CN106188644A - 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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Abstract
The present invention relates to automobile interior exterior decorations technical field of function materials, concrete open a kind of automobile interior exterior decorations environment-friendly antibacterial plastics and preparation method thereof.These plastics are mainly prepared from the following materials: resin binder 20 ~ 40 parts, starch 90 ~ 110 parts, acids starch conversion auxiliary agent 0.3 ~ 3 part, esters starch conversion auxiliary agent 1 ~ 10 part, starch conversion compound bio enzyme catalyst 0.2 ~ 3 part, fire retardant 5 ~ 15 parts, solubilizing agent 2 ~ 3 parts, hydroxyethyl cellulose 10 ~ 15 parts, coupling agent 5 ~ 10 parts, nano zine oxide 1 ~ 2 part, organic antibacterial agent 2 ~ 5 parts, Nano chitosan 20 ~ 25 parts, nano titanium oxide 10 ~ 15 parts, dispersant 90 ~ 110 parts.The present invention, by adsorbing and be attached to frosting by Nano chitosan and nano titanium oxide, gives anti-microbial property, air cleaning performance and anti-fouling and self-cleaning performance that plastics have excellence.
Description
Technical field
The present invention relates to automobile interior exterior decorations technical field of function materials, be specifically related to a kind of automobile interior exterior decorations environmental protection and resist
Bacterium plastics and preparation method thereof.
Background technology
Along with the development of modern automobile industry, plastics application percentage in the car is more and more higher, especially with driver
Contact most inside gadgets.In car, the quality problems of air are the most increasingly paid close attention to by society, and having of producing in recent years
Closing in the environmental protection event of 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 relevant industry standard i.e. " Air Quality Evaluation guide in passenger car ", tackle the most serious car internal ring
Environment pollution problem.And in order to solve the pollution problem of car room, people are also for the environmental protection merit of automobile interior exterior decorations material
Property can innovate and improve, as reduced the release of material volatile organic matter of automobile interior exterior decorations, the anti-flammability of raising material
Energy etc., the degradability improving material etc..Such as, occur in that at present substantial amounts of with starch granules for base material replace tradition
Fluoropolymer resin base material prepare plastics, to improve the degradability of plastics, but due to the limitation of starch granules self,
Cause the performances such as the toughness of plastics of preparation, intensity can not 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 material and preparation method thereof, with PC and ABS tree
Fat is compounding as base material, improves the mobility of melt in plastic processes, the processing characteristics of raising intermingling material, but these public affairs
The subject matter that the intermingling material opened solves is to introduce halogen-free flame retardants, reduce material produce after combustion a large amount of poisonous strictly
The very big potential safety hazard bringing occupant, in the antibiotic property of this material and car, the purification function of air still can not meet people
For the highest requirement of automotive interior/exterior material.
Therefore, antibiotic property and air-cleaning function for automobile interior exterior decorations plastics are studied and innovate, and become
The developing direction of automobile interior exterior decorations plastics at present.
Summary 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, have anti-microbial property, air cleaning performance and the anti-fouling and self-cleaning performance of excellence, and have degradability, mechanical performance and
Every environmental protection index is excellent.
Meanwhile, the present invention also resides in the preparation method providing a kind of automobile interior exterior decorations environment-friendly antibacterial plastics, improves plastics
Anti-microbial property and air-cleaning function.
In order to realize object above, 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 binder 20 ~
40 parts, starch 90 ~ 110 parts, acids starch conversion auxiliary agent 0.3 ~ 3 part, esters starch conversion auxiliary agent 1 ~ 10 part, starch conversion is with multiple
Symphysis thing enzyme catalyst 0.2 ~ 3 part, fire retardant 5 ~ 15 parts, solubilizing agent 2 ~ 3 parts, hydroxyethyl cellulose 10 ~ 15 parts, coupling agent 5 ~ 10
Part, nano zine oxide 1 ~ 2 part, organic antibacterial agent 2 ~ 5 parts, Nano chitosan 20 ~ 25 parts, nano titanium oxide 10 ~ 15 parts, dispersion
Agent 90 ~ 110 parts.
Also include the raw material of following parts by weight: light stabilizer 0.1 ~ 0.5 part, 0.1 ~ 0.5 part of antioxidant.
Described nano titanium oxide is rutile type nano titanic oxide with nanometer anatase titania according to the matter of 5:2
The mixture of amount ratio.Rutile type nano titanic oxide is different with the fermi level of nanometer anatase titania, and both compound,
Improve nano titanium oxide to the absorption property of volatile contaminant in air, to the Photocatalytic Degradation Property of pollutant, automatically
Non-toxic performance, antibacterial sterilization performance, anti-fog performance, anti-fouling and self-cleaning performance and UV absorbing properties.
Described resin binder is made up of the raw material of following parts by weight: PC resin 10 ~ 20 parts, ABS resin 5 ~ 10 parts, ASA
Resin 5 ~ 10 parts.Use three kinds of resin binders to compound, be used in combination with starch base, overcome plastics prepared by starch base
Mechanical strength cannot meet the defect using requirement, strengthens the mechanical strength of starch, and three kinds of compounding uses of resin binders, gram
Take the defect of plastics prepared by single resin binder, improve the mobility in plastics preparation process, improve the processability of plastics
Can, improve the scratch resistance of the plastics of preparation, chemical-resistant, heat distortion temperature, weatherability and glossiness simultaneously.
Described fire retardant is halogen-free flame retardants.
Described solubilizing agent is forming of the raw material by following mass ratio: maleic anhydride stem grafting polyolefin: styrene-second
Alkene/propylene-based block copolymer=1:2.Use compounding solubilizing agent, improve the performance blended between compounding resin binder,
Improve processing characteristics and the crudy of plastics.
Described coupling agent is made up of the raw material of following mass ratio: titanate coupling agent: rare-earth coupling agent=2:1.Use multiple
The coupling agent joined improves processing characteristics and the mechanical performance of plastics.
Described 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 sulfur) metatitanic acid imines: methylene cyanate ester=1:2:1:3.Use compounding organic antibacterial agent and nanometer
Zinc oxide compounds and uses the inside being compounded in plastics, improves the anti-microbial property of plastics inner, improves the serviceability of plastics, extends
The service life of plastics.
Described dispersant is made up of the raw material of following mass ratio: mass concentration is the polyvinyl alcohol water solution of 3%: quality
Concentration is the CH-18 hyper-dispersant aqueous solution=2:1 of 2%.Use this compounding dispersant, improve nano titanium oxide in nanoshell
Dispersion stabilization and uniformity in polysaccharide acetic acid solution, so make nano titanium oxide can uniform adsorption at Nano chitosan
Surface, and then uniformly it is attached to frosting, improve the antibiotic property of frosting, air cleaning and antifouling auto purification performance.
Described acids starch conversion auxiliary agent is the one in adipic acid, tartaric acid, lauric acid, stearic acid, oleic acid or one
Any of the above mixture；Described starch conversion compound bio enzyme catalyst is α-amylase, glucoamylase, acidic protein
Two or more any mixture in enzyme, lipase, cellulase, glucoseoxidase, nitrile hydratase；Described esters
Starch conversion auxiliary agent is one or more in butyl stearate, tributyl citrate, di-2-ethylhexyl maleate, sorbitol ester
Any mixture.
Described light stabilizer is O-hydroxyl-diphenyl ketone class stabilizer, organic nickel chelate stabilizer and hindered amine light stabilizer
The mixture of agent.Described antioxidant is antioxidant CA, antioxidant DNP and the mixture of 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: take starch, adds acids starch conversion auxiliary agent and starch conversion compound bio enzyme catalyst, spray
Entering the water of 2 ~ 6 weight portions, normal temperature and pressure mechanical agitation dry process reaction, after 1 ~ 2 hour, adds esters starch conversion auxiliary agent, is warming up to
After 80 DEG C ~ 180 DEG C are reacted 30 ~ 40 minutes, regulate pH=6 ~ 8, stop heating and stirring, after cooling, i.e. obtain modified starch；
B: preparation of nano antibacterial soak: take Nano chitosan and be dissolved in acetic acid solution, obtain Nano chitosan solution；Take nanometer
Titanium dioxide adds in dispersant, obtains nano titanium oxide dispersion；Nano titanium oxide dispersion is added Nano chitosan
In solution, regulate pH=8 ~ 9, heating in water bath to 50 ~ 65 DEG C, stirring shear-mixed 30 ~ 50 minutes, obtain nano antibacterial agent soak；
2) plastics stock is prepared: take resin binder, modified starch, fire retardant, solubilizing agent, hydroxyethyl cellulose, coupling agent, nanometer
After zinc oxide and organic antibacterial agent mix homogeneously, add extrusion molding after melt blending in double screw extruder, obtain plastics embryo
Material；
3) post processing: by step 2) the plastics stock prepared is soaked in step 1) in the nano antibacterial agent soak of preparation, water
Bath is heated to 50 DEG C ~ 65 DEG C, after soaking 1 ~ 2 hour, takes out plastics stock, is dried, obtains described automobile interior exterior decorations environmental protection
Antibiotic plastic.
In above-mentioned preparation method, by nano titanium oxide being dispersed under the effect of dispersant Nano chitosan solution
In, and the plastics stock of preparation is immersed in the Nano chitosan solution of nano titanium oxide so that Nano chitosan is inhaled
Attached nano titanium oxide and then the functional groups with plastics stock surface, be attached to the surface of plastics stock, or by certainly
The adsorption of body adsorbs on the surface of plastics stock, improves the anti-microbial property of plastics, and gives the sky that plastics have excellence
Gas purifying property and anti-fouling and self-cleaning function.The temperature and time that the most above-mentioned preparation method is soaked by restriction, promotes nanometer two
Titanium oxide and Nano chitosan are attached to frosting, it is ensured that the steady quality of prepared plastics.
Step 2) described in the temperature of melt blending be 160 DEG C ~ 185 DEG C.
Automobile interior exterior decorations environment-friendly antibacterial plastics of the present invention, with starch as primary raw material, and change by adding acids starch
Property auxiliary agent and esters starch conversion auxiliary agent, make starch under the effect of compound bio-enzyme catalyst, degeneration occur, strengthen starch with
The amalgamation of resin binder, and then raising prepares the mechanical performance of plastics；Meanwhile, hydroxyethyl cellulose and coupling agent and solubilizing agent
It is used in combination, improves processing characteristics and the mechanical performance of plastics；It addition, Nano chitosan and nano titanium oxide are used in combination,
It is dispersed in uniform and stable for nano titanium oxide in Nano chitosan solution by the effect of dispersant, is then gathered by nanoshell
Sugar and the absorption property of nano titanium oxide self, both mutually adsorb combination, when the plastics stock of the present invention is immersed in nanometer
Time in the Nano chitosan solution of titanium dioxide, modified starch it is plastics stock surface exposure prepared by main base
Starch conversion group is combined with Nano chitosan and then nano titanium oxide is attached to frosting, simultaneously Nano chitosan and
Nano titanium oxide self has certain absorption property, in immersion process, and plastics stock surface adsorption nano titanium oxide
And Nano chitosan, the Nano chitosan being attached to frosting by functional groups and adsorption function has the most antibacterial
Performance, nano titanium oxide not only has good anti-microbial property, also have to the absorption property of volatile contaminant in air,
To the Photocatalytic Degradation Property of pollutant, automatic Non-toxic performance, antibacterial sterilization performance, anti-fog performance, anti-fouling and self-cleaning performance and
UV absorbing properties.Therefore, Nano chitosan and nano titanium oxide are with the use of the anti-microbial property improving the plastics prepared
While, make the plastics of preparation have good air cleaning performance and self-cleaning function.
The preparation method of automobile interior exterior decorations environment-friendly antibacterial plastics of the present invention, easy and simple to handle, it is easy to control, be suitable to industrialization
Popularization and application.
Detailed description of the invention
Below by specific embodiment, technical scheme is described in detail.
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,
ABS resin 7 parts, ASA resin 7 parts, starch 100 parts, 2 parts of tartaric acid, butyl stearate 5 parts, glucoamylase 2 parts, fiber
Element enzyme 0.5 part, halogen-free flame retardants 10 parts, maleic anhydride grafted polyethylene 0.8 part, styrene-ethylene/propylene-based block copolymer
1.6 parts, hydroxyethyl cellulose 12 parts, titanate coupling agent 5 parts, rare-earth coupling agent 2.5 parts, nano zine oxide 1.5 parts, 3-first
Base-4-isopropyl-phenol 0.5 part, to this formic acid esters of hydroxyl 1 part, N-(fluorine dichloromethyl sulfur) metatitanic acid imines 0.5 part, methylene cyanogen
Acid esters 1.5 parts, Nano chitosan 23 parts, nano titanium oxide 12 parts, mass concentration are polyvinyl alcohol water solution 70 parts, the matter of 3%
Amount concentration is the CH-18 hyper-dispersant aqueous solution 35 parts of 2%；Wherein nano titanium oxide be rutile type nano titanic oxide with
Nanometer anatase titania is according to the mixture of the mass ratio of 5:2.
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 and put in batch mixer, adds tartaric acid, glucoamylase and cellulase, sprays into 5
The water of weight portion, normal temperature and pressure mechanical agitation dry process reaction, after 1.5 hours, adds butyl stearate, is warming up to 130 DEG C of reactions 35
After minute, regulate pH=7, stop heating and stirring, after cooling, i.e. obtain modified starch；
B: preparation of nano antibacterial soak: take Nano chitosan and be dissolved in acetic acid solution, obtain Nano chitosan solution；Take quality
Concentration be 3% polyvinyl alcohol water solution molten with CH-18 hyper-dispersant aqueous solution that mass concentration is 2% preparation dispersant
Liquid, then adds in dispersant solution by nano titanium oxide, obtains nano titanium oxide dispersion；Nano titanium oxide is disperseed
Liquid adds in Nano chitosan solution, regulates pH=8, heating in water bath to 60 DEG C, stirring shear-mixed 40 minutes, obtains nano-antibacterial
Agent soak；
2) plastics stock is prepared: take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride grafting
Polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, nano oxygen
Change zinc, 3 methyl 4 isopropyl phenol, to this formic acid esters of hydroxyl, N-(fluorine dichloromethyl sulfur) metatitanic acid imines, methylene cyanate
After mix homogeneously, add extrusion molding after 170 DEG C of melt blendings in double screw extruder, obtain plastics stock；
3) post processing: by step 2) the plastics stock prepared is soaked in step 1) in the nano antibacterial agent soak of preparation, water
Bath is heated to 60 DEG C, after soaking 1.5 hours, takes out plastics stock, is dried, obtains described automobile interior exterior decorations environment-friendly antibacterial and mould
Material.
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,
ABS resin 5 parts, ASA resin 5 parts, starch 90 parts, lauric acid 0.3 part, citric acid dibutyl ester 5 parts, α-amylase 0.1 part, fat
Enzyme 0.1 part, halogen-free flame retardants 5 parts, maleic anhydride grafted polyethylene 0.7 part, styrene-ethylene/propylene-based block copolymer 1.4
Part, hydroxyethyl cellulose 10 parts, titanate coupling agent 4 parts, rare-earth coupling agent 2 parts, nano zine oxide 1 part, 3-methyl-4-isopropyl
Base phenol 0.3 part, to this formic acid esters of hydroxyl 0.6 part, N-(fluorine dichloromethyl sulfur) metatitanic acid imines 0.3 part, methylene cyanate 0.9
Part, Nano chitosan 20 parts, nano titanium oxide 10 parts, mass concentration are polyvinyl alcohol water solution 60 parts, the mass concentration of 3%
Be 2% CH-18 hyper-dispersant aqueous solution 30 parts, light stabilizer 1 part, antioxidant 1 part；Wherein nano titanium oxide is golden red
Stone-type nano titanium oxide and nanometer anatase titania are according to the mixture of the mass ratio of 5:2；Light stabilizer is mass ratio
For O-hydroxyl-diphenyl ketone class stabilizer: organic nickel chelate stabilizer: the mixture of hindered amine as light stabilizer=1:1:1；Antioxygen
Agent is antioxidant CA: antioxidant DNP: the mixture of antioxidant 264=1:2:1.
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 and put in batch mixer, adds tartaric acid, glucoamylase and cellulase, sprays into 2
The water of weight portion, normal temperature and pressure mechanical agitation dry process reaction, after 1.5 hours, adds butyl stearate, heats up 80 DEG C and reacts 40 points
Zhong Hou, regulates pH=6, stops heating and stirring, i.e. obtains modified starch after cooling；
B: preparation of nano antibacterial soak: take Nano chitosan and be dissolved in acetic acid solution, obtain Nano chitosan solution；Take quality
Concentration be 3% polyvinyl alcohol water solution molten with CH-18 hyper-dispersant aqueous solution that mass concentration is 2% preparation dispersant
Liquid, then adds in dispersant solution by nano titanium oxide, obtains nano titanium oxide dispersion；Nano titanium oxide is disperseed
Liquid adds in Nano chitosan solution, regulates pH=9, heating in water bath to 50 DEG C, stirring shear-mixed 50 minutes, obtains nano-antibacterial
Agent soak；
2) plastics stock is prepared: take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride grafting
Polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, nano oxygen
Change zinc, 3 methyl 4 isopropyl phenol, to this formic acid esters of hydroxyl, N-(fluorine dichloromethyl sulfur) metatitanic acid imines, methylene cyanic acid
After ester, light stabilizer, antioxidant mix homogeneously, add extrusion molding after 160 DEG C of melt blendings in double screw extruder, to obtain final product
Plastics stock；
3) post processing: by step 2) the plastics stock prepared is soaked in step 1) in the nano antibacterial agent soak of preparation, water
Bath is heated to 50 DEG C, after soaking 2 hours, takes out plastics stock, is dried, obtains described automobile interior exterior decorations environment-friendly antibacterial and mould
Material.
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,
ABS resin 10 parts, ASA resin 10 parts, starch 110 parts, oleic acid 3 parts, sorbitol ester 10 parts, glucoseoxidase 2 parts, acid egg
White enzyme 1 part, halogen-free flame retardants 15 parts, maleic anhydride grafted polyethylene 1 part, styrene-ethylene/propylene-based block copolymer 2 parts, hydroxyl
Ethyl cellulose 15 parts, titanate coupling agent 6 parts, rare-earth coupling agent 3 parts, nano zine oxide 2 parts, 3-methyl-4-cumene
0.7 part of phenol, to this formic acid esters of hydroxyl 1.4 parts, N-(fluorine dichloromethyl sulfur) metatitanic acid imines 0.7 part, methylene cyanate 2.1 parts,
Nano chitosan 25 parts, nano titanium oxide 15 parts, mass concentration be 3% polyvinyl alcohol water solution 72 parts, mass concentration be 2%
CH-18 hyper-dispersant aqueous solution 34 parts；Wherein nano titanium oxide is rutile type nano titanic oxide and dichloride in anatase type
Titanium dioxide is according to the mixture of the mass ratio of 5:2.
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 and put in batch mixer, adds tartaric acid, glucoamylase and cellulase, sprays into 6
The water of weight portion, normal temperature and pressure mechanical agitation dry process reaction, after 2 hours, adds butyl stearate, is warming up to 180 DEG C and reacts 30 points
Zhong Hou, regulates pH=8, stops heating and stirring, i.e. obtains modified starch after cooling；
B: preparation of nano antibacterial soak: take Nano chitosan and be dissolved in acetic acid solution, obtain Nano chitosan solution；Take quality
Concentration be 3% polyvinyl alcohol water solution molten with CH-18 hyper-dispersant aqueous solution that mass concentration is 2% preparation dispersant
Liquid, then adds in dispersant solution by nano titanium oxide, obtains nano titanium oxide dispersion；Nano titanium oxide is disperseed
Liquid adds in Nano chitosan solution, regulates pH=8, heating in water bath to 65 DEG C, stirring shear-mixed 30 minutes, obtains nano-antibacterial
Agent soak；
2) plastics stock is prepared: take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride grafting
Polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, nano oxygen
Change zinc, 3 methyl 4 isopropyl phenol, to this formic acid esters of hydroxyl, N-(fluorine dichloromethyl sulfur) metatitanic acid imines, methylene cyanate
After mix homogeneously, add extrusion molding after 185 DEG C of melt blendings in double screw extruder, obtain plastics stock；
3) post processing: by step 2) the plastics stock prepared is soaked in step 1) in the nano antibacterial agent soak of preparation, water
Bath is heated to 65 DEG C, after soaking 1 hour, takes out plastics stock, is dried, obtains described automobile interior exterior decorations environment-friendly antibacterial and mould
Material.
Comparative example 1
A kind of automobile interior exterior decorations plastics, are mainly prepared from by the raw material of following parts by weight: PC resin 15 parts, ABS resin 7
Part, ASA resin 7 parts, starch 100 parts, 2 parts of tartaric acid, butyl stearate 5 parts, glucoamylase 2 parts, cellulase 0.5
Part, halogen-free flame retardants 10 parts, maleic anhydride grafted polyethylene 0.8 part, styrene-ethylene/propylene-based block copolymer 1.6 parts, hydroxyl
Ethyl cellulose 12 parts, titanate coupling agent 5 parts, rare-earth coupling agent 2.5 parts, nano zine oxide 1.5 parts, 3-methyl-4-isopropyl
Base phenol 0.5 part, to this formic acid esters of hydroxyl 1 part, N-(fluorine dichloromethyl sulfur) metatitanic acid imines 0.5 part, methylene cyanate 1.5
Part, Nano chitosan 23 parts, nano titanium oxide 12 parts；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 and put in batch mixer, adds tartaric acid, glucoamylase and cellulase, sprays into 5
The water of weight portion, normal temperature and pressure mechanical agitation dry process reaction, after 1.5 hours, adds butyl stearate, is warming up to 130 DEG C of reactions 35
After minute, regulate pH=7, stop heating and stirring, after cooling, i.e. obtain modified starch；
2) plastics stock is prepared: take PC resin, ABS resin, ASA resin, modified starch, halogen-free flame retardants, maleic anhydride grafting
Polyethylene, styrene-ethylene/propylene-based block copolymer, hydroxyethyl cellulose, titanate coupling agent, rare-earth coupling agent, nano oxygen
Change zinc, 3 methyl 4 isopropyl phenol, to this formic acid esters of hydroxyl, N-(fluorine dichloromethyl sulfur) metatitanic acid imines, methylene cyanic acid
After ester, Nano chitosan, nano titanium oxide mix homogeneously, add in double screw extruder and be extruded into after 170 DEG C of melt blendings
Type, obtains described automobile interior exterior decorations plastics.
Test example
1, anti-microbial property contrast test:
Test method: point two groups of tests, often in group test, all depletion Staphylococcus aureus and escherichia coli coat M-H cultivation
Base, the automobile interior exterior decorations environment-friendly antibacterial plastics of one of which Example 1 preparation are affixed on media surface, and another set takes right
The automobile interior exterior decorations plastics of ratio 1 preparation are affixed on media surface, are then respectively placed in 37 DEG C of constant incubators and cultivate,
Observed result after 48 hours, the plastics of Statistics Implementation example 1 and comparative example 1 preparation are to staphylococcus aureus and colibacillary anti-
Bacterium effect, result shows, the plastics of embodiment 1 preparation reach 90% to the antibiotic rate of staphylococcus aureus, to colibacillary
Antibiotic rate reaches 95%；And the plastics of comparative example 1 preparation are only 70%, to colibacillary to the antibiotic rate of staphylococcus aureus
Antibiotic rate is only 78%.
From this result of the test, the present invention exists by Nano chitosan and nano titanium oxide being combined and adhering to absorption
The mode of frosting, and optimize the proportioning of nano titanium oxide different crystal forms simultaneously, improve the anti-microbial property of plastics.
2, anti-fouling and self-cleaning performance contrast test:
Test method: Example 1 and the plastics of comparative example 1 preparation respectively, sprays soy sauce respectively, places 30 minutes on its surface
After, carrying out wiping with rag, observe the cleaning situation of two kinds of frosting dirts, result shows, embodiment 1 frosting sprays
Soy sauce can wipe out easily with rag placing after 30 minutes, will not adhere at frosting, and comparative example 1 plastic table
The soy sauce that face is sprayed immerses in plastics after mode 30 minutes, it is difficult to remove, and needs could remove by special cleaning product.
Analyzing its reason to be, the embodiment of the present invention 1 is prepared plastics and is made plastics in frosting combination and attachment nano titanium oxide
The hydrophilicity that surface has had so that the pollutant such as greasy dirt are difficult to be attached to its surface, makes the plastics of preparation have certain
Anti-fouling and self-cleaning performance.
3, air cleaning performance comparison test:
Test method: point two groups of tests, the unit of plastic often all taking 30 pieces of 10cm × 10cm sizes in group test is suspended on UV ultraviolet
In light radiation reaction chamber, the beaker that will be equipped with formalin is also placed in reaction chamber, seals reaction chamber, when formaldehyde volatilization one section
Between, make the air of reaction chamber has certain density formaldehyde gas, then beaker is taken out, seal reaction chamber, turn on UV lamp
It is irradiated, uses the small-sized Formaldehyde analyzer of digital mobile to measure the concentration of formaldehyde in each certain time reaction chamber, wherein
The plastics of embodiment 1 preparation are hung in one group of experiment in reaction chamber, and another set experiment is hung comparative example 1 in reaction chamber and prepared
Plastics, add up two groups test in the course of reaction of different time, the Photocatalytic Degradation Property of plastics PARA FORMALDEHYDE PRILLS(91,95), result
Display:
The plastics of embodiment 1 preparation are after UV irradiates 2 hours, and the concentration of formaldehyde in reaction chamber reduces 80%, after 6 hours, and formaldehyde
Concentration is reduced to 0.8ppm, and the plastics of comparative example 1 preparation are after UV irradiates 2 hours, and the concentration of formaldehyde in reaction chamber only reduces
10%, after 6 hours, concentration of formaldehyde also reduced by only 50%.The reason analyzing this result of the test is, the embodiment of the present invention 1 is made
Comparative example 1 compared by standby plastics, by being combined by nano titanium oxide and adsorbing on the surface of plastics, plays nano titanium oxide
Itself there is the function of absorption and photocatalytic degradation volatile organic matter, the organic contamination of volatilization in car of on the one hand can degrading
Thing, on the other hand can fundamentally stop the Organic substance that plastics itself volatilize into the car, it is achieved purify the effect of air.
4, respectively the mechanical performance of plastics, burning grade and the environmental protection index of embodiment 1 ~ 3 preparation is tested, result
Display, its hot 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；Formaldehyde ＜ 3mg/kg, TVOC ＜ 10 μ g, toluene ＜ 1 μ g/g, dimethylbenzene ＜ 5 μ g/g, fog tries
Testing ＜ 0.5mg, odor test is 1 grade, all reaches environmental-protecting performance requirement.
Claims (10)
1. automobile interior exterior decorations use environment-friendly antibacterial plastics, it is characterised in that mainly by the raw material preparation of following parts by weight
Become: resin binder 20 ~ 40 parts, starch 90 ~ 110 parts, acids starch conversion auxiliary agent 0.3 ~ 3 part, esters starch conversion auxiliary agent 1 ~ 10
Part, starch conversion compound bio enzyme catalyst 0.2 ~ 3 part, fire retardant 5 ~ 15 parts, solubilizing agent 2 ~ 3 parts, hydroxyethyl cellulose 10 ~
15 parts, coupling agent 5 ~ 10 parts, nano zine oxide 1 ~ 2 part, organic antibacterial agent 2 ~ 5 parts, Nano chitosan 20 ~ 25 parts, nano-silica
Change titanium 10 ~ 15 parts, dispersant 90 ~ 110 parts.
2. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that also include following parts by weight
Raw material: light stabilizer 0.1 ~ 0.5 part, 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 described resin binder is by following
The raw material composition of parts by weight: PC resin 10 ~ 20 parts, ABS resin 5 ~ 10 parts, ASA resin 5 ~ 10 parts.
4. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that described fire retardant is Halogen resistance
Combustion agent.
5. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that described solubilizing agent 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 described 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 decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that described organic antibacterial agent by with
The raw material composition of lower mass ratio: 3 methyl 4 isopropyl phenol: p-Hydroxybenzoate: N-(fluorine dichloromethyl sulfur) 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 described dispersant is by following matter
Amount ratio raw material composition: mass concentration is the polyvinyl alcohol water solution of 3%: mass concentration be 2% CH-18 hyper-dispersant water-soluble
Liquid=2:1.
9. automobile interior exterior decorations as claimed in claim 1 use environment-friendly antibacterial plastics, it is characterised in that described acids starch conversion helps
Agent is one or more any mixture in adipic acid, tartaric acid, lauric acid, stearic acid, oleic acid；Described starch conversion
It is α-amylase, glucoamylase, acid protease, lipase, cellulase, Fructus Vitis viniferae glycosyloxy with compound bio enzyme catalyst
Change two or more any mixture in enzyme, nitrile hydratase；Described esters starch conversion auxiliary agent is butyl stearate, lemon
One or more any mixture in lemon acid tributyl, di-2-ethylhexyl maleate, sorbitol ester.
10. the preparation method of automobile interior exterior decorations environment-friendly antibacterial plastics as claimed in claim 1, it is characterised in that bag
Include following operating procedure:
1) pretreatment of raw material:
A: prepare modified starch: take starch, adds acids starch conversion auxiliary agent and starch conversion compound bio enzyme catalyst, spray
Entering the water of 2 ~ 6 weight portions, normal temperature and pressure mechanical agitation dry process reaction, after 1 ~ 2 hour, adds esters starch conversion auxiliary agent, is warming up to
After 80 DEG C ~ 180 DEG C are reacted 30 ~ 40 minutes, regulate pH=6 ~ 8, stop heating and stirring, after cooling, i.e. obtain modified starch；
B: preparation of nano antibacterial soak: take Nano chitosan and be dissolved in acetic acid solution, obtain Nano chitosan solution；Take nanometer
Titanium dioxide adds in dispersant, obtains nano titanium oxide dispersion；Nano titanium oxide dispersion is added Nano chitosan
In solution, regulate pH=8 ~ 9, heating in water bath to 50 ~ 65 DEG C, stirring shear-mixed 30 ~ 50 minutes, obtain nano antibacterial agent soak；
2) plastics stock is prepared: take resin binder, modified starch, fire retardant, solubilizing agent, hydroxyethyl cellulose, coupling agent, nanometer
After zinc oxide and organic antibacterial agent mix homogeneously, add extrusion molding after melt blending in double screw extruder, obtain plastics embryo
Material；
3) post processing: by step 2) the plastics stock prepared is soaked in step 1) in the nano antibacterial agent soak of preparation, water
Bath is heated to 50 ~ 65 DEG C, after soaking 1 ~ 2 hour, takes out plastics stock, is dried, and obtains described automobile interior exterior decorations environmental protection and resists
Bacterium plastics.
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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 |
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