CN105421135A - Plant fiber/waste FPR composite material and preparation method thereof - Google Patents
Plant fiber/waste FPR composite material and preparation method thereof Download PDFInfo
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- CN105421135A CN105421135A CN201510867425.7A CN201510867425A CN105421135A CN 105421135 A CN105421135 A CN 105421135A CN 201510867425 A CN201510867425 A CN 201510867425A CN 105421135 A CN105421135 A CN 105421135A
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- fpr
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
- D21H15/12—Composite fibres partly organic, partly inorganic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/09—Sulfur-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/11—Halides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention relates to a plant fiber/waste FPR composite material and a preparation method thereof. The preparation method comprises the following steps: dispersing 50-80% of plant fibers and 5-20% of PVA fibers in water in percentages by weight and uniformly stirring, then adding 10-30% of waste FPR powder wetted by a wetting agent in percentages by weight, and uniformly stirring to obtain a fluid to be treated; and carrying out papermaking and molding on the fluid to be treated to obtain wet paper sheets, and squeezing and drying to obtain the plant fiber/waste FPR composite material. According to the preparation method disclosed by the invention, the waste FPR and the plant fibers serve as main materials, PVA fibers serve as adhesives, so that the plant fibers and the waste FPR are combined well, and the strength property of the material is improved effectively; the wetting agent facilitates dispersion of the waste FPR in a system, properties of the various components are played fully, the composite material with good properties is prepared by a wet-method papermaking technology, and reasonable reusing of resources is realized; and the preparation method is simple and feasible, and the recycling rate is high and can reach 100%.
Description
[technical field]
The present invention relates to the recycling field of waste material, be specifically related to a kind of string/discarded FPR composite and preparation method thereof.
[background technology]
Fiberglass another name glass fibre reinforced composion, be commonly called as FRP (FiberReinforcedPlastics), due to its have superior performance as: high-strength light, good corrosion resistance, good insulation preformance, hot property are good, designability is strong, manufacturability is excellent, since developmental research in 1958, just obtain the favor of all trades and professions.Data according to the relevent statistics, the kind of the fibre glass product manufacture of current countries in the world exploitation has reached about 40,000 kinds, is mainly used in the industries such as building trade, chemical industry, automobile and railway traffic carrier, electrical industry and Communication Engineering.
For many years, glass fiber reinforced plastics product Application Areas constantly expands, and kind, output rise year by year, meanwhile its discarded object increasing number.According to conservative estimation, over more than 50 year, the scrap glass steel of China has reached millions of t, but also with the speed increment of ten tens thousand of t/.Therefore, the annual glass fiber reinforced plastic wastes considerable amount produced, but these discarded fiberglass there is no and do any further process so far.
Along with the enforcement of China's strategy of sustainable development, Environmental protection is had higher requirement." the anti-therapy of People's Republic of China's noxious waste pollution environment " specifies: the control of country to solid waste pollution environment, carry out the principle of generation and the harmfulness, fully Appropriate application solid waste and harmlessness disposing solid waste reducing solid waste, promote cleaner production and recycling economy development.And encourage, support the scientific research of prevention and control of environmental pollution by solid wastes, technological development, the Prevention Technique of popularization advanced person and the scientific knowledge of universal prevention and control of environmental pollution by solid wastes.
[summary of the invention]
The object of the invention is to overcome problems of the prior art, a kind of string/discarded FPR composite and preparation method thereof is provided, the process of the inventive method to glass fibre reinforced plastic waste is simple, be easy to operation, and can not produce secondary pollution in reuse process, realizing discarded object turns waste into wealth and the reasonable recycling of resource.
In order to achieve the above object, the present invention adopts following technical scheme:
Comprise the following steps:
(1) by mass percentage, first the PVA fiber dispersion of the string of 50 ~ 80% and 5 ~ 20% is stirred in water, then add the discarded FPR powder infiltrated through wetting agent of 10 ~ 30%, stir, obtain pending slurries;
(2) the pending slurries in step (1) are carried out manufacture paper with pulp and shapingly obtain l Water Paper page;
(3) the l Water Paper page obtained is squeezed, obtain half-dried page;
(4) dry half-dried page, obtain string/discarded FPR composite.
Further, 2 ~ 3min is stirred when string and PVA fiber dispersion are in water in step (1); After adding the discarded FPR powder infiltrated through wetting agent, stir 20 ~ 30s.
Further, through the discarded FPR powder that wetting agent infiltrates in step (1), be according to mass percent, obtained by the discarded FPR powder of the wetting agent infiltration 9 ~ 29% of 1%.
Further, page is adopted in step (2) to copy to get device to carry out manufacturing paper with pulp shaping; In step (3), squeeze pressure is 4 ~ 5MPa, and the squeezing time is 30 ~ 60s.
Further, 4 ~ 5min is dried at 102 ~ 105 DEG C in step (4).
The technical scheme of composite of the present invention is: by mass percentage, comprises following component:
Discarded FPR:9 ~ 29%; String: 50 ~ 80%; PVA fiber: 5 ~ 20%; Wetting agent: 1%.
Further, organic toughened glass obtains through pulverizing and crossing 40 mesh sieves by discarded FPR, and wherein containing percentage by weight is the glass fibre of 55 ~ 60%, and glass fiber diameter is 15 ~ 20 μm, and glass fibre length is 30 ~ 200 μm.
Further, string adopts needle-leaved wood fibre, broad-leaved wood fiber, flax fibre or cotton fiber, and its beating degree is 43 ~ 46 ° of SR.
Further, PVA fiber is 90 DEG C of water miscible technical fibers.
Further, wetting agent is that lauryl sodium sulfate, polyethylene glycol are to isooctyl phenyl ether or DTAB.
Compared with prior art, the present invention has following useful technique effect:
In the inventive method, discarded FPR is mixed according to certain ratio with string, PVA fiber, wetting agent etc., discarded FPR and string are as the major ingredient preparing material, PVA fiber, as binding agent, makes string and discarded FPR combine good, effectively increases strength of materials performance; Wetting agent, as the auxiliary agent of material preparation process, is conducive to the dispersion of discarded FPR in system, has given full play to the performance of each component, prepares string/discarded FPR composite, realize the reasonable recycling of resource by wet papermaking technology; Simple possible, recovery utilization rate are high, can reach 100%.
String of the present invention/discard the functional of FPR composite, tensile index can reach 41.25Nm/g, and percentage elongation can reach 2.94%; Purposes is comparatively extensive, and as being used in the sandwich layer of boxboard, wherein discarded FPR can Substitute For Partial string, on the one hand discarded FPR is turned waste into wealth, has saved plant fiber material on the other hand.
[detailed description of the invention]
Discarded FPR is made the powder of certain particle diameter by the present invention through pulverizing, primary dcreening operation, fine screen, mix according to certain ratio with string, PVA fiber, wetting agent etc., prepare string/discarded FPR composite by wet papermaking technology, realize the reasonable recycling of resource.The mass percent of each component is as follows: discarded FPR:9 ~ 29%; String: 50 ~ 80%; PVA fiber: 5 ~ 20%; Wetting agent: 1%.
Wherein, discarded FPR derives from discarded organic toughened glass, and obtained through pulverizing and crossing 40 mesh sieves by organic toughened glass, wherein the percentage by weight of glass fibre is 55 ~ 60%, and glass fiber diameter is 15 ~ 20 μm, and glass fibre length is 30 ~ 200 μm.String can be needle-leaved wood fibre, broad-leaved wood fiber, flax fibre or cotton fiber etc., and its beating degree is 43 ~ 46 ° of SR.PVA fiber is 90 DEG C of water miscible technical fibers.Wetting agent is that lauryl sodium sulfate, polyethylene glycol are to isooctyl phenyl ether or DTAB etc.
In the present invention, discarded FPR and string are as the major ingredient preparing material, and its quality proportioning all calculates according to its oven-dry weight; PVA fiber, as binding agent, increases strength of materials performance; Wetting agent, as the auxiliary agent of material preparation process, is conducive to the dispersion of glass fibre reinforced plastic waste in system.
The present invention prepares string/discarded FPR composite by following steps:
1) first by string and PVA fiber dispersion in water, constantly stirring 2 ~ 3min with defiberizing machine makes fiber dispersed in water, then add the discarded FPR through wetting agent process, continue stirring at low speed 20 ~ 30s and make fiber and discarded FPR Homogeneous phase mixing, obtain pending slurries.
2) using page to copy and get device, by step 1) slurries that obtain manufacture paper with pulp and shapingly obtain l Water Paper page.
3) the l Water Paper page obtained is squeezed, squeeze pressure is 4 ~ 5MPa, and the squeezing time is 30 ~ 60s, removes wherein portion of water, obtain mass dryness fraction 30 ~ 40% half-dried page.
4) finally page is placed in drier, dries 4 ~ 5min for 102 ~ 105 DEG C, namely obtain string/discarded FPR composite.
Embodiment 1:
1) by beating degree be first the needle-leaved wood fibre of 46 ° of SR and 90 DEG C of water miscible PVA fiber dispersion in water, use defiberizing machine to stir 3min continuously, fiber be dispersed in water.Then add the discarded FPR infiltrated through lauryl sodium sulfate, continue stirring at low speed 30s, obtain pending slurries.Wherein needle-leaved wood fibre accounts for 80% of gross mass, and 9%, the PVA fiber that discarded FPR accounts for gross mass accounts for 10% of gross mass, and lauryl sodium sulfate accounts for 1% of gross mass.
2) using page to copy and get device, by step 1) slurries that obtain manufacture paper with pulp into l Water Paper page.
3) squeeze l Water Paper page, squeeze pressure is 5MPa, and the squeezing time is 60s, and the final web dryness that controls is 30 ~ 40%.
4) l Water Paper page is dried, and the temperature of drier is 105 DEG C, and drying time is 5min.After l Water Paper page bone dry, take out, namely obtain string/discarded FPR composite.
After testing, the tensile index of this composite can reach 35.16Nm/g, and percentage elongation can reach 2.03%.Under the effect of PVA fiber, string and discarded FPR combine good.
Each raw material mass mixture ratio of other embodiments is as shown in the table:
Preparation method and all the other steps are all with embodiment 1.
After testing, the composite tensile index of embodiment 2 can reach 39.24Nm/g, and percentage elongation can reach 2.44%; The composite tensile index of embodiment 3 can reach 32.59Nm/g, and percentage elongation can reach 2.37%; The composite tensile index of embodiment 4 can reach 37.18Nm/g, and percentage elongation can reach 2.42%; The composite tensile index of embodiment 5 can reach 41.25Nm/g, and percentage elongation can reach 2.94%.Under the effect of PVA fiber, string and discarded FPR combine good; Wetting agent makes being uniformly dispersed of discarded FPR.
Embodiment 6:
1) by beating degree be first the broad-leaved wood fiber of 43 ° of SR and 90 DEG C of water miscible PVA fiber dispersion in water, use defiberizing machine to stir 2min continuously, fiber be dispersed in water.Then add discarded FPR isooctyl phenyl ether infiltrated through polyethylene glycol, continue stirring at low speed 20s, obtain pending slurries.Wherein broad-leaved wood fiber accounts for 65% of gross mass, and 16%, the PVA fiber that discarded FPR accounts for gross mass accounts for 18% of gross mass, and polyethylene glycol accounts for 1% of gross mass to isooctyl phenyl ether.
2) using page to copy and get device, by step 1) slurries that obtain manufacture paper with pulp into l Water Paper page.
3) squeeze l Water Paper page, squeeze pressure is 4MPa, and the squeezing time is 40s, and the final web dryness that controls is 30 ~ 40%.
4) l Water Paper page is dried, and the temperature of drier is 103 DEG C, and drying time is 4min.After l Water Paper page bone dry, take out, namely obtain string/discarded FPR composite.
Embodiment 7:
1) by beating degree be first the cotton fiber of 44 ° of SR and 90 DEG C of water miscible PVA fiber dispersion in water, use defiberizing machine to stir 2min continuously, fiber be dispersed in water.Then add the discarded FPR infiltrated through DTAB, continue stirring at low speed 25s, obtain pending slurries.Wherein cotton fiber accounts for 75% of gross mass, and 19%, the PVA fiber that discarded FPR accounts for gross mass accounts for 5% of gross mass, and DTAB accounts for 1% of gross mass.
2) using page to copy and get device, by step 1) slurries that obtain manufacture paper with pulp into l Water Paper page.
3) squeeze l Water Paper page, squeeze pressure is 4.5MPa, and the squeezing time is 50s, and the final web dryness that controls is 30 ~ 40%.
4) l Water Paper page is dried, and the temperature of drier is 104 DEG C, and drying time is 4.5min.After l Water Paper page bone dry, take out, namely obtain string/discarded FPR composite.
Embodiment 8:
1) by beating degree be first the flax fibre of 45 ° of SR and 90 DEG C of water miscible PVA fiber dispersion in water, use defiberizing machine to stir 2.5min continuously, fiber be dispersed in water.Then add discarded FPR isooctyl phenyl ether infiltrated through polyethylene glycol, continue stirring at low speed 28s, obtain pending slurries.Wherein flax fibre accounts for 55% of gross mass, and 28%, the PVA fiber that discarded FPR accounts for gross mass accounts for 16% of gross mass, and polyethylene glycol accounts for 1% of gross mass to isooctyl phenyl ether.
2) using page to copy and get device, by step 1) slurries that obtain manufacture paper with pulp into l Water Paper page.
3) squeeze l Water Paper page, squeeze pressure is 4MPa, and the squeezing time is 30s, and the final web dryness that controls is 30 ~ 40%.
4) l Water Paper page is dried, and the temperature of drier is 102 DEG C, and drying time is 4min.After l Water Paper page bone dry, take out, namely obtain string/discarded FPR composite.
The present invention has the following advantages:
The invention provides a kind of reuse method of glass fibre reinforced plastic waste, adopt wet papermaking technology to prepare a kind of string/discarded FPR composite, achieve the recycling of glass fibre reinforced plastic waste.The present invention selects discarded FPR, string and PVA fiber, has given full play to the performance of each component, carries out recycling based on wet papermaking process to glass fibre reinforced plastic waste, and recoverying and utilizing method simple possible, recovery utilization rate are high, can reach 100%.
Composite of the present invention can be used on the sandwich layer of boxboard, and discarded FPR can Substitute For Partial string, on the one hand discarded FPR is turned waste into wealth, and has saved plant fiber material on the other hand.
Claims (10)
1. a preparation method for string/discarded FPR composite, is characterized in that, comprise the following steps:
(1) by mass percentage, first the PVA fiber dispersion of the string of 50 ~ 80% and 5 ~ 20% is stirred in water, then add the discarded FPR powder infiltrated through wetting agent of 10 ~ 30%, stir, obtain pending slurries;
(2) the pending slurries in step (1) are carried out manufacture paper with pulp and shapingly obtain l Water Paper page;
(3) the l Water Paper page obtained is squeezed, obtain half-dried page;
(4) dry half-dried page, obtain string/discarded FPR composite.
2. the preparation method of a kind of string according to claim 1/discarded FPR composite, is characterized in that, stir 2 ~ 3min when string and PVA fiber dispersion are in water in step (1); After adding the discarded FPR powder infiltrated through wetting agent, stir 20 ~ 30s.
3. the preparation method of a kind of string according to claim 1/discarded FPR composite, it is characterized in that, through the discarded FPR powder of wetting agent infiltration in step (1), be according to mass percent, obtained by the discarded FPR powder of the wetting agent infiltration 9 ~ 29% of 1%.
4. the preparation method of a kind of string according to claim 1/discarded FPR composite, is characterized in that, adopts page to copy to get device to carry out manufacturing paper with pulp shaping in step (2); In step (3), squeeze pressure is 4 ~ 5MPa, and the squeezing time is 30 ~ 60s.
5. the preparation method of a kind of string according to claim 1/discarded FPR composite, is characterized in that, dry 4 ~ 5min in step (4) at 102 ~ 105 DEG C.
6. string/discarded FPR composite, is characterized in that, by mass percentage, comprise following component:
Discarded FPR:9 ~ 29%; String: 50 ~ 80%; PVA fiber: 5 ~ 20%; Wetting agent: 1%.
7. a kind of string according to claim 6/discarded FPR composite, it is characterized in that, organic toughened glass obtains through pulverizing and crossing 40 mesh sieves by discarded FPR, wherein containing percentage by weight is the glass fibre of 55 ~ 60%, glass fiber diameter is 15 ~ 20 μm, and glass fibre length is 30 ~ 200 μm.
8. a kind of string according to claim 6/discarded FPR composite, it is characterized in that, string adopts needle-leaved wood fibre, broad-leaved wood fiber, flax fibre or cotton fiber, and its beating degree is 43 ~ 46 ° of SR.
9. a kind of string according to claim 6/discarded FPR composite, it is characterized in that, PVA fiber is 90 DEG C of water miscible technical fibers.
10. a kind of string according to claim 6/discarded FPR composite, it is characterized in that, wetting agent is that lauryl sodium sulfate, polyethylene glycol are to isooctyl phenyl ether or DTAB.
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| CN201510867425.7A CN105421135B (en) | 2015-11-30 | 2015-11-30 | A kind of string/discarded FRP composites and preparation method thereof |
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| CN201510867425.7A CN105421135B (en) | 2015-11-30 | 2015-11-30 | A kind of string/discarded FRP composites and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105926348A (en) * | 2016-06-16 | 2016-09-07 | 铜陵锋帆彩色印务有限公司 | Peculiar smell preventing honeycomb packaging carton and preparation method thereof |
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| Publication number | Publication date |
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| CN105421135B (en) | 2017-11-28 |
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