KR101478032B1 - manufacturing mehtod of insulating materials having glass fiber - Google Patents
manufacturing mehtod of insulating materials having glass fiber Download PDFInfo
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- KR101478032B1 KR101478032B1 KR20140122662A KR20140122662A KR101478032B1 KR 101478032 B1 KR101478032 B1 KR 101478032B1 KR 20140122662 A KR20140122662 A KR 20140122662A KR 20140122662 A KR20140122662 A KR 20140122662A KR 101478032 B1 KR101478032 B1 KR 101478032B1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/488—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
본 발명은 유리섬유 단열재 제조방법에 관한 것이다.The present invention relates to a method for producing glass fiber insulation.
고온의 환경에서 단열성을 확보하기 위하여, 유리섬유 단열재를 사용한다. 유리섬유는 섭씨 5백도 이상의 고온에서도 형상이 변형되지 않는 장점은 있으나, 소재 자체의 특성상 인장력이 약해 쉽게 부서지는 문제가 발생하였다. 이로 인하여 가루날림 현상이 발생하는 문제가 있다.Glass fiber insulation is used to ensure insulation in a high temperature environment. The glass fiber has an advantage that the shape is not deformed even at a high temperature of 500 degrees Celsius or more, but due to the nature of the material itself, the tensile strength is weak and the glass fiber is easily broken. There is a problem that powder flaking occurs.
이와 관련된 기술로는 한국공개특허 제10-2013-0061200호(곡면형 유리섬유 단열재 및 그 제조방법)가 있다.
Korean Patent Laid-Open No. 10-2013-0061200 (curved glass fiber insulation and its manufacturing method) is known as a related technology.
본 발명은 기계적 가공 전에 바인더를 도포함으로서, 기계적 가공중에 최소한의 유리섬유의 부서짐이 방지할 수 있는 유리섬유 단열재 제조방법이 제공된다.The present invention provides a method of making a glass fiber insulation material that can prevent the breakage of a minimum of glass fibers during mechanical processing by applying a binder prior to mechanical processing.
또한, 기계적 가공이 끝난 후, 열처리를 통하여 유리섬유의 인장력을 증가시킬 뿐만 아니라, 분리된 유리섬유 가루들이 응집되고, 유리섬유에 부착됨으로써 가루날림을 최소화할 수 있는 유리섬유 단열재 제조방법을 제공하고자 한다.In addition, after the mechanical working, it is possible to provide a method for manufacturing a glass fiber insulation material which not only increases the tensile strength of the glass fiber through heat treatment but also agglomerates the separated glass fiber powder and adheres to the glass fiber, do.
본 발명의 일 측면에 따르면, According to an aspect of the present invention,
본 발명의 일 측면에 따르면,According to an aspect of the present invention,
(a) 유리섬유 원사에 바인더를 도포하는 단계;(a) applying a binder to a glass fiber yarn;
(b) 상기 유리섬유 원사를 니들 펀칭하여 펠트(felt)로 가공하는 단계;(b) needle-punching said glass fiber yarn into a felt;
(c) 상기 펠트에 열을 가해 상기 바인더를 경화시키는 단계;(c) curing the binder by applying heat to the felt;
를 포함하는 유리섬유 단열재 제조방법이 제공된다.
A method for manufacturing a glass fiber insulation material is provided.
또한,Also,
상기 (c) 공정은,The step (c)
섭씨 400도에서 30분간 진행되는 것을 특징으로 하는 유리섬유 단열재 제조방법이 제공된다.
Wherein the glass fiber-reinforced thermosetting material is heated at 400 DEG C for 30 minutes.
본 발명의 다른 측면에 따르면,According to another aspect of the present invention,
(d) 유리섬유 원사를 절단하는 단계;(d) cutting the glass fiber yarn;
(e) 상기 유리섬유 원사에 바인더를 도포하는 단계;(e) applying a binder to the glass fiber yarn;
(f) 상기 바인더가 도포 된 상기 유리섬유 원사를 18시간 동안 보관하는 단계;(f) storing the glass fiber yarn coated with the binder for 18 hours;
(g) 상기 유리섬유 원사를 분쇄하고 적층하는 단계;(g) crushing and laminating the glass fiber yarn;
(h) 상기 유리섬유 원사를 니들 펀칭하여 펠트(felt)로 가공하는 단계;(h) needle-punching the glass fiber yarn into a felt;
(i) 상기 펠트에 열을 가해 상기 바인더를 경화시키는 단계;(i) curing the binder by applying heat to the felt;
를 포함하는 유리섬유 단열재 제조방법이 제공된다.
A method for manufacturing a glass fiber insulation material is provided.
이상과 같이, 본 발명은 바인더가 반경화된 상태로 유리섬유에 도포하여, 기계적인 공정을 진행함으로써, 유리섬유의 부서짐을 최소로 할 수 있다.INDUSTRIAL APPLICABILITY As described above, the present invention can minimize the breakage of the glass fiber by applying the binder to the glass fiber in a semi-cured state and conducting a mechanical process.
또한, 본 발명은 후반 공정에서 바인더를 열로 완전히 경화시킴으로써, 유리섬유의 인장력을 강화시킬 수 있다.
Further, the present invention can enhance the tensile strength of the glass fiber by completely curing the binder in heat in the second step.
도 1은 본 발명의 일 실시예에 따른 유리섬유 단열재 제조방법의 순서도.
도 2는 본 발명의 다른 실시예에 따른 유리섬유 단열재 제조방법의 순서도.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method of manufacturing glass fiber insulation according to an embodiment of the present invention; FIG.
2 is a flow chart of a method for manufacturing glass fiber insulation according to another embodiment of the present invention.
이하에는, 본 발명의 바람직한 실시예를 첨부도면을 참조로 상세하게 설명하되, 이는 본 발명에 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로써 본 발명의 사상 및 범주가 한정되는 것을 의미하지는 않는다.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. , Thereby not limiting the spirit and scope of the present invention.
도 1은 본 발명의 일 실시예에 따른 유리섬유 단열재 제조방법의 순서도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method for manufacturing glass fiber insulation according to an embodiment of the present invention; FIG.
S 11은 유리섬유 원사에 바인더를 도포하는 단계이다. S 11 is a step of applying a binder to the glass fiber yarn.
유리섬유는 인장력이 약하여 외부 충격에 의해서 쉽게 부서진다. 추후의 기계적인 가공에 앞서 바인더를 유리섬유 원사에 도포함으로써, 가공중 유리섬유 원사가 부서지는 현상을 최소로 할 수 있다. Glass fiber is weak in tensile force and easily broken by external impact. It is possible to minimize the phenomenon that the glass fiber yarn is broken during processing by applying the binder to the glass fiber yarn prior to the subsequent mechanical processing.
바인더는 증점제 수용액과 접착제를 포함하여 구성된다. The binder comprises an aqueous solution of a thickener and an adhesive.
증점제 수용액 제조단계는 물 94~98중량%에 셀룰로오스계통의 수성분말 2~6중량%를 투입하여 용해하여 얻어진다. 이를 통하여 얻게 되는 증점제 수용액은 건조시 유리섬유 가루와 유리섬유의 결합력을 강화시켜 주게 되고 또 바인더의 점성을 유지시켜 주게 됨은 물론 접착력을 보완해 주게 된다.The step of preparing an aqueous solution of a thickener is obtained by adding 2 to 6% by weight of aqueous cellulose powder to 94 to 98% by weight of water and dissolving. The aqueous solution of the thickener obtained through this enhances the bonding force between the glass fiber and the glass fiber during drying, and maintains the viscosity of the binder and compensates the adhesive force.
한편, 접착제는 아크릴계 접착제를 일반적으로 사용한다. 아크릴계 접착제 용액 제조단계는 물 86~94중량%에 아크릴산 5.5~12.5중량% 및 과황산칼륨 0.5~1.5중량%를 투입한 뒤 중합반응시켜서 아크릴계 접착제를 얻도록 하기 위한 것으로서, 이를 통하여 얻게 되는 아크릴계 접착제 용액은 건조시 유리섬유 사이 또는, 유리섬유와 유리섬유 가루 사이의 접착을 위한 접착성을 지니도록 한다.On the other hand, an acrylic adhesive is generally used as the adhesive. The acrylic adhesive solution is prepared by adding 5.5 to 12.5% by weight of acrylic acid and 0.5 to 1.5% by weight of potassium persulfate to 86 to 94% by weight of water and then performing a polymerization reaction to obtain an acrylic adhesive. The solution has adhesion for bonding between glass fibers during drying or between glass fibers and glass fiber powder.
이러한 아크릴계 접착제 용액을 제조하기 위한 중합반응시에는 가열 및 냉각수단을 갖춘 회분식 교반형 반응기에 의해 약 55~59℃의 온도하에서 중합반응이 시작되게 하여 약 7~10분간 중합반응이 이루어지도록 하게 되는데, 이때 반응개시제인 과황산칼륨에 의해 중합반응이 시작될 시 시간이 갈수록 중합반응에 의해 내부온도가 급격히 상승하게 되고 또 이로 인하여 내부온도가 상시 70℃ 이상이 되면 물성변화에 의한 접착력 저하 및 고점도화로 인하여 원하는 접착력을 지닌 접착제를 얻을 수가 없게 되므로 반응시작 후에는 냉각수단을 가동시켜서 중합반응 중 70℃ 이하의 온도를 유지하도록 해 주어야만 정상적인 중합반응이 이루어질 수가 있게 된다.
During the polymerization reaction for producing such an acrylic adhesive solution, the polymerization reaction is started at a temperature of about 55 to 59 DEG C by a batch type stirred reactor equipped with a heating and cooling means, so that the polymerization reaction is performed for about 7 to 10 minutes In this case, the internal temperature rapidly increases due to the polymerization reaction as the polymerization reaction is started by the polymerization initiator initiated by the reaction initiator, and when the internal temperature is always 70 ° C or higher, the adhesion and the high viscosity It is impossible to obtain an adhesive having a desired adhesive strength. Therefore, after the start of the reaction, the cooling means is operated to maintain a temperature of 70 ° C or lower during the polymerization reaction, so that a normal polymerization reaction can be performed.
S 12는 상기 유리섬유 원사를 니들 펀칭하여 펠트(felt)로 가공하는 단계이다. 니들 펀칭을 통해서, 유리섬유 원사들이 서로 엉키게 하여 부피를 줄이는 과정이다. 니들 펀칭과정을 통해서 원하는 두께의 펠트를 가공할 수 있다. 특히, 이러한 니들 펀칭 과정에서 유리섬유 원사가 많이 부서지는 데, 본 실시에서는 바인더가 유리섬유 원사에 도포되어 있어서, 유리섬유 원사의 인장력을 보강한다. 따라서, 기계적인 니들 공정에서도 유리섬유 원사는 많이 부서지지 않는다.
S12 is a step of needle-punching the glass fiber yarn into a felt. Through the needle punching process, the glass fiber yarns are tangled together to reduce the volume. Through the needle punching process, a felt having a desired thickness can be processed. Particularly, in this needle punching process, a lot of glass fiber yarn is broken. In this embodiment, the binder is applied to the glass fiber yarn to reinforce the tensile force of the glass fiber yarn. Therefore, even in a mechanical needle process, the glass fiber yarn is not broken much.
S 13은 상기 펠트에 열을 가해 상기 바인더를 경화시키는 단계이다.S 13 is a step of applying heat to the felt to cure the binder.
바인더가 경화될 경우, 접착력은 최대가 된다. 본 공정을 거쳐, 유리섬유 원서 및 유리섬유 가루 등이 서로 결합되어 고착화 된다. 아울러, 유리섬유 표면에 바인더가 코팅됨으로써, 유리섬유의 인장력을 강화시킨다. 결과적으로 외부의 충격이나 변형이 있더라도, 펠트를 구성하는 유리섬유의 가루날림이 최소화된다.
When the binder is cured, the adhesive force becomes maximum. Through this step, the glass fiber base paper and the glass fiber powder are bonded to each other and fixed. In addition, the binder is coated on the surface of the glass fiber to enhance the tensile strength of the glass fiber. As a result, even if there is an external impact or deformation, the dusting of the glass fiber constituting the felt is minimized.
도 2는 본 발명의 다른 실시예에 따른 유리섬유 단열재 제조방법의 순서도이다.2 is a flowchart of a method of manufacturing glass fiber insulation according to another embodiment of the present invention.
S 21 유리섬유 원사를 절단하는 단계이다. 유리섬유 원사를 원하는 형태로 가공한 뒤, 절단한다.
S 21 Glass fiber yarn is cut. The glass fiber yarn is processed into a desired shape and then cut.
S 22는 상기 유리섬유 원사에 바인더를 도포하는 단계이다. 바인더를 유리섬유 원사 표면에 분사할 수도 있고, 유리섬유를 바인더 액에 함침시킨 뒤 들어올릴 수도 있다. 바인더는 접착제와 증점제 등의 혼합 용액이다. 바인더는 기계적인 충격에 대해서 유리섬유를 보호한다. 바인더는 아크릴계 접착제를 포함하여, 현재 사용될 수 있는 접착제는 어떤 것이라도 무방하다.
S22 is a step of applying a binder to the glass fiber yarn. The binder may be sprayed onto the surface of the glass fiber yarn, or the glass fiber may be impregnated with the binder solution and then lifted. The binder is a mixed solution of an adhesive and a thickener. The binder protects the glass fiber against mechanical shock. The binder includes an acrylic adhesive, and any adhesive that can be used at present can be used.
S 23은 상기 바인더가 도포된 상기 유리섬유 원사를 18시간 동안 보관하는 단계이다. 바인더가 유리섬유 표면에서 자연적으로 반경화되도록 하며, 함침된 바인더가 아래로 흘러내려, 추후 공정에서 바인더가 더 이상 흘러내리지 않도록 유리섬유 원사를 보관한다. 이때, 바인더는 18시간이 지나도 완전 경화가 되지 않는 것이 좋다.
S 23 is a step of storing the glass fiber yarn coated with the binder for 18 hours. The binder is allowed to naturally semi-cure on the glass fiber surface, and the impregnated binder flows down and the glass fiber yarn is kept so that the binder is no longer flowing down in a subsequent process. At this time, it is recommended that the binder does not completely cure after 18 hours.
S 24는 상기 유리섬유 원사를 분쇄하고 적층하는 단계이다. 펠트 형상을 위하여, 또한 원하는 두께와 무게를 맞추기 위하여 유리섬유 원사는 분쇄하고 적층된다.S 24 is a step of pulverizing and laminating the glass fiber yarn. For the felt shape, the glass fiber yarn is also pulverized and laminated to match the desired thickness and weight.
S 25는 상기 유리섬유 원사를 니들 펀칭하여 펠트(felt)로 가공하는 단계이다. 니들 장치는 위에서 아래로 작동하거나, 아래에서 위로 작동할 수도 있다. 위에서 아래로 작동하는 과정에서는 펠트의 두께 조절이 가능하고, 아래에서 위로 작동할 경우 인장력을 강화할 수 있다.
S25 is a step of needle-punching the glass fiber yarn and processing it into a felt. The needle device may operate from top to bottom, or from bottom to top. The thickness of the felt can be adjusted in the process of operating from top to bottom, and the tension can be enhanced when operating from the bottom up.
S 26은 상기 펠트에 열을 가해 상기 바인더를 경화시키는 단계이다. 섭씨 400도에서 30분 동안 노출되면, 바인더는 경화된다. 이때, 유리섬유 표면에 바인더가 완전히 경화되고 코팅됨으로써, 유리섬유의 인장력이 강화된다. 아울러, 유리섬유의 가루 등이 바인더와 함께 뭉쳐진 뒤, 유리섬유에 달라붙게 되어 가루날림이 발생하지 않게 된다.
S 26 is a step of applying heat to the felt to cure the binder. When exposed at 400 degrees Celsius for 30 minutes, the binder is cured. At this time, the binder is completely cured and coated on the surface of the glass fiber, whereby the tensile strength of the glass fiber is enhanced. In addition, the powder of the glass fiber or the like is bundled together with the binder, and then adheres to the glass fiber, so that the powder does not occur.
이상에서 본 발명의 실시예에 대해서 상세히 설명하였으나, 이는 하나의 실시예에 불과하며, 이로써 본 발명의 특허청구범위를 한정하는 것은 아니다. 본 실시예를 바탕으로 균등한 범위까지 당업자가 변형 및 추가하는 범위도 본 발명의 권리범위에 속한다 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Modifications and additions by those skilled in the art to an equivalent range based on the embodiments will also fall within the scope of the present invention.
없음 none
Claims (3)
(e) 상기 유리섬유 원사에 바인더를 도포하는 단계;
(f) 상기 바인더가 도포된 상기 유리섬유 원사를 18시간 동안 보관하는 단계;
(g) 상기 유리섬유 원사를 분쇄하고 적층하는 단계;
(h) 상기 유리섬유 원사를 니들 펀칭하여 펠트(felt)로 가공하는 단계;
(i) 상기 펠트에 열을 가해 상기 바인더를 경화시키는 단계;
를 포함하는 유리섬유 단열재 제조방법.
(d) cutting the glass fiber yarn;
(e) applying a binder to the glass fiber yarn;
(f) storing the glass fiber yarn coated with the binder for 18 hours;
(g) crushing and laminating the glass fiber yarn;
(h) needle-punching the glass fiber yarn into a felt;
(i) curing the binder by applying heat to the felt;
≪ / RTI >
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183269A (en) * | 2018-08-14 | 2019-01-11 | 苏州巨峰电气绝缘系统股份有限公司 | A kind of preparation method of thermal expansivity glass felt |
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|---|---|---|---|---|
| KR950009491B1 (en) * | 1992-07-09 | 1995-08-23 | 제일합섬주식회사 | Fiber reinforced composite resin forming sheet |
| JPH09316763A (en) * | 1996-05-30 | 1997-12-09 | Nippon Steel Chem Co Ltd | Production of fiber formed product |
| KR20130114777A (en) * | 2012-04-10 | 2013-10-21 | (주)엘지하우시스 | Insulation utilizing long glass fiber and its manufacturing method thereof |
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2014
- 2014-09-16 KR KR20140122662A patent/KR101478032B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950009491B1 (en) * | 1992-07-09 | 1995-08-23 | 제일합섬주식회사 | Fiber reinforced composite resin forming sheet |
| JPH09316763A (en) * | 1996-05-30 | 1997-12-09 | Nippon Steel Chem Co Ltd | Production of fiber formed product |
| KR20130114777A (en) * | 2012-04-10 | 2013-10-21 | (주)엘지하우시스 | Insulation utilizing long glass fiber and its manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183269A (en) * | 2018-08-14 | 2019-01-11 | 苏州巨峰电气绝缘系统股份有限公司 | A kind of preparation method of thermal expansivity glass felt |
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