CN110483870A - A kind of preparation of automobile interior decoration new waterproof film - Google Patents
A kind of preparation of automobile interior decoration new waterproof film Download PDFInfo
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- C08J3/00—Processes of treating or compounding macromolecular substances
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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Abstract
The invention belongs to waterproof roll technical field more particularly to a kind of preparations of automobile interior decoration new waterproof film.It the object of the present invention is to provide a kind of preparation of automobile interior decoration new waterproof film, can be made up of specific material and the mode of high-energy electron irradiation crosslinking Treatment, achieve the effect that coiled material high-effective water-proof.The present invention has waterproof membrane preparation process simple and effective, coiled material film flexibility and waterproofness greatly improve after high-energy electron irradiation crosslinking Treatment, anti-microbial property is prominent, environmentally protective, non-toxic and tasteless, small to the no damage to human body and whole preparation process environmental pollution advantage of waterproof membrane.
Description
Technical field
The invention belongs to waterproof roll technical field more particularly to a kind of preparations of automobile interior decoration new waterproof film.
Background technique
Automobile is one of indispensable vehicles in people's daily life, and car door waterproof membrane is as automotive sealing system
One of components, be the key components and parts for ensureing door sealing performance, there is important influence to the air-tightness of vehicle.If vapour
Vehicle waterproof is done well, then the service life of automobile can be greatly shortened.
In recent years, each field generally uses waterproof membrane, most of to use nanometer calcium carbonate for raw material, that there are waterproofness is poor,
Not the defects of resistance to acid and alkali.The waterproof performance for how improving automobile interior decoration is just worth innovation research.
Electron radiation crosslinked polyethylene (IXPE) waterproof membrane has isolation steam, improves product as high-efficiency environment friendly material
The effect of stability has become a kind of new material that automobile interior decoration enjoys great popularity at present.It is excellent in energy-saving and environmental protection and lightweight etc.
Under gesture feature, IXPE waterproof membrane will be well worth doing in automobile interior decoration.
Patent publication No. is CN101358004A, and publication date is that the Chinese invention patent of 2009.02.04 discloses one kind
IXPE electron radiation crosslinking polyethylene conductive foam and preparation method thereof.The IXPE electron radiation crosslinking polyethylene conductive foam
Ingredient include major ingredient low density polyethylene (LDPE), auxiliary material ethylene-vinyl acetate copolymer, azodicarbonamide foaming agent, poly- second
Alkene wax lubricating auxiliary agent, titanate coupling agent and conductive carbon black, by mixing processing, extrusion molding, crosslinking with radiation, foamable and
The techniques such as secondary operation produce IXPE electron radiation crosslinking polyethylene conductive foam.
But there is waterproof effect difference in the conducting foam in the patent of invention.
Summary of the invention
The object of the present invention is to provide a kind of preparations of automobile interior decoration new waterproof film, can pass through specific material group
At and high-energy electron irradiation crosslinking Treatment mode, achieve the effect that coiled material high-effective water-proof.The present invention has waterproof film preparation
Simple process is effective, and coiled material film flexibility and waterproofness greatly improve after high-energy electron irradiation crosslinking Treatment, and anti-microbial property is prominent,
Environmentally protective, non-toxic and tasteless, small to the no damage to human body and whole preparation process environmental pollution advantage of waterproof membrane.
The present invention solve the above problems the technical solution adopted is that: a kind of preparation of automobile interior decoration new waterproof film, it is described
Waterproof membrane includes following each component by weight: 50-90 parts of low density polyethylene (LDPE), 2-10 parts of foaming agent, 5-10 parts of toughener,
0.1-2 parts of antioxidant, 0.1-1 parts of lubricant, 0.1-0.5 parts of fungicide and help 0. 1-1 parts of film.
In the present invention, the foaming agent and toughener are for guaranteeing waterproof membrane basic flexibility and waterproofness, greatly
The big service life and waterproof effect for improving waterproof membrane, and the antioxidant, lubricant and help film for assisting waterproof
The preparation of film, guarantee it is basic prepare simple and convenient effect, the last fungicide makes the waterproof membrane have anti-microbial property
Prominent advantage can better meet the requirement that interior antibacterial uses.
Further preferred technical solution is: the low density polyethylene (LDPE) is that melt flow rate (MFR) is 0.75-6g/min
Low density polyethylene (LDPE)；The foaming agent is azodicarbonamide；The toughener is ethylene-vinyl acetate copolymer；It is described anti-
Oxidant is one or both of 1010 or DSTDP mixture.
Further preferred technical solution is: the lubricant is zinc stearate；The fungicide is organic or inorganic
One of salt or a variety of mixtures；It is described to help film for polyvinyl alcohol.
Further preferred technical solution is successively to include following preparation step:
S1, low density polyethylene (LDPE), foaming agent, toughener, antioxidant, lubricant, antibacterial agent are mixed in mixer and helps film
Agent is granulated and particle a and particle b is made；
S2, particle a and particle b in stirrer for mixing step S1, obtain mixture；
S3, the mixture in single screw extrusion machine in addition step S2, squeeze out and wind, obtain sheet material；
S4, high-energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains semi-finished product sheet material；
S5, foaming processing is carried out to the semi-finished product sheet material in step S4, obtains finished sheet.
In the present invention, the high-energy electron irradiation crosslinking Treatment, the crosslinking that can greatly improve polyethylene film itself are strong
Degree, finally increases flexibility and waterproofness when in use, and high-energy electron irradiation modifies Polyethylene Chain, improves the foaming of polyethylene film
Rate.
Further preferred technical solution is: in step S1, low density polyethylene (LDPE), foaming agent and antioxidant is equal
Even mixing is simultaneously kneaded, and 10 min are blended under the conditions of temperature is 110-130 DEG C and carry out mixing granulation, obtain particle a；By toughening
It agent, lubricant, antibacterial agent and helps film and low density polyethylene (LDPE) that 12 min are blended under the conditions of temperature is 120-130 DEG C to carry out
Mixing is granulated, and obtains particle b.
In the present invention, toughener, lubricant, antibacterial agent and film is helped, with the foaming agent and antioxidant point
Granulation is opened, the antioxidant of the foaming agent and alkoxide that avoid amides reduces lubricant and fungicide as organic salt
Distributing homogeneity in low density polyethylene (LDPE) system.
Further preferred technical solution is: in step S3, according to extrusion temperature difference in the single screw extrusion machine
Successively divide seven extrusion working regions, area's temperature is 150-160 DEG C, and two area's temperature are 140-150 DEG C, and three area's temperature are 120-
125 DEG C, four area's temperature are 110-120 DEG C, and five area's temperature are 110-115 DEG C, and six area's temperature are 100-110 DEG C, and seven area's temperature are
95-100 DEG C, die head temperature is 110-120 DEG C, and raw material is 3~5 min in the time of delivery of extruder.
Further preferred technical solution is: in step 4, the process conditions of the high-energy electron irradiation crosslinking Treatment
Are as follows: 2-2.5 Mev energy, the sheet material number of plies of irradiation are 6-8 layers, and surface sweeping width is 800-1000 mm, dosage 10-15
Mrad。
Further preferred technical solution is: in step 5, foaming processing in preheating section area's temperature be 60-65 DEG C,
Two area's temperature are 70-75 DEG C, three area's temperature are 80-90 DEG C；The mono- area's temperature of Duan that foams is 240-250 DEG C, two area's temperature are
240-250 DEG C, three area's temperature be 240-250 DEG C, four area's temperature are 220-240 DEG C, five area's temperature are 180-210 DEG C, six Qu Wen
Degree is 150-170 DEG C；It is 3.0m/min into piece speed, slice speed is 6.5-9 m/min, out into than for 2.2-3.
In the present invention, single screw rod squeezes out operation and foaming operation is all made of partition heating mode, between each area
Temperature carries out small size heating and cooling and adjusts and keep, compared to existing single area carry out heating and cooling dynamic regulation mode,
Then have the advantages that temperature is more stable, avoids the unnecessary error occurred when dynamic regulation.
Further preferred technical solution is: the fungicide includes silver nitrate, zinc sulfate, zinc nitrate and zinc acetate
One of or a variety of mixtures.
Further preferred technical solution is: further including sterilization auxiliary agent and metal salt complex protection in the fungicide
Agent, the sterilization auxiliary agent include aluminium oxide and L-TARTARIC ACID, and the metal salt complex protection agent includes adipic acid, the metal
Salt complex protection agent accounts for the 5-7.5% of the fungicide overall weight.
In the present embodiment, that there are distributing homogeneities in polyethylene system is poor for the silver salt of single organic or inorganic, zinc salt
The problem of, and sterilizing metal oxide in auxiliary agent is the crosslinking front end that salt is integrated in Polyethylene Chain, and the adipic acid is then
Further increase the complexation strength of salt fungicide, significantly effective work of the guarantee salt fungicide in entire polyethylene system
With, and the last L-TARTARIC ACID can provide an acidic micro-environment, guarantee aluminium oxide to the height of the salt fungicide
Imitate modification effect.
The present invention is made up of specific material and the mode of high-energy electron irradiation crosslinking Treatment, and it is efficient to reach coiled material
The effect of waterproof.The present invention has waterproof membrane preparation process simple and effective, and coiled material film is flexible after high-energy electron irradiation crosslinking Treatment
Property and waterproofness greatly improve, anti-microbial property is prominent, waterproof membrane is environmentally protective, it is non-toxic and tasteless, to no damage to human body, and it is entire
The small advantage of preparation process environmental pollution.
Specific embodiment
As described below is only presently preferred embodiments of the present invention, non-to be defined to the scope of the present invention.
Embodiment 1
A kind of preparation of automobile interior decoration new waterproof film, first prepares material, i.e. preparation low density polyethylene (LDPE) (LDPE) 87kg, foaming
Agent azodicarbonamide 5kg, toughener ethylene-vinyl acetate copolymer 5kg, 1010 antioxidant 1.5kg, lubricant stearic acid
Zinc 1kg, fungicide 0.3kg and help film polyvinyl alcohol 0.2kg.
Wherein fungicide is the mixture system of silver nitrate solution, alumina powder, L-TARTARIC ACID and adipic acid, described
The additive amount of adipic acid is 0.02kg.
Material is prepared according to the following steps after being ready to complete:
S1, foaming agent, antioxidant and part low density polyethylene (LDPE) are first added in mixer, are 110 DEG C of conditions in temperature
10 min of lower blending carry out mixing granulation, obtain particle a, then add toughener, lubricant, antibacterial agent, help film and
It is left all low density polyethylene (LDPE)s, 12 min is blended under the conditions of temperature is 120 DEG C and carry out mixing granulation, obtain particle b.
S2, particle a and particle b in stirrer for mixing step S1, obtain mixture.
S3, according to extrusion temperature difference successively divide seven extrusion working regions in single screw extrusion machine, area's temperature is
150 DEG C, two area's temperature are 140 DEG C, and three area's temperature are 120 DEG C, and four area's temperature are 110 DEG C, and five area's temperature are 110 DEG C, six Qu Wen
Degree is 100 DEG C, and seven area's temperature are 95 DEG C, and die head temperature is 110 DEG C, and raw material is 3 min in the time of delivery of extruder, is squeezed out simultaneously
Winding, obtains sheet material, and during seven partition heatings, temperature is successively reduced or do not increased at least, guarantees that front end mainly squeezes out
The extrusion heat insulation effect of effect and rear end.
S4, high-energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, semi-finished product sheet material is obtained, wherein irradiating work
Skill condition are as follows: 2Mev energy, the sheet material number of plies of irradiation are 6 layers, and surface sweeping width is 800 mm, and dosage is 10 Mrad.
S5, foaming processing is carried out to the semi-finished product sheet material in step S4, obtains finished sheet, wherein preheated in foaming processing
Mono- area's temperature of Duan is 60 DEG C, two area's temperature are 70 DEG C, three area's temperature are 80 DEG C；The mono- area's temperature of Duan that foams is 240 DEG C, 2nd area
Temperature is 240 DEG C, three area's temperature are 240 DEG C, four area's temperature are 220 DEG C, five area's temperature are 180 DEG C, six area's temperature are 150 DEG C；
Be 3.0m/min into piece speed, slice speed is 9 m/min, out into than be 3, and wherein using heating when preheating, foam when drop
The mode of temperature, further improves frothing percentage.
Finally finished sheet is tested for the property, shows that the new waterproof film in the present embodiment has flexibility and waterproof
The advantages of property significant effect.
Embodiment 2
A kind of preparation of automobile interior decoration new waterproof film, first prepares material, i.e. preparation low density polyethylene (LDPE) (LDPE) 75kg, foaming
Agent azodicarbonamide 7kg, toughener ethylene-vinyl acetate copolymer 7kg, DSTDP antioxidant 0.6kg, lubricant stearic acid
Zinc 0.6kg, fungicide 0.2kg and help film polyvinyl alcohol 0.8kg.
Wherein fungicide is the mixture system of silver nitrate solution, alumina powder, L-TARTARIC ACID and adipic acid, described
The additive amount of adipic acid is 0.014kg.
Material is prepared according to the following steps after being ready to complete:
S1, foaming agent, antioxidant and part low density polyethylene (LDPE) are first added in mixer, are 120 DEG C of conditions in temperature
10 min of lower blending carry out mixing granulation, obtain particle a, then add toughener, lubricant, antibacterial agent, help film and
It is left all low density polyethylene (LDPE)s, 12 min is blended under the conditions of temperature is 125 DEG C and carry out mixing granulation, obtain particle b.
S2, particle a and particle b in stirrer for mixing step S1, obtain mixture.
S3, according to extrusion temperature difference successively divide seven extrusion working regions in single screw extrusion machine, area's temperature is
155 DEG C, two area's temperature are 145 DEG C, and three area's temperature are 123 DEG C, and four area's temperature are 115 DEG C, and five area's temperature are 113 DEG C, six Qu Wen
Degree is 105 DEG C, and seven area's temperature are 98 DEG C, and die head temperature is 115 DEG C, and raw material is 4 min in the time of delivery of extruder, is squeezed out simultaneously
Winding, obtains sheet material, and during seven partition heatings, temperature is successively reduced or do not increased at least, guarantees that front end mainly squeezes out
The extrusion heat insulation effect of effect and rear end.
S4, high-energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, semi-finished product sheet material is obtained, wherein irradiating work
Skill condition are as follows: 2.2Mev energy, the sheet material number of plies of irradiation are 7 layers, and surface sweeping width is 900 mm, dosage 13Mrad.
S5, foaming processing is carried out to the semi-finished product sheet material in step S4, obtains finished sheet, wherein preheated in foaming processing
Mono- area's temperature of Duan is 63 DEG C, two area's temperature are 72 DEG C, three area's temperature are 85 DEG C；The mono- area's temperature of Duan that foams is 245 DEG C, 2nd area
Temperature is 230 DEG C, three area's temperature are 230 DEG C, four area's temperature are 225 DEG C, five area's temperature are 195 DEG C, six area's temperature are 155 DEG C；
It is 3.0m/min into piece speed, slice speed is 8 m/min, out into than being about 2.7, and wherein using heating, foaming when preheating
The mode of Shi Jiangwen, further improves frothing percentage.
Finally finished sheet is tested for the property, shows that the new waterproof film in the present embodiment has flexibility and waterproof
The advantages of property significant effect.
Embodiment 3
A kind of preparation of automobile interior decoration new waterproof film, first prepares material, i.e. preparation low density polyethylene (LDPE) (LDPE) 90kg, foaming
Agent azodicarbonamide 10kg, toughener ethylene-vinyl acetate copolymer 10kg, DSTDP antioxidant 2kg, lubricant stearic acid
Zinc 0.2kg, fungicide 0.5kg and help film polyvinyl alcohol 1kg.
Wherein fungicide is the mixture system of silver nitrate solution, alumina powder, L-TARTARIC ACID and adipic acid, described
The additive amount of adipic acid is 0.03kg.
Material is prepared according to the following steps after being ready to complete:
S1, foaming agent, antioxidant and part low density polyethylene (LDPE) are first added in mixer, are 130 DEG C of conditions in temperature
10 min of lower blending carry out mixing granulation, obtain particle a, then add toughener, lubricant, antibacterial agent, help film and
It is left all low density polyethylene (LDPE)s, 12 min is blended under the conditions of temperature is 130 DEG C and carry out mixing granulation, obtain particle b.
S2, particle a and particle b in stirrer for mixing step S1, obtain mixture.
S3, according to extrusion temperature difference successively divide seven extrusion working regions in single screw extrusion machine, area's temperature is
160 DEG C, two area's temperature are 150 DEG C, and three area's temperature are 125 DEG C, and four area's temperature are 120 DEG C, and five area's temperature are 115 DEG C, six Qu Wen
Degree is 110 DEG C, and seven area's temperature are 100 DEG C, and die head temperature is 120 DEG C, and raw material is 5min in the time of delivery of extruder, is squeezed out simultaneously
Winding, obtains sheet material, and during seven partition heatings, temperature is successively reduced or do not increased at least, guarantees that front end mainly squeezes out
The extrusion heat insulation effect of effect and rear end.
S4, high-energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, semi-finished product sheet material is obtained, wherein irradiating work
Skill condition are as follows: 2.5Mev energy, the sheet material number of plies of irradiation are 8 layers, and surface sweeping width is 1000 mm, dosage 15Mrad.
S5, foaming processing is carried out to the semi-finished product sheet material in step S4, obtains finished sheet, wherein preheated in foaming processing
Mono- area's temperature of Duan is 65 DEG C, two area's temperature are 75 DEG C, three area's temperature are 90 DEG C；The mono- area's temperature of Duan that foams is 250 DEG C, 2nd area
Temperature is 250 DEG C, three area's temperature are 250 DEG C, four area's temperature are 240 DEG C, five area's temperature are 210 DEG C, six area's temperature are 170 DEG C；
It is 3.0m/min into piece speed, slice speed is 9 m/min, out into than being about 3, and wherein using when preheating when heating, foaming
The mode of cooling, further improves frothing percentage.
Finally finished sheet is tested for the property, shows that the new waterproof film in the present embodiment has flexibility and waterproof
The advantages of property significant effect.
The embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, in institute
It states technical field those of ordinary skill within the scope of knowledge, can also make without departing from the purpose of the present invention
Various modifications.These are all without creative modification, as long as all by Patent Law in scope of the presently claimed invention
Protection.
Claims (10)
1. a kind of preparation of automobile interior decoration new waterproof film, it is characterised in that the waterproof membrane includes following each group by weight
Point: 50-90 parts of low density polyethylene (LDPE), 2-10 parts of foaming agent, 5-10 parts of toughener, 0.1-2 parts of antioxidant, lubricant 0.1-1
Part, 0.1-0.5 parts of fungicide and help 0. 1-1 parts of film.
2. a kind of preparation of automobile interior decoration new waterproof film according to claim 1, it is characterised in that: the low-density is poly-
Ethylene is the low density polyethylene (LDPE) that melt flow rate (MFR) is 0.75-6g/min；The foaming agent is azodicarbonamide；The increasing
Tough dose is ethylene-vinyl acetate copolymer；The antioxidant is one or both of 1010 or DSTDP mixture.
3. a kind of preparation of automobile interior decoration new waterproof film according to claim 1, it is characterised in that: the lubricant is
Zinc stearate；The fungicide is one of organic or inorganic salt or a variety of mixtures；It is described to help film for polyvinyl alcohol.
4. a kind of preparation of automobile interior decoration new waterproof film according to claim 1, it is characterised in that successively include following
Preparation step:
S1, low density polyethylene (LDPE), foaming agent, toughener, antioxidant, lubricant, antibacterial agent are mixed in mixer and helps film
Agent is granulated and particle a and particle b is made；
S2, particle a and particle b in stirrer for mixing step S1, obtain mixture；
S3, the mixture in single screw extrusion machine in addition step S2, squeeze out and wind, obtain sheet material；
S4, high-energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains semi-finished product sheet material；
S5, foaming processing is carried out to the semi-finished product sheet material in step S4, obtains finished sheet.
5. a kind of preparation of automobile interior decoration new waterproof film according to claim 4, it is characterised in that:, will in step S1
Low density polyethylene (LDPE), foaming agent and antioxidant are uniformly mixed and are kneaded, and are blended 10 under the conditions of temperature is 110-130 DEG C
Min carries out mixing granulation, obtains particle a；By toughener, lubricant, antibacterial agent and help film and low density polyethylene (LDPE) in temperature
Degree is blended 12 min under the conditions of being 120-130 DEG C and carries out mixing granulation, obtains particle b.
6. a kind of preparation of automobile interior decoration new waterproof film according to claim 4, it is characterised in that: in step S3, institute
It states in single screw extrusion machine and successively divides seven extrusion working regions according to extrusion temperature difference, area's temperature is 150-160 DEG C, two
Area's temperature is 140-150 DEG C, and three area's temperature are 120-125 DEG C, and four area's temperature are 110-120 DEG C, and five area's temperature are 110-115
DEG C, six area's temperature are 100-110 DEG C, and seven area's temperature are 95-100 DEG C, and die head temperature is 110-120 DEG C, and raw material is in extruder
Time of delivery is 3~5 min.
7. a kind of preparation of automobile interior decoration new waterproof film according to claim 4, it is characterised in that: described in step 4
The process conditions of high-energy electron irradiation crosslinking Treatment are as follows: 2-2.5 Mev energy, the sheet material number of plies of irradiation are 6-8 layers, and surface sweeping is wide
Degree is 800-1000 mm, and dosage is 10-15 Mrad.
8. a kind of preparation of automobile interior decoration new waterproof film according to claim 4, it is characterised in that: in step 5, foaming
Area's temperature of preheating section is 60-65 DEG C in processing, two area's temperature are 70-75 DEG C, three area's temperature are 80-90 DEG C；The section that foams
One area's temperature is 240-250 DEG C, two area's temperature are 240-250 DEG C, three area's temperature are 240-250 DEG C, four area's temperature are 220-240
DEG C, five area's temperature be 180-210 DEG C, six area's temperature are 150-170 DEG C；It is 3.0m/min into piece speed, slice speed is 6.5-
9 m/min, out into than for 2.2-3.
9. a kind of preparation of automobile interior decoration new waterproof film according to claim 3, it is characterised in that: the fungicide packet
Include one of silver nitrate, zinc sulfate, zinc nitrate and zinc acetate or a variety of mixtures.
10. a kind of preparation of automobile interior decoration new waterproof film according to claim 9, it is characterised in that: the fungicide
It inside further include sterilization auxiliary agent and metal salt complex protection agent, the sterilization auxiliary agent includes aluminium oxide and L-TARTARIC ACID, described
Metal salt complex protection agent includes adipic acid, and the metal salt complex protection agent accounts for the 5-7.5% of the fungicide overall weight.
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| CN201910654424.2A CN110483870A (en) | 2019-07-19 | 2019-07-19 | A kind of preparation of automobile interior decoration new waterproof film |
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| CN201910654424.2A CN110483870A (en) | 2019-07-19 | 2019-07-19 | A kind of preparation of automobile interior decoration new waterproof film |
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| CN102848677A (en) * | 2012-09-26 | 2013-01-02 | 北京印刷学院 | Multilayer composite antibacterial packaging material for food packaging and preparation method thereof |
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Application publication date: 20191122 |