CN108250568A - A kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material - Google Patents
A kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material Download PDFInfo
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Abstract
The present invention relates to bamboo-plastic composite material preparing technical fields, and in particular to a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material.The present invention is using polypropylene as matrix, modified bamboo fibre and modified nano zinc oxide are as reinforcing agent, and it is aided with self-control antimicrobial emulsion and containing hydrogen silicone oil etc. and mildew-proof water-resistant type bamboo-plastic composite material is prepared, surface modification is carried out to self-control bamboo fibre first with nano-calcium carbonate and disodium ethylene diamine tetraacetate, improve the mechanical property of bamboo-plastic composite material, it is modified using Nano-zinc Oxide by Silane Coupling Agents, the zinc ion of nano zine oxide dissolution is combined with cell membrane and memebrane protein, pass through the construction of damaging cells, prevent bacterial reproduction, utilize the special nature of nano zine oxide, the effect of playing fungus and mildew resistance, continue to add containing hydrogen silicone oil, form fine and close containing hydrogen silicone oil hydrophobic protective layer, it is improved conducive to the water resistance of bamboo-plastic composite material, it is with a wide range of applications.
Description
Technical field
The present invention relates to bamboo-plastic composite material preparing technical fields, and in particular to a kind of mildew-proof water-resistant type bamboo-plastic composite material
Preparation method.
Background technology
China is the country that bamboo timber resource is the abundantest in the world, wherein bamboo grove area, bamboo type and economic utilization
Level all occupies first place in the world.Bamboo has many advantages, such as that fast growth, morning of becoming a useful person, intensity height, good toughness, hardness are big, in many fields
It is widely used.It is a kind of there are bright prospects using bamboo fibre, bamboo powder and the compound bamboo-plastic composite material of other materials
Composite material.
Bamboo-plastic composite material is added in thermoplastic for reinforcing material or filler in the form of bamboo fibre, bamboo powder,
And passing through heating makes bamboo wood and the thermoplastic of molten condition are combined or referred to the micro- of organic monomer injection bamboo wood
In fine texture, then using processing such as radiation method or membrane by accelerant process, organic monomer is made to generate graft copolymerization or homopolymerization with bamboo wood component
A kind of material of object.Bamboo-plastic composite material has from ultraviolet damage, the fade slow, erosion from insect pest and mushroom, waterproof
It is anti-corrosion, do not crack, without rotting, be easy to cut, there is natural woodiness touch, without harmful ingredient, it is environmentally friendly,
The advantages that recyclable regenerative is a kind of green product.Bamboo-plastic composite material has been widely used in automobile making, building dress
The fields such as decorations, indoor decoration, packed and transported.
But since a large amount of polar group such as hydroxyl and phenolic hydroxyl group etc. are contained in bamboo powder surface, stronger hydrophily is shown,
With thermoplastic poor compatibility, easily to reunite in plastic matrix, and the melt fluidity of material is poor, dispersion is uneven,
Composite materials property is caused to decline.Since bamboo fibre has combustible nature in itself, so the anti-flammability of bamboo-plastic composite material
Can be bad, it also easily deforms under high temperature environment or leads to hydraulic performance decline.
Therefore, developing a kind of bamboo-plastic composite material that can solve above-mentioned performance issue is highly desirable.
Invention content
The technical problems to be solved by the invention：Contain greatly for the bamboo fibre surface in current common bamboo-plastic composite material
The polar group of amount such as hydroxyl and phenolic hydroxyl group etc., show stronger hydrophily, therefore it is easy to appear mould, in addition bamboo fibre
With the poor compatibility of thermoplastic, easily reunite in plastic matrix, and the melt fluidity of material is poor, dispersion is uneven
It is even, the defects of composite materials property is caused to decline, provide a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material, it is characterised in that specifically preparation process is：
（1）Weigh the nano zine oxide that 10~12g grain sizes are 24~32nm pour into 90~100mL deionized waters and 50~
In the beaker of 60mL absolute ethyl alcohols, and with ultrasonic wave separating apparatus 30~36min of ultrasonic disperse, nano zinc oxide fluid dispersion is obtained,
It is 3 in mass ratio by nano zinc oxide fluid dispersion and silane resin acceptor kh-550：1 mixing is placed in beaker, temperature for 75~
Be stirred to react 1~2h under conditions of 85 DEG C, obtain mixed liquor, mixed liquor is put into centrifuge, rotating speed for 1000~
Centrifuge 45~60min under conditions of 1200r/min, isolated sediment, and with absolute ethyl alcohol washing precipitate 3~5 times, most
After be put into vacuum drying chamber, be 1~2h dry at 65~75 DEG C in temperature, cooling discharging obtains modified nano zinc oxide；
（2）Brufen, isothiazolinone and distilled water are mixed to be placed in beaker and stirred, obtains mixed liquor, then into mixed liquor
The lauryl sodium sulfate of mixed liquor quality 1% is added in, continues to be mixed, obtains self-control antimicrobial emulsion；
（3）It weighing 80~90g bamboo chips and is put into 120~160mL sodium hydroxide solutions and impregnate, heat temperature raising obtains soak, then
2~4g citric acids are added in into soak, continue heat-insulation soaking, after the puffing softening of bamboo chip, bamboo chip is rinsed with deionized water, obtains
To fine fibre beam, fine fibre beam is put into sodium carbonate and is aged, obtain ageing fine fibre beam, then ageing is rinsed carefully with deionized water
Fibre bundle is finally putting into baking oven and dries, and obtains self-control bamboo fibre, by self-control bamboo fibre, nano-calcium carbonate, ethylenediamine tetra-acetic acid
Disodium and deionized water mixing are placed in beaker, and sealing is impregnated, and dry discharging obtains modified bamboo fibre；
（4）It counts in parts by weight, weighs 40~50 parts of polypropylene, 30~40 parts of modified bamboo fibres and 16~20 parts of modifications respectively and receive
Rice zinc oxide mixing is placed in blender and stirs, then adds 4~6 parts of self-control antimicrobial emulsions, 3~5 parts of containing hydrogen silicone oils and 1~3 part
Stearic acid continues 1~2h of mixing, obtains mixture, mixture is poured into blended melting in dual-screw pelletizer, after melting
Extrusion molding in double screw extruder is put into, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
Step（1）The grain size of the nano zine oxide be 24~32nm, the ultrasonic disperse time be 30~36min, nanometer
The mass ratio of zinc oxide fluid dispersion and silane resin acceptor kh-550 is 3：1, it is 75~85 DEG C to be stirred to react temperature, when being stirred to react
Between for 1~2h, centrifugal rotational speed is 1000~1200r/min, and centrifugation time is 45~60min, and washing times are 3~5 times, dry
Temperature is 65~75 DEG C, and drying time is 1~2h.
Step（2）The mass ratio of the brufen, isothiazolinone and distilled water is 2：1：4, mixing time for 6~
8min, continuation mixing time are 12~16min.
Step（3）The mass fraction of the sodium hydroxide solution be 24%, soaking time be 35~45min, heat temperature raising
Temperature is 85~95 DEG C, and continuation soaking time is 12~16min, and washing time is 2~4 times, and digestion time is 45~60min,
Washing time is 3~5 times again, and drying temperature is 75~85 DEG C, and drying time is 16~24min, makes bamboo fibre, nano-calcium carbonate by oneself
The mass ratio of calcium, disodium ethylene diamine tetraacetate and deionized water is 2：1：1：5, sealing soaking temperature is 35~45 DEG C, sealing leaching
The bubble time is 1~2h.
Step（4）The mixing time is 32~40min, and it is 100~120 DEG C to continue whipping temp, continues stirring and turns
For speed for 240~320r/min, continuations mixing time is 1~2h, and blended melting temperature is 180~190 DEG C, and the blended melting time is
16~20min, extrusion temperature are 185~200 DEG C.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is using polypropylene as matrix, and modified bamboo fibre and modified nano zinc oxide are as reinforcing agent, and it is anti-to be aided with self-control
Mildew-proof water-resistant type bamboo-plastic composite material is prepared in bacterium lotion and containing hydrogen silicone oil etc., first with nano-calcium carbonate and ethylenediamine tetraacetic
Acetic acid disodium carries out surface modification to self-control bamboo fibre, makes nano-calcium carbonate particles uniform adsorption on self-control bamboo fibre surface, and
Promote self-control bamboo fibre arrangement loose, the contact area of self-control bamboo fibre and matrix is increased, so as to improve self-control bamboo fibre
Dispersibility in the base, and nano-calcium carbonate contains hydroxyl, and the effect of hydrogen bond or covalent bond can be generated with polymeric matrix,
Reduce stress concentration phenomenon during matrix stress, effectively played nano particle reinforced tenacity increased effect, improve bamboo modeling
In addition the mechanical property of composite material contains natural sterilization component " bamboo a kind of jade " in bamboo so that and bamboo has the characteristic of antibacterial,
Wherein antibacterial material is incorporated on cellulose macromolecule always, so as to which bamboo fibre be made to have antibiotic property, is conducive to bamboo-plastic combined material
The mildew resistance of material is improved；
（2）The present invention is modified using Nano-zinc Oxide by Silane Coupling Agents, since silane resin acceptor kh-550 is easily with receiving
Rice zinc oxide surface hydroxyl chemically reacts, and hydrolytic condensation forms Si-O-Zn structures, is dispersed in nano zine oxide
Make bamboo fibre surface by oneself, while the zinc ion of nano zine oxide dissolution is combined with cell membrane and memebrane protein, passes through damaging cells
Construction, prevent bacterial reproduction, the property furthermore with nano zine oxide with photocatalytic activity and high-specific surface area can produce
The anion hydroxyl free radical and peroxide of raw strong oxidizing property, coup injury bacterium, the effect of playing fungus and mildew resistance, so as to carry
Nano zine oxide is effectively filled in intrinsic silicon hole, forms matrix surface by the mildew resistance of high bamboo-plastic composite material
Compact texture improves the mechanical property of bamboo-plastic composite material；
（3）Isothiazolinone and brufen are mixed and made into self-control antimicrobial emulsion by the present invention, and bamboo-plastic composite material green body is impregnated
In antimicrobial emulsion is made by oneself, one layer of antibacterial protecting film is formed, when being combined due to isothiazolinone and brufen, isothiazolinone
It can mutually be attracted by the negative electrical charge of active group and bacterium surface cell for carrying positive charge, physically destroy bacterial cell
Film makes bacterial death, and in addition the smaller ibuprofen pharmaceutical molecule of relative molecular mass influences then by penetrating into cell interior
Cellular physiological events reach bactericidal mould proof effect again, further improve the mildew resistance of bamboo-plastic composite material, and the present invention continues to add
Add containing hydrogen silicone oil, since containing hydrogen silicone oil can react with self-control bamboo fibre surface hydroxyl, form fine and close containing hydrogen silicone oil and dredge
Water conservation layer so as to the contact rate for reducing water with making bamboo fibre surface by oneself, increases the phase of self-control bamboo fibre and polymer molecule
Capacitive, the water resistance for being conducive to bamboo-plastic composite material are improved, are with a wide range of applications.
Specific embodiment
Weigh the nano zine oxide that 10~12g grain sizes are 24~32nm pour into 90~100mL deionized waters and 50~
In the beaker of 60mL absolute ethyl alcohols, and with ultrasonic wave separating apparatus 30~36min of ultrasonic disperse, nano zinc oxide fluid dispersion is obtained,
It is 3 in mass ratio by nano zinc oxide fluid dispersion and silane resin acceptor kh-550：1 mixing is placed in beaker, temperature for 75~
Be stirred to react 1~2h under conditions of 85 DEG C, obtain mixed liquor, mixed liquor is put into centrifuge, rotating speed for 1000~
Centrifuge 45~60min under conditions of 1200r/min, isolated sediment, and with absolute ethyl alcohol washing precipitate 3~5 times, most
After be put into vacuum drying chamber, be 1~2h dry at 65~75 DEG C in temperature, cooling discharging obtains modified nano zinc oxide；It presses
Mass ratio is 2：1：The mixing of brufen, isothiazolinone and distilled water is placed in 6~8min of stirring in beaker by 4, obtains mixed liquor,
The lauryl sodium sulfate of mixed liquor quality 1% is added in into mixed liquor again, continues 12~16min of mixing, it is anti-to obtain self-control
Bacterium lotion；Weigh 80~90g bamboo chips be put into 120~160mL mass fractions be 24% sodium hydroxide solution in impregnate 35~
45min is heated to 85~95 DEG C, obtains soak, then 2~4g citric acids are added in into soak, continues heat-insulation soaking
12~16min after the puffing softening of bamboo chip, rinses bamboo chip 2~4 times with deionized water, obtains fine fibre beam, fine fibre beam is put
Enter 45~60min of ageing in sodium carbonate, obtain ageing fine fibre beam, then ageing fine fibre beam is rinsed 3~5 times with deionized water,
It is finally putting into baking oven, dries 16~24min at being 75~85 DEG C in temperature, obtain self-control bamboo fibre, by self-control bamboo fibre, receive
Rice calcium carbonate, disodium ethylene diamine tetraacetate and deionized water are 2 in mass ratio：1：1：5 mixing are placed in beaker, are 35 in temperature
1~2h is impregnated in sealing at~45 DEG C, and dry discharging obtains modified bamboo fibre；It counts in parts by weight, weighs 40~50 parts respectively and gather
Propylene, 30~40 parts of modified bamboo fibres and 16~20 parts of modified nano zinc oxide mixing are placed in 32~40min of stirring in blender,
4~6 parts of self-control antimicrobial emulsions, 3~5 parts of containing hydrogen silicone oils and 1~3 part of stearic acid are added again, are 100~120 DEG C, rotating speed in temperature
To continue 1~2h of mixing under conditions of 240~320r/min, mixture is obtained, mixture is poured into dual-screw pelletizer
In, 16~20min of blended melting at being 180~190 DEG C in temperature is put into after melting in double screw extruder, is 185 in temperature
Extrusion molding at~200 DEG C, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
Example 1
The nano zine oxide that 10g grain sizes are 24nm is weighed to pour into the beaker with 9mL deionized waters and 50mL absolute ethyl alcohols, and
With ultrasonic wave separating apparatus ultrasonic disperse 30min, nano zinc oxide fluid dispersion is obtained, by nano zinc oxide fluid dispersion and silane coupled
Agent KH-550 is 3 in mass ratio：1 mixing is placed in beaker, is stirred to react 1h under conditions of being 75 DEG C in temperature, is mixed
Mixed liquor is put into centrifuge by liquid, in rotating speed to centrifuge 45min under conditions of 1000r/min, isolated sediment, and
It with absolute ethyl alcohol washing precipitate 3 times, is finally putting into vacuum drying chamber, dry 1h at being 65 DEG C in temperature, cooling discharging obtains
To modified nano zinc oxide；It is 2 in mass ratio：1：Brufen, isothiazolinone and distilled water are mixed and are placed in beaker and stir by 4
6min obtains mixed liquor, then the lauryl sodium sulfate of mixed liquor quality 1% is added in into mixed liquor, continues to be mixed
12min obtains self-control antimicrobial emulsion；It weighs 80g bamboo chips and is put into the sodium hydroxide solution that 120mL mass fractions are 24% and impregnate
35min is heated to 85 DEG C, obtains soak, then 2g citric acids are added in into soak, continues heat-insulation soaking 12min, treat
After the puffing softening of bamboo chip, rinse bamboo chip 2 times with deionized water, obtain fine fibre beam, fine fibre beam is put into sodium carbonate and is aged
45min obtains ageing fine fibre beam, then rinses ageing fine fibre beam 3 times with deionized water, is finally putting into baking oven, in temperature
It is to dry 16min at 75 DEG C, obtains self-control bamboo fibre, by self-control bamboo fibre, nano-calcium carbonate, disodium ethylene diamine tetraacetate and goes
Ionized water is 2 in mass ratio：1：1：5 mixing are placed in beaker, are sealed at being 35 DEG C in temperature and are impregnated 1h, and dry discharging obtains
Modified bamboo fibre；It counts in parts by weight, weighs 40 parts of polypropylene, 30 parts of modified bamboo fibres and 16 parts of modified nano zinc oxides respectively
Mixing, which is placed in blender, stirs 32min, then adds 4 parts of self-control antimicrobial emulsions, 3 parts of containing hydrogen silicone oils and 1 part of stearic acid, in temperature
Continue that 1h is mixed under conditions of being 240r/min for 100 DEG C, rotating speed, obtain mixture, mixture is poured into twin-screw and is made
In grain machine, blended melting 16min at being 180 DEG C in temperature is put into double screw extruder after melting, in the case where temperature is 185 DEG C
Extrusion molding, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
Example 2
The nano zine oxide that 11g grain sizes are 28nm is weighed to pour into the beaker with 95mL deionized waters and 55mL absolute ethyl alcohols,
And with ultrasonic wave separating apparatus ultrasonic disperse 33min, nano zinc oxide fluid dispersion is obtained, nano zinc oxide fluid dispersion and silane is even
It is 3 in mass ratio to join agent KH-550：1 mixing is placed in beaker, is stirred to react 1.5h under conditions of being 80 DEG C in temperature, is mixed
Liquid is closed, mixed liquor is put into centrifuge, in rotating speed to centrifuge 53min under conditions of 1100r/min, isolated sediment,
And with absolute ethyl alcohol washing precipitate 4 times, it is finally putting into vacuum drying chamber, dry 1.5h at being 70 DEG C in temperature is cooled down out
Material, obtains modified nano zinc oxide；It is 2 in mass ratio：1：The mixing of brufen, isothiazolinone and distilled water is placed in beaker by 4
Middle stirring 7min obtains mixed liquor, then the lauryl sodium sulfate of mixed liquor quality 1% is added in into mixed liquor, continues mixing and stirs
14min is mixed, obtains self-control antimicrobial emulsion；It weighs 85g bamboo chips and is put into the sodium hydroxide solution that 140mL mass fractions are 24% and soak
40min is steeped, is heated to 90 DEG C, soak is obtained, then 3g citric acids are added in into soak, continues heat-insulation soaking 14min,
After the puffing softening of bamboo chip, rinse bamboo chip 3 times with deionized water, obtain fine fibre beam, fine fibre beam is put into old in sodium carbonate
Change 55min, obtain ageing fine fibre beam, then ageing fine fibre beam is rinsed 4 times with deionized water, be finally putting into baking oven, in temperature
It is to dry 20min at 80 DEG C to spend, obtain self-control bamboo fibre, will self-control bamboo fibre, nano-calcium carbonate, disodium ethylene diamine tetraacetate and
Deionized water is 2 in mass ratio：1：1：5 mixing are placed in beaker, sealing immersion 1.5h at being 40 DEG C in temperature, dry discharging,
Obtain modified bamboo fibre；It counts in parts by weight, weighs 45 parts of polypropylene, 35 parts of modified bamboo fibres and 18 parts of modified Nano oxygen respectively
Change zinc mixing, which is placed in blender, stirs 36min, then add 5 parts of self-control antimicrobial emulsions, 4 parts of containing hydrogen silicone oils and 2 parts of stearic acid,
Temperature is 110 DEG C, rotating speed continues that 1.5h is mixed under conditions of being 280r/min, obtains mixture, mixture is poured into double
In screw pelletizer, blended melting 18min at being 185 DEG C in temperature is put into double screw extruder after melting, is in temperature
Extrusion molding at 192 DEG C, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
Example 3
The nano zine oxide that 12g grain sizes are 32nm is weighed to pour into the beaker with 100mL deionized waters and 60mL absolute ethyl alcohols,
And with ultrasonic wave separating apparatus ultrasonic disperse 36min, nano zinc oxide fluid dispersion is obtained, nano zinc oxide fluid dispersion and silane is even
It is 3 in mass ratio to join agent KH-550：1 mixing is placed in beaker, is stirred to react 2h under conditions of being 85 DEG C in temperature, is mixed
Mixed liquor is put into centrifuge by liquid, in rotating speed to centrifuge 60min under conditions of 1200r/min, isolated sediment, and
It with absolute ethyl alcohol washing precipitate 5 times, is finally putting into vacuum drying chamber, dry 2h at being 75 DEG C in temperature, cooling discharging obtains
To modified nano zinc oxide；It is 2 in mass ratio：1：Brufen, isothiazolinone and distilled water are mixed and are placed in beaker and stir by 4
8min obtains mixed liquor, then the lauryl sodium sulfate of mixed liquor quality 1% is added in into mixed liquor, continues to be mixed
16min obtains self-control antimicrobial emulsion；It weighs 90g bamboo chips and is put into the sodium hydroxide solution that 160mL mass fractions are 24% and impregnate
45min is heated to 95 DEG C, obtains soak, then 4g citric acids are added in into soak, continues heat-insulation soaking 16min, treat
After the puffing softening of bamboo chip, rinse bamboo chip 4 times with deionized water, obtain fine fibre beam, fine fibre beam is put into sodium carbonate and is aged
60min obtains ageing fine fibre beam, then rinses ageing fine fibre beam 5 times with deionized water, is finally putting into baking oven, in temperature
It is to dry 24min at 85 DEG C, obtains self-control bamboo fibre, by self-control bamboo fibre, nano-calcium carbonate, disodium ethylene diamine tetraacetate and goes
Ionized water is 2 in mass ratio：1：1：5 mixing are placed in beaker, are sealed at being 45 DEG C in temperature and are impregnated 2h, and dry discharging obtains
Modified bamboo fibre；It counts in parts by weight, weighs 50 parts of polypropylene, 40 parts of modified bamboo fibres and 20 parts of modified nano zinc oxides respectively
Mixing, which is placed in blender, stirs 40min, then adds 6 parts of self-control antimicrobial emulsions, 5 parts of containing hydrogen silicone oils and 3 parts of stearic acid, in temperature
Continue that 2h is mixed under conditions of being 320r/min for 120 DEG C, rotating speed, obtain mixture, mixture is poured into twin-screw and is made
In grain machine, blended melting 20min at being 190 DEG C in temperature is put into double screw extruder after melting, in the case where temperature is 200 DEG C
Extrusion molding, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
Comparative example
With the bamboo-plastic composite material of company of Hefei City production as a comparison case
Bamboo-plastic composite material in mildew-proof water-resistant type bamboo-plastic composite material produced by the present invention and comparative example is detected, is detected
The results are shown in Table 1：
Mechanical property is with reference to QB/T4161-2011 standard testings.
Bending strength, the modulus of elasticity in static bending are according to GB/T9341-2000 standard testings.
Impact strength is according to GB/T1043.1-2008 standard testings.
Fungicidal properties is tested with reference to mould proof grade evaluation criterion ASTMG21-09.
0 grade-without mildew；1 grade-mildew area is less than 10%；2 grades-fungus growth covering surface is 10~30%；3 grades-mould gives birth to
Long covering surface is 30~60%；4 grades-fungus growth covering surface is more than 60%.
1 performance measurement result of table
From the data in table 1, it can be seen that mildew-proof water-resistant type bamboo-plastic composite material produced by the present invention, have mechanical property is good, mildew resistance is strong,
The advantages that not hygroscopic, hence it is evident that better than comparative example product.Therefore, there is wide prospect of the application.
Claims (5)
1. a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material, it is characterised in that specifically preparation process is：
（1）Weigh the nano zine oxide that 10~12g grain sizes are 24~32nm pour into 90~100mL deionized waters and 50~
In the beaker of 60mL absolute ethyl alcohols, and with ultrasonic wave separating apparatus 30~36min of ultrasonic disperse, nano zinc oxide fluid dispersion is obtained,
It is 3 in mass ratio by nano zinc oxide fluid dispersion and silane resin acceptor kh-550：1 mixing is placed in beaker, temperature for 75~
Be stirred to react 1~2h under conditions of 85 DEG C, obtain mixed liquor, mixed liquor is put into centrifuge, rotating speed for 1000~
Centrifuge 45~60min under conditions of 1200r/min, isolated sediment, and with absolute ethyl alcohol washing precipitate 3~5 times, most
After be put into vacuum drying chamber, be 1~2h dry at 65~75 DEG C in temperature, cooling discharging obtains modified nano zinc oxide；
（2）Brufen, isothiazolinone and distilled water are mixed to be placed in beaker and stirred, obtains mixed liquor, then into mixed liquor
The lauryl sodium sulfate of mixed liquor quality 1% is added in, continues to be mixed, obtains self-control antimicrobial emulsion；
（3）It weighing 80~90g bamboo chips and is put into 120~160mL sodium hydroxide solutions and impregnate, heat temperature raising obtains soak, then
2~4g citric acids are added in into soak, continue heat-insulation soaking, after the puffing softening of bamboo chip, bamboo chip is rinsed with deionized water, obtains
To fine fibre beam, fine fibre beam is put into sodium carbonate and is aged, obtain ageing fine fibre beam, then ageing is rinsed carefully with deionized water
Fibre bundle is finally putting into baking oven and dries, and obtains self-control bamboo fibre, by self-control bamboo fibre, nano-calcium carbonate, ethylenediamine tetra-acetic acid
Disodium and deionized water mixing are placed in beaker, and sealing is impregnated, and dry discharging obtains modified bamboo fibre；
（4）It counts in parts by weight, weighs 40~50 parts of polypropylene, 30~40 parts of modified bamboo fibres and 16~20 parts of modifications respectively and receive
Rice zinc oxide mixing is placed in blender and stirs, then adds 4~6 parts of self-control antimicrobial emulsions, 3~5 parts of containing hydrogen silicone oils and 1~3 part
Stearic acid continues 1~2h of mixing, obtains mixture, mixture is poured into blended melting in dual-screw pelletizer, after melting
Extrusion molding in double screw extruder is put into, cooling discharging is to get mildew-proof water-resistant type bamboo-plastic composite material.
2. a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material according to claim 1, it is characterised in that：Step
（1）The grain size of the nano zine oxide be 24~32nm, the ultrasonic disperse time be 30~36min, nano zinc oxide fluid dispersion
Mass ratio with silane resin acceptor kh-550 is 3：1, it is 75~85 DEG C to be stirred to react temperature, is stirred to react the time as 1~2h, from
Heart rotating speed is 1000~1200r/min, and centrifugation time is 45~60min, and washing times are 3~5 times, and drying temperature is 65~75
DEG C, drying time is 1~2h.
3. a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material according to claim 1, it is characterised in that：Step
（2）The mass ratio of the brufen, isothiazolinone and distilled water is 2：1：4, mixing time is 6~8min, continues to stir
Time is 12~16min.
4. a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material according to claim 1, it is characterised in that：Step
（3）The mass fraction of the sodium hydroxide solution is 24%, and soaking time is 35~45min, and heat temperature raising temperature is 85~95
DEG C, continuation soaking time is 12~16min, and washing time is 2~4 times, and digestion time is 45~60min, then washing time is 3
~5 times, drying temperature is 75~85 DEG C, and drying time is 16~24min, makes bamboo fibre, nano-calcium carbonate, ethylenediamine tetrem by oneself
Acid disodium and the mass ratio of deionized water are 2：1：1：5, sealing soaking temperature is 35~45 DEG C, and sealing soaking time is 1~2h.
5. a kind of preparation method of mildew-proof water-resistant type bamboo-plastic composite material according to claim 1, it is characterised in that：Step
（4）The mixing time is 32~40min, and it is 100~120 DEG C to continue whipping temp, continue speed of agitator for 240~
320r/min, continuation mixing time are 1~2h, and blended melting temperature is 180~190 DEG C, the blended melting time for 16~
20min, extrusion temperature are 185~200 DEG C.
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| CN110885566A (en) * | 2019-12-11 | 2020-03-17 | 安徽霖园外新材料有限公司 | Anti-corrosion wear-resistant bamboo-plastic composite material and preparation method thereof |
| CN110894321A (en) * | 2019-11-29 | 2020-03-20 | 安徽霖园外新材料有限公司 | Preparation method of mildew-proof bamboo-plastic composite material |
| CN110938259A (en) * | 2019-11-29 | 2020-03-31 | 安徽霖园外新材料有限公司 | Mildew-proof flame-retardant bamboo-plastic composite material and preparation method thereof |
| CN113829691A (en) * | 2021-09-23 | 2021-12-24 | 广东腾熙科技咨询有限公司 | Breathable and antibacterial functional fabric and preparation method thereof |
| CN113879681A (en) * | 2021-08-23 | 2022-01-04 | 箱联天下供应链管理有限公司 | Bamboo-plastic new material integrated tray turnover box |
| CN114634668A (en) * | 2022-02-18 | 2022-06-17 | 胡雪林 | Easily degradable bamboo fiber polypropylene composite master batch and preparation method thereof |
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| CN110894321A (en) * | 2019-11-29 | 2020-03-20 | 安徽霖园外新材料有限公司 | Preparation method of mildew-proof bamboo-plastic composite material |
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| CN113879681A (en) * | 2021-08-23 | 2022-01-04 | 箱联天下供应链管理有限公司 | Bamboo-plastic new material integrated tray turnover box |
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| CN116619505A (en) * | 2023-06-29 | 2023-08-22 | 福建省顺昌县升升木业有限公司 | Fireproof and mildew-proof treatment method for wood surface |
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