CN105907006A - Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof - Google Patents
Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof Download PDFInfo
- Publication number
- CN105907006A CN105907006A CN201610473168.3A CN201610473168A CN105907006A CN 105907006 A CN105907006 A CN 105907006A CN 201610473168 A CN201610473168 A CN 201610473168A CN 105907006 A CN105907006 A CN 105907006A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- magnetic
- steel fibre
- gained
- graphene
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a magnetic carbon fiber, a steel fiber modified polytetrafluoroethylene material and a preparation method thereof. The magnetic carbon fiber is characterized in that the steel fiber and the carbon fiber are used for increasing the tensile strength and friction performance of polytetrafluoroethylene, the improved melting method is utilized to sinter the fine padding, such as SiO2, Al powder, onto the surface of polytetrafluoroethylene at high temperature, the surface sintered state of polytetrafluoroethylene is improved and the bonding strength is obviously increased. Besides, the magnetic particle is adopted, so that the magnetic property of the composite material is increased and the composite material is more widely applied to the field of sealant, sensors, biomedicine, and the like.
Description
Technical field
The present invention relates to carbon fiber, steel fiber surface modification and modified materials of polytetrafluoroethyland field, particularly relate to the carbon fiber of a kind of magnetic, steel fibre modified teflon material and preparation method thereof.
Background technology
Politef (PTFE) is high temperature resistant and low temperature, resistance to chemical attack, do not absorb water, coefficient of friction is low, dielectric properties are excellent, have " King ". but be because surface energy low (surface tension is called (31～34) × 10-3 N/m), degree of crystallinity height and molecular chain structure symmetry and present nonpolar, cause makes it difficult to be bondd, and restricts its application at valve seal Material Field.For this, scientist takes multiple means to attempt solving the surface adhesion problem of PTFE, wherein more about the surface texture or property Quality Research changing PTFE. mainly have: 1) method of chemical treatment, as processed with sodium-naphthalene complex or silicic acid, PTFE moistened surface angle is made to reduce, surface tension improves, make it can be glued .2 by viscous being changed into of difficulty) lower temperature plasma technology process, by air, noble gas and can reacting gas dissociation, have an effect with PTFE surface, form polar group.3) radiation graft process, uses the energy of Co 60 that reaction monomers, with PTFE surface, styrene, methacrylate etc. can be occurred chemical grafting polymerization, forms one layer of graft polymers being prone to bonding on PTFE surface.4) high-temperature melting method, at high temperature making to embed surface in PTFE can adhesion substance high, easy.This method gets involved in PTFE molecule due to easy adhesive material, can reach adhesion strength more higher than other several methods.
But PTFE there is also, and creep resistance is poor, easy-cold flow, resilience are poor, bearing capacity is low, linear expansion coefficient is big, the distinct disadvantage such as easy softening under high temperature (260 DEG C).In order to overcome these shortcomings, researcher typically uses carbon fiber, glass fibre, tin bronze powder, graphite, sulfur dioxide etc. to carry out filled polytetrafluoroethylene as encapsulant both at home and abroad, wherein carbon fiber is the packing material that Application comparison is extensive and respond well, department of physics's energy of PTFE composite, mechanical property, anti-wear performance etc. can be improved, can be widely applied to the industries such as hydraulic jack, cylinder seal element, valve seal element, Fluid-transmission machinery.Same, steel fibre is big due to its density, excellent in mechanical performance and be widely used in every field.
But steel fibre and carbon fiber surface inertia are big, directly affects the mechanical property of composite, limit steel fibre and the high performance performance of carbon fiber.It is thus desirable to be modified carbon fiber and steel fiber surface processing, to improve its caking property to matrix, improve interface performance.
Magnetic-particle is not the most widely used in the fields such as sealant, sensor, biomedicine, so being incorporated in the modification of politef by magnetic-particle, will widen the application of modified materials of polytetrafluoroethyland.
Summary of the invention
The technical problem that present invention mainly solves is to provide the formula of a kind of modified teflon material, and the polytetrafluoroethylmaterial material viscosity, wearability and the sealing that make according to this formula are good, and have magnetic.
The technical problem to be solved uses following technical scheme to realize:
1. the carbon fiber of a magnetic, steel fibre modified teflon material, it is characterised in that prepared by the raw material of following weight parts:
Magnetic iron ore 15-20, politef 80-90, carbon fiber 10-15, steel fibre 5-10, fluorine rubber powder 5-10, ferrum oxide 5-10, graphene oxide 1-3, SiO25-10, Silane coupling agent KH550 15-20,0.1 mol/L citric acid 20-30, acetone 20-25,95% ethanol 30-40, acetic acid is appropriate, polyisocyanate JQ-1 5-10, dimethylformamide (DMF) 15-20, DMAP (DMAP) 10-15, dicyclohexylcarbodiimide (DCC) 15-20, water 90-100 part；
Described carbon fiber median length is 75-150 μm, and steel fibre median length is 50-150 μm, and fluorine rubber powder granularity is 80-200 mesh.
2. a kind of magnetic carbon fiber described in, the preparation method of steel fibre modified teflon material, it is characterised in that be made up of step in detail below:
A. being added by carbon fiber in the alcohol solvent of 20-25 part 95%, ultrasonic disperse is uniform, and adding second acid for adjusting pH is 4-5, adds 8-12 part Silane coupling agent KH550, stirs 8-15h, is washed with deionized afterwards, vacuum drying；
B., in remaining 95% alcohol solvent, by glow discharge plasma technology, graphene oxide is oxidized to peroxidating Graphene；
C. peroxidating Graphene step b obtained joins in dimethylformamide (DMF), ultrasonic 2～3h, stirring, it is sequentially added into 4-dimethylamino naphthyridine (DMAP), dicyclohexylcarbodiimide (DCC) and the carbon fiber of step a gained, normal-temperature reaction 18-36h, it is washed with deionized afterwards, vacuum drying, obtains the carbon fiber after the grafting of peroxidating Graphene；
D. joining in polyisocyanate JQ-1 by rubber powder, after mechanical agitation is uniform, add the steel fibre being dried, continued mechanical stirs 1-3 hour, washing, dry；
E. magnetic iron ore and ferrum oxide are joined in citric acid solution, after stirring is reacted 1-3 minute, with washing with acetone magnetic iron ore and ferrum oxide, standby after vacuum drying.
F. carbon fiber, step d gained mixture, the magnetic iron ore of step e gained and the ferrum oxide after being grafted by step c gained peroxidating Graphene arises from high-speed mixer with the politef one of 70-75 part mixs homogeneously, after cold moudling, 360-390 DEG C of sinter molding in air atmosphere；Obtain diameter 150-250 mm, the plate tensile sample of thickness 3～4mm；
G. the plate tensile sample of step e gained is immersed in lotion, take out after 4-8 minute, after drying in the baking oven of 80-100 DEG C, be put in Muffle furnace and sinter 10-30 minute at a temperature of 120-200 DEG C, take out；
The compound method of described lotion is: SiO2After ground machine grinds, being dispersed in water together with remaining politef and remaining Silane coupling agent KH550, ultrasonic disperse uniformly and get final product.
The invention has the beneficial effects as follows: the carbon fiber surface surface roughness after grafted graphene oxide dramatically increases, and then improves its surface wettability and caking property, improves the interface bond quality of carbon fibre composite.The steel fibre processed by polyisocyanate JQ-1 bonds together with rubber powder and polyisocyanate JQ-1, adds steel fibre in the raising of the caking property of matrix, beneficially composite materials property.Further, by high-temperature melting method by SiO2It is filled into PTFE surface, can substantially carry the glue-joint strength of carbon fiber PTFE composite, and operating procedure is simple, it is easy to use.Wherein the modified materials of polytetrafluoroethyland application in the field such as sensor, biomedicine has been widened in the addition of magnetic-particle.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with specific embodiment, the present invention is expanded on further。
Embodiment
The carbon fiber of a kind of magnetic, steel fibre modified teflon material, it is characterised in that prepared by the raw material of following weight parts:
Magnetic iron ore 15, politef 80, carbon fiber 10, steel fibre 5, fluorine rubber powder 5, ferrum oxide 5, graphene oxide 1, SiO25, Silane coupling agent KH550 15,0.1 mol/L citric acid 20, acetone 20,95% ethanol 30, acetic acid is appropriate, polyisocyanate JQ-1 5, dimethylformamide (DMF) 15, DMAP (DMAP) 10, dicyclohexylcarbodiimide (DCC) 15,100 parts of water；
Described carbon fiber median length is 75-150 μm, and steel fibre median length is 50-150 μm, and fluorine rubber powder granularity is 80-200 mesh.
Described a kind of magnetic carbon fiber, the preparation method of steel fibre modified teflon material, it is characterised in that be made up of step in detail below:
A. being added by carbon fiber in the alcohol solvent of 23 part 95%, ultrasonic disperse is uniform, and adding second acid for adjusting pH is 4-5, adds 10 parts of Silane coupling agent KH550s, stirs 8-15h, is washed with deionized afterwards, vacuum drying；
B., in remaining 95% alcohol solvent, by glow discharge plasma technology, graphene oxide is oxidized to peroxidating Graphene；
C. peroxidating Graphene step b obtained joins in dimethylformamide (DMF), ultrasonic 2～3h, stirring, it is sequentially added into 4-dimethylamino naphthyridine (DMAP), dicyclohexylcarbodiimide (DCC) and the carbon fiber of step a gained, normal-temperature reaction 18-36h, it is washed with deionized afterwards, vacuum drying, obtains the carbon fiber after the grafting of peroxidating Graphene；
D. joining in polyisocyanate JQ-1 by rubber powder, after mechanical agitation is uniform, add the steel fibre being dried, continued mechanical stirs 1-3 hour, washing, dry；
E. magnetic iron ore and ferrum oxide are joined in citric acid solution, after stirring is reacted 1-3 minute, with washing with acetone magnetic iron ore and ferrum oxide, standby after vacuum drying.
F. carbon fiber, step d gained mixture, the magnetic iron ore of step e gained and ferrum oxide and the politef one of 70 parts after being grafted by step c gained peroxidating Graphene arise from mix homogeneously in high-speed mixer, after cold moudling, 360-390 DEG C of sinter molding in air atmosphere；Obtain diameter 150-250 mm, the plate tensile sample of thickness 3～4mm；
G. the plate tensile sample of step e gained is immersed in lotion, take out after 4-8 minute, after drying in the baking oven of 80-100 DEG C, be put in Muffle furnace and sinter 10-30 minute at a temperature of 120-200 DEG C, take out；
The compound method of described lotion is: SiO2After ground machine grinds, being dispersed in water together with remaining politef and remaining Silane coupling agent KH550, ultrasonic disperse uniformly and get final product.
After tested:
Hot strength 21MPa；
Elongation at break 208%；
Impact strength 25KJ/m；
Bending strength 28MPa.
Claims (2)
1. the carbon fiber of a magnetic, steel fibre modified teflon material, it is characterised in that prepared by the raw material of following weight parts:
Magnetic iron ore 15-20, politef 80-90, carbon fiber 10-15, steel fibre 5-10, fluorine rubber powder 5-10, ferrum oxide 5-10, graphene oxide 1-3, SiO25-10, Silane coupling agent KH550 15-20,0.1 mol/L citric acid 20-30, acetone 20-25,95% ethanol 30-40, acetic acid is appropriate, polyisocyanate JQ-1
5-10, dimethylformamide (DMF) 15-20, DMAP (DMAP)
10-15, dicyclohexylcarbodiimide
(DCC) 15-20, water 90-100 part；
Described carbon fiber median length is 75-150 μm, and steel fibre median length is 50-150 μm, and fluorine rubber powder granularity is 80-200 mesh.
A kind of magnetic carbon fiber the most according to claim 1, the preparation method of steel fibre modified teflon material, it is characterised in that be made up of step in detail below:
A. being added by carbon fiber in the alcohol solvent of 20-25 part 95%, ultrasonic disperse is uniform, and adding second acid for adjusting pH is 4-5, adds 8-12 part Silane coupling agent KH550, stirs 8-15h, is washed with deionized afterwards, vacuum drying；
B., in remaining 95% alcohol solvent, by glow discharge plasma technology, graphene oxide is oxidized to peroxidating Graphene；
C. peroxidating Graphene step b obtained joins in dimethylformamide (DMF), ultrasonic 2～3h, stirring, it is sequentially added into 4-dimethylamino naphthyridine (DMAP), dicyclohexylcarbodiimide (DCC) and the carbon fiber of step a gained, normal-temperature reaction 18-36h, it is washed with deionized afterwards, vacuum drying, obtains the carbon fiber after the grafting of peroxidating Graphene；
D. joining in polyisocyanate JQ-1 by rubber powder, after mechanical agitation is uniform, add the steel fibre being dried, continued mechanical stirs 1-3 hour, washing, dry；
E. magnetic iron ore and ferrum oxide are joined in citric acid solution, after stirring is reacted 1-3 minute, with washing with acetone magnetic iron ore and ferrum oxide, standby after vacuum drying；
F. carbon fiber, step d gained mixture, the magnetic iron ore of step e gained and the ferrum oxide after being grafted by step c gained peroxidating Graphene arises from high-speed mixer with the politef one of 70-75 part mixs homogeneously, after cold moudling, 360-390 DEG C of sinter molding in air atmosphere；Obtain diameter 150-250 mm, the plate tensile sample of thickness 3～4mm；
G. the plate tensile sample of step e gained is immersed in lotion, take out after 4-8 minute, after drying in the baking oven of 80-100 DEG C, be put in Muffle furnace and sinter 10-30 minute at a temperature of 120-200 DEG C, take out；
The compound method of described lotion is:
SiO2After ground machine grinds, being dispersed in water together with remaining politef and remaining Silane coupling agent KH550, ultrasonic disperse uniformly and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610473168.3A CN105907006A (en) | 2016-06-23 | 2016-06-23 | Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610473168.3A CN105907006A (en) | 2016-06-23 | 2016-06-23 | Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105907006A true CN105907006A (en) | 2016-08-31 |
Family
ID=56758533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610473168.3A Withdrawn CN105907006A (en) | 2016-06-23 | 2016-06-23 | Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105907006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990204A (en) * | 2017-05-19 | 2017-07-28 | 云南中烟工业有限责任公司 | The Pressure chamber and its encapsulating method of a kind of cigarette smoking machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010556A (en) * | 2010-10-20 | 2011-04-13 | 上海倍夫克阀门有限公司 | Composite material for valve seal and preparation method thereof |
| CN105239357A (en) * | 2015-08-24 | 2016-01-13 | 哈尔滨工业大学 | Method of chemically-grafting graphene oxide onto surface of carbon fiber |
-
2016
- 2016-06-23 CN CN201610473168.3A patent/CN105907006A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010556A (en) * | 2010-10-20 | 2011-04-13 | 上海倍夫克阀门有限公司 | Composite material for valve seal and preparation method thereof |
| CN105239357A (en) * | 2015-08-24 | 2016-01-13 | 哈尔滨工业大学 | Method of chemically-grafting graphene oxide onto surface of carbon fiber |
Non-Patent Citations (1)
| Title |
|---|
| 杨秀英等: "表面处理对钢纤维/回收聚乙烯复合材料性能影响", 《齐齐哈尔大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990204A (en) * | 2017-05-19 | 2017-07-28 | 云南中烟工业有限责任公司 | The Pressure chamber and its encapsulating method of a kind of cigarette smoking machine |
| CN106990204B (en) * | 2017-05-19 | 2023-09-26 | 云南中烟工业有限责任公司 | Pressure bin for cigarette smoking machine and sealing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105949688A (en) | Carbon nano tube/polytetrafluoroethylene composite material and preparation method thereof | |
| CN105936724A (en) | Polyether-ether-ketone modified polytetrafluoroethylene material and preparation method thereof | |
| CN109796725B (en) | Nano SiO chemically grafted on carbon fiber surface2Reinforced polyether-ether-ketone composite material and preparation method thereof | |
| JP6868876B2 (en) | Aramid epoxy resin and its manufacturing method | |
| CN103665851A (en) | Fiber-reinforced polyamide composite material, gear and manufacturing method for gear | |
| CN106009433A (en) | Wear-resistant fireproof carbon fiber and steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN106009432A (en) | Fluorescent carbon fiber and steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN105542400A (en) | Nucleation modification method of polyester elastomer for optical cable loose tube | |
| CN113773458A (en) | Modification treatment method of chopped glass fibers | |
| CN106117923A (en) | A kind of polytetrafluoroethylmaterial material with self-cleaning function and preparation method thereof | |
| CN107556699B (en) | A kind of high-strength high-toughness epoxy resin composite material and preparation method | |
| CN105907001A (en) | Activation-treated carbon fiber and steel fiber-modified polytetrafluoroethylene material and preparation method thereof | |
| CN106046637A (en) | Ti3SiC2/Ti3AlC2-containing polytetrafluoroethylene composite material and preparation method thereof | |
| CN105907006A (en) | Magnetic carbon fiber, steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN106084585A (en) | Antibacterial polytetrafluoroethylene composite material and preparation method thereof | |
| CN111171271B (en) | Preparation method of heat-resistant polyurethane elastomer | |
| CN105907002A (en) | Anti-radiation carbon fiber and steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN105936725A (en) | Self-adhesive carbon fiber and steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN105907007A (en) | Bleaching bead-modified polytetrafluoroethylene material and preparation method thereof | |
| CN105907000A (en) | Polytetrafluoroethylene composite material with antistatic function and preparation method thereof | |
| CN111518344A (en) | Preparation method of low-temperature-resistant polyvinyl chloride composite material | |
| CN105907004A (en) | Composite material containing para-position aromatic amide fiber polytetrafluoroethylene and preparation method thereof | |
| CN106084587A (en) | Sound-absorbing carbon fiber and steel fiber modified polytetrafluoroethylene material and preparation method thereof | |
| CN113528079B (en) | Silicone sealant for PP (polypropylene) material and preparation method thereof | |
| CN106084588A (en) | Polytetrafluoroethylene/barium sulfate composite material 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160831 |
|
| WW01 | Invention patent application withdrawn after publication |