CN102775718A - Polypropylene modified material for expansion water tank of automobile and preparation method thereof - Google Patents

Polypropylene modified material for expansion water tank of automobile and preparation method thereof Download PDF

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Publication number
CN102775718A
CN102775718A CN2012102681751A CN201210268175A CN102775718A CN 102775718 A CN102775718 A CN 102775718A CN 2012102681751 A CN2012102681751 A CN 2012102681751A CN 201210268175 A CN201210268175 A CN 201210268175A CN 102775718 A CN102775718 A CN 102775718A
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CN
China
Prior art keywords
modified material
polypropylene
automobile
polypropylene modified
lldpe
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Pending
Application number
CN2012102681751A
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Chinese (zh)
Inventor
葛衍鹍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG HUA-TONG AUTOMOBILE MOULDS PLASTICS TECHNOLOGY CO LTD
Original Assignee
SHANDONG HUA-TONG AUTOMOBILE MOULDS PLASTICS TECHNOLOGY CO LTD
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Priority to CN2012102681751A priority Critical patent/CN102775718A/en
Publication of CN102775718A publication Critical patent/CN102775718A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • 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
    • B29C2948/9259—Angular 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
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

Abstract

The invention discloses a polypropylene modified material for an expansion water tank of an automobile and a preparation method thereof and belongs to the technical field of auto part manufacturing. The polypropylene modified material for the expansion water tank for the automobile comprises the following components in percentage by weight: 75-85 percent of propylene-ethylene block polypropylene copolymer, 10-20 percent of linear low density polyethylene (LLDPE) resin, 2-5 percent of ethylene propylene diene monomer (EPDM), 0.1-0.5 percent of nucleating agent and 0.1-0.5 percent of antioxidant. After being mixed according to the proportion, the materials are extruded and granulated by a double screw extruder under the conditions that the processing temperature is 210-240 DEG C, and the screw speed is 210-240 revolutions/minute. The polypropylene modified material has the beneficial effects that polypropylene is modified by the reasonable components according to the mixing proportion, so that the material has higher low-temperature impact strength and higher high-temperature creep resistance; and meanwhile, the hot plate welding performance of the material is improved, the material transparency is improved, and the production processing requirements and the use requirements of the expansion water tank for the automobile are completely satisfied.

Description

A kind of automobile expansion tank is with polypropylene modified material and preparation method thereof
Technical field
The present invention relates to a kind of polypropylene modified material and preparation method thereof, particularly a kind ofly be used to make polypropylene modified material that the automobile expansion tank uses and preparation method thereof.
Background technology
Expansion tank is the container of filling and compensation liquid in the cooling system, and the liquid to system loss in participating in process of cooling compensates, and to the gas that produces in the system, discharges through pressure relief opening, makes system pressure keep stable; Working environment requires: temperature :-40 ~ 100 ℃, and pressure: 2.5bar.
Vestolen PP 7052 is present automobile component a kind of plastic materials commonly used, and it is abundant that it has the source, low price; Handling ease, characteristics such as mechanical property is good, and density is little; But it is low that it has low temperature impact strength equally, high temperature and creep resistance ability, deficiencies such as heat seal welding property difference and material poor transparency; Can't satisfy expansion tank production and request for utilization, must carry out modification, improve its over-all properties it.
Summary of the invention
To the above-mentioned defective that exists in the prior art; The invention provides a kind of new automobile expansion tank and use polypropylene modified material; It has higher low temperature impact strength; Higher high temperature and creep resistance ability has good hot plate welding property and good transparency simultaneously, can satisfy expansion tank process for processing and request for utilization.
The technical scheme that the present invention adopted is: a kind of automobile expansion tank is used polypropylene modified material; Its component by following weight percentage constitutes: propylene-ethylene block copolymerization polypropylene 75-85%; LLDPE (LLDPE) 10-20%; Terpolymer EP rubber (EPDM) 2-5%, nucleator 0.1-0.5%, oxidation inhibitor 0.1-0.5%.
Adopt the propylene-ethylene block copolymerization polypropylene among the present invention, compare with common HOPP, it had both had higher high-temperature resistant and creep-resistant performance, and low-temperature impact-resistant intensity also increases simultaneously.The LLDPE that adds has improved polyacrylic toughness, can improve the low temperature impact strength of material greatly.The adding of EPDM has further improved the toughness of material, and the consistency of components such as PP and LLDPE is increased, and the hot plate welding property of material is improved.Nucleator can change polyacrylic crystal property, improves the transparency, shock strength, the heat-drawn wire of material, shortens the forming process cycle.Oxidation inhibitor can effectively be eliminated the polymkeric substance active radical that chemical bond rupture produces under the effect of heat, light, oxygen, thereby avoids causing a series of free chain reaction, causes the structure and the character generation fundamental change of polymkeric substance.
Nucleator among the present invention adopts the glucitols nucleator.The performance on the polyacrylic crystal property of change of glucitols nucleator is more outstanding, and it can improve rigidity, shock strength and the transparency of material greatly.
Oxidation inhibitor among the present invention adopts Hinered phenols antioxidant, and it has good antioxidant property.
The automobile expansion tank with the preparation method of polypropylene modified material is: with weight percentage is that the propylene-ethylene block copolymerization polypropylene of 75-85%, LLDPE (LLDPE) that weight percentage is 10-20%, the terpolymer EP rubber (EPDM) that weight percentage is 2-5%, the nucleator that weight percentage is 0.1-0.5%, the oxidation inhibitor that weight percentage is 0.1-0.5% add the high pot uniform mixing that mixes in proportion; Use the twin screw extruder extruding pelletization then; The working temperature of twin screw extruder is 210-240 ℃, and screw speed is 210-240 rev/min.
Described nucleator is the glucitols nucleator.
Described oxidation inhibitor is Hinered phenols antioxidant.
The invention has the beneficial effects as follows: the present invention carries out modification through adopting rational component and mixed ratio to Vestolen PP 7052; Make material have higher low temperature impact strength; Higher high temperature and creep resistance ability has improved the hot plate welding property of material simultaneously, has improved the material transparency.Experiment showed, that the present invention can satisfy expansion water tank for automobile process for processing and request for utilization fully.
Embodiment
Embodiment through indefiniteness is further described the present invention below, and percentage ratio used among the present invention is weight percentage:
Embodiment 1
Batching: propylene-ethylene block copolymerization polypropylene 75%, LLDPE (LLDPE) 20%, terpolymer EP rubber (EPDM) 4.4%, glucitols nucleator 0.3%, Hinered phenols antioxidant 0.3%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
Embodiment 2
Batching: propylene-ethylene block copolymerization polypropylene 80%, LLDPE (LLDPE) 14.5%, terpolymer EP rubber (EPDM) 5%, glucitols nucleator 0.2%, Hinered phenols antioxidant 0.3%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
Embodiment 3
Batching: propylene-ethylene block copolymerization polypropylene 85%, LLDPE (LLDPE) 10%, terpolymer EP rubber (EPDM) 4%, glucitols nucleator 0.5%, Hinered phenols antioxidant 0.5%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
Embodiment 4
Batching: propylene-ethylene block copolymerization polypropylene 82%, LLDPE (LLDPE) 15.5%, terpolymer EP rubber (EPDM) 2%, glucitols nucleator 0.3%, Hinered phenols antioxidant 0.2%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
Embodiment 5
Batching: propylene-ethylene block copolymerization polypropylene 78%, LLDPE (LLDPE) 18.6%, terpolymer EP rubber (EPDM) 3%, glucitols nucleator 0.2%, Hinered phenols antioxidant 0.2%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
Embodiment 6
Batching: propylene-ethylene block copolymerization polypropylene 83%, LLDPE (LLDPE) 12.8%, terpolymer EP rubber (EPDM) 4%, glucitols nucleator 0.1%, Hinered phenols antioxidant 0.1%.
Preparation: above-mentioned raw materials is added the high pot uniform mixing that mixes in proportion, is that 210-240 ℃, screw speed are under 210-240 rev/min the condition in processing temperature then, uses the twin screw extruder extruding pelletization.
Other parts of present embodiment adopt prior art, repeat no more at this.
The automobile expansion tank that obtains in the present embodiment has good performance with polypropylene modified material, and its performance is as shown in table 1.
The foregoing description only is used for that the present invention will be described, is not the restriction that it is carried out, and those skilled in the art also can make change on this basis.For example: the nucleator among the present invention can also be SKC-Y3988, NC-4, and oxidation inhibitor also can be antioxidant 1010, oxidation inhibitor 1098.
Table 1
Figure BDA0000195635002

Claims (6)

1. an automobile expansion tank is used polypropylene modified material; It is characterized in that: its component by following weight percentage constitutes: propylene-ethylene block copolymerization polypropylene 75-85%; LLDPE (LLDPE) 10-20%; Terpolymer EP rubber (EPDM) 2-5%, nucleator 0.1-0.5%, oxidation inhibitor 0.1-0.5%.
2. automobile expansion tank according to claim 1 is used polypropylene modified material, it is characterized in that: said nucleator is the glucitols nucleator.
3. automobile expansion tank according to claim 1 and 2 is used polypropylene modified material, it is characterized in that: said oxidation inhibitor is Hinered phenols antioxidant.
4. an automobile expansion tank is with the preparation method of polypropylene modified material; It is characterized in that: with weight percentage is that the propylene-ethylene block copolymerization polypropylene of 75-85%, LLDPE (LLDPE) that weight percentage is 10-20%, the terpolymer EP rubber (EPDM) that weight percentage is 2-5%, the nucleator that weight percentage is 0.1-0.5%, the oxidation inhibitor that weight percentage is 0.1-0.5% add the high pot uniform mixing that mixes in proportion; Use the twin screw extruder extruding pelletization then; The working temperature of twin screw extruder is 210-240 ℃, and screw speed is 210-240 rev/min.
5. automobile expansion tank according to claim 4 is characterized in that with the preparation method of polypropylene modified material: said nucleator is the glucitols nucleator.
According to claim 4 or 5 described automobile expansion tanks with the preparation method of polypropylene modified material, it is characterized in that: said oxidation inhibitor is Hinered phenols antioxidant.
CN2012102681751A 2012-07-31 2012-07-31 Polypropylene modified material for expansion water tank of automobile and preparation method thereof Pending CN102775718A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103589059A (en) * 2013-10-28 2014-02-19 江苏达胜热缩材料有限公司 Radiation crosslinking polypropylene heat shrinkable belt base material
CN103665552A (en) * 2013-12-03 2014-03-26 芜湖长鹏汽车零部件有限公司 Polypropylene material for automobile interior trim parts and preparation method thereof
CN103980611A (en) * 2014-05-12 2014-08-13 惠州市沃特新材料有限公司 Polypropylene composition for automobile expansion tank and preparation method thereof
WO2017206044A1 (en) * 2016-05-31 2017-12-07 Dow Global Technologies Llc Thermoplastic polyolefin blends having improved low temperature impact performance
CN114773734A (en) * 2022-03-30 2022-07-22 上海升广科技有限公司 Cold-resistant high-toughness copolymerized polypropylene plastic and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN101555333A (en) * 2008-04-10 2009-10-14 中山赛特工程塑料有限公司 Acrylic resin with high toughness
CN102304252A (en) * 2011-04-26 2012-01-04 深圳市科聚新材料有限公司 Thermoplastic polyolefin elastomer, and preparation method and application thereof
CN102492225A (en) * 2011-11-29 2012-06-13 南京鸿瑞塑料制品有限公司 Transparent cold resistance high melt-strength polypropylene material used for automobile expansion water tank and its preparation method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555333A (en) * 2008-04-10 2009-10-14 中山赛特工程塑料有限公司 Acrylic resin with high toughness
CN102304252A (en) * 2011-04-26 2012-01-04 深圳市科聚新材料有限公司 Thermoplastic polyolefin elastomer, and preparation method and application thereof
CN102492225A (en) * 2011-11-29 2012-06-13 南京鸿瑞塑料制品有限公司 Transparent cold resistance high melt-strength polypropylene material used for automobile expansion water tank and its preparation method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103589059A (en) * 2013-10-28 2014-02-19 江苏达胜热缩材料有限公司 Radiation crosslinking polypropylene heat shrinkable belt base material
CN103665552A (en) * 2013-12-03 2014-03-26 芜湖长鹏汽车零部件有限公司 Polypropylene material for automobile interior trim parts and preparation method thereof
CN103980611A (en) * 2014-05-12 2014-08-13 惠州市沃特新材料有限公司 Polypropylene composition for automobile expansion tank and preparation method thereof
WO2017206044A1 (en) * 2016-05-31 2017-12-07 Dow Global Technologies Llc Thermoplastic polyolefin blends having improved low temperature impact performance
CN109844010A (en) * 2016-05-31 2019-06-04 陶氏环球技术有限责任公司 Thermoplastic polyolefin blend with improved low temperature impact properties
US10875992B2 (en) 2016-05-31 2020-12-29 Dow Global Technologies Llc Thermoplastic polyolefin blends having improved low temperature impact performance
CN109844010B (en) * 2016-05-31 2021-12-07 陶氏环球技术有限责任公司 Thermoplastic polyolefin blends with improved low temperature impact properties
CN114773734A (en) * 2022-03-30 2022-07-22 上海升广科技有限公司 Cold-resistant high-toughness copolymerized polypropylene plastic and preparation method thereof

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Application publication date: 20121114