CN101058658A - Black polytetrafluoroethene line and preparation technique - Google Patents
Black polytetrafluoroethene line and preparation technique Download PDFInfo
- Publication number
- CN101058658A CN101058658A CN 200610154441 CN200610154441A CN101058658A CN 101058658 A CN101058658 A CN 101058658A CN 200610154441 CN200610154441 CN 200610154441 CN 200610154441 A CN200610154441 A CN 200610154441A CN 101058658 A CN101058658 A CN 101058658A
- Authority
- CN
- China
- Prior art keywords
- black
- polytetrafluoroethenline
- line
- tetrafluoroethylene
- matrix
- 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.)
- Pending
Links
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Materials For Medical Uses (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a sealing device and technique, in particular to a black polytetrafluoroethylene line and making technique, which consists of 80%-95% polytetrafluoroethylene and 5%-20% colloidal graphite powder. the making technique comprises the following steps: blending the dispersing material of polytetrafluoroethylene, colloidal graphite powder, plane kerosene or solvent petrol under normal temperature; ripening; thrusting; rolling; de-oiling; extending; folding; shaping to form the product with breadth at 1. 0mm-5. 0mm and thickness at 1. 0mm-3. 0mm.
Description
Technical field
The present invention relates to a kind of tightness system and technology, especially relate to a kind of black polytetrafluoroethenline line and preparation technology.
Background technology
At present, sealing member adopts line, pad and the packing ring that single fluoroplastics (as tetrafluoroethylene, perfluoroethylene-propylene), paronite or organo-silicone rubber are made as sealing material more.Line, pad and the packing ring of paronite, organo-silicone rubber class material, the weighting material stochastic distribution, only has intensity in some direction at low relatively tensile strength, and creep-resistant property is poor, and easily aging, and work-ing life is short.Chinese patent discloses a kind of working method (publication number: CN1760417A) of Teflon line with high content of graphite, it is with polytetrafluoroethyldispersion dispersion resin, superfine graphite micro mist and high temperature resistant silicone oil carry out proportioning by 10: 2.0～2.5: 2.5～3.5 weight ratio, wherein the fineness of superfine graphite micro mist is 1500 orders～3000 orders, add then and mix stirring in the agitator, temperature is 20 ℃～25 ℃, churning time is each 0.5 hour～1 hour, to stir intact compound again and be molded into tetrafluoroethylene cartridge type blank through hydropress, density is controlled at 0.8g/cm
3～1.2g/cm
3Tetrafluoroethylene cartridge type blank is put into airtight container, in temperature is heating 8 hours～12 hours in the thermostatic drying chamber under 60 ℃～80 ℃, carry out slaking, tetrafluoroethylene cartridge type blank with slaking is extruded into the tetrafluoroethylene of strip or bar-shaped tetrafluoroethylene by extrusion mould then, the tetrafluoroethylene size control of strip is at 10mm～50mm * 2mm～5mm, bar-shaped tetrafluoroethylene size control is at φ 3mm～φ 10mm, tetrafluoroethylene or bar-shaped tetrafluoroethylene with strip is rolled into the thin bar of the thick tetrafluoroethylene of 0.2mm～0.5mm again, the tetrafluoroethylene that will approach strip again heats stretching by heating stretching equipment, Heating temperature is 100 ℃～200 ℃, the teflin tape that obtains is through twisting, shaping, polishing, last ingot is high graphite polytetrafluoroethylene wire.But the polytetrafluoroethylene wire of producing in this way all is to divide bulk cargo and common natural graphite powder copolymerization to form by common tetrafluoroethylene, thereby cause graphite polytetrafluoroethylene wire or the fiber graphite skewness produced by this technology, content of graphite is few, and in use the capacity of heat transmission is inhomogeneous and influence sealing effectiveness also to make simultaneously the filler that formed by this line or fibrous woven.
Summary of the invention
The purpose of this invention is to provide a kind of black polytetrafluoroethenline line and preparation technology, it mainly is that the polytetrafluoroethylene wire that the solution existing in prior technology is produced all is to divide bulk cargo and common natural graphite powder copolymerization to form by common tetrafluoroethylene, thereby cause graphite polytetrafluoroethylene wire or the fiber graphite skewness produced by this technology, the problem that content of graphite is few; The present invention has also solved the filler that formed by this line or fibrous woven, and in use the capacity of heat transmission is inhomogeneous and influence the technical problem of sealing effectiveness etc.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
Black polytetrafluoroethenline line of the present invention is characterized in that its composition and mass percent are: tetrafluoroethylene 80%～95%, oildag powder 5%～20%.Adopt the oildag powder, make that Graphite Powder 99 content is higher in the black polytetrafluoroethenline line, and be evenly distributed.The oildag powder is commercially available Graphite Powder 99 and glue blended product.
As preferably, described black polytetrafluoroethenline line is formed and mass percent is: tetrafluoroethylene 80%～85%, oildag powder 15%～20%.
As preferably, described black polytetrafluoroethenline line is formed and mass percent is: tetrafluoroethylene 81%, oildag powder 19%.
A kind of black polytetrafluoroethenline line is characterized in that its composition and mass percent are: tetrafluoroethylene 70%～90%, oildag powder 5%～20%, high temperature resistant silicone oil or paraffin oil 5%～20%.In tetrafluoroethylene and oildag powder, mix high temperature resistant silicone oil or paraffin oil, can be so that black polytetrafluoroethenline line plays lubricated, resistant to elevated temperatures effect when weaving into packing.The heatproof of high temperature resistant silicone oil is 300～400 ℃, and the paraffin oil heatproof is 250～300 ℃.
As above-mentioned preferred, black polytetrafluoroethenline line is formed and mass percent is: tetrafluoroethylene 70%～80%, oildag powder 10%～20%, high temperature resistant silicone oil or paraffin oil 10%～20%; More preferably: tetrafluoroethylene 71%, oildag powder 19%, high temperature resistant silicone oil or paraffin oil 10%.High temperature resistant silicone oil can add in when batching, and high temperature resistant paraffin oil is infuse again behind finished product then.
As preferably, the fineness of described oildag powder is 5000～15000 orders.The fineness of general oildag powder can be 10000～13000 orders.
The preparation technology of black polytetrafluoroethenline line of the present invention is characterized in that:
A. the tetrafluoroethylene after will screening divides bulk cargo, oildag powder as matrix, and its mass ratio is 4～19: 1, adds aviation kerosene or industrial naptha simultaneously as auxiliary agent, mixes under the normal temperature;
B. the matrix after will stirring carries out slaking, then the matrix after the slaking is pushed, rolls;
C. the black polytetrafluoroethenline band after the calendering is carried out de-oiling;
D. stretch, go out the finished product black polytetrafluoroethenline line, its live width 1.0mm～thick 1.0mm～3.0mm of 5.0mm line after the folding setting.
Can use fixed grit to divide bulk cargo, oildag powder to screen to tetrafluoroethylene.Tetrafluoroethylene divides bulk cargo, oildag powder, aviation kerosene or industrial naptha can put into glass or plastic containers normal temperature stirs down, oozes to reach highly mutually.
As preferably, divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the described screening, add high temperature resistant silicone oil after the emulsification and aviation kerosene or industrial naptha simultaneously as auxiliary agent, mix under the normal temperature.Industrial naptha can be No. 200 industrial napthas.
As preferably, described churning time is 5～40 minutes, and the curing time is 10～24 hours, and the pushing temperature is 20 ℃～120 ℃, 40 ℃～120 ℃ of rolling temperatures.Slaking can be operated in baking oven, and the material after the pushing can roll in rolling press, and the stack diameter is φ 150～φ 500mm.
As preferably, the described de-oiling time is 3 hours～20 hours.De-oiling can be carried out in baking oven, aviation kerosene or industrial naptha can be vapored away, and makes not contain these auxiliary agents in the finished product.
As preferably, described folding being shaped to: the black polytetrafluoroethenline line after will stretching is by its medullary ray doubling, and by the new medullary ray doubling that forms, hot pressing formalizes again.Folding setting also can be by its medullary ray doubling more than twice.
Therefore, it is to divide bulk cargo, special oildag powder adding kerosene or industrial naptha to mix by tetrafluoroethylene that the present invention has the polytetrafluoroethylene wire of producing, the black polytetrafluoroethenline line Graphite Distribution of being produced by this technology is even, the characteristics that content of graphite is higher; The present invention also has the filler that is formed by weaving by this line, and in use the capacity of heat transmission is even, and sealing effectiveness is better, and flexibility is good, and the heatproof height is anticorrosive, creep resistance, characteristics such as simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is a kind of A-A cross-sectional view of Fig. 1.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 80%, oildag powder 20%, the fineness of oildag powder is 15000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, add simultaneously and have good penetrability and volatile aviation kerosene, put under glass or the plastic containers normal temperature and mix as auxiliary agent; Churning time is 40 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 24 hours; Then the matrix after the slaking is pushed, the pushing temperature is 120 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 500mm, and the stack temperature is 120 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 20 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 5mm, the thick 2mm of line with black polytetrafluoroethenline line 1.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 387.1, and heatproof is-100～280 ℃, and linear velocity is 0～20, and pH value is 0～14.
Embodiment 2: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 81%, oildag powder 19%, the fineness of oildag powder is 13000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, add simultaneously and have good penetrability and volatile aviation kerosene, put under glass or the plastic containers normal temperature and mix as auxiliary agent; Churning time is 35 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 22 hours; Then the matrix after the slaking is pushed, the pushing temperature is 115 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 350mm, and the stack temperature is 110 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 19 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 4mm, the thick 2mm of line with black polytetrafluoroethenline line 1.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 362.5, and heatproof is-100～280 ℃, and linear velocity is 0～10, and pH value is 0～14.
Embodiment 3: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 85%, oildag powder 15%, the fineness of oildag powder is 10000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, add simultaneously and have good penetrability and volatile No. 200 industrial napthas, put under glass or the plastic containers normal temperature and mix as auxiliary agent; Churning time is 30 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 15 hours; Then the matrix after the slaking is pushed, the pushing temperature is 20 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 150mm, and the stack temperature is 40 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 5 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 2.5mm, the thick 1.5mm of line with black polytetrafluoroethenline line 1.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 387.1, and heatproof is-100～280 ℃, and linear velocity is 0～20, and pH value is 0～14.
Embodiment 4: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 95%, oildag powder 5%, the fineness of oildag powder is 5000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, interpolation simultaneously has good penetrability and volatile No. 200 industrial napthas are auxiliary agent, puts under glass or the plastic containers normal temperature to mix; Churning time is 5 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 10 hours; Then the matrix after the slaking is pushed, the pushing temperature is 40 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 200mm, and the stack temperature is 40 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 5 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 2.5mm, the thick 1.5mm of line with black polytetrafluoroethenline line 1.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 422.5, and heatproof is-100～260 ℃, and linear velocity is 0～10, and pH value is 0～14.
Embodiment 5: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 71%, oildag powder 19%, high temperature resistant silicone oil 10%, the fineness of oildag powder is 5000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, add the high temperature resistant silicone oil after the emulsification simultaneously and have good penetrability and volatile No. 200 industrial napthas are auxiliary agent, put under glass or the plastic containers normal temperature to mix; Churning time is 20 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 20 hours; Then the matrix after the slaking is pushed, the pushing temperature is 50 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 200mm, and the stack temperature is 80 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 16 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 2mm, the thick 1mm of line with black polytetrafluoroethenline line 1.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 422.5, and heatproof is-100～260 ℃, and linear velocity is 0～10, and pH value is 0～14.
Embodiment 6: the black polytetrafluoroethenline line that this is routine, and its composition and mass percent are: tetrafluoroethylene 71%, oildag powder 19%, paraffin oil 10%, the fineness of oildag powder is 5000 orders.
The technical process for preparing this black polytetrafluoroethenline line is:
A. divide bulk cargo, oildag powder as matrix the tetrafluoroethylene after the screening after the fixed grit screening, interpolation simultaneously has good penetrability and volatile No. 200 industrial napthas are auxiliary agent, puts under glass or the plastic containers normal temperature to mix; Churning time is 20 minutes;
B. the matrix after will stirring is put into baking oven and is carried out slaking, and the curing time is 20 hours; Then the matrix after the slaking is pushed, the pushing temperature is 50 ℃; Material after will pushing then rolls in rolling press, and the stack diameter is 200mm, and the stack temperature is 80 ℃;
C. the black polytetrafluoroethenline band after will rolling is put into baking oven and is carried out de-oiling, and the de-oiling time is 16 hours;
D. fold setting after stretching, folding being shaped to: by its medullary ray doubling, again by the new medullary ray doubling once more that forms, the hot pressing setting goes out the finished product black polytetrafluoroethenline line, its live width 2mm, the thick 1mm of line with black polytetrafluoroethenline line 1.
E. the finished product black polytetrafluoroethenline line is immersed in the paraffin oil, until paraffin oil attached to black polytetrafluoroethenline line on.
The black polytetrafluoroethenline line of producing is black, and as Fig. 1, Fig. 2, fracture enlongation rate is 422.5, and heatproof is-100～260 ℃, and linear velocity is 0～10, and pH value is 0～14.
Claims (10)
1. a black polytetrafluoroethenline line is characterized in that its composition and mass percent are: tetrafluoroethylene 80%～95%, oildag powder 5%～20%.
2. black polytetrafluoroethenline line according to claim 1 is characterized in that described composition and mass percent are: tetrafluoroethylene 80%～85%, oildag powder 15%～20%.
3. black polytetrafluoroethenline line according to claim 2 is characterized in that described composition and mass percent are: tetrafluoroethylene 81%, oildag powder 19%.
4. a black polytetrafluoroethenline line is characterized in that its composition and mass percent are: tetrafluoroethylene 70%～90%, oildag powder 5%～20%, high temperature resistant silicone oil or paraffin oil 5%～20%.
5. according to claim 1 or 2 or 3 or 4 described black polytetrafluoroethenline lines, the fineness that it is characterized in that described oildag powder is 5000～15000 orders.
6. the preparation technology of a black polytetrafluoroethenline line is characterized in that:
A. the tetrafluoroethylene after will screening divides bulk cargo, oildag powder as matrix, and its mass ratio is 4～19: 1, adds aviation kerosene or industrial naptha simultaneously as auxiliary agent, mixes under the normal temperature;
B. the matrix after will stirring carries out slaking, then the matrix after the slaking is pushed, rolls;
C. the black polytetrafluoroethenline band after the calendering is carried out de-oiling;
D. stretch, go out the finished product black polytetrafluoroethenline line, its live width 1.0mm～thick 1.0mm～3.0mm of 5.0mm line after the folding setting.
7. the preparation technology of black polytetrafluoroethenline line according to claim 6, it is characterized in that dividing bulk cargo, oildag powder as matrix the tetrafluoroethylene after the described screening, add high temperature resistant silicone oil after the emulsification and aviation kerosene or industrial naptha simultaneously as auxiliary agent, mix under the normal temperature.
8. the preparation technology of black polytetrafluoroethenline line according to claim 6 is characterized in that described churning time is 5～40 minutes, and the curing time is 10～24 hours, and the pushing temperature is 20 ℃～120 ℃, 40 ℃～120 ℃ of rolling temperatures.
9. the preparation technology of black polytetrafluoroethenline line according to claim 6 is characterized in that the described de-oiling time is 3 hours～20 hours.
10. the preparation technology of black polytetrafluoroethenline line according to claim 6 is characterized in that described folding being shaped to: the black polytetrafluoroethenline line after will stretching (1) is by its medullary ray doubling, and by the new medullary ray doubling that forms, hot pressing formalizes again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610154441 CN101058658A (en) | 2006-10-27 | 2006-10-27 | Black polytetrafluoroethene line and preparation technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610154441 CN101058658A (en) | 2006-10-27 | 2006-10-27 | Black polytetrafluoroethene line and preparation technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101058658A true CN101058658A (en) | 2007-10-24 |
Family
ID=38864972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610154441 Pending CN101058658A (en) | 2006-10-27 | 2006-10-27 | Black polytetrafluoroethene line and preparation technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101058658A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103254533A (en) * | 2013-06-14 | 2013-08-21 | 中材科技股份有限公司 | Preparation method of polytetrafluoroethylene film doped with conducting particles |
| CN103372980A (en) * | 2012-04-17 | 2013-10-30 | 夏华松 | Processing method of high-mesh graphite hexafluoropropylene wire |
| CN103451758A (en) * | 2013-09-17 | 2013-12-18 | 浙江格尔泰斯环保特材科技有限公司 | Polytetrafluoroethylene ultrafine fiber |
| CN105295269A (en) * | 2015-11-20 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Preparation method for graphite filled polytetrafluorethylene material |
| CN105946194A (en) * | 2016-07-20 | 2016-09-21 | 杭州佰强能源科技有限公司 | Method for producing fluoroplastic steel pipe |
| CN110421831A (en) * | 2019-08-12 | 2019-11-08 | 杭州麦克密封材料有限公司 | A kind of production technology of the soft polytetrafluoroethylene tape of rapid rush-repair |
| CN114752265A (en) * | 2022-04-25 | 2022-07-15 | 中国航空发动机研究院 | Fluorine-containing coating and preparation method and application thereof |
-
2006
- 2006-10-27 CN CN 200610154441 patent/CN101058658A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372980A (en) * | 2012-04-17 | 2013-10-30 | 夏华松 | Processing method of high-mesh graphite hexafluoropropylene wire |
| CN103254533A (en) * | 2013-06-14 | 2013-08-21 | 中材科技股份有限公司 | Preparation method of polytetrafluoroethylene film doped with conducting particles |
| CN103451758A (en) * | 2013-09-17 | 2013-12-18 | 浙江格尔泰斯环保特材科技有限公司 | Polytetrafluoroethylene ultrafine fiber |
| CN103451758B (en) * | 2013-09-17 | 2015-01-21 | 浙江格尔泰斯环保特材科技有限公司 | Polytetrafluoroethylene ultrafine fiber |
| CN105295269A (en) * | 2015-11-20 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Preparation method for graphite filled polytetrafluorethylene material |
| CN105295269B (en) * | 2015-11-20 | 2017-12-19 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of preparation method for filling graphite polytetrafluoroethylmaterial material |
| CN105946194A (en) * | 2016-07-20 | 2016-09-21 | 杭州佰强能源科技有限公司 | Method for producing fluoroplastic steel pipe |
| CN105946194B (en) * | 2016-07-20 | 2018-04-10 | 衢州佰强新材料科技有限公司 | A kind of fluorine plastic-steel pipe production method |
| CN110421831A (en) * | 2019-08-12 | 2019-11-08 | 杭州麦克密封材料有限公司 | A kind of production technology of the soft polytetrafluoroethylene tape of rapid rush-repair |
| CN114752265A (en) * | 2022-04-25 | 2022-07-15 | 中国航空发动机研究院 | Fluorine-containing coating and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101058658A (en) | Black polytetrafluoroethene line and preparation technique | |
| CN104151706B (en) | Polypropylene composite material and preparation method thereof | |
| CN1212719A (en) | Molding material and process for preparing same | |
| CN1922257A (en) | Use of a pretreated precipitated silica as a reinforcing filler for silicone elastomer and curable compositions thus obtained | |
| CN1957643A (en) | Fracture resistant electrodes for a carbothermic reduction furnace | |
| CN102181111B (en) | Process for producing a fluororesin sheet containing a filler and a fluororesin sheet containing a filler | |
| CN102076749A (en) | Composite comprising nanosize powder and use of the composite | |
| CN114380539B (en) | Asphalt cold-patch material prepared from recycled glass fiber reinforced plastics | |
| CN106543731A (en) | Rubber composition and power cable | |
| CN106751783A (en) | High visocity nylon 6 composite prepared by a kind of melting extrusion chain extending reaction and preparation method thereof | |
| CN108864659A (en) | A kind of anti-aging cable cover(ing) and preparation method thereof containing modified straw | |
| CN1480487A (en) | Composite material of polyvinyl chloride and prepn method | |
| CN1523060A (en) | Detaching type polymer/montmorillonite composite material and preparing method thereof | |
| CN104497567B (en) | Long carbon chain nylon/calcium silicate whisker composite and its preparation method and application | |
| CN100349983C (en) | Method for producing silicone rubber, aqueous emulsion for silicone rubber and method for producing same | |
| CN1302053C (en) | Method for producing molding compound resin tablet and method for manufacturing white light emitting diode by using the production method | |
| CN106496658B (en) | A kind of natural rubber and preparation method thereof of superfined flyash filling | |
| CN102015857A (en) | Silicone rubber compositions | |
| CN1119143A (en) | Production of composites | |
| DE10228842A1 (en) | Process for the continuous production of addition-crosslinking silicone compositions | |
| CN1229104A (en) | Continuous preparation method for wet solidified organic polyorganosiloxane composition | |
| CN103408949A (en) | Ultra-high-hardness mixed rubber and preparation method thereof | |
| CN1714179A (en) | A full dull polyamide 6 yarn, and a process of preparing for the same | |
| CN1246381C (en) | Agglomerate and molded product of polytetrafluoroethylene | |
| CN1544232A (en) | Manufacturing method of polyvinyl chloride foaming coiled material tie plate leather |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |