CN107419573B - A kind of preparation method of high-strength packaging chemical fiber paper - Google Patents
A kind of preparation method of high-strength packaging chemical fiber paper Download PDFInfo
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- CN107419573B CN107419573B CN201710817366.1A CN201710817366A CN107419573B CN 107419573 B CN107419573 B CN 107419573B CN 201710817366 A CN201710817366 A CN 201710817366A CN 107419573 B CN107419573 B CN 107419573B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/001—Drying webs by radiant heating
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention belongs to the technical fields of novel papermaking industry, provide a kind of preparation method of high-strength packaging chemical fiber paper, its main feature is that first coating fatty acid salt on chemical fibre surface, so that fiber is hydrophilic, wetability is improved, then Laser Surface Cladding Technology method is used again, acrylic resin is coated on chemical fibre surface, to form uniform sequential and compact structure film on chemical fibre surface, make it in the process of making, improve the intensity of chemical fibre paper, general chemical fibre is solved with smooth surface, it is poor to the wellability of water, surface-active is low, it is difficult to form ideal combination between fiber, it is difficult to disperse there are fiber with other fibrous raw material mixing paper-making processes in chemical fibre, the disadvantages such as bond strength is low between paper fibre.The application space of chemical fiber paper is extended simultaneously.Method of the invention is implemented simply, and process environmental protection, cost is relatively low, it can be achieved that large-scale production.
Description
Technical field
The invention belongs to the technical fields of papermaking industry, provide a kind of preparation method of high-strength packaging chemical fiber paper.
Background technique
Papermaking industry is the important foundation raw material industry in close relations with national economy and social cause development, paper and paper
The level of consumption of plate is to measure the mark of a modernization of the country level and civilization degree.Papermaking industry has fund technology close
Collection, scale and benefit outstanding feature, interrelationship between industries is strong, and market capacity is big, is to pull forestry, agricultural, printing, packaging, machine
The important force of the industry developments such as tool manufacture, it has also become the new growth point of Chinese national economy development, is Chinese national economy
In have the characteristics that the important industry of sustainable development.
Paper industry is one of big mainstay industry of developed country's national economy ten.The appearance of laser industry has pushed photoelectricity
The development of industry is the pillar industry of information industry.By many years rapid growth, also gradually walked after China's paper industry 2012
Enter the stage of ripeness, output, consumption figure growth rate gradually slow down, and total growth in 2015 is up to 10,7,100,000 tons, annual growth
Only 2.29%, far below 2006 to 2015 during 5.71% average annual growth level.The current papermaking enterprise in China has 6000
Or more.The development of China's paper industry comes to the ripening period in recent years.
It is raw material that chemical fibre, which is with natural polymer or artificial synthesized high-molecular compound, is spun by preparation
The processes such as silk stock solution, the spinning and post-processing fiber obtained with textile performance.Although China is the most important weaving in the whole world
Product exporting country, but could also say that the most important fiber consumer nation in the whole world simultaneously.The output 70% of Chinese staple fibre~
80% supply domestic consumption uses, but in the case where increasing of constantly expanding production is built, the export ratio of Chinese staple fibre will increase gradually
Add, predicts that various fiber requirements amounts global to 2020 will more be raised to 95,000,000 tonnes.China's Industry investigation net publication
The investigation of the version Chemistry In China fiber market status in 2016 is reported with development prospect trend analysis to be thought, with global experimental branch line into
One step is shifted to China, and China has become the world's largest experimental branch line state.China Man-made Fibre Industry yield occupies the 60% of global total amount
More than.China's chemical fibre industry sustained and rapid development, synthesized competitiveness significantly improve, and the objectives for completing planning comprehensively are appointed
Business, effectively pushes and supports textile industry and the development of related industry, the status in world's chemical fiber industry and acts on into one
Step is promoted.
It deepens continuously with the development of textile industry and to chemical fibre research, has developed more and more chemistry
Fibre new species, chemical fibre have been widely used in manufacturing paper with pulp in paper industry the paper of various specific uses.It is some newly to open
The high-performance chemical fiber of hair is even more to provide wide application space for the research and development of speciality paper, such as aromatic polyamide fibre
Dimension, which can be used for producing speciality papers, the vinal such as high temperature resistant, fire-retardant, insulation, can be used for producing folding, wear-resistant, chemically-resistant
The speciality papers such as corrosion.But chemical fibre generally has smooth surface, poor to the wellability of water, and surface-active is low, between fiber
It is difficult to form ideal combination, is difficult to disperse there are fiber with other fibrous raw material mixing paper-making processes in chemical fibre, paper
The disadvantages such as bond strength is low between fiber, limit it application and performance performance.
Summary of the invention
For be difficult to disperse there are fiber in existing chemical fibre paper-making process, bond strength is low etc. between paper fibre lacks
Point, the present invention provides a kind of preparation method of high-strength packaging chemical fiber paper, its main feature is that first coating rouge on chemical fibre surface
Then fat hydrochlorate uses Laser Surface Cladding Technology method, on chemical fibre surface so that hydrophilic, the wetability of fiber are improved again
Coat acrylic resin makes it in the process of manufacturing paper with pulp to form uniform sequential and compact structure film on chemical fibre surface
In, the intensity of chemical fibre paper is improved, solving general chemical fibre has smooth surface, and it is poor to the wellability of water,
Surface-active is low, is difficult to form ideal combination between fiber, deposits in chemical fibre and other fibrous raw material mixing paper-making processes
It is difficult to disperse in fiber, the disadvantages such as bond strength is low between paper fibre.
Specific technical solution of the present invention is as follows:
It is a kind of it is high-strength packaging chemical fiber paper preparation method then applied by first being activated to chemical fibre surface
Fatty acid salt is covered, so that the hydrophily and wetability of fiber are improved, then uses Laser Surface Cladding Technology method again, chemical fine
Dimension table face coating acrylic resin is further copied to form uniform sequential and compact structure film on chemical fibre surface
It is made of paper to obtain high-strength packaging chemical fiber paper, the specific steps are as follows:
(1) chemical fibre is placed in 1,2- dichloroethanes, is heated to boiling-like, take out filtering after a certain period of time, then set
In dehydrated alcohol, it is heated to boiling-like, takes out filtering after a certain period of time to remove the finish of fiber surface；Then it uses and configures
Acidity or alkaline processing soln coat its surface, obtain the chemical fibre of surface active；
(2) by after the resulting activating chemical fiber drying of step (1), its surface is coated with fatty acid salt, by acrylic acid tree
Rouge is coated on chemical fibre surface, then rapidly makes chemical fibre surface melting and the acrylic resin securely company of welding using laser
It connects, to form uniform sequential and compact structure acrylic resin films on chemical fibre surface；
(3) surface that step (2) obtains securely is connected to the chemical fibre of fine and close acrylic resin films according to routine
Copy paper technique manufacture paper with pulp, obtain high-strength packaging chemical fiber paper.
Preferably, step (1) chemical fibre is aramid fiber, ultra high molecular weight polyethylene fiber, polyparaphenylene's benzene
And it is double oxazole fibers, poly- to one of benzimidazole fiber, polyhenylene pyrido diimidazole fiber or polyimide fiber.
Preferably, the heating time of step (1) described dichloroethanes is 1 ~ 1.5h, heating time of dehydrated alcohol is 0.5 ~
1h。
Preferably, step (1) processing solution is sodium hydroxide solution, sulfuric acid solution or phosphoric acid solution.
Preferably, the surface moisture content after step (2) chemical fibre is dry should be not higher than 2%.
Preferably, step (2) described fatty acid salt is the sodium salt or sylvite for the fatty acid that long chain carbon atoms number is 6 ~ 12.
Preferably, the solid content of step (3) described acrylic resin is 40 ~ 60%, and hydroxy radical content is 2 ~ 3%.
Preferably, step (3) coating produced by laser cladding uses YAG laser, and output power is set as 500 ~ 1000W, welds
Time is 3-5s.
In general, chemical fibre surface lacks active group, surface wettability is also poor, the interface cohesive force with enhancing film layer
Weaker, so that interlayer is easy to slide, transverse tensile strength is very low, limits its application.Meanwhile many chemical fibres have core-skin knot
Structure, together by Hydrogenbond, active force is weak, and the crystallinity of epidermis is high for the rodlike molecule of core, and molecular weight is in rigidity.When
Fiber skin is destroyed, mechanical property degradation, therefore, the raising of the surface enhanced and interfacial adhesion strength of chemical fibre
It is extremely important.Active group is introduced on chemical fibre surface using chemical method, and is allowed to that a degree of hydrolysis occurs, is enhanced
Strand activity, the strand for being conducive to fatty acid salt film layer and chemical fibre mutually wind combination.Interfacial layer thickness is bigger,
Interface is fuzzyyer, and two-phase strand combination is closer, and under lateral external forces effect, interformational sliding is less susceptible to.The present invention is first
Using coating fatty acid salt, the rapidly welding of laser is recycled to make the secured fine and close welding of the acrylic resin on chemical fibre surface
The fine and close method combined is realized on the chemical fibre surface of micro- fusing on surface, to ensure the knot after chemical fibre copy paper between interface
Close intensity.
It is compared with prior art, outstanding the present invention provides a kind of preparation method of high-strength packaging chemical fiber paper
Feature and excellent effect are:
1. method of the invention overcomes, chemical fibre surface-active is low, and wellability is poor, is difficult to form ideal between fiber
In conjunction with defect.
2. the present invention makes the acrylic resin on chemical fibre surface is secured fine and close to be welded on using the rapidly welding of laser
The chemical fibre surface of the micro- fusing in surface realizes fine and close combination, improves chemical fibre and mix in paper-making process with other components
Bond strength between the dispersibility and interface of fiber is conducive to the application space for extending chemical fiber paper.
3. the present invention improves the process of manufacturing paper with pulp by forming uniform sequential and compact structure film on chemical fibre surface
The intensity of middle chemical fiber cloth.
4. method of the invention is implemented simply, process environmental protection, cost is relatively low, it can be achieved that large-scale production.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
It is a kind of it is high-strength packaging chemical fiber paper preparation method prepare chemical fiber paper by taking aramid fiber paper as an example
Detailed process is as follows:
Aramid fiber is placed in 1,2- dichloroethanes, boiling-like is heated to, takes out filtering after 90min, then be placed in anhydrous
In ethyl alcohol, it is heated to boiling-like, filtering is taken out after 50min to remove the finish of fiber surface.Then aramid fiber is configured
The naoh treatment solution that good concentration is 40% is coated on fiber surface, obtains the aramid fiber of surface active；It will be resulting
After activation aramid fiber drying is lower than 2% to surface moisture content, its surface is coated with sodium laurate, is then 45% by solid content,
The acrylic resin that hydroxy radical content is 2% is coated on aramid fiber surface, and using YAG laser, setting output power is 700W,
Laser is welded to connect chemical fibre surface melting securely with acrylic resin, to be formed uniformly on chemical fibre surface
Orderly and compact structure acrylic resin films；The chemistry that obtained surface securely connects fine and close acrylic resin films is fine
Dimension is manufactured paper with pulp according to conventional copy paper technique, obtains high-strength packaging chemical fiber paper.
To the packaging fibrous paper that embodiment 1 obtains, test its mechanical property, obtained layer to tensile strength, axial tension
Intensity and modulus are as shown in table 1.
Embodiment 2
It is a kind of it is high-strength packaging chemical fiber paper preparation method prepare chemical fiber paper by taking aramid fiber paper as an example
Detailed process is as follows:
Aramid fiber is placed in 1,2- dichloroethanes, boiling-like is heated to, takes out filtering after 60min, then be placed in anhydrous
In ethyl alcohol, it is heated to boiling-like, filtering is taken out after 60min to remove the finish of fiber surface.Then aramid fiber is configured
The sulfuric acid treatment solution that good concentration is 50% is coated on fiber surface, obtains the aramid fiber of surface active；By resulting activation
After aramid fiber drying is lower than 2% to surface moisture content, its surface is coated with caproic acid potassium, is then 50% by solid content, hydroxyl contains
Amount is coated on aramid fiber surface for 3% acrylic resin, and using YAG laser, setting output power is 500W, and laser is anxious
Speed is welded to connect chemical fibre surface melting securely with acrylic resin, thus chemical fibre surface formed it is uniform sequential and
The acrylic resin films of compact structure；Obtained surface securely connect the chemical fibres of fine and close acrylic resin films according to
Conventional copy paper technique is manufactured paper with pulp, and high-strength packaging chemical fiber paper is obtained.
To the packaging fibrous paper that embodiment 2 obtains, test its mechanical property, obtained layer to tensile strength, axial tension
Intensity and modulus are as shown in table 1.
Embodiment 3
It is a kind of it is high-strength packaging chemical fiber paper preparation method prepare chemical fiber paper by taking aramid fiber paper as an example
Detailed process is as follows:
Aramid fiber is placed in 1,2- dichloroethanes, boiling-like is heated to, takes out filtering after 80min, then be placed in anhydrous
In ethyl alcohol, it is heated to boiling-like, filtering is taken out after 50min to remove the finish of fiber surface.Then aramid fiber is configured
The phosphoric acid processing solution that good concentration is 50% is coated on fiber surface, obtains the aramid fiber of surface active；By resulting activation
After aramid fiber drying is lower than 2% to surface moisture content, its surface is coated with sodium n-caproate, is then 50% by solid content, hydroxyl contains
Amount is coated on aramid fiber surface for 3% acrylic resin, and using YAG laser, setting output power is 1000W, and laser is anxious
Speed is welded to connect chemical fibre surface melting securely with acrylic resin, thus chemical fibre surface formed it is uniform sequential and
The acrylic resin films of compact structure；Obtained surface securely connect the chemical fibres of fine and close acrylic resin films according to
Conventional copy paper technique is manufactured paper with pulp, and high-strength packaging chemical fiber paper is obtained.
To the packaging fibrous paper that embodiment 3 obtains, test its mechanical property, obtained layer to tensile strength, axial tension
Intensity and modulus are as shown in table 1.
Embodiment 4
It is a kind of it is high-strength packaging chemical fiber paper preparation method prepare chemical fiber paper by taking aramid fiber paper as an example
Detailed process is as follows:
Aramid fiber is placed in 1,2- dichloroethanes, boiling-like is heated to, takes out filtering after 60min, then be placed in anhydrous
In ethyl alcohol, it is heated to boiling-like, filtering is taken out after 60min to remove the finish of fiber surface.Then aramid fiber is configured
The naoh treatment solution that good concentration is 40% is coated on fiber surface, obtains the aramid fiber of surface active；It will be resulting
After activation aramid fiber drying is lower than 2% to surface moisture content, its surface is coated with potassium laurate, is then 40% by solid content,
The acrylic resin that hydroxy radical content is 3% is coated on aramid fiber surface, and using YAG laser, setting output power is 600W,
Laser is welded to connect chemical fibre surface melting securely with acrylic resin, to be formed uniformly on chemical fibre surface
Orderly and compact structure acrylic resin films；The chemistry that obtained surface securely connects fine and close acrylic resin films is fine
Dimension is manufactured paper with pulp according to conventional copy paper technique, obtains high-strength packaging chemical fiber paper.
To the packaging fibrous paper that embodiment 4 obtains, test its mechanical property, obtained layer to tensile strength, axial tension
Intensity and modulus are as shown in table 1.
Embodiment 5
It is a kind of it is high-strength packaging chemical fiber paper preparation method prepare chemical fiber paper by taking aramid fiber paper as an example
Detailed process is as follows:
Aramid fiber is placed in 1,2- dichloroethanes, boiling-like is heated to, takes out filtering after 90min, then be placed in anhydrous
In ethyl alcohol, it is heated to boiling-like, filtering is taken out after 30min to remove the finish of fiber surface.Then aramid fiber is configured
The phosphoric acid processing solution that good concentration is 45% is coated on fiber surface, obtains the aramid fiber of surface active；By resulting activation
After aramid fiber drying is lower than 2% to surface moisture content, its surface is coated with sodium laurate, is then 45% by solid content, hydroxyl
The acrylic resin that content is 2% is coated on aramid fiber surface, and using YAG laser, setting output power is 800W, laser
It is welded to connect chemical fibre surface melting securely with acrylic resin, to be formed on chemical fibre surface uniform sequential
And the acrylic resin films of compact structure；Obtained surface securely connect the chemical fibres of fine and close acrylic resin films by
The copy paper technique of more solito is manufactured paper with pulp, and high-strength packaging chemical fiber paper is obtained.
To the packaging fibrous paper that embodiment 5 obtains, test its mechanical property, obtained layer to tensile strength, axial tension
Intensity and modulus are as shown in table 1.
Table 1:
Seen from table 1:
(1) packaging fibrous paper produced by the present invention, layer is to tensile strength increase rate up to 25% or more, it is seen that acrylic acid tree
The interface cohesion of rouge coating and aramid fiber is preferable.
(2) packaging fibrous paper produced by the present invention, axial tensile strength are significantly improved, and up to 25% or more, mould is axially stretched
Amount also correspondinglys increase, it is seen that its tensile capacity substantially enhances, and the reinforcing effect of acrylic resin coating is significant.
Claims (8)
1. a kind of preparation method of high-strength packaging chemical fiber paper is then coated with by first activating to chemical fibre surface
Then fatty acid salt uses Laser Surface Cladding Technology method, in chemical fibre so that the hydrophily and wetability of fiber are improved again
Surface coats acrylic resin, to form uniform sequential and compact structure film, further copy paper on chemical fibre surface
High-strength packaging chemical fiber paper is made, the specific steps are as follows:
(1) chemical fibre is placed in 1,2- dichloroethanes, is heated to boiling-like, take out filtering after a certain period of time, then be placed in nothing
In water-ethanol, it is heated to boiling-like, takes out filtering after a certain period of time to remove the finish of fiber surface；Then with configured acid
Property or alkaline processing soln coat its surface, obtain the chemical fibre of surface active；
(2) by after the resulting activating chemical fiber drying of step (1), its surface is coated with fatty acid salt, acrylic resin is applied
It is overlying on chemical fibre surface, is then welded to connect chemical fibre surface melting securely with acrylic resin using laser,
To form uniform sequential and compact structure acrylic resin films on chemical fibre surface；
(3) chemical fibre that the surface that step (2) obtains securely is connected to fine and close acrylic resin films is copied according to conventional
Paper technique is manufactured paper with pulp, and high-strength packaging chemical fiber paper is obtained.
2. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (1) institute
Chemical fibre is stated to be aramid fiber, ultra high molecular weight polyethylene fiber, Poly-p-phenylene benzobisthiazole, gather to benzimidazole
One of fiber, polyhenylene pyrido diimidazole fiber or polyimide fiber.
3. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (1) institute
The heating time for stating dichloroethanes is 1 ~ 1.5h, and the heating time of dehydrated alcohol is 0.5 ~ 1h.
4. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (1) institute
Stating processing solution is sodium hydroxide solution, sulfuric acid solution or phosphoric acid solution.
5. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (2) institute
Surface moisture content after stating chemical fibre drying should be not higher than 2%.
6. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (2) institute
State the sodium salt or sylvite that fatty acid salt is the fatty acid that long chain carbon atoms number is 6 ~ 12.
7. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (2) institute
The solid content for stating acrylic resin is 40 ~ 60%, and hydroxy radical content is 2 ~ 3%.
8. a kind of preparation method of high-strength packaging chemical fiber paper according to claim 1, it is characterised in that: step (2) institute
Laser welding is stated using YAG laser, output power is set as 500 ~ 1000W, weld interval 3-5s.
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| CN201710817366.1A CN107419573B (en) | 2017-09-12 | 2017-09-12 | A kind of preparation method of high-strength packaging chemical fiber paper |
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| CN201710817366.1A CN107419573B (en) | 2017-09-12 | 2017-09-12 | A kind of preparation method of high-strength packaging chemical fiber paper |
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| CN107419573B true CN107419573B (en) | 2019-06-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2964823A1 (en) * | 2013-03-08 | 2016-01-13 | Rhodia Operations | Dispersible fiber bundles and suspensions using environmenttally-friendly solvents |
| CN105386363A (en) * | 2015-10-29 | 2016-03-09 | 陕西科技大学 | Preparation method for alkali-resistant polyimide fiber paper |
| CN105396372A (en) * | 2015-10-22 | 2016-03-16 | 南京航空航天大学 | Ultrafine glass fiber composite filter paper and making method thereof |
| CN106638134A (en) * | 2016-10-21 | 2017-05-10 | 江南大学 | Dispersing agent for chemical fiber paper and method for preparing chemical fiber paper by applying dispersing agent |
| CN107022929A (en) * | 2017-05-02 | 2017-08-08 | 广东超华科技股份有限公司 | A kind of manufacture method of circuit board high-performance p-aramid fiber insulating paper |
-
2017
- 2017-09-12 CN CN201710817366.1A patent/CN107419573B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2964823A1 (en) * | 2013-03-08 | 2016-01-13 | Rhodia Operations | Dispersible fiber bundles and suspensions using environmenttally-friendly solvents |
| CN105396372A (en) * | 2015-10-22 | 2016-03-16 | 南京航空航天大学 | Ultrafine glass fiber composite filter paper and making method thereof |
| CN105386363A (en) * | 2015-10-29 | 2016-03-09 | 陕西科技大学 | Preparation method for alkali-resistant polyimide fiber paper |
| CN106638134A (en) * | 2016-10-21 | 2017-05-10 | 江南大学 | Dispersing agent for chemical fiber paper and method for preparing chemical fiber paper by applying dispersing agent |
| CN107022929A (en) * | 2017-05-02 | 2017-08-08 | 广东超华科技股份有限公司 | A kind of manufacture method of circuit board high-performance p-aramid fiber insulating paper |
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| CN107419573A (en) | 2017-12-01 |
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Effective date of registration: 20191225 Address after: 210000 Xiaopeng community, Lukou street, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing gerun packaging materials Co., Ltd Address before: Qingyang District of Chengdu City, Sichuan province 610091 Dragon Industrial Port East Road 4 Patentee before: Chengdu Xinkeli Chemical Sci-Tech Co., Ltd. |
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