CN103981591A - Copper-modified antibacterial polyester fiber and preparation method thereof - Google Patents
Copper-modified antibacterial polyester fiber and preparation method thereof Download PDFInfo
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- CN103981591A CN103981591A CN201410212281.7A CN201410212281A CN103981591A CN 103981591 A CN103981591 A CN 103981591A CN 201410212281 A CN201410212281 A CN 201410212281A CN 103981591 A CN103981591 A CN 103981591A
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Abstract
The invention discloses a copper-modified antibacterial polyester fiber and a preparation method thereof. The polyester fiber contains 1-30wt% of copper particles. The preparation method comprises the following steps: (1) mixing metal copper powder in benzotriazole solution to steep for 20-90min after smashing the metal copper powder, and then drying the steeped copper particles to obtain modified copper particles with anti-oxidation modified surface; (2) adding the modified copper particles into high-viscosity polyester chips, and melting to pellet to obtain copper-modified polyester master batch; (3) mixing the copper-modified polyester master batch with the polyester chips, adding a dispersing agent and a lubricating agent to uniformly mix, and drying in a vacuum state to obtain a blend spinning raw material; and (4) carrying out melt spinning on the blend spinning raw material with the melting temperature of 270-295 DEG C to prepare the copper-modified antibacterial polyester fiber. Compared with the prior art, the preparation method is relatively easy to popularize and apply, relatively low in production cost and simple in production process.
Description
Technical field
The present invention relates to the preparing technical field of functional polyester fiber, be specifically related to a kind of technology of preparing of antibacterial polyester fibre of copper modification.
Background technology
In daily life, various textiless are the ground of the good existence of microorganism, are also the important propagating sources of disease.Along with improving constantly of industrial boom and living standards of the people, antibacterial problem more and more causes people's great attention.Anti-bacterial fibre has improved the surcharge of textiles widely, and in develop high-tech textiles, the textiles that exploitation has antibacterial functions is also one of important development direction.
The exploitation of existing antibacterial polyester fibers, adopt added nano-metal-oxide class antiseptic more, makes through co-blended spinning.As the number of patent application patent document that is 200910152448.4 discloses in terephthalic acid 1,2-propylene glycol ester synthetic interpolation Nano titanium dioxide (TiO2) 3～5% and cupric oxide (CuO) 3～6% as antiseptic.Number of patent application is that the patent document of 200910196831.X discloses the complex antimicrobials and the polyester blend that adopt nano zine oxide, titanium dioxide, makes antibacterial polyester fibre.Number of patent application is that 200910152476.6 patent document discloses interpolation Nano titanium dioxide 3～5% and silver oxide 3～6% in polyester synthetic and, as antiseptic, obtains antibacterial degradable polyester fibre.Available technology adopting nano-metal-oxide is during as antiseptic, although nano-metal-oxide particle has bigger serface and excellent antibacterial effect, due to the relation in size, dispersion effect is poor, cause the antiseptic dispersion in anti-bacterial fibre inhomogeneous, thereby affect antibacterial effect.Therefore, how metal oxide antiseptic is dispersed in each base material effectively, be the problem of puzzlement anti-bacterial fibre suitability for industrialized production always.
And while utilizing metal as preparation of antimicrobial fiber or antimicrobial yarn in prior art, on macromolecular fibre surface, to plate metal film coating, as metal and metal mixture films thereof such as silver, platinum, copper, the fiber that plates metallic film is twisted antibacterial yarn with other fiber again.Metallic film coating production process is numerous and diverse, and cost is high, and meanwhile, metallic particles can detract gradually because of the generation of clean, wiping and collision, causes antibiotic effect to reduce gradually, the term of validity of shortening goods anti-microbial property.Also having a kind of method is in macromolecular fibre, to sneak into part metals fiber, as metal fibres such as silver, copper.Because metal fibre price is high, make its cost high, application is also very limited.
Summary of the invention
First technical problem to be solved by this invention is: for the deficiency of prior art existence, provide the antibacterial polyester fibre of the copper particle modification that a kind of anti-microbial property is good, production cost is low.
Second technical problem to be solved by this invention is: the deficiency existing for prior art, a kind of preparation method of antibacterial polyester fibre of copper particle modification is provided, and the method has overcome difficulties in dispersion and use metal coating and the high technical problem of metal fibre cost while using metal oxide as antiseptic in prior art.
For solving above-mentioned first technical problem, technical scheme of the present invention is:
An antibacterial polyester fibre for copper modification, contains the copper particle of 1～30wt% in described polyester fiber, the antibacterial effect of described polyester fiber is: white is read coccus >=99%, Escherichia coli >=99%, staphylococcus aureus >=99%.
Preferably, the median particle diameter D50≤0.5 μ m of described copper particle.
As further preferred, the maximum gauge of described copper particle is 0.9 μ m.
For solving above-mentioned second technical problem, technical scheme of the present invention is:
A preparation method for the antibacterial polyester fibre of copper modification, comprises the following steps:
(1) the anti-oxidation modification of copper particle: metallic copper is pulverized to the copper particle for median particle diameter D50≤0.5 μ m, sneak into concentration and be in the BTA solution of 0.1～1.0g/l and mix, and soak 20～90min, then the copper particle after soaking is dried at 80～150 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification.
(2) prepare copper modified poly ester master batch: in polyester slice with high viscosity, the Modified Cu particle that adds step (1) to obtain, the addition of described Modified Cu particle is 20～30wt% of described polyester slice, and melt pelletization obtains copper modified poly ester master batch.
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice are according to the weight ratio of 5～100:95～0, add again dispersant and lubricant to be uniformly mixed, under vacuum state, more than dry 12h, obtain blend spinning raw material.
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 270～295 DEG C of melt spinnings in melt temperature, makes the antibacterial polyester fibre of copper modification.
Preferably, in the mixed solution in step (1), the weight ratio of BTA and copper particle is 0.25～1:1.
Preferably, the maximum particle diameter of described copper particle is no more than 0.9 μ m.
Preferably, in step (2), the viscosity >=0.8mpas of described polyester slice with high viscosity.
Preferably, in step (3), described dispersant is calgon, and the addition of described calgon is 0.2～0.5% of copper modified poly ester master batch and polyester slice mixed weight; Described lubricant is odium stearate, and the addition of described odium stearate is 0.1～0.3% of copper modified poly ester master batch and polyester slice mixed weight.
Wherein, the antibacterial polyester fibre of described copper modification is the short silk of polyester fiber or polyester filaments.
Owing to having adopted technique scheme, the invention has the beneficial effects as follows:
Antibacterial polyester fibre of the present invention adopts copper minuteness particle as antiseptic, prepare the antibacterial polyester fibre of copper modification with polyester slice blend, the reunion that while having overcome in prior art using metal oxide as antiseptic, nanometer metal oxide particle brings, the problems such as difficulties in dispersion, and in metallic film coating technology and macromolecular fibre, the cost of pick-up metal fibre technology is high, the drawback problems such as production process is numerous and diverse, the anti-microbial property of the anti-bacterial fibre preparing has reached: white is read coccus >=99%, Escherichia coli >=99%, the antibacterial effect of staphylococcus aureus >=99%, and there is promotion microcirculation function.
The present invention compared to existing technology, be not only easier to apply, and production cost is lower, and production technology is simple.
Detailed description of the invention
Specifically set forth the present invention below in conjunction with specific embodiment.
Embodiment 1
An antibacterial polyester fibre for copper modification, contains the copper particle of 5wt% in described polyester fiber, the antibacterial effect of described polyester fiber is: white is read coccus >=99.1%, Escherichia coli >=99%, staphylococcus aureus >=99.5%.
Embodiment 2
A kind of antibacterial polyester fibre of copper modification, in described polyester fiber, contain the copper particle of 10wt%, the median particle diameter D50 of described copper particle is 0.5 μ m, and the antibacterial effect of described polyester fiber is: white is read coccus >=99.2%, Escherichia coli >=99.3%, staphylococcus aureus >=99.2%.
Embodiment 3
A kind of antibacterial polyester fibre of copper modification, in described polyester fiber, contain the copper particle of 18wt%, the median particle diameter D50 of described copper particle is 0.3 μ m, the maximum gauge of described copper particle is 0.6 μ m, the antibacterial effect of described polyester fiber is: white is read coccus >=99.3%, Escherichia coli >=99.35%, staphylococcus aureus >=99.41%.
Embodiment 4
A kind of antibacterial polyester fibre of copper modification, in described polyester fiber, contain the copper particle of 26wt%, the median particle diameter D50 of described copper particle is 0.45 μ m, the maximum gauge of described copper particle is 0.9 μ m, the antibacterial effect of described polyester fiber is: white is read coccus >=99.43%, Escherichia coli >=99.55%, staphylococcus aureus >=99.56%.
Embodiment 5
A preparation method for the antibacterial polyester fibre of copper modification, comprises the following steps:
(1) the anti-oxidation modification of copper particle: by metallic copper pulverize for median particle diameter D50 be the copper particle of 0.5 μ m, sneak into concentration and be in the BTA solution of 0.5g/l and mix, and soak 80min, then the copper particle after soaking is dried at 100 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification.
(2) prepare copper modified poly ester master batch: in polyester slice with high viscosity, the Modified Cu particle that adds step (1) to obtain, the 22wt% that the addition of described Modified Cu particle is described polyester slice, melt pelletization obtains copper modified poly ester master batch.
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice be according to the weight ratio of 50:50, then add dispersant and lubricant to be uniformly mixed, under vacuum state, more than dry 12h, obtain blend spinning raw material.
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 275 DEG C of melt spinnings in melt temperature, cuts off and the cooling antibacterial polyester fibre staple fibre that makes copper modification.The antibacterial effect of the polyester fiber preparing is: white is read coccus >=99.53%, Escherichia coli >=99.45%, staphylococcus aureus >=99.51%.
Embodiment 6
A preparation method for the antibacterial polyester fibre of copper modification, comprises the following steps:
(1) the anti-oxidation modification of copper particle: by metallic copper pulverize for median particle diameter D50 be the copper particle of 0.45 μ m, sneak into concentration and be in the BTA solution of 0.6g/l and mix, in mixed solution, the weight ratio of BTA and copper particle is 0.35:1, soak 60min, then the copper particle after soaking is dried at 120 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification.
(2) prepare copper modified poly ester master batch: in the polyester slice with high viscosity of viscosity 0.8mpas, the Modified Cu particle that adds step (1) to obtain, the addition of described Modified Cu particle is the 25wt% of described polyester slice, and melt pelletization obtains copper modified poly ester master batch.
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice are according to the weight ratio of 30:70, add again sodium hexametaphosphate dispersant and lubricant stearic acid sodium, the addition of calgon is 0.3% of copper modified poly ester master batch and polyester slice mixed weight, the addition of odium stearate is 0.15% of copper modified poly ester master batch and polyester slice mixed weight, be uniformly mixed, under vacuum state, dry 48h, obtains blend spinning raw material.
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 270～295 DEG C of melt spinnings in melt temperature, makes the antibacterial polyester fibre long filament of copper modification.The antibacterial effect of the polyester fiber preparing is: white is read coccus >=99.42%, Escherichia coli >=99.38%, staphylococcus aureus >=99.53%.
Embodiment 7
A preparation method for the antibacterial polyester fibre of copper modification, comprises the following steps:
(1) the anti-oxidation modification of copper particle: by metallic copper pulverize for median particle diameter D50 be the copper particle of 0.3 μ m, the maximum particle diameter 0.8 μ m of copper particle, sneak into concentration and be in the BTA solution of 1.0g/l and mix, BTA solution is the ethanolic solution of BTA, in mixed solution, the weight ratio of BTA and copper particle is 0.85:1, soak 25min, then the copper particle after soaking is dried at 80～100 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification.
(2) prepare copper modified poly ester master batch: in the polyester slice with high viscosity of viscosity 0.8mpas, the Modified Cu particle that adds step (1) to obtain, the addition of described Modified Cu particle is the 28wt% of described polyester slice, and melt pelletization obtains copper modified poly ester master batch.
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice are according to the weight ratio of 20:80, add again sodium hexametaphosphate dispersant and lubricant stearic acid sodium, the addition of calgon is 0.45% of copper modified poly ester master batch and polyester slice mixed weight, the addition of odium stearate is 0.25% of copper modified poly ester master batch and polyester slice mixed weight, be uniformly mixed, under vacuum state, dry 32h, obtains blend spinning raw material.
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 280～295 DEG C of melt spinnings in melt temperature, cut-out granulation makes the antibacterial polyester fibre staple fibre of copper modification.The antibacterial effect of the polyester fiber preparing is: white is read coccus >=99.45%, Escherichia coli >=99.47%, staphylococcus aureus >=99.42%.
Embodiment 8
A preparation method for the antibacterial polyester fibre of copper modification, comprises the following steps:
(1) the anti-oxidation modification of copper particle: by metallic copper pulverize for median particle diameter D50 be the copper particle of 0.4 μ m, the maximum particle diameter 0.7 μ m of copper particle, sneak into concentration and be in the BTA solution of 0.5g/l and mix, in mixed solution, the weight ratio of BTA and copper particle is 0.5:1, soak 50min, then the copper particle after soaking is dried at 120～130 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification.
(2) prepare copper modified poly ester master batch: in the polyester slice with high viscosity of viscosity 0.8mpas, the Modified Cu particle that adds step (1) to obtain, the addition of described Modified Cu particle is the 30wt% of described polyester slice, and melt pelletization obtains copper modified poly ester master batch.
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice are according to the weight ratio of 10:90, add again sodium hexametaphosphate dispersant and lubricant stearic acid sodium, the addition of calgon is 0.25% of copper modified poly ester master batch and polyester slice mixed weight, the addition of odium stearate is 0.15% of copper modified poly ester master batch and polyester slice mixed weight, be uniformly mixed, under vacuum state, dry 24h, obtains blend spinning raw material.
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 275～285 DEG C of melt spinnings in melt temperature, cut-out granulation makes the antibacterial polyester fibre staple fibre of copper modification.The antibacterial effect of the polyester fiber preparing is: white is read coccus >=99.19%, Escherichia coli >=99.25%, staphylococcus aureus >=99.36%.
Claims (9)
1. an antibacterial polyester fibre for copper modification, is characterized in that the copper particle that contains 1～30wt% in described polyester fiber, and the antibacterial effect of described polyester fiber is: white is read coccus >=99%, Escherichia coli >=99%, staphylococcus aureus >=99%.
2. the antibacterial polyester fibre of a kind of copper modification as claimed in claim 1, is characterized in that: the median particle diameter D50≤0.5 μ m of described copper particle.
3. the antibacterial polyester fibre of a kind of copper modification as claimed in claim 2, is characterized in that: the maximum gauge of described copper particle is no more than 0.9 μ m.
4. a preparation method for the antibacterial polyester fibre of copper modification, is characterized in that comprising the following steps:
(1) the anti-oxidation modification of copper particle: metallic copper is pulverized to the copper particle for median particle diameter D50≤0.5 μ m, sneak into concentration and be in the BTA solution of 0.1～1.0g/l and mix, and soak 20～90min, then the copper particle after soaking is dried at 80～150 DEG C, obtains the Modified Cu particle of surface anti-oxidation modification;
(2) prepare copper modified poly ester master batch: in polyester slice with high viscosity, the Modified Cu particle that adds step (1) to obtain, the addition of described Modified Cu particle is 20～30wt% of described polyester slice, and melt pelletization obtains copper modified poly ester master batch;
(3) combination drying: the copper modified poly ester master batch that step (2) is obtained and polyester slice are according to the weight ratio of 5～100:95～0, add again dispersant and lubricant to be uniformly mixed, under vacuum state, more than dry 12h, obtain blend spinning raw material;
(4) melt spinning: by described blend spinning raw material, entering double screw extruder, is 270～295 DEG C of melt spinnings in melt temperature, makes the antibacterial polyester fibre of copper modification.
5. the preparation method of the antibacterial polyester fibre of a kind of copper modification as claimed in claim 4, is characterized in that: in the mixed solution in step (1), the weight ratio of BTA and copper particle is 0.25～1:1.
6. the preparation method of the antibacterial polyester fibre of a kind of copper modification as claimed in claim 4, is characterized in that: in step (1), the maximum particle diameter of described copper particle is no more than 0.9 μ m.
7. the preparation method of the antibacterial polyester fibre of a kind of copper modification as claimed in claim 4, is characterized in that: in step (2), and the viscosity >=0.8mpas of described polyester slice with high viscosity.
8. the preparation method of the antibacterial polyester fibre of a kind of copper modification as claimed in claim 4, it is characterized in that: in step (3), described dispersant is calgon, and the addition of described calgon is 0.2～0.5% of copper modified poly ester master batch and polyester slice mixed weight; Described lubricant is odium stearate, and the addition of described odium stearate is 0.1～0.3% of copper modified poly ester master batch and polyester slice mixed weight.
9. the preparation method of the antibacterial polyester fibre of a kind of copper modification as described in claim as arbitrary in claim 4 to 8, is characterized in that: the antibacterial polyester fibre of described copper modification is the short silk of polyester fiber or polyester filaments.
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