CN109776903A - A kind of sand plastic composite materials and preparation method with release electronegative ion - Google Patents
A kind of sand plastic composite materials and preparation method with release electronegative ion Download PDFInfo
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Abstract
The present invention provides a kind of sand plastic composite materials with release electronegative ion, anion-generating material is dispersed in sand plastic composite materials, solves the problem of the effect of anion-generating material setting is easy to fall off and is worn on the surface of the material, pollutes, material is caused to lose excitation anion in the prior art.In addition, environmentally friendly sand plastic composite materials of the invention, extend the function of existing sand plastic composite materials, expand the use scope of sand plastic composite materials；Anion excitation material is supported on magnesium aluminate spinel, avoid the reunion of anion excitation material, can be more uniform be dispersed in sand plastic composite materials, improve the whole uniformity of material, the probability that anion excitation material is contacted with vapor or air is increased, excites generation anion to provide the environment of good excitation anion for anion-generating material.
Description
Technical field
The present invention relates to field of compound material, belong to a kind of sand modeling composite wood that purification gas is realized by generating anion
Material.
Background technique
It is well known that will use a large amount of coating and adhesive during the finishing in house, and coating and adhesive
In can usually contain a large amount of formaldehyde.It will lead to that indoor air formaldehyde content is exceeded in this way, to cause the damage to human body.Mesh
The preceding common method for removing indoor formaldehyde pernicious gas is mainly physical method and chemical method.Wherein physical method is to use
The porous materials such as active carbon adsorb indoor formaldehyde gas, to realize the effect for reducing indoor harmful gas content.But
It is this quadrat method, due to the limited sorption capacity of active carbon, so the removing of PARA FORMALDEHYDE PRILLS(91,95) is not highly desirable.Chemical method is main
It is to have reached the effect for removing the harmful substances such as indoor formaldehyde by using chemical reagent such as formaldehyde scavengers.But this kind of side
Although method can timely remove the formaldehyde in room air, the formaldehyde being adsorbed in construction material can not be removed.
Since the mode of above-mentioned removing indoor formaldehyde is all there are biggish defect, and then research is removed indoor first by people
On the directional steering of aldehyde finishing material.For example, Chinese patent literature CN104895285A discloses a kind of PVC wood plastic compoundly
Plate, this method are that scratch resistance antimicrobial paint surface layer and anion reaction lacquer painting are from top to bottom successively coated on PVC wood plastic clad plate
Layer and nano water-proof sealant layer.Air or vapor pass through the micropore or hole of scratch resistance antimicrobial paint surface layer, react with anion
The anions excitation material such as negative ion powder contacts in lacquer painting layer, generates anion under the action of these anion excitation materials,
Later by negative ion decomposition formaldehyde in air, to realize the function of removing indoor formaldehyde.Since anion reacts lacquer painting layer
It is set to the surface of PVC wood plastic clad plate, with the extension of use time, the abrasion of lacquer painting is be easy to cause, pollutes and fall off,
To lose the function of removing formaldehyde.
Sand plastic composite materials are a kind of emerging materials, are with sandstone and resin, polyethylene, polypropylene, polyvinyl chloride
It is prepared Deng mixing, then through plastic processings such as extruding, molding, injection moldings.Sand plastic composite materials its not only have it is outer
Table feature beautiful and generous, but also have that hardness is high, good flame resistance, and also there is good anti-corrosion, antibacterial and mothproof etc.
Performance.But be mostly at present the research concentrated on in its bending strength, thermal and insulating performance to the research of sand plastic composite materials,
It is studied in purification gas less.If can prepare it is a kind of with the complex sand moulding material for removing formaldehyde gas, will can
So that sand plastic composite materials are widely used.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome in the prior art anion excitation material overbrushing be overlying on dress
Material surface is repaired, because of the abrasion of coat, is fallen off, so that finishing material is lost the defect for removing the function of formaldehyde, to mention one
Kind has the sand plastic composite materials of release electronegative ion, and further provides the sand plastic composite materials preparation method.
A kind of sand plastic composite materials with release electronegative ion, the raw material including following parts by weight:
25-35 parts of quartz sand, 5-7 parts of anion-generating material, 15-20 parts of acrylic resin, 17-25 parts of polyvinyl resin
With 2-5 parts of coupling agent；The anion-generating material include magnesium aluminate spinel and be supported on the magnesium aluminate spinel bear from
Sub- excitation material.
It preferably, further include pore creating material 0.5-2 in the sand plastic composite materials with release electronegative ion
Part；The pore creating material is made of dehydrated alcohol and ethylene glycol.
Preferably, in the sand plastic composite materials with release electronegative ion, in the pore creating material, anhydrous second
The mass ratio of alcohol and ethylene glycol is (5-7): (1-3).
It preferably, further include 3-5 parts of anti-pollution in the sand plastic composite materials with release electronegative ion
Agent；
The anti-staining agent is the mixture of acetic acid and anti-pollution auxiliary agent, and the anti-pollution auxiliary agent is molybdenum disulfide and anhydrous sorbitol
Aliphatic ester.
Preferably, in the sand plastic composite materials with release electronegative ion, the acetic acid and the anti-pollution
The mass ratio of auxiliary agent is (7-10): (1-3).
Preferably, in the sand plastic composite materials with release electronegative ion, the molybdenum disulfide and dehydration
The mass ratio of Span is (2-4): (9-13).
Preferably, in the sand plastic composite materials with release electronegative ion, the anion-generating material
In, the mass ratio of magnesium aluminate spinel and anion excitation material is (80-100): (1-4).
Preferably, in the sand plastic composite materials with release electronegative ion, the grain of the magnesium aluminate spinel
Diameter is 2-5mm；The anion excitation material is nano-tourmaline.
A method of the sand plastic composite materials with release electronegative ion are prepared, are included the following steps:
(1) Aluminum sol is coated to magnesium aluminate spinel surface, later on it by the spraying of anion excitation material slurries, dried
It is dry, obtain anion-generating material；
Quartz sand, acrylic resin, polyvinyl resin and coupling agent are mixed, under inert gas protection, are heated to
270-350 DEG C, obtain the first slurries；
(2) under stirring, anion-generating material slurries is added in first slurries, the second slurry is obtained
Liquid；
(3) second slurries are placed in mold, pressing mold is cooled to room temperature, demoulding, obtains the sand modeling composite wood
Material.
Preferably, in the preparation method,
Pore creating material, anti-staining agent, anion-generating material and water are mixed, stirred evenly, anion-generating material slurry is obtained
Liquid；
The cooling procedure are as follows:
It is cooled to 220-250 DEG C, keeps the temperature 30-50min, is then cooled to 180-200 DEG C, 30-50min is kept the temperature, drops later
Temperature keeps the temperature 10-30min, is cooled to room temperature to 70-90 DEG C.
Technical solution of the present invention has the advantages that
1. the present invention provides a kind of sand plastic composite materials with release electronegative ion, firstly, anion is occurred
Material is dispersed in sand plastic composite materials, is solved anion-generating material setting in the prior art and is easy to fall off on the surface of the material
And the problem of the effect of being worn, pollute, material is caused to lose excitation anion.In addition, environmentally friendly sand modeling of the invention is compound
Material extends the function of existing sand plastic composite materials, expands the use scope of sand plastic composite materials；
Second, anion excitation material is supported on magnesium aluminate spinel, on the one hand, avoid anion excitation material
Reunite, can be more uniform be dispersed in sand plastic composite materials improves the whole uniformity of material, increase anion
The probability that excitation material is contacted with vapor or air excites generation anion to provide good sharp for anion-generating material
Send out the environment of anion；On the other hand, anion excitation material is supported on magnesium aluminate spinel, is formd with biggish and gas
The anion-generating material of the contact area of body contact further improves anion excitation material and air or vapor
Contact, increases the yield of anion；
2, the sand plastic composite materials with release electronegative ion provided by the invention, are also added with pore creating material, are preparing
When composite material, pore creating material gradually volatilizees from sand plastic composite materials during cooling and shaping, so that several micropores are formed,
It ensures nano-tourmaline in sand plastic composite materials and the contact of air, vapor, and then ensure that nano-tourmaline excites
The amount of anion；
Magnesium aluminate spinel itself also has higher hardness, with quartz sand, acrylic resin, polyvinyl resin for specific ratio
Example compounding makes up and leads to the problem of micropore bring hardness, bending strength decline in sand plastic composite materials, greatly ensure that sand
Plastic composite materials hardness, bending strength and impact strength；
3, the sand plastic composite materials with release electronegative ion provided by the invention, using acetic acid and molybdenum disulfide and mistake
Water Span compounds the anti-staining agent to be formed, and the static content generated in micropore inwall on composite material can be effectively reduced,
Micropore inwall smoothness is improved, the attachment and blocking of dust, micro mist and greasy dirt to micropore are reduced, to ensure that nanometer electricity
Gas stone and air return, the contact of vapor, so enable composite material steadily in the long term inspire anion, and then ensured
The ability of decomposing formaldehyde；Being detected formaldehyde collecting rate can achieve 93.99%；
4. it is provided by the invention have release electronegative ion sand plastic composite materials, select nano-tourmaline as bear from
Sub- excitation material should be Nano grade due to nano-tourmaline, with magnalium while the amount for the generation that ensure that anion
Spinelle, quartz sand, acrylic resin, polyvinyl resin are used in compounding, it is ensured that sand plastic composite materials hardness, bending strength and
Impact strength；It can achieve 127 through detection intensity, bending strength can achieve 210MPa, and impact strength can achieve 57KJ/
m2。
5. it is provided by the invention have release electronegative ion sand plastic composite materials preparation method, now by quartz sand,
Anion-generating material is being added later, not only in the first slurries that acrylic resin, polyvinyl resin and coupling agent are mixed to form
Anion excitation material can be made uniformly to be distributed in material, and can effectively guarantee quartz sand and acrylic resin and
The uniform degree of mixing of polyvinyl resin.
6. leading in this method in the preparation method of the sand plastic composite materials with release electronegative ion provided by the invention
It crosses and gradually cools down, so that sand plastic composite materials form good internal structure, the hardness of sand plastic composite materials is effectively guaranteed
And the uniformity of the distribution of bending strength and micropore.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
For convenient for comparing,
Silane coupling agent used in embodiment 1-5 and comparative example is purchased from union carbide corporation, the U.S., model A-1100
Silane coupling agent KH550.But coupling agent used in the present invention be not limited to it is above-mentioned.
The purchase of nano-tourmaline used in embodiment 3-5 and comparative example is from Lingshou County Hong Zhan mineral products processing factory, product
Entitled nano-tourmaline powder.But nano-tourmaline used in the present invention be not limited to it is above-mentioned.
Negative ion powder used in Examples 1 and 2 is bought from Lingshou County Xin De mining industry processing factory, and name of product is anion
Powder.But negative ion powder used in the present invention be not limited to it is above-mentioned.
Embodiment 1
Present embodiments provide a kind of preparation method of sand plastic composite materials with release electronegative ion, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by negative ion powder, in the case where bath temperature is 40 DEG C, water-bath is super
Sound 10min obtains anion excitation material slurries；
(2) magnesium aluminate spinel that partial size is 2mm is chosen, Aluminum sol is sprayed on magnesium aluminate spinel surface, keeps Aluminum sol equal
Even is coated on magnesium aluminate spinel outer surface, sprays anion excitation material slurries later, dries, obtains at being 200 DEG C in temperature
To anion-generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and negative ion powder is 80:1；The dosage of the Aluminum sol
It is the 5% of magnesium aluminate spinel quality；
(2) quartz sand 25Kg, anion-generating material 5Kg, acrylic resin 15Kg, polyvinyl resin 25Kg and silicon are weighed
Alkane coupling agent KH550 5Kg；
(3) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
270 DEG C are heated to, the first slurries are obtained；
(4) it is that 1:4 is mixed according to mass ratio with water by anion-generating material, stirs evenly, obtain anion and material occurs
Slurry liquid；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；
(5) the second slurries are placed in mold, are cooled to room temperature (25 DEG C), demoulded, obtain sand plastic composite materials A.
Embodiment 2
Present embodiments provide a kind of preparation method of sand plastic composite materials with release electronegative ion, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by negative ion powder, in the case where bath temperature is 40 DEG C, water-bath is super
Sound 10min obtains anion excitation material slurries；
(2) magnesium aluminate spinel that partial size is 3mm is chosen, Aluminum sol is sprayed on magnesium aluminate spinel surface, keeps Aluminum sol equal
Even is coated on magnesium aluminate spinel outer surface, sprays anion excitation material slurries later, dries at 250 DEG C, obtain bearing from
Sub- generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and negative ion powder is 80:4；The dosage of Aluminum sol is magnesium
The 5% of aluminate quality；
(3) quartz sand 35Kg, anion-generating material 7Kg, acrylic resin 20Kg, polyvinyl resin 17Kg, silicon are weighed
Alkane coupling agent KH550 2Kg and pore creating material 0.5Kg；
Wherein, pore creating material is the mixture of dehydrated alcohol and ethylene glycol, and the matter ratio of dehydrated alcohol and ethylene glycol is 5:1；
(3) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
350 DEG C are heated to, the first slurries are obtained；
(4) dehydrated alcohol, ethylene glycol, anion-generating material and water are mixed, is stirred evenly, obtained anion and material occurs
Slurry liquid；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；The amount of the addition of water is 1 times of anion-generating material quality；
(5) the second slurries are placed in mold, are cooled to 220 DEG C, keep the temperature 30min, be then cooled to 200 DEG C, heat preservation
50min is cooled to 70 DEG C later, keeps the temperature 10min, is cooled to room temperature (25 DEG C), demoulds, obtains sand plastic composite materials B.
Embodiment 3
Present embodiments provide a kind of preparation method of sand plastic composite materials with release electronegative ion, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by nano-tourmaline, in the case where bath temperature is 40 DEG C, water-bath
Ultrasonic 10min obtains anion excitation material slurries；
(2) it chooses the magnesium aluminate spinel that partial size is 5mm and Aluminum sol is sprayed on magnesium aluminate spinel surface in sugar coating machine,
So that Aluminum sol is uniformly coated on magnesium aluminate spinel outer surface, sprays anion excitation material slurries later, dried at 300 DEG C
It is dry, obtain anion-generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and nano-tourmaline is 100:1；The dosage of Aluminum sol is
The 5% of magnesium aluminate spinel quality；
(3) quartz sand 30Kg, anion-generating material 6Kg, acrylic resin 19Kg, polyvinyl resin 20Kg, silicon are weighed
Alkane coupling agent KH550 3Kg, pore creating material 2Kg and anti-staining agent 3Kg；
Wherein, pore creating material is the mixture of dehydrated alcohol and ethylene glycol, and the mass ratio of dehydrated alcohol and ethylene glycol is 7:3；
Anti-staining agent is the mixture of acetic acid and anti-pollution auxiliary agent, and the anti-pollution auxiliary agent is molybdenum disulfide and sorbitan fatty acid ester；Second
The mass ratio of acid and anti-pollution auxiliary agent are as follows: 7:1；The mass ratio of molybdenum disulfide and sorbitan fatty acid ester is 2:9；
(4) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
300 DEG C are heated to, the first slurries are obtained；
(5) by dehydrated alcohol, ethylene glycol, anion-generating material, acetic acid, molybdenum disulfide, sorbitan fatty acid ester
It is mixed with water, stirs evenly, obtain anion-generating material slurries；The amount of the addition of water is the 1 of anion-generating material quality
Times；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；
(6) the second slurries are placed in mold, are cooled to 250 DEG C, keep the temperature 50min, be then cooled to 180 DEG C, heat preservation
30min is cooled to 90 DEG C later, keeps the temperature 10min, is cooled to room temperature (25 DEG C), demoulds, obtains sand plastic composite materials C.
Embodiment 4
Present embodiments provide a kind of preparation method of sand plastic composite materials with release electronegative ion, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by nano-tourmaline, in the case where bath temperature is 40 DEG C, water-bath
Ultrasonic 10min obtains anion excitation material slurries；
(2) it chooses the magnesium aluminate spinel that partial size is 4mm and Aluminum sol is sprayed on magnesium aluminate spinel surface in sugar coating machine,
So that Aluminum sol is uniformly coated on magnesium aluminate spinel outer surface, spray anion excitation material slurries later, is 300 DEG C in temperature
Lower drying, obtains anion-generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and nano-tourmaline is 100:4；The dosage of Aluminum sol is
The 5% of magnesium aluminate spinel quality；
(3) quartz sand 31Kg, anion-generating material 7Kg, acrylic resin 16Kg, polyvinyl resin 22Kg, silicon are weighed
Alkane coupling agent KH550 4Kg, pore creating material 1Kg and anti-staining agent 5Kg；
Wherein, pore creating material is the mixture of dehydrated alcohol and ethylene glycol, and the mass ratio of dehydrated alcohol and ethylene glycol is 7:1；
Anti-staining agent is the mixture of acetic acid and anti-pollution auxiliary agent, and the anti-pollution auxiliary agent is molybdenum disulfide and sorbitan fatty acid ester；Second
The mass ratio of acid and anti-pollution auxiliary agent are as follows: 7:3；The mass ratio of molybdenum disulfide and sorbitan fatty acid ester is 2:13；
(4) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
300 DEG C are heated to, the first slurries are obtained；
(5) by dehydrated alcohol, ethylene glycol, anion-generating material, acetic acid, molybdenum disulfide, sorbitan fatty acid ester
It is mixed with water, stirs evenly, obtain anion-generating material slurries；The amount of the addition of water is 1 times of anion-generating material；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；
(6) the second slurries are placed in mold, are cooled to 250 DEG C, keep the temperature 50min, be then cooled to 180 DEG C, heat preservation
30min is cooled to 90 DEG C later, keeps the temperature 10min, is cooled to room temperature (25 DEG C), demoulds, obtains sand plastic composite materials D.
Embodiment 5
Present embodiments provide a kind of preparation method of sand plastic composite materials with release electronegative ion, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by nano-tourmaline, in the case where bath temperature is 40 DEG C, water-bath
Ultrasonic 10min obtains anion excitation material slurries；
(2) it chooses the magnesium aluminate spinel that partial size is 5mm and Aluminum sol is sprayed on magnesium aluminate spinel surface in sugar coating machine,
So that Aluminum sol is uniformly coated on magnesium aluminate spinel outer surface, sprays anion excitation material slurries later, dried at 300 DEG C
It is dry, obtain anion-generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and nano-tourmaline is 93:3；The dosage of Aluminum sol is
The 5% of magnesium aluminate spinel quality；
(3) quartz sand 33Kg, anion-generating material 7Kg, acrylic resin 20Kg, polyvinyl resin 18Kg, silicon are weighed
Alkane coupling agent KH550 4Kg, pore creating material 1.5Kg and anti-staining agent 4Kg；
Wherein, pore creating material is the mixture of dehydrated alcohol and ethylene glycol, and the mass ratio of dehydrated alcohol and ethylene glycol is 6:1；
Anti-staining agent is the mixture of acetic acid and anti-pollution auxiliary agent, and the anti-pollution auxiliary agent is molybdenum disulfide and sorbitan fatty acid ester；Second
The mass ratio of acid and anti-pollution auxiliary agent are as follows: 9:2；The mass ratio of molybdenum disulfide and sorbitan fatty acid ester is 3:11；
(4) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
300 DEG C are heated to, the first slurries are obtained；
(5) by dehydrated alcohol, ethylene glycol, anion-generating material, acetic acid, molybdenum disulfide, sorbitan fatty acid ester
It is mixed with water, stirs evenly, obtain anion-generating material slurries；The amount of the addition of water is the 1 of anion-generating material quality
Times；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；
(6) the second slurries are placed in mold, are cooled to 250 DEG C, keep the temperature 30min, be then cooled to 200 DEG C, heat preservation
30min is cooled to 90 DEG C later, keeps the temperature 30min, is cooled to room temperature (25 DEG C), demoulds, obtains sand plastic composite materials E.
Comparative example
This reality comparative example provides a kind of preparation method of sand plastic composite materials, comprising:
It (1) is that 1:10 is mixed according to mass ratio with deionized water by nano-tourmaline, in the case where bath temperature is 40 DEG C, water-bath
Ultrasonic 10min obtains anion excitation material slurries；
(2) it chooses the magnesium aluminate spinel that partial size is 5mm and Aluminum sol is sprayed on magnesium aluminate spinel surface in sugar coating machine,
So that Aluminum sol is uniformly coated on magnesium aluminate spinel outer surface, sprays anion excitation material slurries later, dried at 300 DEG C
It is dry, obtain anion-generating material；
In anion-generating material, the mass ratio of magnesium aluminate spinel and nano-tourmaline is 93:3；The dosage of Aluminum sol is
The 5% of magnesium aluminate spinel quality；
(3) quartz sand 33Kg, anion-generating material 7Kg, acrylic resin 20Kg, polyvinyl resin 18Kg, silicon are weighed
Alkane coupling agent KH550 4Kg, pore creating material 1.5Kg and anti-staining agent 4Kg；
Wherein, pore creating material is the mixture of dehydrated alcohol and ethylene glycol, and the mass ratio of dehydrated alcohol and ethylene glycol is 6:1；
Anti-staining agent is dimethyl octadecylamine；
(4) quartz sand, acrylic resin, polyvinyl resin and Silane coupling agent KH550 are mixed, under nitrogen protection,
300 DEG C are heated to, the first slurries are obtained；
(5) dehydrated alcohol, ethylene glycol, anion-generating material, dimethyl octadecylamine and water are mixed, stirs evenly, obtains
To anion-generating material slurries；The amount of the addition of water is 1 times of anion-generating material quality；
While stirring, anion-generating material slurries are added in the first slurries, stir 20min, obtain the
Two slurries；
(6) the second slurries are placed in mold, are cooled to 250 DEG C, keep the temperature 30min, be then cooled to 200 DEG C, heat preservation
30min is cooled to 90 DEG C later, keeps the temperature 30min, is cooled to room temperature (25 DEG C), demoulds, obtains sand plastic composite materials F.
Compliance test result
1. a couple sand plastic composite materials A-E is tested for the property, the results are shown in Table 1:
Table 1
| Hardness/HV | Bending strength (MPa) | Impact strength (KJ/m2) | |
| Sand plastic composite materials A | 122 | 206 | 52 |
| Sand plastic composite materials B | 120 | 205 | 51 |
| Sand plastic composite materials C | 124 | 208 | 54 |
| Sand plastic composite materials D | 125 | 207 | 55 |
| Sand plastic composite materials E | 127 | 210 | 57 |
2. " the JCT 2040-2010 anion function indoor decoration material " standard of use, to sand plastic composite materials A-F
It carries out negative aeroion and induces measurement examination, test data is shown in Table 2.
Table 2
| The negative aeroion amount of inducing, a/s.cm2 | |
| Sand plastic composite materials A | 1005 |
| Sand plastic composite materials B | 1150 |
| Sand plastic composite materials C | 1215 |
| Sand plastic composite materials D | 1245 |
| Sand plastic composite materials E | 1275 |
| Sand plastic composite materials F | 675 |
3. couple sand plastic composite materials A-F removes the aptitude tests of formaldehyde, test data is shown in Table 3.
Test method: being cut into 5cm × 5cm × 3cm thin plate for sand plastic composite materials A-F, which is placed in 3 days outdoor
Afterwards, wiped clean thin sheet surface, be placed in the container of 5L, to container vacuum-pumping, backward container be filled with it is dense containing formaldehyde
Spend 15mg/m3Initial testing gas at 25 DEG C of temperature, stand 48h until air pressure restores to 1 atmospheric pressure in container.Later
1L gas is extracted from container, and the gas of extraction is named as termination test gas, and detection terminates the variation of concentration of formaldehyde in gas
Value.
Concentration of formaldehyde is tested according to the prescriptive procedure in standard GB-13197-91, i.e., with a certain amount of absorbing pure water gas
Formaldehyde in body, later with the formaldehyde in spectrophotometric determination water.Formaldehyde collecting rate calculates according to the following equation:
Wherein, A0It is respectively initial testing gas and the absorbance for terminating test gas with Ax.
Table 3
| Formaldehyde collecting rate, % | |
| Sand plastic composite materials A | 90.25% |
| Sand plastic composite materials B | 91.17% |
| Sand plastic composite materials C | 93.48% |
| Sand plastic composite materials D | 93.62% |
| Sand plastic composite materials E | 93.99% |
| Sand plastic composite materials F | 69.12% |
Thin plate is tested after outdoor placement 3 days, the sand plastic composite materials B of anti-staining agent does not remove the ability of formaldehyde obviously not
The ability of formaldehyde is such as removed added with the sand plastic composite materials C-E of anti-staining agent；
Sand plastic composite materials F instead results in the removing formaldehyde of sand plastic composite materials due to using different anti-staining agents
Ability decline.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of sand plastic composite materials with release electronegative ion, which is characterized in that the raw material including following parts by weight:
25-35 parts of quartz sand, 5-7 parts of anion-generating material, 15-20 parts of acrylic resin, 17-25 parts of polyvinyl resin and idol
Agent 2-5 parts of connection；The anion-generating material includes that magnesium aluminate spinel and the anion being supported on the magnesium aluminate spinel swash
Send out material.
2. the sand plastic composite materials with release electronegative ion according to claim 1, which is characterized in that further include making
0.5-2 parts of hole agent；The pore creating material is made of dehydrated alcohol and ethylene glycol.
3. the sand plastic composite materials with release electronegative ion according to claim 2, which is characterized in that the pore-creating
In agent, the mass ratio of dehydrated alcohol and ethylene glycol is (5-7): (1-3).
4. the sand plastic composite materials with release electronegative ion according to claim 1 to 3, which is characterized in that also
Including 3-5 parts of anti-staining agent；
The anti-staining agent is the mixture of acetic acid and anti-pollution auxiliary agent, and the anti-pollution auxiliary agent is molybdenum disulfide and sorbitan fatty
Acid esters.
5. the sand plastic composite materials with release electronegative ion according to claim 4, which is characterized in that the acetic acid
Mass ratio with the anti-pollution auxiliary agent is (7-10): (1-3).
6. the sand plastic composite materials with release electronegative ion according to claim 4 or 5, which is characterized in that described
The mass ratio of molybdenum disulfide and sorbitan fatty acid ester is (2-4): (9-13).
7. wanting any sand plastic composite materials with release electronegative ion of 1-6 according to right, which is characterized in that described
In anion-generating material, the mass ratio of magnesium aluminate spinel and anion excitation material is (80-100): (1-4).
8. -7 any sand plastic composite materials with release electronegative ion according to claim 1, which is characterized in that institute
The partial size for stating magnesium aluminate spinel is 2-5mm；The anion excitation material is nano-tourmaline.
9. a kind of method for preparing any sand plastic composite materials with release electronegative ion of claim 1-8, packet
Include following steps:
(1) Aluminum sol is coated to magnesium aluminate spinel surface, later on it by the spraying of anion excitation material slurries, drying,
Obtain anion-generating material；
Quartz sand, acrylic resin, polyvinyl resin and coupling agent are mixed, under inert gas protection, are heated to 270-350
DEG C, obtain the first slurries；
(2) under stirring, anion-generating material slurries is added in first slurries, the second slurries are obtained；
(3) second slurries are placed in mold, pressing mold is cooled to room temperature, and demoulding obtains the sand plastic composite materials.
10. preparation method according to claim 9, which is characterized in that
Pore creating material, anti-staining agent, anion-generating material and water are mixed, stirs evenly, obtains anion-generating material slurries；
The cooling procedure are as follows:
It is cooled to 220-250 DEG C, keeps the temperature 30-50min, is then cooled to 180-200 DEG C, 30-50min is kept the temperature, is cooled to later
70-90 DEG C, 10-30min is kept the temperature, is cooled to room temperature.
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