CN101709124B - Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof - Google Patents

Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof Download PDF

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CN101709124B
CN101709124B CN2009101919351A CN200910191935A CN101709124B CN 101709124 B CN101709124 B CN 101709124B CN 2009101919351 A CN2009101919351 A CN 2009101919351A CN 200910191935 A CN200910191935 A CN 200910191935A CN 101709124 B CN101709124 B CN 101709124B
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temperature
stress whitening
district
weight
parts
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CN101709124A (en
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姚富
姚泽敏
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CHONGQING QILAN PLASTIC Co Ltd
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CHONGQING QILAN PLASTIC 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
    • B29C48/25—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
    • B29C2948/9258—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
    • 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
    • B29C2948/92904—Die; Nozzle zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses an anti-folding stress whitening resistant polypropylene (PP) material and a preparation method thereof. The material is prepared from the following raw materials in part by weight: 55 to 75 parts of co-polypropylene, 5 to 20 parts of POE Lc670, 10 to 30 parts of stress whitening resistant master batch, 0.05 to 0.15 part of white mineral oil, 0.1 to 0.3 part of hindered phenol antioxidant 1010, 0.1 to 0.3 part of phosphite ester antioxidant 1680 and 0.1 to 0.3 part of calcium stearate. The stress whitening resistant master batch comprises the following components in part by weight: 40 to 65 parts of EPDM or EPR or POE, 30 to 50 parts of nano active light CaCO3, and 0.5 to 2 parts of Tissuemat E with low molecular weight. The polypropylene (PP) material is prepared by using a double-screw extruder with 9 temperature control areas according to the specific process conditions. The material has the advantages of good repeated bending resistance and stress whitening resistance, simple preparation process and low preparation cost.

Description

A kind of anti-folding stress whitening resistant polypropylene alkene (PP) material and preparation method thereof
Technical field
The present invention relates to anti-stress whitening engineering plastics, particularly a kind of anti-folding stress whitening resistant polypropylene alkene (PP) material and preparation method thereof.
Background technology
Polypropylene (PP) as one of five large-engineering plastics, having anti-preferably bending performance (being commonly called as white folding glue) has nontoxic, tasteless, density is little, intensity, rigidity, hardness, thermotolerance all is better than advantages such as low pressure polyethylene, it is general thermoplastic resin material, it also possesses good electrical properties, high-frequency insulation and chemical resistance, be not subjected to advantages such as humidity effect, be suitable for making the common mechanical part, corrosion-resistant part and insulating part are widely used in glazing, automotive industry, electronics, electrical equipment industry, the industrial machinery part, CD, packing, office equipments such as computer, medical treatment and health care, film, fields such as leisure and protective equipment.
Along with market competition is fierce day by day, all trades and professions are had higher requirement to the various aspects of performance of polypropylene (PP), plain polypropylene (PP) has been difficult to satisfy industry requirement, but can carry out modification to polypropylene (PP) according to demand, makes it adapt to different demands.Because polypropylene (PP) is when being used to manufacture a product, be subjected to the influence of concentrated stress easily and on product, produce crazing, the crazing expansion absorbs energy and causes product to turn white, and the serious performance and the quality that also can influence product, the problem that the PP material turns white have become the generally acknowledged difficult problem of industry in recent years.
At above-mentioned deficiency, need to explore a kind of polypropylene (PP) material and preparation method that can anti-folding anti-stress whitening, to solve that polypropylene (PP) goods easily stress whitening take place and the problem that influences PP product properties and quality.
Summary of the invention
In view of this, the invention provides a kind of anti-folding stress whitening resistant polypropylene alkene (PP) material and preparation method thereof, thereby the present invention adopts thermoplastic elastomer and homemade anti-stress whitening master batch and high impact-resistant PP to mix to be made the two be dispersed in mutually at microcosmic to make this material possess low-temperature impact and the anti-folding and characteristic of non-whitening in the PP molecule.Use polypropylene (PP) goods of this material and method preparation possess through artificial more than 200 times repeatedly bending and the characteristic of non-whitening and good low-temperature impact property is provided, to change traditional not folding of PP folded and turn white or low temperature uses easy disruptive shortcoming, this product to be widely used in products such as snow machine, folding seat.
Anti-folding stress whitening resistant polypropylene alkene of the present invention (PP) material comprises following raw material by weight:
Figure GSB00000552167200021
Described anti-stress whitening master batch comprises following composition by weight:
EPDM or EPR or POE 40～65
Nano active light caco3 30～50
Low-molecular-weight polyethylene wax 0.5～2.
Further, comprise following raw material by weight:
Figure GSB00000552167200022
Two of purpose of the present invention, the method that is to provide the folded anti-profit of the above-mentioned folding of preparation to turn white polypropylene (PP) material, its method is: even through the high-speed mixer thorough mixing, use forcing machine to produce;
Extrude processing parameter: described forcing machine is the twin screw extruder with 9 sections temperature controlled region, engine speed is 300～400r/min, main feeding is given: 25～50kg/h, 1 district's temperature is 220 ± 10 ℃ in 9 sections temperature controlled region, 2～3 district's temperature are 230 ± 10 ℃, 4～5 district's temperature are 230 ± 10 ℃, and 6～9 district's temperature are 230 ± 10 ℃, and head temperature is 230 ± 10 ℃;
Further, the described processing parameter of extruding is: engine speed is 300r/min, and main feeding is given: 25kg/h, 1 district's temperature is 220 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 230 ℃, and 4～5 district's temperature are 220 ℃, 6～9 district's temperature are 220 ℃, and head temperature is 230 ℃.
The beneficial effect of the invention: anti-folding stress whitening resistant polypropylene alkene of the present invention (PP) material and preparation method thereof, its material comprises following raw material by weight: polypropylene 55～75, POE Lc670 5～20, anti-stress whitening master batch 5～20, white mineral oil 0.05～0.15, Hinered phenols antioxidant 1,010 0.1～0.3, phosphite antioxidant 168 0.1～0.3, calcium stearate 0.1～0.3, twin screw extruder through having 9 temperature controlled region is prepared polypropylene (PP) material according to specific processing condition, this material possesses the anti-stress whitening characteristic of good folding superimposition and gives material good low temperature impact properties, can stand artificial more than 200 times repeatedly the bending and non-whitening, and preparation technology is simple, and preparation cost is low.
Embodiment
Embodiment 1:
Anti-folding stress whitening resistant polypropylene alkene (PP) material of present embodiment is characterized in that: comprise following raw material by weight:
Figure GSB00000552167200031
Figure GSB00000552167200041
The anti-stress whitening master batch of described self-control comprises following composition by weight:
EPDM or EPR or POE 40
Nano level active light caco3 30
Low-molecular-weight polyethylene wax 0.5.
Preparing above-described anti-folding stress whitening resistant polypropylene alkene (PP) preparation methods is: mix through high-speed mixer according to above-described composition and proportion ingredient, use the CTE35 twin screw extruder to produce, this machine has 9 segment standard temperature controlled region;
Extrude processing parameter: engine speed is 300r/min, and main feeding is given: 25kg/h, and 1 district's temperature is 210 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 220 ℃, and 4～5 district's temperature are 230 ℃, and 6～9 district's temperature are 230 ℃, head temperature is 220 ℃.
Prescription and prepared anti-folding stress whitening resistant polypropylene alkene (PP) material property detected result such as the following table 1 of technology through present embodiment:
Figure GSB00000552167200042
Figure GSB00000552167200051
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
Embodiment 2:
Anti-folding stress whitening resistant polypropylene alkene (PP) material of present embodiment is characterized in that: comprise following raw material by weight:
The anti-stress whitening master batch of described self-control comprises following composition by weight:
EPDM or EPR or POE 48
Nano level active light caco3 40
Low-molecular-weight polyethylene wax 1.
Prepare above-described anti-folding stress whitening resistant polypropylene alkene (PP) preparation methods, according to above-described composition and proportion ingredient, use the CTE35 twin screw extruder to produce, this machine has 9 segment standard temperature controlled region;
Extrude processing parameter: engine speed is 300r/min, and main feeding is given: 25kg/h, and 1 district's temperature is 220 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 230 ℃, and 4～5 district's temperature are 220 ℃, and 6～9 district's temperature are 220 ℃, head temperature is 230 ℃.
Prescription and prepared anti-folding stress whitening resistant polypropylene alkene (PP) material property detected result such as the following table 2 of technology through present embodiment:
Figure GSB00000552167200061
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
Embodiment 3:
Anti-folding stress whitening resistant polypropylene alkene (PP) material of present embodiment comprises following raw material by weight:
The anti-stress whitening master batch of described self-control comprises following composition by weight:
EPDM or EPR or POE 65
Nano level active light caco3 50
Low-molecular-weight polyethylene wax 2.
The preparation above-described anti-folding stress whitening resistant polypropylene alkene of right (PP) preparation methods according to above-described composition and proportion ingredient, uses the CTE35 twin screw extruder to produce, and this machine has 9 segment standard temperature controlled region;
Extruding processing parameter is: engine speed is 300r/min, and main feeding is given: 25kg/h, and 1 district's temperature is 230 ℃ in 9 sections temperature controlled region, and 2～3 district's temperature are 240 ℃, and 4～5 district's temperature are 240 ℃, and 6～9 district's temperature are 240 ℃, head temperature is 240 ℃.
Prescription and prepared anti-folding stress whitening resistant polypropylene alkene (PP) material property detected result such as the following table 3 of technology through present embodiment:
Figure GSB00000552167200071
Annotate: reference value is meant the laboratory average data, only is used for reference, not as product standard.
By last table 1,2,3 as can be known, anti-folding stress whitening resistant polypropylene alkene (PP) material of these 3 embodiment all has the characteristic of anti-folding stress whitening resistant, wherein best, its physics of embodiment 2 effects, mechanical property also reach higher, than the equilibrated level.
Explanation is at last, above embodiment is only unrestricted in order to the technical scheme of explanation invention, although invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical scheme of invention, and not breaking away from the aim and the scope of invention technical scheme, it all should be encompassed in the middle of the claim scope of invention.

Claims (4)

1. an anti-folding stress whitening resistant polypropylene alkene (PP) material is characterized in that: comprise following raw material by weight:
Figure FSB00000552167100011
Described anti-stress whitening master batch comprises following composition by weight:
EPDM or EPR or POE 40～65
Nano active light caco3 30～50
Low-molecular-weight polyethylene wax 0.5～2.
2. anti-folding stress whitening resistant polypropylene alkene according to claim 1 (PP) material is characterized in that: comprise following raw material by weight:
Figure FSB00000552167100012
3. prepare the described anti-folding stress whitening resistant polypropylene alkene of claim 1 (PP) preparation methods, it is characterized in that: even according to described composition of claim 1 and proportion ingredient through the high-speed mixer thorough mixing, use forcing machine to produce;
Extrude processing parameter: described forcing machine is the twin screw extruder with 9 sections temperature controlled region, engine speed is 300～400r/min, main feeding is given: 25～50kg/h, 1 district's temperature is 220 ± 10 ℃ in 9 sections temperature controlled region, 2～3 district's temperature are 230 ± 10 ℃, 4～5 district's temperature are 230 ± 10 ℃, and 6～9 district's temperature are 230 ± 10 ℃, and head temperature is 230 ± 10 ℃.
4. anti-folding stress whitening resistant polypropylene alkene according to claim 3 (PP) preparation methods, it is characterized in that: the described processing parameter of extruding is: engine speed is 300r/min, main feeding is given: 25kg/h, 1 district's temperature is 220 ℃ in 9 sections temperature controlled region, 2～3 district's temperature are 230 ℃, 4～5 district's temperature are 220 ℃, and 6～9 district's temperature are 220 ℃, and head temperature is 230 ℃.
CN2009101919351A 2009-12-15 2009-12-15 Anti-folding stress whitening resistant polypropylene (PP) material and preparation method thereof Expired - Fee Related CN101709124B (en)

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CN104725728B (en) * 2015-04-17 2017-01-04 宁波高新区卓尔化工科技有限公司 Resistance to stress is turned white PP plastics
CN104744822B (en) * 2015-04-17 2017-03-01 宁波高新区卓尔化工科技有限公司 Environmental protection pp plastic bottle
CN105725561A (en) * 2016-01-27 2016-07-06 河南工程学院 Multifunctional folding chair
CN106589781A (en) * 2016-12-27 2017-04-26 天津金发新材料有限公司 Stress-whitening-resisting antibacterial ABS (Acrylonitrile Butadiene Styrene) composition and preparation method thereof
CN106751035A (en) * 2016-12-29 2017-05-31 浙江普利特新材料有限公司 A kind of fold resistant is turned white PP composite material and preparation method thereof
CN107459713A (en) * 2017-07-27 2017-12-12 中广核俊尔新材料有限公司 PP composite material that a kind of proof stress turns white and its preparation method and application
CN107892776A (en) * 2017-11-21 2018-04-10 天津金发新材料有限公司 It is a kind of it is low turn white, resistance to oil bath, low temperature toughness reinforcing, bromine system anti-flaming polypropylene material
CN108774362B (en) * 2018-06-15 2021-05-25 广东美的环境电器制造有限公司 Stress whitening resistant master batch and preparation method thereof, halogen-free flame-retardant polypropylene material and preparation method thereof, and electric appliance
CN109161096A (en) * 2018-07-17 2019-01-08 苏州润佳工程塑料股份有限公司 A kind of resistance to stress is whitened polypropylene material and preparation method
CN110283358A (en) * 2019-07-16 2019-09-27 南京嘉雅精细化工有限公司 A kind of complex additive and preparation method thereof for loop polypropylene plant

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