CN102953290B - A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper - Google Patents
A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper Download PDFInfo
- Publication number
- CN102953290B CN102953290B CN201210434470.XA CN201210434470A CN102953290B CN 102953290 B CN102953290 B CN 102953290B CN 201210434470 A CN201210434470 A CN 201210434470A CN 102953290 B CN102953290 B CN 102953290B
- Authority
- CN
- China
- Prior art keywords
- paper
- meta
- fiber
- aramid fibre
- polyimide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention provides the preparation method that a kind of meta-aramid fibre fibrid strengthens polyimide fiber paper: polyimides staple fiber is discongested dispersion in trough-style pulp beater, add after meta-aramid fibre fibrid is discongested dispersion in trough-style pulp beater in polyimides staple fiber and obtain polyimide fiber slurry, polyimides staple fiber quality polyethylene glycol oxide is added in polyimide fiber slurry, styrene-butadiene latex and cationic polyacrylamide, then paper using machine is manufactured paper with pulp shaping, dry body paper, polyimide fiber paper is obtained through hot press hot pressing by after body paper polyimide resin-impregnated, the preparation method that meta-aramid fibre fibrid of the present invention strengthens polyimide fiber paper adds meta-aramid fibre fibrid in the process of polyimide fiber copy paper, improve the intensity of polyimide fiber paper, manufacturing paper with pulp property, decrease disconnected paper when manufacturing paper with pulp, improve paper machine speed and production efficiency.
Description
Technical field
The invention belongs to paper industry and material industry crossing domain, be specifically related to the preparation method that a kind of meta-aramid fibre fibrid strengthens polyimide fiber paper.
Background technology
Polyimide fiber has high heat endurance, high elastic modelling quantity and low water absorbable, can be widely used in the research such as atomic energy industry, space environment, recover needs, Aero-Space, national defense construction, novel building, rapid, ocean development, sports apparatus, new forms of energy, Environmental Industry and safety device.
Polyimide fiber, due to self structure, has the features such as high temperature resistant, thermally-stabilised, good electrical insulating property.Have bibliographical information, carry out thermogravimetric analysis to the polyimide fiber of different route of synthesis and spinning and show, its decomposition temperature started all can reach more than 300 DEG C, and some decomposition temperatures even can reach 600 DEG C.Therefore, in the place higher to temperature requirements, polyimide fiber paper sill demonstrates larger advantage.
Polyimides staple fiber due to the characteristic of fiber self, surperficial smoother, making beating can not produce the phenomenon of wire-dividing broom purification, and thus interfibrous adhesion is more weak; And meta-aramid full name " Fanglun 1313 ", english abbreviation is PMIA, and China is called aramid fiber 1313.Meta-aramid fibre fibrid is while the premium properties inheriting meta-aramid 1313 staple fiber, also there is papermaking properties more better than staple fiber, as little in fibrid density, surface is in lint shape, fento is grown thickly, filoplume enriches, there is the wire-dividing broom purification phenomenon similar with string, fiber axis caudad fibril changes into tip-like, fiber surface area is huge, this phenomenon being similar to string wire-dividing broom purification on fibrid surface, make itself and allied fiber, more easily hydrogen bond is formed between the compound resin of aqueous medium and amide-type, make the intertexture power of aramid fiber fibrid strong, thus the dispersiveness in aqueous medium is fine, other fibers coordinate the evenness of pulping when manufacturing paper with pulp better, become the evenness of page during paper also relatively good, but because fibre length is less, intensity is also less.
Summary of the invention
A kind of meta-aramid fibre fibrid is the object of the present invention is to provide to strengthen the preparation method of polyimide fiber paper.
For achieving the above object, present invention employs following technical scheme:
1) polyimides staple fiber is discongested dispersion 10 ~ 120 minutes in trough-style pulp beater;
2) meta-aramid fibre fibrid is discongested dispersion in trough-style pulp beater, discongesting and being dispersed to beating degree is that 20 ~ 60 ° of SR obtain meta-aramid fibre fibrid slurry, meta-aramid fibre fibrid slurry is added through step 1) to discongest in the polyimides staple fiber after dispersion to obtain polyimide fiber slurry, the addition of meta-aramid fibre fibrid slurry counts 0.1 ~ 15% of polyimides staple fiber absolute dry mass with meta-aramid fibre fibrid absolute dry mass, the polyethylene glycol oxide (PEO) of polyimides staple fiber absolute dry mass 0.01 ~ 7% is added in polyimide fiber slurry, the styrene-butadiene latex of 0.1 ~ 18% and the cationic polyacrylamide (CPAM) of 0.1 ~ 15%, then paper using machine is manufactured paper with pulp shaping, dry body paper, polyimide fiber paper is obtained through hot press hot pressing by after body paper polyimide resin-impregnated, the filling of meta-aramid fibre fibrid and be similar to the phenomenon of wire-dividing broom purification of string, improve the intensity that polyimide fiber paper is opened.
The length of described polyimides staple fiber is 2 ~ 10mm.
The pickup of described polyimide resin is 10 ~ 30% of original paper quality, and paper pickup is too small, and paper tensile strength and compressive resistance strengthen not obvious; Pickup is too high, brings larger negative effect to paper percentage elongation and tearability.The polyimide resin that the present invention adopts is resistant to elevated temperatures polyimide resin, is specially the high temperature resistant YI-FX resin that Changchun Gao Qi polyimides limited company produces.
The preparation method that meta-aramid fibre fibrid of the present invention strengthens polyimide fiber paper adds meta-aramid fibre fibrid in the process of polyimide fiber copy paper, and utilize polyimide resin to carry out impregnation process to body paper, improve the intensity of polyimide fiber paper, manufacturing paper with pulp property, decrease disconnected paper when manufacturing paper with pulp, improve paper machine speed and production efficiency.
Through long-term experimental study, find, in the process of polyimide fiber copy paper, to add a certain amount of meta-aramid fibre fibrid, effectively can improve into evenness during paper, increase the wet strength of page, after drying, indices is also significantly improved.
Polyimide fiber paper prepared by the present invention is environment-friendly and energy-efficient new product, with high content of technology, strong innovation, have a extensive future, to promotion Hi-tech Industry Development, promote the upgrading of conventional industries, promote the class of insulating materials product, promote that the development of related industry is of great immediate significance.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.As shown in Figure 1, concrete technology is as follows for the technological process of production of the present invention:
Embodiment 1
First polyimides staple fiber is discongested dispersion 30 minutes in trough-style pulp beater, make polyimides staple fiber discongest dispersion and suitable cut-out fully; Meta-aramid fibre fibrid is carried out in trough-style pulp beater discongest dispersion, discongesting and being dispersed to beating degree is that 60 ° of SR obtain meta-aramid fibre fibrid slurry, according to 10% (in meta-aramid fibre fibrid absolute dry mass, ratio relative to polyimides staple fiber absolute dry mass) proportioning by meta-aramid fibre fibrid slurry join in the polyimides staple fiber after discongesting dispersion, be prepared into polyimide fiber slurry; The phenomenons such as the poly-entanglement of wadding that fiber occurs are passed through in journey for anti-fluid stopping, the PEO (ratio relative to polyimides staple fiber absolute dry mass) of 3% is added as dispersant in polyimide fiber slurry, improve the viscosity of pulp suspension, reduce wadding poly-, in order to make paper obtain initial intensity, in polyimide fiber slurry, add the CPAM of the styrene-butadiene latex and 15% (ratio relative to polyimides staple fiber absolute dry mass) of 0.1% (ratio relative to polyimides staple fiber absolute dry mass); Finally, oblique net or cylinder mould machine are manufactured paper with pulp shaping, at temperature is 90 DEG C dry polyimide fiber body paper, by polyimide fiber body paper polyimide resin-impregnated, the pickup of polyimide resin controls, at 10% (mass ratio relative to polyimide fiber body paper), to produce satisfactory paper after dipping through hot press hot pressing.
Embodiment 2
First polyimides staple fiber is discongested dispersion 10 minutes in trough-style pulp beater, make polyimides staple fiber discongest dispersion and suitable cut-out fully; Meta-aramid fibre fibrid is carried out in trough-style pulp beater discongest dispersion, discongesting and being dispersed to beating degree is that 20 ° of SR obtain meta-aramid fibre fibrid slurry, according to 15% (in meta-aramid fibre fibrid absolute dry mass, ratio relative to polyimides staple fiber absolute dry mass) proportioning by meta-aramid fibre fibrid slurry join in the polyimides staple fiber after discongesting dispersion, be prepared into polyimide fiber slurry; The phenomenons such as the poly-entanglement of wadding that fiber occurs are passed through in journey for anti-fluid stopping, the PEO (ratio relative to polyimides staple fiber absolute dry mass) of 7% is added as dispersant in polyimide fiber slurry, improve the viscosity of pulp suspension, reduce wadding poly-, in order to make paper obtain initial intensity, in polyimide fiber slurry, add the CPAM of the styrene-butadiene latex and 2.5% (ratio relative to polyimides staple fiber absolute dry mass) of 6% (ratio relative to polyimides staple fiber absolute dry mass); Finally, oblique net or cylinder mould machine are manufactured paper with pulp shaping, at temperature is 105 DEG C dry polyimide fiber body paper, by polyimide fiber body paper polyimide resin-impregnated, the pickup of polyimide resin controls, at 15% (mass ratio relative to polyimide fiber body paper), to produce satisfactory paper after dipping through hot press hot pressing.
Embodiment 3
First polyimides staple fiber is discongested dispersion 120 minutes in trough-style pulp beater, make polyimides staple fiber discongest dispersion and suitable cut-out fully; Meta-aramid fibre fibrid is carried out in trough-style pulp beater discongest dispersion, discongesting and being dispersed to beating degree is that 40 ° of SR obtain meta-aramid fibre fibrid slurry, according to 0.1% (in meta-aramid fibre fibrid absolute dry mass, ratio relative to polyimides staple fiber absolute dry mass) proportioning by meta-aramid fibre fibrid slurry join in the polyimides staple fiber after discongesting dispersion, be prepared into polyimide fiber slurry; The phenomenons such as the poly-entanglement of wadding that fiber occurs are passed through in journey for anti-fluid stopping, the PEO (ratio relative to polyimides staple fiber absolute dry mass) of 0.01% is added as dispersant in polyimide fiber slurry, improve the viscosity of pulp suspension, reduce wadding poly-, in order to make paper obtain initial intensity, in polyimide fiber slurry, add the CPAM of the styrene-butadiene latex and 0.1% (ratio relative to polyimides staple fiber absolute dry mass) of 18% (ratio relative to polyimides staple fiber absolute dry mass); Finally, oblique net or cylinder mould machine are manufactured paper with pulp shaping, at temperature is 115 DEG C dry polyimide fiber body paper, by polyimide fiber body paper polyimide resin-impregnated, the pickup of polyimide resin controls, at 30% (mass ratio relative to polyimide fiber body paper), to produce satisfactory paper after dipping through hot press hot pressing.
Three kinds of paper performance comparative analyses see the following form
| Paper type | Tensile index/Nmg -1 | Tear index/mNm 2g -1 | Compressive resistance/kVmm -1 |
| Polyimides paper | 37.45 | 23.56 | 6.57 |
| Meta-position aramid fiber paper | 33.26 | 24.53 | 9.72 |
| Enhancement mode polyimides paper | 43.52 | 30.85 | 11.43 |
In upper table, enhancement mode polyimides paper prepares according to embodiment 1, polyimides paper and meta-position aramid fiber paper are contrast, as can be seen from the above table, compared with polyimide fiber paper and other two kinds of paper that meta-aramid fibre fibrid strengthens, strength character and electric property have obvious advantage.
Claims (2)
1. meta-aramid fibre fibrid strengthens a preparation method for polyimide fiber paper, it is characterized in that, comprises the following steps:
1) polyimides staple fiber is discongested dispersion 30 ~ 120 minutes in trough-style pulp beater, make polyimides staple fiber discongest dispersion and suitable cut-out fully;
2) meta-aramid fibre fibrid is discongested dispersion in trough-style pulp beater, discongesting and being dispersed to beating degree is that 20 ~ 60 ° of SR obtain meta-aramid fibre fibrid slurry, meta-aramid fibre fibrid slurry is added through step 1) to discongest in the polyimides staple fiber after dispersion to obtain polyimide fiber slurry, the addition of meta-aramid fibre fibrid slurry counts 0.1 ~ 10% of polyimides staple fiber absolute dry mass with meta-aramid fibre fibrid absolute dry mass, the polyethylene glycol oxide of polyimides staple fiber absolute dry mass 0.01 ~ 7% is added in polyimide fiber slurry, the styrene-butadiene latex of 0.1 ~ 18% and the cationic polyacrylamide of 0.1 ~ 15%, then paper using machine is manufactured paper with pulp shaping, dry body paper, polyimide fiber paper is obtained through hot press hot pressing by after body paper polyimide resin-impregnated, the polyimide resin adopted is resistant to elevated temperatures polyimide resin, be specially high temperature resistant YI-FX resin, the pickup of polyimide resin is 10 ~ 30% of original paper quality.
2. a kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper according to claim 1, it is characterized in that: the length of described polyimides staple fiber is 2 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434470.XA CN102953290B (en) | 2012-11-02 | 2012-11-02 | A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434470.XA CN102953290B (en) | 2012-11-02 | 2012-11-02 | A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953290A CN102953290A (en) | 2013-03-06 |
| CN102953290B true CN102953290B (en) | 2015-11-04 |
Family
ID=47762634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210434470.XA Active CN102953290B (en) | 2012-11-02 | 2012-11-02 | A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953290B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369672B (en) * | 2015-10-20 | 2017-06-09 | 陕西科技大学 | A kind of polyimide fiber mica paper and preparation method thereof |
| CN105386363B (en) * | 2015-10-29 | 2017-10-31 | 陕西科技大学 | A kind of preparation method of alkaline-resisting polyimide fiber paper |
| CN112726264B (en) * | 2020-12-25 | 2023-01-10 | 烟台民士达特种纸业股份有限公司 | Polyimide paper base material for wave-transparent honeycomb and preparation method thereof |
| CN112726283B (en) * | 2020-12-25 | 2022-09-06 | 烟台民士达特种纸业股份有限公司 | Poly (p-phenylene benzobisoxazole) fiber paper base material for high-temperature-resistant honeycomb core material and preparation method thereof |
| CN115787345B (en) * | 2022-11-28 | 2024-03-19 | 陕西科技大学 | Montmorillonite doped polyimide fiber paper and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748646A (en) * | 2009-12-31 | 2010-06-23 | 烟台美士达特种纸业股份有限公司 | Stuff used for preparing meta-aramid paper, the production method thereof and meta-aramid paper made from the stuff and the production method thereof |
| CN102174770A (en) * | 2011-01-27 | 2011-09-07 | 深圳昊天龙邦复合材料有限公司 | Prepreg containing aromatic synthetic fiber paper and printed circuit board manufactured from same |
| CN102517976A (en) * | 2011-12-08 | 2012-06-27 | 烟台民士达特种纸业股份有限公司 | Preparation method of pure p-aramid paper |
-
2012
- 2012-11-02 CN CN201210434470.XA patent/CN102953290B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748646A (en) * | 2009-12-31 | 2010-06-23 | 烟台美士达特种纸业股份有限公司 | Stuff used for preparing meta-aramid paper, the production method thereof and meta-aramid paper made from the stuff and the production method thereof |
| CN102174770A (en) * | 2011-01-27 | 2011-09-07 | 深圳昊天龙邦复合材料有限公司 | Prepreg containing aromatic synthetic fiber paper and printed circuit board manufactured from same |
| WO2012100648A1 (en) * | 2011-01-27 | 2012-08-02 | 深圳昊天龙邦复合材料有限公司 | Prepreg comprising aromatic synthetic fiber paper and printed circuit board made using the prepreg |
| CN102517976A (en) * | 2011-12-08 | 2012-06-27 | 烟台民士达特种纸业股份有限公司 | Preparation method of pure p-aramid paper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953290A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103572640B (en) | A kind of p-aramid fiber fibrid prepares the method for p-aramid paper | |
| CN102953288B (en) | A kind of PPTA-pulp strengthens the preparation method of polyimide fiber paper | |
| CN102953290B (en) | A kind of meta-aramid fibre fibrid strengthens the preparation method of polyimide fiber paper | |
| CN112663382B (en) | High-mechanical-strength aramid fiber insulation paper and preparation method and application thereof | |
| CN103485234B (en) | A kind of preparation method of blended fiber system aramid paper | |
| CN102864677A (en) | Para-aramid paper and preparation method thereof | |
| CN103572641A (en) | Method for preparing aramid paper from para aramid fibrid as raw material | |
| CN1884692A (en) | Preparation process for manufacturing insulated paper by para position fiber and meta position fiber | |
| CN107287988B (en) | A kind of preparation method of micron/nano composite fiber electric insulation paper | |
| CN103174053A (en) | Production method for aramid fiber 1414 paper substrate material | |
| CN102864676A (en) | Method for preparing para-aramid paper | |
| CN105603802A (en) | Method for preparing high-smoothness poly-m-phenyleneisophthalamide paper for insulation | |
| CN104109984A (en) | Polyoxadiazole fiber paper based on polyoxadiazole fiber, and preparation method thereof | |
| CN113463446A (en) | Preparation method of high-thermal-conductivity composite nano modified insulating paper | |
| CN104631200A (en) | Polyimide fiber paper with potassium titanate whiskers, and preparation method of polyimide fiber paper | |
| CN105350390A (en) | Preparation of corundum fiber insulating paper for transformers | |
| CN105350379A (en) | High breakdown strength transformer insulation paper | |
| CN113684727A (en) | Basalt/aramid paper-based insulating material and production method thereof | |
| CN105086322A (en) | Glyoxal cross-linked polymer modified nano crystalline cellulose as well as preparation method and application thereof | |
| CN102535243B (en) | Method for reinforcing kraft with micro-nano inorganic crystal whiskers and kraft | |
| CN109024094B (en) | Micro-nano cellulose fiber/aramid fiber composite insulating paper and preparation method thereof | |
| CN103147345A (en) | Preparation technology of sealing material used for engines and flanges | |
| CN102953289B (en) | A kind of polyimide resin strengthens the preparation method of meta-position aramid fiber paper | |
| CN108505387A (en) | A kind of production method of mica paper | |
| CN107805975A (en) | A kind of cable composite fibre paper and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |