass fibers dispersed in the glass fiber mat of glass fibers and the water-soluble resin glue;
wherein the milled glass fibers are selected from the group consisting of 30 to 150 μm in length and 3 to 80 μm in diameter; the glass fiber in the glass fiber felt is selected from the glass fiber felt with the length of 50 mm-120 mm and the diameter of 5μm-30μm;
the content of the ground glass fiber is 0.5-15%, the content of the glass fiber in the glass fiber mat is 80-97%, and the content of the water-soluble resin glue is 2.5-15%.
2. The fireproof heat-insulation board added with ground glass according to claim 1, wherein the ground glass fiber component is selected from one or more of alkali-free glass fiber, medium-alkali glass fiber, high-alkali glass fiber and alkali-resistant glass fiber; the glass fiber component in the glass fiber mat is alkali-free glass fiber and comprises starch type, water-drawing type or thermoplastic type chopped products.
3. The fireproof insulation board added with ground glass according to claim 1, wherein the content of ground glass fiber is 1-5%.
4. The fireproof thermal insulation board added with ground glass according to claim 1, wherein the ground glass fibers are selected from the group consisting of 30-100 μm in length and 3-30 μm in diameter.
5. The fireproof heat-insulation board added with ground glass according to claim 1, wherein the glass fiber in the glass fiber felt is a composition of two types of glass fibers, wherein one type is 50 mm-100mm in length and 8 μm-10 μm in diameter, and the other type is 50 mm-100mm in length and 5 μm-7 μm in diameter.
6. The fireproof insulation board added with ground glass according to claim 1, wherein the ground glass fiber is E glass ground fiber, the length of the ground glass fiber is 50 μm, and the diameter of the ground glass fiber is 8 μm.
7. The fireproof insulation board added with ground glass according to claim 1, wherein the thickness of the fireproof insulation board added with ground glass is 4-150 mm.
8. A preparation method of a fireproof heat-insulation plate added with ground glass is characterized by comprising the following steps:
step 1, feeding;
step 2, fluffing, namely performing coarse opening and fine opening in an opener;
step 3, finishing the discharged web, and treating the discharged web by a finishing machine to obtain a fiber web, wherein the gram weight of a single-layer web of the fiber web is 80-140 g/m 2 ；
Step 4, sizing and lapping, namely spraying the water-soluble resin adhesive added with the ground glass fibers onto the fiber mesh prepared in the step 3, and simultaneously continuously laying the fiber mesh subjected to glue spraying in a multi-layer manner to form a glue spraying fiber mesh layer;
step 5, needling to form a felt, namely needling the glue spraying fiber mesh layer prepared in the step 4, wherein the needling comprises pre-needling from top to bottom and barbs from bottom to top to obtain a glass fiber felt;
and 6, curing, namely curing and molding the glass fiber mat prepared in the step 5.
9. The method for preparing the fireproof heat-insulation plate added with the ground glass according to claim 8, wherein in the step 4, the ground glass fiber is added into the water-soluble resin adhesive to be uniformly stirred to obtain a mixed solution, the mixed solution is subjected to ultrasonic dispersion, and then the mixed solution is transferred to a storage tank for later use; the mixed liquid of the milled glass fiber and the water-soluble resin glue is continuously stirred in the storage process of the storage tank so as to maintain the suspension state of the milled glass fiber in the water-soluble resin glue.
10. The method for preparing the fireproof heat-insulation board added with the ground glass according to claim 9, wherein the mass ratio of the ground glass fiber to the water-soluble resin glue is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211475393.2A CN115925318A (en) | 2022-11-23 | 2022-11-23 | Fireproof insulation board added with ground glass and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211475393.2A CN115925318A (en) | 2022-11-23 | 2022-11-23 | Fireproof insulation board added with ground glass and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115925318A true CN115925318A (en) | 2023-04-07 |
Family
ID=86699915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211475393.2A Pending CN115925318A (en) | 2022-11-23 | 2022-11-23 | Fireproof insulation board added with ground glass and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115925318A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775639A (en) * | 2011-05-10 | 2012-11-14 | 郭晓明 | Milled fiber and glass fiber net cover containing same, and manufacture method thereof |
| CN103894275A (en) * | 2012-12-26 | 2014-07-02 | 嵊州市康乐复合材料有限公司 | Milled glass fiber production process |
| CN206436586U (en) * | 2016-12-28 | 2017-08-25 | 广东亚太新材料科技有限公司 | A kind of anti-hierarchical composite glued membrane of high-elastic thermoplasticity |
| CN109367168A (en) * | 2018-09-25 | 2019-02-22 | 无锡市中舶远航环保科技有限公司 | Wear-and corrosion-resistant terrace and preparation method thereof |
| CN110183753A (en) * | 2019-05-20 | 2019-08-30 | 陈文涛 | A kind of composite glass fiber felt material |
| CN115262081A (en) * | 2022-07-25 | 2022-11-01 | 泰山玻璃纤维有限公司 | Production process and production line of high-strength continuous glass fiber fireproof insulation board |
-
2022
- 2022-11-23 CN CN202211475393.2A patent/CN115925318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775639A (en) * | 2011-05-10 | 2012-11-14 | 郭晓明 | Milled fiber and glass fiber net cover containing same, and manufacture method thereof |
| CN103894275A (en) * | 2012-12-26 | 2014-07-02 | 嵊州市康乐复合材料有限公司 | Milled glass fiber production process |
| CN206436586U (en) * | 2016-12-28 | 2017-08-25 | 广东亚太新材料科技有限公司 | A kind of anti-hierarchical composite glued membrane of high-elastic thermoplasticity |
| CN109367168A (en) * | 2018-09-25 | 2019-02-22 | 无锡市中舶远航环保科技有限公司 | Wear-and corrosion-resistant terrace and preparation method thereof |
| CN110183753A (en) * | 2019-05-20 | 2019-08-30 | 陈文涛 | A kind of composite glass fiber felt material |
| CN115262081A (en) * | 2022-07-25 | 2022-11-01 | 泰山玻璃纤维有限公司 | Production process and production line of high-strength continuous glass fiber fireproof insulation board |
Non-Patent Citations (1)
| Title |
|---|
| 吴三硕: "《塑料的老化》", 28 February 1977, 北京：国防工业出版社, pages: 141 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101990586B (en) | Non-woven material and method of making such material | |
| US20050130538A1 (en) | Insulation containing a mixed layer of textile fibers and of rotary and/or flame attenuated fibers, and process for producing the same | |
| US20050170734A1 (en) | Insulation containing a mixed layer of textile fibers and of natural fibers and process for producing the same | |
| CN106757775B (en) | A kind of high-temp. resistant air filtering material and preparation method thereof | |
| EP3353132B1 (en) | Acoustical ceiling tile | |
| CN102272369A (en) | Non-woven material and method of making such material | |
| US10703668B2 (en) | Method of forming a web from fibrous material | |
| KR20180103076A (en) | Mineral fiber-based ceiling tiles | |
| US20160280595A1 (en) | Graphite-Mediated Control of Static Electricity on Fiberglass | |
| CN103196007A (en) | Vacuum insulated panel core material and manufacturing method thereof | |
| CN101218087A (en) | Polymer/WUCS mat and method of forming same | |
| US20150247270A1 (en) | Insulation pad for pipes and vessels | |
| CN110092995A (en) | A kind of basalt fibre composite plate and preparation method thereof | |
| US20090020218A1 (en) | Method of reinforcing fiber mat for building insulation | |
| CN115925318A (en) | Fireproof insulation board added with ground glass and preparation method thereof | |
| US20190047914A1 (en) | High noise reduction coefficient, low density acoustical tiles | |
| RU2539462C1 (en) | Method to manufacture acoustic panels and process line for their manufacturing | |
| US20060169397A1 (en) | Insulation containing a layer of textile, rotary and/or flame attenuated fibers, and process for producing the same | |
| CN115262081A (en) | Production process and production line of high-strength continuous glass fiber fireproof insulation board | |
| CN112030545A (en) | Heat-insulating felt and manufacturing method and production equipment thereof | |
| CN112080851A (en) | Heat-insulating felt and manufacturing method and production equipment thereof | |
| CA2986000A1 (en) | Insulation pad for pipes and vessels | |
| JP2000006115A (en) | Plate-like material or molding and manufacture thereof | |
| CN1015300B (en) | Resin impregnated fibre batt | |
| SK115896A3 (en) | Method of producing mineral wool shaped bodies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |