CN101735533A - Environmentally-friendly antibacterial polyvinyl chloride composite material and preparation method thereof - Google Patents
Environmentally-friendly antibacterial polyvinyl chloride composite material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an environmentally-friendly antibacterial polyvinyl chloride composite material and a preparation method thereof. The composite material consists of the following components in part by weight: 100 parts of polyvinyl chloride, 20 to 60 parts of non-o-benzene small molecular plasticizer, 3 to 20 parts of processing modifier, 1 to 10 parts of non-toxic stabilizer, 0.5 to 5 parts of lubricant and 0.5 to 3 parts of inorganic silver antibacterial agent; and the composite material is obtained by melting and blending the components. The polyvinyl chloride material prepared by the method is non-toxic and environmentally-friendly, has broad-spectrum antibacterial property, and is used in the fields of building, food packing, medical instruments and the like.
Description
Technical field
The technology of the present invention relates to a kind of environmentally-friendly antibacterial polyvinyl chloride composite material and preparation method thereof, particularly a kind ofly add auxiliary agent by novel environment friendlies such as non-adjacent benzene micromolecular softening agent, environmental protection stablizer and antiseptic-germicides and make, have environment-friendly polyvinyl chloride matrix material of nontoxic, broad spectrum antibacterial performance and preparation method thereof by melt blending.
Background technology
Polyvinyl chloride (PVC) is widely used in plastics such as producing door and window, pipeline, medicine equipment, toy as one of five big general-purpose plastics, and the output in the world's five big plastics is only second to polyethylene (PE), accounts for 29% of world's synthetic resins aggregate consumption.Polyvinyl chloride is originally as granulate material, and the mechanical hardness height heats easily and decomposes, and in the production process of PVC, needs to add multiple auxiliary agents such as softening agent, stablizer, lubricant, makes PVC can be applicable to various purposes.Yet because the existence of these auxiliary agents, polyvinyl chloride in use may produce certain negative impact to the environment and the mankind.The lead salts stablizer, the organic tin stablizer environmental pollution that generally use in the polrvinyl chloride product are very big; And traditional plasticizer for polyvinyl chloride, being reported as adjacent benzene class softening agent such as dibutyl phthalate, dioctyl phthalate (DOP)s is a kind of suspicious carcinogenic substance.
Patent CN 1294148A discloses a kind of nontoxic polychloroethylene composition and preparation method, a kind of polychloroethylene composition that uses asepsis environment-protecting stablizers such as rare-earth stabilizer, calcium zinc stabilizer to replace Pb stabilizer and obtain, but the plasticiser system that this polychloroethylene composition uses is adjacent benzene class plasticiser system, so still exist certain " poisonous " property.
The blood transfusion utensil of patent CN 1696189A report uses the composite plasticiser system of phthalic ester, trimellitate and citrate with soft polyvinyl chloride plastic, has reduced plastics toxicity.
Auxiliary agents such as the poisonous stablizer of replacement polyvinyl chloride, softening agent, avoided polyvinyl chloride itself to environment and human harm, but material store and the life-time service process in breed bacteria easily often, particularly for medicine equipment or with goods such as food product pack.Except the toxicity problem of itself, the infectation of bacteria that may cause in the macromolecular material use makes this pvc material become the hidden danger that may threaten people's health to the blood transfusion utensil that patent CN 1696189A is provided with pvc material.In a word,, develop that a kind of itself is nontoxic along with the proposition of people to material environment friendly, safety, health requirements, environmental friendliness, and it is significant to have a pvc material of broad spectrum antibacterial.
Summary of the invention
One of purpose of the present invention is to have overcome the deficiencies in the prior art, and a kind of polyvinyl chloride composite materials of environment-friendly antibacterial is provided.
Two of purpose of the present invention is to provide the preparation method of this matrix material.
For achieving the above object, the present invention adopts following technical scheme:
A kind of environmentally-friendly antibacterial polyvinyl chloride composite material, form by polyvinyl chloride (PVC) RESINS, non-adjacent benzene micromolecular softening agent, modifier, non-toxic stabilizer, lubricant, inorganic silver series antibacterial agent, it is characterized in that each component of this matrix material and parts by weight thereof are:
100 parts of polyvinyl chloride (PVC) RESINS
20～60 parts in non-adjacent benzene class softening agent
3～20 parts of modifiers
1～10 part of non-toxic stabilizer (mark among the embodiment has surpassed 5 parts)
0.5～5 part of lubricant
0.5～3 part of antiseptic-germicide
Wherein, described polyvinyl chloride (PVC) RESINS mean polymerisation degree is 800～2500, and its remaining vinyl chloride monomer content is not more than 5ppm.
Above-mentioned non-adjacent benzene class softening agent does not contain following group:
Above-mentioned non-adjacent benzene micromolecular softening agent is: the hot diester (DEHA) of trimellitic acid three different monooctyl esters (TOTM), hexanodioic acid, butyryl citric acid tri-n-hexyl ester (BTHC), two (different the ninth of the ten Heavenly Stems ester) hexahydroaniline-1, at least a in the 2-adipic acid ester (DINCH).
Above-mentioned stablizer is: at least a in powder calcium zinc stabilizer, liquid calcium zinc stabilizer, rare-earth stabilizer, the epoxy soybean oil.
Above-mentioned modifier is: at least a in polyacrylate(s) (ACR), methacrylic acid-butadiene-styrene terpolymer (MBS), ethylene-acetate enoate copolymer (EVA), the ethylene-propylene rubber(EPR).
Above-mentioned lubricant is at least a in stearic acid, calcium stearate, Zinic stearas, paraffin, the polyethylene wax.
Above-mentioned inorganic silver series antibacterial agent is: at least a in glass carrying silver antimicrobials, zirconium phosphate carrying silver antimicrobials, the zeolite carrying silver antimicrobials.
A kind of method for preparing above-mentioned environmentally-friendly antibacterial polyvinyl chloride composite material, the concrete steps that it is characterized in that this method are: above-mentioned each component is carried out melt blending, the processing parameter of melt blending is: melt temperature is 130～165 ℃, and screw speed is 200～400rpm.
Compare with current material and to have following characteristics:
1. adjuvant system such as the poisonous stablizer of having avoided using in traditional igelite, softening agent, solve polyvinyl chloride (PVC) RESINS in use because pollution on the environment problems such as the migration of softening agent auxiliary agent and stablizer, volatilizations, obtained the pvc material of environmental protection;
2. use antiseptic-germicide with high-efficiency antimicrobial performance, overcome macromolecular material store and the life-time service process in contingent infectation of bacteria and the material problem of going mouldy;
3. use the inorganic silver series antibacterial agent, the polyvinyl chloride composite materials of acquisition has strong anti-microbial property, and antibiotic rate reaches more than 90%.
Embodiment
Environmentally-friendly antibacterial polyvinyl chloride composite material of the present invention, employed polyvinyl chloride mean polymerisation degree is 800～2500, the polyvinyl chloride of selecting the polymerization degree 1000 and 2300 among the embodiment for use as a comparison, the polyvinyl chloride of high-polymerization degree has higher mechanical strength.
The method that the present invention prepares environmentally-friendly antibacterial polyvinyl chloride composite material is: each component is carried out melt blending, and its blending condition is: melt temperature is 130～165 ℃, and screw speed is 200～400rpm.The concrete prescription of each embodiment sees also the prepared performance of composites parameter of each embodiment of table 1. and sees Table 2.
Table 1 environmentally-friendly antibacterial polyvinyl chloride composite material prescription
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative Examples | |
| PVC (polymerization degree 1000) | 100 | ?100 | ?- | ?- | ?- | ?- |
| PVC (polymerization degree 2300) | ?100 | ?100 | ?100 | ?100 | ||
| ?DINCH | 20 | ?10 | ?10 | ?10 | ?10 | ?10 |
| ?TOTM | ?45 | ?30 | ?45 | ?40 | ?45 | |
| ?BTHC | ?10 | |||||
| ?ACR | 5 | ?- | ?5 | ?- | ?2 | ?2.5 |
| ?MBS | - | ?5 | ?5 | ?5 | ?2 | ?2.5 |
| ?EVA | - | ?- | ?2 | |||
| Epoxy soybean oil | 5 | ?5 | ?5 | ?5 | ?5 | ?5 |
| The liquid calcium zinc stabilizer | - | ?3 | ?3 | ?2 | ?2 | ?- |
| The powder calcium zinc stabilizer | ?- | ?- | ?1 | ?1 | ?3 | |
| Paraffin | 1 | ?1 | ?1 | ?1 | ?1 | ?1 |
| Stearic acid | ?0.1 | ?0.1 | ?0.1 | ?0.1 | ?0.1 | |
| Calcium stearate | ?0.2 | ?0.2 | ?0.2 | ?0.2 | ||
| Zinic stearas | ?0.4 | ?0.4 | ?0.4 | ?0.4 | ||
| The glass carrying silver antimicrobials | 0.5 | ?- | ?1 | ?0.5 | ?1 | ?- |
| The zirconium phosphate carrying silver antimicrobials | - | ?2 | ?- | ?1 | ?- | ?- |
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative Examples | |
| The zeolite carrying silver antimicrobials | ?1 | ??1 |
(different the ninth of the ten Heavenly Stems ester) hexahydroaniline-1 among the present invention two, the total content of 2-adipic acid ester (DINCH), trimellitic acid three different monooctyl esters (TOTM), butyryl citric acid tri-n-hexyl ester (BTHC) softening agent is 20～60 weight parts.Table 1 has mainly provided DINCH softening agent and the compound use embodiment of TOTM, though the DINCH plasticization effect is good, its processibility is relatively poor, so the DINCH amount ratio TOTM among the embodiment is little.Find out that from table 2 data the increase of softening agent total content can reduce the hardness of material.
Contrasted glass among the embodiment and carried the anti-microbial property influence of silver and zirconium phosphate carrying silver antimicrobials polyvinyl chloride, from table 2, can find out, in the polyvinyl chloride system, use the polyvinyl chloride composite materials of glass carrying silver antimicrobials, its antibacterial effect is better than using the polyvinyl chloride composite materials of zirconium phosphate carrying silver antimicrobials.
Table 2 environmentally-friendly antibacterial polyvinyl chloride composite material performance
| Test event | Testing method | Prescription 1 | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 | No antiseptic-germicide adds prescription |
| Tensile strength (MPa) | ??GB/T?1040 | ??17.9 | ??15.8 | ??21.3 | ??19.3 | ??19.2 | ??18.9 |
| Elongation at break (%) | ??GB/T?1040 | ??287 | ??320 | ??275 | ??310 | ??289 | ??313 |
| Shore A hardness | ??GB/T?2411 | ??79 | ??69 | ??78 | ??72 | ??74 | ??71 |
| Intestinal bacteria antibiotic rate (%) | ??GB/T??21510 | ??98.3 | ??92.7 | ??99.0 | ??99.7 | ??99.1 | ??0 |
Claims (8)
1. environmentally-friendly antibacterial polyvinyl chloride composite material, form by polyvinyl chloride (PVC) RESINS, non-adjacent benzene micromolecular softening agent, modifier, non-toxic stabilizer, lubricant, inorganic silver series antibacterial agent, it is characterized in that each component of this matrix material and parts by weight thereof are:
100 parts of polyvinyl chloride (PVC) RESINS
20～60 parts in non-adjacent benzene class softening agent
3～20 parts of modifiers
1～10 part of non-toxic stabilizer
0.5～5 part of lubricant
0.5～3 part of antiseptic-germicide
Wherein, described polyvinyl chloride (PVC) RESINS mean polymerisation degree is 800～2500, and its remaining vinyl chloride monomer content is not more than 5ppm.
2. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1 is characterized in that described non-adjacent benzene class softening agent does not contain following group:
3. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 2, it is characterized in that described non-adjacent benzene micromolecular softening agent is: the hot diester of trimellitic acid three different monooctyl esters, hexanodioic acid, butyryl citric acid tri-n-hexyl ester, two (different the ninth of the ten Heavenly Stems ester) hexahydroaniline-1,2-adipic acid ester at least a.
4. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1 is characterized in that described stablizer is: at least a in powder calcium zinc stabilizer, liquid calcium zinc stabilizer, rare-earth stabilizer, the epoxy soybean oil.
5. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1 is characterized in that described modifier is: at least a in polyacrylate(s), methacrylic acid-butadiene-styrene terpolymer, ethylene-acetate enoate copolymer, the ethylene-propylene rubber(EPR).
6. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1 is characterized in that described lubricant is at least a in stearic acid, calcium stearate, Zinic stearas, paraffin, the polyethylene wax.
7. environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1 is characterized in that described inorganic silver series antibacterial agent is: at least a in glass carrying silver antimicrobials, zirconium phosphate carrying silver antimicrobials, the zeolite carrying silver antimicrobials.
8. method for preparing environmentally-friendly antibacterial polyvinyl chloride composite material according to claim 1, the concrete steps that it is characterized in that this method are: above-mentioned each component is carried out melt blending, the processing parameter of melt blending is: melt temperature is 130～165 ℃, and screw speed is 200～400rpm.
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| CN116218101A (en) * | 2023-03-30 | 2023-06-06 | 成都市新津事丰医疗器械有限公司 | Medical PVC composite material and preparation method and application thereof |
| CN117534924A (en) * | 2023-11-24 | 2024-02-09 | 浙江奕科新材料股份有限公司 | Light environment-friendly plastic floor and preparation method thereof |
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