CN106521709A - Basalt fiber special for reinforcing polyphenylene sulfide material and preparation method of basalt fiber - Google Patents
Basalt fiber special for reinforcing polyphenylene sulfide material and preparation method of basalt fiber Download PDFInfo
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- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
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- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/152—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen having a hydroxy group bound to a carbon atom of a six-membered aromatic ring
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- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
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- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
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- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
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Abstract
The invention discloses a basalt fiber special for reinforcing a polyphenylene sulfide material and a preparation method of the basalt fiber. The basalt fiber is obtained through treatment with a special impregnating agent in the production process, wherein the impregnating agent comprises, by weight, 40-60 parts of a film-forming agent, 5-15 parts of a coupling agent, 1-5 parts of a lubricating agent, 10-20 parts of a modifying agent and 30-50 parts of a solvent, and the modifying agent comprises sulfonate, sulfuric acid and a phenolic compound with the mass ratio of (3-6):(2-4):(1-3). As the surface of the basalt fiber is rough and grated with a large quantity of active groups, the chemical bonding capacity and mechanical riveting capacity between the basalt fiber and the polyphenylene sulfide material are high, the compatibility between the basalt fiber and the polyphenylene sulfide material is good, and the basalt fiber can be added in and applied to the polyphenylene sulfide material in large quantities.
Description
Technical field
The present invention relates to basalt fibre field, and in particular to a kind of polyphenyl thioether material strengthen special basalt fibre and
Its preparation method.
Background technology
Basalt fibre is a kind of emerging novel inorganic environment-friendly and green high performance fibre material, is following China's emphasis
One of four big high-performance fibers of development, it is aoxidized by silicon dioxide, aluminium oxide, calcium oxide, ferrum oxide and titanium dioxide etc.
The basalt building stones of thing composition are prepared from by spinning technique after high-temperature fusion.Basalt continuous fiber is not only stable
Property it is good, but also there are various excellent properties such as electrical insulating property, anticorrosive, flame resistant, high temperature resistant, and, basalt fibre
The garbage that production technology is produced is few, and environmental pollution is little, directly can proceed in ecological environment, without any danger after product abandonment
Evil, thus be a kind of genuine green, environment-friendly materials.Basalt continuous fiber is in fibre reinforced composites, friction
The many aspects such as material, shipbuilding materials, heat-barrier material, automobile industry, high temperature filtration fabric and protection field have been obtained extensively
Application.
Polyphenylene sulfide English is abbreviated as PPS, is a kind of novel high-performance thermoplastic resin, with high mechanical strength, resistance to height
Temperature, chemical proofing, fire retardant, heat stability are good, excellent electrical properties the advantages of；But as polyphenylene sulfide degree of crystallinity is high, cause
There is the low defect of poor toughness, impact strength in polyphenyl thioether material, therefore, pure polyphenylene sulfide material is not used when in use
Material, polyphenyl thioether material need to carry out toughness reinforcing, increase after impact strength etc. strengthens composite modified process and can just be applied.It is existing
The fiber-reinforced modified main employing glass fiber material of modern poly-p-phenylene sulfide ether material and carbon fibre material are modified process, change
Property effect is significant, but glass fibre and carbon fiber production cost be high, environmental pollution is big, seriously limits composite polyphenylene sulfide material
Application, develop a kind of with low cost, environmental protection, the new fiber materials of excellent performance substitute glass fibre and carbon fiber pair
Polyphenyl thioether material is modified the problem of process and is badly in need of being resolved.Therefore, it is possible to, it is envisioned that will be nontoxic, pollution-free, source wide
It will improve polyphenylene sulfide material from now on that general, excellent performance, stably good basalt fibre are used for the enhancing of polyphenyl thioether material
The new trend of material performance.But due to basalt fibre self structure and stable performance, fiber surface is smooth, surface activity site
It is few, with polyphenylene sulfide poor compatibility, cause basalt fibre to be difficult to during enhancing modified and polyphenyl thioether material chemical bond
It is to be individually present in polyphenyl thioether material to close and form unified, stable entirety, i.e. basalt fibre with mechanical riveted, to poly-
The modified potentiation of diphenyl sulfide material is relatively weak, and reinforced effects are not satisfactory, and basalt fibre addition is few.
The content of the invention
It is an object of the invention to overcome the defect of existing basalt fibre and polyphenyl thioether material poor compatibility, there is provided one
Planting polyphenyl thioether material strengthens special basalt fibre and preparation method thereof；Basalt fibre of the present invention is through special wetting agent
Obtained from process in process of production, the basalt fibre as surface roughness is big and is grafted with a large amount of active groups,
Chemical bonding between basalt fibre and polyphenyl thioether material and mechanical riveted ability are strong, the basalt fibre and polyphenylene sulfide
The compatibility of material is good, can add and apply in a large number in polyphenyl thioether material.
In order to realize foregoing invention purpose, the invention provides a kind of polyphenyl thioether material strengthens special basalt fibre
Preparation method, comprises the following steps：
（1）Basalt ore is carried out into pulverization process, basalt ore powder body is obtained；
（2）Step 1 is obtained into powder body heating, melting forms spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing, obtains basalt fibre precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration modification with wetting agent；
（5）The precursor through infiltration modification that step 4 is obtained is carried out moving back solution, and twisted with the fingers, obtaining polyphenyl thioether material strengthens
Special basalt fibre.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, wetting agent bag described in step 4
Include following parts by weight of component：The film former of 40-60 parts, the coupling agent of 5-15 parts, 1-5 part lubricants, the modifying agent of 10-20 parts,
The solvent of 30-50 parts；The wetting agent quickly can carry out burn into activation to basalt fibre surface, form rough surface, and connect
The a large amount of active groups of branch, so as to improve the chemical bonding between basalt fibre and polyphenyl thioether material and mechanical riveted ability,
Improve the compatibility of basalt fibre and polyphenyl thioether material；Described mechanical riveted refers to that matrix material passes through shrinkage stress bag
The fiber of tight rough surface and the frictional engagement that produces.
Above-mentioned wetting agent, wherein described modifying agent includes sulfonate sulfated phenolic compound 3-6 2-4 in mass ratio
The mixture that 1-3 is mixed；Preferably, described modifying agent includes sulfonate sulfated phenolic compound in mass ratio 53
2 mixture for mixing.
Above-mentioned wetting agent, wherein described sulfonate be sodium sulfonate, potassium sulfonate, one or more in sulfamic acid；Its
Described in phenolic compound be phenol, sodium phenate, cresol, amino phenols, one or more in nitrophenols；It is wherein described into
Membrane is ptfe emulsion, the one kind in polyacrylate dispersion；Wherein described coupling agent is containing sulfonate radical, ether
The modified silane coupler of one or more group in base, carboxyl；Wherein described lubricant is methyl stearate and stearic acid
One kind in zinc.
Above-mentioned wetting agent, wherein aqueous solution of the described solvent for glycerol；In the solvent, glycerol with the volume ratio of water is
1-3 1；Preferably, in the aqueous solution of glycerol, glycerol and the volume ratio of water are 21.
A kind of polyphenyl thioether material strengthens the preparation method of special basalt fiber material, and the inventive method is by production process
In the intermediate product basalt fibre precursor that obtains processed with the wetting agent of special component, increase fiber surface roughness
And a large amount of active groups are grafted, contributing to polyphenyl thioether material carries out chemical bonding and mechanical riveted on basalt fibre surface,
So as to directly obtain and the good basalt fibre of the polyphenyl thioether material compatibility；The basalt fibre can be in polyphenyl thioether material
In a large amount of additions and apply.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, profound wherein described in step 1
Military rock and ore diameter of particle is 0.1-2mm, and particle diameter is less, and during heating melting, speed is faster, consumes energy lower, but crushes cost and increase
Preferably, the basalt ore diameter of particle is 0.5-1mm.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, molten wherein described in step 2
Melt temperature for 1100-1500 DEG C, temperature is too low, melting speed is slow, and time-consuming, and power consumption is high, and temperature is too high, high to equipment requirements,
Equipment cost increases；Preferably, the melt temperature is 1250-1350 DEG C.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, the drawing wherein described in step 3
The speed of silk is 1500-3000m/min, and drawing speed is too fast, and tensile stress is excessive, can cause fibrous fracture；Drawing speed mistake
Slowly, the basalt fibre for obtaining is relatively large in diameter, and is unfavorable for the application of basalt fibre.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, profound wherein described in step 3
, at 3-20 μm, precursor diameter is excessive for military rock fiber precursor diameter control, and cooling is slow, causes stress distribution inside and outside fiber not only, fine
Dimension defect is big, is unfavorable for practical application, and precursor diameter is too small, and drawing process operating difficultiess are easily broken off；Preferably, it is described
Basalt fibre precursor diameter control is at 5-10 μm.
A kind of above-mentioned polyphenyl thioether material strengthens the preparation method of special basalt fibre, the leaching wherein described in step 4
, at 50-80 DEG C, temperature is higher, and response speed is faster, and treatment effect is better, but temperature is too high for profit agent temperature control, surface treatment
Extent control is difficult, unstable product quality；Preferably, described wetting agent temperature control is at 60-70 DEG C.
In order to realize foregoing invention purpose, further, the invention provides a kind of polyphenyl thioether material strengthens special profound
Military rock fiber, the polyphenyl thioether material are strengthened special basalt fibre and are prepared by above-mentioned preparation method；Pass through
The polyphenyl thioether material for obtaining prepared by above-mentioned preparation method strengthens special basalt fibre, and surface roughness is big and is grafted with big
Amount active group, the chemical bonding and mechanical riveted ability between basalt fibre and polyphenyl thioether material are strong, with polyphenylene sulfide
The compatibility of material is good, can add and apply in a large number in polyphenyl thioether material.
Compared with prior art, beneficial effects of the present invention：
1st, polyphenyl thioether material of the present invention strengthens the preparation method of special basalt fibre, former to basalt fibre using wetting agent
Silk carries out quick modification, makes fiber surface roughness increase and be grafted a large amount of active groups, contributes to polyphenyl thioether material
Chemical bonding and mechanical riveted are carried out on basalt fibre surface, basalt fibre is improve compatible with polyphenyl thioether material
Property.
2nd, polyphenyl thioether material of the present invention strengthens the preparation method of special basalt fibre, directly using wetting agent to fiber
Precursor is modified process, by the production of fiber and it is modified unite two into one, simplify production stage, saved production cost, contract
The short production cycle.
3rd, polyphenyl thioether material of the present invention strengthens special basalt fibre, and surface roughness is big and is grafted with a large amount of active groups
Group, the chemical bonding and mechanical riveted ability between basalt fibre and polyphenyl thioether material are strong, the phase with polyphenyl thioether material
Capacitive is good, can add and apply in a large number in polyphenyl thioether material.
Specific embodiment
With reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
Scope for above-mentioned theme of the invention is only limitted to below example, and all technologies realized based on present invention belong to this
The scope of invention.
Embodiment 1
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 0.5mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1250 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 2000m/min, obtains a diameter of 5 μm of basalt
Fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 60 DEG C；Wetting agent group
Become：15 weight portions contain the modifying agent that sodium sulfonate phenol sulfuric acid in mass ratio 532 mixes, poly- the four of 50 weight portions
The stearic acid of fluorothene emulsion, the glycerol of 30 weight portions, the water of 10 weight portions, the silane coupler of 10 weight portions and 3 weight portions
Methyl ester；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Embodiment 2
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 1.0mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1350 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 2500m/min, obtains a diameter of 10 μm of the Black Warrior
Rock fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 70 DEG C；Wetting agent group
Become：10 weight portions contain the modifying agent that potassium sulfonate sulphuric acid nitrophenols in mass ratio 321 mix, 60 weight portions it is poly-
The Hard Fat of acrylic acid ester emulsion, the glycerol of 20 weight portions, the water of 20 weight portions, the silane coupler of 15 weight portions and 1 weight portion
Sour zinc；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Embodiment 3
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 0.1mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1100 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 3000m/min, obtains a diameter of 3 μm of basalt
Fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 80 DEG C；Wetting agent group
Become：20 weight portions contain the modifying agent that sulfamic acid sulphuric acid amino phenols mass ratio 343 mixes, 40 weight portions it is poly-
The stearic acid of acrylic acid ester emulsion, the glycerol of 30 weight portions, the water of 20 weight portions, the silane coupler of 5 weight portions and 5 weight portions
Methyl ester；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Embodiment 4
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 2mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1500 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 1500m/min, obtains a diameter of 20 μm of the Black Warrior
Rock fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 50 DEG C；Wetting agent group
Become：10 weight portions contain the modifying agent that potassium sulfonate sulphuric acid cresol in mass ratio 322 mixes, poly- the four of 40 weight portions
The stearic acid of fluorothene emulsion, the glycerol of 20 weight portions, the water of 10 weight portions, the silane coupler of 5 weight portions and 5 weight portions
Zinc；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Comparative example 1
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 0.5mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1250 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 2000m/min, obtains a diameter of 5 μm of basalt
Fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 60 DEG C；Wetting agent group
Become：The ptfe emulsion of 50 weight portions, the glycerol of 30 weight portions, the water of 10 weight portions, 10 weight portions it is silane coupled
Agent and the methyl stearate of 3 weight portions；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, basalt fibre is obtained.
Comparative example 2
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 0.5mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1250 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 2000m/min, obtains a diameter of 5 μm of basalt
Fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 60 DEG C；Wetting agent group
Become：15 weight portions contain the modifying agent that sodium sulfonate phenol sulfuric acid in mass ratio 562 mixes, poly- the four of 50 weight portions
The stearic acid of fluorothene emulsion, the glycerol of 30 weight portions, the water of 10 weight portions, the silane coupler of 10 weight portions and 3 weight portions
Methyl ester；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Comparative example 3
（1）Basalt ore is carried out into pulverization process, the basalt ore powder body that particle diameter is 0.5mm is obtained；
（2）Step 1 is obtained into powder body heating, is melted at a temperature of 1250 DEG C, form spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing under the speed of 2000m/min, obtains a diameter of 5 μm of basalt
Fiber precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration process in the wetting agent that temperature is 60 DEG C；Wetting agent group
Become：15 weight portions contain the modifying agent that sodium sulfonate phenol sulfuric acid in mass ratio 132 mixes, poly- the four of 50 weight portions
The stearic acid of fluorothene emulsion, the glycerol of 30 weight portions, the water of 10 weight portions, the silane coupler of 10 weight portions and 3 weight portions
Methyl ester；
（5）The precursor processed through infiltration that step 4 is obtained is carried out moving back solution, and twisted with the fingers, polyphenyl thioether material enhancing is obtained special
Basalt fibre.
Preparation-obtained basalt fibre in above-described embodiment 1-4 and comparative example 1-3 is carried out into performance test and polyphenyl
Thioether plastics（Tensile strength 58MPa, notch impact strength 32J/m, elongation at break 26%）Strengthen（Basalt fibre consumption is
The 10% of polyphenylene sulfide quality）Experiment, records experimental result, and record data is as follows：
| Numbering | Tensile strength（MPa） | Elongation at break（%） | Modified polyphenylene sulfide plastic notch impact strength（J/m） | Modified polyphenylene sulfide plastic tensile strength（MPa） | Modified polyphenylene sulfide plastic elongation at break（%） |
| Embodiment 1 | 3800 | 2.6 | 74 | 83 | 47 |
| Embodiment 2 | 3810 | 2.4 | 72 | 81 | 48 |
| Embodiment 3 | 3820 | 2.5 | 73 | 82 | 46 |
| Embodiment 4 | 3840 | 2.5 | 72 | 83 | 47 |
| Comparative example 1 | 3840 | 2.7 | 48 | 72 | 34 |
| Comparative example 2 | 3350 | 1.6 | 51 | 68 | 28 |
| Comparative example 3 | 3620 | 2.3 | 53 | 70 | 31 |
Above-mentioned analysis of experimental data is understood, the basalt fibre prepared using technical solution of the present invention in embodiment 1-4
Drawing Shen intensity and elongation at break are good, and the compatibility with polyphenylene sulfide plastic is good, and poly-p-phenylene sulfide ether plastics reinforced effects are notable；And
Wetting agent used in 1 preparation method of comparative example is conventional wetting agent, and the basalt fibre surface for preparing is smooth, active group
Group is few, with polyphenyl thioether material poor compatibility, poly-p-phenylene sulfide weak with the chemical bonding of polyphenyl thioether material and mechanical riveted ability
The effect of ether Material reinforcement is obviously reduced；Wetting agent used in 2 preparation method of comparative example is not the infiltration protected in the present invention
Agent component proportion consumption, sulfuric acid dosage are excessive, and wetting agent is made to basalt fiber construction to basalt fibre surface erosion transition
Into destruction, the tensile strength and elongation at break of basalt fibre is caused to significantly reduce, so as to the enhancing of poly-p-phenylene sulfide ether fiber
Effect is also remarkably decreased；Wetting agent used in 3 preparation method of comparative example is not that the wetting agent component protected in the present invention is matched somebody with somebody
Than consumption, sulfonate consumption is too small, and wetting agent weakens to basalt fibre surface activation, basalt fibre surface grafting
Active group is few, weak with the chemical bonding ability of polyphenyl thioether material, and the effect of poly-p-phenylene sulfide ether Material reinforcement is obviously reduced.
Claims (10)
1. a kind of polyphenyl thioether material strengthens the preparation method of special basalt fibre, it is characterised in that comprise the following steps：
（1）Basalt ore is carried out into pulverization process, basalt ore powder body is obtained；
（2）Step 1 is obtained into powder body heating, melting forms spinning liquation；
（3）The spinning liquation that step 2 is obtained carries out wire drawing, obtains basalt fibre precursor；
（4）The basalt fibre precursor that step 3 is obtained carries out infiltration modification with wetting agent；
（5）The precursor through infiltration modification that step 4 is obtained is carried out moving back solution, and twisted with the fingers, obtaining polyphenyl thioether material strengthens
Special basalt fibre；
The wetting agent includes following parts by weight of component：The film former of 40-60 parts, the coupling agent of 5-15 parts, 1-5 part lubricants,
The modifying agent of 10-20 parts, the solvent of 30-50 parts；Modifying agent includes the sulfonate that mass ratio is 3-6 2-4 1-3, sulphuric acid, phenols
Compound.
2. preparation method according to claim 1, it is characterised in that melt temperature is controlled in 1100-1500 in step 2
℃。
3. preparation method according to claim 1, it is characterised in that basalt fibre precursor diameter control exists in step 3
3-20μm。
4. preparation method according to claim 1, it is characterised in that the sulfonate is sodium sulfonate, potassium sulfonate, amino sulphur
One or more in acid.
5. preparation method according to claim 1, it is characterised in that the phenolic compound is phenol, sodium phenate, first
One or more in phenol, amino phenols, nitrophenols.
6. preparation method according to claim 1, it is characterised in that the film former be ptfe emulsion, poly- third
One kind in olefin(e) acid ester emulsion.
7. preparation method according to claim 1, it is characterised in that the coupling agent is containing sulfonate radical, ether, carboxyl
In one or more group modified silane coupler.
8. preparation method according to claim 1, it is characterised in that aqueous solution of the solvent for glycerol.
9. preparation method according to claim 1, it is characterised in that wetting agent temperature control is at 50-80 DEG C in step 4.
10. a kind of polyphenyl thioether material strengthens special basalt fibre, it is characterised in that be by any one of claim 1-9
What described preparation method was prepared.
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| CN108975731A (en) * | 2018-09-20 | 2018-12-11 | 黄勇 | A kind of preparation method of glass fiber infiltration agent |
| CN109320962A (en) * | 2018-09-13 | 2019-02-12 | 丹阳市三能电器配件有限公司 | PPS composite material and preparation method for air-conditioning supplementary heating element bracket |
| CN112934161A (en) * | 2021-01-28 | 2021-06-11 | 嘉兴京能科技有限责任公司 | Modified corrosion-resistant PEEK filler material for rectifying tower and production method and application thereof |
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| CN106521709B (en) | 2018-11-09 |
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