CN110450337A - A kind of preparation of novel sound insulating noise reduction film for automobile interiors - Google Patents
A kind of preparation of novel sound insulating noise reduction film for automobile interiors Download PDFInfo
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- CN110450337A CN110450337A CN201910654822.4A CN201910654822A CN110450337A CN 110450337 A CN110450337 A CN 110450337A CN 201910654822 A CN201910654822 A CN 201910654822A CN 110450337 A CN110450337 A CN 110450337A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
- B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention belongs to technical field of polymer materials more particularly to a kind of preparations of novel sound insulating noise reduction film for automobile interiors.Raw material of the present invention by specific preparation including low density polyethylene (LDPE), foaming agent, antioxidant and auxiliary agent, additional partition type squeezes out, high-energy electron irradiation is crosslinked and the mode of partition type foam process, achievees the effect that automotive interior sound insulation noise reduction film is effectively prepared.The present invention has automotive interior sound insulation noise reduction film simple and effective with coiled material preparation method, preparation process operation is rationally efficient, economical and practical, prepares the advantage that resulting coiled material density is small, shock resistance is good, flexible resilient is strong, sound insulation and noise reduction effect is obvious and whole service life is long.
Description
Technical field
The invention belongs to technical field of polymer materials more particularly to a kind of systems of novel sound insulating noise reduction film for automobile interiors
It is standby.
Background technique
While the car is driving, the noise of vehicle door interior trim can make people generate it is irritated, slow in reacting, take sb's mind off sth,
Cause traffic accident.How to reduce from the noise of vehicle door interior trim is just worth innovation research.
The noise source of vehicle door interior trim it is relatively thin in car door metal plate and generate resonance noise, metal fatigue and vehicle body twisting and
The noise and driving process apoplexy of generation make an uproar, road noise.Due to the thinner thickness problem of car door inner and outer plates, metal plate can be caused to produce
Raw operatic tunes covibration.For the vibration problem of metal plate, usually adhere to sound insulation and noise reduction film in inner plate of car door, sound insulation effect can be played
Fruit, therefore just need to develop a kind of novel sound insulating noise reduction film for automobile interiors.
Currently, IXPE material belongs to more emerging research for sqouynd absorption lowering noise field.IXPE diaphragm material is with low close
Spending polyethylene (LDPE) is primary raw material, and many kinds of substance auxiliary material such as addition foaming agent azodicarbonamide (AC) is made by mixing
IXPE diaphragm material is prepared in the process flows such as grain, extrusion processing, crosslinking with radiation, foaming, has heat-insulated, sound-absorbing, damping
And other effects, can reduce interior noise by automobile passenger has better comfort, and lessen fatigue degree, is conducive to running car peace
Entirely.
Patent publication No. is CN101067026A, publication date be the Chinese invention patent of 2007.11.07 disclose it is a kind of every
The coloured polyester pad pasting of sound light blocking adds sound insulation light blocking master batch in raw material polyester, in the dyestuff that 1.0%-3.0% is added
With the photomask agent benzophenone bulky amine of 0.8%-1.5%.
But there is soundproof effect difference in the sound insulation light blocking film in the patent of invention.
Summary of the invention
The object of the present invention is to provide a kind of preparations of novel sound insulating noise reduction film for automobile interiors, can pass through specific preparation
Raw material including low density polyethylene (LDPE), foaming agent, antioxidant and auxiliary agent, additional partition type extrusion, high energy electron spoke
According to crosslinking and the mode of partition type foam process, achieve the effect that automotive interior sound insulation noise reduction film is effectively prepared.Present invention tool
There is automotive interior sound insulation noise reduction film coiled material preparation method simple and effective, preparation process operation is rationally efficient, economical and practical, preparation
Resulting coiled material density is small, shock resistance is good, flexible resilient is strong, sound insulation and noise reduction effect is obvious and whole service life is long
Advantage.
The present invention solve the above problems the technical solution adopted is that: a kind of system of novel sound insulating noise reduction film for automobile interiors
It is standby, successively include following preparation step:
S1, ingredient is carried out according to material proportion, obtains sheet stock；
S2, in mixer, to the sheet stock in step S1 carry out mixing mixing be granulated, obtain particle；
S3 is sufficiently mixed the particle in step S2, is squeezed out and wound in single screw extrusion machine, obtain piece
Material；
S4, high energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains sheet material to be foamed；
S5, foaming processing is carried out to the sheet material to be foamed in step S4, obtains final sound insulation and noise reduction film；
S6, inspection is crimped to the sound insulation and noise reduction film in step S5, is packed and stored.
In the present invention, sheet stock passes sequentially through main extrusion, crosslinking with radiation and foaming three-wave-length method and carries out
Preparation, obtains final sound insulation and noise reduction film sheet, guarantees basic flexibility, the anti-aging intensity of foaming intensity and surface, full
Use environment and the service life requirement of sufficient automobile interior decoration.
Further preferred technical solution is: in step S1, the sheet stock includes low density polyethylene (LDPE), foaming
Agent, antioxidant and auxiliary agent, the foaming agent are azodicarbonamide, and the antioxidant is one in 1010 and DSTDP
Kind or two kinds of mixtures.
Further preferred technical solution is: the auxiliary agent includes toughener, lubricant, film forming agent and colorant,
The toughener is calcium carbonate, and the lubricant is zinc oxide, and the film forming agent is polyvinyl alcohol, and the colorant is color masterbatch
1398。
In the present invention, the auxiliary agent assigns sheet material additional function, and wherein toughener is for increasing the tough of sheet material membrane body
Property, the lubricant is for facilitating extrusion, and the film forming agent is for accelerating particle film extrusion speed.
Further preferred technical solution is that the sheet stock includes following each component by weight: low-density is poly-
50-90 parts of ethylene, 2-15 parts of azodicarbonamide, 5-10 parts of calcium carbonate, 0.1-1 parts of DSTDP antioxidant, zinc oxide 0.2-2
0.1-0.5 parts of part, 0.1-0.5 parts of polyvinyl alcohol and 1398 model color masterbatch.
Further preferred technical solution is: in step S2, low density polyethylene (LDPE) being divided into two parts, a and foaming agent
And antioxidant uniformly mixes mixing, temperature is 110-120 DEG C, and the blending time is 10-12 min, fundamental particle is made, separately
A uniformly to mix mixing with toughener, lubricant, film forming agent and colorant, temperature is 120-130 DEG C, and the blending time is
Aid particle is made in 12-14 min.
In the present invention, aid particle and fundamental particle are granulated preparation respectively, then have the advantage that
First, auxiliary component is individually granulated, and meets the respective need between foaming agent, antioxidant and auxiliary agent to different prilling temperatures
It asks, if being mixed granulation, is easy to appear that fundamental particle prilling temperature is excessively high, the inadequate problem of particle intensity.
Second, in the aid particle, the calcium carbonate and zinc oxide are form of powdery particles, and the fundamental particle
Pelletization system be fluid, the prilling temperature of fundamental particle can be further decreased, it can reach 110 DEG C, compared to existing
Some mixing granulations, mode of the temperature at 125 DEG C, the present invention have the advantages that energy-saving effect is good.
Further preferred technical solution is: in step S3, single screw extrusion machine is according to temperature difference along extrusion side
It is divided into seven areas upwards, area's temperature is 150-160 DEG C, and two area's temperature are 140-150 DEG C, and three area's temperature are 120-130 DEG C, four
Area's temperature is 110-120 DEG C, and five area's temperature are 100-110 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 2~5 min in the time of delivery of extruder.
Further preferred technical solution is: in step S4, 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 width is 800-1000 mm, and dosage is 10-15 Mrad.
Further preferred technical solution is: in step S5, foam process divides preheating section and foaming section, and each section according to temperature
Degree is different in the region for being divided into several independent temperatures in sheet material direction of advance, and area's temperature of the preheating section is 60-70
DEG C, two area's temperature be 70-80 DEG C, three area's temperature are 80-100 DEG C；The mono- area's temperature of Duan that foams is 240-250 DEG C, two area's temperature
For 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, 6th area
Temperature is 160-180 DEG C；It is 3.0m/min into piece speed, slice speed is 6-8 m/min, out into than being 2-2.7.
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 granularity of the fundamental particle is 35-50nm, the grain of the aid particle
Degree is 10-20nm.
Further preferred technical solution is: the ratio that the low density polyethylene (LDPE) is used to prepare fundamental particle is 65-
75%。
In the present invention, fundamental particle and two kinds of weight of aid particle, granularity and required prilling temperature are different, therefore
Mode is separately granulated using above-mentioned, it is ensured that particle intensity is moderate, and the effect of whole energy economy.
Raw material of the present invention by specific preparation including low density polyethylene (LDPE), foaming agent, antioxidant and auxiliary agent,
Additional partition type squeezes out, high-energy electron irradiation is crosslinked and the mode of partition type foam process, reaches automotive interior sound insulation noise reduction
The effect that film is effectively prepared.The present invention has automotive interior sound insulation noise reduction film simple and effective with coiled material preparation method, preparation process
Operation rationally it is efficient, economical and practical, prepare resulting coiled material density is small, shock resistance is good, flexible resilient is strong, sound insulation and noise reduction imitate
The advantage that fruit is obvious and whole service life is long.
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 novel sound insulating noise reduction film for automobile interiors successively includes following preparation step:
S1, ingredient is carried out according to material proportion, obtains sheet stock；
S2, in mixer, to the sheet stock in step S1 carry out mixing mixing be granulated, obtain particle；
S3 is sufficiently mixed the particle in step S2, is squeezed out and wound in single screw extrusion machine, obtain piece
Material；
S4, high energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains sheet material to be foamed；
S5, foaming processing is carried out to the sheet material to be foamed in step S4, obtains final sound insulation and noise reduction film；
S6, inspection is crimped to the sound insulation and noise reduction film in step S5, is packed and stored.
In step S1, the sheet stock includes low density polyethylene (LDPE) 50kg, foaming agent azodicarbonamide 2kg, DSTDP
Antioxidant 0.1kg, toughener calcium carbonate 5kg, lubricant oxidation zinc 0.2kg, film forming agent polyvinyl alcohol 0.1kg and colorant
1398 model color masterbatch 0.1kg.
In step S2, low density polyethylene (LDPE) is divided into two parts, the low density polyethylene (LDPE) of weight accounting 65% and foaming agent and
Antioxidant uniformly mixes mixing, and temperature is 110 DEG C, and the blending time is 10 min, and fundamental particle is made, and granularity 35nm is remained
Remaining low density polyethylene (LDPE) uniformly mixes mixing with toughener, lubricant, film forming agent and colorant, and temperature is 120- DEG C, altogether
It does time as 12min, obtained aid particle, granularity 10nm.
In step S3, single screw extrusion machine is being divided into seven areas along extrusion direction according to temperature difference, and 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 100 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 2 min in the time of delivery of extruder, at seven
During partition heating, temperature is successively reduced or is not increased at least, guarantees that front end mainly squeezes out the extrusion heat preservation of effect and rear end
Effect.
In step S4, the process conditions of high-energy electron irradiation crosslinking Treatment are as follows: 2Mev energy, the sheet material number of plies of irradiation are 6
Layer, surface sweeping width are 800 mm, and dosage is 10 Mrad.
In step S5, foam process divides preheating section and foaming section, and each section according to temperature difference in sheet material direction of advance
It is divided into the region of several independent temperatures, area's temperature of the preheating section is 60 DEG C, two area's temperature are 70 DEG C, three area's temperature are
80℃；The mono- area's temperature of Duan that foams is 240 DEG C, two area's temperature are 240 DEG C, three area's temperature are 240 DEG C, four area's temperature are 220
DEG C, five area's temperature be 180 DEG C, six area's temperature are 160 DEG C；Into piece speed be 3.0m/min, slice speed be 6 m/min, out into
Than being 2, and by the way of wherein cooling down when heating, foaming when preheating, frothing percentage is further improved.
Finally finished sheet is tested for the property, shows that the novel sound insulating noise reduction film in the present embodiment has sound insulation and noise reduction
Effect clear advantage.
Embodiment 2
A kind of preparation of novel sound insulating noise reduction film for automobile interiors successively includes following preparation step:
S1, ingredient is carried out according to material proportion, obtains sheet stock；
S2, in mixer, to the sheet stock in step S1 carry out mixing mixing be granulated, obtain particle；
S3 is sufficiently mixed the particle in step S2, is squeezed out and wound in single screw extrusion machine, obtain piece
Material；
S4, high energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains sheet material to be foamed；
S5, foaming processing is carried out to the sheet material to be foamed in step S4, obtains final sound insulation and noise reduction film；
S6, inspection is crimped to the sound insulation and noise reduction film in step S5, is packed and stored.
In step S1, the sheet stock includes low density polyethylene (LDPE) 60kg, foaming agent azodicarbonamide 8kg, DSTDP
Antioxidant 0.6kg, toughener calcium carbonate 8kg, lubricant oxidation zinc 0.9kg, film forming agent polyvinyl alcohol 0.3kg and colorant
1398 model color masterbatch 0.3kg.
In step S2, low density polyethylene (LDPE) is divided into two parts, the low density polyethylene (LDPE) of weight accounting 72% and foaming agent and
Antioxidant uniformly mixes mixing, and temperature is 115 DEG C, and the blending time is 10 min, and fundamental particle is made, and granularity 40nm is remained
Remaining low density polyethylene (LDPE) uniformly mixes mixing with toughener, lubricant, film forming agent and colorant, and temperature is 125 DEG C, is blended
Time is 12min, and aid particle, granularity 16nm is made.
In step S3, single screw extrusion machine is being divided into seven areas along extrusion direction according to temperature difference, and area's temperature is
155 DEG C, two area's temperature are 145 DEG C, and three area's temperature are 128 DEG C, and four area's temperature are 115 DEG C, and five area's temperature are 105 DEG C, six Qu Wen
Degree is 105 DEG C, and seven area's temperature are 95 DEG C, and die head temperature is 115 DEG C, and raw material is 3min in the time of delivery of extruder, at seven
During partition heating, temperature is successively reduced or is not increased at least, guarantees that front end mainly squeezes out the extrusion heat preservation of effect and rear end
Effect.
In step S4, the process conditions of high-energy electron irradiation crosslinking Treatment are as follows: 2.2Mev energy, the sheet material number of plies of irradiation
It is 8 layers, surface sweeping width is 900 mm, and dosage is 13 Mrad.
In step S5, foam process divides preheating section and foaming section, and each section according to temperature difference in sheet material direction of advance
It is divided into the region of several independent temperatures, area's temperature of the preheating section is 65 DEG C, two area's temperature are 75 DEG C, three area's temperature are
90℃；The mono- area's temperature of Duan that foams is 245 DEG C, two area's temperature are 245 DEG C, three area's temperature are 245 DEG C, four area's temperature are 220
DEG C, five area's temperature be 180 DEG C, six area's temperature are 170 DEG C；Into piece speed be 3.0m/min, slice speed be 8m/min, out into than
It is 2.67, and by the way of wherein being cooled down when heating, foaming when preheating, further improve frothing percentage.
Finally finished sheet is tested for the property, shows that the novel sound insulating noise reduction film in the present embodiment has sound insulation and noise reduction
Effect clear advantage.
Embodiment 3
A kind of preparation of novel sound insulating noise reduction film for automobile interiors successively includes following preparation step:
S1, ingredient is carried out according to material proportion, obtains sheet stock；
S2, in mixer, to the sheet stock in step S1 carry out mixing mixing be granulated, obtain particle；
S3 is sufficiently mixed the particle in step S2, is squeezed out and wound in single screw extrusion machine, obtain piece
Material；
S4, high energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains sheet material to be foamed；
S5, foaming processing is carried out to the sheet material to be foamed in step S4, obtains final sound insulation and noise reduction film；
S6, inspection is crimped to the sound insulation and noise reduction film in step S5, is packed and stored.
In step S1, the sheet stock include low density polyethylene (LDPE) 90kg, foaming agent azodicarbonamide 15kg,
DSTDP antioxidant 0.9kg, toughener calcium carbonate 10kg, lubricant oxidation zinc 1.5kg, film forming agent polyvinyl alcohol 0.5kg and
1398 model color masterbatch 0.5kg of colorant.
In step S2, low density polyethylene (LDPE) is divided into two parts, the low density polyethylene (LDPE) of weight accounting 75% and foaming agent and
Antioxidant uniformly mixes mixing, and temperature is 120 DEG C, and the blending time is 12 min, and fundamental particle is made, and granularity 45nm is remained
Remaining low density polyethylene (LDPE) uniformly mixes mixing with toughener, lubricant, film forming agent and colorant, and temperature is 130 DEG C, is blended
Time is 14min, and aid particle, granularity 18nm is made.
In step S3, single screw extrusion machine is being divided into seven areas along extrusion direction according to temperature difference, and area's temperature is
160 DEG C, two area's temperature are 150 DEG C, and three area's temperature are 130 DEG C, and four area's temperature are 120 DEG C, and five area's temperature are 110 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, at seven
During partition heating, temperature is successively reduced or is not increased at least, guarantees that front end mainly squeezes out the extrusion heat preservation of effect and rear end
Effect.
In step S4, the process conditions of high-energy electron irradiation crosslinking Treatment are as follows: 2.5Mev energy, the sheet material number of plies of irradiation
It is 8 layers, surface sweeping width is 1000 mm, dosage 15Mrad.
In step S5, foam process divides preheating section and foaming section, and each section according to temperature difference in sheet material direction of advance
It is divided into the region of several independent temperatures, area's temperature of the preheating section is 70 DEG C, two area's temperature are 80 DEG C, three area's temperature are
100℃；The mono- area's temperature of Duan that foams is 250 DEG C, two area's temperature are 250 DEG C, three area's temperature are 250 DEG C, four area's temperature are 240
DEG C, five area's temperature be 190 DEG C, six area's temperature are 170 DEG C；Into piece speed be 3.0m/min, slice speed be 8m/min, out into than
It is 2.67, and by the way of wherein being cooled down when heating, foaming when preheating, further improve frothing percentage.
Finally finished sheet is tested for the property, shows that the novel sound insulating noise reduction film in the present embodiment has sound insulation and noise reduction
Effect clear advantage.
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 novel sound insulating noise reduction film for automobile interiors, it is characterised in that successively include following preparation step:
S1, ingredient is carried out according to material proportion, obtains sheet stock；
S2, in mixer, to the sheet stock in step S1 carry out mixing mixing be granulated, obtain particle；
S3 is sufficiently mixed the particle in step S2, is squeezed out and wound in single screw extrusion machine, obtain piece
Material；
S4, high energy electron irradiation crosslinking Treatment is carried out to the sheet material in step S3, obtains sheet material to be foamed；
S5, foaming processing is carried out to the sheet material to be foamed in step S4, obtains final sound insulation and noise reduction film；
S6, inspection is crimped to the sound insulation and noise reduction film in step S5, is packed and stored.
2. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 1, it is characterised in that: step S1
In, the sheet stock includes low density polyethylene (LDPE), foaming agent, antioxidant and auxiliary agent, and the foaming agent is azo diformazan
Amide, the antioxidant are one or both of 1010 and DSTDP mixture.
3. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 2, it is characterised in that: described to help
Agent includes toughener, lubricant, film forming agent and colorant, and the toughener is calcium carbonate, and the lubricant is zinc oxide, institute
Stating film forming agent is polyvinyl alcohol, and the colorant is color masterbatch 1398.
4. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 3, it is characterised in that described
Material raw material includes following each component by weight: 50-90 parts of low density polyethylene (LDPE), 2-15 parts of azodicarbonamide, calcium carbonate
5-10 parts, 0.1-1 parts of DSTDP antioxidant, 0.2-2 parts of zinc oxide, 0.1-0.5 parts of polyvinyl alcohol and 1398 model color masterbatch
0.1-0.5 parts.
5. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 3, it is characterised in that: step S2
In, low density polyethylene (LDPE) is divided into two parts, portion uniformly mixes mixing, temperature 110-120 with foaming agent and antioxidant
DEG C, the blending time is 10-12 min, fundamental particle is made, another is equal with toughener, lubricant, film forming agent and colorant
Even mixing mixing, temperature are 120-130 DEG C, and the blending time is 12-14 min, and aid particle is made.
6. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 1, it is characterised in that: step S3
In, single screw extrusion machine is 150-160 DEG C being divided into seven areas, area's temperature along extrusion direction according to temperature difference, 2nd area
Temperature is 140-150 DEG C, and three area's temperature are 120-130 DEG C, and four area's temperature are 110-120 DEG C, and five area's temperature are 100-110 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, conveying of the raw material in extruder
Time is 2~5 min.
7. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 1, it is characterised in that: step S4
In, 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, surface sweeping
Width is 800-1000 mm, and dosage is 10-15 Mrad.
8. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 1, it is characterised in that: step S5
In, foam process divides preheating section and foaming section, and each section is being divided into several independences according to temperature difference in sheet material direction of advance
The region of temperature control, area's temperature of the preheating section is 60-70 DEG C, two area's temperature are 70-80 DEG C, three area's temperature are 80-100
℃；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 are 240-250 DEG C, 4th area
Temperature is 220-240 DEG C, five area's temperature are 180-210 DEG C, six area's temperature are 160-180 DEG C；It is 3.0m/min into piece speed, out
Piece speed is 6-8 m/min, out into than being 2-2.7.
9. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 5, it is characterised in that: the base
The granularity of plinth particle is 35-50nm, and the granularity of the aid particle is 10-20nm.
10. a kind of preparation of novel sound insulating noise reduction film for automobile interiors according to claim 5, it is characterised in that: described
The ratio that low density polyethylene (LDPE) is used to prepare fundamental particle is 65-75%.
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| CN201910654822.4A CN110450337A (en) | 2019-07-19 | 2019-07-19 | A kind of preparation of novel sound insulating noise reduction film for automobile interiors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114714556A (en) * | 2022-04-01 | 2022-07-08 | 启东纽昇塑胶科技有限公司 | Preparation method for producing open-cell polyethylene foam material |
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| CN104672591A (en) * | 2015-02-03 | 2015-06-03 | 四川厚诚新材料有限公司 | Production method of aluminizing-grade cast PE film |
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- 2019-07-19 CN CN201910654822.4A patent/CN110450337A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104672591A (en) * | 2015-02-03 | 2015-06-03 | 四川厚诚新材料有限公司 | Production method of aluminizing-grade cast PE film |
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| 李红强: "《胶黏原理、技术及应用》", 31 January 2014, 华南理工大学出版社 * |
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| CN114714556A (en) * | 2022-04-01 | 2022-07-08 | 启东纽昇塑胶科技有限公司 | Preparation method for producing open-cell polyethylene foam material |
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Application publication date: 20191115 |