CN106188644B - A kind of automobile interior exterior decorations environment-friendly antibacterial plastics and preparation method thereof - Google Patents
A kind of automobile interior exterior decorations environment-friendly antibacterial plastics and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/04—Starch derivatives, e.g. crosslinked derivatives
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The present invention relates to automobile interior exterior decorations technical field of function materials, a kind of automobile interior exterior decorations environment-friendly antibacterial plastics and preparation method thereof are specifically disclosed.The plastics are mainly prepared from the following materials：20 ~ 40 parts of resin binder, 90 ~ 110 parts of starch, 0.3 ~ 3 part of acids starch conversion auxiliary agent, 1 ~ 10 part of esters starch conversion auxiliary agent, 0.2 ~ 3 part of compound bio enzyme catalyst of starch conversion, 5 ~ 15 parts of fire retardant, 2 ~ 3 parts of solubilizer, 10 ~ 15 parts of hydroxyethyl cellulose, 5 ~ 10 parts of coupling agent, 1 ~ 2 part of nano zine oxide, 2 ~ 5 parts of organic antibacterial agent, 20 ~ 25 parts of Nano chitosan, 10 ~ 15 parts of nano titanium oxide, 90 ~ 110 parts of dispersant.The present invention by Nano chitosan and nano titanium oxide by adsorbing and being attached to frosting, and assigning plastics has excellent anti-microbial property, air cleaning performance and anti-fouling and self-cleaning performance.
Description
Technical field
The present invention relates to automobile interior exterior decorations technical field of function materials, and in particular to a kind of automobile interior exterior decorations are anti-with environmental protection
Bacterium plastics and preparation method thereof.
Background technology
With the development of modern automobile industry, the application percentage more and more higher of plastics in the car, especially with driver
The inside gadget being in the most contact.The quality problems of in-car air are more and more of interest by society, and having of producing in recent years
In the environmentally friendly event for closing in-vehicle air pollution, wherein and have no lack of some world-famous main engine plants, for this present situation, country is
Through having made the professional standard of correlation i.e.《Air Quality Evaluation guide in passenger car》, to tackle increasingly serious in-car ring
Border pollution problem.And in order to solve the pollution problem of car room, environmentally friendly work(of the people also for automobile interior exterior decorations material
Energy property is innovated and improved, and such as reduces release, the anti-flammability of raising material of automobile interior exterior decorations material volatile organic matter
Energy etc., the degradability for improving material etc..For example, occurring in that the substantial amounts of replacement tradition by base-material of starch granules at present
Fluoropolymer resin base-material prepare plastics, to improve the degradability of plastics, but be due to the limitation of starch granules itself,
The performances such as toughness, the intensity of the plastics that prepare are caused to meet the use requirement of automobile interior exterior decorations.Such as Chinese patent
CN103724967A discloses a kind of automotive upholstery fire retardation PC/ABS intermingling materials and preparation method thereof, with PC and ABS trees
Fat compounding improves the mobility of melt in plastic processes as base-material, improves the processing characteristics of intermingling material, but the public affairs
The subject matter that the intermingling material opened is solved is introducing halogen-free flame retardants, and reduction material produces a large amount of poisonous serious after combustion
The purification function of the very big potential safety hazard brought to occupant, the antibiotic property of the material and in-car air still can not meet people
For automotive interior/exterior material it is higher and higher require.
Therefore, studied and innovated with the antibiotic property and air-cleaning function of plastics for automobile interior exterior decorations, become
The developing direction of current automobile interior exterior decorations plastics.
The content of the invention
In order to overcome the defect of prior art, an object of the present invention is to provide a kind of automobile interior exterior decorations environment-friendly antibacterial
Plastics, with excellent anti-microbial property, air cleaning performance and anti-fouling and self-cleaning performance, and with degradability, mechanical performance and
Every environmental protection index is excellent.
Meanwhile, the present invention, which is also resided in, provides a kind of preparation method of automobile interior exterior decorations environment-friendly antibacterial plastics, improves plastics
Anti-microbial property and air-cleaning function.
In order to realize the above object the technical solution adopted in the present invention is：
A kind of automobile interior exterior decorations use environment-friendly antibacterial plastics, are mainly prepared from by the raw material of following parts by weight：Resin base
20 ~ 40 parts of material, 90 ~ 110 parts of starch, 0.3 ~ 3 part of acids starch conversion auxiliary agent, 1 ~ 10 part of esters starch conversion auxiliary agent, starch change
Property with 0.2 ~ 3 part of compound bio enzyme catalyst, 5 ~ 15 parts of fire retardant, 2 ~ 3 parts of solubilizer, 10 ~ 15 parts of hydroxyethyl cellulose, coupling
5 ~ 10 parts of agent, 1 ~ 2 part of nano zine oxide, 2 ~ 5 parts of organic antibacterial agent, 20 ~ 25 parts of Nano chitosan, nano titanium oxide 10 ~ 15
Part, 90 ~ 110 parts of dispersant.
Also include the raw material of following parts by weight：0.1 ~ 0.5 part of light stabilizer, 0.1 ~ 0.5 part of antioxidant.
The nano titanium oxide is rutile type nano titanic oxide and nanometer anatase titania according to 5：2 matter
Measure the mixture of ratio.Rutile type nano titanic oxide is different with the fermi level of nanometer anatase titania, and both compound,
Nano titanium oxide is improved to the absorption property of volatile contaminant in the air, Photocatalytic Degradation Property to pollutant, automatic
Non-toxic performance, antibacterial sterilization performance, anti-fog performance, anti-fouling and self-cleaning performance and UV absorbing properties.
The resin binder is made up of the raw material of following parts by weight：10 ~ 20 parts of PC resin, 5 ~ 10 parts of ABS resin, ASA
5 ~ 10 parts of resin.Compounded, be used in combination with starch base using three kinds of resin binders, the plastics for overcoming starch base to prepare
Mechanical strength can not meet the defect of use requirement, strengthen the mechanical strength of starch, and three kinds of resin binder compounding uses, gram
The defect of plastics prepared by single resin binder is taken, improves the mobility in plastics preparation process, the processability of plastics is improved
Can, while improving scratch resistance, chemical-resistant, heat distortion temperature, weatherability and the glossiness of the plastics prepared.
The fire retardant is halogen-free flame retardants.
The solubilizer is constituting by the raw material of following mass ratio：Maleic anhydride stem grafting polyolefin：Styrene-second
Alkene/propylene-based block copolymer=1：2.Using the solubilizer of compounding, the performance blended between the resin binder of compounding is improved,
Improve the processing characteristics and crudy of plastics.
The coupling agent is made up of the raw material of following mass ratio：Titanate coupling agent：Rare-earth coupling agent=2：1.Using multiple
The coupling agent matched somebody with somebody improves the processing characteristics and mechanical performance of plastics.
The organic antibacterial agent is made up of the raw material of following mass ratio：3 methyl 4 isopropyl phenol：Para hydroxybenzene first
Acid esters：N-（Fluorine dichloromethyl sulphur）Metatitanic acid imines：Methylene cyanate ester=1：2：1：3.Using the organic antibacterial agent and nanometer of compounding
Zinc oxide compounding use is compounded in the inside of plastics, improves the anti-microbial property of plastics inner, improves the performance of plastics, extension
The service life of plastics.
The dispersant is made up of the raw material of following mass ratio：Mass concentration is 3% polyvinyl alcohol water solution：Quality
Concentration is the 2% CH-18 hyper-dispersants aqueous solution=2：1.Using the dispersant of the compounding, nano titanium oxide is improved in nanoshell
Dispersion stabilization and uniformity in glycan acetic acid solution, and then enable nano titanium oxide uniform adsorption in Nano chitosan
Surface, and then frosting is uniformly attached to, improve antibiotic property, air cleaning and the antifouling auto purification performance of frosting.
The acids starch conversion auxiliary agent is one kind or one kind in adipic acid, tartaric acid, laurate, stearic acid, oleic acid
Any of the above mixture；The starch conversion is alpha-amylase, glucoamylase, acidic protein with compound bio enzyme catalyst
Two or more any mixture in enzyme, lipase, cellulase, glucose oxidase, nitrile hydratase；The esters
Starch conversion auxiliary agent is the one or more in butyl stearate, ATBC, di-2-ethylhexyl maleate, sorbitol ester
Any mixture.
The light stabilizer is O-hydroxyl-diphenyl ketone class stabilizer, organic nickel chelate stabilizer and hindered amine light stabilizer
The mixture of agent.The antioxidant is the mixture of antioxidant CA, antioxidant DNP and antioxidant 264.
The preparation method of above-mentioned automobile interior exterior decorations environment-friendly antibacterial plastics, including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Starch is taken, acids starch conversion auxiliary agent and starch conversion compound bio enzymatic is added
Agent, sprays into the water of 2 ~ 6 parts by weight, and normal temperature and pressure mechanical agitation dry process reaction adds esters starch conversion auxiliary agent after 1 ~ 2 hour,
Be warming up to 80 DEG C ~ 180 DEG C reaction 30 ~ 40 minutes after, adjust pH=6 ~ 8, stop heating and stir, produce modified starch after cooling；
b：Preparation of nano antiseptic soak：Take Nano chitosan to be dissolved in acetic acid solution, obtain Nano chitosan solution；Take
Nano titanium oxide is added in dispersant, obtains nano titanium oxide dispersion；Nano titanium oxide dispersion is added into nanoshell
In glycan solution, pH=8 ~ 9 are adjusted, heating water bath is to 50 ~ 65 DEG C, stirring shear-mixed 30 ~ 50 minutes obtains nano antibacterial agent leaching
Steep liquid；
2）Prepare plastics embryo material：Take resin binder, modified starch, fire retardant, solubilizer, hydroxyethyl cellulose, coupling agent,
After nano zine oxide and organic antibacterial agent are well mixed, extrusion molding after melt blending in double screw extruder is added, modeling is produced
Expect embryo material；
3）Post processing：By step 2）The plastics embryo material of preparation is soaked into step 1）The nano antibacterial agent soak of middle preparation
In, heating water bath is to 50 DEG C ~ 65 DEG C, after soaking 1 ~ 2 hour, takes out plastics embryo material, dries, and produces described automobile interior exterior decorations use
Environment-friendly antibacterial plastics.
In above-mentioned preparation method, by the way that nano titanium oxide to be dispersed in Nano chitosan solution in the presence of dispersant
In, and the plastics embryo material of preparation is immersed in the Nano chitosan solution of nano titanium oxide so that Nano chitosan is inhaled
Attached nano titanium oxide so with the functional groups on plastics embryo material surface, be attached to the surface of plastics embryo material, or pass through from
The suction-operated absorption of body is on the surface of plastics embryo material, and improving the anti-microbial property of plastics, and assign plastics has excellent sky
Gas purifying property and anti-fouling and self-cleaning function.Other above-mentioned preparation method promotes nanometer two by limiting the temperature and time soaked
Titanium oxide and Nano chitosan are attached to frosting, it is ensured that the steady quality of prepared plastics.
Step 2）Described in melt blending temperature be 160 DEG C ~ 185 DEG C.
Automobile interior exterior decorations of the present invention use environment-friendly antibacterial plastics, using starch as primary raw material, and are changed by adding acids starch
Property auxiliary agent and esters starch conversion auxiliary agent, make starch in the presence of biological complex enzyme catalyst, be denatured, enhancing starch with
The amalgamation of resin binder, and then raising prepares the mechanical performance of plastics；Meanwhile, hydroxyethyl cellulose and coupling agent and solubilizer
It is used in combination, improves the processing characteristics and mechanical performance of plastics；In addition, Nano chitosan and nano titanium oxide are used in combination,
It is dispersed in nano titanium oxide is uniform and stable by the effect of dispersant in Nano chitosan solution, it is then poly- by nanoshell
The absorption property of sugar and nano titanium oxide itself, both mutually adsorb combination, when the plastics embryo material of the present invention is immersed in nanometer
It is plastics embryo material surface exposure prepared by main base by modified starch when in the Nano chitosan solution of titanium dioxide
Starch conversion group is combined with Nano chitosan and then nano titanium oxide is attached into frosting, at the same Nano chitosan and
Nano titanium oxide itself has certain absorption property, in immersion process, plastics embryo material adsorption nano titanium oxide
And Nano chitosan, the Nano chitosan for being attached to frosting by functional groups and adsorption function has good antibacterial
Performance, nano titanium oxide not only has good anti-microbial property, also with to the absorption property of volatile contaminant in air,
Photocatalytic Degradation Property, automatic Non-toxic performance, antibacterial sterilization performance, anti-fog performance, anti-fouling and self-cleaning performance to pollutant and
UV absorbing properties.Therefore, Nano chitosan and nano titanium oxide are with the use of the anti-microbial property for improving the plastics prepared
While, making the plastics of preparation has good air cleaning performance and self-cleaning function.
The preparation method of automobile interior exterior decorations environment-friendly antibacterial plastics of the present invention, it is easy to operate, it is easy to control, suitable for industrialization
Popularization and application.
Embodiment
Technical scheme is described in detail below by specific embodiment.
Embodiment 1
A kind of automobile interior exterior decorations use environment-friendly antibacterial plastics, are mainly prepared from by the raw material of following parts by weight：PC resin
15 parts, 7 parts of ABS resin, 7 parts of ASA resin, 100 parts of starch, 2 parts of tartaric acid, 5 parts of butyl stearate, 2 parts of glucoamylase,
0.5 part of cellulase, 10 parts of halogen-free flame retardants, 0.8 part of maleic anhydride grafted polyethylene, styrene-ethylene/polypropylene block copolymerization
1.6 parts of thing, 12 parts of hydroxyethyl cellulose, 5 parts of titanate coupling agent, 2.5 parts of rare-earth coupling agent, 1.5 parts of nano zine oxide, 3- first
0.5 part of base -4- isopropyl-phenols, to 1 part of hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）0.5 part of metatitanic acid imines, methylene cyanogen
70 parts of polyvinyl alcohol water solution, matter that 1.5 parts of acid esters, 23 parts of Nano chitosan, 12 parts of nano titanium oxide, mass concentration are 3%
Measure 35 parts of the CH-18 hyper-dispersants aqueous solution that concentration is 2%；Wherein nano titanium oxide be rutile type nano titanic oxide with
Nanometer anatase titania is according to 5：The mixture of 2 mass ratio.
The preparation method of above-mentioned automobile interior exterior decorations environment-friendly antibacterial plastics, including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Take starch to be put into batch mixer, add tartaric acid, glucoamylase and cellulase,
The water of 5 parts by weight is sprayed into, normal temperature and pressure mechanical agitation dry process reaction adds butyl stearate, be warming up to 130 DEG C after 1.5 hours
After reaction 35 minutes, pH=7 are adjusted, stops heating and stirs, modified starch is produced after cooling；
b：Preparation of nano antiseptic soak：Take Nano chitosan to be dissolved in acetic acid solution, obtain Nano chitosan solution；Take
The CH-18 hyper-dispersant aqueous solution mixed preparing dispersants that the polyvinyl alcohol water solution that mass concentration is 3% is 2% with mass concentration
Solution, then nano titanium oxide is added in dispersant solution, obtain nano titanium oxide dispersion；By nano titanium oxide point
Dispersion liquid is added in Nano chitosan solution, adjusts pH=8, and heating water bath is to 60 DEG C, and stirring shear-mixed 40 minutes obtains nanometer and resisted
Microbial inoculum soak；
2）Prepare plastics embryo material：Take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride
Grafted polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, receive
Rice zinc oxide, 3 methyl 4 isopropyl phenol, to hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）Metatitanic acid imines, methylene cyanogen
After acid esters is well mixed, extrusion molding after 170 DEG C of melt blendings in double screw extruder is added, plastics embryo material is produced；
3）Post processing：By step 2）The plastics embryo material of preparation is soaked into step 1）The nano antibacterial agent soak of middle preparation
In, heating water bath is to 60 DEG C, after soaking 1.5 hours, takes out plastics embryo material, dries, and produces described automobile interior exterior decorations environmental protection
Antibiotic plastic.
Embodiment 2
A kind of automobile interior exterior decorations use environment-friendly antibacterial plastics, are mainly prepared from by the raw material of following parts by weight：PC resin
10 parts, 5 parts of ABS resin, 5 parts of ASA resin, 90 parts of starch, 0.3 part of laurate, 5 parts of lemon dibutyl phthalate, alpha-amylase 0.1
Part, 0.1 part of lipase, 5 parts of halogen-free flame retardants, 0.7 part of maleic anhydride grafted polyethylene, styrene-ethylene/polypropylene block copolymerization
1.4 parts of thing, 10 parts of hydroxyethyl cellulose, 4 parts of titanate coupling agent, 2 parts of rare-earth coupling agent, 1 part of nano zine oxide, 3- methyl-
0.3 part of 4- isopropyl-phenols, to 0.6 part of hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）0.3 part of metatitanic acid imines, methylene cyanogen
60 parts of polyvinyl alcohol water solution, matter that 0.9 part of acid esters, 20 parts of Nano chitosan, 10 parts of nano titanium oxide, mass concentration are 3%
It is 2% 30 parts of the CH-18 hyper-dispersants aqueous solution, 1 part of light stabilizer, 1 part of antioxidant to measure concentration；Wherein nano titanium oxide
It is rutile type nano titanic oxide and nanometer anatase titania according to 5：The mixture of 2 mass ratio；Light stabilizer is
Mass ratio is O-hydroxyl-diphenyl ketone class stabilizer：Organic nickel chelate stabilizer：Hindered amine as light stabilizer=1：1：1 mixing
Thing；Antioxidant is antioxidant CA：Antioxidant DNP：Antioxidant 264=1：2：1 mixture.
The preparation method of above-mentioned automobile interior exterior decorations environment-friendly antibacterial plastics, including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Take starch to be put into batch mixer, add tartaric acid, glucoamylase and cellulase,
The water of 2 parts by weight is sprayed into, normal temperature and pressure mechanical agitation dry process reaction adds butyl stearate after 1.5 hours, heat up 80 DEG C of reactions
After 40 minutes, pH=6 are adjusted, stops heating and stirs, modified starch is produced after cooling；
b：Preparation of nano antiseptic soak：Take Nano chitosan to be dissolved in acetic acid solution, obtain Nano chitosan solution；Take
The CH-18 hyper-dispersant aqueous solution mixed preparing dispersants that the polyvinyl alcohol water solution that mass concentration is 3% is 2% with mass concentration
Solution, then nano titanium oxide is added in dispersant solution, obtain nano titanium oxide dispersion；By nano titanium oxide point
Dispersion liquid is added in Nano chitosan solution, adjusts pH=9, and heating water bath is to 50 DEG C, and stirring shear-mixed 50 minutes obtains nanometer and resisted
Microbial inoculum soak；
2）Prepare plastics embryo material：Take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride
Grafted polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, receive
Rice zinc oxide, 3 methyl 4 isopropyl phenol, to hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）Metatitanic acid imines, methylene cyanogen
After acid esters, light stabilizer, antioxidant are well mixed, extrusion molding after 160 DEG C of melt blendings in double screw extruder is added, i.e.,
Obtain plastics embryo material；
3）Post processing：By step 2）The plastics embryo material of preparation is soaked into step 1）The nano antibacterial agent soak of middle preparation
In, heating water bath is to 50 DEG C, after soaking 2 hours, takes out plastics embryo material, dries, and produces described automobile interior exterior decorations environmental protection and resists
Bacterium plastics.
Embodiment 3
A kind of automobile interior exterior decorations use environment-friendly antibacterial plastics, are mainly prepared from by the raw material of following parts by weight：PC resin
20 parts, 10 parts of ABS resin, 10 parts of ASA resin, 110 parts of starch, 3 parts of oleic acid, 10 parts of sorbitol ester, 2 parts of glucose oxidase,
1 part of acid protease, 15 parts of halogen-free flame retardants, 1 part of maleic anhydride grafted polyethylene, styrene-ethylene/propylene-based block copolymer
2 parts, 15 parts of hydroxyethyl cellulose, 6 parts of titanate coupling agent, 3 parts of rare-earth coupling agent, 2 parts of nano zine oxide, 3- methyl -4- it is different
0.7 part of propylphenol, to 1.4 parts of hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）0.7 part of metatitanic acid imines, methylene cyanate
2.1 parts, 25 parts of Nano chitosan, 15 parts of nano titanium oxide, mass concentration for 3% 72 parts of polyvinyl alcohol water solution, quality it is dense
Spend 34 parts of the CH-18 hyper-dispersants aqueous solution for 2%；Wherein nano titanium oxide is rutile type nano titanic oxide and rutile titania
Type nano titanium oxide is according to 5：The mixture of 2 mass ratio.
The preparation method of above-mentioned automobile interior exterior decorations environment-friendly antibacterial plastics, including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Take starch to be put into batch mixer, add tartaric acid, glucoamylase and cellulase,
The water of 6 parts by weight is sprayed into, normal temperature and pressure mechanical agitation dry process reaction adds butyl stearate after 2 hours, be warming up to 180 DEG C instead
Answer after 30 minutes, adjust pH=8, stop heating and stir, modified starch is produced after cooling；
b：Preparation of nano antiseptic soak：Take Nano chitosan to be dissolved in acetic acid solution, obtain Nano chitosan solution；Take
The CH-18 hyper-dispersant aqueous solution mixed preparing dispersants that the polyvinyl alcohol water solution that mass concentration is 3% is 2% with mass concentration
Solution, then nano titanium oxide is added in dispersant solution, obtain nano titanium oxide dispersion；By nano titanium oxide point
Dispersion liquid is added in Nano chitosan solution, adjusts pH=8, and heating water bath is to 65 DEG C, and stirring shear-mixed 30 minutes obtains nanometer and resisted
Microbial inoculum soak；
2）Prepare plastics embryo material：Take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride
Grafted polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, receive
Rice zinc oxide, 3 methyl 4 isopropyl phenol, to hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）Metatitanic acid imines, methylene cyanogen
After acid esters is well mixed, extrusion molding after 185 DEG C of melt blendings in double screw extruder is added, plastics embryo material is produced；
3）Post processing：By step 2）The plastics embryo material of preparation is soaked into step 1）The nano antibacterial agent soak of middle preparation
In, heating water bath is to 65 DEG C, after soaking 1 hour, takes out plastics embryo material, dries, and produces described automobile interior exterior decorations environmental protection and resists
Bacterium plastics.
Comparative example 1
A kind of automobile interior exterior decorations plastics, are mainly prepared from by the raw material of following parts by weight：15 parts of PC resin, ABS
7 parts of resin, 7 parts of ASA resin, 100 parts of starch, 2 parts of tartaric acid, 5 parts of butyl stearate, 2 parts of glucoamylase, cellulase
0.5 part, 10 parts of halogen-free flame retardants, 0.8 part of maleic anhydride grafted polyethylene, 1.6 parts of styrene-ethylene/propylene-based block copolymer,
12 parts of hydroxyethyl cellulose, 5 parts of titanate coupling agent, 2.5 parts of rare-earth coupling agent, 1.5 parts of nano zine oxide, 3- methyl -4- are different
0.5 part of propylphenol, to 1 part of hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）0.5 part of metatitanic acid imines, methylene cyanate 1.5
Part, 23 parts of Nano chitosan, 12 parts of nano titanium oxide；Wherein nano titanium oxide is rutile type nano titanic oxide.
The preparation method of this comparative example automobile interior exterior decorations plastics, including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Take starch to be put into batch mixer, add tartaric acid, glucoamylase and cellulase,
The water of 5 parts by weight is sprayed into, normal temperature and pressure mechanical agitation dry process reaction adds butyl stearate, be warming up to 130 DEG C after 1.5 hours
After reaction 35 minutes, pH=7 are adjusted, stops heating and stirs, modified starch is produced after cooling；
2）Prepare plastics embryo material：Take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride
Grafted polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, receive
Rice zinc oxide, 3 methyl 4 isopropyl phenol, to hydroxyl this formic acid esters, N-（Fluorine dichloromethyl sulphur）Metatitanic acid imines, methylene cyanogen
After acid esters, Nano chitosan, nano titanium oxide are well mixed, add in double screw extruder and extruded after 170 DEG C of melt blendings
Shaping, produces described automobile interior exterior decorations plastics.
Test example
1st, anti-microbial property contrast test：
Test method：It is divided to two groups of experiments, takes staphylococcus aureus and Escherichia coli to be coated on M-H trainings in every group of experiment
Base is supported, automobile interior exterior decorations prepared by one of which Example 1 are affixed on media surface with environment-friendly antibacterial plastics, and another set takes
Automobile interior exterior decorations prepared by comparative example 1 are affixed on media surface with plastics, are then respectively placed in 37 DEG C of constant incubators and are trained
Support, result is observed after 48 hours, plastics prepared by Statistics Implementation example 1 and comparative example 1 are to staphylococcus aureus and Escherichia coli
Antibacterial effect, as a result show, embodiment 1 prepare plastics 90% is reached to the antibiotic rate of staphylococcus aureus, to large intestine bar
The antibiotic rate of bacterium reaches 95%；And plastics prepared by comparative example 1 are only 70% to the antibiotic rate of staphylococcus aureus, to large intestine bar
The antibiotic rate of bacterium is only 78%.
Existed by the results showed that present invention by combining and adhering to absorption by Nano chitosan and nano titanium oxide
The mode of frosting, and optimize the proportioning of nano titanium oxide different crystal forms simultaneously, improve the anti-microbial property of plastics.
2nd, anti-fouling and self-cleaning performance contrast test：
Test method：The plastics that respectively prepared by Example 1 and comparative example 1, soy sauce is sprayed on its surface respectively, places 30
After minute, wiped with rag, observe the cleaning situation of two kinds of frosting dirts, as a result show, the frosting of embodiment 1
The soy sauce of sprinkling can be wiped out easily after placing 30 minutes with rag, will not be adhered in frosting, and comparative example 1 is moulded
Expect the soy sauce of surface sprinkling after mode 30 minutes in immersion plastics, it is difficult to remove, it is necessary to by special cleaning products ability
Remove.The reason is that prepared by the embodiment of the present invention 1, plastics are combined in frosting and attachment nano titanium oxide causes for analysis
The hydrophilicity that frosting has had so that the pollutant such as greasy dirt is difficult to be attached to its surface, making the plastics of preparation has one
Fixed anti-fouling and self-cleaning performance.
3rd, air cleaning performance comparison test：
Test method：It is divided to two groups of experiments, takes the unit of plastic of 30 pieces of 10cm × 10cm sizes to be suspended on UV in every group of experiment
In ultraviolet radiation reaction chamber, the beaker that will be equipped with formalin is also placed in reaction chamber, seals reaction chamber, treats formaldehyde volatilization one
The section time, make that there is certain density formaldehyde gas in the air of reaction chamber, then take out beaker, seal reaction chamber, open
UV lamp is irradiated, and the concentration of formaldehyde in each certain time reaction chamber is measured using the small-sized Formaldehyde analyzer of digital mobile,
Plastics prepared by embodiment 1 are hung in one of which experiment in reaction chamber, and comparative example 1 is hung in another set experiment in reaction chamber
The plastics of preparation, pass through in the course of reaction of different time, the Photocatalytic Degradation Property of plastics PARA FORMALDEHYDE PRILLS(91,95) in two groups of experiments of statistics,
As a result show：
Plastics prepared by embodiment 1 are after UV irradiates 2 hours, and the concentration of formaldehyde in reaction chamber is reduced behind 80%, 6 hours,
Concentration of formaldehyde is reduced to 0.8ppm, and plastics prepared by comparative example 1 are after UV irradiates 2 hours, and the concentration of formaldehyde in reaction chamber is only
Reduce behind 10%, 6 hours, concentration of formaldehyde also reduced by only 50%.The reason for analyzing the result of the test be, the embodiment of the present invention
1 plastics prepared compare comparative example 1, by nano titanium oxide being combined and adsorbing on the surface of plastics, play nano-silica
Change titanium has the function of absorption and photocatalytic degradation volatile organic matter in itself, the organic dirt for the in-car volatilization that on the one hand can degrade
Thing is contaminated, the organic matter that plastics are volatilized in itself on the other hand can be fundamentally prevented into the car, the work of purification air is realized
With.
4th, the mechanical performance of the plastics prepared respectively to embodiment 1 ~ 3, burning grade and environmental protection index are tested, as a result
It has been shown that, its tensile strength average out to 20MPa；Hardness average out to 50HRC；Elongation at break average out to 700%；Break permanent deformation
Average out to 17%；Flame retardant rating V0；The μ g/g of formaldehyde ＜ 3mg/kg, TVOC ＜ 10 μ g, toluene ＜ 1 μ g/g, dimethylbenzene ＜ 5, fog examination
＜ 0.5mg are tested, odor test is 1 grade, reaches environmental-protecting performance requirement.
Claims (9)
1. a kind of automobile interior exterior decorations use environment-friendly antibacterial plastics, it is characterised in that main by the raw material preparation of following parts by weight
Into：20 ~ 40 parts of resin binder, 90 ~ 110 parts of starch, 0.3 ~ 3 part of acids starch conversion auxiliary agent, esters starch conversion auxiliary agent 1 ~ 10
Part, 0.2 ~ 3 part of compound bio enzyme catalyst of starch conversion, 5 ~ 15 parts of fire retardant, 2 ~ 3 parts of solubilizer, hydroxyethyl cellulose 10 ~
15 parts, 5 ~ 10 parts of coupling agent, 1 ~ 2 part of nano zine oxide, 2 ~ 5 parts of organic antibacterial agent, 20 ~ 25 parts of Nano chitosan, nano-silica
Change 10 ~ 15 parts of titanium, 90 ~ 110 parts of dispersant；
The nano titanium oxide is rutile type nano titanic oxide and nanometer anatase titania according to 5：2 mass ratio
Mixture；
The automobile interior exterior decorations are prepared from environment-friendly antibacterial plastics by following methods：Including following operating procedure：
1）Pretreatment of raw material：
a：Prepare modified starch：Starch is taken, acids starch conversion auxiliary agent and starch conversion compound bio enzyme catalyst, spray is added
Enter the water of 2 ~ 6 parts by weight, normal temperature and pressure mechanical agitation dry process reaction adds esters starch conversion auxiliary agent, be warming up to after 1 ~ 2 hour
After 80 DEG C ~ 180 DEG C are reacted 30 ~ 40 minutes, pH=6 ~ 8 are adjusted, stops heating and stirs, modified starch is produced after cooling；
b：Preparation of nano antiseptic soak：Take Nano chitosan to be dissolved in acetic acid solution, obtain Nano chitosan solution；Take nanometer
Titanium dioxide is added in dispersant, obtains nano titanium oxide dispersion；Nano titanium oxide dispersion is added into Nano chitosan
In solution, pH=8 ~ 9 are adjusted, heating water bath is to 50 ~ 65 DEG C, stirring shear-mixed 30 ~ 50 minutes obtains nano antibacterial agent soak；
2）Prepare plastics embryo material：Take resin binder, modified starch, fire retardant, solubilizer, hydroxyethyl cellulose, coupling agent, nanometer
After zinc oxide and organic antibacterial agent are well mixed, extrusion molding after melt blending in double screw extruder is added, plastics embryo is produced
Material；
3）Post processing：By step 2）The plastics embryo material of preparation is soaked into step 1）In the nano antibacterial agent soak of middle preparation, water
Bath is heated to 50 ~ 65 DEG C, after soaking 1 ~ 2 hour, takes out plastics embryo material, dries, and produces described automobile interior exterior decorations environmental protection and resists
Bacterium plastics.
2. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that also including following parts by weight
Raw material：0.1 ~ 0.5 part of light stabilizer, 0.1 ~ 0.5 part of antioxidant.
3. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the resin binder is by following
The raw material composition of parts by weight：10 ~ 20 parts of PC resin, 5 ~ 10 parts of ABS resin, 5 ~ 10 parts of ASA resin.
4. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the fire retardant hinders for Halogen
Fire agent.
5. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the solubilizer is by following
The composition of the raw material of mass ratio：Maleic anhydride stem grafting polyolefin：Styrene-ethylene/propylene-based block copolymer=1：2.
6. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the coupling agent is by following matter
The raw material composition of amount ratio：Titanate coupling agent：Rare-earth coupling agent=2：1.
7. automobile interior exterior as claimed in claim 1 decorations use environment-friendly antibacterial plastics, it is characterised in that the organic antibacterial agent by with
The raw material composition of lower mass ratio：3 methyl 4 isopropyl phenol：P-hydroxybenzoate：N-（Fluorine dichloromethyl sulphur）Metatitanic acid
Imines：Methylene cyanate ester=1：2：1：3.
8. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the dispersant is by following matter
The raw material composition of amount ratio：Mass concentration is 3% polyvinyl alcohol water solution：Mass concentration is water-soluble for 2% CH-18 hyper-dispersants
Liquid=2：1.
9. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that the acids starch conversion is helped
Agent is one or more kinds of any mixtures in adipic acid, tartaric acid, laurate, stearic acid, oleic acid；The starch conversion
It is alpha-amylase, glucoamylase, acid protease, lipase, cellulase, grape glycosyloxy with compound bio enzyme catalyst
Change two or more any mixture in enzyme, nitrile hydratase；The esters starch conversion auxiliary agent is butyl stearate, lemon
One or more kinds of any mixtures in lemon acid tributyl, di-2-ethylhexyl maleate, sorbitol ester.
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| CN107353563A (en) * | 2017-06-21 | 2017-11-17 | 芜湖蓝天工程塑胶有限公司 | Castor-oil plant extract solution is modified antibiotic plastic and preparation method thereof |
| CN107163475A (en) * | 2017-06-21 | 2017-09-15 | 芜湖蓝天工程塑胶有限公司 | Chinese aloe root extract solution is modified antibiotic plastic and preparation method thereof |
| CN107365448A (en) * | 2017-08-08 | 2017-11-21 | 安徽泰诺塑胶有限公司 | A kind of Environment-friendlyplastic plastic orifice ring and its manufacture craft |
| CN108355619A (en) * | 2018-02-12 | 2018-08-03 | 台州职业技术学院 | A kind of nano adsorption material for removing water pollutant |
| CN109158092A (en) * | 2018-10-11 | 2019-01-08 | 成都其其小数科技有限公司 | A kind of multifunctional air cleaning agent and preparation method |
| CN110835439A (en) * | 2019-11-19 | 2020-02-25 | 杭州科技职业技术学院 | Medical antibacterial plastic material and preparation method thereof |
| CN114058108B (en) * | 2021-11-30 | 2023-02-24 | 泛海海工(山东)智能装备有限公司 | Long-acting broad-spectrum antibacterial polyethylene material and preparation method thereof |
| CN115948058B (en) * | 2023-02-21 | 2024-02-27 | 浙江职信通信科技有限公司 | Preparation method of antibacterial and deodorant plastic modified material |
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Address after: 453400 middle section of Liu Hui Avenue, Puxi District, Changyuan, Xinxiang, Henan Patentee after: Henan Heng Polytron Technologies Inc Address before: 453413 Xinxiang City, Henan Province, Changyuan County, she Industrial Zone Patentee before: HENAN HENGFA RUBBER & PLASTIC CO., LTD. |