CN103665581A - TPV (Thermoplastic Vulcanizate) material with good welding property and machining method thereof - Google Patents
TPV (Thermoplastic Vulcanizate) material with good welding property and machining method thereof Download PDFInfo
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- CN103665581A CN103665581A CN201210321105.8A CN201210321105A CN103665581A CN 103665581 A CN103665581 A CN 103665581A CN 201210321105 A CN201210321105 A CN 201210321105A CN 103665581 A CN103665581 A CN 103665581A
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 238000003466 welding Methods 0.000 title claims abstract description 31
- 229920001169 thermoplastic Polymers 0.000 title abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 title abstract description 3
- 238000003754 machining Methods 0.000 title abstract 3
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000004073 vulcanization Methods 0.000 claims abstract description 16
- 239000005977 Ethylene Substances 0.000 claims abstract description 12
- 229920001577 copolymer Polymers 0.000 claims abstract description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910052623 talc Inorganic materials 0.000 claims abstract description 8
- 235000012222 talc Nutrition 0.000 claims abstract description 8
- 239000000454 talc Substances 0.000 claims abstract description 8
- -1 Polypropylene Polymers 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 241000218970 Pepper golden mosaic virus - [Mexico] Species 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 17
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 10
- 239000005662 Paraffin oil Substances 0.000 claims description 7
- AXZWODMDQAVCJE-UHFFFAOYSA-L Tin(II) chloride Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 claims description 6
- 238000005453 pelletization Methods 0.000 claims description 6
- 235000011150 stannous chloride Nutrition 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 abstract 3
- 238000003723 Smelting Methods 0.000 abstract 2
- 239000011265 semifinished product Substances 0.000 abstract 2
- 229920002725 Thermoplastic elastomer Polymers 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000010690 paraffinic oil Substances 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
-
- 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
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
-
- 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
- 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
- B29C2948/9258—Velocity
-
- 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
-
- 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
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
The invention belongs to the technical field of thermoplastic elastomer materials, and in particular relates to a TPV (Thermoplastic Vulcanizate) material with good welding property, and a machining method of the TPV material. The machining method is characterized by comprising the following steps: mixing 1/2 of PP (Polypropylene), 30-40 parts of EPDM (Ethylene-Propylene-Diene Monomer), 20-30 parts of paraffinic oil, 10-15 parts of talcum powder, 0.5-1.5 parts of vulcanizing agent and 10-15 parts of ethylene and propylene copolymer for 10-15 minutes at a low temperature in a mixing machine; feeding a mixture into a double-screw rod extruder by virtue of lateral feeding equipment, performing dynamic vulcanization for 1-2 minutes under the conditions that the main machine rotation speed is 300-600rpm (revolutions per minute) and the smelting temperature is 200-230 DEG C, subsequently cutting into vulcanized semi-finished product particles; adding the rest 1/2 of PP into the semi-finished product particles, mixing up and subsequently smelting and commixing for 1-2 minutes by using the double-screw rod extruder; finally pelleting by using underwater pelleting equipment, drying and packaging the particles into a finished product so as to obtain the TPV material. The prepared material has both various excellent properties of universal TPV materials, and has the advantages of good welding property and high welding strength.
Description
Technical field: the invention belongs to thermoplastic elastic material production technical field, be specifically related to a kind of TPV material and working method of good welding performance.
Background technology: at present, TPV material is that EPDM is in dynamic vulcanization process, be sheared into micro-size particles, and be dispersed in PP plastics mutually in, formed the blend of unique two-phase coexistent, this special construction, in carrying out the process of material later stage welding, because rubber phase vulcanizes and not melting more, and PP is dispersed in the inierpeneirating network structure of rubber phase mutually greatly, a large amount of existence of rubber phase reduce the thermally melting of plastics phase, and its shortcoming is, the welding property of material is poor, and welding strength is low.
Summary of the invention: the object of this invention is to provide a kind of good welding performance, TPV material and the working method of the good welding performance that welding strength is high.
Technical scheme of the present invention is: a kind of TPV material of good welding performance, is characterized in that being comprised of by weight following component: PP 20-30, EPDM 30-40, copolymer from ethylene and propylene 10-15, paraffin oil 20-30, talcum powder 10-15, vulcanizing agent 0.5-1.5.Wherein, described vulcanizing agent is octyl phenol urea formaldehyde and tin protochloride by weight the composition of 4: 1.
A working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
Its best-of-breed technology scheme is: a kind of TPV material of good welding performance, is characterized in that being comprised of by weight following component: PP25, EPDM35, copolymer from ethylene and propylene 12.5, paraffin oil 25, talcum powder 12.5, vulcanizing agent 1.Wherein, described vulcanizing agent is octyl phenol urea formaldehyde and tin protochloride by weight the composition of 4: 1.
A working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
The invention has the beneficial effects as follows, first that 1/2PP, EPDM, copolymer from ethylene and propylene and other auxiliary agents is mixing, carry out again dynamic vulcanization, make EPDM be cross-linked and be dispersed in PP phase neutralization of ethylene and propylene copolymer with micron order size uniform, copolymer from ethylene and propylene, because of the singularity of its structure, has part rebound characteristics, and the consistency of copolymer from ethylene and propylene and EPDM and PP is all fine, because of it, be not cross-linked, can serve as partial continuous phase again simultaneously; Through dynamic vulcanization reaction, generate TPV work in-process particle; Finally TPV work in-process particle and remaining PP are carried out to melt blending, under the effect of high temperature, high-shear, pass through twin screw extruder, make material obtain the good elastic while, the ratio of external phase is increased to some extent, in second melting Blending Processes, dose part PP, reduced the amount that enters the PP in vulcanized rubber inierpeneirating network structure, made the thermally melting of whole TPV material better, thereby made material obtain good welding property.The TPV material of making has good welding performance, the advantage that welding strength is high.
Embodiment: further illustrate technical scheme of the present invention below in conjunction with specific embodiment.
Embodiment 1: a kind of TPV material of good welding performance, is characterized in that being comprised of by weight following component: PP 30, EPDM 30, copolymer from ethylene and propylene 10, paraffin oil 20, talcum powder 15, octyl phenol urea formaldehyde and tin protochloride be the composition 1.5 of 4: 1 by weight.
A working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
Embodiment 2: a kind of TPV material of good welding performance, is characterized in that being comprised of by weight following component: PP 20, EPDM 40, copolymer from ethylene and propylene 15, paraffin oil 30, talcum powder 10, octyl phenol urea formaldehyde and tin protochloride be the composition 0.5 of 4: 1 by weight.
A working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
Embodiment 3: a kind of TPV material of good welding performance, is characterized in that being comprised of by weight following component: PP 25, EPDM 35, copolymer from ethylene and propylene 12.5, paraffin oil 25, talcum powder 12.5, octyl phenol urea formaldehyde and tin protochloride be the composition 1 of 4: 1 by weight.
A working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
The test result of material of the present invention is: shore hardness (10sec): 60-80A; Tensile strength (500mm/min): 8.0～12.0MPa; Elongation at break (500mm/min): 350～550%; Melting index (230 ℃ of * 5k): 0.5-2.5g/10min.By contrast, this TPV material is compared with general purpose grade TPV material, and properties is suitable, and welding property and welding strength obviously improve.
Claims (4)
1. a TPV material for good welding performance, is characterized in that being comprised of by weight following component: PP 20-30, EPDM 30-40, copolymer from ethylene and propylene 10-15, paraffin oil 20-30, talcum powder 10-15, vulcanizing agent 0.5-1.5.
2. by the TPV material of a kind of good welding performance claimed in claim 1, it is characterized in that being formed by weight by following component: PP25, EPDM35, copolymer from ethylene and propylene 12.5, paraffin oil 25, talcum powder 12.5, vulcanizing agent 1.
3. by the TPV material of a kind of good welding performance described in claim 1 or 2, it is characterized in that, described vulcanizing agent is octyl phenol urea formaldehyde and tin protochloride by weight the composition of 4: 1.
4. a working method for the TPV material of good welding performance, is characterized in that comprising following processing step:
(1) mixing: other component of a half-sum of the PP share in above-mentioned component is added at normal temperatures together in mixing roll and carried out mixing 10～15 minutes;
(2) dynamic vulcanization: by side direction feeding equipment feeding twin screw extruder, be 300～600 rev/min at engine speed by above-mentioned miscellany, melt temperature is to carry out dynamic vulcanization cutting work in-process particle after 1～2 minute under the condition of 200～230 ℃;
(3) melt blending: carry out melt blending 1～2 minute by twin screw extruder after work in-process particle and remaining PP are mixed, then carry out pelletizing and through super-dry, particle is packaged into finished product by underwater cutpellet equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321105.8A CN103665581A (en) | 2012-08-28 | 2012-08-28 | TPV (Thermoplastic Vulcanizate) material with good welding property and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210321105.8A CN103665581A (en) | 2012-08-28 | 2012-08-28 | TPV (Thermoplastic Vulcanizate) material with good welding property and machining method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103665581A true CN103665581A (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210321105.8A Pending CN103665581A (en) | 2012-08-28 | 2012-08-28 | TPV (Thermoplastic Vulcanizate) material with good welding property and machining method thereof |
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| Country | Link |
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| CN (1) | CN103665581A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558866A (en) * | 2015-01-30 | 2015-04-29 | 山东道恩高分子材料股份有限公司 | High-performance low-VOC (volatile organic compound) material for soft decorations of automobiles and preparation method thereof |
| CN105482266A (en) * | 2016-01-12 | 2016-04-13 | 安徽中鼎橡塑制品有限公司 | Thermoplastic vulcanized rubber material for automobile steering device dust-proof cover and preparation method of thermoplastic vulcanized rubber material |
| CN110117392A (en) * | 2018-02-07 | 2019-08-13 | 清河汽车技术研究院 | A kind of thermoplastic elastomer (TPE) TPV material |
| CN110540700A (en) * | 2019-07-20 | 2019-12-06 | 浙江飞碟汽车制造有限公司 | high-melt-strength foamable modified PP material and preparation method thereof |
-
2012
- 2012-08-28 CN CN201210321105.8A patent/CN103665581A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558866A (en) * | 2015-01-30 | 2015-04-29 | 山东道恩高分子材料股份有限公司 | High-performance low-VOC (volatile organic compound) material for soft decorations of automobiles and preparation method thereof |
| CN105482266A (en) * | 2016-01-12 | 2016-04-13 | 安徽中鼎橡塑制品有限公司 | Thermoplastic vulcanized rubber material for automobile steering device dust-proof cover and preparation method of thermoplastic vulcanized rubber material |
| CN110117392A (en) * | 2018-02-07 | 2019-08-13 | 清河汽车技术研究院 | A kind of thermoplastic elastomer (TPE) TPV material |
| CN110540700A (en) * | 2019-07-20 | 2019-12-06 | 浙江飞碟汽车制造有限公司 | high-melt-strength foamable modified PP material and preparation method thereof |
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Application publication date: 20140326 |
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