CN109776920A - A kind of flame-proof polyethylene packaging film and preparation method thereof - Google Patents
A kind of flame-proof polyethylene packaging film and preparation method thereof Download PDFInfo
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- CN109776920A CN109776920A CN201910063985.5A CN201910063985A CN109776920A CN 109776920 A CN109776920 A CN 109776920A CN 201910063985 A CN201910063985 A CN 201910063985A CN 109776920 A CN109776920 A CN 109776920A
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Abstract
The present invention discloses a kind of flame-proof polyethylene packaging film and preparation method thereof, and flame-proof polyethylene packaging film includes following raw material components and parts by weight: 20~40 parts by weight of low density polyethylene (LDPE), 20~50 parts by weight of linear low density polyethylene, 10~20 parts by weight of polyvinylidene chloride, 5~20 parts by weight of magnesium salt whisker, 5~10 parts by weight of glass fibre, 2~5 parts by weight of dispersed lubricant, 0.5~3 parts by weight of coupling agent, 0.5~1 parts by weight of antioxidant.Flame-proof polyethylene packaging film disclosed by the invention can improve the anti-flammability of material in the case where mechanical performance changes less, expand polyethylene film product in the application range of certain industries.
Description
Technical field
The invention belongs to packaging film manufacturing technology fields, and in particular to a kind of flame-proof polyethylene packaging film and its preparation side
Method.
Background technique
With the rapid development of economy, polyethylene packaging material is obtained due to its excellent processability and mechanical performance
More and more extensive utilization.Currently, Chinese invention patent CN102816368A discloses a kind of easily peelable packaging film, have
Stronger tensile strength and elongation, but anti-flammability is relatively poor.Since the firing resistance of polyethylene is poor, oxygen index (OI) is low, only
It is 17.4%, belongs to combustible material.In burning, heat release rate is big, calorific value is high, easily propagating flame, causes fire, these
Significantly limit use of the polyethylene film product in the industries such as electric appliance, chemical industry, machinery, military products.Therefore, it is necessary to develop one
Kind has the polyethylene packaging material compared with high flame resistance, can be with further expansion operation strategies.
Summary of the invention
It, can be with the technical problem to be solved by the invention is to provide a kind of flame-proof polyethylene packaging film and preparation method thereof
The technical issues of solving polyethylene packaging film poor fire in the prior art.
In order to solve the above technical problems, the technical solution adopted by the present invention: a kind of flame-proof polyethylene packaging film, feature exist
In the flame-proof polyethylene packaging film includes following raw material components and parts by weight:
Preferably, melt index of the low density polyethylene (LDPE) under 190 DEG C, 2.16kg is 0.5~1.0g/10min, close
Spend range 0.915-0.925g/cm.
Preferably, melt index of the linear low density polyethylene under 190 DEG C, 2.16kg is 1.5~3.0g/
10min, density range 0.920-0.930g/cm.
Preferably, the magnesium salt whisker is MgSO4.5Mg(OH)2.3H2O, the diameter of whiskers of magnesium salt whisker less than 1.0 μm,
A length of 20~80 μm of whisker.
Preferably, the dispersed lubricant is that polyethylene wax, paraffin, stearic acid, zinc stearate or N-N ' ethylene are double stearic
Any one in amide.
Preferably, the coupling agent is any one in aluminate coupling agent, titanate coupling agent or boric acid ester coupler
Kind.
Preferably, the antioxidant is antioxidant 246, antioxidant 1076, antioxidant 1010 or antioxidant
One of 168 or combination.
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: weighing low density polyethylene (LDPE), linear low density polyethylene respectively according to the parts by weight of each raw material, gather inclined two
Vinyl chloride, magnesium salt whisker, glass fibre, dispersed lubricant, coupling agent and antioxidant；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by the dispersed lubricant, coupling agent of part in premix 1 and linear low density polyethylene, parts by weight, with
And the antioxidant of part is added in kneader and carries out mixed on low speed in parts by weight, obtains mixing 1；
Step 3: mixing 1 being added in double screw extruder and is squeezed out, squeezes out material strip after cooling, dry into pelleter
It is granulated, obtains compounding material 1；
Step 4: by remaining dispersed lubricant, remaining antioxygen in compounding material 1, low density polyethylene (LDPE) and parts by weight
Agent is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine through blow molding, traction and winding film forming, obtains fire-retardant
Polyethylene packaging film.
Beneficial effects of the present invention: flame-proof polyethylene packaging film disclosed by the invention is by introducing inorganic fire retardants and organic
Fire retardant, improves the oxygen index (OI) of material, and then achievees the effect that overall flame；Flame-proof polyethylene packaging film disclosed by the invention can
To improve the anti-flammability of material in the case where mechanical performance variation is little, expand polyethylene film product answering in certain industries
Use range.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of flame-proof polyethylene packaging film, flame-proof polyethylene packaging film include following raw material components and parts by weight:
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: it is linear low close to weigh 20 parts by weight low density polyethylene (LDPE)s, 50 parts by weight respectively according to the parts by weight of each raw material
Spend polyethylene, 10 parts by weight polyvinylidene chloride, 10 parts by weight magnesium salt whiskers, 5 parts by weight of glass fiber, 3 parts by weight N-N ' second
Support bis-stearamides, 1 parts by weight, three iso stearate isopropyl titanate and 1 parts by weight antioxidant 246；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by premix 1 and linear low density polyethylene, 2 parts by weight N-N ' ethylene bis stearamides, three different hard esters
Sour isopropyl titanate and 0.5 parts by weight antioxidant 246 are added in kneader and carry out mixed on low speed, obtain mixing 1；
Step 3: mixing 1 is added in double screw extruder and is squeezed out, material strip is squeezed out and is cooled to room temperature by circulating water chennel,
Enter pelleter after Hairdryer is dry to be granulated, obtains compounding material 1；
Step 4: will compounding material 1,1 parts by weight N-N ' ethylene bis stearamide in low density polyethylene (LDPE) and parts by weight,
0.5 parts by weight antioxidant 246 is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine and is blow molded, is drawn
It forms a film with winding, obtains flame-proof polyethylene packaging film.
Embodiment 2:
A kind of flame-proof polyethylene packaging film, flame-proof polyethylene packaging film include following raw material components and parts by weight:
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: it is linear low close to weigh 40 parts by weight low density polyethylene (LDPE)s, 30 parts by weight respectively according to the parts by weight of each raw material
Spend polyethylene, 10 parts by weight polyvinylidene chloride, 10 parts by weight magnesium salt whiskers, 5 parts by weight of glass fiber, 3 parts by weight N-N ' second
Support bis-stearamides, 1 parts by weight, three iso stearate isopropyl titanate and 1 parts by weight antioxidant 1076；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by premix 1 and linear low density polyethylene, 2 parts by weight N-N ' ethylene bis stearamides, three different hard esters
Sour isopropyl titanate and 0.5 parts by weight antioxidant 1076 are added in kneader and carry out mixed on low speed, obtain mixing 1；
Step 3: mixing 1 is added in double screw extruder and is squeezed out, material strip is squeezed out and is cooled to room temperature by circulating water chennel,
Enter pelleter after Hairdryer is dry to be granulated, obtains compounding material 1；
Step 4: will compounding material 1,1 parts by weight N-N ' ethylene bis stearamide in low density polyethylene (LDPE) and parts by weight,
0.5 parts by weight antioxidant 1076 is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine and is blow molded, is drawn
It forms a film with winding, obtains flame-proof polyethylene packaging film.
Embodiment 3:
A kind of flame-proof polyethylene packaging film, flame-proof polyethylene packaging film include following raw material components and parts by weight:
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: it is linear low close to weigh 22 parts by weight low density polyethylene (LDPE)s, 20 parts by weight respectively according to the parts by weight of each raw material
Spend polyethylene, 20 parts by weight polyvinylidene chloride, 20 parts by weight magnesium salt whiskers, 10 parts by weight of glass fiber, 4.5 parts by weight N-N '
Ethylene bis stearamide, 2.5 parts by weight, three iso stearate isopropyl titanate and 1 parts by weight antioxidant 1010；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by premix 1 and linear low density polyethylene, 4 parts by weight N-N ' ethylene bis stearamides, three different hard esters
Sour isopropyl titanate and 0.5 parts by weight antioxidant 1010 are added in kneader and carry out mixed on low speed, obtain mixing 1；
Step 3: mixing 1 is added in double screw extruder and is squeezed out, material strip is squeezed out and is cooled to room temperature by circulating water chennel,
Enter pelleter after Hairdryer is dry to be granulated, obtains compounding material 1；
Step 4: will compounding material 1,0.5 parts by weight N-N ' ethylene bis stearamide in low density polyethylene (LDPE) and parts by weight,
0.5 parts by weight antioxidant 1010 is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine and is blow molded, is drawn
It forms a film with winding, obtains flame-proof polyethylene packaging film.
Embodiment 4:
A kind of flame-proof polyethylene packaging film, flame-proof polyethylene packaging film include following raw material components and parts by weight:
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: it is linear low close to weigh 25 parts by weight low density polyethylene (LDPE)s, 40 parts by weight respectively according to the parts by weight of each raw material
Spend polyethylene, 20 parts by weight polyvinylidene chloride, 5 parts by weight magnesium salt whiskers, 5 parts by weight of glass fiber, 2.5 parts by weight N-N ' second
Support bis-stearamides, 2 parts by weight, three iso stearate isopropyl titanate and 0.5 parts by weight antioxidant 168；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by premix 1 and linear low density polyethylene, 2 parts by weight N-N ' ethylene bis stearamides, three different hard esters
Sour isopropyl titanate and 0.4 parts by weight antioxidant 168 are added in kneader and carry out mixed on low speed, obtain mixing 1；
Step 3: mixing 1 is added in double screw extruder and is squeezed out, material strip is squeezed out and is cooled to room temperature by circulating water chennel,
Enter pelleter after Hairdryer is dry to be granulated, obtains compounding material 1；
Step 4: will compounding material 1,0.5 parts by weight N-N ' ethylene bis stearamide in low density polyethylene (LDPE) and parts by weight,
0.1 parts by weight antioxidant 168 is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine and is blow molded, is drawn
It forms a film with winding, obtains flame-proof polyethylene packaging film.
Embodiment 5:
A kind of flame-proof polyethylene packaging film, flame-proof polyethylene packaging film include following raw material components and parts by weight:
A kind of preparation method of flame-proof polyethylene packaging film, comprising the following steps:
Step 1: it is linear low close to weigh 20 parts by weight low density polyethylene (LDPE)s, 50 parts by weight respectively according to the parts by weight of each raw material
Spend polyethylene, 10 parts by weight polyvinylidene chloride, 5 parts by weight magnesium salt whiskers, 10 parts by weight of glass fiber, 3 parts by weight N-N ' second
Support bis-stearamides, 1 parts by weight, three iso stearate isopropyl titanate and 1 parts by weight antioxidant 246；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is obtained
Premix 1, then by premix 1 and linear low density polyethylene, 2 parts by weight N-N ' ethylene bis stearamides, three different hard esters
Sour isopropyl titanate and 0.5 parts by weight antioxidant 246 are added in kneader and carry out mixed on low speed, obtain mixing 1；
Step 3: mixing 1 is added in double screw extruder and is squeezed out, material strip is squeezed out and is cooled to room temperature by circulating water chennel,
Enter pelleter after Hairdryer is dry to be granulated, obtains compounding material 1；
Step 4: will compounding material 1,1 parts by weight N-N ' ethylene bis stearamide in low density polyethylene (LDPE) and parts by weight,
0.5 parts by weight antioxidant 246 is added in high-speed mixer and is uniformly mixed, and is then added in inflation film manufacturing machine and is blow molded, is drawn
It forms a film with winding, obtains flame-proof polyethylene packaging film.
Anti-flammability and Measuring Mechanical Properties are carried out to degradable packaging film obtained, test result is as follows:
Remarks: flame retardant test standard according to GB/T2406.2-2009 " plastics with oxygen index method measure burning behavior " into
Row, the higher Flame Retardancy of oxygen index (OI) is better, otherwise the lower Flame Retardancy of oxygen index (OI) is poorer.
Flame-proof polyethylene packaging film prepared by the present invention can be accomplished in machinery it can be seen from above-mentioned the performance test results
The anti-flammability that material is improved in the case that performance change is little expands polyethylene film product in the application range of certain industries.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of flame-proof polyethylene packaging film, which is characterized in that the flame-proof polyethylene packaging film include following raw material components and
Parts by weight:
2. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the low density polyethylene (LDPE) at 190 DEG C,
Melt index under 2.16kg is 0.5~1.0g/10min, density range 0.915-0.925g/cm.
3. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the linear low density polyethylene is 190
DEG C, the melt index under 2.16kg is 1.5~3.0g/10min, density range 0.920-0.930g/cm.
4. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the magnesium salt whisker is MgSO4.5Mg
(OH)2.3H2O, the diameter of whiskers of magnesium salt whisker is less than 1.0 μm, and a length of 20~80 μm of whisker.
5. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the dispersed lubricant be polyethylene wax,
Any one in paraffin, stearic acid, zinc stearate or N-N ' ethylene bis stearamide.
6. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the coupling agent be aluminate coupling agent,
Any one in titanate coupling agent or boric acid ester coupler.
7. flame-proof polyethylene packaging film according to claim 1, which is characterized in that the antioxidant be antioxidant 246,
One of antioxidant 1076, antioxidant 1010 or antioxidant 168 or combination.
8. the preparation method of any one flame-proof polyethylene packaging film according to claim 1~7, which is characterized in that including
Following steps:
Step 1: weighing low density polyethylene (LDPE), linear low density polyethylene respectively according to the parts by weight of each raw material, gather inclined two chloroethene
Alkene, magnesium salt whisker, glass fibre, dispersed lubricant, coupling agent and antioxidant；
Step 2: magnesium salt whisker, glass fibre, polyvinylidene chloride being added in high-speed mixer and are uniformly mixed, is premixed
Close material 1, then by dispersed lubricant, coupling agent, the Yi Jichong of part in premix 1 and linear low density polyethylene, parts by weight
The antioxidant of part, which is added in kneader, in amount part carries out mixed on low speed, obtains mixing 1；
Step 3: mixing 1 being added in double screw extruder and is squeezed out, material strip is squeezed out and is made after cooling, dry into pelleter
Grain obtains compounding material 1；
Step 4: remaining dispersed lubricant, remaining antioxidant in compounding material 1, low density polyethylene (LDPE) and parts by weight are added
Enter into high-speed mixer and be uniformly mixed, is then added in inflation film manufacturing machine through blow molding, traction and winding film forming, obtains fire-retardant poly- second
Alkene packaging film.
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