CN108424666A - A kind of garden handrail material and preparation method thereof containing modified coconut shell flour - Google Patents
A kind of garden handrail material and preparation method thereof containing modified coconut shell flour Download PDFInfo
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- CN108424666A CN108424666A CN201810382200.6A CN201810382200A CN108424666A CN 108424666 A CN108424666 A CN 108424666A CN 201810382200 A CN201810382200 A CN 201810382200A CN 108424666 A CN108424666 A CN 108424666A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The present invention provides a kind of garden handrail material and preparation method thereof containing modified coconut shell flour, is related to building material field, includes the raw material of following parts by weight：1.2 2.5 parts of 30 40 parts of polypropylene, modified 40 50 parts of coconut shell flour, 8 15 parts of precipitated calcium carbonate, 6 12 parts of wollastonite in powder, 5 12 parts of glass fibre, 49 parts of sepiolite, 49 parts of nano-titanium dioxide, 36 parts of nano yttrium oxide, 1.5 3 parts of silane coupling agent, 1.2 2.5 parts of bacteriostatic agent and antiaging agent；The object of the present invention is to provide a kind of garden handrail materials and preparation method thereof containing modified coconut shell flour, fence of the present invention has good water proofing property, weatherability and corrosion resistance with material, fold resistance and compressive property are excellent, the use of coconut shell flour is primary raw material, turn waste into wealth, reduces material production cost.
Description
Technical field
The invention belongs to building material fields, and in particular to a kind of garden handrail material and its system containing modified coconut shell flour
Preparation Method.
Background technology
The basis of garden landscape can be divided into two major classes：One kind is soft thing, such as trees, water body and wind, thin
Rain, sunlight, sky；Another kind of is the thing of hard, as floor file, wall, railing, landscape are constructed.Soft thing claims soft scape
It sees, typically naturally；The thing of hard, referred to as hard soil lanscape, it is typically artificial.
Gardens in the prior art are mainly wood materials, iron wire net materials or cement material, wood materials with railing
There are apt to rot, mould procreations rapidly, and the high disadvantage of loss ratio uses wood materials simultaneously because national timber resources is limited
Not environmentally；There is nigrescence of easily getting rusty, inaesthetic disadvantage in iron wire net materials；For cement material there are material heaviness, appearance is single
Disadvantage.
Invention content
For deficiency in the prior art, the object of the present invention is to provide a kind of garden handrail materials containing modified coconut shell flour
Material and preparation method thereof, fence of the present invention have good water proofing property, weatherability and corrosion resistance, fold resistance and resistance to compression with material
It has excellent performance, the use of coconut shell flour is primary raw material, turns waste into wealth, reduce material production cost.
The present invention provides the following technical solutions：
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
30-40 parts of polypropylene, modified 40-50 parts of coconut shell flour, 8-15 parts of precipitated calcium carbonate, 6-12 parts of wollastonite in powder, glass
5-12 parts of fiber, 4-9 parts of sepiolite, 4-9 parts of nano-titanium dioxide, 3-6 parts of nano yttrium oxide, 1.5-3 parts of silane coupling agent, suppression
1.2-2.5 parts of 1.2-2.5 parts of microbial inoculum and antiaging agent.
The preparation method of the modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of concentration 20-60 grams per liters, 40-50 degrees Celsius is warming up to, with 600-
After 800 revs/min of stirrings are impregnated 2-4 hours, filtering is rinsed 3-5 with distilled water after, is placed in vacuum drying oven, temperature control repeatedly
It to 80-90 degrees Celsius, after 15-20 hours dry, be placed in pulverizer and crush, cross 100-300 mesh sieve；
(b) triethanolamine and 2-4% for being equivalent to its weight 3-5% are added into step (a) treated coconut shell flour
After dibutyl tin laurate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 30-60 minutes to get.
Preferably, include the raw material of following parts by weight：33-37 parts of polypropylene, modified 43-47 parts of coconut shell flour, lightweight carbonic acid
10-13 parts of calcium, 8-10 parts of wollastonite in powder, 8-10 parts of glass fibre, 6-7 parts of sepiolite, 6-7 parts of nano-titanium dioxide, nano oxygen
Change 1.8-2.1 parts of 4-5 parts of yttrium, 2-2.5 parts of silane coupling agent, 1.7-2 parts of bacteriostatic agent and antiaging agent.
Preferably, which is characterized in that include the raw material of following parts by weight meter：35 parts of polypropylene is modified 46 parts of coconut shell flour, is light
12 parts of matter calcium carbonate, 9 parts of wollastonite in powder, 9 parts of glass fibre, 6.5 parts of sepiolite, 6.5 parts of nano-titanium dioxide, nano yttrium oxide
2 parts of 4.5 parts, 2.2 parts of silane coupling agent, 1.8 parts of bacteriostatic agent and antiaging agent.
Preferably, the silane coupling agent is vinyltriethoxysilane, 3- aminopropyl trimethoxysilanes and γ-mercapto
One or more of propyl-triethoxysilicane combines.
Preferably, the bacteriostatic agent is 1,2-benzisothiazolin-3-one, 2,4,5,6- daconil Ms and benzo miaow
One or more of azoles methyl carbamate combines.
Preferably, the antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol esters, Asia
Phosphate ester and 2- hydroxyl -4- n-octyloxy dibenzyl ketone are according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour in the present invention, specifically, including
Following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after stirring 3-6 minute, silane coupling agent is added, continues to stir 10-15 minutes, obtain
Mixture 1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 50-70 degrees Celsius, incorporation time is 2-3 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues to mix
5-10 minutes, mixed material 2 is obtained, mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get containing modified coconut husk
The garden handrail material of powder.
Preferably, the extrusion temperature of double screw extruder is 190-210 degrees Celsius in the step (3), and screw speed is
70-90 revs/min.
The beneficial effects of the invention are as follows：
(1) the object of the present invention is to provide a kind of garden handrail materials and preparation method thereof containing modified coconut shell flour, originally
Invention fence has good water proofing property, weatherability and corrosion resistance with material, and fold resistance and compressive property are excellent, use coconut husk
Powder is primary raw material, is turned waste into wealth, and material production cost is reduced.
(2) contain a large amount of lignin, cellulose in coconut husk, performance is excellent added with coconut shell flour is modified in raw material of the present invention
More, high-quality filler, while the occupied space of discarded coconut husk can be reduced using coconut husk, raw material sources are extensive, production cost
It is low, the coconut husk after being acidified using oxalic acid, the dispersibility through triethanolamine and tin dilaurate fourth tin modification and enhancing coconut shell flour, attachment
Power and anti-corrosive properties.
(3) nano-titanium dioxide is added in raw material of the present invention, the effect of nano-titanium dioxide shielding ultraviolet rays is strong, has good
Dispersibility and weatherability prevent the infringement of ultraviolet light as ultraviolet light screener, extend the usage time of material.
(4) bacteriostatic agent and age resister, bacteriostatic agent and age resister being added in raw material of the present invention can enhance as auxiliary agent
The anti-oxidant and bacteriostasis property of material, the comprehensive performance and usage time of reinforcing material.
Specific implementation mode
Embodiment 1
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
30 parts of polypropylene, modified 40 parts of coconut shell flour, 8 parts of precipitated calcium carbonate, 6 parts of wollastonite in powder, 5 parts of glass fibre, Hai Pao
4 parts of stone, 4 parts of nano-titanium dioxide, 3 parts of nano yttrium oxide, 1.5 parts of silane coupling agent, 1.2 parts of bacteriostatic agent and antiaging agent 1.2
Part.
The preparation method of modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of 20 grams per liter of concentration, 40 degrees Celsius is warming up to, with 600 revs/min
After stirring is impregnated 2 hours, filtering after rinsing 3 times repeatedly with distilled water, is placed in vacuum drying oven, and temperature control is dry to 80 degrees Celsius
After 15 hours, it is placed in pulverizer and crushes, sieve with 100 mesh sieve；
(b) February of the triethanolamine and 2% that are equivalent to its weight 3% is added into step (a) treated coconut shell flour
After dilaurylate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 30 minutes to get.
Silane coupling agent is vinyltriethoxysilane.
Bacteriostatic agent is 1,2- benzisothiazole-3-ketones.
Antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2-
Hydroxyl -4- n-octyloxy dibenzyl ketone is according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour, specifically, packet in the present embodiment
Include following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after stirring 3 minutes, silane coupling agent is added, continues stirring 10 minutes, obtains mixture
1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 50 degrees Celsius, incorporation time is 2 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues 5 points of mixing
Clock obtains mixed material 2, and mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get the garden containing modified coconut shell flour
Woods railing material.
The extrusion temperature of double screw extruder is 190 degrees Celsius in step (3), and screw speed is 70 revs/min.
Embodiment 2
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
40 parts of polypropylene, modified 50 parts of coconut shell flour, 15 parts of precipitated calcium carbonate, 12 parts of wollastonite in powder, 12 parts of glass fibre, sea
9 parts of afrodite, 9 parts of nano-titanium dioxide, 6 parts of nano yttrium oxide, 3 parts of silane coupling agent, 2.5 parts of bacteriostatic agent and antiaging agent 2.5
Part.
The preparation method of modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of 60 grams per liter of concentration, 50 degrees Celsius is warming up to, with 800 revs/min
After stirring is impregnated 4 hours, filtering after rinsing 5 times repeatedly with distilled water, is placed in vacuum drying oven, and temperature control is dry to 90 degrees Celsius
It after 20 hours, is placed in pulverizer and crushes, cross 300 mesh sieve；
(b) February of the triethanolamine and 4% that are equivalent to its weight 5% is added into step (a) treated coconut shell flour
After dilaurylate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 60 minutes to get.
Silane coupling agent is 3- aminopropyl trimethoxysilanes.
Bacteriostatic agent is 2,4,5,6- daconil Ms.
Antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2-
Hydroxyl -4- n-octyloxy dibenzyl ketone is according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour, specifically, packet in the present embodiment
Include following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after stirring 6 minutes, silane coupling agent is added, continues stirring 15 minutes, obtains mixture
1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 70 degrees Celsius, incorporation time is 3 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues 10 points of mixing
Clock obtains mixed material 2, and mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get the garden containing modified coconut shell flour
Woods railing material.
The extrusion temperature of double screw extruder is 210 degrees Celsius in step (3), and screw speed is 90 revs/min.
Embodiment 3
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
33 parts of polypropylene, modified 43 parts of coconut shell flour, 10 parts of precipitated calcium carbonate, 8 parts of wollastonite in powder, 8 parts of glass fibre, Hai Pao
1.8 parts of 6 parts of stone, 6 parts of nano-titanium dioxide, 4 parts of nano yttrium oxide, 2 parts of silane coupling agent, 1.7 parts of bacteriostatic agent and antiaging agent.
The preparation method of modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of 40 grams per liter of concentration, 45 degrees Celsius is warming up to, with 700 revs/min
After stirring is impregnated 3 hours, filtering after rinsing 4 times repeatedly with distilled water, is placed in vacuum drying oven, and temperature control is dry to 86 degrees Celsius
It after 18 hours, is placed in pulverizer and crushes, cross 200 mesh sieve；
(b) February of the triethanolamine and 3% that are equivalent to its weight 4% is added into step (a) treated coconut shell flour
After dilaurylate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 40 minutes to get.
Silane coupling agent is gamma-mercaptopropyltriethoxysilane.
Bacteriostatic agent is benzimidazole methyl carbamate.
Antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2-
Hydroxyl -4- n-octyloxy dibenzyl ketone is according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour, specifically, packet in the present embodiment
Include following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after stirring 4 minutes, silane coupling agent is added, continues stirring 12 minutes, obtains mixture
1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 58 degrees Celsius, incorporation time is 2.5 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues 7 points of mixing
Clock obtains mixed material 2, and mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get the garden containing modified coconut shell flour
Woods railing material.
The extrusion temperature of double screw extruder is 200 degrees Celsius in step (3), and screw speed is 80 revs/min.
Embodiment 4
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
37 parts of polypropylene, modified 47 parts of coconut shell flour, 13 parts of precipitated calcium carbonate, 10 parts of wollastonite in powder, 10 parts of glass fibre, sea
7 parts of afrodite, 7 parts of nano-titanium dioxide, 5 parts of nano yttrium oxide, 2.5 parts of silane coupling agent, 2 parts of bacteriostatic agent and antiaging agent 2.1
Part.
The preparation method of modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of 40 grams per liter of concentration, 48 degrees Celsius is warming up to, with 750 revs/min
After stirring is impregnated 2.5 hours, filtering after rinsing 5 times repeatedly with distilled water, is placed in vacuum drying oven, and temperature control is done to 82 degrees Celsius
It after dry 18 hours, is placed in pulverizer and crushes, cross 200 mesh sieve；
(b) triethanolamine and 2.5% for being equivalent to its weight 3.5% are added into step (a) treated coconut shell flour
After dibutyl tin laurate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 55 minutes to get.
Silane coupling agent is vinyltriethoxysilane.
Bacteriostatic agent is 1,2- benzisothiazole-3-ketones.
Antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2-
Hydroxyl -4- n-octyloxy dibenzyl ketone is according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour, specifically, packet in the present embodiment
Include following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after five minutes, silane coupling agent is added in stirring, continues stirring 14 minutes, obtains mixture
1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 65 degrees Celsius, incorporation time is 3 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues 9 points of mixing
Clock obtains mixed material 2, and mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get the garden containing modified coconut shell flour
Woods railing material.
The extrusion temperature of double screw extruder is 205 degrees Celsius in step (3), and screw speed is 85 revs/min.
Embodiment 5
A kind of garden handrail material containing modified coconut shell flour, includes the raw material of following parts by weight：
35 parts of polypropylene, modified 46 parts of coconut shell flour, 12 parts of precipitated calcium carbonate, 9 parts of wollastonite in powder, 9 parts of glass fibre, Hai Pao
6.5 parts of stone, 6.5 parts of nano-titanium dioxide, 4.5 parts of nano yttrium oxide, 2.2 parts of silane coupling agent, 1.8 parts of bacteriostatic agent and anti-aging
2 parts of agent.
The preparation method of modified coconut shell flour is：
(a) coconut shell flour is put into the oxalic acid solution liquid of 35 grams per liter of concentration, 50 degrees Celsius is warming up to, with 800 revs/min
After stirring is impregnated 3.5 hours, filtering after rinsing 4 times repeatedly with distilled water, is placed in vacuum drying oven, and temperature control is done to 88 degrees Celsius
It after dry 18 hours, is placed in pulverizer and crushes, cross 300 mesh sieve；
(b) triethanolamine and 3.5% for being equivalent to its weight 4.5% are added into step (a) treated coconut shell flour
After dibutyl tin laurate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 50 minutes to get.
Silane coupling agent is 3- aminopropyl trimethoxysilanes and gamma-mercaptopropyltriethoxysilane according to mass ratio 1:1
Mixing composition.
Bacteriostatic agent is 1,2- benzisothiazole-3-ketones.
Antiaging agent is four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2-
Hydroxyl -4- n-octyloxy dibenzyl ketone is according to mass ratio 2:1:1 mixing composition.
Further include a kind of preparation method of the garden handrail material containing modified coconut shell flour, specifically, packet in the present embodiment
Include following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nanometer
Yttrium oxide and being added in blender stirs, and after five minutes, silane coupling agent is added in stirring, continues stirring 14 minutes, obtains mixture
1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control
To 65 degrees Celsius, incorporation time is 3 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues 8 points of mixing
Clock obtains mixed material 2, and mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get the garden containing modified coconut shell flour
Woods railing material.
The extrusion temperature of double screw extruder is 200 degrees Celsius in step (3), and screw speed is 80 revs/min
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (8)
1. a kind of garden handrail material containing modified coconut shell flour, which is characterized in that include the raw material of following parts by weight：Polypropylene
30-40 parts, modified 40-50 parts of coconut shell flour, 8-15 parts of precipitated calcium carbonate, 6-12 parts of wollastonite in powder, 5-12 parts of glass fibre, Hai Pao
4-9 parts of stone, 4-9 parts of nano-titanium dioxide, 3-6 parts of nano yttrium oxide, 1.5-3 parts of silane coupling agent, 1.2-2.5 parts of bacteriostatic agent and
1.2-2.5 parts of antiaging agent；
The preparation method of the modified coconut shell flour is：(a) coconut shell flour is put into the oxalic acid solution liquid of concentration 20-60 grams per liters, is risen
Temperature is to 40-50 degrees Celsius, and after being impregnated 2-4 hours with 600-800 revs/min of stirring, filtering is rinsed 3-5 times repeatedly with distilled water
Afterwards, it is placed in vacuum drying oven, temperature control is to 80-90 degrees Celsius, after 15-20 hours dry, be placed in pulverizer and crush, mistake
100-300 mesh sieves；(b) triethanolamine and 2- for being equivalent to its weight 3-5% are added into step (a) treated coconut shell flour
After 4% dibutyl tin laurate is uniformly mixed, be placed in ultrasonic dispersing machine, dispersion 30-60 minutes to get.
2. the garden handrail material according to claim 1 containing modified coconut shell flour, which is characterized in that including following weight
The raw material of part：33-37 parts of polypropylene, modified 43-47 parts of coconut shell flour, 10-13 parts of precipitated calcium carbonate, 8-10 parts of wollastonite in powder, glass
8-10 parts of glass fiber, 6-7 parts of sepiolite, 6-7 parts of nano-titanium dioxide, 4-5 parts of nano yttrium oxide, 2-2.5 parts of silane coupling agent,
1.8-2.1 parts of 1.7-2 parts of bacteriostatic agent and antiaging agent.
3. the garden handrail material according to claim 1 containing modified coconut shell flour, which is characterized in that including following weight
The raw material of part meter：35 parts of polypropylene, modified 46 parts of coconut shell flour, 12 parts of precipitated calcium carbonate, 9 parts of wollastonite in powder, 9 parts of glass fibre,
6.5 parts of sepiolite, 6.5 parts of nano-titanium dioxide, 4.5 parts of nano yttrium oxide, 2.2 parts of silane coupling agent, 1.8 parts of bacteriostatic agent and anti-
2 parts of aging agent.
4. the garden handrail material according to claim 1 containing modified coconut shell flour, which is characterized in that described silane coupled
Agent be vinyltriethoxysilane, 3- aminopropyl trimethoxysilanes and one kind in gamma-mercaptopropyltriethoxysilane or
Several combinations.
5. the garden handrail material according to claim 1 containing modified coconut shell flour, which is characterized in that the bacteriostatic agent is
1,2- benzisothiazole-3-ketones, 2,4,5,6- daconil Ms and one kind or several in benzimidazole methyl carbamate
Kind combines.
6. the garden handrail material according to claim 1 containing modified coconut shell flour, which is characterized in that the antiaging agent
For four (β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid) pentaerythritol ester, phosphite and 2- hydroxyl -4- n-octyloxies two
Benzyl ketone is according to mass ratio 2:1:1 mixing composition.
7. a kind of preparation method of garden handrail material containing modified coconut shell flour as described in claim 1-6 any one,
It is characterized by comprising the following steps：
(1) raw material is weighed according to the parts by weight of the garden handrail material feedstock containing modified coconut shell flour；
It (2) will modified coconut shell flour, precipitated calcium carbonate, wollastonite in powder, glass fibre, sepiolite, nano-titanium dioxide, nano oxidized
Yttrium and being added in blender stirs, and after stirring 3-6 minute, silane coupling agent is added, continues to stir 10-15 minutes, must mix
Material 1；
(3) mixed material 1 made from step (2) is mixed to be added to polypropylene and is mixed in high-speed mixer, temperature control to 50-
70 degrees Celsius, incorporation time is 2-3 minutes, then bacteriostatic agent and antiaging agent are added into high-speed mixer, continues to mix 5-10
Minute, mixed material 2 is obtained, mixed material 2 is added twin-screw extrude and carries out extruding pelletization to get containing modified coconut shell flour
Garden handrail material.
8. the preparation method of the garden handrail material according to claim 7 containing modified coconut shell flour, which is characterized in that institute
The extrusion temperature for stating double screw extruder in step (3) is 190-210 degrees Celsius, and screw speed is 70-90 revs/min.
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Application publication date: 20180821 |