CN109721856A - Ternary polymerized polypropylene of aluminizing casting films resin combination - Google Patents
Ternary polymerized polypropylene of aluminizing casting films resin combination Download PDFInfo
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- CN109721856A CN109721856A CN201711024883.XA CN201711024883A CN109721856A CN 109721856 A CN109721856 A CN 109721856A CN 201711024883 A CN201711024883 A CN 201711024883A CN 109721856 A CN109721856 A CN 109721856A
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- polymerized polypropylene
- ternary polymerized
- casting films
- resin combination
- antioxidant
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Abstract
It aluminizes ternary polymerized polypropylene casting films resin combination, is made of the raw material of following parts by weight: 1000 parts of ternary polymerized polypropylene resin the present invention relates to one kind；Antioxidant 1:1.0~1.6 part；Antioxidant 2:0.5~1.0 part；Halogen-absorber: 0.15~0.5 part；Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5~10wt%1- butylene, 0.5~1.5wt% ethylene, remaining is propylene.Under the premise of ternary polymerized polypropylene resin combination of the invention is able to satisfy the processing performance of food-grade aluminizer, performance of aluminizing, optical property, Thermoadhesive energy, also there is excellent impact strength, rigid and lower n-hexane extract, fully meet high-end casting films packaging producer to casting films production requirement of aluminizing.
Description
Technical field
The invention belongs to high molecular material acrylic resin technical fields, and in particular to one kind is exclusively used in manufacture and aluminizes poly- third
The polypropylene resin composite of alkene casting films.
Background technique
Aluminize polypropylene casting film (Metalize cast polypropylene；It MCPP) is to pass through stream in plastic cement industry
Prolong extrusion process and through a kind of vacuum aluminum-coated manufactured polypropylene film.Other are thin by MCPP and LLDPE, LDPE, HDPE, PET etc.
Film is compared, and cost is lower, and yield is higher, higher than PE stiffness of thin film, has excellent aqueous vapor and peculiar smell barrier property, is able to satisfy general
Wet etc. requirement of heat-resisting, chemically-resistant, wear-resisting, resistance oxygen, resistance, is commonly used as the fields such as food packaging.
In recent years, continually developing with external MCPP PP Pipe Compound, the rapid development of casting apparatus technology, application field
Constantly developing, MCPP film oneself become most fast one of the film of development trend in plastic film, it is estimated that the coming years
MCPP market demand will keep 10% or more speed rapid growth.
As food packaging MCPP PP Pipe Compound, also require lower heat-sealing temperature to mention other than specific physicochemical property
The heat seal strength of high product.The prior art generally use method for ternary polymerization manufacture MCPP PP Pipe Compound, polymerization when introduce 2~
3% comonomer 1- butylene and ethylene is copolymerized with propylene, and usual ethylene contents are higher than 1- butylene, due to comonomer
It introduces, reduces the crystal property of material, fusing point is remarkably decreased, and heat sealability is enhanced, but low molecular weight in copolymer
Often ethylene contents are higher for part, increase the content of the random object of low molecule in resin, the n-hexane extract of product is caused to begin
It is higher eventually, it limits its scope of application, especially in food packaging applications.
In addition, MCPP PP Pipe Compound also requires strict control various additives, and such as: slipping agent, opening agent and antistatic agent
Deng to prevent to migrate, influencing the quality of aluminizer, therefore, MCPP is more demanding to raw material, currently on the market main board
Number there are FL7540L, FL7641L etc. of Singapore TPC, the MCPP PP Pipe Compound that the country meets this condition is also seldom.
Summary of the invention
It aluminizes ternary polymerized polypropylene casting films resin combination the purpose of the present invention is to provide a kind of high-performance.
High-performance provided by the invention is aluminized ternary polymerized polypropylene casting films resin combination, mainly by changing altogether
Polycondensation monomer ratio is aided with a kind of high-performance made of a certain proportion of antioxidant and halogen-absorber and aluminizes ternary polymerized polypropylene
Casting films resin combination.The technical problem to be solved by the present invention is to guarantee that the composition possesses curtain coating produced of aluminizing
It is also strong with excellent impact under the premise of film has good processing performance, performance of aluminizing, optical property, Thermoadhesive energy
Degree, rigid and lower n-hexane extract meet high-end casting films packaging producer to casting films production requirement of aluminizing.
The present invention is realized by the following technologies:
One kind is aluminized ternary polymerized polypropylene casting films resin combination, is made of the raw material of following parts by weight:
Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5~10wt%1-
Butylene, 0.5~1.5wt% ethylene, remaining is propylene.
Preferably, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5~7wt%1-
Butylene, 1.2~1.5wt% ethylene, remaining is propylene.
Preferably, the antioxidant 1 is phenolic antioxidant；Antioxidant 2 is phosphite ester antioxidant.
Preferably, the phenolic antioxidant is four [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythrites
Ester；The phosphite ester antioxidant is phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
Preferably, the halogen-absorber is calcium stearate.
Preferably, the ternary polymerized polypropylene casting films resin combination of aluminizing, is made of the raw material of following parts by weight:
Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5%1- butylene,
1.5wt% ethylene, remaining is propylene.
Preferably, the ternary polymerized polypropylene casting films resin combination of aluminizing, is made of the raw material of following parts by weight:
Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 7%1- butylene,
1.2wt% ethylene, remaining is propylene.
Key of the invention is the change of comonomer 1- butylene, propane ratio.In the present invention, pass through a large number of experiments
It was found that: when comonomer 1- butene content is higher than 3.5 times of ethylene contents or more, made ternary polymerized polypropylene resin
Not only there is good fluidity of molten, the transparency, lower fusing point, but also there is excellent impact strength, rigidity, and anticipate
The n-hexane extract of outer discovery copolymer resins declines to a great extent.Compared with prior art, has the copolymerization list there are two carbon short-chain branch
Body 1- butene content is multiplied, and reduces the crystal property of material, is remarkably decreased the fusing point of material, heat sealability is able to
While enhancing, the steric hindrance between polymer macromolecule is effectively increased, becomes the precipitation of the random object of low molecule in resin
It is difficult.Furthermore the short-chain branch increase in copolymer also significantly improves the mechanical property of material.It can using compound antioxidant system
Enough processing stabilities, thermo-oxidative ageing and long-time service property are provided for material.The impact strength raising 20~70% of resin,
Bending modulus, which improves 30~60%, n-hexane extract, reduces by 70% or more, fully meets high-end casting films packaging producer to plating
Aluminium casting films production requirement.
The present invention has the advantage that compared with prior art
Ternary polymerized polypropylene resin combination of the invention is able to satisfy the processing performance of food-grade aluminizer, aluminizing property
Under the premise of energy, optical property, Thermoadhesive energy, also there is excellent impact strength, rigid and lower n-hexane extract,
High-end casting films packaging producer is fully met to casting films production requirement of aluminizing.
The aluminize melt mass flow rate of ternary polymerized polypropylene casting films resin combination of high-performance of the invention is
5.0~8.5g/10min, bending modulus are 920~1130MPa, and (23 DEG C) of simply supported beam notch impact strength are 8.8~12.2KJ/
m2, 1.12~1.52wt% of n-hexane extract, 200~250ug/g of ash content, yellow colour index -3.0~-0.1.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
The raw materials used source of following embodiment is described as follows:
Antioxidant 1: anti-oxidant Irganox 1010, BASF；
Antioxidant 2: antioxidant Irgafos168, BASF；
Halogen-absorber: calcium stearate is provided by Xinxin Chemical Co., Ltd., Shanghai；
DQC catalyst: DQC-401, Sinopec Beijing Ao Da branch company；
Triethyl aluminum TEAL: Albemarle Corporation, the U.S.；
Electron donor DONOR-D: Shandong Lu Jing Chemical Co., Ltd..
Embodiment 1-8
It is matched by shown in table 1, prepares ternary polymerized polypropylene casting films resin combination of aluminizing:
1) ternary polymerized polypropylene resin binder is prepared
Using propylene as primary raw material, 1- butylene, ethylene are comonomer, in atmosphere of hydrogen, under the effect of the catalyst
(catalyst is made of DQC catalyst, triethyl aluminum TEAL and electron donor DONOR-D, three and propylene feed ratio are as follows: DQC is urged
Agent: triethyl aluminum TEAL: electron donor DONOR-D: propylene=0.035g:0.30g:0.085g:1000g), pre-polymerization is first carried out
Reaction is closed, then copolyreaction is carried out in annular-pipe reactor and obtains ternary polymerized polypropylene resin binder；Wherein, prepolymerization
Reaction condition are as follows: reaction temperature is 15 ± l DEG C, and reaction pressure is 3.4 ± 0.1MPa, reaction time 30min；Copolyreaction item
Part are as follows: 65 ± 1 DEG C of temperature, pressure 3.4Mpa, density of hydrogen is 800~1500ppm, reaction time: 1.5 hours；
2) ternary polymerized polypropylene resin binder, antioxidant 1, antioxidant 2 and halogen-absorber prepared by step 1 are existed
It is mixed under normal temperature and pressure, incorporation time 2~4 minutes, is then granulated using double screw extruder, temperature control exists
150~230 DEG C, screw speed is 200~300 revs/min, obtains ternary polymerized polypropylene casting films resin combination of aluminizing.
To aluminizing, ternary polymerized polypropylene curtain coating film resin carries out quantitative measurement analysis, the results are shown in Table 2.
Table 1
| 1- butylene | Ethylene | Propylene | Antioxidant 1 | Antioxidant 2 | Halogen-absorber | |
| Comparative example | 20 | 30 | 950 | 1.2 | 0.6 | 0.2 |
| Embodiment 1 | 55 | 5 | 940 | 1.0 | 0.5 | 0.2 |
| Embodiment 2 | 70 | 8 | 922 | 1.2 | 0.7 | 0.3 |
| Embodiment 3 | 85 | 12 | 903 | 1.4 | 0.7 | 0.5 |
| Embodiment 4 | 100 | 15 | 885 | 1.6 | 1.0 | 0.5 |
| Embodiment 5 | 55 | 15 | 930 | 1.2 | 0.6 | 0.4 |
| Embodiment 6 | 70 | 12 | 918 | 1.2 | 0.6 | 0.3 |
| Embodiment 7 | 85 | 8 | 907 | 1.0 | 0.8 | 0.3 |
| Embodiment 8 | 100 | 5 | 895 | 0.8 | 0.6 | 0.15 |
Evaluation
Embodiment 1-8 and the comparative example resin prepared are subjected to quantitative measurement analysis, testing standard is as follows, test
The results are shown in Table 2.
Table 2.
In table 2, the composition of embodiment 5,6 has more preferably comprehensive performance, is mainly reflected in when aluminizer produces
Stability, the mechanical property of aluminizer and service performance.
The preferred embodiment of the present invention has been described in detail above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent on the premise of not violating the inventive spirit of the present invention
Variation or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (7)
- The ternary polymerized polypropylene casting films resin combination 1. one kind is aluminized, is made of the raw material of following parts by weight:Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5~10wt%1- fourth Alkene, 0.5~1.5wt% ethylene, remaining is propylene.
- The ternary polymerized polypropylene casting films resin combination 2. one kind according to claim 1 is aluminized, it is characterised in that: institute It states ternary polymerized polypropylene resin to consist of the following components in percentage by weight: 5.5~7wt%1- butylene, 1.2~1.5wt% Ethylene, remaining is propylene.
- The ternary polymerized polypropylene casting films resin combination 3. one kind according to claim 1 is aluminized, it is characterised in that: institute The antioxidant 1 stated is phenolic antioxidant；Antioxidant 2 is phosphite ester antioxidant.
- The ternary polymerized polypropylene casting films resin combination 4. one kind according to claim 3 is aluminized, it is characterised in that: institute The phenolic antioxidant stated is four [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters；The phosphite ester Kind antioxidant is phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
- The ternary polymerized polypropylene casting films resin combination 5. one kind according to claim 1 is aluminized, it is characterised in that: institute The halogen-absorber stated is calcium stearate.
- The ternary polymerized polypropylene casting films resin combination 6. one kind according to claim 1 is aluminized, it is characterised in that: institute Ternary polymerized polypropylene casting films resin combination of aluminizing is stated, is made of the raw material of following parts by weight:Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 5.5%1- butylene, 1.5wt% ethylene, remaining is propylene.
- The ternary polymerized polypropylene casting films resin combination 7. one kind according to claim 1 is aluminized, it is characterised in that: institute Ternary polymerized polypropylene casting films resin combination of aluminizing is stated, is made of the raw material of following parts by weight:Wherein, the ternary polymerized polypropylene resin consists of the following components in percentage by weight: 7%1- butylene, 1.2wt% Ethylene, remaining is propylene.
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