CN104788977A - Photocatalytic antibacterial biomass wood-plastic composite material and preparation method thereof - Google Patents
Photocatalytic antibacterial biomass wood-plastic composite material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a photocatalytic antibacterial biomass wood-plastic composite material and a preparation method thereof. The photocatalytic antibacterial biomass wood-plastic composite material mainly comprises the following constituents in parts by weight: 25 to 75 parts of thermoplastic plastic, 15 to 75 parts of wood powder, 5 to 20 parts of an inorganic filler, 1 to 10 parts of a modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent, 1 to 5 parts of a fire retardant, 1 to 10 parts of a lubricating agent, and 1 to 8 parts of a coupling agent. The composite material takes the modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent, the (waste) thermoplastic plastic, the (waste) wood powder and other auxiliaries as raw materials, so that the harm of mildew and rot and fungal infection of the wood-plastic composite material and termite and other insects is avoided, the environment is protected, and the resource waste is reduced. Taking the modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent as powder, the composite material has the characteristics that antibacterial and bactericidal effect is rapid and efficient, the composite material is safe and nontoxic, does not produce drug-resistance bacteria, is thorough, durable and stable, and has broad-spectrum antibacterial property, and the like, and further has the characteristics of double long effectiveness of photocatalytic antibacterial and antifungal effect of TiO2 and antibacterial and bactericidal effect of Ag+ and Cu2+.
Description
Technical field
The present invention relates to a kind of matrix material and preparation method thereof, especially a kind of photocatalysis antibacterial biomass wood plastic composite and preparation method thereof.
Background technology
Biomass (wood is moulded) matrix material refers to woody, standing grain this and the renewable biomass resource such as vine and Forest products waste as starting material, by the contour technique means of physics, chemistry and physiotechnology, processing and manufacturing is excellent performance, environmental friendliness, numerous in variety, added value is high, of many uses and can substitute petrochemical industry, Mineral resources product, has a class type material of modern science and technology feature.This material has five large advantage, that is: diversification of feedstocks; Preparation plasticization; Product environmental protection; Application economization and the low carbonization of regeneration.The various advantages that biomass (wood is moulded) matrix material has are widely used in the field such as building, finishing, furniture, traffic, logistics, packaging.
Current wood is moulded anti-biotic material and is extensively adopted quaternary ammonium salt antimicrobial activity and oxazolidinones antimicrobial activity, such as, a kind of high-performance antibiosis wood plastic composite material and preparation method thereof is disclosed in Chinese patent 201010118850.3, ethanol solution containing quaternary ammonium salt active antibacterial monomer and oxazolidinones active antibacterial monomer is sprayed at plant fibre surface by it, carry out surface graft modification plant fiber powder through stirring, drying, nitrogenize and Co60 radiation, then modified plant fibers powder and plastic blend are obtained matrix material.Above-mentioned antiseptic-germicide is widely adopted with its slowly-releasing, long-acting, low toxicity, safety germ resistance, but its sterilization effect is bad to part microorganism effect, particularly to some virus; And it is larger by organic substance influence; Wood plastic composite can discharge toxic substance in hot briquetting process has certain harm to human body; The metal ions such as the calcium contained in wood plastic composite, magnesium, aluminium have antagonistic action to quaternary ammonium salt antiseptic-germicide.The application of moulding to wood is all brought bad impact by these problems.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of photocatalysis antibacterial biomass wood plastic composite of antibacterial, safety non-toxic good with sterilization effect; Present invention also offers a kind of preparation method of photocatalysis antibacterial biomass wood plastic composite.
For solving the problems of the technologies described above, the present invention is grouped into primarily of the one-tenth of following portions by weight: thermoplastics 25 ~ 75 parts; Wooden powder 15 ~ 75 parts; Inorganic filler 5 ~ 20 parts; Modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials 1 ~ 10 part; Fire retardant 1 ~ 5 part; Lubricant 1 ~ 10 part; Coupling agent 1 ~ 8 part.
Thermoplastics of the present invention is for being polyethylene (PE), polypropylene (PP), polystyrene (PS), one or more in polyvinyl chloride (PVC), and it is the granular or platy shaped particles of 5 ~ 80 objects, and moisture is less than 0.5wt%.
Wooden powder of the present invention is one or more in wood powder, plant straw powder, plant species shell, and its particle diameter is 40 ~ 60 orders, and length-to-diameter ratio is 8 ~ 14, and moisture is less than 2wt%, and combust is less than 3wt%.
Inorganic filler of the present invention is one or both in talcum powder, calcium carbonate, flyash and blast-furnace dust, and its particle diameter is 1000 orders to 15 μm.
Fire retardant of the present invention is one or more in aluminium hydroxide, magnesium hydroxide, trimeric cyanamide, trimeric cyanamide urea cyanate and decabromodiphynly oxide.
One or more in the TWP104 that SUNLUB1400 that light Yu (Beijing) chemical Science and Technology Ltd. produces moulded by lubricant of the present invention in being, Struktol company of the U.S. produces, stearic acid and stearate, PE wax (polyethylene wax).
Coupling agent of the present invention is maleic anhydride grafted polyethylene, the compatible coupling agent of PA series of high efficiency lubrication dispersion, one or both in two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester.
Modified Nano TiO of the present invention
2carry Ag
+, Cu
2+complex antimicrobials is prepared from by following technique: the Ti be first mixed with by titanyl sulfate
4+concentration is the solution of 0.1 ~ 1mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2; Configuration concentration is the phosphoric acid solution of 0.1 ~ 0.2mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; 100ml solution B is instilled in intensively stirred 200ml solution A, adds two (dioctylphyrophosphoric acid ester) the oxyacetate titanic acid ester of 200ml, 0.01mol/L polyoxyethylene glycol PEG2000 or KR-138S(simultaneously) be surface-modifying agent, form mixing solutions; Mixing solutions is heated to 80 ~ 120 DEG C of reactions, obtains white precipitate; By centrifugation after white precipitate ageing 2 ~ 5h, be washed to without SO
4 2-, then use absolute ethanol washing, dry, 600 ~ 800 DEG C of calcinings, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Matrix material of the present invention is also containing one or more in toughner, oxidation inhibitor, light/thermo-stabilizer, tinting material.
The processing step of the inventive method is as described below: (1) pre-mixing: by modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder and inorganic filler, coupling agent and fire retardant are mixed and made into Antibacterial accessory ingredient mixture through homogenizer;
(2) mix: will high mixer high-speed mixing will be added to be warming up to 80 ~ 100 DEG C by other raw materials except step (1), then Antibacterial accessory ingredient mixture is added, mixing is warming up to 110 ~ 130 DEG C, and after Homogeneous phase mixing, blanking is to cold mixer combination cooling to 50 DEG C, obtains mixture;
(3) granulation: by carry out in mixture forcing machine mixing, plastify, extrude glue lumpy material, glue lumpy material pulverizes crusher machine to being less than 40 order particle diameters through air-cooled spiral, obtains wood plastic composite particle;
(4) extrusion moulding: wood plastic composite particle is added in forcing machine carry out plastifying extrude, cooling and shaping and obtained described matrix material.
The beneficial effect adopting technique scheme to produce is: the present invention adopts modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder and (waste and old) PE plastics, (giving up) Poplar Powder and other auxiliary agent are raw material, solve the insect infestations such as the mould rotten fungi infestation of wood plastic composite and termite, and environmental friendliness, the minimizing wasting of resources.The present invention adopts nano-TiO
2carry Ag
+, Cu
2+complex antimicrobials powder, has antibacterial efficient rapidly with sterilization effect, safety non-toxic, produce without resistant organism, thoroughly, lasting, stablize and the feature such as broad spectrum antibacterial, there is TiO simultaneously
2photocatalysis antibacterial mildew-resistant and Ag
+, Cu
2+the dual long-lasting feature of antibiotic and sterilizing.
The present invention adopts KR-138S to nano-TiO
2carry Ag
+, Cu
2+complex antimicrobials powder has carried out modification, obtains modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder; Adopt this compound antibacterial powder material, the specific surface area that silverware is little and strong absorption property, make nanometer antibacterial function group fully mix with plastic grain and wood powder, makes nano-antibacterial biomass (PE wood is moulded) matrix material.The present invention adopts chemical coprecipitation to prepare Ag
+, Cu
2+mix nano-TiO
2powder, can obtain continuous densification, particle size is the TiO of 10 ~ 60nm
2polycrystalline Detitanium-ore-type carries Ag
+, Cu
2+nano-powder; This antiseptic-germicide not only utilizes Ag
+, Cu
2+antibiotic and sterilizing function, also uses nano-TiO
2photocatalysis antibacterial bacteria resistance function, efficient multiply sterilizing function when achieving long.The present invention also uses Cu
2+replace part Ag
+, solve Ag
+variable color, reduces cost, improves anti-microbial activity, enhances antibacterial ability.Anatase type nano TiO in the present invention
2have that specific surface area is large, polymolecularity, oxidation activity are high, stability is strong, to human non-toxic's physicochemical property, and to the decomposition of bacterium, virocyte and the feature of degrade instant effect, good endurance, non-secondary pollution, and there is the antibacterial such as broad spectrum antibacterial.
The inventive method is by waste and old thermoplastics, waste wood matter powder and nano-TiO
2carry Ag
+, Cu
2+, the plasticizing mixing through high-speed mixing, low temperature in varing proportions of complex antimicrobials powder and other auxiliary agent, extrusion moulding, preparation technology's process is moulded through conventional wood, technique is simple, does not change original technique, and the performance of antibacterial biological matter (PE wood is moulded) the matrix material each side formed all significantly improves.
Embodiment
Below in conjunction with specific embodiment, the present invention is further detailed explanation.
Embodiment 1: this photocatalysis antibacterial biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 35 parts, waste and old PE plastics, useless Poplar Powder 70 parts, talcum powder 12 parts, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 3 parts, 2 parts, aluminium hydroxide, the TWP104 6 parts that Struktol company of the U.S. produces, two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester 5 parts, toughner 5 parts, 5 parts, oxidation inhibitor, light/thermo-stabilizer 4 parts, tinting material 4 parts.
Preparation technology: (1) gets modified Nano TiO respectively
2carry Ag
+, Cu
2+complex antimicrobials powder, lubricant, fire retardant, inorganic filler join in homogenizer and carry out high-speed mixing, fully mix, and obtain Antibacterial accessory ingredient mixture, discharging is for subsequent use;
(2) get waste and old PE plastics, waste wood powder and lubricant respectively, other additive joins in high mixer machine and fully stir and heat, rotating speed is 1400 revs/min, shut down reduction of speed when heating temperatures to 90 DEG C and open the large lid of high mixer, again above-mentioned Antibacterial accessory ingredient mixture is joined in proportion in high-speed mixer and also continue stir and heat, fully mix; When heating temperatures to 120 DEG C, material is put into cold mixed cylinder and be cooled to 50 DEG C to obtain mixture, discharging is for subsequent use.
(3) mixture is put in parallel double-screw extruder (screw speed is 30 revs/min) carry out mixing, plastify, extrude glue lumpy material; during tablets press extruding pelletization, each zone temperatures is respectively: 140 DEG C, 160 DEG C, 180 DEG C, 190 DEG C, 195 DEG C and 200 DEG C (head temperature); glue lumpy material pulverizes crusher machine to being less than 40 orders through air-cooled spiral, obtains wood plastic composite particle.
(4) wood plastic composite particle is joined in conical double screw extruder carry out plastifying, mixing and extrude cooling and shaping and goods, screw speed is 28 revs/min, when forcing machine is extruded, each zone temperatures is respectively: 130 DEG C, 150 DEG C, 165 DEG C, 170 DEG C, 175 DEG C and 180 DEG C (head temperature), can obtain described biomass wood plastic composite.Gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2.
Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials adopts following technique to be prepared from: the Ti that titanyl sulfate is mixed with by (1)
4+concentration is the solution of 0.3mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2.
(2) configuration concentration is the phosphoric acid solution of 0.15mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; Solution B be added drop-wise in intensively stirred solution A, add polyoxyethylene glycol PEG2000 is surface-modifying agent simultaneously, forms mixing solutions.
(3) mixing solutions is slowly heated to 90 DEG C of reactions and obtains white precipitate in 4 hours, centrifugation after ageing 5h will be precipitated, adopt and be washed with distilled water to without SO
4 2-, then using absolute ethanol washing 3 times, 100 DEG C of dry 24h, 700 DEG C of calcining 2h, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Embodiment 2: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 25 parts, waste PP plastics, useless 75 parts, birch powder, 20 parts, flyash, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 8 parts, decabromodiphynly oxide 4 parts, stearic acid 1 part, maleic anhydride grafted polyethylene 8 parts, toughner 6 parts, light/thermo-stabilizer 6 parts.
Preparation technology is except following difference, and all the other are with embodiment 1:(2) shut down reduction of speed when heating temperatures to 80 DEG C and open the large lid of high mixer; When heating temperatures to 130 DEG C, material is put into cold mixed cylinder and be cooled to 50 DEG C to obtain mixture, discharging is for subsequent use.Gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2.
Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials adopts following technique to be prepared from: the Ti that titanyl sulfate is mixed with by (1)
4+concentration is the solution of 0.7mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2.
(2) configuration concentration is the phosphoric acid solution of 0.1mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; Solution B be added drop-wise in intensively stirred solution A, add KR-138S is surface-modifying agent simultaneously, forms mixing solutions.
(3) mixing solutions is slowly heated to 110 DEG C of reactions and obtains white precipitate in 3 hours, centrifugation after ageing 4h will be precipitated; Adopt and be washed with distilled water to without SO
4 2-, then using absolute ethanol washing 3 times, 80 DEG C of dry 24h, 600 DEG C of calcining 2h, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Embodiment 3: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 40 parts, waste PVC plastics, cotton stalk powder 63 parts, blast-furnace dust 18 parts, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 10 parts, trimeric cyanamide 1 part, 10 parts, PE wax, PA series of high efficiency lubrication dispersion compatible coupling agent 2 parts, toughner 8 parts, 5 parts, oxidation inhibitor, light/thermo-stabilizer 8 parts, tinting material 4 parts.
Preparation technology is except following difference, and all the other are with embodiment 1:(2) shut down reduction of speed when heating temperatures to 100 DEG C and open the large lid of high mixer; When heating temperatures to 120 DEG C, material is put into cold mixed cylinder and be cooled to 50 DEG C to obtain mixture, discharging is for subsequent use.Gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2.
Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials adopts following technique to be prepared from: the Ti that titanyl sulfate is mixed with by (1)
4+concentration is the solution of 0.1mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2.
(2) configuration concentration is the phosphoric acid solution of 0.12mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; Solution B be added drop-wise in intensively stirred solution A, add polyoxyethylene glycol PEG2000 is surface-modifying agent simultaneously, forms mixing solutions.
(3) mixing solutions is slowly heated to 120 DEG C of reactions and obtains white precipitate in 4 hours, centrifugation after ageing 3h will be precipitated; Adopt and be washed with distilled water to without SO
4 2-, then using absolute ethanol washing 3 times, 110 DEG C of dry 24h, 800 DEG C of calcining 2h, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Embodiment 4: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 25 parts, waste and old PE plastics, 25 parts, waste and old PS plastics, Pericarppium arachidis hypogaeae powder 55 parts, talcum powder 8 parts, 8 parts, calcium carbonate, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 2 parts, magnesium hydroxide 3 parts, stearate lubricant 4 parts, maleic anhydride grafted polyethylene 6 parts, 4 parts, oxidation inhibitor, light/thermo-stabilizer 4 parts.
Preparation technology is except following difference, and all the other are with embodiment 1:(2) shut down reduction of speed when heating temperatures to 90 DEG C and open the large lid of high mixer; When heating temperatures to 110 DEG C, material is put into cold mixed cylinder and be cooled to 50 DEG C to obtain mixture, discharging is for subsequent use.Gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2.
Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials adopts following technique to be prepared from: the Ti that titanyl sulfate is mixed with by (1)
4+concentration is the solution of 1.0mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2.
(2) configuration concentration is the phosphoric acid solution of 0.18mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; Solution B be added drop-wise in intensively stirred solution A, add KR-138S is surface-modifying agent simultaneously, forms mixing solutions.
(3) mixing solutions is slowly heated to 100 DEG C of reactions and obtains white precipitate in 2 hours, centrifugation after ageing 2h will be precipitated; Adopt and be washed with distilled water to without SO
4 2-, then using absolute ethanol washing 3 times, 90 DEG C of dry 24h, 750 DEG C of calcining 2h, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Embodiment 5: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 60 parts, waste and old PE plastics, useless Poplar Powder 30 parts, wheat stalk powder 12 parts, talcum powder 4 parts, 10 parts, flyash, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 5 parts, trimeric cyanamide urea cyanate 2 parts, in mould light Yu (Beijing) chemical Science and Technology Ltd. produce SUNLUB1400 8 parts, maleic anhydride grafted polyethylene 1 part, two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester 2 parts, toughner 1 part, 3 parts, oxidation inhibitor, tinting material 2 parts.
Its preparation method is with embodiment 1, and gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2.
Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials adopts following technique to be prepared from: the Ti that titanyl sulfate is mixed with by (1)
4+concentration is the solution of 0.4mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2.
(2) configuration concentration is the phosphoric acid solution of 0.2mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; Solution B be added drop-wise in intensively stirred solution A, add polyoxyethylene glycol PEG2000 is surface-modifying agent simultaneously, forms mixing solutions.
(3) mixing solutions is slowly heated to 80 DEG C of reactions and obtains white precipitate in 3.5 hours, centrifugation after ageing 5h will be precipitated; Adopt and be washed with distilled water to without SO
4 2-, then using absolute ethanol washing 3 times, 120 DEG C of dry 24h, 650 DEG C of calcining 2h, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
Embodiment 6: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: waste PE plastic 40 parts, useless 30 parts, PP plastics, China fir powder 25 parts, 10 parts, rice husk, 10 parts, calcium carbonate, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 1 part, magnesium hydroxide 2 parts, decabromodiphynly oxide 3 parts, the TWP104 3 parts that Struktol company of the U.S. produces, maleic anhydride grafted polyethylene 4 parts, PA series of high efficiency lubrication dispersion compatible coupling agent 3 parts, toughner 2 parts, light/thermo-stabilizer 4 parts, tinting material 4 parts.
Its preparation method is with embodiment 1, and gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2; Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+the preparation technology of complex antimicrobials is with embodiment 1.
Embodiment 7: these biomass wood plastic composite adopts following proportioning raw materials and preparation method.
These biomass wood plastic composite is made up of following compositions: 75 parts, waste and old PE plastics, useless poplar powder 15 parts, 5 parts, flyash, modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder 7 parts, 3 parts, aluminium hydroxide, stearic acid 2 parts, 3 parts, PE wax, maleic anhydride grafted polyethylene 1 part.
Its preparation method is with embodiment 1, and gained biomass wood plastic composite carries out the test of every mechanical property and anti-microbial property, and test result is in table 1 and table 2; Above-mentioned modified Nano TiO
2carry Ag
+, Cu
2+the preparation technology of complex antimicrobials is with embodiment 1.
In above-described embodiment: described waste and old PE plastics are the granular or platy shaped particles of 5 ~ 80 objects, and moisture is less than 0.5wt%; Described useless Poplar Powder is 40 ~ 60 orders, and length-to-diameter ratio is 8 ~ 14, and moisture is less than 2wt%, and combust is less than 3wt%; The particle diameter of described inorganic filler is 1000 orders to 15 μm.The performance index of above-described embodiment gained biomass wood-plastic composite material products are in table 1 and table 2.
Table 1: each embodiment product mechanical performance index
In upper table, adopt omnipotent test machine for mechanism, measure mechanical property with reference to GB/T 29418-2012 wood-plastic composite material products physical and mechanical property testing standard.
Table 2: the antibacterial index of each embodiment product
In upper table, adopt beef extract-peptone as substratum, cultivate 24 hours, during product performance test, adopt agar plate method for counting colonies mensuration photocatalysis antibacterial wood plastic composite to the germ resistance of intestinal bacteria, streptococcus aureus and whiterot fungi.
Claims (10)
1. a photocatalysis antibacterial biomass wood plastic composite, is characterized in that, its one-tenth primarily of following portions by weight is grouped into: thermoplastics 25 ~ 75 parts; Wooden powder 15 ~ 75 parts; Inorganic filler 5 ~ 20 parts; Modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials 1 ~ 10 part; Fire retardant 1 ~ 5 part; Lubricant 1 ~ 10 part; Coupling agent 1 ~ 8 part.
2. photocatalysis antibacterial biomass wood plastic composite according to claim 1, it is characterized in that: described thermoplastics is one or more in polyethylene, polypropylene, polystyrene, polyvinyl chloride, it is the granular or platy shaped particles of 5 ~ 80 objects, and moisture is less than 0.5wt%.
3. photocatalysis antibacterial biomass wood plastic composite according to claim 1, it is characterized in that: described wooden powder is one or more in wood powder, plant straw powder, plant species shell, and its particle diameter is 40 ~ 60 orders, and length-to-diameter ratio is 8 ~ 14, moisture is less than 2wt%, and combust is less than 3wt%.
4. photocatalysis antibacterial biomass wood plastic composite according to claim 1, is characterized in that: described inorganic filler is one or both in talcum powder, calcium carbonate, flyash and blast-furnace dust, and its particle diameter is 1000 orders to 15 μm.
5. photocatalysis antibacterial biomass wood plastic composite according to claim 1, is characterized in that: described fire retardant is one or more in aluminium hydroxide, magnesium hydroxide, trimeric cyanamide, trimeric cyanamide urea cyanate and decabromodiphynly oxide.
6. photocatalysis antibacterial biomass wood plastic composite according to claim 1, is characterized in that: one or more in the TWP104 that SUNLUB1400 that light Yu (Beijing) chemical Science and Technology Ltd. produces moulded by described lubricant in being, Struktol company of the U.S. produces, stearic acid and stearate, PE wax.
7. photocatalysis antibacterial biomass wood plastic composite according to claim 1, is characterized in that: described coupling agent is maleic anhydride grafted polyethylene, the compatible coupling agent of PA series of high efficiency lubrication dispersion, one or both in two (dioctylphyrophosphoric acid ester) oxyacetate titanic acid ester.
8. photocatalysis antibacterial biomass wood plastic composite according to claim 1, is characterized in that, described modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials is prepared from by following technique: the Ti be first mixed with by titanyl sulfate
4+concentration is the solution of 0.1 ~ 1mol/L, then adds urea in the solution, and stir and make it be dissolved as uniform solution A, wherein reactant mol ratio is TiOSO
4: CO (NH
2)
2=1:2; Configuration concentration is the phosphoric acid solution of 0.1 ~ 0.2mol/L silver nitrate solution, 0.12mol/L cupric nitrate and 0.1mol/L, and three kinds of solution are mixed into solution B; 100ml solution B is instilled in intensively stirred 200ml solution A, adds two (dioctylphyrophosphoric acid ester) the oxyacetate titanic acid ester of 200ml, 0.01mol/L polyoxyethylene glycol PEG2000 or KR-138S(simultaneously) be surface-modifying agent, form mixing solutions; Mixing solutions is heated to 80 ~ 120 DEG C of reactions, obtains white precipitate; By centrifugation after white precipitate ageing 2 ~ 5h, be washed to without SO
4 2-, then use absolute ethanol washing, dry, 600 ~ 800 DEG C of calcinings, obtain modified Nano TiO
2carry Ag
+, Cu
2+antiseptic-germicide powder.
9. the photocatalysis antibacterial biomass wood plastic composite according to claim 1-8 any one, is characterized in that: described matrix material is also containing one or more in toughner, oxidation inhibitor, light/thermo-stabilizer, tinting material.
10. the preparation method of photocatalysis antibacterial biomass wood plastic composite described in claim 1, it is characterized in that, its processing step is as described below: (1) pre-mixing: by modified Nano TiO
2carry Ag
+, Cu
2+complex antimicrobials powder and inorganic filler, coupling agent and fire retardant are mixed and made into Antibacterial accessory ingredient mixture through homogenizer;
(2) mix: will high mixer high-speed mixing will be added to be warming up to 80 ~ 100 DEG C by other raw materials except step (1), then Antibacterial accessory ingredient mixture is added, mixing is warming up to 110 ~ 130 DEG C, and after Homogeneous phase mixing, blanking is to cold mixer combination cooling to 50 DEG C, obtains mixture;
(3) granulation: by carry out in mixture forcing machine mixing, plastify, extrude glue lumpy material, glue lumpy material pulverizes crusher machine to being less than 40 order particle diameters through air-cooled spiral, obtains wood plastic composite particle;
(4) extrusion moulding: wood plastic composite particle is added in forcing machine carry out plastifying extrude, cooling and shaping and obtained described matrix material.
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| CN104987597A (en) * | 2015-07-28 | 2015-10-21 | 苏州荣昌复合材料有限公司 | Antibacterial PP (Polypropylene) modified plastics |
| CN105086265A (en) * | 2015-08-26 | 2015-11-25 | 安徽北马科技有限公司 | Photocatalytic antibacterial biomass wood-plastic composite material |
| CN105111771A (en) * | 2015-10-17 | 2015-12-02 | 霍进铭 | Preparation method of wood-plastic material |
| CN105949568A (en) * | 2016-05-25 | 2016-09-21 | 南通慧源塑胶有限公司 | Antibacterial environment-friendly wood-plastic composite material |
| CN106279916A (en) * | 2016-08-28 | 2017-01-04 | 葛彬斌 | A kind of insect protected antibacterial polyethylene material and preparation method thereof |
| CN106519604A (en) * | 2016-11-15 | 2017-03-22 | 墨宝股份有限公司 | Antibiotic and flame-retardant straw composite material and preparation method thereof |
| CN106633989A (en) * | 2016-12-30 | 2017-05-10 | 深圳市泽青源科技开发服务有限公司 | Fungus-based biomass packaging material with bagasse as main material and preparation method of fungus-based biomass packaging material |
| CN107254093A (en) * | 2017-07-05 | 2017-10-17 | 江苏旭华圣洛迪建材有限公司 | A kind of antibacterial flame-retardant wood plastic composite and preparation method thereof |
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| CN109294262A (en) * | 2018-09-13 | 2019-02-01 | 安徽省申运木业有限公司 | A kind of anti-mildew timber material |
| CN109589778A (en) * | 2018-10-17 | 2019-04-09 | 南京工程学院 | It is a kind of for removing the nano material of bacterium and formaldehyde |
| CN111495408A (en) * | 2020-04-22 | 2020-08-07 | 上海市普陀区人民医院(上海纺织第一医院) | Visible light photocatalytic bactericide and preparation method and application thereof |
| CN111978660A (en) * | 2020-08-31 | 2020-11-24 | 潘晶 | Antibiotic mould proof bamboo wood fibre integrated wallboard |
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| CN101381521A (en) * | 2007-09-03 | 2009-03-11 | 中山市森朗环保装饰建材有限公司 | Preparation method of photo-catalytic nano wood-plastic board |
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Cited By (18)
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| CN104987597A (en) * | 2015-07-28 | 2015-10-21 | 苏州荣昌复合材料有限公司 | Antibacterial PP (Polypropylene) modified plastics |
| CN105086265A (en) * | 2015-08-26 | 2015-11-25 | 安徽北马科技有限公司 | Photocatalytic antibacterial biomass wood-plastic composite material |
| CN105111771A (en) * | 2015-10-17 | 2015-12-02 | 霍进铭 | Preparation method of wood-plastic material |
| CN105949568A (en) * | 2016-05-25 | 2016-09-21 | 南通慧源塑胶有限公司 | Antibacterial environment-friendly wood-plastic composite material |
| CN106279916A (en) * | 2016-08-28 | 2017-01-04 | 葛彬斌 | A kind of insect protected antibacterial polyethylene material and preparation method thereof |
| CN106519604A (en) * | 2016-11-15 | 2017-03-22 | 墨宝股份有限公司 | Antibiotic and flame-retardant straw composite material and preparation method thereof |
| CN106633989A (en) * | 2016-12-30 | 2017-05-10 | 深圳市泽青源科技开发服务有限公司 | Fungus-based biomass packaging material with bagasse as main material and preparation method of fungus-based biomass packaging material |
| CN106633989B (en) * | 2016-12-30 | 2019-05-24 | 深圳市泽青源科技开发服务有限公司 | Using bagasse as fungi based biomass packaging material of major ingredient and preparation method thereof |
| CN107417966A (en) * | 2017-06-21 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | A kind of antiseptic and preparation method thereof |
| CN107254093A (en) * | 2017-07-05 | 2017-10-17 | 江苏旭华圣洛迪建材有限公司 | A kind of antibacterial flame-retardant wood plastic composite and preparation method thereof |
| CN107459958A (en) * | 2017-07-28 | 2017-12-12 | 安徽安大华泰新材料有限公司 | A kind of adhesive of waterproof high shelf-life for paper product processing and preparation method thereof |
| CN107602982A (en) * | 2017-09-26 | 2018-01-19 | 华北理工大学 | A kind of air purification type house refuse stacks sheet material and preparation method thereof temporarily |
| CN107974095A (en) * | 2017-12-26 | 2018-05-01 | 浙江王斌装饰材料有限公司 | A kind of environment-protection nano antibiosis wood plastic PVC board and preparation method thereof |
| CN108587213A (en) * | 2018-05-11 | 2018-09-28 | 佛山市上利丰装饰材料有限公司 | The preparation method of high-strength composite plastic-wood material |
| CN109294262A (en) * | 2018-09-13 | 2019-02-01 | 安徽省申运木业有限公司 | A kind of anti-mildew timber material |
| CN109589778A (en) * | 2018-10-17 | 2019-04-09 | 南京工程学院 | It is a kind of for removing the nano material of bacterium and formaldehyde |
| CN111495408A (en) * | 2020-04-22 | 2020-08-07 | 上海市普陀区人民医院(上海纺织第一医院) | Visible light photocatalytic bactericide and preparation method and application thereof |
| CN111978660A (en) * | 2020-08-31 | 2020-11-24 | 潘晶 | Antibiotic mould proof bamboo wood fibre integrated wallboard |
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