CN114479482A - Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax - Google Patents
Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax Download PDFInfo
- Publication number
- CN114479482A CN114479482A CN202210032371.2A CN202210032371A CN114479482A CN 114479482 A CN114479482 A CN 114479482A CN 202210032371 A CN202210032371 A CN 202210032371A CN 114479482 A CN114479482 A CN 114479482A
- Authority
- CN
- China
- Prior art keywords
- liquid wax
- reaction tank
- carbon dioxide
- dioxide gas
- gas
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 141
- 238000002360 preparation method Methods 0.000 title abstract description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 91
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 44
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910002090 carbon oxide Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009955 starching Methods 0.000 claims 1
- 240000008564 Boehmeria nivea Species 0.000 abstract description 9
- 206010020112 Hirsutism Diseases 0.000 abstract description 5
- 230000003020 moisturizing effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004018 waxing Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000035484 reaction time Effects 0.000 description 6
- 238000004513 sizing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/04—Processes in which the treating agent is applied in the form of a foam
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
-
- 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
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2391/06—Waxes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a porous liquid wax, a device for preparing the porous liquid wax and a preparation method of the porous liquid wax, wherein the liquid wax contains micropores, the porosity is 80%, the specific surface area of ramie yarn is increased after waxing, the moisture regain of the ramie yarn in the subsequent moisturizing process is increased to 80%, and simultaneously in the subsequent moisturizing process, water is locked in small pores of the porous liquid wax by adding water for cooling, so that the strength of the ramie yarn can be enhanced, the hairiness can be reduced, the strength of the ramie yarn is enhanced by 25-30%, the hairiness is reduced by 60%, in the production process of the porous liquid wax, the full reaction of the liquid wax and carbon dioxide gas is ensured through the arrangement of a multi-stage liquid wax reaction tank, and the porosity of the generated porous liquid wax is ensured to reach 80%.
Description
Technical Field
The invention relates to the technical field of liquid wax preparation, in particular to porous liquid wax, a device for preparing the porous liquid wax and a method for preparing the porous liquid wax.
Background
The waxing is to apply a certain amount of liquid wax on the surface of the yarn to enable the liquid wax to be adhered and immersed into the yarn, so that the purposes of softening the yarn, increasing the smoothness and antistatic property of the yarn and further attaching hairiness are achieved. Finally, the weaving broken ends are reduced, and the spinnability is enhanced.
The existing liquid wax is mainly soluble emulsified wax, wherein the existing liquid wax has no special structure, the moisturizing and water-locking performance on ramie yarn is general, the existing waxing process consumes more liquid wax, and the liquid wax is removed in the subsequent process.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides porous liquid wax, a device for preparing the porous liquid wax and a method for preparing the porous liquid wax.
The technical scheme adopted by the invention for solving the technical problems is as follows: a porous liquid wax, said liquid wax comprising micropores and having a porosity of 80%.
The utility model provides a device for preparing porous liquid wax, includes the carbon dioxide gas jar, the carbon dioxide gas jar is linked together through pipeline and gas preheater, gas preheater is linked together through pipeline and gaseous booster pump, gaseous booster pump passes through gas heater and communicates with first liquid wax reaction tank and second liquid wax reaction tank respectively mutually, first liquid wax reaction tank communicates with second liquid wax reaction tank mutually through the pipeline, second liquid wax reaction tank is linked together through pipeline and sizing apparatus.
Further, the first liquid wax reaction tank and the second liquid wax reaction tank are in a sealed reaction environment.
Furthermore, a valve is arranged on a pipeline between the first liquid wax reaction tank and the second liquid wax reaction tank.
A method of preparing a porous liquid wax using a device as claimed in any one of the preceding claims, comprising the steps of:
(1) putting the solid wax into a first liquid wax reaction tank, heating to melt and keeping the temperature at 70-80 ℃;
(2) preheating and pressurizing carbon dioxide gas flowing out of the carbon dioxide gas tank;
(3) pressurizing the preheated carbon dioxide gas by a gas booster pump;
(4) heating the pressurized hot carbon oxide gas to 70-80 ℃;
(5) and respectively introducing the heated high-pressure carbon dioxide gas into the first liquid wax reaction tank and the second liquid wax reaction tank.
Further, in the step (2), the carbon dioxide gas flowing out of the carbon dioxide gas tank is preheated to 40-50 ℃.
Further, the gas booster pump in the step (3) boosts the preheated carbon dioxide gas to 40 MPa.
Further, the flow rate of the carbon dioxide in the step (2) is 40 g/min.
Further, the high-pressure carbon dioxide gas in the step (5) is firstly introduced into the first liquid wax reaction tank, after the liquid wax porosity in the first liquid wax reaction tank is 60%, a valve between the first liquid wax reaction tank and the second liquid wax reaction tank is opened, the liquid wax in the first liquid wax reaction tank is introduced into the second liquid wax reaction tank, the heated high-pressure carbon dioxide gas is continuously introduced into the second liquid wax reaction tank, and the reaction is stopped after the liquid wax porosity in the second liquid wax reaction tank is 80%.
Further, the reaction time of introducing the high-pressure carbon dioxide gas in the step (5) into the first liquid wax reaction tank is 60min, and the reaction time of introducing the high-pressure carbon dioxide gas into the second liquid wax reaction tank is 30 min.
Compared with the prior art, the invention has the following beneficial effects:
1. the porous liquid wax provided by the invention contains micropores, the specific surface area of the ramie yarn is increased after waxing, the moisture regain of the ramie yarn in the subsequent moisturizing process is increased to 80%, and meanwhile, in the subsequent moisturizing process, water is locked in small pores of the porous liquid wax by adding water for cooling, so that the strength of the ramie yarn can be enhanced, the hairiness can be reduced, the strength of the ramie yarn is enhanced by 25-30%, and the hairiness is reduced by 60%.
2. The device for preparing the porous liquid wax has a simple structure, and the full reaction of the liquid wax and carbon dioxide gas is ensured through the arrangement of the multistage liquid wax reaction tanks, so that the porosity of the generated porous liquid wax is ensured to reach 80%.
3. The preparation method of the porous liquid wax provided by the invention ensures that the porosity of the generated porous liquid wax reaches 80% through reasonable step setting and proper reaction time and reaction conditions.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for preparing porous liquid wax according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a porous liquid wax, which contains micropores and has a porosity of 80%.
Referring to fig. 1, the apparatus for preparing porous liquid wax comprises a carbon dioxide gas tank 1, wherein the carbon dioxide gas tank 1 is communicated with a gas preheater 2 through a pipeline, the gas preheater 2 is communicated with a gas booster pump 3 through a pipeline, the gas booster pump 3 is respectively communicated with a first liquid wax reaction tank 5 and a second liquid wax reaction tank 6 through a gas heater 4, the first liquid wax reaction tank 5 is communicated with the second liquid wax reaction tank 6 through a pipeline, and the second liquid wax reaction tank 6 is communicated with a sizing device 7 through a pipeline.
It should be noted that the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6 are in a sealed reaction environment, pressurized carbon dioxide gas is introduced into the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6 to react with liquid wax therein, a pressure environment is maintained during the reaction, meanwhile, a pipeline introduced into the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6 should extend into the liquid wax to ensure sufficient reaction, a valve 8 is arranged on a pipeline between the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6, after the liquid wax reaction in the first liquid wax reaction tank 5 is completed, the valve 8 is opened, and the liquid wax in the first liquid wax reaction tank 5 is pumped into the second liquid wax reaction tank 5 through a pump device.
A method of making a porous liquid wax using an apparatus as claimed in any preceding claim, comprising the steps of:
(1) putting the solid wax into a first liquid wax reaction tank 5, heating to melt and keeping the temperature at 70-80 ℃;
(2) preheating and pressurizing carbon dioxide gas flowing out of the carbon dioxide gas tank 1;
(3) pressurizing the preheated carbon dioxide gas by a gas booster pump 3;
(4) heating the pressurized hot carbon oxide gas to 70-80 ℃;
(5) and respectively introducing the heated high-pressure carbon dioxide gas into the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6.
It should be noted that, in the step 2, the carbon dioxide gas flowing out of the carbon dioxide gas tank 1 is preheated to 40-50 ℃, the gas booster pump 3 in the step 3 boosts the preheated carbon dioxide gas to 40MPa, and the flow rate of the carbon dioxide in the step 2 is 40 g/min.
Meanwhile, the high-pressure carbon dioxide gas in the step 5 is firstly introduced into the first liquid wax reaction tank 5, after the liquid wax porosity in the first liquid wax reaction tank 5 is 60%, the valve 8 between the first liquid wax reaction tank 5 and the second liquid wax reaction tank 6 is opened, the liquid wax in the first liquid wax reaction tank 5 is introduced into the second liquid wax reaction tank 6, the heated high-pressure carbon dioxide gas is continuously introduced into the second liquid wax reaction tank 6, and after the liquid wax porosity in the second liquid wax reaction tank 6 is 80%, the reaction is stopped.
The porosity is controlled by the reaction time, the reaction time for introducing the high-pressure carbon dioxide gas in the step 5 into the first liquid wax reaction tank 5 is 60min, and the reaction time for introducing the high-pressure carbon dioxide gas into the second liquid wax reaction tank 6 is 30 min.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A porous liquid wax, wherein the liquid wax comprises micropores and has a porosity of 80%.
2. The utility model provides a device for preparing porous liquid wax, its characterized in that includes carbon dioxide gas jar (1), carbon dioxide gas jar (1) is linked together through pipeline and gas preheater (2), gas preheater (2) are linked together through pipeline and gas booster pump (3), gas booster pump (3) are linked together with first liquid wax reaction tank (5) and second liquid wax reaction tank (6) respectively through gas heater (4), first liquid wax reaction tank (5) are linked together through pipeline and second liquid wax reaction tank (6), second liquid wax reaction tank (6) are linked together through pipeline and starching device (7).
3. The apparatus for preparing porous liquid wax according to claim 2, wherein the first liquid wax reaction tank (5) and the second liquid wax reaction tank (6) are a closed reaction environment.
4. The device for preparing porous liquid wax is characterized in that a valve (8) is arranged on a pipeline between the first liquid wax reaction tank (5) and the second liquid wax reaction tank (6).
5. A method for preparing porous liquid wax, which is characterized in that the method utilizes the device as claimed in any one of claims 2 to 4, and comprises the following steps:
(1) putting the solid wax into a first liquid wax reaction tank (5), heating to melt, and keeping the temperature at 70-80 ℃;
(2) preheating and pressurizing carbon dioxide gas flowing out of the carbon dioxide gas tank (1);
(3) pressurizing the preheated carbon dioxide gas by a gas booster pump (3);
(4) heating the pressurized hot carbon oxide gas to 70-80 ℃;
(5) and respectively introducing the heated high-pressure carbon dioxide gas into the first liquid wax reaction tank (5) and the second liquid wax reaction tank (6).
6. The method for preparing porous liquid wax according to claim 5, wherein the carbon dioxide gas flowing out of the carbon dioxide gas tank (1) in the step (2) is preheated to 40-50 ℃.
7. The method for preparing porous liquid wax as claimed in claim 6, wherein the preheated carbon dioxide gas is pressurized to 40MPa by the gas booster pump (3) in the step (3).
8. The method for preparing porous liquid wax according to claim 7, wherein the flow rate of the carbon dioxide in the step (2) is 40 g/min.
9. The method for preparing the porous liquid wax according to claim 8, wherein the high-pressure carbon dioxide gas in the step (5) is firstly introduced into the first liquid wax reaction tank (5), after the porosity of the liquid wax in the first liquid wax reaction tank (5) is 60%, a valve (8) between the first liquid wax reaction tank (5) and the second liquid wax reaction tank (6) is opened, the liquid wax in the first liquid wax reaction tank (5) is introduced into the second liquid wax reaction tank (6), the heated high-pressure carbon dioxide gas is continuously introduced into the second liquid wax reaction tank (6), and the reaction is stopped after the porosity of the liquid wax in the second liquid wax reaction tank (6) is 80%.
10. The method for preparing porous liquid wax according to claim 9, wherein the high-pressure carbon dioxide gas in the step (5) is firstly introduced into the first liquid wax reaction tank (5) for reaction for 60min, and is introduced into the second liquid wax reaction tank (6) for reaction for 30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032371.2A CN114479482A (en) | 2022-01-12 | 2022-01-12 | Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032371.2A CN114479482A (en) | 2022-01-12 | 2022-01-12 | Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114479482A true CN114479482A (en) | 2022-05-13 |
Family
ID=81512878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210032371.2A Pending CN114479482A (en) | 2022-01-12 | 2022-01-12 | Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114479482A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265514A (en) * | 1958-10-17 | 1966-08-09 | Hoechst Ag | Process for the manufacture of substances having porous structure |
| TW593832B (en) * | 2001-06-08 | 2004-06-21 | Va & G Bioscience Inc | Method for processing antiseptic yarns |
| CN104195772A (en) * | 2014-07-21 | 2014-12-10 | 江南大学 | Sizing technology with foam sizing in corporation with warp yarn prewetting |
| CN107313250A (en) * | 2016-08-23 | 2017-11-03 | 如皋长江科技产业有限公司 | A kind of yarn wet-method waxing process |
| CN107904814A (en) * | 2017-12-18 | 2018-04-13 | 广东溢达纺织有限公司 | Linen thread and yarn and its slashing technique, warping slashing technique and fabric |
| FR3065003A1 (en) * | 2017-04-07 | 2018-10-12 | Denis Et Fils Sas | PROCESS FOR PRODUCING WAX FOAM |
| CN114318842A (en) * | 2022-01-07 | 2022-04-12 | 浙江舒麻科技有限公司 | Treatment process of ramie yarn |
-
2022
- 2022-01-12 CN CN202210032371.2A patent/CN114479482A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3265514A (en) * | 1958-10-17 | 1966-08-09 | Hoechst Ag | Process for the manufacture of substances having porous structure |
| TW593832B (en) * | 2001-06-08 | 2004-06-21 | Va & G Bioscience Inc | Method for processing antiseptic yarns |
| CN104195772A (en) * | 2014-07-21 | 2014-12-10 | 江南大学 | Sizing technology with foam sizing in corporation with warp yarn prewetting |
| CN107313250A (en) * | 2016-08-23 | 2017-11-03 | 如皋长江科技产业有限公司 | A kind of yarn wet-method waxing process |
| FR3065003A1 (en) * | 2017-04-07 | 2018-10-12 | Denis Et Fils Sas | PROCESS FOR PRODUCING WAX FOAM |
| CN107904814A (en) * | 2017-12-18 | 2018-04-13 | 广东溢达纺织有限公司 | Linen thread and yarn and its slashing technique, warping slashing technique and fabric |
| CN114318842A (en) * | 2022-01-07 | 2022-04-12 | 浙江舒麻科技有限公司 | Treatment process of ramie yarn |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106400206A (en) | Preparation method for lignin-based carbon fiber | |
| AU2021105577A4 (en) | Nanofiber /MOFs-based Preferential Alcohol Permeation Pervaporation membrane and Preparation Method thereof | |
| CN114479482A (en) | Porous liquid wax, device for preparing porous liquid wax and preparation method of porous liquid wax | |
| CN102580569A (en) | Nb-shaped alloy2O5Method for producing gas separation membrane | |
| CN103437096B (en) | A kind of crystalline substance of cotton fiber becomes method of modifying | |
| CN110862258B (en) | Load-bearing carbon aerogel-porous silicon dioxide composite material and preparation method thereof | |
| CN103422365A (en) | Crystal changing modification method for synthetic fiber materials | |
| CN103437152B (en) | Crystal variation modification method of ambari fiber | |
| CN107354537A (en) | A kind of preparation method of lignin-base carbon fiber | |
| CN103437097B (en) | A kind of crystalline substance of ramee becomes method of modifying | |
| CN113402765A (en) | Preparation method of high-strength low-thermal-conductivity polymer crosslinked aerogel material | |
| CN103422279B (en) | A kind of crystalline substance of linen thread and yarn becomes method of modifying | |
| CN103422367A (en) | Crystal changing modification method for acrylic fibers | |
| CN103422271B (en) | A kind of crystalline substance of tossa becomes method of modifying | |
| CN103437151B (en) | Compound crystal variation modification method of ramie fiber | |
| CN108516557A (en) | A method of preparing hydrophobic silica aerogel with seepage slope membrane separation device | |
| CN103437095B (en) | A kind of crystalline substance of linen fibre becomes method of modifying | |
| CN103422278B (en) | A kind of crystalline substance of cotton becomes method of modifying | |
| CN119287681B (en) | High-strength durable heat tetram fabric and preparation method and application thereof | |
| CN212446595U (en) | Glass fiber bulked filter cloth and PTFE fiber composite dedusting filter material | |
| CN1023547C (en) | Corrosion-resistant high-strength fine filtering material, production method and application | |
| CN103437155B (en) | A kind of crystalline substance of polypropylene fabric becomes method of modifying | |
| CN115434043B (en) | Device and method for pressurizing and not melting asphalt fibers | |
| CN103422366A (en) | Crystal transition modification method for dacron fiber | |
| CN103437098B (en) | A kind of crystalline substance of viscose becomes method of modifying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220513 |