AU2021102954A4 - Environment-friendly flame-retardant damping material for vehicles and preparation method thereof - Google Patents
Environment-friendly flame-retardant damping material for vehicles and preparation method thereof Download PDFInfo
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- 238000013016 damping Methods 0.000 title claims abstract description 81
- 239000000463 material Substances 0.000 title claims abstract description 53
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000003063 flame retardant Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 28
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 25
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 25
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 24
- 239000011575 calcium Substances 0.000 claims abstract description 24
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 21
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 20
- 239000004698 Polyethylene Substances 0.000 claims abstract description 20
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 20
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 20
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 19
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 15
- 239000006229 carbon black Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 15
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000008117 stearic acid Substances 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 11
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000001603 reducing effect Effects 0.000 abstract description 4
- 230000004083 survival effect Effects 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 14
- 230000032683 aging Effects 0.000 description 10
- MJSPPDCIDJQLRE-YUMQZZPRSA-N S-methionyl-L-thiocitrulline Chemical compound CSCC[C@@H](C(S/C(\N)=N/CCC[C@@H](C(O)=O)N)=O)N MJSPPDCIDJQLRE-YUMQZZPRSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000006399 behavior Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910052601 baryte Inorganic materials 0.000 description 2
- 239000010428 baryte Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229940087373 calcium oxide Drugs 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention belongs to the technical field of rubber, specifically an
environment- friendly flame-retardant damping material for vehicles and a
preparation method thereof. The damping material of the present invention comprises
the following raw materials in terms of parts by weight: 35 parts of Polyolefin
Elastomer (POE), 30 parts of Ethylene-Propylene-Diene Monomer (EPDM), 20 parts
of ethylene-vinyl acetate copolymer (EVA), 15 parts of polyethylene (PE), 60 to00
parts of barite powder, 60-100 parts of heavy calcium, 15 to 30 parts of aluminum
hydroxide, 5 to 20 parts of carbon black, 5 parts of VOC screening agent, 3 to 4 parts
of white oil, 1 to 3 parts of antioxidant, 0.5 to 1.5 parts of stearic acid. The damping
material prepared by the formula of the present invention is environment-friendly. It is
also beneficial to the driver and passengers escaping from the blazing vehicle as it can
effectively prevent the spread of fire with the excellent flame retardancy, improving
life survival and reducing property loss.
Description
The present invention belongs to the technical field of rubber, specifically an
environment- friendly flame-retardant damping material for vehicles and a
preparation method thereof. The damping material of the present invention comprises
the following raw materials in terms of parts by weight: 35 parts of Polyolefin
Elastomer (POE), 30 parts of Ethylene-Propylene-Diene Monomer (EPDM), 20 parts
of ethylene-vinyl acetate copolymer (EVA), 15 parts of polyethylene (PE), 60 to00
parts of barite powder, 60-100 parts of heavy calcium, 15 to 30 parts of aluminum
hydroxide, 5 to 20 parts of carbon black, 5 parts of VOC screening agent, 3 to 4 parts
of white oil, 1 to 3 parts of antioxidant, 0.5 to 1.5 parts of stearic acid. The damping
material prepared by the formula of the present invention is environment-friendly. It is
also beneficial to the driver and passengers escaping from the blazing vehicle as it can
effectively prevent the spread of fire with the excellent flame retardancy, improving
life survival and reducing property loss.
Environment-friendly flame-retardant damping
material for vehicles and preparation method thereof Backgrounds
The present invention belongs to the technical field of rubber, specifically an
environment- friendly flame-retardant damping material for vehicles and a
preparation method thereof.
Art of Backgrounds
The damping material is a kind of viscoelastic organic polymer material attached
to the inner surface of the car body. The viscoelasticity of the material is used to
convert the vibrational mechanical energy of the sound wave into the thermal energy
and dissipate it, thereby reducing the amplitude and vibration, suppressing noise, thus
performing a role of damping.
The existing damping materials generate a large amount of smoke and release
toxic gases when burning, which will prevent people in the vehicle from escaping
when a fire occurs and pollute the environment. Therefore, it is necessary to develop
an environment-friendly damping film with excellent flame-retardant properties.
Summary
The purpose of the present invention is to provide an environment-friendly
flame-retardant damping material for vehicles and a preparation method thereof. The
damping material prepared according to the formula of the present invention has
excellent flame-retardant properties; being environment-friendly as well.
Based on the above objective, the present invention adopts the following
technical solution: an environment-friendly flame-retardant damping material for
vehicles, which is comprised of the following parts by weight of raw materials:
Polyolefin Elastomer (POE): 35 parts;
ethylene-Propylene-Diene Monomer (EPDM): 30 parts;
ethylene-vinyl acetate copolymer (EVA): 20 parts;
polyethylene (PE): 15 parts; barite powder: 60 to 100 parts; heavy calcium: 60 to100 parts; aluminum hydroxide: 15 to 30 parts; carbon black: 5 to 20 parts;
VOC screening agent: 5 parts;
white oil: 3 to 4 parts;
antioxidant: 1 to 3 parts; stearic acid: 0.5 to 1.5 parts. Preferably, the damping material is comprised of the following parts by weight of raw materials: 35 parts of POE, 30 parts of EPDM, 20 parts of EVA, 15 parts of PE, parts of barite powder, 60 parts of heavy calcium, 15 parts of aluminum hydroxide, parts of carbon black, 5 parts of VOC shielding agent, 4 parts of white oil, 2 parts of antioxidant and 1 part of stearic acid. Preferably, the antioxidant is composed by the mixture of antioxidant 1010 and antioxidant 168 at a mass ratio of 1:1.
The preparation process of the damping material of the present invention is: putting the raw materials into an internal mixer; mixing them uniformly at 170°C; feeding them into the extruder uniformly; pressing them into a sheet shape after being extruded into a three-roll calender through the mould; thereby the environment-friendly flame-retardant damping material of the present invention prepared. Compared with the prior art, the beneficial effects of the present invention are: The main materials of the damping material of the present invention are POE, EPDM, EVA and PE, with the auxiliary materials of barite powder, heavy calcium and aluminum hydroxide. The formula of the said damping film, whose environmental property meets the technical requirements of car interior parts and material emission performance, and whose flame-retardant property meets the corporate standards set by the Technology Center of Shanghai Automotive Group Co., Ltd., is selected by adjusting the said auxiliary materials. The damping material prepared by the said formula of the present invention is environment-friendly. It is also beneficial to the driver and passengers escaping from the blazing vehicle as it can effectively prevent the spread of fire with the excellent flame retardancy, improving life survival and reducing property loss.
Description of Drawings
Figure 1 is a comparison diagram of sample 8 before and after burning in the
combustion experiments.
Embodiments
Embodiment 1
The influence of different raw material components on the performance of
damping film
1) Sample preparation
Table 1 The parts by weight of heavy calcium, barite powder and aluminum
hydroxide in different damping materials Heavy Barite aluminum Tensile Strength Elongation at break Horizontal burning Serial No. calcium powder hydroxide (MPa) rate (M~a (%)rate (parts) (parts) (parts) Horizontal 12.3 Horizontal 721.3 Sample 1 0 0 0 Vertical 11.6 Vertical 702.4 Easy to burn
Horizontal 7.2 Horizontal 583.2 Sample 2 60 0 0 Vertical 6.5 Vertical 563.6 SE/BR 89 mm/min
Horizontal 6.7 Horizontal 576.3 Sample 3 0 90 0 Vertical 6.1 Vertical 554.2 SE/BR 85 mm/min
Horizontal 4.7 Horizontal 493.2 Sample 4 60 90 0 Vertical 3.8 Vertical 486.8 SE/BR 69 mm/min
Horizontal 3.2 Horizontal 362.8 Sample 5 60 90 20 Vertical 2.8 Vertical 316.5 SE/NBR
Horizontal 3.3 Horizontal 372.3 Sample 6 60 60 30 Vertical 3.0 Vertical 329.6 SE/NBR
Horizontal2.6 Horizontal 289.1 Sample 7 100 90 30 Vertical 2.3 Vertical 274.5 SE/NBR
Horizontal 3.4 Horizontal 376.4 Sample 8 60 90 15 Vertical 3.0 Vertical 336.2 SE/NBR
Horizontal7.1 Horizontal 593.4 Sample 9 0 0 30 Vertical 6.6 Vertical 564.2 SE/BR 68 mm/min
The parts by weight of the raw material of POE, EPDM, EVA, PE, carbon black,
VOC screening agent, white oil, antioxidant 1010, antioxidant 168 and stearic acid are
the same before and after the experiments, respectively: 35 parts of POE, 30 parts of
EPDM, 20 parts of EVA, 15 parts of PE, 5 parts of carbon black, 5 parts of VOC
screening agent, 4 parts of white oil, 1 part of antioxidant 1010, 1 part of antioxidant
168, and 1 part of stearic acid; while the parts of heavy calcium, barite powder and
aluminum hydroxide of the raw materials are adjusted. Details are in Table 1.
The raw materials are put into an internal mixer, being mixed uniformly at 170°C
and fed uniformly into the extruder; then being pressed into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping materials of the present invention are
prepared, which are recorded as samples 1 to 9. The parts by weight of heavy calcium,
barite powder and aluminum hydroxide in samples 1to 9 are shown in Table 1. At the
same time, the samples 1 to 9 are tested for their mechanical properties and
flame-retardant properties, and the test results are shown in Table 1. The
flame-retardant performance evaluation standards are shown in Table 2.
Table 2 Horizontal burning rate evaluation standard (selected from SMTC 5 400
008-2015)
Serial Burning rate Specification in Burning behavior No. BR (mm/min) test report
Burning over the entire measurement BR less than 1 ... mm/min section 100
Flame travel more BR less than SE/BR...mm/min than 50 mm 100
Self-extinguishing Flame travel no 2 specimens more than 50 mm, - SE/NBR burning less than
60s
(2) Property testing
1) Mechanical property analysis
According to the Chinese national standard GB/T528-2009, samples 1 to 9 are
tested for their tensile strength and elongation at break. The test results are shown in
Table 1. It is generally believed that the higher the tensile strength and elongation at
break of the damping film are and the better the aging performance is, the longer the
usage time of the damping film has. Although the tensile strength and elongation at
break of the prepared damping films show a downtrend with the increase in the
amount of heavy calcium, barite powder and aluminum hydroxide in the formula,
samples 1 to 9 still meet even are much higher than the chemical industry standards,
in term of the chemical industry standard of damping film for vehicles (HG
/T4384-2012) where the tensile strength of the damping material should be greater
than or equal to 0.6Mpa.
2) Flame-retardant property analysis
The burning behaviours of samples 1 to 9 are tested for their horizontal burning
rates in term of the corporate standard of the SAIC Motor Corporation Technology
Center (SMTC 5 400 008-2015). The test results are shown in Table 1. The evaluation
standard of burning rate is shown in Table 2. When the burning occurs in the whole
measurement section and the burning speed is less than 100mm/min, the result is
recorded as BR...mm/min; when the burning distance is greater than 50mm and the
burning speed is less than 100mm/min, the result is recorded as SE/BR...mm/min;
when the burning distance is not more than 50mm and the burning time is less than
s, the result is recorded is SE/NBR; when the burning behaviours don't meet the
behaviours in Table 2, the result is recorded as easy to burn.
The following results can be seen from Table 1. When no heavy calcium, barite
powder and aluminum hydroxide are added to the raw materials, the prepared
damping film sample (sample 1) is easy to burn and does not meet the corporate
standards; when samples 2, 3, 4 and 9 are added with one or two auxiliaries of heavy
calcium, barite powder, and aluminum hydroxide, the samples 2, 3, 4 and 9 of the
prepared damping films have burning speeds greater than 50mm/min and less than
100mm/min, with the combustion level of SE/BR; when samples 5, 6, 7 and 8 are the
mixtures of heavy calcium, barite powder and aluminum hydroxide, the prepared
damping film sample has a burning speed of less than 50mm/min, with a highest
combustion level of s SE/NBR. It is indicated that the damping films prepared by
combining the three auxiliary materials of heavy calcium, barite powder and
aluminum hydroxide has the better flame-retardant properties than those prepared by
any one or two auxiliary materials of heavy calcium, barite powder and aluminum
hydroxide.
The raw material composition, mechanical properties and flame retardancy of
samples 5 to 8 are further analyzed. When the flame-retardant properties of samples 5
to 8 are similar, it can be seen that the tensile strength and elongation at break of
sample 8 are slightly better than samples 5 to 7; in addition, by comparing of the
combustion performance of samples 2, 3, and 9, it can be inferred that the aluminum
hydroxide improves the flame retardancy of the damping film better than heavy
calcium and barite powder. However, in the actual production process, with the
increase in the amount of aluminum hydroxide, the processing performance will
decline with the hardness of the rubber compound increasing and the fluidity
becoming worse. Then the damping films can't be prepared till the higher mixing
temperature and higher extrusion temperature are provided, which means an increase
of the processing cost of the damping films. Therefore, the formula for preparing
sample 8 is the optimal formula with the mechanical properties, processing
performance and cost of the damping film being involved in the influence factors.
(3) Further tests and analysis of aging performance, environmental
performance and flame retardancy of the damping film of the with sample 8
1) Aging performance
As the damping film will become hard and brittle, and lose its damping
performance for the aging phenomena during its usage, it is necessary to test the aging
performance of the damping film of the present invention. Take tests on the damping
film of sample 8 for the Shore A hardness in term of Chinese national standard
GB/T531-2009, and for the tensile strength and elongation at break in term of Chinese national standard GB/T528-2009. Subsequently, the damping film is aged for 720 hours at a temperature of 1200 C, then cooled to room temperature. Take tests again on the damping film of sample 8 for the Shore A hardness, tensile strength, and elongation at break.
Another damping film of sample 8 is treated at 200°C for 3 minutes then cooled
to room temperature, which means the damping film is pre-shrinked. The
pre-shrinked film is stored at 90°C for 24 hours, then cooled to room temperature. The
film undergoes shrinkage detection.
The test results are shown in Table 3. After the aging treatment, the Shore A
hardness of sample 8 damping film increases by 7; the horizontal tensile strength
decreases by 11.7%; the vertical tensile strength decreases by 13.3%; the horizontal
elongation at break decreases by 11.9%; and the vertical elongation at break decreased
by 15.1%. Although the tensile strength and elongation at break of the damping film
have been reduced after aging treatment, the damping film doesn't lose its property at
a great extent, and still complies with Chinese chemical industry standard
(HG/T4384-2012) where the tensile strength of the damping material is greater than
or equal to 0.6Mpa after aging treatment.
The shrinkage rate of the damping film is 1.23% after shrinking treatment, which
complies with Chinese chemical industry standard (HG/T4384-2012) where the
shrinkage rate of the damping film is less than or equal to 2%.
In summary, the aging performance of the damping film prepared by the formula
of the present invention meets the industry standard with a service life specified by
the industry standard.
Table 3 Mechanical properties of damping materials
Item Property
Shore A hardness 82
Horizontal 3.4 Tensile Strength MPa Verical3.0
Horizontal 376.4 Elongation at break % Vertical336.2 after a 720hrs aging treatment at 120C
Shore A hardness 89
Horizontal 3.0 Tensile Strength MPa Vertical 2.6
Horizontal 331.5 Elongation at break %Verical285.3
After pre-shrinking (200 C /3min, cooling to room
temperature), store at 90°C for 24h
Shrinkage rate 1.23%
2) Environmental performance
Sample 8 is tested on environmental protection of volatile organic compounds
(VOC) in term of the detection method specified in SMTC 5 400 018-2019. The test
results are shown in Table 4. It can be seen from the test results in Table 4 that all the
VOC test items in the damping film of the present invention are up to standard,
meeting the requirements of the emission performance technical requirements of car
interior parts and materials (SMTC 5 300 004-2015 (V3))o
Table 4 The detection results of damping film of sample on VOC
The detection limit Compound Result(pg/m) Limit (pg/m3) Evaluation (pig/n)
Benzene 5 16 20 PASS
Toluene 5 41 100 PASS
Ethylbenzene 5 11 100 PASS
Xylene 15 31 100 PASS
Styrene 5 ND 40 PASS
Formaldehyde 5 10 180 PASS
Acetaldehyde 5 8 150 PASS
Acrolein 5 ND 50 PASS
3) Flame-retardant performance
The burning behaviours of the damping film of sample 8 are tested in term of the corporate standard of the SAIC Motor Corporation Technology Center (SMTC 5 400
008-2015). The test results are shown in Figure 1, which shows the comparison
results of 5 parallel samples of damping films of sample 8. It can be seen from Figure
1 that the burning distance is less than 50mm and the burning time is less than 60s
when the sample 8 is tested in terms of the SMTC 5 400 008-2015 standard. It is a
self-extinguishing sample with the highest flame-retardant level.
In summary, the environmental performance of the damping film prepared in
term of the formula of the present invention meets the technical requirements for car
interior parts and material emission performance, and its flame-retardant performance
meets the corporate standards of the Shanghai Automotive Group Co., Ltd.
Technology Center. The damping film prepared in term of the formula of the present
invention is environment-friendly with excellent flame-retardancy.
Embodiment 2
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 60 parts of barite powder, 100 parts
of heavy calcium, 15 parts of aluminum hydroxide, 20 parts of carbon black, 5 parts
of VOC screening agent, 3 parts of white oil, 1.5 parts of antioxidant 1010, 1.5 parts
of antioxidant 168, and 0.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Embodiment 3
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 100 parts of barite powder, 60 parts
of heavy calcium, 30 parts of aluminum hydroxide, 5 parts of carbon black, 5 parts of
VOC screening agent, 4 parts of white oil, 0.5 parts of antioxidant 1010, 0.5 parts of
antioxidant 168, and 1.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Embodiment 4
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 60 parts of barite powder, 60 parts of
heavy calcium, 15 parts of aluminum hydroxide, 5 parts of carbon black, 5 parts of
VOC screening agent, 3 parts of white oil, 0.5 parts of antioxidant 1010, 0.5 parts of
antioxidant 168, and 0.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Embodiment 5
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 100 parts of barite powder, 100 parts
of heavy calcium, 30 parts of aluminum hydroxide, 20 parts of carbon black, 5 parts
of VOC screening agent, 4 parts of white oil, 1.5 parts of antioxidant 1010, 1.5 parts
of antioxidant 168, and 1.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the environment-friendly flame-retardant damping material of the present invention is prepared.
Embodiment 6
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 90 parts of barite powder, 80 parts of
heavy calcium, 20 parts of aluminum hydroxide, 10 parts of carbon black, 5 parts of
VOC screening agent, 4 parts of white oil, 1 parts of antioxidant 1010, 1 parts of
antioxidant 168, and 1 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Embodiment 7
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30
parts of EPDM, 20 parts of EVA, 15 parts of PE, 70 parts of barite powder, 90 parts of
heavy calcium, 25 parts of aluminum hydroxide, 15 parts of carbon black, 5 parts of
VOC screening agent, 3 parts of white oil, 1.2 parts of antioxidant 1010, 1.2 parts of
antioxidant 168, and 1.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Embodiment 8
An environment-friendly flame-retardant damping material for vehicles, comprised by the following parts by weight of raw materials: 35 parts of POE, 30 parts of EPDM, 20 parts of EVA, 15 parts of PE, 80 parts of barite powder, 70 parts of heavy calcium, 15 parts of aluminum hydroxide, 10 parts of carbon black, 5 parts of
VOC screening agent, 4 parts of white oil, 1 parts of antioxidant 1010, 1 parts of
antioxidant 168, and 0.5 parts of stearic acid.
Putting the raw materials into an internal mixer; mixing them uniformly at 170°C;
feeding them into the extruder uniformly; pressing them into a sheet shape after being
extruded into a three-roll calender through the mould; thereby the
environment-friendly flame-retardant damping material of the present invention is
prepared.
Claims (4)
1. Environment-friendly flame-retardant damping material for vehicles,
comprising the following parts by weight of raw materials:
Polyolefin Elastomer (POE): 35 parts;
ethylene-Propylene-Diene Monomer (EPDM): 30 parts;
ethylene-vinyl acetate copolymer (EVA): 20 parts;
polyethylene (PE): 15 parts;
barite powder: 60 to 100 parts;
heavy calcium: 60 to100 parts;
aluminum hydroxide: 15 to 30 parts;
carbon black: 5 to 20 parts;
VOC screening agent: 5 parts;
white oil: 3 to 4 parts;
antioxidant: 1 to 3 parts;
stearic acid: 0.5 to 1.5 parts.
2. The damping material of claim 1, wherein the damping material includes the
following parts by weight of raw materials: 35 parts of POE, 30 parts of EPDM, 20
parts of EVA, 15 parts of PE, 90 parts of barite powder, 60 parts of heavy calcium
Parts, 15 parts of aluminum hydroxide, 5 parts of carbon black, 5 parts of VOC
screening agent, 4 parts of white oil, 2 parts of antioxidant, and 1 part of stearic acid.
3. The damping material of claim 2, wherein the antioxidant is mixed with
antioxidant 1010 and antioxidant 168 in a mass ratio of 1:1.
4. A method for preparing the damping material of one of the claims 1 to 3,
wherein the steps are: putting the raw materials into an internal mixer; mixing them
uniformly at 170°C; feeding them into the extruder uniformly; pressing them into a
sheet shape after being extruded into a three-roll calender through the mould; thereby
the environment-friendly flame-retardant damping material of the present invention
prepared.
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| AU2021102954A AU2021102954A4 (en) | 2021-05-28 | 2021-05-28 | Environment-friendly flame-retardant damping material for vehicles and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021102954A AU2021102954A4 (en) | 2021-05-28 | 2021-05-28 | Environment-friendly flame-retardant damping material for vehicles and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021102954A4 true AU2021102954A4 (en) | 2021-10-21 |
Family
ID=78176929
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021102954A Ceased AU2021102954A4 (en) | 2021-05-28 | 2021-05-28 | Environment-friendly flame-retardant damping material for vehicles and preparation method thereof |
Country Status (1)
| Country | Link |
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| AU (1) | AU2021102954A4 (en) |
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2021
- 2021-05-28 AU AU2021102954A patent/AU2021102954A4/en not_active Ceased
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