CN113370619A - Method for manufacturing adhesive force of reinforced glass fiber composite needled felt - Google Patents

Method for manufacturing adhesive force of reinforced glass fiber composite needled felt Download PDF

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Publication number
CN113370619A
CN113370619A CN202110691583.7A CN202110691583A CN113370619A CN 113370619 A CN113370619 A CN 113370619A CN 202110691583 A CN202110691583 A CN 202110691583A CN 113370619 A CN113370619 A CN 113370619A
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China
Prior art keywords
glass fiber
alkali
free glass
fiber mat
needled felt
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Pending
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CN202110691583.7A
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Chinese (zh)
Inventor
戚罗杰
戚应彪
左佳苹
许海亮
朱志晔
徐善专
杨艳霞
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Jiangsu Xi Yangyang Environmental Protection Equipment Science And Technology Co ltd
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Jiangsu Xi Yangyang Environmental Protection Equipment Science And Technology Co ltd
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Priority to CN202110691583.7A priority Critical patent/CN113370619A/en
Publication of CN113370619A publication Critical patent/CN113370619A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0038—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving application of liquid to the layers prior to lamination, e.g. wet laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1238—Heat-activated adhesive in the form of powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The application provides a manufacturing method for enhancing the adhesive force of a glass fiber composite needled felt, which comprises the following steps: covering the alkali-free glass fiber mat on a cylindrical roller, rotating the roller and spraying water mist and phenolic resin powder to the surface of the alkali-free glass fiber mat for multiple times; standing the alkali-free glass fiber mat with the phenolic resin powder for 5-10 minutes, and then covering a layer of alkali-free glass fiber mat on the alkali-free glass fiber mat; repeating the two steps to obtain the composite needled felt base cloth; baking the composite needled felt base cloth at the temperature of 105-110 ℃ for 0.5-1 hour, then carrying out hot rolling, and then putting the base cloth into an oven at the temperature of 180-200 ℃ for 2-3 hours to cure the phenolic resin powder, thereby obtaining the glass fiber composite needled felt. The phenolic resin powder is used as the binder to improve the binding property of the glass fiber composite needled felt, so that the dimensional stability of the glass fiber composite needled felt is improved.

Description

Method for manufacturing adhesive force of reinforced glass fiber composite needled felt
Technical Field
The application relates to the technical field of filtering materials, in particular to a manufacturing method for enhancing the adhesive force of a glass fiber composite needled felt.
Background
The bag filter is a device for separating the fine dust particles in the waste gas from the air flow by using a filter material, and the working principle is as follows: when the dust-containing gas enters the dust remover, the dust particles with larger particle sizes fall into the dust hopper because the gas speed is reduced under the collision action of the guide plate; the particle dust with small particle size enters a filter bag chamber along with the air flow; under the actions of the filtering material fiber and fabric such as separation, inertia, hook, static electricity and the like, dust is retained outside the filter bag, and purified gas permeates the filter bag and is discharged through the exhaust pipe.
The bag-type dust collector usually utilizes a bag-shaped filter element made of fiber woven cloth to collect solid particles in dust-containing gas, and usually, an alkali-free glass fiber filter material is high-temperature resistant and low in price, so that the bag-type dust collector is suitable for various bag-type dust collectors with no framework in the middle of a filter bag and with internal filter type back blowing (back suction) air or bag contraction dust removal. However, the alkali-free glass fiber has poor folding resistance and wear resistance, has low peel strength with the base cloth, is easy to wear and break due to frequent ash removal in the using process, and influences the service life of the alkali-free glass fiber. Therefore, the alkali-free glass fiber is not suitable for being used independently, and is usually required to be used for dust removal after being compounded with an organic fiber filter material. Such as glass fiber/terylene composite filter material, glass fiber/P84 composite filter material, glass fiber/PPS composite filter material, etc.
The composite glass fiber needled felt is a filtering sheet material with excellent performance, and is made into filtering bags with different performances and different specifications, thereby making outstanding contribution to powder product collection and environmental protection. In the prior art, the direct multilayer glass fiber composite layer is manufactured by carding and the like, the dust removal effect does not reach the expected effect, and the dust removal effect is mainly caused by insufficient adhesive force of the glass fiber composite needled felt.
Disclosure of Invention
The application provides a manufacturing method for enhancing the adhesive force of a glass fiber composite needled felt, which improves the adhesive force of the glass fiber composite needled felt.
A manufacturing method for enhancing the adhesive force of a glass fiber composite needled felt comprises the following steps:
s1, covering the alkali-free glass fiber mat on a cylindrical roller, rotating the roller and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times;
s2, standing the alkali-free glass fiber mat with the phenolic resin powder for 5-10 minutes, and then covering a layer of alkali-free glass fiber mat on the alkali-free glass fiber mat;
s3, rotating the roller and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times;
s4, repeating the steps S2 and S3 until 3-8 layers of alkali-free glass fiber mat are stacked up in an accumulated mode to obtain the composite needled felt base cloth;
s5, baking the composite needled felt base cloth at the temperature of 105-110 ℃ for 0.5-1 hour, and then carrying out hot rolling;
s6, putting the hot-rolled composite needled felt base cloth into an oven at 200 ℃ for 2-3 hours at 180 ℃ so as to completely cure the phenolic resin powder, thereby obtaining the glass fiber composite needled felt.
Preferably, the rotating drum and spraying the alkali-free glass fiber mat surface multiple times in the order of spraying the water mist and spraying the phenolic resin powder comprises:
rotating the roller and spraying water mist and phenolic resin powder to the surface of the alkali-free glass fiber mat twice respectively, wherein the mass of the sprayed water mist is 50% of that of the alkali-free glass fiber mat, and the mass of the sprayed phenolic resin powder is 2% of that of the alkali-free glass fiber mat.
Preferably, the repeating steps S2 and S3 until the alkali-free glass fiber mat cumulatively stacks 3 to 8 layers, and the composite needle punched felt base fabric includes:
and repeating the steps S2 and S3 until 5 layers of the alkali-free glass fiber mat are stacked up cumulatively to obtain the composite needled felt base cloth.
Preferably, the phenolic resin powder also comprises a lubricant, and the mass of the lubricant is 0.2-0.5% of the mass of the phenolic resin.
Preferably, the lubricant is a blend of a modified polyoxyethylene ether and a polyethylene glycol fatty acid ester.
According to the technical scheme, the manufacturing method for enhancing the adhesive force of the glass fiber composite needled felt has the following advantages compared with the prior art:
(1) the application adopts the phenolic resin powder as the binder, the alkali-free glass fiber mat is bonded together through the thermosetting effect of the phenolic resin, the phenolic resin has very high temperature resistance, the structural integrity of the phenolic resin can be kept even at very high temperature, the bonding force is good, the bonding property of the glass fiber composite needled mat is improved, and the size stability of the glass fiber composite needled mat is improved.
(2) This application adopts a mode of spraying water smoke and spraying phenolic resin powder to alkali-free glass fiber mat surface many times, can make phenolic resin powder at the even of alkali-free glass fiber mat surface distribution, has guaranteed that alkali-free glass fiber mat bonds evenly.
(3) According to the application, the phenolic resin is cured by hot rolling and then baking, and the obtained glass fiber composite needled felt is good in quality stability.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flow chart of a method for preparing an alkali-free glass fiber woven cloth filter material according to an embodiment of the application.
Detailed Description
Referring to fig. 1, the present application provides a method for making a glass fiber composite needled felt with enhanced adhesion, comprising the steps of: a manufacturing method for enhancing the adhesive force of a glass fiber composite needled felt comprises the following steps:
and S1, covering the alkali-free glass fiber mat on a cylindrical roller, rotating the roller, and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times, namely spraying water mist → spraying phenolic resin powder → water mist in sequence. In addition, the roller is preferably rotated and the water mist and the phenolic resin powder are sprayed onto the surface of the alkali-free glass fiber mat twice, wherein the mass of the water mist sprayed each time is 50% of the mass of the alkali-free glass fiber mat, and the mass of the phenolic resin powder sprayed each time is 2% of the mass of the alkali-free glass fiber mat. The process can ensure that the phenolic resin powder is uniformly distributed on the surface of the alkali-free glass fiber mat, so that the bonding force among the alkali-free glass fiber mats is uniform, the bonding effect is good, and the product quality is ensured.
S2, standing the alkali-free glass fiber mat with the phenolic resin powder for 5-10 minutes, and then covering a layer of alkali-free glass fiber mat on the alkali-free glass fiber mat, wherein the phenolic resin powder preferably further comprises a lubricant, the mass of the lubricant is 0.2-0.5% of that of the phenolic resin, and the lubricant is a blend of modified polyoxyethylene ether and polyethylene glycol fatty acid ester; polyoxyethylene ether, also known as polyoxyethylene or polyethylene oxide, is a crystalline, thermoplastic, water-soluble polymer, is a novel water-soluble resin, and is a nonionic surfactant; polyethylene glycol fatty acid esters are also nonionic surfactants. Therefore, standing for a period of time is beneficial to uniform distribution of the phenolic resin powder, so that a better bonding effect is achieved.
S3, rotating the roller and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times; and S4, repeating the steps S2 and S3 until 3-8 layers of the alkali-free glass fiber mat are stacked up cumulatively to obtain the composite needled felt base cloth. The preferable alkali-free glass fiber mat sheets are stacked 5 layers in an accumulated mode, so that the obtained glass fiber composite needled mat is good in flexibility, convenient to use and good in filtering effect. If the number of stacked layers is too many, the glass fiber composite needled felt is hard, and the filtering effect is greatly reduced.
S5, baking the composite needled felt base cloth at the temperature of 105-110 ℃ for 0.5-1 hour, and then carrying out hot rolling; the baking is to remove the water in the composite needled felt base cloth so as to facilitate the subsequent hot rolling. The hot rolling is carried out by pressurizing and heating the composite needled felt base cloth through a steel rod, and the temperature of a hot rolling roll is as follows: 180 ℃, the pressure between the hot rolls is: 1MPa, hot rolling speed: 1m/min, so that the phenolic resin flows, diffuses and then is thermally cured to generate bonding points, and the glass fiber composite needled felt can be obtained after cooling.
S6, putting the hot-rolled composite needled felt base cloth into an oven at 200 ℃ for 2-3 hours at 180 ℃ so as to completely cure the phenolic resin powder, thereby obtaining the glass fiber composite needled felt. In order to further enable the phenolic resin to be completely and uniformly cured, the hot-rolled composite needled felt base cloth is placed in an oven with the temperature of 180-200 ℃ for 2-3 hours, so that the phenolic resin powder is completely and uniformly cured, and the glass fiber composite needled felt with stable quality and good bonding effect is obtained.
According to the technical scheme, the manufacturing method for enhancing the adhesive force of the glass fiber composite needled felt is good in adhesive force, improves the adhesive property of the glass fiber composite needled felt, and has the characteristics of good dimensional stability and quality stability.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure.

Claims (5)

1. The manufacturing method for enhancing the adhesive force of the glass fiber composite needled felt is characterized by comprising the following steps of:
s1, covering the alkali-free glass fiber mat on a cylindrical roller, rotating the roller and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times;
s2, standing the alkali-free glass fiber mat with the phenolic resin powder for 5-10 minutes, and then covering a layer of alkali-free glass fiber mat on the alkali-free glass fiber mat;
s3, rotating the roller and spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for multiple times;
s4, repeating the steps S2 and S3 until 3-8 layers of alkali-free glass fiber mat are stacked up in an accumulated mode to obtain the composite needled felt base cloth;
s5, baking the composite needled felt base cloth at the temperature of 105-110 ℃ for 0.5-1 hour, and then carrying out hot rolling;
s6, putting the hot-rolled composite needled felt base cloth into an oven at 200 ℃ for 2-3 hours at 180 ℃ so as to completely cure the phenolic resin powder, thereby obtaining the glass fiber composite needled felt.
2. The method for improving the bonding force of the glass fiber composite needled felt according to claim 1, wherein the step of spraying water mist and phenolic resin powder on the surface of the alkali-free glass fiber mat for a plurality of times by rotating a roller comprises the following steps:
rotating the roller and spraying water mist and phenolic resin powder to the surface of the alkali-free glass fiber mat twice respectively, wherein the mass of the sprayed water mist is 50% of that of the alkali-free glass fiber mat, and the mass of the sprayed phenolic resin powder is 2% of that of the alkali-free glass fiber mat.
3. The method of claim 2, wherein the repeating steps S2 and S3 until the alkali-free glass fiber mat is stacked in an accumulated manner by 3-8 layers to obtain the composite needled felt base cloth comprises:
and repeating the steps S2 and S3 until 5 layers of the alkali-free glass fiber mat are stacked up cumulatively to obtain the composite needled felt base cloth.
4. The method for improving the bonding force of the glass fiber composite needled felt according to any one of claims 1 to 3, wherein the phenolic resin powder further comprises a lubricant, and the mass of the lubricant is 0.2 to 0.5 percent of the mass of the phenolic resin.
5. The method for improving the bonding force of the glass fiber composite needled felt according to claim 4, wherein the lubricant is a blend of modified polyoxyethylene ether and polyethylene glycol fatty acid ester.
CN202110691583.7A 2021-06-22 2021-06-22 Method for manufacturing adhesive force of reinforced glass fiber composite needled felt Pending CN113370619A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101160425A (en) * 2004-12-28 2008-04-09 欧文科宁知识产权资产有限公司 Polymer/wucs mat for use in automotive applications
CN103467907A (en) * 2012-06-08 2013-12-25 上海杰事杰新材料(集团)股份有限公司 Composite plate and preparation method thereof
CN105964060A (en) * 2016-06-28 2016-09-28 含山县科宇环境工程有限公司 Filter material for bag-type deduster
CN106400599A (en) * 2016-09-08 2017-02-15 南京航空航天大学 High-temperature-resisting filter paper and preparation method thereof
CN109529452A (en) * 2018-11-26 2019-03-29 辽宁凯富环保科技集团有限公司 A kind of preparation method of glass fibre compound spiked felt filtering material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101160425A (en) * 2004-12-28 2008-04-09 欧文科宁知识产权资产有限公司 Polymer/wucs mat for use in automotive applications
CN103467907A (en) * 2012-06-08 2013-12-25 上海杰事杰新材料(集团)股份有限公司 Composite plate and preparation method thereof
CN105964060A (en) * 2016-06-28 2016-09-28 含山县科宇环境工程有限公司 Filter material for bag-type deduster
CN106400599A (en) * 2016-09-08 2017-02-15 南京航空航天大学 High-temperature-resisting filter paper and preparation method thereof
CN109529452A (en) * 2018-11-26 2019-03-29 辽宁凯富环保科技集团有限公司 A kind of preparation method of glass fibre compound spiked felt filtering material

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Application publication date: 20210910