CN101063280A - Synthetic fiber papers and manufacturing method - Google Patents
Synthetic fiber papers and manufacturing method Download PDFInfo
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- CN101063280A CN101063280A CN 200610026035 CN200610026035A CN101063280A CN 101063280 A CN101063280 A CN 101063280A CN 200610026035 CN200610026035 CN 200610026035 CN 200610026035 A CN200610026035 A CN 200610026035A CN 101063280 A CN101063280 A CN 101063280A
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Abstract
The invention relates to a synthetic fiber paper technical field, in particular to a paper all made from synthetic fiber, and a relative production, which uses the slurry made from and composite material, uses the polyester fiber and nylon fiber with low cost as main material, added with aramid fiber with high-temperature size stability, via surface net, material net, or round net to obtain the paper with better insulation, temperature resistance, humidity resistance, and chemical corrosion resistance. The inventive paper has high property/cost ratio, meeting the insulation demand of general electric appliance.
Description
Technical field
The present invention relates to a kind of synthetic fibre paper with and preparation method thereof.Being specifically related to a kind of whole employing synthetic fiber is raw material, and the synthetic fibre paper with good corrosion resistance, heat resistance and insulating properties with and manufacture method.
Background technology
The manufacturing of paper and use history very long manufactures paper with pulp and form but traditional paper all is raw material with the natural fabric, so range of application is more limited, often can not satisfy for some special needs.Since synthetic fiber have been arranged, people just begin to grope to replace natural fabric papermaking with synthetic fiber, because the mechanical strength of synthetic fiber and chemical stability be apparently higher than natural fabric, so the appearance of synthetic fibre paper, make the purposes of paper obtain great expansion.
Along with the development of electrical equipment manufacturing technology, proposed the circuit in the electrical equipment is carried out the requirement of reliable insulation protection again, the material that can be used for the electrical equipment wire insulation is a lot, and consumption is also very big.Paper is because its softness, use to change and conveniently be subjected to common attention, in most occasions, require these insulating papers that good stable is arranged, especially require in long-term the use, can keep stable performance, and the heat that sends can stand electrical work the time, therefore heat-resisting quantity preferably to be arranged.
At present, insulating paper market is monopolized by the Nomex paper of du pont company substantially.The raw material of these paper is the aramid fiber 1313 fiber of energy withstand long term exposure high temperature more than 220 ℃ and the pulp of aramid fiber 1313, general designation aramid fiber paper.Although these material temperature tolerances are good, its cost costliness, and for most of purposes, can be loosened to 180 ℃ to stable on heating requirement.Therefore, using Nomex paper is a kind of wastes in some application scenarios.
Japan Supreme Being people company has recognized the problems referred to above, and proposed to improve one's methods, it is at Chinese patent (notification number CN1522326, the day for announcing is on August 18th, 2004, name is called " heat resistance synthetic fiber thin slice ") in a kind of heat resistance synthetic fibre paper has been described, it contains the heat resistance synthetic organic polymers staple fibre of 40-97 quality % and heat resistance synthetic organic polymers fine strip body and/or the organic system resin binder of the 3-60 quality % that these fibers are mutually combined, it is made into the matrix material of circuit board with laminated body, the shortcoming of this technology is that manufacturing technology is more loaded down with trivial details, and can not adopt conventional paper making equipment to produce.
Chinese patent notification number CN1310263, the day for announcing is August 29 calendar year 2001, name is called the production method that discloses a kind of insulating paper in " a kind of production method of insulating paper ", process by producing processing steps such as macromolecule raw material, making beating, papermaking, press polish, it is successively saponified by preparation dilute sulfuric acid, hydrazine sulfate, oxadiazoles fiber solution, oxadiazoles fiber cake and rosin to produce macromolecule raw material; The water that again oxadiazoles fiber cake 70-90 part, CMC carboxymethyl cellulose 2.5-12.5 part, polyster fibre 40-60 part, the saponified 0.2-2.2 part of rosin is added more than 900-950 part is made the papermaking slurry, adopt conventional paper technology to make insulating paper, adopted polyster fibre in this method, reduced the cost of finished paper, but adopted CMC as adhesive in the prescription, because therefore its hygroscopicity causes finished paper moisture higher, decreasing insulating.
Chinese patent notification number CN1222604, the day for announcing is on July 14th, 1999, name is called " special synthetic fiber paper and production method thereof " and has introduced a kind of special synthetic fiber paper, wherein contain the Fanglun l414 fiber, terylene and mica powder composition have provided several prescriptions, according to this patent, the main terylene that relies on is as adhesive, because the terylene amount ratio is less, so bonding effect is poor, owing to do not use pulp, so the fiber of fibrillating is few, fiber self bonding is poor, can leave aperture on the paper, influenced the mechanical strength of finished paper, High-Voltage Insulation, and because the Fanglun l414 amount ratio is great, so the cost of finished paper is still than higher.
Summary of the invention
The objective of the invention is to overcome the defective of existing insulating paper technology, provide that a kind of cost is lower, corrosion-resistant, high temperature resistant, moisture-proof and the good synthetic fibre paper of insulating properties, can adapt to the environment of high temperature humidity fully.
Design of the present invention is to utilize aramid fiber short fibre to be skeleton, can guarantee that paper is under the prerequisite of 200 ℃ of following dimensionally stables, use polyester and nylon fiber to replace aramid fiber as far as possible, adopt some synthetic material pulps low without the mechanical strength that pulp causes simultaneously, the defective that the High-Voltage Insulation performance is lower to remedy Chinese patent 99114653.2.
For achieving the above object, the technical scheme that is adopted is: adopt insulating properties, moisture-proof and chemical resistance good, and the synthetic fiber with better heat resistance are raw material, make and meet the requirements of speciality paper.Comprise the steps: that (1) adds 20～90% polyester staple fibers in water, 0-50% nylon staple fiber, 0～40% aramid short fiber or fragrant sulfone synthetic fibre staple fiber, 10～40% Fanglun slurry cakes or fragrant sulfone synthetic fibre pulp, 0～20% viscose fibre and dispersing aid, raw material is through fully obtaining slurry after the dispersed with stirring.(2) approach flow moulding is through dehydration, squeezing, the dry body paper that forms.(3) body paper is carried out hot-forming, through the side cut package, obtain insulating properties, heat resistance, moisture-proof, the finished paper that corrosion resistance is good.
As optimized technical scheme:
Described aramid short fiber is meant that fibre length is 1.5-7mm Fanglun 1313 or Fanglun 1414 or through the mixture less than the Fanglun 1313 of 10% modification by copolymerization or Fanglun 1414 or two kinds and two or more above-mentioned fiber.
Described viscose fibre is a polypropylene fibre, polyethylene fiber, and polyster fibre, nylon fiber contains the composite fibre or the vinal of polypropylene, polyethylene, terylene, nylon.
Described polyester staple fiber is meant that fibre length is dacron fibre or polytrimethylene terephthalate fiber or poly fiber or wherein any two kinds of fibre blends or three kinds of fibre blends of 1.5-7mm.
Described nylon staple fiber is meant that fibre length is the nylon 6 fiber of 1.5-7mm or the mixture of nylon 66 fiber or two kinds of fibers.
Described Fanglun slurry cake is meant that specific area is 3m
2/ g-45m
2The polyisophthaloyl metaphenylene diamide pulp of/g or PPTA pulp or through mixture less than the polyisophthaloyl metaphenylene diamide pulp of 10% modification by copolymerization or PPTA pulp or two kinds and two or more above-mentioned pulp.
Described hot pressing be meant adopt roller mill under 90 ℃-300 ℃ with the 0-200kg/cm line pressure or utilize under the pressure condition of flat-bed press at 90-300 ℃ and 0～40MPa, to body paper carry out hot-forming.
The invention has the advantages that:
1. used the wet process route the same with traditional papermaking process, therefore can be in common paper mill, utilize existing table net, material net, fourdrinier wire, oblique net or garden net paper machine to carry out manufacturing paper with pulp of paper, need not equipment is done big improvement, so technical risk is low, cost of investment is few.Production capacity is big.
2. a large amount of relatively more cheap and good synthetic fiber of insulating properties of prices such as polyester, nylon that use in composition of raw materials, the cost of material of manufacturing is effectively controlled, the insulating properties of finished paper are the same with aramid fiber paper, but price has been compared great decline with adopting pure aramid fiber raw material.
3. the insulating paper that adopts the inventive method to make at least can anti-180 ℃ high temperature, can satisfy the high temperature resistant requirement of most electrical apparatus insulations, has avoided the waste on the performance.
Specific implementation method
Example below in conjunction with concrete is further elaborated this aspect.
Embodiment 1: add 65 weight % polyester fibers in water, its length is that (wherein dacron fibre 40% for 3-6mm, length 6mm, the poly fiber 25%, length 3mm), 10 weight % aramid fiber 1313 fibers (length is 4mm), 12 weight % virtue sulfone synthetic fibre staple fiber (length is 4mm), 10 weight % specific areas are 14m
2The aramid fiber 1313 pulp of/g, 2.5 weight % polyvinyl alcohol viscose fibres and 0.5 weight % dispersing aid; Wherein water and solids ratios are to obtain slurry after 350: 1 raw materials disperse.Adopt cylinder mould machine papermaking, approach flow becomes after dehydration is squeezed, and drying obtains a mao paper, and this mao paper adopts roller mill hot-forming with the 180kg/cm line pressure under 245 ℃, through the side cut package, obtains finished paper.Tensile strength＞the 3.5kN/M of finished paper, edge tear 32～130N, dielectric strength＞18.3kv/mm.This finished paper experiences 200 hours down continuously in 185 ℃, and intensity and dielectric strength loss late are all less than 1%.
Embodiment 2: add 35 weight % polyester fibers in water, its length is that (wherein dacron fibre 30% for 2-6mm, length 6mm, polytrimethylene terephthalate fiber 5%, length 2mm), 35 weight % aramid fiber 1313 fibers (length is 4mm), 15 weight % virtue sulfone synthetic fibre staple fiber (degree is 4mm), 10 weight % specific areas are 22m
2The fragrant sulfone synthetic fibre pulp of/g, 4 weight % polyvinyl alcohol viscose fibres and 1 weight % dispersing aid; Wherein water and solids ratios are to obtain slurry after 350: 1 raw materials disperse.Adopt fourdrinier machine papermaking, approach flow becomes after dehydration is squeezed, and drying obtains a mao paper, and this mao paper adopts roller mill hot-forming with the 120kg/cm line pressure under 265 ℃, through the side cut package, obtains finished paper.Tensile strength＞the 3.6KN/M of finished paper, edge tear 34～140N, dielectric strength＞18.8KV/MM.This finished paper experiences 200 hours down continuously in 200 ℃, and intensity and dielectric strength loss late are less than 1%.
Embodiment 3: add 40 weight % polyester fibers in water, its length is 5mm (being dacron fibre), 10 weight % aramid fiber 1313 fibers (length is 4mm), and 38 weight % specific areas are 20m
2The fragrant sulfone synthetic fibre pulp of/g, 10 weight % polypropylene viscose fibres and 2 weight % dispersing aiies; Wherein water and solids ratios are to obtain slurry after 350: 1 raw materials disperse.Adopt the papermaking of oblique net net paper machine, approach flow becomes after dehydration is squeezed, and drying obtains a mao paper, and this mao paper adopts roller mill hot-forming with the 90kg/cm line pressure under 180 ℃, through the side cut package, obtains finished paper.Tensile strength＞the 3.4KN/M of finished paper, edge tear 35～170N, dielectric strength＞19.5KV/MM.This finished paper experiences 200 hours down continuously in 180 ℃, and intensity and dielectric strength loss late are less than 1%.
Reference examples 1: in water, add 65 weight % polyester fibers, its length is that (wherein dacron fibre 40% for 3-6mm, length 6mm, the poly fiber 25%, length 3mm), 20 weight % aramid fiber 1313 fibers (length is 4mm), 12 weight % virtue sulfone synthetic fibre staple fiber (degree is 4mm), 2.5 weight % polyvinyl alcohol viscose fibres and 0.5 weight % dispersing aid; Wherein water and solids ratios are to obtain slurry after 350: 1 raw materials disperse.Adopt cylinder mould machine papermaking, approach flow becomes after dehydration is squeezed, and drying obtains a mao paper, and this mao paper adopts roller mill hot-forming with the 180kg/cm line pressure under 245 ℃, through the side cut package, obtains finished paper.The tensile strength of finished paper is＞2.9KN/M edge tear 30～120N, dielectric strength＞16.8KV/MM.This finished paper experiences 200 hours down continuously in 185 ℃, and intensity and dielectric strength loss late are all less than 1%, but owing to do not use pulp fibers, the insulating properties of paper are starkly lower than embodiment.
Reference examples 2: in water, add 75 weight % polyester fibers, its length is that (wherein dacron fibre 50% for 3-6mm, length 6mm, the poly fiber 25%, length 3mm), 10 weight % nylon, 6 staple fibers (length is 4mm), 10 weight % specific areas are 14m
2The aramid fiber 1313 pulp of/g, 2.5 weight % polyvinyl alcohol viscose fibres and 0.5 weight % dispersing aid; Wherein water and solids ratios are to obtain slurry after 350: 1 raw materials disperse.Adopt cylinder mould machine papermaking, approach flow becomes after dehydration is squeezed, and drying obtains a mao paper, and this mao paper adopts roller mill hot-forming with the 180kg/cm line pressure under 240 ℃, through the side cut package, obtains finished paper.Tensile strength＞the 3.2KN/M of finished paper, edge tear 31d135N, dielectric strength＞17.3KV/MM.This finished paper experiences 200 hours down continuously in 185 ℃, and the dielectric strength loss late is less than 1%, but owing to there is not resistant to elevated temperatures aramid fiber to make skeleton, its loss of strength rate is greater than 50%.
The above only is preferred embodiment of the present invention, is not composition material of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention is to any simple modification that above embodiment did, and equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (9)
1. synthetic fibre paper, it is characterized in that comprising following ingredients: 20～90% polyester staple fibers, 0～50% nylon staple fiber, 0～40% aramid short fiber or fragrant sulfone synthetic fibre staple fiber, 10～70% Fanglun slurry cakes or fragrant sulfone synthetic fibre pulp, 0～60% polyester pulp, 0～20% viscose fibre and dispersing aid, the ratio of above-mentioned each component is weight percentage.
2. synthetic fibre paper according to claim 1 is characterized in that: described polyester staple fiber is meant that fibre length is dacron fibre or polytrimethylene terephthalate fiber or poly fiber or any two or more fibre blend wherein of 1.5～7mm.
3. synthetic fibre paper according to claim 1 is characterized in that: described nylon staple fiber is meant that fibre length is the nylon 6 fiber of 1.5～7mm or the mixture of nylon 66 fiber or two kinds of fibers.
4. synthetic fibre paper according to claim 1 is characterized in that: described aramid short fiber is meant that fibre length is 1.5～7mm Fanglun 1313 or Fanglun 1414 or through the mixture less than the Fanglun 1313 of 10% modification by copolymerization or Fanglun 1414 or two kinds and two or more above-mentioned fiber.
5. according to the described synthetic fibre paper of claim 1, it is characterized in that: described Fanglun slurry cake is meant that specific area is 3m
2/ g～45m
2The polyisophthaloyl metaphenylene diamide pulp of/g or PPTA pulp or through mixture less than the polyisophthaloyl metaphenylene diamide pulp of 10% modification by copolymerization or PPTA pulp or two kinds and two or more above-mentioned pulp.
6. synthetic fibre paper according to claim 1 is characterized in that: described viscose fibre is a polypropylene fibre, polyethylene fiber, and polyster fibre, nylon fiber contains the composite fibre or the vinal of polypropylene, polyethylene, terylene, nylon.
7. the manufacture method of above-mentioned synthetic fibre paper is characterized in that comprising the steps:
(1) in water, adds 20～90% polyester staple fibers, 0～50% nylon staple fiber, 0～40% aramid short fiber or fragrant sulfone synthetic fibre staple fiber, 10～70% Fanglun slurry cakes or fragrant sulfone synthetic fibre pulp, 0～60% polyester pulp, 0～20% viscose fibre and dispersing aid, raw material is through fully obtaining slurry after the dispersed with stirring.
(2) approach flow moulding.
(3) dehydration, squeezing, drying.
(4) hot-forming, through the side cut package, obtain finished paper.
8. according to the manufacture method of the described synthetic fibre paper of claim 7, it is characterized in that: described hot pressing be meant adopt roller mill under 90 ℃～400 ℃ with 0～200kg/cm line pressure or utilize under the pressure condition of flat-bed press at 90～400 ℃ and 0～40MPa, to body paper carry out hot-forming.
9. according to the manufacture method of the described synthetic fibre paper of claim 7, it is characterized in that: described approach flow moulding is utilization table net, material net, fourdrinier wire, tiltedly net or the moulding of cylinder mould machine technology.
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| CN 200610026035 CN101063280A (en) | 2006-04-25 | 2006-04-25 | Synthetic fiber papers and manufacturing method |
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| CN 200610026035 CN101063280A (en) | 2006-04-25 | 2006-04-25 | Synthetic fiber papers and manufacturing method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748648B (en) * | 2010-02-09 | 2011-05-18 | 陕西科技大学 | Method for making mica paper by reinforcement of aramid short fiber and chemical pulping |
| CN102747654A (en) * | 2012-07-09 | 2012-10-24 | 重庆大学 | Low-dielectric-constant insulating paper and preparation method thereof |
| CN103485234A (en) * | 2013-10-22 | 2014-01-01 | 陕西科技大学 | Preparation method of mixed fiber system aramid paper |
| CN105256656A (en) * | 2015-09-16 | 2016-01-20 | 陕西科技大学 | Preparation method for PET fiber paper |
| CN106229448A (en) * | 2016-08-13 | 2016-12-14 | 华南理工大学 | A kind of lithium battery diaphragm paper and preparation method thereof |
| CN106223104A (en) * | 2016-07-27 | 2016-12-14 | 陕西科技大学 | A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper |
| CN106223103A (en) * | 2016-07-27 | 2016-12-14 | 陕西科技大学 | A kind of preparation method of polyester meta-aramid extrusion coating paper |
| CN106245421A (en) * | 2016-07-27 | 2016-12-21 | 陕西科技大学 | A kind of preparation method of para-position/meta-aramid extrusion coating paper |
| CN108560303A (en) * | 2018-04-02 | 2018-09-21 | 宁波日新恒力科技有限公司 | A kind of reverse osmosis membrane base material non-woven fabrics and preparation method thereof enhanced containing polyarylate fiber |
| CN108618971A (en) * | 2017-03-21 | 2018-10-09 | 大江生医股份有限公司 | Biological fiber slurry, dry type biological fibrous material and its preparation method and facial mask |
| CN110499669A (en) * | 2019-08-28 | 2019-11-26 | 恩若杰纳米技术(上海)有限公司 | A kind of environment-protection fiber paper and preparation method thereof |
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2006
- 2006-04-25 CN CN 200610026035 patent/CN101063280A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748648B (en) * | 2010-02-09 | 2011-05-18 | 陕西科技大学 | Method for making mica paper by reinforcement of aramid short fiber and chemical pulping |
| CN102747654A (en) * | 2012-07-09 | 2012-10-24 | 重庆大学 | Low-dielectric-constant insulating paper and preparation method thereof |
| CN103485234A (en) * | 2013-10-22 | 2014-01-01 | 陕西科技大学 | Preparation method of mixed fiber system aramid paper |
| CN103485234B (en) * | 2013-10-22 | 2016-04-06 | 陕西科技大学 | A kind of preparation method of blended fiber system aramid paper |
| CN105256656A (en) * | 2015-09-16 | 2016-01-20 | 陕西科技大学 | Preparation method for PET fiber paper |
| CN106223104A (en) * | 2016-07-27 | 2016-12-14 | 陕西科技大学 | A kind of method using PSA fiber to prepare aramid fiber extrusion coating paper |
| CN106223103A (en) * | 2016-07-27 | 2016-12-14 | 陕西科技大学 | A kind of preparation method of polyester meta-aramid extrusion coating paper |
| CN106245421A (en) * | 2016-07-27 | 2016-12-21 | 陕西科技大学 | A kind of preparation method of para-position/meta-aramid extrusion coating paper |
| CN106223104B (en) * | 2016-07-27 | 2018-08-03 | 陕西科技大学 | A method of aramid fiber extrusion coating paper is prepared using PSA fiber |
| CN106229448A (en) * | 2016-08-13 | 2016-12-14 | 华南理工大学 | A kind of lithium battery diaphragm paper and preparation method thereof |
| CN106229448B (en) * | 2016-08-13 | 2019-05-14 | 华南理工大学 | A kind of lithium battery diaphragm paper and preparation method thereof |
| CN108618971A (en) * | 2017-03-21 | 2018-10-09 | 大江生医股份有限公司 | Biological fiber slurry, dry type biological fibrous material and its preparation method and facial mask |
| CN108618971B (en) * | 2017-03-21 | 2021-04-06 | 大江生医股份有限公司 | Biological fiber slurry, dry biological fiber material, preparation method thereof and skin care film |
| CN108560303A (en) * | 2018-04-02 | 2018-09-21 | 宁波日新恒力科技有限公司 | A kind of reverse osmosis membrane base material non-woven fabrics and preparation method thereof enhanced containing polyarylate fiber |
| CN110499669A (en) * | 2019-08-28 | 2019-11-26 | 恩若杰纳米技术(上海)有限公司 | A kind of environment-protection fiber paper and preparation method thereof |
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Open date: 20071031 |