CN108752685A - A kind of antibacterial refractory polyethylene film and preparation method - Google Patents
A kind of antibacterial refractory polyethylene film and preparation method Download PDFInfo
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Abstract
The invention discloses a kind of antibacterial refractory polyethylene film and preparation methods, include the raw material of following parts by weight：0.5-2 parts of 100 parts of PE, 20-30 parts of polyisobutene, 3-5 parts of oyster shell whiting, 5-10 parts of nano-calcium carbonate, 1-3 parts of graphene, 0.5-1.5 parts of phytic acid, 1-2 parts of octaphenyl cagelike silsesquioxane, 1-3 parts of coupling agent, 2-4 parts of processing aid, 0.5-1.5 parts of complex antimicrobials and antioxidant.The present invention uses the coordinative role of unique composition of raw materials and each component, compatibility is good, the polyethylene film of preparation has many advantages, such as that high intensity, heat-resisting, high temperature resistant, stability are good, non-aging, antibacterial effect is strong, ageing-resistant, and processing performance is good, it is simple for process, cost reduction is cheap, has good ink adhesion and pigment adhesive force, not easily to fall off.
Description
Technical field
The invention belongs to plastics arts, it is specifically related to a kind of antibacterial refractory polyethylene film and preparation method.
Background technology
Polyethylene (polyethylene, abbreviation PE) is a kind of aggregated thermoplastic resin obtained of ethylene.In industry
On, also include the copolymer of ethylene and a small amount of alpha-olefin.Polyethylene is odorless, nontoxic, feel ceraceous, has excellent lower temperature resistance
Can (reachable -100 DEG C~-70 DEG C of minimum temperature in use), chemical stability is good, be resistant to most of soda acids erosion (intolerant to
The acid of oxidizing property).Common solvent is not dissolved under room temperature, water imbibition is small, and electrical insulating property is excellent, therefore is widely used at present
In all trades and professions, polyethylene film is the most widely used high molecular material in the world today, has been widely used in medicine, has changed
The industries such as work, food, electronics, printing, but polyethylene film also has the deficiency of some application aspects, as the heatproof of polyethylene is capable not
Height, existing market
On the general temperature in use of polyethylene film that uses be no more than 100 DEG C, therefore polyethylene film will in some special dimensions
It being restricted, while under prolonged illumination condition, phenomena such as polyethylene film surface will appear discoloration, film aging is accelerated,
Service life thus is affected, these aspects all greatly limit the application of polyethylene film.
Polyethylene film is safe and non-toxic, permeable, ventilative moderate, and packaged product can be made in production and processing, fortune
It is not contaminated in defeated, storage process, it is packed suitable for food fresh keeping.But in the packet applied to the food containing grease type
When dress, some of which small molecule processing aid (such as flexibility agent) can migrate, and cause food safety hazards.In addition, single
One PE films do not have antibacterial and oxidation resistant functionality.Continuous enhancing with people to health and environmental consciousness, to day
The various plastics such as frequent dish bowl, household electrical appliances are often contacted in life and propose the demand of " antibacterial, sterilization ", therefore polyethylene is provided
Antibacterial film is the demand in current market.
Invention content
Present invention aims at a kind of high temperature resistant of offer, strong, ageing-resistant, excellent in mechanical performance the polyethylene films of antimicrobial form
And preparation method.
In order to achieve the goal above, the technical solution adopted by the present invention is as follows：
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 20-30 parts of polyisobutene,
3-5 parts of oyster shell whiting, 5-10 parts of nano-calcium carbonate, 1-3 parts of graphene, 0.5-1.5 parts of phytic acid, octaphenyl cagelike silsesquioxane 1-
0.5-2 parts of 2 parts, 1-3 parts of coupling agent, 2-4 parts of processing aid, 0.5-1.5 parts of complex antimicrobials and antioxidant.
Further, the coupling agent is 2-3 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy sesquialter
Siloxanes forms.
Further, the complex antimicrobials are by mass ratio 1:1-3 is lanthana and titanium dioxide composition.
Further, the processing aid is 1 by mass ratio:The castor oil polyoxyethylene ether and maleic anhydride of 2-4 is grafted
PE waxes form.
Further, the antioxidant be CA antioxidants, 1010 antioxidants and one kind in 1076 antioxidants or
Numerous compositions.
The preparation method of antibacterial refractory polyethylene film of the present invention, includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 20-30min carries out surface modification at being 80-100 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, in 80-100
It is kneaded 10-20min at DEG C, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.
Further, the temperature of the extruding pelletization is 200-220 DEG C, screw speed 300-500rpm.
Further, the temperature for squeezing out blown film is 200-220 DEG C, screw speed 20-30rpm, and hauling speed is
20-30m/min。
Compared with prior art, it advantages of the present invention and has the beneficial effect that：
1, for the present invention using the coordinative role of unique composition of raw materials and each component, compatibility is good, the polyethylene film tool of preparation
Have the advantages that high intensity, heat-resisting, high temperature resistant, stability are good, non-aging, antibacterial effect is strong, ageing-resistant, and processing performance is good,
Simple for process, cost reduction is cheap, has good ink adhesion and pigment adhesive force, not easily to fall off.
2, the present invention has widened the industrial chain of shell using oyster shell whiting as raw material, and oyster shell whiting has Escherichia coli extremely strong antibacterial
And bactericidal effect, in addition also there is remarkable result to salmonella, yellow glucose fungus, and have the function of anti-corrosion, anti-tick, shellfish
Shell powder can also absorb the harmful substances such as formaldehyde, benzene in air.
3, present invention octaphenyl cagelike silsesquioxane and phytic acid modified PE, polyisobutene, oyster shell whiting, nano-calcium carbonate
And graphene can be by forming covalent bond since octaphenyl cagelike silsesquioxane molecule contains silicon and multiple organic groups
Combined with matrix surface, heat resistance, the inoxidizability of material surface not only can be improved, at the same can improve inorganic pigment and PE,
The compatibility and dispersibility of polyisobutene, and then improve the compression strength of plastics；Phytic acid be modified can with PE, polyisobutene and other
The compatibility of component, and the ageing-resistant and heat resistance of film can be improved.
4, using lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane as coupling agent, be one kind has the present invention
The organic matter of the various actives group such as hydroxyl, carboxyl, methoxyl group, carbonyl, itself can form network structure, the work in network structure
Property group can with the effect of resin, formed dual-network structure, improve the degree of cross linking and reinforcement, be introduced into polyethylene film
The better mechanical property of material, heat-resisting and ageing-resistant performance can be assigned.
5, the complex antimicrobials that the present invention is formed with lanthana and titanium dioxide, to large intestine bar under room temperature or high-temperature condition
Bacterium, gold staphylococcus, fungi etc. have significant antibacterial and fungistatic effect, and titanium dioxide can also improve the anti-of plastic film
Oxidisability closes resistance to ag(e)ing.
Specific implementation mode
With reference to specific embodiment, invention is further described in detail, but does not limit the scope of the invention and its answer
With.
Embodiment 1
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 25 parts of polyisobutene, shellfish
4 parts of shell powder, 7 parts of nano-calcium carbonate, 1.5 parts of graphene, 1 part of phytic acid, 1.5 parts of octaphenyl cagelike silsesquioxane, coupling agent 2
1 part of part, 3 parts of processing aid, 1.5 parts of complex antimicrobials and 1076 antioxidants.
The coupling agent is 3 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
The complex antimicrobials are by mass ratio 1:2 be lanthana and titanium dioxide composition.
The processing aid is 1 by mass ratio:3 castor oil polyoxyethylene ether and maleic anhydride grafting PE waxes composition.
Preparation method includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 25min carries out surface modification at being 90 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, at 100 DEG C
Lower mixing 10min, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.The temperature of the extruding pelletization is 210 DEG C, screw speed 300rpm.It is described squeeze out blown film temperature be
200 DEG C, screw speed 30rpm, hauling speed 25m/min.
Embodiment 2
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 30 parts of polyisobutene, shellfish
5 parts of shell powder, 9 parts of nano-calcium carbonate, 2 parts of graphene, 0.5 part of phytic acid, 2 parts of octaphenyl cagelike silsesquioxane, coupling agent 1.5
1 part of part, 3.5 parts of processing aid, 1.0 parts of complex antimicrobials and 1010 antioxidants.
The coupling agent is 2 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
The complex antimicrobials are by mass ratio 1:1 is lanthana and titanium dioxide composition.
The processing aid is 1 by mass ratio:3 castor oil polyoxyethylene ether and maleic anhydride grafting PE waxes composition.
Preparation method includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 30min carries out surface modification at being 80 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, at 90 DEG C
It is kneaded 20min, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.The temperature of the extruding pelletization is 200 DEG C, screw speed 500rpm.It is described squeeze out blown film temperature be
220 DEG C, screw speed 25rpm, hauling speed 20m/min.
Embodiment 3
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 20 parts of polyisobutene, shellfish
4 parts of shell powder, 5 parts of nano-calcium carbonate, 3 parts of graphene, 1.5 parts of phytic acid, 1 part of octaphenyl cagelike silsesquioxane, coupling agent 2.5
Part, 4 parts of processing aid, 0.8 part of complex antimicrobials and 1.5 parts of CA antioxidants.
The coupling agent is 3 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
The complex antimicrobials are by mass ratio 1:3 be lanthana and titanium dioxide composition.
The processing aid is 1 by mass ratio:2 castor oil polyoxyethylene ether and maleic anhydride grafting PE waxes composition.
Preparation method includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 20min carries out surface modification at being 90 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, at 100 DEG C
Lower mixing 10min, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.The temperature of the extruding pelletization is 210 DEG C, screw speed 300rpm.It is described squeeze out blown film temperature be
210 DEG C, screw speed 30rpm, hauling speed 25m/min.
Embodiment 4
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 30 parts of polyisobutene, shellfish
3 parts of shell powder, 8 parts of nano-calcium carbonate, 2.5 parts of graphene, 1.0 parts of phytic acid, 2 parts of octaphenyl cagelike silsesquioxane, coupling agent 1.5
1.5 parts of part, 3 parts of processing aid, 0.5 part of complex antimicrobials and 1010 antioxidants.
The coupling agent is 2 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
The complex antimicrobials are by mass ratio 1:1 is lanthana and titanium dioxide composition.
The processing aid is 1 by mass ratio:4 castor oil polyoxyethylene ether and maleic anhydride grafting PE waxes composition.
Preparation method includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 25min carries out surface modification at being 80 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, at 80 DEG C
It is kneaded 20min, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.The temperature of the extruding pelletization is 200 DEG C, screw speed 400rpm.It is described squeeze out blown film temperature be
220 DEG C, screw speed 20rpm, hauling speed 30m/min.
Embodiment 5
A kind of antibacterial refractory polyethylene film, includes the raw material of following parts by weight：100 parts of PE, 20 parts of polyisobutene, shellfish
5 parts of shell powder, 10 parts of nano-calcium carbonate, 1 part of graphene, 0.5 part of phytic acid, 2 parts of octaphenyl cagelike silsesquioxane, 3 parts of coupling agent,
1.5 parts of 2 parts of processing aid, 1 part of complex antimicrobials and 1076 antioxidants.
The coupling agent is 3 by mass ratio:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
The complex antimicrobials are by mass ratio 1:3 be lanthana and titanium dioxide composition.
The processing aid is 1 by mass ratio:3 castor oil polyoxyethylene ether and maleic anhydride grafting PE waxes composition.
Preparation method includes the following steps：
（1）Phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 30min carries out surface modification at being 90 DEG C in temperature, obtains modified mixture；
（2）Modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, at 100 DEG C
Lower mixing 15min, obtains mixed material；
（3）After mixed material is delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.The temperature of the extruding pelletization is 220 DEG C, screw speed 300rpm.It is described squeeze out blown film temperature be
220 DEG C, screw speed 25rpm, hauling speed 20m/min.
By polyethylene film prepared by embodiment 1-5 conventionally measure the tensile strength of batten, elongation at break,
1000h light agings（600Lux）Stretching strength retentivity, heat distortion temperature and for 24 hours to Escherichia coli, staphylococcus aureus
Sterilizing rate, test result are as shown in table 1.
Table 1：The performance test results of polyethylene film of the present invention
Learnt from above-mentioned test result, polyethylene film prepared by the present invention have high intensity, heat-resisting, high temperature resistant, stability it is good,
Non-aging, the advantages that antibacterial effect is strong, ageing-resistant, wide market.
Claims (8)
1. a kind of antibacterial refractory polyethylene film, it is characterised in that：Include the raw material of following parts by weight：
100 parts of PE, 20-30 parts of polyisobutene, 3-5 parts of oyster shell whiting, 5-10 parts of nano-calcium carbonate, 1-3 parts of graphene, phytic acid
0.5-1.5 parts, 1-2 parts of octaphenyl cagelike silsesquioxane, 1-3 parts of coupling agent, 2-4 parts of processing aid, complex antimicrobials 0.5-
1.5 parts and 0.5-2 parts of antioxidant.
2. antibacterial refractory polyethylene film according to claim 1, it is characterised in that：The coupling agent is by mass ratio
2-3:1 lignocellulose sodium and poly- aminopropyltriethoxy silsesquioxane composition.
3. antibacterial refractory polyethylene film according to claim 1, it is characterised in that：The complex antimicrobials are by quality
Than 1:1-3 is lanthana and titanium dioxide composition.
4. antibacterial refractory polyethylene film according to claim 1, it is characterised in that：The processing aid is by mass ratio
It is 1:Castor oil polyoxyethylene ether and maleic anhydride the grafting PE waxes composition of 2-4.
5. antibacterial refractory polyethylene film according to claim 1, it is characterised in that：The antioxidant is that CA is anti-oxidant
One or more compositions in agent, 1010 antioxidants and 1076 antioxidants.
6. the preparation method of antibacterial refractory polyethylene film as described in claim 1, it is characterised in that：Include the following steps：
(1) phytic acid and octaphenyl cage type silsesquioxane are added in PE, polyisobutene, oyster shell whiting, nano-calcium carbonate, graphene
Alkane, stirring 20-30min carries out surface modification at being 80-100 DEG C in temperature, obtains modified mixture；
(2) modified mixture, coupling agent, processing aid, complex antimicrobials and antioxidant are added into high kneading machine, in 80-100
It is kneaded 10-20min at DEG C, obtains mixed material；
(3) after mixed material being delivered to conical double screw extruder extruding pelletization, then with plastic film blowing machine squeeze out blown film to get
To polyethylene film.
7. the preparation method of antibacterial refractory polyethylene film according to claim 6, it is characterised in that：The extruding pelletization
Temperature be 200-220 DEG C, screw speed 300-500rpm.
8. the preparation method of antibacterial refractory polyethylene film according to claim 5, it is characterised in that：The extrusion blown film
Temperature be 200-220 DEG C, screw speed 20-30rpm, hauling speed 20-30m/min.
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| CN115093798A (en) * | 2022-07-14 | 2022-09-23 | 上海展通实业有限公司 | Antibacterial and antistatic high-transparency polyethylene protective film and preparation method thereof |
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2018
- 2018-04-25 CN CN201810381101.6A patent/CN108752685A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093798A (en) * | 2022-07-14 | 2022-09-23 | 上海展通实业有限公司 | Antibacterial and antistatic high-transparency polyethylene protective film and preparation method thereof |
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