CN105295191A - Bamboo fiber-reinforced material and preparation method therefor - Google Patents
Bamboo fiber-reinforced material and preparation method therefor Download PDFInfo
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Abstract
The present invention relates to a bamboo fiber-reinforced material and a preparation method therefor. The bamboo fiber-reinforced material is prepared from the following components in parts by weight: 100 parts of polypropylene, 20-40 parts of bamboo fiber, 5-10 parts of a flexibilizer, 2-8 parts of a compatibilizer, 0.5-5 parts of an organic antibacterial agent, 5-20 parts of an inorganic antibacterial agent; 0.4-2.5 parts of coupling agent, 3-8 parts of a plasticizer, and 0.5-2 parts of an antioxidant. The bamboo fiber-reinforced material provided by the present invention uses the bamboo fiber that is high in an aspect ratio and has a certain antibacterial action as a reinforcing material. The bamboo fiber is matched with the inorganic antibacterial agent, the organic antibacterial agent, the plasticizer and other auxiliaries, so that the mechanical property of the bamboo fiber-reinforced material is improved, and simultaneously the material has a relatively good antibacterial property. The bamboo fiber-reinforced material provided by the present invention solves the problem that bamboo fiber-reinforced plastic is easily eroded and degraded by bacteria during long-term use, and the prepared bamboo fiber-reinforced material is relatively high in mechanical strength and antibacterial property.
Description
Technical field
The invention belongs to field of compound material, be specifically related to a kind of bamboo fiber reinforcement material and preparation method thereof.
Background technology
Wood-plastic material can adopt timber to replace partly plastic, thus has saved valuable petroleum resources.But for Wood-plastic material, the fibre strength of wood fibre is lower, usually when the add-on of wood fibre increases, the mechanical property of Wood-plastic material can be caused sharply to decline.Bamboo fibers is a kind of cellulosic fibre extracted from the bamboo of self-sow, and relatively common lignocellulose, has better tensile strength.
Existing Wood-plastic material, comprises bamboo fiber reinforced plastic material ubiquity lignocellulose or bamboo fibers when long-time use, easily suffers the corrosion degradation of bacterium, thus have influence on the overall mechanics performance and used life of material.Chinese patent 103450534A discloses a kind of bamboo fiber reinforcement polythene material, comprises with high-density polyethylene resin, ldpe resin, bamboo fibers, carbon black, oxidation inhibitor, softening agent, lubricant, compatilizer.This bamboo fiber reinforcement polythene material has that wear resistance is good, ageing-resistant, shock resistance is strong, but equally also there is bamboo fibers easily by defect that bacterial corrosion is degraded.
And in anti-biotic material, although silver ion antimicrobial agent has good antibacterial effect, price is higher, the antimicrobial efficiency in use procedure is relatively low.And argent is distributed to after in plastic material, the later stage is difficult to reclaim, larger to the wasting of resources.If provide a kind of excellent in mechanical performance, the bamboo fiber reinforcement material that antibacterial ability is strong, reaches mechanical strength high, good anti-bacterial effect, the requirement that anti-microbial effect is lasting simultaneously, will improve the use range of bamboo fiber reinforcement material.
Summary of the invention
For solving the above-mentioned technical problem existed in prior art, the object of this invention is to provide a kind of bamboo fiber reinforcement material and preparation method thereof, it is good that this bamboo fiber reinforcement material has mechanical property, antibacterial ability is strong, antibacterial time is long, good weatherability, the advantage of long service life.
Technical scheme of the present invention is as follows:
A kind of bamboo fiber reinforcement material, be made up of the component comprising following weight part:
Preferably, the diameter of described bamboo fibers is 200um ~ 1000um, and length-to-diameter ratio is 1:(10 ~ 100).
Preferably, described toughner is ethylene-propylene rubber(EPR) or terpolymer EP rubber; Or described compatilizer is maleic anhydride inoculated polypropylene.
Preferably, described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1 ~ 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1 ~ 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 ~ 80 DEG C and stir 15 ~ 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 1 ~ 3 part, potassium sorbate 0.2 ~ 0.8 part, mix obtained described antiseptic-germicide.
Preferably, described chitosan is 2-HACC.
The composite particles that 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer and benzyldimethyldodecylammonium ammonium chloride obtain is both containing polymer segment, again containing sterilization group, there is stable performance, non-volatile, the significant advantage of sterilization effect, the relative molecular mass of polymer segment is larger simultaneously, and antibacterial effect is better.
Preferably, described inorganic antiseptic is that photocatalyst-type inorganic antiseptic and flaky inorganic filler are by weight being 1:(1 ~ 3) mixture.
Preferably, described photocatalyst-type inorganic antiseptic be selected from zinc oxide, silicon-dioxide or anatase titanium dioxide one or more;
Described flaky inorganic filler be selected from sheet polynite, sheet silicate, flake graphite one or more.
Zinc oxide, silicon-dioxide and anatase titanium dioxide belong to photocatalyst-type inorganic antiseptic, the hole-electron pair of high activity can be produced after illumination, and then generate the OH free radical of strong oxidizing property at product surface, thus kill the bacterium be in contact with it at short notice.
The mixture of photocatalyst-type inorganic antiseptic and flaky inorganic filler is adopted in inorganic antiseptic, after flaky inorganic filler is dispersed in the composite, certain iris action can be played, make the antimicrobial component in matrix material be discharged into the surface of bamboo fiber reinforcement material slowly, thus extend effective antibacterial time of bamboo fiber reinforcement material.
Preferably, described coupling agent be selected from γ-glycidyl ether oxygen propyl trimethoxy silicane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, 3-aminopropyl trimethoxysilane one or more;
Or described softening agent is selected from cedar(wood)oil, one or more in Viscotrol C, wasabi essential oil.
Cedar(wood)oil, Viscotrol C, wasabi essential oil, as natural matter, itself have certain anti-microbial effect, can also play the effect of plasticising in the process of composite processing simultaneously.
Preferably; described oxidation inhibitor is selected from (N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine), (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester), (1; 3; 5-tri-(the 4-tertiary butyl-3-hydroxyl-2; 6-dimethyl benzyl)-1; 3,5-triazine-2,4; 6-(1H; 3H, 5H)-triketone) or (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester) in one or more.
A preparation method for above-mentioned bamboo fiber reinforcement material, comprises the following steps:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 20 ~ 40 parts; Toughner 5 ~ 10 parts; Compatilizer 2 ~ 8 parts; Organic antibacterial agent 0.5 ~ 5 part; Inorganic antiseptic 5 ~ 20 parts; Coupling agent 0.4 ~ 2.5 part; 3 ~ 8 parts, softening agent; 0.5 ~ 2 part, oxidation inhibitor;
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, cooling obtains described bamboo fiber reinforcement material.
Preferably, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then with press, bamboo chip is rolled, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers.
Adopt press first to roll bamboo fibers, and the fracture of bamboo fibers at length direction can be reduced along the transverse grinding of bamboo fibers, improve the mechanical strength keeping bamboo fibers.Simultaneously bamboo fibers itself has the effect of certain antibacterial, antibacterial, sterilization.Because containing " bamboo a kind of jade " inside bamboo, there is natural antibacterial, anti-mite, deodorization, insect protected function.Bamboo fibers serves simultaneously and strengthens and antibacterial effect in the present invention.
Preferably, described bamboo fibers, before use through drying and processing, makes water ratio lower than 0.05%.
Preferably, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, and screw speed is 200 ~ 250R/min.
First inorganic antiseptic is mixed with coupling agent; the coupling efficiency of coupling agent can be improved preferably; spout after being mixed with softening agent by organic antibacterial agent in the middle part of extruder screw adds forcing machine; antiseptic-germicide can be protected; its heated time is shortened, reduces the degraded in the course of processing.
Compared to the prior art, beneficial effect of the present invention is:
(1) bamboo fiber reinforcement material of the present invention, adopt length-to-diameter ratio higher, there is the bamboo fibers of certain anti-microbial effect as strongthener, coordinate inorganic antiseptic and organic antibacterial agent, softening agent and other auxiliary agents, while the mechanical property of bamboo fiber reinforcement material is got a promotion, also there is good anti-microbial property.The present invention not only solves bamboo fiber reinforced plastic is easily corroded degraded in life-time service process problem by bacterium, and obtained bamboo fiber reinforcement material, there is higher mechanical strength and anti-microbial property can be applied to the places such as aseptic production department, kindergarten, hospital.
(2) mixture of photocatalyst-type inorganic antiseptic and flaky inorganic filler is adopted in the inorganic antiseptic in bamboo fiber reinforcement material of the present invention, after flaky inorganic filler is dispersed in the composite, certain iris action can be played, make the antimicrobial component in matrix material be discharged into the surface of bamboo fiber reinforcement material slowly, thus extend effective antibacterial time of bamboo fiber reinforcement material.
(3) organic antibacterial agent of the present invention is polymer antibacterial agent, and the existence of polymer segment not only improves the consistency of antiseptic-germicide and polystyrene matrix, and the existence of polymer segment also improves the sterilizing ability of antiseptic-germicide and the time of effective sterilization.
(4), in bamboo fiber reinforcement material of the present invention, do not adopt the antiseptic-germicide of silver ions series, significantly reduce raw materials cost.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, and in embodiment except specified otherwise, content is weight part.
Embodiment 1
A kind of bamboo fiber reinforcement material, obtains in accordance with the following methods:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 20 parts; Toughner 5 parts; Compatilizer 2 parts; Organic antibacterial agent 0.5 part; Inorganic antiseptic 5 parts; Coupling agent 0.4 part; 3 parts, softening agent; 0.5 part, oxidation inhibitor;
Wherein, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then rolled by bamboo chip with press, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers;
The diameter of obtained bamboo fibers is 200um ~ 500um, and length-to-diameter ratio is 1:(10 ~ 50), have passed through drying and processing before use, water ratio is lower than 0.05%;
Described toughner is ethylene-propylene rubber(EPR); Described compatilizer is maleic anhydride inoculated polypropylene;
Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 DEG C and stir 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, 2-HACC 1 part, potassium sorbate 0.2 part, mix obtained described antiseptic-germicide;
Described inorganic antiseptic is photocatalyst-type inorganic antiseptic zinc oxide and the polynite of flaky inorganic filler sheet is the mixture of 1:1 by weight; Described coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane; Described softening agent is cedar(wood)oil; Described oxidation inhibitor is (N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine);
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, screw speed is 200R/min, and cooling obtains described bamboo fiber reinforcement material.
Embodiment 2
A kind of bamboo fiber reinforcement material, obtains in accordance with the following methods:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 40 parts; Toughner 10 parts; Compatilizer 8 parts; Organic antibacterial agent 5 parts; Inorganic antiseptic 20 parts; Coupling agent 2.5 parts; 8 parts, softening agent; 2 parts, oxidation inhibitor;
Wherein, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then rolled by bamboo chip with press, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers;
The diameter of obtained bamboo fibers is 200um ~ 500um, and length-to-diameter ratio is 1:50 ~ 100, have passed through drying and processing before use, and water ratio is lower than 0.05%;
Described toughner is terpolymer EP rubber; Described compatilizer is maleic anhydride inoculated polypropylene;
Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 80 DEG C and stir 20min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, 2-HACC 3 parts, potassium sorbate 0.8 part, mix obtained described antiseptic-germicide;
Described inorganic antiseptic is photocatalyst-type inorganic antiseptic anatase titanium dioxide and flaky inorganic filler flake graphite is the mixture of 1:3 by weight; Described coupling agent is N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane; Described softening agent is Viscotrol C; Described oxidation inhibitor is (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester);
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, screw speed is 250R/min, and cooling obtains described bamboo fiber reinforcement material.
Embodiment 3
A kind of bamboo fiber reinforcement material, obtains in accordance with the following methods:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 30 parts; Toughner 8 parts; Compatilizer 5 parts; Organic antibacterial agent 3 parts; Inorganic antiseptic 12 parts; Coupling agent 2.2 parts; 5 parts, softening agent; 1.5 parts, oxidation inhibitor;
Wherein, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then rolled by bamboo chip with press, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers;
The diameter of obtained bamboo fibers is 500um ~ 1000um, and length-to-diameter ratio is 1:50 ~ 100, have passed through drying and processing before use, and water ratio is lower than 0.05%;
Described toughner is ethylene-propylene rubber(EPR); Described compatilizer is maleic anhydride inoculated polypropylene;
Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 3g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 3g benzyldimethyldodecylammonium ammonium chloride, be heated to 60 DEG C and stir 20min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, 2-HACC 2 parts, potassium sorbate 0.6 part, mix obtained described antiseptic-germicide;
Described inorganic antiseptic is photocatalyst-type inorganic antiseptic silicon-dioxide and flaky inorganic filler sheet silicate is the mixture of 1:2 by weight; Described coupling agent is 3-aminopropyl trimethoxysilane; Described softening agent is cedar(wood)oil; Described oxidation inhibitor is (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester);
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, screw speed is 220R/min, and cooling obtains described bamboo fiber reinforcement material.
Embodiment 4
A kind of bamboo fiber reinforcement material, obtains in accordance with the following methods:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 25 parts; Toughner 6 parts; Compatilizer 4 parts; Organic antibacterial agent 2 parts; Inorganic antiseptic 8 parts; Coupling agent 1.0 parts; 5 parts, softening agent; 1.0 parts, oxidation inhibitor;
Wherein, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then rolled by bamboo chip with press, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers;
The diameter of obtained bamboo fibers is 200um ~ 300um, and length-to-diameter ratio is 1:10 ~ 50, have passed through drying and processing before use, and water ratio is lower than 0.05%;
Described toughner is terpolymer EP rubber; Described compatilizer is maleic anhydride inoculated polypropylene;
Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 2g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 3g benzyldimethyldodecylammonium ammonium chloride, be heated to 60 DEG C and stir 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, 2-HACC 2 parts, potassium sorbate 0.6 part, mix obtained described antiseptic-germicide;
Described inorganic antiseptic is photocatalyst-type inorganic antiseptic anatase titanium dioxide and flaky inorganic filler flake graphite is the mixture of 1:2.5 by weight; Described coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane; Described softening agent is cedar(wood)oil; Described oxidation inhibitor is (N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine);
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, screw speed is 250R/min, and cooling obtains described bamboo fiber reinforcement material.
Embodiment 5
A kind of bamboo fiber reinforcement material, obtains in accordance with the following methods:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 35 parts; Toughner 8 parts; Compatilizer 6 parts; Organic antibacterial agent 3 parts; Inorganic antiseptic 15 parts; Coupling agent 2.2 parts; 6 parts, softening agent; 1.5 parts, oxidation inhibitor;
Wherein, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then rolled by bamboo chip with press, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers;
The diameter of obtained bamboo fibers is 200um ~ 500um, and length-to-diameter ratio is 1:50 ~ 100, have passed through drying and processing before use, and water ratio is lower than 0.05%;
Described toughner is ethylene-propylene rubber(EPR); Described compatilizer is maleic anhydride inoculated polypropylene;
Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 4g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 4g benzyldimethyldodecylammonium ammonium chloride, be heated to 80 DEG C and stir 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, 2-HACC 3 parts, potassium sorbate 0.8 part, mix obtained described antiseptic-germicide;
Described inorganic antiseptic is photocatalyst-type inorganic antiseptic zinc oxide, with the polynite of flaky inorganic filler sheet, by weight being the mixture of 1:1; Described coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane; Described softening agent is cedar(wood)oil; Described oxidation inhibitor is (N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine);
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, the extrusion temperature of described forcing machine is 180 ~ 210 DEG C, screw speed is 200R/min, and cooling obtains described bamboo fiber reinforcement material.
Carry out performance test to bamboo fiber reinforcement material obtained in embodiment, test result is in table 1.
Table 1
In the present invention, pp material is oil of SPC M800E food-grade polypropylene, and the shock strength of virgin material is 35J/M, and after antibacterial modified, the shock strength of obtained bamboo fiber reinforcement material is significantly improved, and has excellent anti-microbial property simultaneously.
The above embodiment is preferred embodiments of the present invention, is not limit the scope of the present invention, therefore all equivalences done according to the principle described in the present patent application the scope of the claims change or modify, all should in patent claim of the present invention.
Claims (10)
1. a bamboo fiber reinforcement material, is characterized in that, is made up of the component comprising following weight part:
2. a kind of bamboo fiber reinforcement material according to claim 1, is characterized in that, the diameter of described bamboo fibers is 200um ~ 1000um, and length-to-diameter ratio is 1:(10 ~ 100).
3. a kind of bamboo fiber reinforcement material according to claim 1, is characterized in that, described toughner is ethylene-propylene rubber(EPR) or terpolymer EP rubber; Or described compatilizer is maleic anhydride inoculated polypropylene.
4. a kind of bamboo fiber reinforcement material according to claim 1, it is characterized in that, described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1 ~ 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1 ~ 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 ~ 80 DEG C and stir 15 ~ 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 1 ~ 3 part, potassium sorbate 0.2 ~ 0.8 part, mix obtained described antiseptic-germicide; Preferably, described chitosan is 2-HACC.
5. a kind of bamboo fiber reinforcement material according to claim 1, is characterized in that, described inorganic antiseptic is that photocatalyst-type inorganic antiseptic and flaky inorganic filler are by weight being 1:(1 ~ 3) mixture.
6. a kind of bamboo fiber reinforcement material according to claim 5, is characterized in that, described photocatalyst-type inorganic antiseptic be selected from zinc oxide, silicon-dioxide or anatase titanium dioxide one or more;
Described flaky inorganic filler be selected from sheet polynite, sheet silicate, flake graphite one or more.
7. a kind of bamboo fiber reinforcement material according to claim 1, it is characterized in that, described coupling agent be selected from γ-glycidyl ether oxygen propyl trimethoxy silicane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, 3-aminopropyl trimethoxysilane one or more;
Or described softening agent is selected from cedar(wood)oil, one or more in Viscotrol C, wasabi essential oil.
8. a kind of bamboo fiber reinforcement material according to claim 1; it is characterized in that; described oxidation inhibitor is selected from (N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine), (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester), (1; 3; 5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3; 5-triazine-2; 4,6-(1H, 3H; 5H)-triketone) or (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester) in one or more.
9., as a preparation method for the bamboo fiber reinforcement material as described in arbitrary in claim 1 ~ 8, it is characterized in that, comprise the following steps:
(1) polypropylene 100 parts is weighed by weight; Bamboo fibers 20 ~ 40 parts; Toughner 5 ~ 10 parts; Compatilizer 2 ~ 8 parts; Organic antibacterial agent 0.5 ~ 5 part; Inorganic antiseptic 5 ~ 20 parts; Coupling agent 0.4 ~ 2.5 part; 3 ~ 8 parts, softening agent; 0.5 ~ 2 part, oxidation inhibitor;
(2) inorganic antiseptic is first mixed the bamboo fibers adding polypropylene, compatilizer, toughner, oxidation inhibitor and 50% weight part again with coupling agent, mix, add in the charging opening of cross-head, by organic antibacterial agent and softening agent, the spout mixed together with the bamboo fibers of other 50% weight part in the middle part of extruder screw adds forcing machine, melt blending, extrude pelletizing, cooling obtains described bamboo fiber reinforcement material.
10. the preparation method of bamboo fiber reinforcement material according to claim 9, it is characterized in that, described bamboo fibers is obtained by following methods: first by the direction of growth cut growth strip bamboo chip of bamboo along bamboo, then with press, bamboo chip is rolled, and along the transverse grinding of bamboo fibers, bamboo fibers is made to launch to be uniformly dispersed, through mesh screen choosing of sieving after super-dry, obtained described bamboo fibers.
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2014
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