CN103786350B - A kind of flaxen fiber machinery of low VOC, nanometer, chemically combined preparation method - Google Patents

A kind of flaxen fiber machinery of low VOC, nanometer, chemically combined preparation method Download PDF

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Publication number
CN103786350B
CN103786350B CN201410010997.9A CN201410010997A CN103786350B CN 103786350 B CN103786350 B CN 103786350B CN 201410010997 A CN201410010997 A CN 201410010997A CN 103786350 B CN103786350 B CN 103786350B
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Prior art keywords
flaxen fiber
fiber
coupling agent
nanoclay
nanometer
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CN201410010997.9A
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CN103786350A (en
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王春红
任子龙
赵玲
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CHANGCHUN BOCHAO AUTO ACCESSORIES Co Ltd
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CHANGCHUN BOCHAO AUTO ACCESSORIES Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • 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

Abstract

The present invention discloses the flaxen fiber machinery of low VOC a kind of, nanometer, chemically combined preparation method, it is characterized in that, the flaxen fiber and polyacrylic mass ratio are flaxen fiber 50%, polypropylene 50%, the flaxen fiber machinery of low VOC a kind of, nanometer, chemically combined preparation method include mechanically modifying method, nano clay modified method, coupling agent modified method, and the non-woven combination hot press forming technology of modified use prepares composite material.The mechanically modifying method is that the flaxen fiber after rolling rubbing is mixed with polypropylene fibre, the nano clay modified method is to prepare nanoclay suspension, the coupling agent modified method is to mix the nanoclay suspension of preparation with the coupling agent solution of preparation, then by nanoclay-coupling agent aqueous solution spray into fiber crops, polypropylene composite fibre, the sprayed nanoclay-coupling agent aqueous solution is the 5-25% of fiber crops, polypropylene composite fibre.

Description

A kind of flaxen fiber machinery of low VOC, nanometer, chemically combined preparation method
Technical field
The present invention relates to composite material for weaving technical field more particularly to the flaxen fiber machinery of low VOC a kind of, nanometer, change Learn the preparation method combined.
Background technique
With the increasingly in short supply, energy prices constantly soaring of international energy and environmental protection pressure is increasing, national governments The research of energy-saving and environmental protection technology is increasingly paid attention to, one of most important one measure is exactly to promote lightweight, environmentally friendly The application of material.Natural biological flaxen fiber composite material is a kind of new material for meeting the requirements such as energy-saving and environmental protection, recyclable.It It can be widely applied and the fields such as vehicle, building, aircraft and routine office work articles.Natural biological flaxen fiber includes hemp, flax, sword The low-cost bios material such as fiber crops.It is not only from a wealth of sources, and high-strength, Gao Mo and impact resistance it is strong.However, due to natural ramie fiber Enhancing composite material is affected in the application because VOC, especially formaldehyde, acetaldehyde are exceeded serious, so being badly in need of using Modification technology reduces the VOC volatile quantity of such material in use.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, that the purpose of the present invention is to provide the flaxen fibers of low VOC a kind of is mechanical, receives Rice, chemically combined preparation method, it is intended to solve to reduce VOC (especially formaldehyde, acetaldehyde) volatile quantity of composite material, increase fiber crops The problems such as use scope of fiber reinforced polypropylene composite material.
Technical scheme is as follows:
The invention reside in flaxen fiber machinery, the nanometer, chemically combined preparation method of a kind of low VOC is provided, pass through machinery It rolls kneading action and can remove the brittleness such as the pectin on flaxen fiber surface, hemicellulose and formaldehyde and acetaldehyde can be caused etc. and generate Fibre composition；The laminar structured volatilization that can inhibit VOC of nanoclay；Flaxen fiber and polypropylene can be enhanced in coupling agent Between interfacial adhesion, and then can inhibit the generation and volatilization of VOC.
Specific embodiment
The present invention provides the flaxen fiber machinery of low VOC a kind of, nanometer, chemically combined preparation method, of the invention to make Purpose, technical solution and effect are clearer, clear, and the present invention is described in more detail below.It should be appreciated that this place is retouched The specific embodiment stated is only used to explain the present invention, is not intended to limit the present invention.
A kind of flaxen fiber machinery of low VOC of the present invention, nanometer, flaxen fiber described in chemically combined preparation method and gather The mass ratio of propylene are as follows: flaxen fiber 50%, polypropylene 50%.
A kind of flaxen fiber machinery of low VOC of the present invention, nanometer, chemically combined preparation method include mechanically modifying method, Nano clay modified method, coupling agent modified method, it is modified that composite material is prepared using non-woven combination hot press forming technology. The machinery, nanometer, chemically combined preparation method include: that the flaxen fiber after rolling rubbing is mixed with polypropylene fibre, are prepared Nanoclay suspension mixes the nanoclay suspension of preparation with the coupling agent solution of preparation, by nanoclay-coupling agent For aqueous solution spray into fiber crops, polypropylene composite fibre, the sprayed nanoclay-coupling agent aqueous solution is fiber crops, polypropylene The 5-25% of composite fibre.
The flaxen fiber, which rolls rubbing mechanical treatment and is divided into 4th area, roll rubbing processing to flaxen fiber, wherein 1st area Totally 4 pairs of pressure rollers, there is 20 grooves on each pressure roller, and 1 section length is 56.2cm；Wherein 2nd area totally 4 pairs of pressure rollers have on each pressure roller 22 grooves, 2 section lengths are 56.2cm；Wherein 3rd area totally 2 pairs of pressure rollers have 24 grooves on each pressure roller, and 3 section lengths are 24.2cm；Wherein 4th area totally 2 pairs of pressure rollers have 24 grooves on each roller, and 4 section lengths are 24.2cm；Fiber after rolling rubbing It is spare after shredding.The flaxen fiber is hemp, flax, mestha, any one in jute, and the flaxen fiber is ground entering 1st area Kneadding humidifies 0-15% before rubbing with the hands, the rubbing number that rolls is 1-3 times, and the pressure between each pair of pressure roller is 700- 1600N。
The nano clay modified method glues fiber crops, the nanoclay of polypropylene composite fibre quality 0.25-1%, nanometer The dispersing agent of soil property amount 50% is added in the water of composite fibre quality 5-15%, first using mechanical agitator in 1000- 0.5-2h is stirred under 1300rpm revolving speed, then stirs 1.5-3h under 1700-2000rpm revolving speed, prepares evenly dispersed receive Rice clay aaerosol solution, wherein the flaxen fiber is hemp, flax, mestha, any one in jute, the nanoclay It is nano montmorillonite of the particle size range at 2-10 μm, the dispersing agent is polyvinylpyrrolidone.
The coupling agent modified method, takes appropriate coupling agent to stir evenly into the water, and the coupling agent is silane coupled The concentration of any one of 450,550,601,803 in agent, the coupling agent aqueous solution is 1-35%, takes appropriate coupling agent water-soluble For liquid spray into fiber crops, polypropylene composite fibre, the sprayed coupling agent aqueous solution is the 5- of fiber crops, polypropylene composite fibre 25%, the flaxen fiber is hemp, flax, mestha, any one in jute.
By shredding, combing, needle thorn, it is hot pressed into composite material, the hot pressing temperature is between 200-220 DEG C, the heat Press the time between 1-3min.
The invention discloses the flaxen fiber machinery of low VOC a kind of, nanometer, chemically combined preparation methods, it is characterized in that Selected flaxen fiber is one of hemp, flax, mestha, jute, and nanoclay is nano montmorillonite, and silane coupling agent is 450,550,601,803 one kind, resin are polypropylene.Rubbing mechanical processing method, coupling agent modified side are rolled in the present invention Method, nano clay modified method can be used alone, and can also combine two-by-two or triple combination uses, to fiber crops, polypropylene mixing The suspension or solution sprayed in fiber is the 5-25% of fiber crops, polypropylene composite fibre.The present invention uses machinery, nanometer, chemistry Technology is modified flaxen fiber and polypropylene fibre, reduces the yield and volatile quantity of VOC in composite material, increases fiber crops Application range of the fiber reinforced polypropylene composite material in industrial circle.
Embodiment 1
Take 50g hemp and 50g polypropylene fibre that composite material, hot pressing temperature is made through shredding, combing, needle thorn, hot pressing Degree is 200 DEG C, hot pressing time 3min.Testing result is that formaldehyde is 3.14mg/kg, acetaldehyde 34.63mg/kg.
Embodiment 2
100g hemp is taken to carry out rolling rubbing processing, fiber humidifies 10g, fiber before carrying out the 1st area and rolling rubbing Pass sequentially through 1st area, 2nd area, 3rd area, 4th area roll rubbing, the pressure between each pair of upper lower compression roller is about 750N, is opened after rubbing 1 time Pine is spare.Hemp after taking 50g to roll rubbing is made with 50g polypropylene fibre through shredding, combing, needle thorn, hot pressing compound Material, hot pressing temperature are 210 DEG C, hot pressing time 2.5min.Testing result is that formaldehyde is 3.21mg/kg, and acetaldehyde is 31.66mg/kg。
Embodiment 3
A 70g hemp is taken to carry out rolling rubbing processing, fiber humidifies 7g, fiber before carrying out the 1st area and rolling rubbing Pass sequentially through 1st area, 2nd area, 3rd area, 4th area roll rubbing, the pressure between each pair of upper lower compression roller is about 750N, is opened after rubbing 1 time Pine is spare.0.25g nano montmorillonite is taken, 0.125g polyvinylpyrrolidone is added in 15g water, is first existed with mechanical agitator 1h is stirred under 1350rpm, is then stirred 2h in 1700rpm, is prepared evenly dispersed nanoclay suspension.Nanoclay is hanged Supernatant liquid is sprayed by spray mode in hemp and polypropylene fibre in shredding link, and wherein hemp is 50g, and poly- third Alkene fiber is 50g, composite material is made through combing, needle thorn, hot pressing after, wherein hot pressing temperature is 215 DEG C, and hot pressing time is 2min.Testing result is that formaldehyde is 1.32mg/kg, acetaldehyde 12.00mg/kg.
Embodiment 4
0.25g nano montmorillonite is taken, 0.125g polyvinylpyrrolidone is added in 15g water, is first existed with mechanical agitator 1h is stirred under 1350rpm, is then stirred 2h in 1700rpm, is prepared evenly dispersed nanoclay suspension.5g550 is coupled Agent is added in nanoclay suspension and stirs evenly.By 20.375g nanoclay-coupling agent aaerosol solution spray to mixing In fiber, composite material is made through combing, needle thorn, hot pressing after, wherein hot pressing temperature is 220 DEG C, hot pressing time 1.5min. Testing result is that formaldehyde is 0.59mg/kg, acetaldehyde 15.50mg/kg.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention Protect range.

Claims (2)

1. the flaxen fiber machinery of low VOC a kind of, nanometer, chemically combined preparation method, which is characterized in that the flaxen fiber with Polyacrylic mass ratio is flaxen fiber 50%, polypropylene 50%, a kind of flaxen fiber machinery of low VOC, nanometer, chemical bonding Preparation method include mechanically modifying method, nano clay modified method, coupling agent modified method, it is modified to use non-woven knot Hot compacting technique prepares composite material；The mechanically modifying method is that the flaxen fiber and polypropylene fibre after rolling rubbing mix It closes, the nano clay modified method is to prepare nanoclay suspension, and the coupling agent modified method is the nanometer that will be prepared Slurry is mixed with the coupling agent solution of preparation, then mixes nanoclay-coupling agent aqueous solution spray to fiber crops, polypropylene In condensating fiber, the flaxen fiber, which rolls rubbing mechanical treatment and is divided into 4th area, roll rubbing processing to flaxen fiber, wherein 1st area Totally 4 pairs of pressure rollers have 20 grooves on each pressure roller, and 1 section length is 56.2cm, wherein 2nd area totally 4 pairs of pressure rollers, have on each pressure roller 22 grooves, 2 section lengths are 56.2cm, wherein 3rd area totally 2 pairs of pressure rollers, have 24 grooves on each pressure roller, 3 section lengths are 24.2cm has 24 grooves on each roller, 4 section lengths are 24.2cm, the fiber after rolling rubbing wherein 4th area totally 2 pairs of pressure rollers Spare after shredding, the flaxen fiber is too numb, flax, mestha, any one in jute, and the flaxen fiber is ground entering 1st area Kneadding humidifies 0-15% before rubbing with the hands, the rubbing number that rolls is 1-3 times, and the pressure between each pair of pressure roller is 700- 1600N。
2. the flaxen fiber machinery of low VOC, nanometer, chemically combined preparation method according to claim 1, which is characterized in that The nano clay modified method, by fiber crops, the nanoclay of polypropylene composite fibre quality 0.25-1%, nanoclay quality 50% dispersing agent is added in the water of composite fibre quality 5-15%, first using mechanical agitator in 1000-1300rpm revolving speed Lower stirring 0.5-2h, then stirs 1.5-3h under 1700-2000rpm revolving speed, prepares evenly dispersed nanoclay and suspends Solution, wherein the flaxen fiber is hemp, flax, mestha, any one in jute.
CN201410010997.9A 2014-01-02 2014-01-02 A kind of flaxen fiber machinery of low VOC, nanometer, chemically combined preparation method Active CN103786350B (en)

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CN104044276B (en) * 2014-06-29 2016-11-23 柳州美纳机械有限公司 The manufacture method of glass reinforced plastic pipe
CN105524349B (en) * 2014-10-21 2017-08-25 中国石油化工股份有限公司 A kind of low VOC polypropylene resin composites and preparation method thereof
CN104690979B (en) * 2015-02-16 2019-09-03 长春博超汽车零部件股份有限公司 A kind of low VOC natural-fiber composite material, preparation method and applications
CN106280513A (en) * 2015-06-05 2017-01-04 天津工业大学 A kind of low formaldehyde flaxen fiber and the preparation method of low VOC composite thereof
CN108049168B (en) * 2018-01-05 2023-11-10 长春博超汽车零部件股份有限公司 Fibrilia free of formaldehyde and acetaldehyde release and preparation method thereof
CN108099298B (en) * 2018-01-05 2023-08-01 长春博超汽车零部件股份有限公司 Natural fibrilia reinforced polymer matrix composite felt material with low formaldehyde and acetaldehyde release and preparation method thereof
CN109233320B (en) * 2018-09-29 2021-08-17 哈尔滨工业大学 Preparation method of plant fiber cloth/resin composite material with organic nano clay grafted on surface
CN114214785A (en) * 2022-01-13 2022-03-22 华南农业大学 Modified hemp polypropylene non-woven fabric and preparation method thereof

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CN101413209B (en) * 2008-11-12 2012-03-21 东华大学 Method for carbon fiber surface modification of plasma coated with nano colloidal sols by plasma treatment
CN101892584A (en) * 2009-05-22 2010-11-24 3M新设资产公司 Hydrophilic fiber object
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