CN107841056A - EPDM rubber sound insulating pad and preparation method - Google Patents

EPDM rubber sound insulating pad and preparation method Download PDF

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Publication number
CN107841056A
CN107841056A CN201711275382.9A CN201711275382A CN107841056A CN 107841056 A CN107841056 A CN 107841056A CN 201711275382 A CN201711275382 A CN 201711275382A CN 107841056 A CN107841056 A CN 107841056A
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CN
China
Prior art keywords
sound insulating
insulating pad
parts
epdm rubber
epdm
Prior art date
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Pending
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CN201711275382.9A
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Chinese (zh)
Inventor
原晓城
李文博
穆大强
马义明
张景亮
王传东
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TIANJIN ZHENHAI RUBBER TECHNOLOGY DEVELOPMENT Co Ltd
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TIANJIN ZHENHAI RUBBER TECHNOLOGY DEVELOPMENT Co Ltd
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Application filed by TIANJIN ZHENHAI RUBBER TECHNOLOGY DEVELOPMENT Co Ltd filed Critical TIANJIN ZHENHAI RUBBER TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201711275382.9A priority Critical patent/CN107841056A/en
Publication of CN107841056A publication Critical patent/CN107841056A/en
Pending legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • 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
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A kind of EPDM rubber sound insulating pad and preparation method, belong to rubber flame-retarded technical field, and in EPDM formulas, filling system largely adds barite inorganic filler, and activation Nano-meter SiO_2 is used in flame-retardant system2, and use Al（OH）2, Firebrake ZB, use the preferable flame retardant type plasticizer FR65 of compatibility in Plasticising system.It is an advantage of the invention that：Using fire retardant modified Nano SiO2With Al（OH）2It is used in combination, improves alone Al（OH）2The shortcomings that scattered uneven, physical property is not high, and and total amount be less than alone Al（OH）2Usage amount, due to Nano-meter SiO_22Modified working process has been carried out, it is easily scattered in the absence of agglomeration.Using flame-retardant plasticizer FR65, processing characteristics is not only improved, and improve fire resistance.Each system ties in formula, and every fire resistance meets En45545 index request, and feasible process.

Description

EPDM rubber sound insulating pad and preparation method
Technical field
The present invention relates to a kind of rubber flame-retarded technical field, more particularly to one kind meets that European Union railway En45545-2 prevents fires The EPDM rubber sound insulating pad and preparation method of standard.
Background technology
The fire savety of track vehicle receives much concern always.Nearly 2 years, EU countries's unified implementation standard EN45545-2：2013《The flameproof protection part 2 of track traffic rolling stock：The fire protection requirement of material and component》, material Fire safety mainly has the requirement of 4 aspects：Material therefor is not easy to be ignited, and can control fire spreading, cigarette caused by burning Escape sight can not be hindered, the toxicity in flue gas caused by burning can not produce harm to human body.The material of different rail vehicles Fire-protection standard all should be detected and required in terms of 4 more than.
Traditional sound insulating pad serves as main material using CPE, PVC etc. containing cl material, and due to containing halogen, anti-flammability is high, easily reaches Flame-retardancy requirements.In recent years because the requirement of environmental protection, most of occasion prohibit the use of halogen main material.Ethylene propylene diene rubber is not halogen Element, and can largely fill, so as to reach fire-retardant and sound insulation requirement.The typically a large amount of filling aluminums of the flame-retardant system of EP rubbers Magnesium, but processing technology certainly will be caused difficult, a large amount of plasticizer are filled, fire resistance can be reduced again, physical property is not high.It is above-mentioned to lack Put the flame-retarded technology index request for causing many ethylene propylene diene rubber products to meet European Union.
The content of the invention
For sound insulating pad flame-retardancy requirements of the track traffic using ethylene propylene diene rubber as base material, the present invention seeks to meet European Union R1 class material flame retardant ratings HL2 requirements in EN45545-2 standards, there is provided a kind of EPDM rubber sound insulating pad and preparation method, protect Card material meets standard flame-retardancy requirements, and technological requirement.
The purpose of the present invention is achieved through the following technical solutions：A kind of EPDM rubber sound insulating pad, it is characterised in that：It Including following component：
100 are measured based on rubber, its ratio of weight and number is：
Ethylene propylene diene rubber EPDM 553 100.0 part
ZnO 5.0 part
Stearic acid 2.0 part
Protection wax 1.0 part
Anti-aging agent RD 2.0 part
Carbon black N550 5.0~20.0 parts
Barite 80.0~100.0 parts
Modified Nano SiO2 50.0~80.0 parts
Al（OH）2 800.0~120.0 parts
Firebrake ZB 15.0-20.0 parts
Plasticizer FR65 20.0~30.0 parts
Sulphur 0.5~2.0 part
Altax 0.5~1.5 part
Accelerator TT 1.0~2.0 parts；
Described anti-aging agent RD is 2,2,4- trimethyl -1,2- dihyaroquinolines.
Described barite Main Ingredients and Appearance is barium sulfate.
Described modified Nano SiO2Main Ingredients and Appearance is the nano silicon of chemical activation processing.
Described plasticizer FR65 is phosphorus diacyloxy diphenyl ester.
Described altax is dithio-bis-benzothiazole.
Described accelerator TT is two thio tetra methylthiurams.
A kind of preparation method of EPDM rubber sound insulating pad, it is characterised in that：It comprises the following steps：
1st, dispensing：Weighed by formula as below；
100 are measured based on rubber, its ratio of weight and number is：
Ethylene propylene diene rubber EPDM 553 100.0 part
ZnO 5.0 part
Stearic acid 2.0 part
Protection wax 1.0 part
Anti-aging agent RD 2.0 part
Carbon black N550 5.0~20.0 parts
Barite 80.0~100.0 parts
Modified Nano SiO2 50.0~80.0 parts
Al（OH）2 800.0~120.0 parts
Firebrake ZB 15.0-20.0 parts
Plasticizer FR65 20.0~30.0 parts
Sulphur 0.5~2.0 part
Altax 0.5~1.5 part
Accelerator TT 1.0~2.0 parts；
2nd, prepared by rubber master batch：1/3 EPDM553, modified Nano SiO2Less than 110 DEG C, banburying 3 minutes, 50 to 60 DEG C, mill 5 is divided Clock, bottom sheet, 50 to 60 DEG C；
3rd, prepared by elastomeric compound：The rubber master batch of step 2 preparation, the ethylene propylene diene rubber EPDM553 of residue 2/3, other auxiliary agents weigh, low In 120 DEG C, banburying 6 minutes, 50 to 60 DEG C, mill 8 minutes, bottom sheet：50 to 60 DEG C, 2 minutes, 160 DEG C, sulfide film 30 divided Clock, sample, performance detection are cut by standard.
The advantages of the present invention are：
1st, using fire retardant modified Nano SiO2With Al（OH）2It is used in combination, alone Al can be improved（OH）2,Disperse uneven, physics The shortcomings that performance is not high, and and total amount be less than alone Al（OH）2Usage amount, due to Nano-meter SiO_22Modified processing is carried out Processing, it is easily scattered in the absence of agglomeration.
2nd, using flame-retardant plasticizer FR65, processing characteristics is not only improved, and improve fire resistance again.
3rd, each system ties in being formulated, and every fire resistance meets En45545 index request, and feasible process.
4th, rubber master batch is prepared, is advantageous to Nano-meter SiO_22It is preferably scattered.
Embodiment
Embodiment：A kind of EPDM rubber sound insulating pad, is prepared by formula as below：
Mixed refining process is carried out by raw material in listed formula and dosage：
（1）It is prepared by rubber master batch：
Weigh 1/3 EPDM553, modified Nano SiO2--- less than 110 DEG C, rubber master batch banburying 3 minutes --- 50 to 60 DEG C, mill 5 minutes --- bottom sheet：50 to 60 DEG C；
（2）It is prepared by elastomeric compound：
Rubber master batch, the EPDM553 of remainder 2/3, other auxiliary agents weigh --- less than 120 DEG C, banburying 6 minutes --- and 50 to 60 DEG C, open Refining 8 minutes --- bottom sheet：50 to 60 DEG C, 2 minutes --- 160 DEG C, sulfide film 30 minutes --- cuts sample --- by standard Performance detection.
Here is the performance comparison to this formula and traditional magnalium flame-retardant system：
Sequence number Performance Standard requirement This formula Without SiO2 Without FR65
1 Machinability Evaluation Feasible process Processing is more difficult Process highly difficult
2 CFE(KW/m2) ≥20a 26.7 27.5 22
3 MARHE(KW/m2) ≤90 52.8 68.5 78.9
4 DS (4) dimensionless ≤300 119.7 360.6 450.1
5 VOF4(min) ≤600 477 751 803
6 CITGDimensionless ≤0.9 0.03 0.02 0.03
Remarks：Standard is with reference to EN45545-2：2013 require about material HL2 flame retardant ratings,
Analyzed by above-mentioned performance comparison, containing SiO2It is feasible with FR65 Recipe, it is fire-retardant to meet standard requirement.
By embodiment and performance comparison analysis it was determined that in EPDM formulas, filling system largely adds barite Inorganic filler, using activation Nano-meter SiO_2 in flame-retardant system2, and use Al（OH）2, Firebrake ZB, in Plasticising system using compatibility compared with Good flame retardant type plasticizer FR65, the flame-retarded technology index request of European Union can not be met by efficiently solving ethylene propylene diene rubber product Problem.

Claims (8)

  1. A kind of 1. EPDM rubber sound insulating pad, it is characterised in that：It includes following component：
    100 are measured based on rubber, its ratio of weight and number is：
    。
  2. A kind of 2. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The anti-aging agent RD is 2,2,4- front threes Base -1,2- dihyaroquinolines.
  3. A kind of 3. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The barite Main Ingredients and Appearance is sulfuric acid Barium.
  4. A kind of 4. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The modified Nano SiO2Main Ingredients and Appearance For the nano silicon of chemical activation processing.
  5. A kind of 5. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The plasticizer FR65 is phosphorus diacyloxy Diphenyl ester.
  6. A kind of 6. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The altax is two thio hexichol And thiazole.
  7. A kind of 7. EPDM rubber sound insulating pad according to claim 1, it is characterised in that：The accelerator TT is two thio tetramethyls Base thiuram.
  8. A kind of 8. preparation method of EPDM rubber sound insulating pad described in claim 1, it is characterised in that：It comprises the following steps：
    （1）Dispensing：Weighed by formula as below；
    100 are measured based on rubber, its ratio of weight and number is：
    Ethylene propylene diene rubber EPDM 553 100.0 part ZnO 5.0 part Stearic acid 2.0 part Protection wax 1.0 part Anti-aging agent RD 2.0 part Carbon black N550 5.0~20.0 parts Barite 80.0~100.0 parts Modified Nano SiO2 50.0~80.0 parts Al（OH）2 800.0~120.0 parts Firebrake ZB 15.0-20.0 parts Plasticizer FR65 20.0~30.0 parts Sulphur 0.5~2.0 part Altax 0.5~1.5 part Accelerator TT 1.0~2.0 parts；
    （2）It is prepared by rubber master batch：1/3 EPDM553, activate Nano-meter SiO_22Less than 110 DEG C, banburying 3 minutes, 50 to 60 DEG C, mill 5 is divided Clock, bottom sheet, 50 to 60 DEG C；
    （3）It is prepared by elastomeric compound：Step（2）After the rubber master batch of preparation, remaining 2/3EPDM553, other auxiliary agents weigh, less than 120 DEG C, Banburying 6 minutes, 50 to 60 DEG C, mill 8 minutes, bottom sheet：50 to 60 DEG C, 2 minutes, 160 DEG C, sulfide film 30 minutes, by standard Cut sample, performance detection.
CN201711275382.9A 2017-12-06 2017-12-06 EPDM rubber sound insulating pad and preparation method Pending CN107841056A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108742699A (en) * 2018-06-28 2018-11-06 常州市第二人民医院 A kind of electronic auscultation device of dust control and noise absorption
CN109851926A (en) * 2018-12-28 2019-06-07 宁国绿谷新材料有限公司 A kind of production method and product encrypting gunslinging pad
US20210355305A1 (en) * 2017-12-21 2021-11-18 Contitech Luftfedersysteme Gmbh Article, in Particular Air Spring Bellows, a Metal-Rubber Element, or a Vibration Damper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395275A (en) * 2013-08-04 2013-11-20 四川蜀羊防水材料有限公司 Preparation method of composite deadening felt
CN105968591A (en) * 2016-07-15 2016-09-28 株洲时代新材料科技股份有限公司 Flame-retardant shock-absorption EPDM vulcanized rubber and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395275A (en) * 2013-08-04 2013-11-20 四川蜀羊防水材料有限公司 Preparation method of composite deadening felt
CN105968591A (en) * 2016-07-15 2016-09-28 株洲时代新材料科技股份有限公司 Flame-retardant shock-absorption EPDM vulcanized rubber and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210355305A1 (en) * 2017-12-21 2021-11-18 Contitech Luftfedersysteme Gmbh Article, in Particular Air Spring Bellows, a Metal-Rubber Element, or a Vibration Damper
CN108742699A (en) * 2018-06-28 2018-11-06 常州市第二人民医院 A kind of electronic auscultation device of dust control and noise absorption
CN108742699B (en) * 2018-06-28 2021-04-23 常州市第二人民医院 Dustproof electronic stethoscope that makes an uproar that falls
CN109851926A (en) * 2018-12-28 2019-06-07 宁国绿谷新材料有限公司 A kind of production method and product encrypting gunslinging pad

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Application publication date: 20180327