CN101508810A - High-ductility polypropylene composite material for producing base plate of air conditioner and method for producing the same - Google Patents

High-ductility polypropylene composite material for producing base plate of air conditioner and method for producing the same Download PDF

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Publication number
CN101508810A
CN101508810A CNA2008102413268A CN200810241326A CN101508810A CN 101508810 A CN101508810 A CN 101508810A CN A2008102413268 A CNA2008102413268 A CN A2008102413268A CN 200810241326 A CN200810241326 A CN 200810241326A CN 101508810 A CN101508810 A CN 101508810A
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China
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district
composite material
resin
air conditioner
base plate
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徐东
贺永
杨书涛
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Polymer Science Shenzhen New Materials Co Ltd
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Polymer Science Shenzhen New Materials Co Ltd
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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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
    • B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
    • 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
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/92866—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
    • 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 high tenacity polypropylene composite material used for manufacturing the base of an air-conditioner and a preparation method thereof. The high tenacity polypropylene composite material for the base of air-conditioner consists of the components with the weight proportion as follows: 100 portions of PP resin, 20 to 40 portions of toughening agent, 10 to 20 portions of high polymer compatibilizer, 30 to 50 portions of filling agent and 0.2 to 1.0 portions of antioxidant, wherein the PP resin is a copolymer PP, the toughening agent is POE, the compatibilizer is nanomontmorillonite and the filling agent is talcum powder. The invention greatly increases the tensile strength, flexural strength, flexural modulus, elongation at break rate and notch impact strength of the PP composite material and greatly decreases the shrinkage rate of the PP composite material by adding the toughening agent POE, the compatibilizer nanomontmorillonite and the filling agent, thus preparing a high tenacity polypropylene composite material characterized in high strength, good toughness, small shrinkage rate and stable dimension and suitable for manufacturing air-conditioner bases.

Description

A kind of high-ductility polypropylene composite material of making base plate of air conditioner and preparation method thereof that is used to
[technical field]
The present invention relates to technical field of polymer materials, relate in particular to a kind of high-ductility polypropylene composite material of making base plate of air conditioner and preparation method thereof that can be used for.
[background technology]
Polypropylene (PP) is one of five big general-purpose plastics, and density is 0.90g/cm 3, be that (density is only greater than polymethylpentene, and density is 0.85g/cm for the existing resin second light macromolecular material 3).Performance is good, proportion is little, be easy to characteristics such as forming process because of it has, and is widely used in automotive industry, household electrical appliance, electronic instrument industry, the textile industry.
Yet, because the mechanical property of PP resin is lower, thing is not the tensile strength of copolymerization PP 20MPa, flexural strength 26MPa, the shock strength 150J/M that only has an appointment that only has an appointment that only has an appointment, and makes it at some products that are applied to bear certain load, as base plate of air conditioner, be subjected to restriction to a certain degree.
At present, to adopt the copolymerization PP of high impact-resistant be that matrix adds an amount of talcum powder and carries out modification and form to people's PP matrix material of being used to make base plate of air conditioner more.This MODIFIED PP composite material strength is low, shrink big, poor dimensional stability, after significant disadvantages is injection molded into product exactly buckling deformation serious, need use special calibrator typing, and effect is undesirable.
This just requires to develop a kind of mechanical property that can significantly promote material, has excellent toughness, and dimensional stability is good, is fit to make the high-ductility PP matrix material of base plate of air conditioner.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of good toughness, intensity height, contraction is little, product size stable, can be used for making the high-ductility polypropylene composite material of base plate of air conditioner.The present invention also will provide a kind of method for preparing this kind high-ductility polypropylene composite material.。
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of high-ductility polypropylene composite material that is used to make base plate of air conditioner, and its component and content are by weight:
PP resin 100
Toughner 20--40
High molecular compatible agent 10--20
Weighting agent 30--50
Oxidation inhibitor 0.2--1.0
Wherein, described PP resin is copolymerization PP, and described toughner is POE, and described compatilizer is a nano imvite, and described weighting agent is a talcum powder.
The above-described high-ductility polypropylene composite material that is used to make base plate of air conditioner, described oxidation inhibitor are that phosphite ester kind antioxidant and Hinered phenols antioxidant form by mass ratio 2:1 is composite.
Preparation method's the technical scheme that is used to make the high-ductility polypropylene composite material of base plate of air conditioner may further comprise the steps:
1, takes by weighing PP resin 100 by umber, toughner 20-40, compatilizer 10-20, weighting agent agent 30--50, oxidation inhibitor 0.2--1.0;
2, the composition that step 301 is taken by weighing mixed in high-speed mixer 3--5 minute;
3, mixed raw material is placed the cocurrent and parallel twin screw extruder through melt extrude, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, screw speed 300～350r/min, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
The present invention significantly promotes tensile strength, flexural strength, modulus in flexure, elongation at break rate, the notched Izod impact strength of PP material by adding toughner POE, compatilizer nano imvite, weighting agent; The shrinking percentage of material significantly reduces; Thereby prepare a kind of intensity height, good toughness, shrinking percentage is little and dimensional stabilizing, be fit to make the high tenacious polypropylene material of base plate of air conditioner.
[embodiment]
Below by embodiment the present invention is further set forth:
The high-ductility polypropylene composite material that is used to make base plate of air conditioner that the present invention proposes need be used following starting material: PP resin, toughner, high molecular compatible agent, weighting agent, oxidation inhibitor.
Wherein, the PP resin is copolymerization PP, as the copolymerization PP EPC30R-H of " Maoming petrochemical industry "; Described toughner is polyolefin elastomer POE, as the POE 8150 of " Du Pont "; Compatilizer is a nano imvite, and as the nano imvite of " Nanocor " I.44PA, weighting agent is 2000 order talcum powder, as talcum powder 2000 orders of " sky, Guangzhou Thailand "; Oxidation inhibitor forms by mass ratio 2:1 is composite for the phosphite ester kind antioxidant 168 and the Hinered phenols antioxidant 1010 of " Ciba ".
Embodiment all uses given raw material of the present invention and preparation method; Raw material part in the Comparative Examples also is above-mentioned given raw material.
Embodiment 1
By weight, with PP resin 100, toughner 20, nano imvite 10, weighting agent 30, oxidation inhibitor 0.2, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Embodiment 2
By weight, with PP resin 100, toughner 30, nano imvite 15, weighting agent 40, oxidation inhibitor 0.5, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Embodiment 3
By weight, with PP resin 100, toughner 40, nano imvite 20, weighting agent 50, oxidation inhibitor 1.0, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Performance to prepared material in the embodiment of the invention describes below:
With the particulate material of finishing granulation as stated above under 80-90 ℃ baking oven dry 2 hours in advance, then that drying is good particulate material injected the standard testing batten on injection moulding machine.
Tensile property is undertaken by ASTM D-638, and specimen size is 180 * 12.7 * 3.2 millimeters, and draw speed is 50 millimeters/minute;
Bending property is undertaken by ASTM D-790, and specimen size is 127 * 12.7 * 3.2 millimeters, and rate of bending is 20 millimeters/minute, and span is 50 millimeters;
The socle girder notched Izod impact strength is undertaken by ASTM D-256, and specimen size is 64 * 12.7 * 3.2 millimeters, and notch depth is 1/3 of a sample thickness; Proportion is undertaken by ISO 1183; Shrinking percentage is undertaken by ISO 2577.
The numerical value of tensile strength, the elongation at break of the over-all properties of material by the test gained, flexural strength, modulus in flexure, IZOD notched Izod impact strength, proportion, shrinking percentage is passed judgment on.
The prescription of example 1-3 and every The performance test results see the following form (one):
Table (one) example 1-3 performance formula synopsis
Material name transitivity parameter Example 1 Example 2 Example 3
The PP resin 100 100 100
POE?8150 20 30 40
Nano imvite 10 15 20
Talcum powder 30 40 50
The oxidation inhibitor self-control is composite 0.2 0.5 1.0
Tensile strength (MPa) 22 21 20
Elongation at break (%) 300 350 400
Flexural strength (MPa) 40 39 38
Modulus in flexure (MPa) 2400 2350 2200
IZOD notched Izod impact strength (J/M) 270 280 300
Melting index (g/10 branch) 12 11 11
Proportion (g/cm3) 1.02 1.04 1.05
Shrinking percentage (%) 1.2 1.2 1.2
From the table (one) as can be seen, increase along with toughner POE 8150, compatilizer nano imvite, weighting agent talcum powder, oxidation inhibitor addition, the elongation at break of material significantly increases, notched Izod impact strength has lifting in a small amount, and tensile strength, flexural strength, modulus in flexure, melting index, shrinking percentage are constant substantially; Proportion slightly increases.
Comparative Examples 1
By weight, with PP resin 100, toughner 20, weighting agent 30, oxidation inhibitor 0.2, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed cocurrent and parallel twin screw bar forcing machine through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Comparative Examples 2
By weight, with PP resin 100, toughner 30, weighting agent 40, oxidation inhibitor 0.5, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Comparative Examples 3
By weight, with PP resin 100, toughner 40, weighting agent 50, oxidation inhibitor 1.0, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
The prescription of Comparative Examples 1-3 and every The performance test results see the following form (two):
Table (two) Comparative Examples 1-3 performance formula synopsis
Material name transitivity parameter Comparative Examples 1 Comparative Examples 2 Comparative Examples 3
The PP resin 100 100 100
Toughner 20 30 40
Weighting agent 30 40 50
The oxidation inhibitor self-control is composite 0.2 0.5 1.0
Tensile strength (MPa) 22 21 20
Elongation at break (%) 200 240 260
Flexural strength (MPa) 30 28 28
Modulus in flexure (MPa) 1500 1600 1600
IZOD notched Izod impact strength (J/M) 160 175 180
Melting index (g/10 branch) 10 10 10
Proportion (g/cm3) 1.04 1.05 1.06
Shrinking percentage (%) 1.3 1.2 1.2
As can be seen, along with the increase of toughner POE8150, weighting agent talcum powder, oxidation inhibitor addition, the elongation at break of material significantly increases from table (two); Tensile strength, flexural strength, modulus in flexure, melting index, notched Izod impact strength, shrinking percentage are constant substantially; Proportion slightly increases.
Comparative Examples 4
By weight, with PP resin 100, compatilizer 10, weighting agent 30, oxidation inhibitor 0.2, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed cocurrent and parallel twin screw bar forcing machine through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Comparative Examples 5
By weight, with PP resin 100, compatilizer 15, weighting agent 40, oxidation inhibitor 0.5, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
Comparative Examples 6
By weight, with PP resin 100, compatilizer 20, weighting agent 50, oxidation inhibitor 1.0, mixed 3--5 minute in high-speed mixer, the high-speed mixer rotating speed is 600 rev/mins; Then mixed raw material is placed the cocurrent and parallel twin screw extruder through fusion squeeze, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, 300～350 rev/mins of screw speeds, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
The prescription of Comparative Examples 1-3 and every The performance test results see the following form (three):
Table (three) Comparative Examples 1-3 performance formula synopsis
Material name transitivity parameter Comparative Examples 4 Comparative Examples 5 Comparative Examples 6
The PP resin 100 100 100
The high molecular compatible agent 10 15 20
Weighting agent 30 40 50
The oxidation inhibitor self-control is composite 0.2 0.5 1.0
Tensile strength (MPa) 20 20 21
Elongation at break (%) 100 120 130
Flexural strength (MPa) 28 29 29
Modulus in flexure (MPa) 1600 1650 1700
IZOD notched Izod impact strength (J/M) 120 125 140
Melting index (g/10 branch) 12 12 11
Proportion (g/cm3) 1.04 1.06 1.09
Shrinking percentage (%) 1.2 1.1 1.1
As can be seen, along with the increase of compatilizer, weighting agent talcum powder, oxidation inhibitor addition, the elongation at break of material, notched Izod impact strength, proportion significantly increase from table (three); Tensile strength, flexural strength, modulus in flexure, melting index, shrinking percentage are constant substantially.
Comparative Examples 7: the MODIFIED PP matrix material that is used for base plate of air conditioner at present
Table (four) Comparative Examples 7 prescription and performance synopsis
Material name transitivity parameter Comparative Examples 7
High impact-resistant PP resin 100
Weighting agent 30
Tensile strength (MPa) 18
Elongation at break (%) 50
Flexural strength (MPa) 25
Modulus in flexure (MPa) 1100
IZOD notched Izod impact strength (J/M) 150
Melting index (g/10 branch) 12
Proportion (g/cm3) 1.04
Shrinking percentage (%) 1.5
By showing (one) and showing (two), table (three) more as can be known, no matter be the independent use of toughner or compatilizer, the elongation at break of material, notched Izod impact strength all significantly reduce, though other performances are constant substantially, but do not reach the purpose of high strength, high tenacity, make product to meet the demands.This is that the elongation at break of material, shock strength all have and decline to a great extent owing to carrying out enhanced with talcum powder simultaneously, and single use POE or compatilizer, though can increase the toughness of material, not remarkable, and intensity all declines to a great extent.When POE and high molecular compatible agent are collaborative when carrying out toughening material, make that the phase interface of each component can be combined closely in the material, thereby when improving the strength of materials greatly, improved the fracture of material greatly and stretched rate and shock strength.
The present invention uses POE to do toughner, can improve the toughness of material; Use talcum powder to do weighting agent, significantly improve the intensity of material, reduce shrinking percentage, make the excellent in dimensional stability of product; Use nano imvite to do compatilizer, significantly improved the comixing compatibility between acrylic resin and the talcum powder, keep the toughness of PP material; By adding oxidation inhibitor, make the heatproof oxidation performance of material to be improved, solve material xanthochromia phenomenon.
From showing (one) and showing (four) more as can be known, after adding toughner and compatilizer in the system, the all significantly liftings of intensity, elongation at break, flexural strength, modulus in flexure, notched Izod impact strength are stretched in haling of material, the shrinking percentage of material reduces greatly, and the finished product need not to use special shaping tool to finalize the design, and have improved the dimensional stability of product greatly.
In sum, the present invention significantly promotes tensile strength, flexural strength, modulus in flexure, elongation at break rate, the notched Izod impact strength of PP material by adding toughner POE, compatilizer nano imvite, weighting agent; The shrinking percentage of material significantly reduces; Thereby it is little to prepare a kind of intensity height, good toughness, shrinking percentage, the high tenacious polypropylene material that is used to make base plate of air conditioner of dimensional stabilizing.Simultaneously, provide a kind of and had intensity height, good toughness, shrinking percentage is little and the preparation method of high tenacious polypropylene material who is used to make base plate of air conditioner of dimensional stabilizing.

Claims (3)

1, a kind of high-ductility polypropylene composite material that is used to make base plate of air conditioner is characterized in that, its component and content are by weight:
PP resin 100
Toughner 20--40
High molecular compatible agent 10--20
Weighting agent 30--50
Oxidation inhibitor 0.2--1.0
Wherein, described PP resin is copolymerization PP, and described toughner is POE, and described compatilizer is a nano imvite, and described weighting agent is a talcum powder.
2, the high-ductility polypropylene composite material that is used to make base plate of air conditioner according to claim 1 is characterized in that: described oxidation inhibitor is that phosphite ester kind antioxidant 168 and Hinered phenols antioxidant 1010 are by 2: 1 composite forming of mass ratio.
3, a kind of preparation method who is used to make the high-ductility polypropylene composite material of base plate of air conditioner is characterized in that, may further comprise the steps:
301, take by weighing PP resin 100 by umber, toughner 20-40, compatilizer 10-20, weighting agent agent 30--50, oxidation inhibitor 0.2--1.0;
302, the composition that step 301 is taken by weighing mixed in high-speed mixer 3--5 minute;
303, mixed raw material is placed the cocurrent and parallel twin screw extruder through melt extrude, granulation, its expressing technique is: a district 170--180 ℃, two district 180--190 ℃, three district 180--190 ℃, four district 185--195 ℃, screw speed 300～350r/min, feeding frequency 20～25Hz, melt pressure 3.0～4.0MPa, vacuum tightness-0.02---0.04MPa.
CNA2008102413268A 2008-12-17 2008-12-17 High-ductility polypropylene composite material for producing base plate of air conditioner and method for producing the same Pending CN101508810A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101838423A (en) * 2010-06-10 2010-09-22 南京聚隆科技股份有限公司 Modified polypropylene material for thin-wall bumper and preparation method thereof
CN101921430A (en) * 2010-08-18 2010-12-22 苏州奔腾塑业有限公司 Mineral filled polypropylene with high strength and high impact resistance and preparation method thereof
CN102532694A (en) * 2010-12-23 2012-07-04 上海日之升新技术发展有限公司 Composite material with high melt index and preparation method thereof
CN102827424A (en) * 2012-09-27 2012-12-19 马宁 Polypropylene (PP) elastomer composition with high impact resistance and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101838423A (en) * 2010-06-10 2010-09-22 南京聚隆科技股份有限公司 Modified polypropylene material for thin-wall bumper and preparation method thereof
CN101921430A (en) * 2010-08-18 2010-12-22 苏州奔腾塑业有限公司 Mineral filled polypropylene with high strength and high impact resistance and preparation method thereof
CN102532694A (en) * 2010-12-23 2012-07-04 上海日之升新技术发展有限公司 Composite material with high melt index and preparation method thereof
CN102827424A (en) * 2012-09-27 2012-12-19 马宁 Polypropylene (PP) elastomer composition with high impact resistance and preparation method thereof

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