WO2015083447A1 - 発泡成形体、空気調節装置用ダクト及び車載空気調節装置用ダクト - Google Patents
発泡成形体、空気調節装置用ダクト及び車載空気調節装置用ダクト Download PDFInfo
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- WO2015083447A1 WO2015083447A1 PCT/JP2014/077554 JP2014077554W WO2015083447A1 WO 2015083447 A1 WO2015083447 A1 WO 2015083447A1 JP 2014077554 W JP2014077554 W JP 2014077554W WO 2015083447 A1 WO2015083447 A1 WO 2015083447A1
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- WIPO (PCT)
- Prior art keywords
- duct
- air conditioner
- molded article
- foamed molded
- foam
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
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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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- 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
- C08J9/12—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 physical blowing agent
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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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
-
- 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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- 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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
Definitions
- the present invention relates to a foam molded article, a duct for an air conditioner, and a duct for an in-vehicle air conditioner. More specifically, the present invention relates to a foamed molded article that can achieve both excellent silencing and heat insulation, an air conditioner duct and an in-vehicle air conditioner duct provided with the same.
- Patent Document 1 a foam duct in which a resin is foamed at a high foaming ratio by blow molding and molded into a required shape has been proposed.
- This foam duct is provided with a connection port part that fits other members at both ends in an air conditioner for an automobile, and a duct body in which a pipe passage through which air passes is bent in a three-dimensional shape between the connection port parts.
- the connection port portion and the duct body are made of foamed cells having a foamed average particle diameter of 100 to 300 ⁇ m by blow molding a single layer parison foamed by physical foaming.
- An object of the present invention is to provide a foamed molded product that can achieve both excellent silencing and heat insulation, a duct for an air conditioner and a duct for an in-vehicle air conditioner provided with the same.
- the inventors of the present invention have made extensive studies in order to achieve the above object. As a result, it is a foamed molded article having a cylindrical shape and made of foamed resin, having a weight per unit area of 0.090 g / cm 2 or less and a foaming ratio of 3.4 to 40 times. Thus, the inventors have found that the above object can be achieved, and have completed the present invention.
- the foamed molded article of the present invention has a cylindrical shape, is formed by foaming a resin, has a basis weight of 0.090 g / cm 2 or less, and a foaming ratio of 3.4 to 40 times. is there.
- the duct for an air conditioner or the duct for an on-vehicle air conditioner according to the present invention is provided with the foamed molded body according to the present invention.
- the present invention is a foamed molded article having a cylindrical shape and made by foaming a resin, having a basis weight of 0.090 g / cm 2 or less and a foaming ratio of 3.4 to 40 times.
- the configuration Therefore, it is possible to provide a foamed molded product that can achieve both excellent silencing and heat insulation, a duct for an air conditioner and a duct for an in-vehicle air conditioner provided with the same.
- the foamed molded product of the present embodiment has a cylindrical shape and is formed by foaming a resin, has a basis weight of 0.090 g / cm 2 or less, and a foaming ratio of 3.4 to 40 times. There is something.
- foaming magnification sound energy loss due to cell wall vibration
- surface rigidity sound energy loss due to skin layer vibration
- basis weight sound transmission loss from inside to outside due to density reduction
- a foamed molded product when such a foamed molded product is applied to a duct for an on-vehicle air conditioner used in an air conditioner such as a heating, ventilation and air conditioning system (HVAC) mounted on the vehicle, the operation sound of the on-vehicle air conditioner is generated. Reaching the passenger compartment is suppressed or prevented, and the comfort in the passenger compartment can be improved.
- HVAC heating, ventilation and air conditioning system
- a foamed molded product is applied to a duct for an in-vehicle air conditioner, a temperature difference at the entrance and exit of the in-vehicle air conditioner duct is reduced, the air conditioning efficiency of the air conditioner is improved, and the comfort in the vehicle interior is improved. Can be improved.
- the cruising distance of the electric vehicle can be extended as the air conditioning efficiency of the air conditioner increases.
- a fabric weight is 0.075 g / cm ⁇ 2 > or less from a viewpoint of a noise reduction improvement.
- the basis weight is preferably 0.018 g / cm 2 or more.
- the foaming ratio is preferably 3.4 to 10 times, more preferably 3.4 to 8 times, from the viewpoint of improving heat insulation and productivity. More preferably, it is 5 to 8 times.
- the thermal conductivity of the foam material is almost the same as the theoretical value obtained by the composite law. That is, the thermal conductivity ⁇ c of the foam material is the thermal conductivity of the foam base material (eg, polypropylene), ⁇ m , the thermal conductivity of air ⁇ g , and the volume fraction of air (porosity) V When g , it is calculated by the following formula (I).
- the expansion ratio exceeds 8 times the effect of improving the heat insulation is saturated, while 3.4 to 8 times is preferable in order to maintain the strength required for the duct for the vehicle air conditioner.
- the foaming ratio is preferably 3.4 to 10 times in a duct for a domestic air conditioner with few layout restrictions. From the viewpoint of cost reduction, the expansion ratio is preferably 10 times or less.
- the foaming ratio of the foam material is 5 times or more
- the heat insulation is further improved.
- the expansion ratio is particularly preferably 10 times or less.
- the closed cell ratio is preferably 60% or more, and more preferably 75% or more, from the viewpoint of improving heat insulation and strength. From the viewpoint of improving productivity, the closed cell ratio is preferably 90% or less.
- the “closed cell ratio” means a ratio of the volume of closed cells to the volume of all bubbles in a porous body such as a foamed molded body.
- a closed cell means the bubble by which the bubble is completely enclosed by the bubble wall among the bubbles in a porous body like a foaming molding.
- the closed cell ratio can be defined by a value measured by the following method, but is not necessarily limited thereto.
- the center part of the wall surface of the foam blow molded product (shape: cylindrical, height: 700 mm, inner diameter: 100 mm, thickness X mm (X ⁇ 2)) is cut out to 10 ⁇ 10 ⁇ 2 mm.
- the true density (D) of the measurement sample is measured by a liquid layer replacement method (pycnometer method).
- the sample and the medium are placed in the cell of the apparatus, and the sample pores and Perform deaeration to infiltrate the liquid between the particles, then add the liquid to a certain liquid surface, weigh it, measure the liquid temperature at that time, and calculate the true density from the weight of the liquid medium replaced by the sample.
- D continuous vent volume
- Voc continuous vent volume
- the measurement sample dimensions are measured, and the apparent (geometric) volume (Vg) of the measurement sample is calculated (2).
- the weight (W) of the measurement sample is measured (3).
- the closed pore volume (Vc) and closed cell ratio (Cc) are calculated from the numerical values obtained in (1) to (3) and the following formulas (II) and (III). The value is an average value of 5 samples.
- Vc Vg ⁇ W / D ⁇ Voc (II)
- Cc Vc / Vg ⁇ 100 (III)
- the average cell diameter is preferably 50 to 700 ⁇ m from the viewpoint of improving heat insulation.
- the average bubble diameter is smaller than 50 ⁇ m, the bubble wall becomes thin, and when bent, the wall may be damaged and air may escape.
- the average bubble diameter is larger than 700 ⁇ m, the bubble wall becomes thick, and when bent, the wall may be damaged and air may escape.
- average bubble diameter means the average value of bubbles in the foamed molded product.
- the average bubble diameter can be defined by a value measured by the following method, but is not necessarily limited thereto.
- the average value of the bubble diameter a in the thickness direction of the sample and the average value of the bubble diameter c in the longitudinal direction are respectively determined by the following methods, and the average value of a and c is taken as the bubble diameter.
- the hollow forming portion of the molded body is approximately divided into two in the direction (longitudinal direction) perpendicular to the circumferential direction and the thickness direction of the sample, and two vertical cross sections are obtained.
- two opposing vertical cross-sections present in pairs are each magnified and projected by a microscope or the like, and all of the blow-molded foam is formed in the thickness direction near the center of the width direction orthogonal to the thickness direction on the projection image.
- a line segment ( ⁇ ) over the thickness is drawn, and the length L3 of the line segment ( ⁇ ) on the image is measured.
- the image is not used for the measurement of the above physical properties, but is measured by projecting another part. It shall be used for Next, a double line having a width L3 parallel to the line segment ( ⁇ ) and parallel to the line segment ( ⁇ ) is drawn over the entire thickness of the formed body.
- the total bubbles existing inside the double line are measured (except for the bubbles that intersect the double line), and the maximum length in the thickness direction of the internal diameter of each bubble and the internal diameter of the bubble The maximum length in the longitudinal direction is measured, and those measured values are divided by the magnification at the time of taking a magnified photograph, thereby obtaining the bubble diameters a and c of each bubble.
- the value of the average bubble diameter is the average value of the bubble diameters obtained by cutting out samples from the five molded bodies and using the measurement method.
- the air conditioner for vehicle use is complicated because it is elastically deformed without cracking even when bent. It is suitable as an apparatus duct.
- thermoplastic resin can be cited as a preferred example from the viewpoint of excellent moldability.
- thermoplastic resin is a polyolefin resin from the viewpoint of being inexpensive.
- polyvinyl chloride resins such as polyvinyl chloride, polyvinyl acetate, and polyvinylidene chloride, polyamide, polyacetal, polycarbonate, polyester such as polybutylene terephthalate and polyethylene terephthalate, polystyrene,
- Other thermoplastic resins such as polyethylene oxide / polystyrene alloy, polytetrafluoroethylene, polyacrylonitrile butadiene resin, polyacrylonitrile styrene resin, polyacryl resin, modified polyphenylene ether, and polyurethane can also be applied.
- polystyrene-based resin polypropylene and polyethylene can be suitably used from the viewpoint that they are inexpensive and have established blow molding technology.
- an alloy of these thermoplastic resins or an elastomer, rubber or the like may be added with these thermoplastic resins as the main component.
- the thickness is thick from the viewpoint of heat insulation. Is preferred. In-vehicle air conditioner ducts have restrictions on the outer diameter of the layout in order to prevent interference with peripheral parts, and there are restrictions on securing the inner diameter in order to reduce the flow resistance of the air flow.
- the thickness is about 0.7 to 5.0 mm. Note that the thickness is preferably set to 2 to 5.0 mm from the viewpoint of ensuring sound deadening and heat insulation properties and improving productivity.
- the foamed molded article of the present embodiment is not particularly limited, but the flexural modulus is preferably 100 to 500 MPa, more preferably 200 to 400 MPa, from the viewpoint of improving the sound deadening property. 250 to 350 MPa is more preferable.
- the foamed molded product of the present embodiment is not particularly limited, but from the viewpoint of improving the sound deadening property, it is T / H ⁇ (HT) 2 when the thickness is Tmm and the foaming magnification is H times.
- the value calculated from the relational expression is preferably larger than 0.75 and smaller than 13, and more preferably 0.8 or more and 10 or less. 1.0 or more and 8 or less is more preferable, and 3 or more and 6 or less is particularly preferable.
- the air conditioner duct and the vehicle air conditioner duct according to the present embodiment include the above-described foamed molded body according to the embodiment of the present invention. Further, the duct according to the present embodiment may have a configuration including an internally bonded sound-absorbing urethane on the inside, or a configuration including an externally bonded urethane for preventing condensation on the outside. Note that the duct of the present embodiment includes only a foam molded body, that is, a foam molded body alone.
- the foamed molded body according to one embodiment of the present invention described above it is possible to achieve both excellent silence and heat insulation.
- the blowing noise can be reduced, and the pink noise is comparable, so the internal sound-absorbing urethane can be eliminated and lightweight. Can be achieved.
- the operation sound of the vehicle air conditioner reaches the vehicle interior, and the comfort in the vehicle interior can be improved.
- the temperature difference at the entrance and exit of the on-vehicle air conditioner duct is reduced, the air conditioning efficiency of the air conditioner is improved, and the comfort in the passenger compartment can be improved.
- the cruising distance of the electric vehicle can be extended as the air conditioning efficiency of the air conditioning device improves.
- Example 1 The foamed molded body of this example having a thickness of 3 mm, a weight per unit area of 0.045 g / cm 2 , a foaming ratio of 6.3 times, a closed cell ratio of 83%, and an average cell diameter of 164 ⁇ m by foam blow molding from solid polypropylene Got.
- the closed cell ratio and the average cell diameter were measured by the method described above. The same applies hereinafter.
- Example 2 By foam blow molding from solid polypropylene, a foam molded body of this example having a thickness of 4 mm, a basis weight of 0.072 g / cm 2 , a foaming ratio of 5 times, an independent cell ratio of 86%, and an average cell diameter of 150 ⁇ m is obtained. It was.
- Example 3 Foam molded body of this example having a thickness of 4 mm, a weight per unit area of 0.060 g / cm 2 , a foaming ratio of 6.7 times, a closed cell ratio of 81%, and an average cell diameter of 173 ⁇ m by foam blow molding from solid polypropylene Got.
- Example 4 The foamed molded article of this example having a thickness of 5 mm, a basis weight of 0.075 g / cm 2 , a foaming ratio of 6.5 times, a closed cell ratio of 79%, and an average cell diameter of 187 ⁇ m by foam blow molding from solid polypropylene Got.
- Example 5 The foamed molded article of this example having a thickness of 4 mm, a basis weight of 0.090 g / cm 2 , a foaming ratio of 3.4 times, a closed cell ratio of 80%, and an average cell diameter of 133 ⁇ m by foam blow molding from solid polypropylene Got.
- Example 6 The foamed molded body of this example having a thickness of 5 mm, a basis weight of 0.090 g / cm 2 , a foaming ratio of 4.8 times, a closed cell ratio of 83%, and an average cell diameter of 148 ⁇ m by foam blow molding from solid polypropylene Got.
- Table 1 A part of the specification of each example is shown in Table 1. Note that “ ⁇ [dB]” in Table 1 indicates that the larger the value, the better the silencing performance. In addition, “(1) Blow” in the table assumes noise caused by blow, and an air volume of 4 m 3 / min assumes a weak air volume and an air volume of 7 m 3 / min. The thing assumes a strong air volume, and “(2) Pink noise” assumes heating, ventilation and air conditioning system (HVAC) operation sounds.
- HVAC heating, ventilation and air conditioning system
- HVAC Heating, ventilation and air conditioning system
- Examples 1 to 6 belonging to the scope of the present invention have excellent noise reduction compared to Comparative Examples 1 to 5 outside the present invention.
- the noise reduction performance when the air volume is 4 m 3 / min is about 1 dB
- the noise reduction performance when the air volume is 7 m 3 / min is about 3 dB. It turns out that it is more excellent.
- Example 1 in which the value calculated from the relational expression T / H ⁇ (HT) 2 (in this relational expression satisfies the relation of T / H ⁇ 1) is 1.0 or more and 8 or less. It can be seen that 3 and 4 are more excellent in noise reduction performance, and Examples 1 and 3 in which values calculated from the above relational expressions are 3 or more and 6 or less are particularly excellent in noise reduction performance.
- the resonance frequency of each example is 10000 Hz or more, road noise with a frequency of about 100 to 500 Hz, engine noise with a frequency of about 250 to 3000 Hz, blowing noise with a frequency of about 800 to 1500 Hz, heating and ventilation with a frequency of about 2780 Hz.
- HVAC air conditioning system
- the expansion ratio is 3.4 times or more, it becomes a foamed molded article having excellent heat insulation properties, and if the expansion ratio is 5 times or more, it becomes a foamed molded article having further excellent heat insulation properties.
- the expansion ratio is preferably 3.4 to 10 times from the viewpoint of cost reduction.
- the weight per unit area was within a general thickness range of 0.7 to 5.0 mm and a foaming ratio of 8 times or less. Significant noise reduction was confirmed in the range of 0.090 g / cm 2 or less. Therefore, as a duct for an on-vehicle air conditioner used under various restrictions, the expansion ratio is 3.4 to 8 times, the thickness is 0.7 to 5.0 mm, and the basis weight is 0.090 g / cm 2 or less. It can be seen that it is preferable to apply a cylindrical foamed molded article having both excellent heat insulation and sound deadening properties. It can also be seen that the expansion ratio is preferably 5 to 8 times from the viewpoint of further improving the heat insulation.
- the foamed molded article having a closed cell ratio of 60% or more, and further 75% or more has excellent heat insulating properties and strength.
- the foamed molded article having an average cell diameter of 50 to 700 ⁇ m has excellent heat insulating properties without causing air to escape.
- the foam molded body formed by foaming a thermoplastic resin such as a polyolefin resin (for example, polypropylene) is excellent in moldability and used in various restrictions. It is suitable as an apparatus duct.
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Abstract
Description
Cc=Vc/Vg×100・・・(III)
ソリッドポリプロピレンから発泡ブロー成形により、厚みが3mm、目付け量が0.045g/cm2、発泡倍率が6.3倍、独立気泡率が83%、平均気泡径が164μmである本例の発泡成形体を得た。なお、独立気泡率及び平均気泡径は上述した方法で測定した。以下同様である。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが4mm、目付け量が0.072g/cm2、発泡倍率が5倍、独立気泡率が86%、平均気泡径が150μmである本例の発泡成形体を得た。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが4mm、目付け量が0.060g/cm2、発泡倍率が6.7倍、独立気泡率が81%、平均気泡径が173μmである本例の発泡成形体を得た。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが5mm、目付け量が0.075g/cm2、発泡倍率が6.5倍、独立気泡率が79%、平均気泡径が187μmである本例の発泡成形体を得た。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが4mm、目付け量が0.090g/cm2、発泡倍率が3.4倍、独立気泡率が80%、平均気泡径が133μmである本例の発泡成形体を得た。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが5mm、目付け量が0.090g/cm2、発泡倍率が4.8倍、独立気泡率が83%、平均気泡径が148μmである本例の発泡成形体を得た。
ソリッドポリプロピレンからブロー成形により、厚みが1.7mm、目付け量が0.153g/cm2、発泡倍率が1倍である本例の成形体を得た。
比較例1の成形体のダクト開口部の内側に吸音ウレタンを貼り付けて、本例の成形体を得た。
ソリッドポリプロピレンからブロー成形により、厚みが0.8mm、目付け量が0.072g/cm2、発泡倍率が1倍である本例の成形体を得た。
比較例3の成形体のダクト開口部の内側に吸音ウレタンを貼り付けて、本例の成形体を得た。
ソリッドポリプロピレンから発泡ブロー成形により、厚みが3mm、目付け量が0.108g/cm2、発泡倍率が2.5倍、独立気泡率が85%、平均気泡径が129μmである本例の発泡成形体を得た。
(1)送風による騒音を想定したものについては、測定サンプルについては、リアダクト型長さ1130mmとし、ウレタンはダクト開口部(入口部内面及び出口部内面に50mm幅)に貼り付けた。また、音源については、ダクト出口における風量を4m3/min、7m3/minとした。測音方法は、音圧計:1/3オクターブバンド、A特性、測定点:実車相当の耳位置(具体的には、図1におけるX点である。)である。
(2)暖房、換気及び空調システム(HVAC)動作音を想定したものについては、測定サンプルについては、センター及びサイドベント型ダクトとして、ウレタンは暖房、換気及び空調システム(HVAC)嵌合部付近の内側全面(15g)に貼り付けた。また、音源については、ダクト入口における基準ノイズ音を70dBAとした。測音方法は、音圧計:1/3オクターブバンド、A特性、測定点:センターベント出口(具体的には、図2におけるY、Z点である。)であり、平均値で評価した。
各種発泡倍率の発泡成形体における熱伝導性を測定した。得られた結果を図3に示す。
2 発泡成形体
4 吸音ウレタン
10 ノイズ音源(暖房、換気及び空調システム(HVAC))
RC 残響室
SC 防音室
Claims (12)
- 筒状形状を有し、樹脂を発泡させて成る発泡成形体であって、
目付け量が0.090g/cm2以下であり、
発泡倍率が3.4~40倍である
ことを特徴とする発泡成形体。 - 発泡倍率が3.4~10倍であることを特徴とする請求項1に記載の発泡成形体。
- 発泡倍率が3.4~8倍であることを特徴とする請求項1又は2に記載の発泡成形体。
- 発泡倍率が5~8倍であることを特徴とする請求項1~3のいずれか1つの項に記載の発泡成形体。
- 独立気泡率が60%以上であることを特徴とする請求項1~4のいずれか1つの項に記載の発泡成形体。
- 独立気泡率が75%以上であることを特徴とする請求項1~5のいずれか1つの項に記載の発泡成形体。
- 上記平均気泡径が50~700μmであることを特徴とする請求項1~6のいずれか1つの項に記載の発泡成形体。
- 上記樹脂が、熱可塑性樹脂であることを特徴とする請求項1~7のいずれか1つの項に記載の発泡成形体。
- 上記樹脂が、ポリオレフィン系樹脂であることを特徴とする請求項1~8のいずれか1つの項に記載の発泡成形体。
- 上記樹脂が、ポリプロピレン又はポリエチレンであることを特徴とする請求項1~9のいずれか1つの項に記載の発泡成形体。
- 請求項1~10のいずれか1つの項に記載の発泡成形体を備えたことを特徴とする空気調節装置用ダクト。
- 請求項1~10のいずれか1つの項に記載の発泡成形体を備えたことを特徴とする車載空気調節装置用ダクト。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14867075.5A EP3078705B1 (en) | 2013-12-03 | 2014-10-16 | Foam molded body, duct for air conditioner, and duct for vehicle air conditioner |
CN201480066194.3A CN105814125B (zh) | 2013-12-03 | 2014-10-16 | 发泡成形体、空气调节装置用管道和车载空气调节装置用管道 |
JP2015551422A JP6037053B2 (ja) | 2013-12-03 | 2014-10-16 | 発泡成形体、空気調節装置用ダクト及び車載空気調節装置用ダクト |
US15/101,144 US10315491B2 (en) | 2013-12-03 | 2014-10-16 | Foam molded body, duct for air conditioner, and duct for vehicle air conditioner |
BR112016012446-4A BR112016012446B1 (pt) | 2013-12-03 | 2014-10-16 | Corpo de espuma moldado, tubo para ar condicionado, e tubo para ar condicionado de veículo |
MX2016006776A MX369230B (es) | 2013-12-03 | 2014-10-16 | Cuerpo moldeado de espuma, ducto para acondicionador de aire, y ducto para acondicionador de aire de vehiculo. |
RU2016126394A RU2610497C1 (ru) | 2013-12-03 | 2014-10-16 | Отформованный из вспененного материала корпус, трубопровод для кондиционера воздуха и трубопровод для кондиционера воздуха транспортного средства |
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JP2013-250218 | 2013-12-03 | ||
JP2013250218 | 2013-12-03 |
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WO2015083447A1 true WO2015083447A1 (ja) | 2015-06-11 |
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PCT/JP2014/077554 WO2015083447A1 (ja) | 2013-12-03 | 2014-10-16 | 発泡成形体、空気調節装置用ダクト及び車載空気調節装置用ダクト |
Country Status (9)
Country | Link |
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US (1) | US10315491B2 (ja) |
EP (1) | EP3078705B1 (ja) |
JP (1) | JP6037053B2 (ja) |
CN (1) | CN105814125B (ja) |
BR (1) | BR112016012446B1 (ja) |
MX (2) | MX369230B (ja) |
MY (1) | MY174281A (ja) |
RU (1) | RU2610497C1 (ja) |
WO (1) | WO2015083447A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020031854A1 (ja) | 2018-08-09 | 2020-02-13 | 旭化成株式会社 | 積層構造体 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6923796B2 (ja) * | 2017-08-25 | 2021-08-25 | キョーラク株式会社 | 構造体、車両用構造体及び車両用空調ダクト |
DE202019106235U1 (de) | 2019-11-08 | 2019-12-05 | Mahle International Gmbh | Belüftungsvorrichtung und Leichtbaugehäuse |
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WO1999028111A1 (fr) * | 1997-11-28 | 1999-06-10 | Jsp Corporation | Mousse moulee par soufflage et procede de fabrication |
JP2004116956A (ja) * | 2002-09-27 | 2004-04-15 | Jsp Corp | ダクト |
JP2005193726A (ja) | 2003-12-26 | 2005-07-21 | Kyoraku Co Ltd | 発泡ダクト |
JP2009275119A (ja) * | 2008-05-15 | 2009-11-26 | Japan Polypropylene Corp | ポリプロピレン系中空発泡成形体 |
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JPS6011330A (ja) | 1983-07-01 | 1985-01-21 | Ekuseru Kk | 発泡層を有する中空成形品の製造方法 |
SU1414701A1 (ru) * | 1986-03-28 | 1988-08-07 | Запорожский автомобильный завод "Коммунар" | Кондиционер грузового транспортного средства |
US5527573A (en) * | 1991-06-17 | 1996-06-18 | The Dow Chemical Company | Extruded closed-cell polypropylene foam |
JP3997334B2 (ja) | 2002-09-27 | 2007-10-24 | 株式会社ジェイエスピー | ブロー成形体からなるダクト |
JP2007136966A (ja) | 2005-11-21 | 2007-06-07 | Asahi Fiber Glass Co Ltd | ポリオレフィン系樹脂発泡体の製造方法 |
JP5025549B2 (ja) * | 2008-03-31 | 2012-09-12 | キョーラク株式会社 | 発泡ブロー成形品およびその製造方法 |
JP5563768B2 (ja) | 2009-01-21 | 2014-07-30 | 株式会社ジェイエスピー | ポリオレフィン系樹脂発泡ブロー成形体 |
JP5360975B2 (ja) | 2009-05-01 | 2013-12-04 | 株式会社ジェイエスピー | ポリエチレン系樹脂発泡ブロー成形体の製造方法およびポリエチレン系樹脂発泡ブロー成形体 |
JP3157009U (ja) | 2009-11-10 | 2010-01-28 | 株式会社ジェイエスピー | 車両用空調ダクト |
JP5602468B2 (ja) | 2010-03-24 | 2014-10-08 | 株式会社ジェイエスピー | ポリプロピレン系樹脂発泡ブロー成形体の製造方法 |
JP2013107963A (ja) | 2011-11-18 | 2013-06-06 | Kyoraku Co Ltd | 発泡成形品およびその製造方法 |
-
2014
- 2014-10-16 RU RU2016126394A patent/RU2610497C1/ru active
- 2014-10-16 EP EP14867075.5A patent/EP3078705B1/en active Active
- 2014-10-16 JP JP2015551422A patent/JP6037053B2/ja active Active
- 2014-10-16 CN CN201480066194.3A patent/CN105814125B/zh active Active
- 2014-10-16 MY MYPI2016701869A patent/MY174281A/en unknown
- 2014-10-16 BR BR112016012446-4A patent/BR112016012446B1/pt active IP Right Grant
- 2014-10-16 US US15/101,144 patent/US10315491B2/en active Active
- 2014-10-16 MX MX2016006776A patent/MX369230B/es active IP Right Grant
- 2014-10-16 WO PCT/JP2014/077554 patent/WO2015083447A1/ja active Application Filing
-
2016
- 2016-05-25 MX MX2019004900A patent/MX2019004900A/es unknown
Patent Citations (4)
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WO1999028111A1 (fr) * | 1997-11-28 | 1999-06-10 | Jsp Corporation | Mousse moulee par soufflage et procede de fabrication |
JP2004116956A (ja) * | 2002-09-27 | 2004-04-15 | Jsp Corp | ダクト |
JP2005193726A (ja) | 2003-12-26 | 2005-07-21 | Kyoraku Co Ltd | 発泡ダクト |
JP2009275119A (ja) * | 2008-05-15 | 2009-11-26 | Japan Polypropylene Corp | ポリプロピレン系中空発泡成形体 |
Non-Patent Citations (1)
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See also references of EP3078705A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020031854A1 (ja) | 2018-08-09 | 2020-02-13 | 旭化成株式会社 | 積層構造体 |
JPWO2020031854A1 (ja) * | 2018-08-09 | 2021-06-10 | 旭化成株式会社 | 積層構造体 |
JP7029540B2 (ja) | 2018-08-09 | 2022-03-03 | 旭化成株式会社 | 積層構造体 |
US12049070B2 (en) | 2018-08-09 | 2024-07-30 | Asahi Kasei Kabushiki Kaisha | Laminated structure |
Also Published As
Publication number | Publication date |
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JP6037053B2 (ja) | 2016-12-07 |
CN105814125A (zh) | 2016-07-27 |
MX2019004900A (es) | 2019-08-05 |
JPWO2015083447A1 (ja) | 2017-03-16 |
CN105814125B (zh) | 2018-02-27 |
BR112016012446B1 (pt) | 2021-10-05 |
EP3078705A4 (en) | 2017-04-26 |
MY174281A (en) | 2020-04-01 |
MX2016006776A (es) | 2016-09-07 |
BR112016012446A2 (pt) | 2017-08-08 |
EP3078705A1 (en) | 2016-10-12 |
RU2610497C1 (ru) | 2017-02-13 |
US10315491B2 (en) | 2019-06-11 |
EP3078705B1 (en) | 2020-04-15 |
MX369230B (es) | 2019-11-01 |
US20180170148A1 (en) | 2018-06-21 |
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