CN1515723A - Preparation method of glass fiber thin felt - Google Patents
Preparation method of glass fiber thin felt Download PDFInfo
- Publication number
- CN1515723A CN1515723A CNA031528422A CN03152842A CN1515723A CN 1515723 A CN1515723 A CN 1515723A CN A031528422 A CNA031528422 A CN A031528422A CN 03152842 A CN03152842 A CN 03152842A CN 1515723 A CN1515723 A CN 1515723A
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- slurry
- felt
- glass chopped
- glass fiber
- chopped silk
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims description 18
- 239000002002 slurry Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000002270 dispersing agent Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 23
- 239000002562 thickening agent Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000007598 dipping method Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 38
- 239000013530 defoamer Substances 0.000 claims description 20
- 239000000839 emulsion Substances 0.000 claims description 15
- 238000007792 addition Methods 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 14
- 230000018044 dehydration Effects 0.000 claims description 13
- 238000006297 dehydration reaction Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000009955 starching Methods 0.000 claims description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 9
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 8
- 239000011118 polyvinyl acetate Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 6
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000010426 asphalt Substances 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000010292 electrical insulation Methods 0.000 abstract description 2
- 239000011152 fibreglass Substances 0.000 abstract description 2
- 239000011888 foil Substances 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 4
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- Paper (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a method for preparing a glass fiber short cut thin felt by a wet papermaking forming technology, which comprises the steps of preparing glass fiber short cut, water, a chemical additive and an organic binder by slurry, sizing and forming, forming and dehydrating, dipping and sizing, and drying to obtain a glass fiber short cut thin felt, wherein the diameter of the glass fiber short cut is 5-20 mu m, and the length of the glass fiber short cut is 5-20 mm; the chemical auxiliary agent is as follows: the addition amount of the thickening agent, the dispersing agent and the defoaming agent in the slurry is determined by the performance of the slurry; the thin felt obtained by the invention has the advantages of high strength, light weight, corrosion resistance, excellent electrical insulation performance, small water absorption, good bonding performance with resin and asphalt and the like, the weight of the thin felt can reach 30-120 g per square meter, and the thin felt can be used as a copper-clad foil plate substrate, an asphalt waterproof material substrate, a storage battery separator substrate, a glass fiber reinforced plastic surface felt, a pipeline coating felt, a carpet felt substrate and the like.
Description
Technical field:
The present invention relates to a kind of manufacture method of glass fibre mat.
Background technology:
Known glass chopped silk mat is that the continuous glass fibre silk is cut into short silk, glass chopped silk laying is formed the blanket shape, binding agent with Powdered or emulsion state gets up it bonding again, and be pressed into finished product, and its thickness is more than 0.5mm, and the mat that this method obtained is more rudimentary, wall thickness is not only thick, and uniformity is not high, is difficult to satisfy people's new demand, and this has just fettered the Application Areas of glass fibre mat.
Summary of the invention:
The object of the present invention is to provide a kind of production method of glass chopped silk mat;
The preparation method of glass chopped mat of the present invention uses the wet papermaking forming technique that glass chopped silk, water, chemical assistant and the preparation of organic binder bond process slurry, starching shaping, shaping are dewatered, flooded gluing and baking step, obtains glass chopped silk mat.The diameter of described glass chopped silk is 5～20 μ m, length 5～20mm; Described chemical assistant is: thickener, dispersant, defoamer, and their additions in slurry are by the performance decision of slurry, and are specific as follows:
The addition of thickener: make the viscosity of slurry reach 8CP～10CP;
The concentration of dispersant is in the slurry: 80ppm～100ppm;
The addition of defoamer: make the air content in the slurry be controlled at 4%～10%;
Dipping gluing used organic binder bond is the mixed liquor of any and coupling agent KH560 in polyvinyl acetate emulsion, acrylic emulsion, the thermosetting acrylate, and their content in mat is less than 30%.
The slurry preparation:
Glass chopped silk, plain boiled water are added evenly stirring in the stirring pool, and the content of glass chopped silk is: 0.1%～0.3% (weight); The viscosity of slurry is 8CP～10CP; PH value is 6～8; Air content is 4%～10%; Described plain boiled water is made up of pure water, thickener, dispersant and defoamer, and the addition of thickener is to make the viscosity of plain boiled water reach 8CP～12CP for well;
The content of dispersant in plain boiled water is 80ppm～100ppm;
The addition of defoamer is to make air content in the plain boiled water be controlled at 4%～10% to be as the criterion.
Starching is shaped:
Prepared slurry is sent into the slurry distributor by stock control valve and an amount of plain boiled water after the dilution of flow box pump, after the homogenate of slurry distributor, send into flow box, have ladder anemostat and orifice plate that slurry is carried out laterally evenly cloth slurry in the flow box, the shaping guipure that the glass chopped silk in the slurry is moved is continuously taken away.
Dehydration is shaped:
From the evenly dehydration on the guipure that tilts of the uniform slurry of flow box, glass chopped silk is evenly distributed in and forms wet felt on the guipure, and it is more to contain moisture in the wet felt, through the dehydration of twice forced dehydration case, yet is sent to impregnator;
The dipping gluing:
The wet felt of glass fibre is sent into impregnator, the adhesive special for preparing is delivered in the overflow adhesive applicator of applying glue guipure top through membrane pump, the binding agent that flows down from the overflow adhesive applicator is soaked on the wet felt of glass fibre saturatedly, unnecessary binding agent is taken out method by suction box, comes back in the circulation glue jar after knockout drum separates.
Oven dry is batched:
Adopt hot blast penetration convection furnace drying method.
Because the present invention adopts similar wet papermaking technology to carry out the production of glass chopped silk mat, it is to be main raw material with glass chopped silk, evenly stir in pure water with an amount of chemical assistant, be mixed with slurry, be shaped through starching again, dehydration is shaped, flood gluing with adhesive special, drying working procedure processing such as is batched and is formed, it has the intensity height, light weight, corrosion-resistant, electrical insulation capability is good, water absorption rate is little, with resin, advantages such as the pitch adhesive property is good, it is 30g～120g that the weight of mat can reach every Gram Mass, can be used as the copper coated foil plate base material, asphalt waterproofing material base material, the battery separator base material, the glass fiber reinforced plastic surface felt, pipeline coats the base material of felt and carpet felt etc., raw material that the present invention is used and chemicals are market and easily purchase commodity, and be in liberal supply.
Description of drawings
Fig. 1 is the technological process of production figure of glass chopped silk mat;
Fig. 2 is the process chart of preparation slurry;
Fig. 3 is the preparation process figure of dispersant;
Fig. 4 is the preparation process figure of thickener;
Fig. 5 is the preparation process figure of defoamer;
Fig. 6 is the adhesive preparation process chart;
Fig. 7 is a starching forming technology flow chart;
Fig. 8 is a white water loop system flow chart of the present invention;
The specific embodiment:
The method applied in the present invention is the wet-formed technical scheme of similar paper, and it comprises that slurry preparation, starching are shaped, shaping is dewatered, flood gluing and oven dry is batched, and its production procedure is continuous, the operation simultaneously of each workshop section.
The technological process such as the accompanying drawing 1 of the production method of glass chopped silk mat of the present invention.
Embodiment 1:
The preparation slurry:
To stir in glass chopped silk and the plain boiled water adding stirring pool, the concentration of the short chopping of glass is 0.1%, described glass chopped filament diameter is 9 μ m, length 6mm, contain thickener, dispersant, defoamer in the plain boiled water, in pure water, add thickener, dispersant and defoamer, make the viscosity of plain boiled water reach 8CP; The concentration of dispersant is 80ppm in the plain boiled water; Air content in the plain boiled water is controlled at 6%; Described thickener is that hydroxyethylcellulose is that commodity are easily purchased in market, and its outward appearance is: white powder or white sand shape particle, viscosity 4000～6000mpas, moisture≤5%; Ash content≤10%; Light transmittance 〉=95%;
Described dispersant is the aliphatic acid condensation polymer, is the direct dispersant of artificial staple fiber of adhesive-bonded fabric, also is that commodity are easily purchased in market, and its outward appearance is: the liquid that white, available pump are taken out; PH value 4; Viscosity (20 ℃) 2000mpas dilution property: available water is diluted fully by arbitrary proportion.
Described defoamer is Agitan295, and it also is that commodity are easily purchased in market; Its outward appearance is: the light yellow liquid medium-viscosity, and pH value (2% water liquid) is 6; Active matter content: 100%; Proportion (25 ℃): 0.95g/cm
3, flash-point: 140 ℃, dissolubility in the water, soluble in water, be light yellow emulsion liquid.The process chart accompanying drawing 2 of slurrying.
Starching is shaped:
Above-mentioned prepared slurry after diluting 10 times, the flow box pump is sent into the slurry distributor with an amount of plain boiled water by stock control valve, the slurry distributor is an oblate spheroid, be provided with tens of grout outlets on every side, after the homogenate of slurry distributor, send into flow box, there are ladder anemostat and orifice plate that slurry is carried out laterally evenly cloth slurry in the flow box, the shaping guipure that glass chopped silk in the slurry is moved is continuously taken away, and send next procedure.Accompanying drawing 3 is seen in the technological process that starching is shaped.
Dehydration is shaped:
From the evenly dehydration on the guipure that tilts of the uniform slurry of flow box, glass chopped silk is evenly distributed in and forms wet felt on the guipure, it is more to contain moisture in the wet felt, remove redundant moisture through twice forced dehydration case, be sent to impregnator then, the horizontal uniformity of wet felt can realize that the dehydration width can be regulated by two plate washers of dewatering box by the orifice plate control dewatering speed of regulating dewatering box.
The dipping gluing:
The wet felt of glass fibre is sent into impregnator, adhesive special is controled flow in the circulating slot by floating-ball level switch, deliver to the overflow adhesive applicator of applying glue guipure top through membrane pump, binding agent under the adhesive applicator overflow is immersed on the wet felt saturatedly, unnecessary binding agent is taken out by the twice suction box, comes back in the circulation glue groove after knockout drum separates.The content and the speed of production of binding agent in the glass fibre wet method mat, sizing material concentration is relevant with aspiration vacuum level, and binder content is realized by Artificial Control suction box vacuum in the final products.
Described organic binder bond is the mixed liquor of polyvinyl acetate emulsion and coupling agent KH560, and they are market and easily purchase commodity, and wherein polyvinyl acetate emulsion is 80%, KH560 coupling agent 20%; The content of binding agent in mat is 15%.
Oven dry is batched:
Hot blast penetration convection drying mode is adopted in oven dry, drying oven is by a preheating zone, four baking and curing districts form, each district is all by a circulating fan and diesel fuel burner, and the temperature in each district can independently be controlled, and the moisture in each district is concentrated by a typhoon machine and discharged. and bake out temperature passes through computer controlled automatic, on the fan housing up and down of drying oven, evenly offer a lot of apertures, guarantee that hot blast blows on the felt face equably, according to the different in width of product, the drying oven both sides are provided with the adjusting aerofoil.
Embodiment 2:
The preparation slurry:
To stir in glass chopped silk and the plain boiled water adding stirring pool, the concentration of the short chopping of glass is 0.2%, and described glass chopped filament diameter is 10 μ m, length 10mm, contain thickener, dispersant, defoamer in the plain boiled water, the addition of thickener is so that the viscosity of plain boiled water reaches 10CP; The concentration of dispersant is 90ppm in the plain boiled water; The addition of defoamer makes the air content in the plain boiled water be controlled at 8%; Described organic binder bond is the mixed liquor of acrylic emulsion and coupling agent (KH560), and their content in mat is 12%.
Described thickener is a hydroxyethylcellulose; Described dispersant is the aliphatic acid condensation polymer, is the direct dispersant of artificial staple fiber of adhesive-bonded fabric; Described defoamer is Agitan295;
Starching be shaped, be shaped dehydration, dipping gluing gone into oven dry and batched identically with embodiment 1, is that described binding agent is made up of acrylic emulsion and coupling agent (KH560), and its percentage by weight is:
Acrylic emulsion is 80%, coupling agent (KH560) 20%.
Embodiment 3:
The preparation slurry:
To stir in glass chopped silk and the plain boiled water adding stirring pool, the concentration of the short chopping of glass is 0.3%, and described glass chopped filament diameter is 10 μ m, length 13mm, contain thickener, dispersant, defoamer in the plain boiled water, the addition of thickener is so that the viscosity of plain boiled water reaches 9CP; The concentration of dispersant is 100ppm in the plain boiled water; The addition of defoamer makes the air content in the plain boiled water be controlled at 8%; Described organic binder bond is the mixed liquor of thermosetting acrylate and coupling agent (KH560), and their content in mat is 20%.
Described thickener is a hydroxyethylcellulose; Described dispersant is the aliphatic acid condensation polymer; Described defoamer is Agitan295;
Starching is shaped, shaping is dewatered, the dipping gluing is batched identical with embodiment 1 with oven dry, be that described binding agent is made up of thermosetting acrylate and coupling agent (KH560), its percentage by weight is: polyvinyl acetate emulsion is 80%, coupling agent (KH560) 20%.
Embodiment 4:
The preparation slurry:
To stir in glass chopped silk and the plain boiled water adding stirring pool, the concentration of the short chopping of glass is 0.2%, and described glass chopped filament diameter is 10 μ m, length 3mm, contain thickener, dispersant, defoamer in the plain boiled water, the addition of thickener is so that the viscosity of plain boiled water reaches 10CP; The concentration of dispersant is 85ppm in the plain boiled water; The addition of defoamer makes the air content in the plain boiled water be controlled at 8%; Described organic binder bond is the mixed liquor of polyvinyl acetate emulsion and coupling agent (KH560), and their content in mat is 5%.
Described thickener is a hydroxyethylcellulose, and described dispersant is the aliphatic acid condensation polymer, and described defoamer is Agitan295;
Starching shaping, the dehydration that is shaped, dipping gluing and oven dry are batched identical with embodiment 1, are that described binding agent is made up of polyvinyl acetate emulsion and coupling agent (KH560), and its percentage by weight is: polyvinyl acetate emulsion is 90%; Coupling agent (KH560) 10%.
Claims (2)
1, a kind of preparation method of glass chopped silk mat, it is characterized in that: glass chopped silk, plain boiled water are mixed with slurry with the wet papermaking forming technique, with the slurry that is mixed with through starching be shaped, be shaped dewater the wet felt of glass fibre, with organic binder bond the wet felt of glass fibre is flooded gluing, then its oven dry is promptly obtained glass chopped silk mat, the diameter of described glass chopped silk is 5～20 μ m, length 5～20mm; Described plain boiled water is mixed by pure water, thickener, dispersant, defoamer, and their additions in plain boiled water are decided by the default capabilities of slurry, and specific requirement is as follows:
The addition of thickener: make the viscosity of slurry reach 8CP～12CP and be as the criterion;
The concentration of dispersant in slurry is: 80ppm～100ppm;
The addition of defoamer: make the air content in the slurry be controlled at 4%～10%;
Described organic binder bond is the mixed liquor of any and coupling agent KH560 in polyvinyl acetate emulsion, acrylic emulsion, the thermosetting acrylate, and wherein the content of coupling agent KH560 is 1%～30%;
Described slurry preparation is with conventional method glass chopped silk, plain boiled water to be added in the stirring pool evenly to stir, and the content of glass chopped silk in slurry is 0.1%～0.3% (weight); The viscosity of slurry is 8CP～12CP; PH value is 4～8; Air content is 4%～10%;
It is that prepared slurry is sent into the slurry distributor by stock control valve and an amount of plain boiled water after the dilution of flow box pump that described starching is shaped, after the homogenate of slurry distributor, send into flow box, have ladder anemostat and orifice plate that slurry is carried out laterally evenly cloth slurry in the flow box, the shaping guipure that the glass chopped silk in the slurry is moved is continuously taken away;
Described shaping dehydration is evenly to dewater on the guipure that tilts from the uniform slurry of flow box, and glass chopped silk is evenly distributed in and forms wet felt on the guipure, and wet felt dewaters through twice forced dehydration case, yet is sent to impregnator;
Described dipping gluing is that the wet felt of glass fibre is sent into impregnator, binding agent is delivered in the overflow adhesive applicator of applying glue guipure top through membrane pump, the binding agent that flows down from adhesive applicator is soaked on the wet felt of glass fibre saturatedly, unnecessary binding agent is taken out method by suction box, comes back in the circulation glue jar after knockout drum separates; Described oven dry is to adopt hot blast penetration convection furnace drying method.
2, according to the preparation method of the described glass chopped silk mat of claim 1, it is characterized in that: described thickener is a hydroxyethylcellulose; Described dispersant is the aliphatic acid condensation polymer; Described defoamer is Agitan295.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031528422A CN1515723A (en) | 2003-08-24 | 2003-08-24 | Preparation method of glass fiber thin felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031528422A CN1515723A (en) | 2003-08-24 | 2003-08-24 | Preparation method of glass fiber thin felt |
Publications (1)
| Publication Number | Publication Date |
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| CN1515723A true CN1515723A (en) | 2004-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA031528422A Pending CN1515723A (en) | 2003-08-24 | 2003-08-24 | Preparation method of glass fiber thin felt |
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2003
- 2003-08-24 CN CNA031528422A patent/CN1515723A/en active Pending
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