CN105459533A - Glass fiber-polyimide fiber composite needled felt and manufacturing method thereof - Google Patents

Glass fiber-polyimide fiber composite needled felt and manufacturing method thereof Download PDF

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Publication number
CN105459533A
CN105459533A CN201410427704.7A CN201410427704A CN105459533A CN 105459533 A CN105459533 A CN 105459533A CN 201410427704 A CN201410427704 A CN 201410427704A CN 105459533 A CN105459533 A CN 105459533A
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Prior art keywords
fiber
glass fibre
polyimide fiber
felt
glass
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CN201410427704.7A
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Chinese (zh)
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徐珂
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徐珂
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Priority to CN201410427704.7A priority Critical patent/CN105459533A/en
Publication of CN105459533A publication Critical patent/CN105459533A/en
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Abstract

The invention relates to needled felt and discloses a glass fiber-polyimide fiber composite needled felt and a manufacturing method thereof. The structure of the glass fiber-polyimide fiber composite needled felt comprises, from top to bottom, a glass fiber composite layer, glass fiber base cloth and another glass fiber composite layer, wherein the upper and lower glass fiber composite layers are needled into the glass fiber base cloth, each glass fiber composite layer is a mixture of glass fiber and polyimide fiber mixed according a mass ratio of 70-90%: 30-10%, and the glass fiber base cloth is chopped glass fiber with a density of 420 g/m<2> or 280 to 300 g/m<2>. The invention provides the glass fiber-polyimide sulfide fiber composite needled felt prepared from glass fiber and having the advantages of low production cost, excellent corrosion resistance and good cohesive force, and the manufacturing method thereof. The manufactured felt has longer service life and better corrosion resistance compared with traditional needled felt.

Description

A kind of glass fibre and polyimide fiber compound spiked felt and manufacture method thereof
Technical field
The present invention relates to Nomex, particularly relate to a kind of glass fibre and polyimide fiber compound spiked felt and manufacture method thereof.
Background technology
Composite glass fiber punched felt is a kind of filtration sheet material of superior performance; the filter bag of different performance, different size is made into it; be widely applied in the product-collectings such as iron and steel blast furnace gas purification, the dedusting of cement kiln head kiln tail, silica flour production dedusting, boiler smoke dedusting etc., for outstanding contributions have been made in collection powder-product and environmental protection.
In prior art, direct compound glass fiber composite is made through combing etc., and dust removing effects does not get a desired effect, and causes the correlated characteristics such as cohesive force insuperior.
Summary of the invention
The present invention is directed to shortcoming of the prior art, provide a kind of glass fibre and polyimide fiber compound spiked felt and manufacture method thereof.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
A kind of glass fibre and polyimide fiber compound spiked felt, glass fibre and polyimide fiber compound spiked felt structure be from top to bottom successively: glass fiber composite, fiberglass-based cloth, glass fiber composite, glass fiber composite thrusts in fiberglass-based cloth up and down, glass fiber composite is the mixture of glass fibre and polyimide fiber, and in glass fiber composite, the mass ratio of glass fibre and polyimide fiber is as follows:
Glass fibre 70%-90%
Polyimide fiber 30%-10%
Wherein fiberglass-based cloth is 420g/m 2or 280-300g/m 2glass chopped silk.Glass fibre is a kind of Inorganic Non-metallic Materials of excellent performance, of a great variety, advantage is good insulating, heat resistance is strong, corrosion resistance good, mechanical strength is high, with glass marble or discarded glass for raw material becomes through high temperature melting, wire drawing, doff, the manufacture technics such as to weave cotton cloth, glass fibre is typically used as the reinforcing material in composite, electrically insulating material and heat-insulating material.Glass fibre fusing point 680 DEG C, boiling point 1000 DEG C, density 2.4 ~ 2.7g/cm 3, glass fibre as reinforced plastics supporting material application time, maximum feature is that tensile strength is large; Tensile strength is 6.3 ~ 6.9g/d in normal conditions, moisture state 5.4 ~ 5.8g/d.Density 2.54; Good heat resistance, does not affect intensity when temperature reaches 300 DEG C; Having excellent electrical insulating property, is senior electrically insulating material, also for heat-insulating material and fire-proof shield material.Polyimide fiber is as the filtering material of high-temperature medium and radioactive substance and shellproof, fire-proof fabric.
A manufacture method for glass fibre and polyimide fiber compound spiked felt, comprises the following steps:
Step one: mixing; Utilize opener and mixture griping cotton machine by the glass fibre under normality and polyimide fiber garnetting, play pine and removal of impurities, and by glass fibre together with polyimide fiber Homogeneous phase mixing, form composite fibre;
Step 2: shredding; Used by the composite fibre mixed opener by further for fiber garnetting, play pine and removal of impurities, make mixed fiber become cotton-shaped, fluffy glass fibre and polyimide fiber mixture;
Step 3: smart shredding; Again by the mixture garnetting mixed, beat pine and removal of impurities, by mixture shredding to not being wound around between glass fibre and the monfil of polyimide fiber and having gap;
Step 4: feeding; The glass fibre of smart shredding and polyimide fiber are fed in cotton feeder, utilize Electronic Control weighing instruments to control the weight of feeding glass fibre and polyimide fiber, and combed into carding process;
Step 5: combing; Glass fibre in step 4 and polyimide fiber are carded to the staggered net of certain thickness radial broadwise by carding machine, realize being connected between net with net, carry out orderly arrangement between different classes of fiber;
Step 6: lapping; Flush system lapping machine is utilized net good for combing evenly, reciprocally to be tiled 8-12 layers in fiberglass-based cloth two side;
Step 7: pre-needling; Net and fiberglass-based cloth are made to be cross-linked between net and fiberglass-based cloth after acupuncture, forms the mixture of three-dimensional structure;
Step 8: main acupuncture; Utilize 5-6 platform high frequency needle punching machine, take dystopy to the mode of thorn, use mold pressing pricker three pricker, by reciprocal for fiber acupuncture, occlusion, formed between fiber from obvolvent, to reach the three-dimensional structure thorn felt blank mixture of high strength, low elongation;
Step 9: sizing; The three-dimensional structure thorn felt blank mixture that step 8 is completed, mechanical type imports the high temperature oven of 220-260 DEG C, and 180-190s is dried in training, then through naturally cooling, forms the setting three-dimensional structure thorn felt of dimensionally stable;
Step 10: calendering of singing; The fiber filoplume wadding on surface burnt by three-dimensional structure thorn felt step 9 completed by naked light, allow three-dimensional structure sting felt and form smooth surface;
Step 11: post processing; By the three-dimensional structure thorn felt through high-temperature shaping, infiltrate in the mixing materials such as polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol, through dipping, coating, writing that surpasses all the others, import the high temperature oven of 220-260 DEG C again, 240-290s is dried in training, finally obtains glass fibre and polyimide fiber compound spiked felt.
As preferably, the Main Ingredients and Appearance of the adhesive in step 11 is acrylic resin.
As preferably, in step 11, mixing material polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol are (40 ~ 60) according to mass ratio: (20 ~ 30): (20 ~ 30).
The present invention, owing to have employed above technical scheme, has significant technique effect:
The invention provides one utilizes glass fibre for raw material, and production cost is low, the glass fibre that corrosion resistance is superior, cohesive force is strong and polyimide fiber compound spiked felt and manufacture method thereof; In traditional processing technology, can waste raw material while production, produce rubbish, this production method is made full use of by the silica material that china natural resources is abundant, not only turns waste into wealth, saved resource, also inorfil and organic fiber are combined simultaneously, be applied in protection of the environment aspect; The present invention is longer than the needled conventionally felt life-span, and corrosion resistance is good.
Accompanying drawing explanation
Fig. 1 is resistance curve of the present invention;
Measurement of Counting Efficiencies curve when Fig. 2 is v=1.44m/min of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1
A kind of glass fibre and polyimide fiber compound spiked felt, glass fibre and polyimide fiber compound spiked felt structure be from top to bottom successively: glass fiber composite, fiberglass-based cloth, glass fiber composite, glass fiber composite thrusts in fiberglass-based cloth up and down, glass fiber composite is the mixture of glass fibre and polyimide fiber, and in glass fiber composite, the mass ratio of glass fibre and polyimide fiber is as follows:
Glass fibre 70%
Polyimide fiber 30%
Wherein fiberglass-based cloth is 420g/m 2glass chopped silk.
A manufacture method for glass fibre and polyimide fiber compound spiked felt, comprises the following steps:
Step one: mixing; Utilize opener and mixture griping cotton machine by the glass fibre under normality and polyimide fiber garnetting, play pine and removal of impurities, and by glass fibre together with polyimide fiber Homogeneous phase mixing, form composite fibre;
Step 2: shredding; Used by the composite fibre mixed opener by further for fiber garnetting, play pine and removal of impurities, make mixed fiber become cotton-shaped, fluffy glass fibre and polyimide fiber mixture;
Step 3: smart shredding; Again by the mixture garnetting mixed, beat pine and removal of impurities, by mixture shredding to not being wound around between glass fibre and the monfil of polyimide fiber and having gap;
Step 4: feeding; The glass fibre of smart shredding and polyimide fiber are fed in cotton feeder, utilize Electronic Control weighing instruments to control the weight of feeding glass fibre and polyimide fiber, and combed into carding process;
Step 5: combing; Glass fibre in step 4 and polyimide fiber are carded to the staggered net of certain thickness radial broadwise by carding machine, realize being connected between net with net, carry out orderly arrangement between different classes of fiber;
Step 6: lapping; Utilize flush system lapping machine that net good for combing evenly, is reciprocally tiled 8 layers in fiberglass-based cloth two side;
Step 7: pre-needling; Net and fiberglass-based cloth are made to be cross-linked between net and fiberglass-based cloth after acupuncture, forms the mixture of three-dimensional structure;
Step 8: main acupuncture; Utilize 5 high frequency needle punching machines, take dystopy to the mode of thorn, use mold pressing pricker three pricker, by reciprocal for fiber acupuncture, occlusion, formed between fiber from obvolvent, to reach the three-dimensional structure thorn felt blank mixture of high strength, low elongation;
Step 9: sizing; The three-dimensional structure thorn felt blank mixture that step 8 is completed, mechanical type imports the high temperature oven of 220 DEG C, and 180s is dried in training, then through naturally cooling, forms the setting three-dimensional structure thorn felt of dimensionally stable;
Step 10: calendering of singing; The fiber filoplume wadding on surface burnt by three-dimensional structure thorn felt step 9 completed by naked light, allow three-dimensional structure sting felt and form smooth surface;
Step 11: post processing; By the three-dimensional structure thorn felt through high-temperature shaping, infiltrate in the mixing materials such as polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol, through dipping, coating, writing that surpasses all the others, then import the high temperature oven of 220 DEG C, 240s is dried in training, finally obtains glass fibre and polyimide fiber compound spiked felt.
The Main Ingredients and Appearance of the adhesive in step 11 is acrylic resin.In step 11, mixing material polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol are 40:30:30 according to mass ratio.
Embodiment 2
A kind of glass fibre and polyimide fiber compound spiked felt, glass fibre and polyimide fiber compound spiked felt structure be from top to bottom successively: glass fiber composite, fiberglass-based cloth, glass fiber composite, glass fiber composite thrusts in fiberglass-based cloth up and down, glass fiber composite is the mixture of glass fibre and polyimide fiber, and in glass fiber composite, the mass ratio of glass fibre and polyimide fiber is as follows:
Glass fibre 90%
Polyimide fiber 10%
Wherein fiberglass-based cloth is 280g/m 2glass chopped silk.
A manufacture method for glass fibre and polyimide fiber compound spiked felt, comprises the following steps:
Step one: mixing; Utilize opener and mixture griping cotton machine by the glass fibre under normality and polyimide fiber garnetting, play pine and removal of impurities, and by glass fibre together with polyimide fiber Homogeneous phase mixing, form composite fibre;
Step 2: shredding; Used by the composite fibre mixed opener by further for fiber garnetting, play pine and removal of impurities, make mixed fiber become cotton-shaped, fluffy glass fibre and polyimide fiber mixture;
Step 3: smart shredding; Again by the mixture garnetting mixed, beat pine and removal of impurities, by mixture shredding to not being wound around between glass fibre and the monfil of polyimide fiber and having gap;
Step 4: feeding; The glass fibre of smart shredding and polyimide fiber are fed in cotton feeder, utilize Electronic Control weighing instruments to control the weight of feeding glass fibre and polyimide fiber, and combed into carding process;
Step 5: combing; Glass fibre in step 4 and polyimide fiber are carded to the staggered net of certain thickness radial broadwise by carding machine, realize being connected between net with net, carry out orderly arrangement between different classes of fiber;
Step 6: lapping; Utilize flush system lapping machine that net good for combing evenly, is reciprocally tiled 12 layers in fiberglass-based cloth two side;
Step 7: pre-needling; Net and fiberglass-based cloth are made to be cross-linked between net and fiberglass-based cloth after acupuncture, forms the mixture of three-dimensional structure;
Step 8: main acupuncture; Utilize 6 high frequency needle punching machines, take dystopy to the mode of thorn, use mold pressing pricker three pricker, by reciprocal for fiber acupuncture, occlusion, formed between fiber from obvolvent, to reach the three-dimensional structure thorn felt blank mixture of high strength, low elongation;
Step 9: sizing; The three-dimensional structure thorn felt blank mixture that step 8 is completed, mechanical type imports the high temperature oven of 260 DEG C, and 190s is dried in training, then through naturally cooling, forms the setting three-dimensional structure thorn felt of dimensionally stable;
Step 10: calendering of singing; The fiber filoplume wadding on surface burnt by three-dimensional structure thorn felt step 9 completed by naked light, allow three-dimensional structure sting felt and form smooth surface;
Step 11: post processing; By the three-dimensional structure thorn felt through high-temperature shaping, infiltrate in the mixing materials such as polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol, through dipping, coating, writing that surpasses all the others, then import the high temperature oven of 260 DEG C, 290s is dried in training, finally obtains glass fibre and polyimide fiber compound spiked felt.
The Main Ingredients and Appearance of the adhesive in step 11 is acrylic resin.In step 11, mixing material polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol are 60:20:20 according to mass ratio.
Embodiment 3
A kind of glass fibre and polyimide fiber compound spiked felt, glass fibre and polyimide fiber compound spiked felt structure be from top to bottom successively: glass fiber composite, fiberglass-based cloth, glass fiber composite, glass fiber composite thrusts in fiberglass-based cloth up and down, glass fiber composite is the mixture of glass fibre and polyimide fiber, and in glass fiber composite, the mass ratio of glass fibre and polyimide fiber is as follows:
Glass fibre 80%
Polyimide fiber 20%
Wherein fiberglass-based cloth is 290g/m 2glass chopped silk.
A manufacture method for glass fibre and polyimide fiber compound spiked felt, comprises the following steps:
Step one: mixing; Utilize opener and mixture griping cotton machine by the glass fibre under normality and polyimide fiber garnetting, play pine and removal of impurities, and by glass fibre together with polyimide fiber Homogeneous phase mixing, form composite fibre;
Step 2: shredding; Used by the composite fibre mixed opener by further for fiber garnetting, play pine and removal of impurities, make mixed fiber become cotton-shaped, fluffy glass fibre and polyimide fiber mixture;
Step 3: smart shredding; Again by the mixture garnetting mixed, beat pine and removal of impurities, by mixture shredding to not being wound around between glass fibre and the monfil of polyimide fiber and having gap;
Step 4: feeding; The glass fibre of smart shredding and polyimide fiber are fed in cotton feeder, utilize Electronic Control weighing instruments to control the weight of feeding glass fibre and polyimide fiber, and combed into carding process;
Step 5: combing; Glass fibre in step 4 and polyimide fiber are carded to the staggered net of certain thickness radial broadwise by carding machine, realize being connected between net with net, carry out orderly arrangement between different classes of fiber;
Step 6: lapping; Utilize flush system lapping machine that net good for combing evenly, is reciprocally tiled 10 layers in fiberglass-based cloth two side;
Step 7: pre-needling; Net and fiberglass-based cloth are made to be cross-linked between net and fiberglass-based cloth after acupuncture, forms the mixture of three-dimensional structure;
Step 8: main acupuncture; Utilize 6 high frequency needle punching machines, take dystopy to the mode of thorn, use mold pressing pricker three pricker, by reciprocal for fiber acupuncture, occlusion, formed between fiber from obvolvent, to reach the three-dimensional structure thorn felt blank mixture of high strength, low elongation;
Step 9: sizing; The three-dimensional structure thorn felt blank mixture that step 8 is completed, mechanical type imports the high temperature oven of 240 DEG C, and 180-190s is dried in training, then through naturally cooling, forms the setting three-dimensional structure thorn felt of dimensionally stable;
Step 10: calendering of singing; The fiber filoplume wadding on surface burnt by three-dimensional structure thorn felt step 9 completed by naked light, allow three-dimensional structure sting felt and form smooth surface;
Step 11: post processing; By the three-dimensional structure thorn felt through high-temperature shaping, infiltrate in the mixing materials such as polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol, through dipping, coating, writing that surpasses all the others, then import the high temperature oven of 240 DEG C, 250s is dried in training, finally obtains glass fibre and polyimide fiber compound spiked felt.
The Main Ingredients and Appearance of the adhesive in step 11 is acrylic resin.In step 11, mixing material polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol are 50:25:25 according to mass ratio.
The main Testing index (GB12625-2007) of above-mentioned three examples is:
The filter efficiency detection curve of above-mentioned three examples is
1, the drag characteristic of clean filtrate
Wind speed (m/min) 1 2 3 4 5
Resistance (Pa) 10.3 21.0 31.1 42.7 52.3
2, filtration experiment
Data collected by the experiment done when here is filtration velocity v=1.44m/min:
Particle diameter (μm) 0.3 0.5 1 3 5 10
Efficiency (%) 33.75 54.83 84.59 95.74 96.65 97.77
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (4)

1. a glass fibre and polyimide fiber compound spiked felt, it is characterized in that described glass fibre and polyimide fiber compound spiked felt structure from top to bottom successively: glass fiber composite, fiberglass-based cloth, glass fiber composite, glass fiber composite thrusts in fiberglass-based cloth up and down, glass fiber composite is the mixture of glass fibre and polyimide fiber, and in glass fiber composite, the mass ratio of glass fibre and polyimide fiber is as follows:
Glass fibre 70%-90%
Polyimide fiber 30%-10%
Wherein fiberglass-based cloth is 420g/m 2or 280-300g/m 2glass chopped silk.
2. the glass fibre of claim 1 and a manufacture method for polyimide fiber compound spiked felt, is characterized in that comprising the following steps:
Step one: mixing; Utilize opener and mixture griping cotton machine by the glass fibre under normality and polyimide fiber garnetting, play pine and removal of impurities, and by glass fibre together with polyimide fiber Homogeneous phase mixing, form composite fibre;
Step 2: shredding; Used by the composite fibre mixed opener by further for fiber garnetting, play pine and removal of impurities, make mixed fiber become cotton-shaped, fluffy glass fibre and polyimide fiber mixture;
Step 3: smart shredding; Again by the mixture garnetting mixed, beat pine and removal of impurities, by mixture shredding to not being wound around between glass fibre and the monfil of polyimide fiber and having gap;
Step 4: feeding; The glass fibre of smart shredding and polyimide fiber are fed in cotton feeder, utilize Electronic Control weighing instruments to control the weight of feeding glass fibre and polyimide fiber, and combed into carding process;
Step 5: combing; Glass fibre in step 4 and polyimide fiber are carded to the staggered net of certain thickness radial broadwise by carding machine, realize being connected between net with net, carry out orderly arrangement between different classes of fiber;
Step 6: lapping; Flush system lapping machine is utilized net good for combing evenly, reciprocally to be tiled 8-12 layers in fiberglass-based cloth two side;
Step 7: pre-needling; Net and fiberglass-based cloth are made to be cross-linked between net and fiberglass-based cloth after acupuncture, forms the mixture of three-dimensional structure;
Step 8: main acupuncture; Utilize 5-6 platform high frequency needle punching machine, take dystopy to the mode of thorn, use mold pressing pricker three pricker, by reciprocal for fiber acupuncture, occlusion, formed between fiber from obvolvent, to reach the three-dimensional structure thorn felt blank mixture of high strength, low elongation;
Step 9: sizing; The three-dimensional structure thorn felt blank mixture that step 8 is completed, mechanical type imports the high temperature oven of 220-260 DEG C, and 180-190s is dried in training, then through naturally cooling, forms the setting three-dimensional structure thorn felt of dimensionally stable;
Step 10: calendering of singing; The fiber filoplume wadding on surface burnt by three-dimensional structure thorn felt step 9 completed by naked light, allow three-dimensional structure sting felt and form smooth surface;
Step 11: post processing; By the three-dimensional structure thorn felt through high-temperature shaping, infiltrate in the mixing materials such as polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol, through dipping, coating, writing that surpasses all the others, import the high temperature oven of 220-260 DEG C again, 240-290s is dried in training, finally obtains glass fibre and polyimide fiber compound spiked felt.
3. the manufacture method of glass fibre according to claim 2 and polyimide fiber compound spiked felt, is characterized in that: the Main Ingredients and Appearance of the adhesive in step 11 is acrylic resin.
4. the manufacture method of glass fibre according to claim 2 and polyimide fiber compound spiked felt, is characterized in that: in step 11, mixing material polytetrafluoroethyldispersion dispersion, adhesive, industrial alcohol are (40 ~ 60) according to mass ratio: (20 ~ 30): (20 ~ 30).
CN201410427704.7A 2014-08-27 2014-08-27 Glass fiber-polyimide fiber composite needled felt and manufacturing method thereof Pending CN105459533A (en)

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CN201410427704.7A CN105459533A (en) 2014-08-27 2014-08-27 Glass fiber-polyimide fiber composite needled felt and manufacturing method thereof

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111592908A (en) * 2019-02-20 2020-08-28 中国石油化工股份有限公司 Oil slurry filtering system and oil slurry filtering method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571055A (en) * 1991-09-06 1993-03-23 Ichikawa Woolen Textile Co Ltd Heat resistant filter cloth
CN1404898A (en) * 2001-08-15 2003-03-26 余国藩 Compound spiked felt of purifying industrial smoke and its producing method
CN103550985A (en) * 2013-11-05 2014-02-05 中材科技股份有限公司 High-air permeability non-woven fabric laminated filtering material and preparation method thereof as well as laminating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571055A (en) * 1991-09-06 1993-03-23 Ichikawa Woolen Textile Co Ltd Heat resistant filter cloth
CN1404898A (en) * 2001-08-15 2003-03-26 余国藩 Compound spiked felt of purifying industrial smoke and its producing method
CN103550985A (en) * 2013-11-05 2014-02-05 中材科技股份有限公司 High-air permeability non-woven fabric laminated filtering material and preparation method thereof as well as laminating device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
冯学本: "《针刺法非织造布工艺技术与质量控制》", 31 October 2008, 中国纺织出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111592908A (en) * 2019-02-20 2020-08-28 中国石油化工股份有限公司 Oil slurry filtering system and oil slurry filtering method

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Application publication date: 20160406