CN104844937A - High-weather-resistance weaving polypropylene composite material and preparation method for same - Google Patents
High-weather-resistance weaving polypropylene composite material and preparation method for same Download PDFInfo
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- CN104844937A CN104844937A CN201510265439.1A CN201510265439A CN104844937A CN 104844937 A CN104844937 A CN 104844937A CN 201510265439 A CN201510265439 A CN 201510265439A CN 104844937 A CN104844937 A CN 104844937A
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- graphene
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- fge
- resistance
- iron oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to the field of high-weather-resistance woven bag materials, in particular to a graphene/polypropylene composite material and a preparation method for the same. The preparation method comprises graphene surface modification, wherein surface modification refers to modifying a heat-resistant component onto the surface of graphene; the heat-resistant component is iron oxide; the iron oxide is prepared by a sol-gel method; when the iron oxide is modified onto the surface of graphene, interlayer spacing of a graphene sheet is increased, then graphene forms more complete contact with a substrate, and the high thermal conductivity and gas barrier effects of graphene are organically combined with the heat resistance and the aging resistance of the iron oxide, so that the effect of high weather resistance is achieved.
Description
Technical field
The invention belongs to woven bag Material Field, relate to a kind of Graphene/polypropylene composite material and preparation method thereof.
Background technology
Composition mainly polypropylene (PP) and the polyethylene (PE) of Polywoven Bag, in forming process, use, storage process, be heated, light, oxygen, mechanical force, radiation, the factor such as water effect, its stuctures and properties can occur obviously to change, this chemical process is degraded, namely aging.Woven bag after aging can lose mechanical property, and usability is deteriorated, and even can not use.Plastics aging is mainly caused by once several reason: thermal destruction, oxidative degradation, photoaging degraded and power are degraded, and in order to solve the problem of aging of plastics, adding antiaging agent is the most frequently used also one of the most effective means.
Graphene was found so far first since 2004, the performances such as the mechanics of its excellence, heat conduction and conduction, became the object of many polymer-based composites research, to improve the performances such as the mechanics of matrix material, electricity and calorifics.In view of the nano effect of Graphene itself, its dispersion in polymer-based composite is unsatisfactory, there is more serious superimposed phenomenon, to the modification of Graphene, comprise inorganic nano-particle to modify and chemically grafting and modifying is also widely studied, give Graphene through this more functional or strengthen the performance of particle, increase Graphene and the consistency etc. of matrix by means of Graphene.
Summary of the invention
In order to improve the weathering resistance of woven bag matrix material further, first the present invention has prepared a kind of Graphene (FGE) of chemical modification, then it can be used as additive and PP matrix compound, improves the weathering resistance of PP matrix material.The interpolation of paper examines FGE is on the impact of composite materials property.
The preparation process of the Graphene (FGE) of chemical modification is as follows:
First, utilize the Hummers legal system improved for graphene oxide, detailed process is as follows:
Take 5.0g graphite and 5.0g NaNO
3under condition of ice bath, with the dense H of 230 mL
2sO
4mixing, slowly adds 15g KMnO in whipping process
4, mixture temperature must not be made more than 20 degree.System transferred in 35 DEG C of water-baths, vigorous stirring 0.5 h, forms cyan paste, and then add 230 mL deionized waters, temperature is raised to 98 DEG C.After 15 min, add 700 mL deionized waters and 50 mL 30% H
2o
2, obtain glassy yellow suspension.After system precipitation a few hours, filter, with deionized water rinsing to neutral, then 65 degree of dry 24 h of vacuum drying oven, obtain graphite oxide.
Take a certain amount of Fe (NO
3)
3 .9H
2o, is dissolved in dehydrated alcohol.At above-mentioned Fe (NO
3)
3ethanolic soln in add appropriate graphite oxide, stir after ultrasonic disperse 3h.In this dispersion liquid, add surfactant sodium dodecyl base benzene sulfonic acid sodium salt (SDBS), be stirred to it and dissolve completely.Dropwise add excessive ammonia, filter after leaving standstill 30min.After using a large amount of distilled water wash product, be placed on 60
odry 72h in C vacuum drying oven.Dried product is placed in tubular type retort furnace, under argon shield 600
oc calcines 5h, is annealed to room temperature subsequently, just can obtain FGE.
The X-ray diffraction analysis (XRD) of FGE is as Fig. 1.In Fig. 1, occurred a series of stronger diffraction peak, in 2 θ=22, ° diffraction peak that place occurs belongs to the diffraction peak of Graphene, and can calculate graphene film interlamellar spacing through bragg's formula is 1.2nm, and all the other diffraction peaks all belong to the characteristic peak of ferric oxide.
The transmission electron microscope (TEM) of FGE is analyzed as Fig. 2.In such as Fig. 2, we can find that graphenic surface has modified the nanoparticle of a lot of uniform particle sizes.
The preparation flow of high tenacity weaving bag matrix material is as follows:
By other auxiliary agent premixs such as raw material polypropylene, filling master batch, antiaging agent, pigment evenly, FGE is added evenly mixing; Be extruded as film through die head is shaping, through overcooling, become embryo silk by blade cuts, and to be stretched formation flat filament through baking oven; Flat filament, through heat setting type, shrinks when low pulling speed, and processes at low temperatures, shaping finally by winding system rolling; Circular knitting machines becomes yardage roll, is finally cut into woven bag.
Woven bag matrix material thermal weight loss (TG) curve as Fig. 3.In figure 3, namely the woven bag matrix material not adding FGE starts weightlessness at a lower temperature, namely degrade, and adding of FGE can significantly promote its thermostability.
Accompanying drawing explanation
Fig. 1 is the XRD spectra of FGE.
Fig. 2 is the TEM photo of FGE.
Fig. 3 is the TG curve of woven bag matrix material.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
By even for other auxiliary agent premixs such as raw material polypropylene, filling master batch, antiaging agent, pigment; Be extruded as film through die head is shaping, through overcooling, become embryo silk by blade cuts, and to be stretched formation flat filament through baking oven; Flat filament, through heat setting type, shrinks when low pulling speed, and processes at low temperatures, shaping finally by winding system rolling; Circular knitting machines becomes yardage roll, is finally cut into woven bag.
This sample trial production flat filament, its filament strength is 0.32 N/tex, and finished bag average intensity is 809 N/tex, and the incipient degradation temperature of woven bag matrix material is 253 DEG C, adopt ultraviolet light and aging machine under 50 DEG C of conditions after aging 4h, drop test percent of pass is 60.3%.
Embodiment 2
By other auxiliary agent premixs such as raw material polypropylene, filling master batch, antiaging agent, pigment evenly, FGE is added evenly mixing; Be extruded as film through die head is shaping, through overcooling, become embryo silk by blade cuts, and to be stretched formation flat filament through baking oven; Flat filament, through heat setting type, shrinks when low pulling speed, and processes at low temperatures, shaping finally by winding system rolling; Circular knitting machines becomes yardage roll, is finally cut into woven bag.
This sample trial production flat filament, its filament strength is 0.78 N/tex, finished bag average intensity is 1252.36 N/tex, the incipient degradation temperature of woven bag matrix material promotes greatly, reach 304 DEG C, adopt ultraviolet light and aging machine under 50 DEG C of conditions after aging 4h, drop test percent of pass has risen to 92.7%.
Above to invention has been exemplary description; should be noted that; when not departing from core of the present invention, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection scope of the present invention.
Claims (2)
1. a high-weatherability braiding polypropylene composite material, is characterized in that comprising the steps:
The preparation process of the Graphene (FGE) of chemical modification is as follows:
Take 5.0g graphite and 5.0g NaNO
3under condition of ice bath, with the dense H of 230 mL
2sO
4mixing, slowly adds 15g KMnO in whipping process
4, mixture temperature must not be made more than 20 degree, and system transferred in 35 DEG C of water-baths, vigorous stirring 0.5 h, forms cyan paste, and then add 230 mL deionized waters, temperature is raised to 98 DEG C, after 15 min, adds 700 mL deionized waters and 50 mL 30% H
2o
2, obtain glassy yellow suspension, after system precipitation a few hours, filter, with deionized water rinsing to neutral, then 65 degree of dry 24 h of vacuum drying oven, obtain graphite oxide,
Take a certain amount of Fe (NO
3)
3 .9H
2o, is dissolved in dehydrated alcohol, at above-mentioned Fe (NO
3)
3ethanolic soln in add appropriate graphite oxide, ultrasonic disperse 3h after stirring, surfactant sodium dodecyl base benzene sulfonic acid sodium salt (SDBS) is added in this dispersion liquid, be stirred to it to dissolve completely, dropwise add excessive ammonia, filter after leaving standstill 30min, after using a large amount of distilled water wash product, be placed on 60
odry 72h in C vacuum drying oven, is placed in tubular type retort furnace by dried product, under argon shield 600
oc calcines 5h, is annealed to room temperature subsequently, just can obtain FGE,
The preparation process of high-weatherability woven bag is as follows:
By other auxiliary agent premixs such as raw material polypropylene, filling master batch, antiaging agent, pigment evenly, FGE is added evenly mixing; Be extruded as film through die head is shaping, through overcooling, become embryo silk by blade cuts, and to be stretched formation flat filament through baking oven; Flat filament, through heat setting type, shrinks when low pulling speed, and processes at low temperatures, shaping finally by winding system rolling; Circular knitting machines becomes yardage roll, is finally cut into woven bag.
2. method according to claim 1, is characterized in that described graphene oxide preparation method is the Hummers method improved.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480528A (en) * | 2015-08-25 | 2017-03-08 | 昆明仙织塑业有限公司 | A kind of wear-resisting Flat Yarn Production method of Anti-aging, high-strength |
| CN108690263A (en) * | 2017-04-12 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial polyolefin and preparation method thereof |
| CN109054175A (en) * | 2018-07-13 | 2018-12-21 | 安徽义林塑业有限公司 | A kind of polypropylene packaging material containing modified graphene oxide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030774A (en) * | 1987-07-17 | 1989-02-01 | 杭州新丰塑料厂 | A kind of resistant to elevated temperatures polypropylene woven bag composition of raw materials |
| US20090148639A1 (en) * | 2005-03-14 | 2009-06-11 | Williams Bruce A | High strength ribbon-woven disposable bag for containing refuse |
| CN102941042A (en) * | 2012-10-25 | 2013-02-27 | 北京理工大学 | Graphene/metal oxide hybrid aerogel, preparation method and applications thereof |
-
2015
- 2015-05-23 CN CN201510265439.1A patent/CN104844937A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030774A (en) * | 1987-07-17 | 1989-02-01 | 杭州新丰塑料厂 | A kind of resistant to elevated temperatures polypropylene woven bag composition of raw materials |
| US20090148639A1 (en) * | 2005-03-14 | 2009-06-11 | Williams Bruce A | High strength ribbon-woven disposable bag for containing refuse |
| CN102941042A (en) * | 2012-10-25 | 2013-02-27 | 北京理工大学 | Graphene/metal oxide hybrid aerogel, preparation method and applications thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480528A (en) * | 2015-08-25 | 2017-03-08 | 昆明仙织塑业有限公司 | A kind of wear-resisting Flat Yarn Production method of Anti-aging, high-strength |
| CN108690263A (en) * | 2017-04-12 | 2018-10-23 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial polyolefin and preparation method thereof |
| CN109054175A (en) * | 2018-07-13 | 2018-12-21 | 安徽义林塑业有限公司 | A kind of polypropylene packaging material containing modified graphene oxide |
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