CN108070955B - Preparation process and production system of light high-strength fibrilia composite board - Google Patents
Preparation process and production system of light high-strength fibrilia composite board Download PDFInfo
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- CN108070955B CN108070955B CN201711079257.0A CN201711079257A CN108070955B CN 108070955 B CN108070955 B CN 108070955B CN 201711079257 A CN201711079257 A CN 201711079257A CN 108070955 B CN108070955 B CN 108070955B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
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- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- 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
Abstract
The invention relates to the technical field of composite board manufacturing, and discloses a preparation process and a production system of a light high-strength fibrilia composite board, wherein the preparation process of the light high-strength fibrilia composite board comprises the following procedures: preparing and pretreating raw materials, metering and proportioning, removing impurities and mixing, combing, air-laying, needling to form felt, vacuum peculiar smell treating and thermoplastic reinforcing; the production system of the preparation process of the light high-strength fibrilia composite board comprises the following devices which are sequentially arranged according to the sequence from input to output of material flow: the method comprises the steps of opening a packing machine → a coarse opener → a dust removal system → a high-speed comber → an air-jet netting machine → a pre-needling machine → a main needling machine → a vacuum odor removing machine → an oven → six continuous heating and rolling forming machine → an automatic sorting and sizing cutting machine. The invention realizes the light weight, high strength and high environmental protection performance of the fibrilia composite board.
Description
Technical Field
The invention relates to the technical field of composite board manufacturing, in particular to a preparation process and a production system of a light high-strength fibrilia composite board.
Background
In fiber-reinforced composite materials used in industrial fields such as automobile parts, door inner panels, trunks, ceilings, instrument panels, fender liners, spoilers, and the like are often manufactured using chemical fiber-reinforced thermoplastic matrices. The chemical fiber is usually glass fiber, aramid fiber and the like, and has the defects of high brittleness, poor environmental protection and no accordance with the future development direction of automobiles. With the continuous improvement of the social and economic level and the enhancement of the health and safety awareness of consumers, people are more and more concerned about the functions, aesthetic feeling and comfort of the automotive interior and the problems of odor, environmental protection and health hazard of automotive interior materials while pursuing the appearance and power of automobiles.
In order to meet the requirements of environmental protection and sustainable development, plant fibrilia composite materials are also developed. For example, patent document (publication No. CN101549671A) discloses a fibrilia automotive interior part and a method for producing the same, in which jute fibers and polypropylene fibers are compounded into a felt, and then the felt is directly baked and heated in an oven and surface-bonded, and then is subjected to cold press molding through a product mold.
However, since the fibrilia contains a large amount of hydroxyl groups and is a hydrophilic polar material, and the polypropylene is a hydrophobic non-polar material, the vegetable fibrilia which is hydrophilic in nature and the polypropylene which is hydrophobic are incompatible, and the interfacial compatibility between the non-treated fibrilia and the resin matrix is very poor. Therefore, the fibrilia composite board produced by the prior art has the advantages of outstanding rigidity of fibrilia, poor cohesion between fibers, longer surface hairiness of the fabric, and low bonding force between the fibrilia and the polypropylene fiber (high polymer PP fiber), thereby weakening the mechanical strength of the fibrilia composite board.
In addition, the fibrilia contains lignin, pectin, wax and nitrogen-containing substances, and after the fibrilia composite board is prepared, the substances and oxygen undergo chemical reaction, and harmful substances such as aldehydes, benzene and the like can be slowly emitted, so that the environment-friendly performance of the fibrilia composite board produced by adopting the prior art is not ideal.
Furthermore, in the manufacturing process of the fibrilia composite board in the prior art, the lapping machine is used for realizing the lapping of the mixed fibers, the uniformity of the fiber distribution is poor, and the fibers in the felted inner part are not uniformly distributed in all directions, thereby reducing the overall strength of the fibrilia composite board.
Disclosure of Invention
In order to solve the problems, the invention provides a preparation process and a production system of a light high-strength fibrilia composite board, aiming at realizing the light, high-strength and high environmental protection performance of the fibrilia composite board, and the specific technical scheme is as follows:
the preparation process of the light high-strength fibrilia composite board is characterized by comprising the following steps of:
step 1, raw material preparation and pretreatment: adopting high-molecular PP fiber and plant fibrilia as preparation raw materials of the fibrilia composite board, and carrying out modification and reinforcement treatment on the plant fibrilia; loosening the high polymer PP fiber;
step 2, metering and proportioning step: weighing and proportioning the high polymer PP fiber and the plant fibrilia;
step 3, impurity removal and mixing step: mixing the high polymer PP fiber and the plant fibrilia in the step 2 and removing impurities;
step 4, combing step: combing the fiber after impurity removal and mixing by adopting a high-speed combing machine;
step 5, air-laying step: preparing the combed mixed fibers into a fiber web by adopting an airflow web forming machine;
step 6, needle-punching felt-forming step: adopting a pre-needling machine to perform needling on one side of the fiber web to form a felt preliminarily; then, a main needling machine with the function of up-down needling is adopted to perform needling on the two sides of the fiber web;
step 7, vacuum odor treatment step: after the fiber web is needled into a felt, conveying the felt into a vacuum odor removing machine to remove odor;
step 8, thermoplastic reinforcement treatment step: conveying the fiber web with the peculiar smell removed into an oven, and performing high-temperature thermoplastic enhancement treatment;
step 9, roll forming: and conveying the fiber web subjected to the thermoplastic reinforcement treatment to a rolling forming machine, and rolling to obtain the fibrilia composite board.
In the preparation and pretreatment processes of the raw materials, the loosening treatment of the high polymer PP fibers can be realized by a bale opener.
In the metering and proportioning step of the step 2, the weight ratio of the high molecular PP fiber to the plant fibrilia is preferably as follows: the proportion of the high polymer PP fiber is 38-50%, and the proportion of the plant fibrilia is 62-50%.
As a further preferable scheme, the weight ratio of the high molecular PP fiber to the plant fibrilia is: the proportion of the high polymer PP fiber is 50 percent, and the proportion of the plant fibrilia is 50 percent.
In the preparation process of the fibrilia composite board, the modification and enhancement treatment of the plant fibrilia comprises the process step of performing the modification and enhancement treatment on the plant fibrilia by adopting the JFC penetrant.
Specifically, the modification and enhancement treatment of the plant fibrilia comprises the following process steps:
step 1, washing fibrilia with water;
step 2, drying the washed fibrilia;
step 3, preparing working solution: the proportion of the penetrating agent working solution is as follows: adding 0.8-1 g of JFC penetrant into each liter of water;
step 4, pre-moistening the fibrilia with warm water;
step 5, putting the fibrilia into the working solution for heat preservation and soaking, wherein the fixed bath ratio is 1: 50;
step 6, warm water washing;
step 7, washing with cold water;
and 8, drying.
In order to improve the manufacturing quality and the production efficiency of the fibrilia composite board, the rolling forming machine is a six-channel continuous heating rolling forming machine.
In order to cut the roll-formed fibrilia composite board into required dimension specifications, the preparation process of the light high-strength fibrilia composite board further comprises the following steps of 10: and cutting and molding the rolled fibrilia composite board by adopting an automatic sorting and sizing cutting machine.
In the impurity removal mixing procedure, a coarse opener is adopted to break up and mix the high polymer PP fiber and the plant fibrilia, then the high polymer PP fiber and the plant fibrilia are conveyed to a dust removal system, and a fan of the dust removal system is used for absorbing dust and extruding the mixture into the wadding.
The production system of the fibrilia composite board adopting the process method comprises the following devices which are arranged in sequence from input to output according to material flows: the method comprises the steps of opening a packing machine → a coarse opener → a dust removal system → a high-speed comber → an air-flow net forming machine → a pre-needling machine → a main needling machine → a vacuum odor removing machine → an oven → a rolling forming machine.
As a further improvement, the production system of the fibrilia composite board further comprises an automatic sorting and sizing cutting machine which is arranged after the rolling forming machine according to the sequence of material flow from input to output, wherein the rolling forming machine is a six-channel continuous heating rolling forming machine.
The invention has the beneficial effects that:
firstly, according to the preparation process of the light high-strength fibrilia composite board, the high-temperature permeation enhancement technology is adopted, the plant fibrilia is subjected to modification enhancement treatment, and the contents of lignin, pectin, wax and nitrogen-containing substances in the fibrilia subjected to modification enhancement treatment are greatly reduced, so that the lignin, the pectin, the wax and the nitrogen-containing substances in the fibrilia composite board can be prevented from generating chemical reaction with oxygen in the air, and the generation of harmful substances such as aldehydes, benzene and the like is avoided or reduced. Meanwhile, the fibrilia treated by the high-temperature penetration enhancing technology is softened, the compatibility of a bonding interface of the fibrilia and the high-molecular PP fiber is improved, and the bonding strength of the two fibers is increased.
Secondly, according to the preparation process of the light high-strength fibrilia composite plate, the air-laid technology is adopted to carry out air-laid on the mixed fibers, compared with the conventional fibrilia composite plate manufacturing process in which a net laying machine is used to realize the net formation of the mixed fibers, the uniformity of the distribution of the mixed fibers in all directions is better under the action of air flow, and therefore the overall strength of the fibrilia composite plate is improved.
Thirdly, according to the preparation process of the light-weight high-strength fibrilia composite board, by comprehensive process measures such as fibrilia modification and reinforcement, air-laying, double-sided opposite needling and the like, the uniformity of fibers in the composite board can be better, and the associativity of the high-molecular PP fibers and the plant fibrilia is better, so that the fibrilia composite board under the condition of low density can still keep higher strength, and the light weight of the fibrilia composite board is further realized.
Fourthly, compared with the conventional preparation process in the prior art, the preparation process of the light high-strength fibrilia composite plate increases the vacuum deodorization treatment process, and after the mixed fibers are needled into a felt, the vacuum adsorption technology is adopted to adsorb peculiar smell, so that the prepared fibrilia composite plate has better environmental protection property.
Fifth, the preparation process of the light-weight high-strength fibrilia composite board adopts a glue-free composite technology, enables the manufactured fibrilia composite board to achieve the functions of light weight, high strength, high toughness and good flame retardance, effectively eliminates formaldehyde release and odor harm of Volatile Organic Compounds (VOC), and solves the environmental problem of poor air quality in a vehicle by adopting the automobile interior material of the fibrilia composite board.
Drawings
FIG. 1 is a schematic view of the general process flow of the preparation process of a light-weight high-strength fibrilia composite board of the invention;
fig. 2 is a schematic diagram of a production system using the process for manufacturing a lightweight high-strength hemp fiber composite board according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
fig. 1 to fig. 1 show an embodiment of a process for manufacturing a lightweight high-strength hemp fiber composite board according to the present invention, which comprises the following steps:
step 1, raw material preparation and pretreatment: adopting high-molecular PP fiber and plant fibrilia as preparation raw materials of the fibrilia composite board, and carrying out modification and reinforcement treatment on the plant fibrilia; loosening the high polymer PP fiber;
step 2, metering and proportioning step: weighing and proportioning the high polymer PP fiber and the plant fibrilia;
step 3, impurity removal and mixing step: mixing the high polymer PP fiber and the plant fibrilia in the step 2 and removing impurities;
step 4, combing step: combing the fiber after impurity removal and mixing by adopting a high-speed combing machine;
step 5, air-laying step: preparing the combed mixed fibers into a fiber web by adopting an airflow web forming machine;
step 6, needle-punching felt-forming step: adopting a pre-needling machine to perform needling on one side of the fiber web to form a felt preliminarily; then, a main needling machine with the function of up-down needling is adopted to perform needling on the two sides of the fiber web;
step 7, vacuum odor treatment step: after the fiber web is needled into a felt, conveying the felt into a vacuum odor removing machine to remove odor;
step 8, thermoplastic reinforcement treatment step: conveying the fiber web with the peculiar smell removed into an oven, and performing high-temperature thermoplastic enhancement treatment;
step 9, roll forming: and conveying the fiber web subjected to the thermoplastic reinforcement treatment to a rolling forming machine, and rolling to obtain the fibrilia composite board.
In a preferred embodiment of this embodiment, in the metering and proportioning step of step 2, the weight ratio of the high molecular PP fibers and the plant hemp fibers is: the proportion of the high polymer PP fiber is 38-50%, and the proportion of the plant fibrilia is 62-50%.
As a further preferable scheme of this embodiment, the weight ratio of the polymer PP fiber and the plant fibrilia is: the proportion of the high polymer PP fiber is 50 percent, and the proportion of the plant fibrilia is 50 percent.
In the preparation process of the fibrilia composite board, the modification and enhancement treatment of the plant fibrilia comprises the process step of modifying and enhancing the plant fibrilia by adopting a JFC penetrant (fatty alcohol-polyoxyethylene ether).
Specifically, the modification and enhancement treatment of the plant fibrilia comprises the following process steps:
step 1, washing fibrilia with water;
step 2, drying the washed fibrilia;
step 3, preparing working solution: the proportion of the penetrating agent working solution is as follows: adding 0.8-1 g of JFC penetrant into each liter of water;
step 4, pre-moistening the fibrilia with warm water;
step 5, putting the fibrilia into the working solution for heat preservation and soaking, wherein the fixed bath ratio is 1: 50;
step 6, warm water washing;
step 7, washing with cold water;
and 8, drying.
In order to improve the manufacturing quality and the production efficiency of the fibrilia composite board, the rolling forming machine of the embodiment is a six-pass continuous heating rolling forming machine.
In order to cut the roll-formed fibrilia composite board into the required dimension, the process for preparing the light high-strength fibrilia composite board of the embodiment further comprises the following steps 10: and cutting and molding the rolled fibrilia composite board by adopting an automatic sorting and sizing cutting machine.
In the impurity removal mixing process of this embodiment, a coarse opener is adopted to break up and mix the high polymer PP fibers and the plant fibrilia, and then the high polymer PP fibers and the plant fibrilia are conveyed to a dust removal system, and are subjected to dust collection by a fan of the dust removal system to be extruded into the floccule.
In the air-laid process of this embodiment, the fibers fall off from the saw teeth of the card clothing under the combined action of the centrifugal force generated by the high-speed rotation of the cylinder and the air flow, and are conveyed by the air flow and condensed on the web-forming curtain to form a web with the fibers distributed uniformly in three-dimensional directions; compared with the prior art which adopts a lapping machine to form the net, the method can form a uniform hemp felt with a heavier single-layer gram weight (the gram weight is doubled), and the felt material performance can not have obvious difference due to the direction.
In the combing process of this embodiment, the process parameters of the combing machine are set as follows: a main cylinder: 850rpm, small cylinder 32m/min, mesh cage 101 m/min.
Example 2:
fig. 2 to fig. 2 show an embodiment of a production system of a process for manufacturing a lightweight high-strength hemp fiber composite board according to the present invention, which comprises devices arranged in the order of material flow from input to output: the method comprises the steps of opening a packing machine → a coarse opener → a dust removal system → a high-speed comber → an air-jet netting machine → a pre-needling machine → a main needling machine → a vacuum odor removing machine → an oven → six continuous heating and rolling forming machine → an automatic sorting and sizing cutting machine.
Example 3:
taking the fibrilia composite board adopting the conventional process and the fibrilia composite board adopting the invention, and respectively carrying out density detection and strength test. Wherein, the fibrilia in the preparation process of the fibrilia composite board adopting the conventional process is not modified and enhanced, and the net-forming process adopts a net-laying machine to form the net.
The density data of the fibrilia composite board are measured as follows:
| fibrilia composite board adopting conventional process | The fibrilia composite board of the invention | |
| Density of | 0.54g/cm3 | 0.38g/cm3 |
The measured tensile strength and flexural strength data are compared as follows:
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The preparation process of the light high-strength fibrilia composite board is characterized by comprising the following steps of:
step 1, raw material preparation and pretreatment: adopting high-molecular PP fiber and plant fibrilia as preparation raw materials of the fibrilia composite board, and carrying out modification and reinforcement treatment on the plant fibrilia; loosening the high polymer PP fiber;
step 2, metering and proportioning step: weighing and proportioning the high polymer PP fiber and the plant fibrilia;
step 3, impurity removal and mixing step: mixing the high polymer PP fiber and the plant fibrilia in the step 2 and removing impurities;
step 4, combing step: combing the fiber after impurity removal and mixing by adopting a high-speed combing machine;
step 5, air-laying step: preparing the combed mixed fibers into a fiber web by adopting an airflow web forming machine;
step 6, needle-punching felt-forming step: adopting a pre-needling machine to perform needling on one side of the fiber web to form a felt preliminarily; then, a main needling machine with the function of up-down needling is adopted to perform needling on the two sides of the fiber web;
step 7, vacuum odor treatment step: after the fiber web is needled into a felt, conveying the felt into a vacuum odor removing machine to remove odor;
step 8, thermoplastic reinforcement treatment step: conveying the fiber web with the peculiar smell removed into an oven, and performing high-temperature thermoplastic enhancement treatment;
step 9, roll forming: conveying the fiber web subjected to the thermoplastic reinforcement treatment to a rolling forming machine, and rolling to obtain a fibrilia composite board; the rolling forming machine is a six-channel continuous heating rolling forming machine;
the modification and enhancement treatment of the plant fibrilia comprises the process step of adopting a JFC penetrant to perform modification and enhancement treatment on the plant fibrilia;
the modification and enhancement treatment of the plant fibrilia comprises the following process steps:
step 1, washing fibrilia with water;
step 2, drying the washed fibrilia;
step 3, preparing working solution: the proportion of the penetrating agent working solution is as follows: adding 0.8-1 g of JFC penetrant into each liter of water;
step 4, pre-moistening the fibrilia with warm water;
step 5, putting the fibrilia into the working solution for heat preservation and soaking, wherein the fixed bath ratio is 1: 50;
step 6, warm water washing;
step 7, washing with cold water;
step 8, drying;
in the impurity removal and mixing procedure, a coarse opener is adopted to break up and mix the high polymer PP fiber and the plant fibrilia, then the high polymer PP fiber and the plant fibrilia are conveyed to a dust removal system, and a fan of the dust removal system is used for absorbing dust and extruding the mixture into wadding;
in the air-laid process, under the combined action of centrifugal force generated by high-speed rotation of a cylinder of an air-laid machine and air flow, fibers fall off from the saw teeth of the card clothing and are conveyed by the air flow and condensed on a web-forming curtain to form a fiber web with fibers distributed uniformly in three-dimensional directions.
2. The preparation process of the light-weight high-strength fibrilia composite board according to claim 1, wherein in the metering and proportioning step of the step 2, the weight ratio of the high-molecular PP fiber to the plant fibrilia is as follows: the proportion of the high polymer PP fiber is 38-50%, and the proportion of the plant fibrilia is 62-50%.
3. The preparation process of the light-weight high-strength fibrilia composite board according to claim 2, wherein the weight ratio of the high-molecular PP fiber to the plant fibrilia is as follows: the proportion of the high polymer PP fiber is 50 percent, and the proportion of the plant fibrilia is 50 percent.
4. The preparation process of the light-weight high-strength fibrilia composite board according to claim 1, further comprising the following steps of 10: and cutting and molding the rolled fibrilia composite board by adopting an automatic sorting and sizing cutting machine.
5. A production system for a process for preparing a lightweight high-strength fibrilia composite board according to any one of claims 1 to 4, wherein the production system comprises the following devices arranged in sequence from input to output of material flow: the method comprises the following steps of (1) opening a packing machine → a coarse opener → a dust removal system → a high-speed comber → an air-flow net forming machine → a pre-needling machine → a main needling machine → a vacuum odor removing machine → an oven → a rolling forming machine; the fibrilia composite board is prepared from raw materials including high-molecular PP (polypropylene) fibers and plant fibrilia, wherein the plant fibrilia is obtained by modifying and enhancing the plant fibrilia by adopting a JFC (JFC) penetrant; wherein the rolling forming machine is a six-channel continuous heating rolling forming machine;
the modification and enhancement treatment of the plant fibrilia comprises the following process steps:
step 1, washing fibrilia with water;
step 2, drying the washed fibrilia;
step 3, preparing working solution: the proportion of the penetrating agent working solution is as follows: adding 0.8-1 g of JFC penetrant into each liter of water;
step 4, pre-moistening the fibrilia with warm water;
step 5, putting the fibrilia into the working solution for heat preservation and soaking, wherein the fixed bath ratio is 1: 50;
step 6, warm water washing;
step 7, washing with cold water;
step 8, drying;
the coarse opener breaks up and mixes the high polymer PP fibers and the plant fibrilia, then conveys the mixture to a dust removal system, and a fan of the dust removal system sucks dust to extrude the mixture into wadding; the air-laid machine is characterized in that under the combined action of centrifugal force generated by high-speed rotation of the cylinder and air flow, fibers fall off from the card clothing sawteeth and are conveyed by the air flow and condensed on a web forming curtain to form a web with fibers distributed uniformly in three-dimensional directions.
6. The system for manufacturing a lightweight high strength composite fibrilia plate as claimed in claim 5, further comprising an automatic sizing cutter arranged after the roll former in order of material flow from input to output.
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| CN109113289A (en) * | 2018-08-24 | 2019-01-01 | 江阴延利汽车饰件股份有限公司 | A kind of green ecological flaxen fiber integrates wall coverings plate and preparation method thereof |
| CN109825950A (en) * | 2019-02-19 | 2019-05-31 | 福建省正士工贸有限公司 | A kind of natural fiber and chemical fibre are mixed with cloth material method |
| CN110040152B (en) * | 2019-03-25 | 2020-06-19 | 江阴延利汽车饰件股份有限公司 | Preparation method of light-weight environment-friendly high-speed train sliding plug door cover plate |
| CN110104007B (en) * | 2019-03-25 | 2020-07-14 | 中车唐山机车车辆有限公司 | Environment-friendly high-speed train flat top plate and preparation method thereof |
| CN110126862A (en) * | 2019-03-25 | 2019-08-16 | 江阴延利汽车饰件股份有限公司 | A kind of light weight environment-friendly type side top boards of high-speed train and preparation method |
| CN110104004A (en) * | 2019-03-25 | 2019-08-09 | 中车唐山机车车辆有限公司 | A kind of light weight environment-friendly type bullet train side wall panel and preparation method |
| CN111516304B (en) * | 2020-03-20 | 2022-05-17 | 江阴延利汽车饰件股份有限公司 | Thermoplastic natural composite fiber interior trim panel and preparation process thereof |
| CN112643840B (en) * | 2021-01-11 | 2021-09-17 | 褚乃博 | Natural plant board with filtering and specific odor releasing functions |
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| CN1039274A (en) * | 1988-07-15 | 1990-01-31 | 中国农村经营报河南科技咨询部 | The production method and the carpet of fiber crops suede nonwoven acupuncture carpet with rubber back |
| CN1126055A (en) * | 1995-01-05 | 1996-07-10 | 马重子 | Treatment technique for fibre tows of cigarette filtertip |
| CN100396836C (en) * | 2004-09-08 | 2008-06-25 | 吴先祥 | Nonwoven cloth-with firilia and production thereof |
| CN101324012B (en) * | 2008-07-15 | 2010-10-13 | 江苏紫荆花纺织科技股份有限公司 | Manufacturing method of bast fiber nonwoven fabric |
| CN101550635A (en) * | 2009-05-18 | 2009-10-07 | 奇瑞汽车股份有限公司 | Method for preparing long vegetable fiber composite material, long vegetable fiber composite board and purpose thereof |
| DE202010012517U1 (en) * | 2009-08-07 | 2011-01-20 | Duetto License Ag | sheet |
| CN202865550U (en) * | 2012-07-30 | 2013-04-10 | 中冶华天工程技术有限公司 | Double-surface opposite-punching needle-punching machine |
| CN106567138B (en) * | 2016-10-27 | 2018-09-18 | 青岛大学 | A kind of fine design method of hemp |
| CN107261189B (en) * | 2017-06-23 | 2020-05-19 | 南宁师范大学 | Preparation method of sisal fiber environment-friendly medical gauze |
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