Methods for manufacturing artificial glass fibers

Abstract

The present invention relates to a method for manufacturing water-treated artificial glass fiber (MMVF), comprising: a. providing a mineral melt, b. providing a fiberizing apparatus, c. fiberizing the mineral melt to form artificial glass fiber (MMVF), d. collecting the MMVF, and then e. applying water, comprising about 0.1 wt% to about 1 wt% of the weight of the MMVF, onto the MMVF to form water-treated MMVF.

Description

Technical Field

[0001] This invention relates to a method for manufacturing water-treated synthetic glass fibers and a method for manufacturing synthetic glass fiber components. Background Technology

[0002] It is known to use synthetic glass fiber (MMVF) to manufacture MMVF components, such as boards, panels, and slabs. MMVF is typically bonded with a cured adhesive composition to create MMVF components. MMVF components can be used as insulation materials and cladding.

[0003] There is a need for improved methods of manufacturing MMVFs. There is a need for environmentally friendly manufacturing methods. There is a need to reduce the storage time required for conditioning MMVFs. There is a need to reduce the packaging required for packaging MMVFs. There is a need to reduce the amount of adhesive used in MMVF components while maintaining flexural strength. There is a need to reduce the density of MMVF components to save on raw material and transportation costs. There is a need to increase the flexural strength of MMVF components. There is a need to increase the fire resistance rating of MMVF components. Therefore, the object of this invention is to alleviate the above-mentioned problems. Summary of the Invention

[0004] According to a first aspect of the present invention, a method for manufacturing water-treated synthetic glass fiber (MMVF) is provided, comprising:

[0005] a. Provide mineral melt,

[0006] b. Provide fiber processing equipment

[0007] c. Fiberizing mineral melts to form artificial glass fibers (MMVF),

[0008] d. Collect MMVF, then

[0009] e. Apply water, approximately 0.1 wt% to approximately 1 wt% of the weight of the MMVF, to the MMVF to form a water-treated MMVF.

[0010] According to a second aspect of the invention, a bale, mat, or collection comprising loose fibers of water-treated synthetic glass fiber manufactured according to a first aspect of the invention is provided.

[0011] According to a third aspect of the present invention, a method for manufacturing a synthetic glass fiber element (MMVF element) is provided, comprising:

[0012] i. Providing water-treated synthetic glass fiber (MMVF) manufactured according to the first aspect of the invention,

[0013] ii. Provide adhesive,

[0014] iii. Apply the adhesive to the MMVF to form a mixture.

[0015] iv. Shape the mixture.

[0016] v. To cure a mixture to form an MMVF element. Detailed Implementation

[0017] This invention relates to a method for manufacturing water-treated synthetic glass fiber (MMVF), comprising:

[0018] a. Provide mineral melt,

[0019] b. Provide fiber processing equipment

[0020] c. Fiberizing mineral melts to form artificial glass fibers (MMVF),

[0021] d. Collect MMVF, and then apply water, which is about 0.1 wt% to about 1 wt% of the weight of MMVF, to the MMVF to form water-treated MMVF.

[0022] The advantage of this invention is that it provides an improved method for manufacturing MMVF. The use of water in this method is environmentally friendly because it eliminates the need for additional chemicals. Surprisingly, we have found that water-treated MMVF can be stored for a shorter time before use compared to untreated MMVF. Using the MMVF of this invention, conditioning occurs more rapidly. This has the advantage of a faster manufacturing process and reduced required storage capacity. Furthermore, it brings the production of MMVF closer to its intended use, meaning that it is easier to manage any peak and off-peak periods of fiber demand, thereby reducing waste and energy consumption. As MMVF is known to age over time, a particular advantage of this invention is the faster conditioning process.

[0023] It should be understood that water treatment can lead to changes in MMVF and / or its surface.

[0024] It is known that water is used as a coolant in part of the formation of MMVF, but the water is used during the formation process itself, for example in the spinning cup or cascade spinner, and before the MMVF is collected. Therefore, the water used as a coolant before collecting the MMVF is different from the water treatment step e. The inventors have found that introducing water during the fiberization process, such as into the spinning cup or cascade spinner, does not produce the advantages of the present invention. Therefore, it is clear that it is necessary to collect the MMVF as described in step d.

[0025] Preferably, after step e, a portion of the water will evaporate from the MMVF.

[0026] The MMVF produced by this invention is easier to bundle, especially since it does not require complete or partial coverage by materials such as cardboard or plastic. Surprisingly, the bundle retains its shape when tied with only a single thread or rope. Preferably, virtually all surface areas of the bundle are left uncovered. Surprisingly, bundles of water-treated MMVF are denser than bundles of untreated MMVF.

[0027] Preferably, in step e, the temperature of the MMVF is in the range of about 10°C to about 100°C, more preferably about 30°C to about 90°C, and more preferably about 50°C to about 80°C. One advantage is that the MMVF can be processed over a wide temperature range. This makes the water treatment step compatible with existing manufacturing methods and eliminates the need for excessive cooling or heating.

[0028] Preferably, in step e, the water temperature is in the range of about 10°C to about 100°C, more preferably about 30°C to about 90°C, and even more preferably about 50°C to about 80°C. Such a temperature is convenient for manufacturing.

[0029] Preferably, in step e, the water is saturated steam. This provides an efficient way to utilize water. Advantageously, the saturated steam can be generated using heat from the manufacturing process. This recycling is environmentally friendly.

[0030] Preferably, in step e, the temperature of the MMVF is higher than the temperature of the water. This is beneficial for the water treatment process. Without being bound by theory, it is believed that a higher MMVF temperature reduces the reaction time between the water and the MMVF and increases water evaporation.

[0031] Preferably, step e includes applying about 0.2 wt% to about 0.8 wt% of water by weight of the MMVF to the MMVF to form a water-treated MMVF, preferably about 0.3 wt% to about 0.5 wt% of water. It is advantageous to control the amount of water used in this process to balance the need to reduce water consumption while achieving the advantages of the invention.

[0032] Preferably, mineral materials are provided and melted in a furnace to form a mineral melt.

[0033] Preferably, in step c, the mineral melt is fiberized using a spinning cup or a cascade spinning machine. These techniques are known in the manufacture of MMVFs.

[0034] Preferably, in step c, the MMVF is cooled before step d. Optionally, water is used for a portion of the cooling process, preferably for cooling the machine, and more preferably for cooling the airflow. It should be understood that any water used for cooling is different from the water treatment applied in step e after the MMVF is collected in step d.

[0035] Preferably, these steps occur sequentially. It should be understood that step d occurs before step e.

[0036] Preferably, steps a to e are consecutive; more preferably, these steps are performed sequentially.

[0037] Preferably, in step d, collection means aggregation, such that multiple MMVFs form an aggregate of MMVFs.

[0038] Preferably, in step d, the MMVF is collected on a belt, more preferably on a conveyor belt. More preferably, the MMVF is conveyed directly on the belt to water treatment step e.

[0039] Preferably, after collecting the MMVF in step d and before step e, the MMVF remains substantially in the same position relative to the adjacent MMVF.

[0040] Preferably, step e occurs approximately 1 second to approximately 15 minutes after MMVF collection in step d, more preferably approximately 10 seconds to approximately 10 minutes, and more preferably 1 minute to approximately 5 minutes. Preferably, water treatment step e is performed immediately after MMVF formation. This results in a highly efficient process.

[0041] Preferably, the MMVF is disentangled after step d and before and during step e.

[0042] Preferably, the MMVF is detangled after step d and before or during step e.

[0043] Preferably, after step d and during water treatment step e, the MMVF is subjected to detangling treatment.

[0044] Preferably, the detangling treatment is an airflow. Preferably, the airflow has a speed of about 1 m / s to about 150 m / s, more preferably about 5 m / s to about 80 m / s. Detangling contributes to the uniform distribution of MMVF, thereby contributing to the uniform distribution of water treatment.

[0045] Preferably, the untangling process is as described in WO2011 / 012712, which is incorporated herein by reference in its entirety.

[0046] Preferably, in step d, the MMVF takes the following form:

[0047] A. A mesh, preferably, wherein the thickness of the mesh is in the range of about 5 cm to about 30 cm, preferably about 10 cm to about 20 cm, or

[0048] B. Cluster, or

[0049] C. Loose fibers.

[0050] Preferably, in step d, the MMVF is in the form of a web. Web fabrication is an efficient method for manufacturing MMVF. Webs can be rolled up for storage or bundled as needed. In the web, the fibers are not bonded together with adhesives but are entangled with adjacent fibers to form fiber clusters. The web is wider and / or longer than its thickness. The thickness of the web is preferably measured perpendicular to the surface in which it is formed.

[0051] Preferably, during step e, the net is rotated about the longitudinal axis. This helps to apply water to the MMVF.

[0052] Preferably, in step d, the MMVF is in the form of a cluster. In the cluster, the fibers are not bonded together with an adhesive, but rather entangled with adjacent fibers to form a fiber mass. The height, length, and width of the cluster are typically independent and range from about 5 mm to about 25 mm, preferably from about 5 mm to about 20 mm. The cluster preferably has an irregular shape.

[0053] Preferably, the cluster is flipped when water is applied during step e. This helps to apply water to the MMVF.

[0054] Preferably, in step d, the MMVF is in the form of loose fibers. Loose fibers are aggregates of fibers not bonded together with adhesives and can be separated into individual fibers.

[0055] Preferably, the loose fibers are turned over when water is applied during step e. This helps to apply water to the MMVF.

[0056] Preferably, in step e, water is applied by spraying, preferably using a piezoelectric sprayer, electrostatic sprayer, ultrasonic sprayer, or pressure sprayer. These can produce water with a high surface area, which contributes to the water treatment MMVF.

[0057] Preferably, in step e, water is sprayed onto the top surface of the MMVF, and the MMVF is flipped or rotated. Preferably, the MMVF is flipped or rotated during step e. This helps to apply water to the MMVF in a consistent manner.

[0058] Preferably, in step e, water is sprayed through at least one hydraulic nozzle, preferably about one to about eight hydraulic nozzles, and more preferably about two to about six hydraulic nozzles. This helps to apply water to the MMVF in a consistent manner.

[0059] Preferably, in step e, water is sprayed through at least one set of hydraulic nozzles, preferably about two to about four sets of hydraulic nozzles. Preferably, each set of hydraulic nozzles has about one to about eight hydraulic nozzles, preferably about two to about six hydraulic nozzles. This helps to apply water to the MMVF in a consistent manner.

[0060] Preferably, in step e, the water is treated water, preferably water treated by chemical and / or physical means, preferably filtered or purified water, and preferably ion-exchanged water. This has the advantage of reducing any impurities in the water.

[0061] Preferably, in step e, water is collected from precipitation, preferably filtered precipitation. This method of precipitation recovery is environmentally friendly. Precipitation includes rain, sleet, snow, and hail, with rain being preferred.

[0062] Preferably, in step e, water is not applied directly through precipitation (e.g., left outdoors, such as in the rain). This would prevent control over the amount of water applied.

[0063] Preferably, in step e, the water is in the form of droplets, preferably with a droplet size of about 10 μm to about 500 μm, more preferably about 100 μm to about 300 μm. The droplets allow water to be applied precisely to the MMVF and cover a large surface area of ​​the MMVF. The droplets also allow a substantially uniform amount of water to be applied to the fibers.

[0064] Preferably, the MMVF is asbestos fiber or glass fiber, with asbestos fiber being preferred. This material is considered a known material for manufacturing MMVF.

[0065] Preferably, the MMVF has a diameter of about 2 μm to about 10 μm, more preferably about 2 μm to about 5 μm, and even more preferably about 3 μm to about 4 μm. Such a diameter is suitable for MMVF elements.

[0066] Man-made glass fiber (MMVF) can have any suitable oxide composition. The fiber can be glass fiber, ceramic fiber, basalt fiber, slag fiber, rock fiber, or stone fiber. Preferably, the fiber type is common rock fiber, stone fiber, or slag fiber, with stone fiber being the most preferred.

[0067] Stone fibers typically contain the following weight percentages of oxides:

[0068] SiO2: 30 to 51;

[0069] CaO: 8 to 30;

[0070] MgO: 2 to 25;

[0071] FeO (including Fe2O3): 2 to 15;

[0072] Na₂O + K₂O: not exceeding 10;

[0073] CaO+MgO: 10 to 30.

[0074] In a preferred embodiment, the MMVF has the following elemental contents, calculated as oxides in wt%:

[0075] SiO2: at least 30, 32, 35 or 37; not exceeding 51, 48, 45 or 43;

[0076] Al2O3: at least 12, 16 or 17; not exceeding 30, 27 or 25;

[0077] CaO: at least 8 or 10; not exceeding 30, 25 or 20;

[0078] MgO: at least 2 or 5; not exceeding 25, 20 or 15;

[0079] FeO (including Fe2O3): at least 4 or 5; not exceeding 15, 12 or 10;

[0080] FeO+MgO: at least 10, 12 or 15; not exceeding 30, 25 or 20;

[0081] Na₂O + K₂O: zero or at least 1; not exceeding 10;

[0082] CaO+MgO: at least 10 or 15; not exceeding 30 or 25;

[0083] TiO2: zero or at least 1; not exceeding 6, 4 or 2;

[0084] TiO2+FeO: at least 4 or 6; not exceeding 18 or 12;

[0085] B2O3: zero or at least 1; not exceeding 5 or 3;

[0086] P2O5: zero or at least 1; not exceeding 8 or 5;

[0087] Other: zero or at least 1; not exceeding 8 or 5.

[0088] The MMVF produced by the method of the present invention preferably has the following elemental contents, calculated in wt% of oxides:

[0089] SiO2 35 to 50;

[0090] Al2O3 12 to 30;

[0091] TiO2 at most 2;

[0092] Fe2O3 3 to 12;

[0093] CaO 5 to 30;

[0094] MgO at most 15;

[0095] Na2O 0 to 15;

[0096] K2O 0 to 15;

[0097] P2O5 at most 3;

[0098] MnO at most 3;

[0099] B2O3 at most 3.

[0100] Another preferred composition of MMVF has the following elemental contents, calculated in wt% of oxides:

[0101] SiO2 39-55%, preferably 39-52%;

[0102] Al2O3 16-27%, preferably 16-26%;

[0103] CaO 6-20%, preferably 8-18%;

[0104] MgO 1-5%, preferably 1-4.9%;

[0105] Na2O 0-15%, preferably 2-12%;

[0106] K2O 0-15%, preferably 2-12%;

[0107] R2O(Na2O+K2O) 10-14.7%, preferably 10-13.5%;

[0108] P2O5 0-3%, preferably 0-2%;

[0109] Fe2O3 (total iron) 3-15%, preferably 3.2-8%;

[0110] B2O3 0-2%, preferably 0-1%;

[0111] TiO2 0-2%, preferably 0.4-1%;

[0112] Others: 0-2.0%.

[0113] Glass fibers typically contain the following elements, expressed in wt% as oxides:

[0114] SiO2: 50 to 70;

[0115] Al2O3: 10 to 30;

[0116] CaO: not exceeding 27;

[0117] MgO: not exceeding 12.

[0118] Glass fibers may also contain the following elements, expressed in wt% as oxides:

[0119] Na₂O + K₂O: 8 to 18, specifically Na₂O + K₂O is greater than CaO + MgO;

[0120] B2O3: 3 to 12.

[0121] Some glass fiber compositions may contain less than 2% Al2O3.

[0122] In a preferred embodiment, the MMVF has the following elemental contents, calculated as oxides in wt%:

[0123] SiO2 is approximately 36 to approximately 41;

[0124] Al2O3 is approximately 18 to approximately 23;

[0125] TiO2 approximately 0.1 to approximately 2;

[0126] Fe2O3 approximately 0.5 to approximately 2;

[0127] CaO+MgO 35 to approximately 40;

[0128] K₂O + Na₂O: approximately 0.5 to approximately 3;

[0129] P2O5 is approximately 0 to approximately 1;

[0130] MnO is approximately 0.5 to approximately 2.

[0131] It should be understood that the amount of Fe2O3 cited may include iron existing in the form of FeO.

[0132] Preferably, no adhesive is used in the method for manufacturing water-treated MMVF described herein.

[0133] Preferably, the method further includes:

[0134] f. Bundle the water-treated MMVF.

[0135] Bundling is a suitable way to store MMVFs. Storing MMVFs for conditioning is beneficial.

[0136] Preferably, the bundle can be formed from an MMVF mesh, and more preferably, the mesh is rolled up to form the bundle.

[0137] Preferably, the bundles can be formed from clusters.

[0138] Preferably, MMVF in the form of clusters or loose fibers can be stored in containers, more preferably in silos. This provides an easy-to-manage method for storing MMVF.

[0139] Preferably, the method further includes storing the MMVF for at least about 1 day, preferably about 1 day to about 6 weeks, and more preferably about 3 days to about 3 weeks. This allows the fibers to be conditioned. Surprisingly, compared to the prior art, the storage time of the MMVF of the present invention can be reduced while still achieving the desired performance.

[0140] Preferably, the method includes storing MMVF at a temperature range of about 10°C to about 100°C, more preferably about 20°C to about 75°C, and even more preferably about 20°C to about 50°C. These temperatures are suitable for storing fibers.

[0141] Preferably, the method includes storing MMVF at approximately 1.8 g / m³. 3 Approximately 600g / m 3 Preferred concentration: approximately 5g / m 3 Approximately 200g / m 3 Under certain absolute humidity conditions. Absolute humidity refers to the number of grams of water vapor per cubic meter of air. These conditions are suitable for regulating fibers.

[0142] Preferably, MMVF is stored in containers in the form of bundles, pads, or loose fibers and / or clusters, with bundles being the most suitable method for storing MMVF for use.

[0143] This invention relates to bundles, mats, or aggregates of loose fibers comprising water-treated synthetic glass fibers manufactured as described herein. These are suitable methods for storing MMVF for use.

[0144] This invention relates to a method for manufacturing artificial glass fiber elements (MMVF elements), comprising:

[0145] i. Provide water-treated synthetic glass fiber (MMVF) manufactured as described herein.

[0146] ii. Provide adhesive,

[0147] iii. Apply the adhesive to the MMVF to form a mixture.

[0148] iv. Shape the mixture.

[0149] v. To cure a mixture to form an MMVF element.

[0150] One advantage of this invention is that water-treated MMVF can be used to manufacture MMVF elements with improved properties. One advantage is that less adhesive is required when MMVF is used to form MMVF elements, while maintaining the strength of the MMVF elements, such as flexural strength. Therefore, the amount of adhesive used in the MMVF elements can be reduced while maintaining or improving flexural strength. This allows for a reduction in the density of the MMVF elements, saving on raw materials, transportation costs, and reducing the weight of construction projects. Furthermore, the MMVF elements exhibit increased flexural strength.

[0151] The fire resistance rating of MMVF components can be improved because less adhesive is required, which means a reduction in the amount of flammable material.

[0152] Preferably, step i includes providing a water-treated MMVF from bundles, pads, or aggregates of loose fibers manufactured as described herein.

[0153] One advantage is that MMVFs can be stored and then used to manufacture MMVF components. Preferably, loose fibers and tufts can be used directly in the process.

[0154] Preferably, the method includes processing the water-treated MMVF from the bundle into clusters. This makes it easier for the MMVF to be distributed within the MMVF elements. Preferably, the MMVF in the bundle undergoes a detangling process as described herein.

[0155] Preferably, in step v, the mixture is cured by applying heat and / or pressure. This has the advantage of increasing the strength of the MMVF element.

[0156] Preferably, in step v, the mixture is cured at a temperature of about 200°C to about 400°C, more preferably about 225°C to about 300°C.

[0157] Preferably, in step v, the mixture is cured under a pressure of about 15 bar to about 20 bar, preferably about 16 bar to about 18 bar, and more preferably about 17.5 bar.

[0158] Preferably, the adhesive is a phenolic adhesive.

[0159] Preferably, the density of the MMVF element is about 900 kg / m³. 3 Approximately 1400 kg / m 3 Within the range, approximately 1000 kg / m³ is preferred. 3 Approximately 1300 kg / m 3 The preferred weight is approximately 1050 kg / m³. 3 Approximately 1200 kg / m 3 Preferably, the density is about 1100 kg / m³. 3Approximately 1150 kg / m 3 This density is particularly suitable for MMVF elements used as building insulation or cladding. It is especially advantageous that the density of the MMVF elements falls within these ranges, and surprisingly, water-treated MMVF imparts higher aging flexural strength to the resulting MMVF elements. For those seeking to reduce the weight of MMVF elements while maintaining their aging flexural strength, this invention illustrates such an MMVF element. The density of the MMVF element can be reduced by decreasing the amount of adhesive used. This, in turn, reduces the amount of flammable adhesive present, thereby improving the fire resistance rating of the MMVF element.

[0160] Preferably, the method includes applying an adhesive comprising about 5 wt% to about 15 wt% of the weight of the MMVF, more preferably about 10 wt% to about 12 wt% of the adhesive. This amount of adhesive helps to balance the density, aging flexural strength, and fire resistance rating of the MMVF element.

[0161] Preferably, the loss on ignition (LOI) of the MMVF element is from about 5 wt% to about 15 wt%, more preferably from about 1 wt% to about 12 wt%. LOI is related to the amount of binder in the MMVF element. This amount of binder helps to balance the density, aging flexural strength, and fire resistance rating of the MMVF element.

[0162] According to Table 2 on page 6 of EAD 090001-00-0404 (May 2015), the LOI and adhesive content were determined by heating the sample at 650°C for at least 1 hour. The difference in weight percentage before and after heat treatment is the LOI.

[0163] Preferably, the MMVF element has a strength of at least about 19 N / mm². 2 Preferably around 22 N / mm 2 Preferably at approximately 22 N / mm 2 Approximately 30 N / mm 2 Within the range, approximately 25 N / mm is preferred. 2 Approximately 30 N / mm 2 The aging flexural strength. This aging flexural strength applies to insulation materials and coatings. The aging flexural strength and initial flexural strength can be measured according to EAD 090001-01-0404 Precast Compressed Mineral Wool Board.

[0164] Preferably, the thickness of the MMVF element is in the range of about 5 mm to about 60 mm, more preferably in the range of about 5 mm to about 30 mm, more preferably in the range of about 5 mm to about 20 mm, and more preferably in the range of about 10 mm to about 20 mm.

[0165] Preferably, the width and length of the MMVF element are each independently in the range of about 20 cm to about 4 m, more preferably in the range of about 50 cm to about 3.5 m, and more preferably in the range of about 1 m to about 3 m.

[0166] Preferably, the MMVF element is a plate, more preferably a sheet, panel, or thick plate. Preferably, the MMVF element is used as an insulating material or as a coating.

[0167] Example

[0168] Example 1

[0169] The properties of the water-treated MMVF (Group 2) according to the present invention were compared with the properties of the untreated control MMVF (Group 1).

[0170] Method for creating MMVF in Group 1

[0171] A combination of basalt, recycled asbestos, and raw material additives is heated to approximately 1500°C. The molten material is then poured onto a cascade spinning wheel to produce MMVF quenched in an airflow. Subsequently, the MMVF is collected in clusters on a conveyor belt. Instead of being sprayed with water, the MMVF from one cluster is bundled and stored for 4 to 6 weeks.

[0172] Methods for creating MMVF in Group 2

[0173] A combination of basalt, recycled asbestos, and raw material additives is heated to approximately 1500°C. The molten material is then poured onto a cascaded spinning wheel to produce MMVF quenched in an airflow. The MMVF is then collected in clusters on a conveyor belt. Two sets of electro-hydraulic nozzles, each with two nozzles, are then sprayed with water at 0.3 wt% of the MMVF's weight, spraying the top surface before and after the MMVF clusters are turned. The MMVF clusters are then bundled and stored for 4 to 6 weeks.

[0174] Methods for manufacturing MMVF components

[0175] The bundles were then separated into MMVF clumps, and approximately 12 wt% phenolic adhesive was added to the MMVF to form a mixture. On a pressing line, the mixture was pressed into 8 mm thick sheets at 17 bar and cured at 235°C with a linear velocity of 100 mm / s, resulting in a core temperature of 200°C to form the MMVF element. This element is a panel approximately 8 mm thick.

[0176] Measurement

[0177] The burn-off, aging flexural strength, initial flexural strength, density, and thickness of MMVF elements formed using one or two sets of MMVF were measured, and the results are shown in Table 1. The median p-value for all measurements was 0.000.

[0178] Table 1

[0179]

[0180] The results showed that the loss on ignition of the water-treated MMVF element was lower than that of the control MMVF element. This indicates that less binder was used in the water-treated MMVF element, which reduced the amount of flammable material present.

[0181] The initial flexural strength of the control MMVF element was higher than that of the water-treated MMVF element; however, surprisingly, the water-treated MMVF element exhibited even higher aging flexural strength. This indicates that the water-treated MMVF element possesses greater stability due to lower flexural strength loss and higher aging flexural strength. Furthermore, the higher aging flexural strength is advantageous.

[0182] The density of the control MMVF element was higher than that of the water-treated MMVF element. Therefore, surprisingly, despite the lower density of the water-treated MMVF element, it exhibited higher aging flexural strength than the control MMVF element.

[0183] In summary, the water-treated MMVF element has lower density, lower burn-off, shorter settling time, and higher aging flexural strength, which demonstrates the superior performance of the water-treated MMVF of the present invention.

[0184] Example 2

[0185] Experiments were conducted to compare the effects of water treatment and storage time.

[0186] Methods for manufacturing MMVF components

[0187] A combination of basalt, recycled asbestos, and raw material additives is heated to approximately 1500°C. The molten material is then poured onto a cascaded spinning machine to produce MMVF quenched in an airflow. The MMVF is then collected in clusters on a conveyor belt. The MMVF clusters are then sprayed with water using two sets of electro-hydraulic nozzles, each with two nozzles, before and after the clusters are turned over, as shown in Table 2. The MMVF is then bundled and stored, as shown in Table 2. MMVF elements are then formed as described in Example 1.

[0188] Measurement

[0189] The aging strength, storage time, and water consumption are shown in Table 2. The burn-off, aging flexural strength, initial flexural strength, density, and thickness of the MMVF element were measured, and the results are shown in Table 2.

[0190] Table 2

[0191]

[0192] The results showed that increasing the storage period from 2 weeks to 4 weeks had a significant beneficial effect on intensity when the water spraying rate was low (0.34%), but this effect was not significant when the water spraying rate was high (0.64%). Similarly, increasing the water spraying rate from 0.34% to 0.64% had a significant effect on intensity after 2 weeks of storage, but no significant effect after 4 weeks of storage. The term "significant" refers to statistical significance with a 95% confidence level in the context of a corner design of comparative experiments (Mann-Whitney test).

[0193] The maximum strength achievable through water spraying or storage time cannot result in performance exceeding the physical maximum specified strength. Therefore, the effect of increasing water spraying gradually disappears with increasing storage time, and vice versa. In other words, water spraying enhances the conditioning that occurs in wool during storage. Note that the above conclusion applies to increasing the amount of water sprayed. The effect of water spraying is significant compared to not spraying water, as shown in Example 1.

[0194] In this specification, embodiments have been described in a manner that allows for a clear and concise description; however, it is intended to be illustrative and should be understood that embodiments may be combined or separated differently without departing from the invention. For example, it should be understood that all preferred features described herein apply to all aspects of the invention described herein, and vice versa.

[0195] In this specification, the term "about" means ±20%, more preferably ±10%, even more preferably ±5%, and most preferably ±2%.

[0196] In this specification, the term "substantially" means a deviation of ±20%, more preferably ±10%, even more preferably ±5%, and most preferably ±2%.

[0197] In this specification, the use of "substantially" includes the use of "completely" and / or "precisely". That is, when the word "substantially" is included, it should be understood that this also includes the use of specific sentences that do not contain the term "substantially".

[0198] It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. These changes and modifications can be made without departing from the spirit and scope of the invention and without diminishing its incidental advantages. Therefore, such changes and modifications are intended to be covered by the appended claims.

Claims

1. A method for manufacturing water-treated synthetic glass fibers, comprising: a. Provide mineral melt, b. Provide fiber processing equipment c. Fiberizing mineral melts to form artificial glass fibers. d. Collect artificial glass fibers, then e. Applying water at a weight of 0.1 wt% to 1 wt% of the synthetic glass fiber to the synthetic glass fiber to form water-treated synthetic glass fiber; f. No adhesive is used in the method described.

2. The method according to claim 1, wherein in step e, the temperature of the artificial glass fiber is in the range of 10°C to 100°C, and / or In step e, the water temperature is in the range of 10°C to 100°C.

3. The method according to claim 2, wherein in step e, the temperature of the artificial glass fiber is in the range of 30°C to 90°C.

4. The method according to claim 2, wherein in step e, the temperature of the artificial glass fiber is in the range of 50°C to 80°C.

5. The method according to claim 2, wherein in step e, the temperature of the water is in the range of 30°C to 90°C.

6. The method according to claim 2, wherein in step e, the temperature of the water is in the range of 50°C to 80°C.

7. The method according to any one of claims 1-6, wherein step e comprises applying water, comprising 0.2 wt% to 0.8 wt% of the weight of the artificial glass fiber, to the artificial glass fiber to form a water-treated artificial glass fiber.

8. The method of claim 7, wherein step e comprises applying water, comprising 0.3 wt% to 0.5 wt% of the weight of the artificial glass fiber, to the artificial glass fiber to form a water-treated artificial glass fiber.

9. The method according to any one of claims 1-6, wherein in step d, the artificial glass fiber is in the following form: A. Net, or B. Cluster, or C. Loose fibers.

10. The method according to claim 9, wherein the thickness of the mesh is in the range of 5 cm to 30 cm.

11. The method of claim 10, wherein the thickness of the mesh is in the range of 10 cm to 20 cm.

12. The method according to any one of claims 1-6, wherein in step e, water is applied by spraying; and / or Wherein the water is treated water; and / or wherein the water is in the form of droplets.

13. The method of claim 12, wherein water is applied using a piezoelectric sprayer, an electrostatic sprayer, an ultrasonic sprayer, or a pressure sprayer.

14. The method of claim 12, wherein the water is water that has been treated by chemical and / or physical means.

15. The method of claim 14, wherein the water is filtered or purified water.

16. The method of claim 15, wherein the water is ion-exchanged water.

17. The method of claim 12, wherein the droplet size is from 10 μm to 500 μm.

18. The method of claim 17, wherein the droplet size is from 100 μm to 300 μm.

19. The method according to any one of claims 1-6, wherein the artificial glass fiber is subjected to an untangling treatment after step d and before and / or during step e.

20. The method of claim 19, wherein the untangling process is an airflow.

21. The method of claim 20, wherein the airflow has an airflow velocity of 1 m / s to 150 m / s.

22. The method of claim 21, wherein the airflow has an airflow velocity of 5 m / s to 80 m / s.

23. The method according to any one of claims 1-6, further comprising: The water-treated synthetic glass fiber is bundled together.

24. The method according to any one of claims 1-6, further comprising storing the artificial glass fiber for at least 1 day.

25. The method of claim 24, wherein the artificial glass fiber is stored for 1 day to 6 weeks.

26. The method of claim 24, wherein the artificial glass fiber is stored for 3 days to 3 weeks.

27. The method of claim 24, further comprising storing the artificial glass fiber in a temperature range of 10°C to 100°C; and / or This includes storing the synthetic glass fiber at 1.8 g / m³. 3 Up to 600g / m 3 At the absolute humidity.

28. The method of claim 27, further comprising storing the artificial glass fiber in a temperature range of 20°C to 75°C.

29. The method of claim 28, further comprising storing the artificial glass fiber in a temperature range of 20°C to 50°C.

30. The method of claim 27, comprising storing the synthetic glass fiber at 5 g / m³ 3 Up to 200g / m 3 At the absolute humidity.

31. A bundle, pad, or aggregate of loose fibers comprising water-treated synthetic glass fibers manufactured by the method according to any one of claims 1 to 30.

32. A method for manufacturing artificial glass fiber components, comprising: i. Providing water-treated synthetic glass fibers manufactured by the method according to any one of claims 1 to 30, ii. Provide adhesive, iii. Apply adhesive to the synthetic glass fiber to form a mixture. iv. Shape the mixture. v. To cure a mixture to form an artificial glass fiber element.

33. The method of claim 32, further comprising processing the water-treated synthetic glass fibers from the bundle into clusters.

34. The method of claim 32, wherein the density of the artificial glass fiber element is 900 kg / m³. 3 Up to 1400 kg / m 3 Within the range, and / or This includes applying an adhesive at a weight of 5 wt% to 15 wt% of the synthetic glass fiber.

35. The method of claim 34, wherein the density of the artificial glass fiber element is 1000 kg / m³. 3 Up to 1300 kg / m 3 Within the range.

36. The method of claim 35, wherein the density of the artificial glass fiber element is 1050 kg / m³. 3 Up to 1200kg / m 3 Within the range.

37. The method of claim 36, wherein the density of the artificial glass fiber element is 1100 kg / m³. 3 Up to 1150kg / m 3 Within the range.

38. The method of claim 34, comprising applying an adhesive comprising 10 wt% to 12 wt% of the weight of the artificial glass fiber.

39. The method according to any one of claims 32 to 38, wherein the artificial glass fiber element has a strength of at least 19 N / mm². 2 The aging bending strength.

40. The method of claim 39, wherein the artificial glass fiber element has a strength of 22 N / mm². 2 The aging bending strength.

41. The method of claim 39, wherein the artificial glass fiber element has a strength of 22 N / mm². 2 Up to 30 N / mm 2 The aging flexural strength within the range.

42. The method of claim 41, wherein the artificial glass fiber element has a strength of 25 N / mm². 2 Up to 30 N / mm 2 The aging flexural strength within the range.

43. The method according to any one of claims 32 to 38, wherein the thickness of the artificial glass fiber element is in the range of 5 mm to 60 mm; and / or The artificial glass fiber component is a board.

44. The method of claim 43, wherein the thickness of the artificial glass fiber element is in the range of 5 mm to 30 mm.

45. The method of claim 44, wherein the thickness of the artificial glass fiber element is in the range of 5 mm to 20 mm.

46. ​​The method of claim 45, wherein the thickness of the artificial glass fiber element is in the range of 10 mm to 20 mm.

47. The method of claim 43, wherein the artificial glass fiber element is a sheet, panel, or plate.

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