CN104292623A - Automobile water tank fabric and preparation method thereof - Google Patents
Automobile water tank fabric and preparation method thereof Download PDFInfo
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- CN104292623A CN104292623A CN201410501068.8A CN201410501068A CN104292623A CN 104292623 A CN104292623 A CN 104292623A CN 201410501068 A CN201410501068 A CN 201410501068A CN 104292623 A CN104292623 A CN 104292623A
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- 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
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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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an automobile water tank fabric and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing PP (Propene Polymer), maleic anhydride, hydrogenated styrene, EPR (Ethylene Propylene Rubber), butadiene, HDPE (High-Density Polyethylene), a cross-linking agent, LDPE (Low-Density Polyethylene), POE, zinc oxide, an antioxidant, lead stearate, talcum powder, barium stearate and styrene, performing extrusion and pulling pelleting, and performing mold pressing, thereby obtaining the automobile water tank fabric, wherein the tensile strength of the fabric is 35-55MPa, the impact strength of the fabric is 1300-1500J/m, the bending strength of the fabric is 45-65MPa, the bending modulus of the fabric is 3300-3700MPa, the thermal deformation temperature of the fabric is 120-130 DEG C, and the cold endurance of the fabric is as follows: no crack is generated when the fabric is folded at minus 30 DEG C, and the Rockwell hardness of the fabric is 60-70.
Description
Technical field
The application belongs to water tank fabric preparation technology field, particularly relates to a kind of radiator fabric and preparation method thereof.
Background technology
Water tank and scatterer, the cooling of recirculated water is responsible for by water tank (scatterer), and in order to avoid engine overheat, the component (cylinder sleeve, cylinder cap, valve etc.) around combustion chamber must carry out suitable cooling.Cooling device for automobile engine, based on water cooling, with the circulating water in cylinder water channel, introduces water tank (scatterer), by turning back in water channel after air cooling the water be heated in water channel again.Water tank (scatterer) doubles as water storage and thermolysis.Water pipe and the multiplex aluminium of radiator element of water tank (scatterer) are made, and flat pattern made by aluminum water pipe, fin strip corrugated, and focus on heat dispersion, installation direction, perpendicular to the direction of air flowing, accomplishes that windage is little as far as possible, and cooling efficiency wants high.Automobile radiators is indispensable vitals in automobile water-cooling engine-cooling system, just towards light-duty, efficient, economic future development.Automobile radiators structure also constantly adapts to new development.The structure formation of modal automobile radiators can be divided into once-through type and cross-flow type two class.The structure formation of radiator core mainly contains pipe type and the large class of corrugated tube type two.Fin and tube core portion is made up of many thin cooling tubes and radiator element, and cooling tube adopts oblate cross-sectional mostly, to reduce atmospheric drag, increases heat transfer area.Radiator core should have enough flow areas, allows cooling fluid pass through, and also should possess enough air through-flow areas simultaneously, allows enough air pass through to take away the heat that cooling fluid passes to scatterer.Also must have enough area of dissipations simultaneously, come cooling fluid, thermal exchange between air and radiator element.Pipe rock radiator is alternately through being welded by corrugated fin and cooling tube.Compared with gilled tube radiator, under identical condition, area of dissipation can increase about 12% to pipe rock radiator, in addition heat-radiation belt has the hole of the similar window shutter of rough air, to destroy the adhesion layer of fluidizing air on heat-radiation belt surface, improve heat-sinking capability.In order to avoid engine overheat, the component (cylinder sleeve, cylinder cap, valve etc.) around combustion chamber must carry out suitable cooling.In order to ensure cooling performance, automobile cooling system is generally made up of scatterer, thermostat, water pump, cylinder block passage, cylinder cap water channel, fan etc.The cooling of recirculated water is responsible for by scatterer, and its water pipe and the multiplex aluminium of radiator element are made, and flat pattern made by aluminum water pipe, fin strip corrugated, focus on heat dispersion, installation direction is perpendicular to the direction of air flowing, accomplish that windage is little, cooling efficiency wants high as far as possible.Cooling fluid flows in radiator core, and air passes through outside radiator core.The cooling fluid of heat is owing to turning cold to air heat radiation, and freezing air then heats up, so scatterer is a heat exchanger because absorbing the heat that sheds of cooling fluid.
Scatterer belongs to automobile cooling system, and the scatterer in engine water-cooling system for water is made up of three parts such as intake chamber, water-supplying chamber, main leaf and radiator cores.Scatterer cooling has arrived the cooling fluid of high temperature.When the pipe of scatterer and radiator element are exposed in air-flow that cooling fan produces and the air-flow that vehicle movement produces, the cooling fluid in scatterer turns cold.Scatterer can be divided into longitudinal-flow and cross-flow type two kinds according to the direction of coolant flow in scatterer.The structure formation of radiator core mainly contains pipe type and the large class of corrugated tube type two.Automobile radiators mainly has two kinds: aluminium matter and copper, and the former is for general passenger car, and the latter is used for Heavy Duty Commercial Car.Vehicle radiator material and Manufacturing Technology Development are very fast.Aluminium radiator is with its clear superiority on material lightweight, while car and Light-duty Vehicle field progressively replace copper radiator, copper radiator manufacturing technology and technique have had significant progress, and Cu-Ag deposits scatterer is with the obvious advantage in the engine radiators such as passenger vehicle, engineering machinery, heavy truck.The supporting scatterer of Foreign Car mostly is aluminium radiator, mainly considers (especially American-European countries) from the angle of protection of the environment.In the car that Europe is novel, the ratio average out to 64% that aluminium radiator occupies.From the development prospect that China's automobile radiators is produced, the aluminium radiator that brazing is produced increases gradually.Brazing copper radiator is also applied on motorbus, cargo vehicle and Other Engineering equipment.Water tank is the vitals of water-cooled engine, as important composition parts of water-cooled engine heat-radiation loop, the heat of cylinder body can be absorbed, prevent engine overheat due to specific heat of water hold larger, after absorbing the heat of cylinder body, temperature raises not is a lot, so the heat of engine is by this fluid loop of water coolant, utilizes water as thermophore heat by conduction, dispelled the heat in the mode of convection current by large-area radiator element again, to maintain the desired operating temperatures of engine.When the water temperature of engine is high time, water pump pump water iterative cycles reduces the temperature of engine whereby, and (formation that water tank is is copper pipe hollow one by one.High-temperature water enters water tank and is recycled to Engine Cylinder Wall again through air-cooled) reach the object protecting engine, if winter, water temperature was too low, the circulation of water will be stopped this time, avoid engine temperature too low.
Scatterer is covered with a pressure valve, and it pressurizes to cooling fluid.Coolant temperature under pressure rises to more than 100 DEG C, and this makes the difference of coolant temperature and air themperature larger.Cooling performance can be improved like this.When scatterer pressure increases, pressure valve is opened, and sends cooling fluid back to container for storing liquid mouth, and when scatterer decompress(ion), vacuum valve is opened, and makes container for storing liquid release cooling fluid.During increasing pressure, pressure increase (high temperature) decompression, pressure drop (cooling).Radiator, also known as scatterer, is critical part in automobile cooling system; Its function is distribute heat, and water coolant absorbs heat in water jacket, is left by heat after flowing to scatterer, returns circulation in water jacket continuous.Thus reach the effect of heat radiation temperature adjustment.It or the important component part of motor car engine.Radiator, also known as automobile radiators, is critical part in automobile cooling system; Its function is distribute heat, and water coolant absorbs heat in water jacket, is left by heat after flowing to heat transmission gas, returns circulation in water jacket continuous.Thus reach the effect of heat radiation temperature adjustment.It or the important component part of motor car engine.Radiator and accessory radiator are mainly formed by combining by radiator centre, water pipe, heat radiation air blades, upper water box and lower header.Upper water box on a heat sink, by water pipe, upper water box is connected with the water tank below scatterer, hot water becomes warm water when from top to bottom flowing to lower header, heat radiation air blades then forms duct, the relative wind speed advanced when travelling by suction and the car of fan, make a large amount of freezing airs through air channels, will the heat absorption of water coolant in water pipe be flowed through, then diverge in air.The function of cooling system is by heat unnecessary and useless in engine, distributes from engine, makes engine all can keep operating at a normal temperature under various speed or travel conditions.Water tank is the heat exchanger of water cooling type engine, in the mode of convection of air cooling, maintains engine normal working temperature.Once the engine cooling water in water tank because of high-boiling and vaporized expanding, when pressure exceedes set(ting)value, overflows pressure release by tank lid (A), causes water coolant to reduce and prevent cooling system pipelines from bursting.Whether the engine cooling water thermometer pointer that driving at ordinary times should care for appearances on plate is normal.Other cause engine cooling water temperature rise or cooling system pipeline leakage that water coolant also may be caused to reduce as engine fault of cooling fan, and whether amount and the cycle that please notice water coolant minimizing before adding distilled water be normal.
Chinese patent CN 103571066A discloses a kind of long glass fiber Reinforced Polypropylene radiator support, by atactic copolymerized polypropene 65-68 part, homo-polypropylene 3-5 part, long glass fibres 19-21 part, compatilizer 5-6 part and additive 4-5 part.Long glass fiber Reinforced Polypropylene radiator support preparation method of the present invention is simple, over-all properties is superior, there is excellent shock resistance, high-modulus, high strength, and the present invention has the thermal expansivity close with metal, isotropy, lower shrinkage, low compacted property, wear-resisting, the resistance to fatigue of high-dimensional stability and excellence and chemical resistant properties, but tensile strength is low and heat-drawn wire is low; Chinese patent CN 103709515A discloses a kind of radiator transparent PP material and preparation method thereof, adopts homopolymerization PP 20-40, the first copolymerization PP20-50, the second copolymerization PP10-20, thermoplastic elastomer 8-25, polarity modifier 2-8, oxidation inhibitor 0.1-0.3; Its preparation method comprises mixing, extrudes, granulation step; Material property provided by the invention can reach service requirements, and material cost is lower, but flexural strength and shock strength low.And universal along with humanity concept, and the formation of novel harmonious society, designs that a kind of tensile strength is high, flexural strength is high, modulus in flexure is high and radiator fabric that shock strength is high and preparation method thereof is very important.
Summary of the invention
the technical problem solved:
The application, for above-mentioned technical problem, provides a kind of radiator fabric and preparation method thereof, solves the technical problems such as existing radiator fabric tensile strength, flexural strength, modulus in flexure and shock strength are low.
technical scheme:
A kind of radiator fabric, the raw materials by weight portion proportioning of described radiator fabric is as follows: PP100 part; Maleic anhydride 40-60 part; Hydrogenated styrene 1-10 part; EPR30-70 part; Divinyl 1-3 part; HDPE45-65 part; Linking agent 5-25 part; LDPE35-45 part; POE20-40 part; Zinc oxide is 2-8 part; Oxidation inhibitor 20-40 part; Lead stearate is 0.5-2.5 part; Talcum powder 30-50 part; Barium stearate 1.5-5.5 part; Vinylbenzene is 35-55 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described radiator fabric is as follows: PP100 part; Maleic anhydride 45-55 part; Hydrogenated styrene 3-8 part; EPR40-60 part; Divinyl 1.5-2.5 part; HDPE50-60 part; Linking agent 10-20 part; LDPE38-42 part; POE25-35 part; Zinc oxide is 4-6 part; Oxidation inhibitor 25-35 part; Lead stearate is 1-2 part; Talcum powder 35-45 part; Barium stearate 2.5-4.5 part; Vinylbenzene is 40-50 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described radiator fabric is as follows: PP100 part; Maleic anhydride 50 parts; Hydrogenated styrene 5 parts; EPR50 part; Divinyl 2 parts; HDPE55 part; Linking agent 15 parts; LDPE40 part; POE30 part; Zinc oxide is 5 parts; 30 parts, oxidation inhibitor; Lead stearate is 1.5 parts; Talcum powder 40 parts; Barium stearate 3.5 parts; Vinylbenzene is 45 parts.
As a preferred technical solution of the present invention: described linking agent adopts terpolycyantoamino-formaldehyde resin or 2,5-dimethyl-2,5-bis-(tert-butyl hydroperoxide) hexane.
As a preferred technical solution of the present invention: described oxidation inhibitor adopts CA oxidation inhibitor or anti-oxidant DLTP.
As a preferred technical solution of the present invention: the preparation method of described radiator fabric, comprises the steps:
The first step: take PP, maleic anhydride, hydrogenated styrene, EPR, divinyl, HDPE, linking agent, LDPE, POE, zinc oxide, oxidation inhibitor, lead stearate, talcum powder, barium stearate and vinylbenzene according to parts by weight proportioning;
Second step: PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and is heated to 50-70 DEG C, stir 20-40min, then add surplus stock, be warming up to 80-100 DEG C, stir 30-50min;
3rd step: mixed material is dropped in forcing machine and extrudes, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 200-220 DEG C;
4th step: compression molding under 4-5MPa.
As a preferred technical solution of the present invention: the stirring velocity in described second step is 300-400 rev/min.
As a preferred technical solution of the present invention: in described 3rd step, forcing machine is single screw extrusion machine.
beneficial effect:
A kind of radiator fabric of the present invention and preparation method thereof adopts above technical scheme compared with prior art, has following technique effect: 1, product tensile strength 35-55MPa, shock strength 1300-1500J/m; 2, flexural strength 45-65MPa, modulus in flexure 3300-3700MPa; 3, heat-drawn wire 120-130 DEG C, winter hardiness-30 DEG C of doubling flawlesses; 4, Rockwell hardness 60-70, the widespread production not division of history into periods can replace current material.
Embodiment
embodiment 1:
PP100 part is taken according to parts by weight proportioning; Maleic anhydride 40 parts; Hydrogenated styrene 1 part; EPR30 part; Divinyl 1 part; HDPE45 part; 2,5-dimethyl-2,5-bis-(tert-butyl hydroperoxide) hexane 5 parts; LDPE35 part; POE20 part; Zinc oxide is 2 parts; Anti-oxidant DLTP 20 parts; Lead stearate is 0.5 part; Talcum powder 30 parts; Barium stearate 1.5 parts; Vinylbenzene is 35 parts.
PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and be heated to 50 DEG C, stir 20min, stirring velocity is 300 revs/min, then adds surplus stock, is warming up to 80 DEG C, and stir 30min, stirring velocity is 300 revs/min.
Dropped in single screw extrusion machine mixed material and extrude, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 200 DEG C, under 4MPa, mold pressing 10min is shaping.
Tensile strength 35MPa, shock strength 1300J/m; Flexural strength 45MPa, modulus in flexure 3300MPa; Heat-drawn wire 120 DEG C, winter hardiness-30 DEG C of doubling flawlesses, Rockwell hardness 60.
embodiment 2:
PP100 part is taken according to parts by weight proportioning; Maleic anhydride 60 parts; Hydrogenated styrene 10 parts; EPR70 part; Divinyl 3 parts; HDPE65 part; 2,5-dimethyl-2,5-bis-(tert-butyl hydroperoxide) hexane 25 parts; LDPE45 part; POE40 part; Zinc oxide is 8 parts; Anti-oxidant DLTP 40 parts; Lead stearate is 2.5 parts; Talcum powder 50 parts; Barium stearate 5.5 parts; Vinylbenzene is 55 parts.
PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and be heated to 70 DEG C, stir 40min, stirring velocity is 400 revs/min, then adds surplus stock, is warming up to 100 DEG C, and stir 50min, stirring velocity is 400 revs/min.
Dropped in single screw extrusion machine mixed material and extrude, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 220 DEG C, under 5MPa, mold pressing 30min is shaping.
Tensile strength 40MPa, shock strength 1350J/m; Flexural strength 50MPa, modulus in flexure 3400MPa; Heat-drawn wire 122 DEG C, winter hardiness-30 DEG C of doubling flawlesses, Rockwell hardness 63.
embodiment 3:
PP100 part is taken according to parts by weight proportioning; Maleic anhydride 45 parts; Hydrogenated styrene 3 parts; EPR40 part; Divinyl 1.5 parts; HDPE50 part; Terpolycyantoamino-formaldehyde resin 10 parts; LDPE38 part; POE25 part; Zinc oxide is 4 parts; Anti-oxidant DLTP 25 parts; Lead stearate is 1 part; Talcum powder 35 parts; Barium stearate 2.5 parts; Vinylbenzene is 40 parts.
PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and be heated to 50 DEG C, stir 20min, stirring velocity is 300 revs/min, then adds surplus stock, is warming up to 80 DEG C, and stir 30min, stirring velocity is 300 revs/min.
Dropped in single screw extrusion machine mixed material and extrude, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 200 DEG C, under 4MPa, mold pressing 10min is shaping.
Tensile strength 45MPa, shock strength 1400J/m; Flexural strength 55MPa, modulus in flexure 3500MPa; Heat-drawn wire 125 DEG C, winter hardiness-30 DEG C of doubling flawlesses, Rockwell hardness 65.
embodiment 4:
PP100 part is taken according to parts by weight proportioning; Maleic anhydride 55 parts; Hydrogenated styrene 8 parts; EPR60 part; Divinyl 2.5 parts; HDPE60 part; Terpolycyantoamino-formaldehyde resin 20 parts; LDPE42 part; POE35 part; Zinc oxide is 6 parts; 35 parts, CA oxidation inhibitor; Lead stearate is 2 parts; Talcum powder 45 parts; Barium stearate 4.5 parts; Vinylbenzene is 50 parts.
PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and be heated to 65 DEG C, stir 35min, stirring velocity is 380 revs/min, then adds surplus stock, is warming up to 95 DEG C, and stir 45min, stirring velocity is 380 revs/min.
Dropped in single screw extrusion machine mixed material and extrude, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 215 DEG C, under 5MPa, mold pressing 25min is shaping.
Tensile strength 50MPa, shock strength 1450J/m; Flexural strength 60MPa, modulus in flexure 3600MPa; Heat-drawn wire 128 DEG C, winter hardiness-30 DEG C of doubling flawlesses, Rockwell hardness 66.
embodiment 5:
PP100 part is taken according to parts by weight proportioning; Maleic anhydride 50 parts; Hydrogenated styrene 5 parts; EPR50 part; Divinyl 2 parts; HDPE55 part; Terpolycyantoamino-formaldehyde resin 15 parts; LDPE40 part; POE30 part; Zinc oxide is 5 parts; 30 parts, CA oxidation inhibitor; Lead stearate is 1.5 parts; Talcum powder 40 parts; Barium stearate 3.5 parts; Vinylbenzene is 45 parts.
PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and be heated to 60 DEG C, stir 30min, stirring velocity is 350 revs/min, then adds surplus stock, is warming up to 90 DEG C, and stir 40min, stirring velocity is 350 revs/min.
Dropped in single screw extrusion machine mixed material and extrude, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 210 DEG C, under 4.5MPa, mold pressing 20min is shaping.
Tensile strength 55MPa, shock strength 1500J/m; Flexural strength 65MPa, modulus in flexure 3700MPa; Heat-drawn wire 130 DEG C, winter hardiness-30 DEG C of doubling flawlesses, Rockwell hardness 70.
Composition all components in above embodiment all can business be bought.
Above-described embodiment is just for setting forth content of the present invention, instead of restriction, and any change therefore in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (8)
1. a radiator fabric, is characterized in that the raw materials by weight portion proportioning of described radiator fabric is as follows: PP100 part; Maleic anhydride 40-60 part; Hydrogenated styrene 1-10 part; EPR30-70 part; Divinyl 1-3 part; HDPE45-65 part; Linking agent 5-25 part; LDPE35-45 part; POE20-40 part; Zinc oxide is 2-8 part; Oxidation inhibitor 20-40 part; Lead stearate is 0.5-2.5 part; Talcum powder 30-50 part; Barium stearate 1.5-5.5 part; Vinylbenzene is 35-55 part.
2. a kind of radiator fabric according to claim 1, proportioning is as follows by weight: PP100 part to it is characterized in that described radiator raw material of fabric; Maleic anhydride 45-55 part; Hydrogenated styrene 3-8 part; EPR40-60 part; Divinyl 1.5-2.5 part; HDPE50-60 part; Linking agent 10-20 part; LDPE38-42 part; POE25-35 part; Zinc oxide is 4-6 part; Oxidation inhibitor 25-35 part; Lead stearate is 1-2 part; Talcum powder 35-45 part; Barium stearate 2.5-4.5 part; Vinylbenzene is 40-50 part.
3. a kind of radiator fabric according to claim 1, is characterized in that the raw materials by weight portion proportioning of described radiator fabric is as follows: PP100 part; Maleic anhydride 50 parts; Hydrogenated styrene 5 parts; EPR50 part; Divinyl 2 parts; HDPE55 part; Linking agent 15 parts; LDPE40 part; POE30 part; Zinc oxide is 5 parts; 30 parts, oxidation inhibitor; Lead stearate is 1.5 parts; Talcum powder 40 parts; Barium stearate 3.5 parts; Vinylbenzene is 45 parts.
4. a kind of radiator fabric according to claim 1, is characterized in that: described linking agent adopts terpolycyantoamino-formaldehyde resin or 2,5-dimethyl-2,5-bis-(tert-butyl hydroperoxide) hexane.
5. a kind of radiator fabric according to claim 1, is characterized in that: described oxidation inhibitor adopts CA oxidation inhibitor or anti-oxidant DLTP.
6. a preparation method for radiator fabric described in claim 1, is characterized in that, comprise the steps:
The first step: take PP, maleic anhydride, hydrogenated styrene, EPR, divinyl, HDPE, linking agent, LDPE, POE, zinc oxide, oxidation inhibitor, lead stearate, talcum powder, barium stearate and vinylbenzene according to parts by weight proportioning;
Second step: PP, maleic anhydride, hydrogenated styrene, EPR and divinyl are dropped in reactor and is heated to 50-70 DEG C, stir 20-40min, then add surplus stock, be warming up to 80-100 DEG C, stir 30-50min;
3rd step: mixed material is dropped in forcing machine and extrudes, barrel temperature 185 DEG C, 190 DEG C, 205 DEG C, 210 DEG C, 220 DEG C, 235 DEG C and 240 DEG C, head temperature 200-220 DEG C;
4th step: compression molding under 4-5MPa.
7. the preparation method of radiator fabric according to claim 6, is characterized in that: the stirring velocity in described second step is 300-400 rev/min.
8. the preparation method of radiator fabric according to claim 6, is characterized in that: in described 3rd step, forcing machine is single screw extrusion machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410501068.8A CN104292623A (en) | 2014-09-26 | 2014-09-26 | Automobile water tank fabric and preparation method thereof |
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| CN201410501068.8A CN104292623A (en) | 2014-09-26 | 2014-09-26 | Automobile water tank fabric and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629459A (en) * | 2017-09-06 | 2018-01-26 | 安徽铖友汽车零部件制造有限公司 | A kind of radiator shell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070417A (en) * | 2007-06-21 | 2007-11-14 | 杨育农 | Polypropylene composite material |
| CN103044775A (en) * | 2012-12-26 | 2013-04-17 | 江苏金发科技新材料有限公司 | Glass fiber reinforced polypropylene composite material for car radiator grid and preparation process thereof |
-
2014
- 2014-09-26 CN CN201410501068.8A patent/CN104292623A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070417A (en) * | 2007-06-21 | 2007-11-14 | 杨育农 | Polypropylene composite material |
| CN103044775A (en) * | 2012-12-26 | 2013-04-17 | 江苏金发科技新材料有限公司 | Glass fiber reinforced polypropylene composite material for car radiator grid and preparation process thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629459A (en) * | 2017-09-06 | 2018-01-26 | 安徽铖友汽车零部件制造有限公司 | A kind of radiator shell |
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Application publication date: 20150121 |