CN105602114A - Polypropylene foamed composite board and manufacturing method thereof - Google Patents

Polypropylene foamed composite board and manufacturing method thereof Download PDF

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Publication number
CN105602114A
CN105602114A CN201610135164.4A CN201610135164A CN105602114A CN 105602114 A CN105602114 A CN 105602114A CN 201610135164 A CN201610135164 A CN 201610135164A CN 105602114 A CN105602114 A CN 105602114A
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China
Prior art keywords
polypropylene
premix
composite plate
preparation
maleic anhydride
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Pending
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CN201610135164.4A
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Chinese (zh)
Inventor
黄正尚
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Wenzhou Zhengshang Plastic And Rubber Technology Co Ltd
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Wenzhou Zhengshang Plastic And Rubber Technology Co Ltd
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Priority to CN201610135164.4A priority Critical patent/CN105602114A/en
Publication of CN105602114A publication Critical patent/CN105602114A/en
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    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1535—Five-membered rings
    • C08K5/1539—Cyclic anhydrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/20—Ternary blends of expanding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams

Abstract

The invention relates to a polypropylene foamed composite board and a manufacturing method thereof. According to the manufacturing principle of the polypropylene (PP) foamed composite board manufactured through a chemical foaming process, pure PP is adopted as a matrix, maleic anhydride is adopted as a cross-linking agent, dibenzoyl peroxide is adopted as a free radical initiator, compound AC is adopted as a foaming agent, after PP, maleic anhydride, dibenzoyl peroxide and compound AC are mixed, cross-linking pelleting is carried out in a twin-screw extruder, then pelleted particles are put into a single-screw extruder, and curtain coating is compounded after extruding to form the plate. The obtained composite plate has the advantages of being light, capable of achieving heat insulation, sound insulation, buffering, insulation and corrosion prevention, low in cost, capable of being recycled and the like, and can be widely applied to the fields of industry, agricultural product packaging, advertising industry, electric appliance industry, furniture industry, baby products, auto parts, stationery, gift boxes, cases, various packages, cushion plates, pet boxes, transfer boxes, decoration materials, building materials and the like.

Description

A kind of polypropylene expanded composite plate and preparation method thereof
Technical field
The preparation field that the invention belongs to expanded material, relates in particular to a kind of polypropylene expanded composite plate and preparation method thereof.
Background technology
Since China nineties in 20th century, the development of foamed plastics is very rapid, and wherein principal item has polyurethane (PU) soft and rigid foam, polystyrene (PS) foamed plastics and polyethylene (PE) foamed plastics three major types. But there is harmful isocyanates residue in polyurethane foam, and expanded material cannot be recycled in foaming process; And in polystyrene (PS) foaming process, conventionally can use HCFC or butane, environment is had to adverse effect, product degraded difficulty and easily formation " white pollution "; Polyethylene (PE) foamed plastics, foaming effect out softer, crosslinked PE foam rigidity is lower, and maximum operation (service) temperature is 80 DEG C, has circumscribed.
Acrylic resin has light weight, raw material sources are abundant, the ratio of performance to price is superior and good heat resistance, chemical resistance, is easy to the features such as recovery, is the fastest interchangeable heat plastic resin of increase of production amount in the world.
At present, China PP resin has become the resin kind of output maximum, and main application is assembling-disassembling and agricultural composite plate, and it is single that PP resin industry faces consumption structure, demand is not prosperous and product specification is low, current domestic its relevant, core technology capable of being industrialized that not yet have.
Summary of the invention
The object of the present invention is to provide a kind of composite plate taking polypropylene (PP) as main raw material(s), quality is good, and performance is good, cheap, and recycling capable of circulation, has wide range of applications.
For achieving the above object, the present invention adopts following technical scheme:
A kind of polypropylene expanded composite plate, its constituent is in mass ratio:
100～130 parts of polypropylene, 0.03～0.05 part of maleic anhydride, 0.01～0.02 part of dibenzoyl peroxide, 0.2～0.5 part of Celogen Az, 0.3～0.4 part of sodium acid carbonate, 0.1～0.2 part of trisodium citrate.
As preferably, the preparation method of described polypropylene expanded composite plate comprises:
A. by described maleic anhydride, dibenzoyl peroxide, polypropylene, Celogen Az, sodium acid carbonate and trisodium citrate mix and blend in proportion, obtain premix c;
B. described premix c is dropped in double screw extruder and processed, make granulation material d;
C. described granulation material d is dropped into granulator granulation, obtain pellet e;
D. described pellet e is dropped in single screw extrusion machine and processed, extrude rear compound curtain coating and become plate.
As preferably, in described steps A, first with ether, described maleic anhydride and described dibenzoyl peroxide are dissolved, obtain premix a, described polypropylene is mixed with described premix a, after ether volatilization, obtain premix b; Described Celogen Az, sodium acid carbonate and trisodium citrate are evenly mixedly configured into composite foamable agent; Described premix b and described composite foamable agent are placed in to batch mixer stirring at low speed, after 15 minutes, take out, obtain described premix c.
As preferably, in described step B, the barrel temperature of described double screw extruder is 165～180 DEG C, and die head temperature is 175～180 DEG C, and screw speed is 10～100 revs/min.
As preferably, in described step D, the barrel temperature of described single screw extrusion machine is 180～230 DEG C, and die head temperature is 180～190 DEG C, 40～90 revs/min of screw speeds.
As preferably, the twin-screw draw ratio of described double screw extruder is 45: 1.
As preferably, single screw slenderness ratio of described single screw extrusion machine is 50: 1.
In the present invention, polypropylene (PP) composite plate of preparing with chemical method foam process, its preparation principle is taking pure PP as matrix, maleic anhydride is crosslinking agent, and dibenzoyl peroxide is radical initiator, and compound AC is blowing agent, after mixing four, first crosslinked granulation in double screw extruder, then drops into granulation in single screw extrusion machine, extrudes rear compound curtain coating and becomes plate. The composite plate that the present invention makes has light weight, heat insulation, sound insulation, buffering, insulation, anticorrosion, cheap, the advantages such as recycling capable of circulation, can be widely used in: industry, agricultural products packaging, the fields such as advertising sector, electrical apparatus industry, furniture industry, articles for babies, auto parts and components, stationery, gift box, case and bag, various packaging, backing plate, pet box, Turnover Box, ornament materials, construction material.
Detailed description of the invention
Below in conjunction with detailed description of the invention, further set forth the present invention. Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described. In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1:
A kind of polypropylene expanded composite plate, its constituent is in mass ratio:
100 parts of polypropylene, 0.05 part of maleic anhydride, 0.02 part of dibenzoyl peroxide, 0.5 part of Celogen Az, 0.3 part of sodium acid carbonate, 0.1 part of trisodium citrate.
The preparation method of described polypropylene expanded composite plate comprises:
A. with ether, maleic anhydride and dibenzoyl peroxide are dissolved, obtain premix a, polypropylene is mixed with premix a, after ether volatilization, obtain premix b; Celogen Az, sodium acid carbonate and trisodium citrate are evenly mixedly configured into composite foamable agent; Premix b and composite foamable agent are placed in to batch mixer stirring at low speed, after 15 minutes, take out, obtain premix c; 170～175 DEG C of temperature ranges, pure PP and maleic anhydride are carried out to free radical grafting under the initiation at dibenzoyl peroxide, can improve PP melt index, by peroxide thermal decomposition, remove remaining free radical 175～180 DEG C of temperature ranges, can prevent depolymerization.
B. the premix c obtaining is dropped in double screw extruder charge door, the barrel temperature of double screw extruder is 165～180 DEG C, and die head temperature is 175～180 DEG C, and screw speed is 10～100 revs/min, twin-screw draw ratio is 45: 1, obtains granulation material d after extruding. Conventional method is first will after PP modification, to mix with blowing agent again at present, because the PP melt strength after modification is higher, be unfavorable for the dispersed of blowing agent, end product often has bubble distribution inequality, and the phenomenon such as bubble, method in the present invention is carried out PP grafting and granulation simultaneously, and in the time that PP melt strength is lower, first carry out mixing of blowing agent and PP, make to mix, be conducive to form the pore core of even compact, simplify preparation technology, saved the energy simultaneously.
C. granulation material d is dropped into granulator granulation, obtain pellet e;
D. the pellet e of gained is dropped in the charge door of single screw extrusion machine, the barrel temperature of single screw extrusion machine is 180～230 DEG C, and die head temperature is 180～190 DEG C, 40～90 revs/min of screw speeds, single screw slenderness ratio is 50: 1, extrudes rear compound curtain coating and becomes plate.
The thickness of the PP foamed composite board making is 2.0mm, and its cell diameter is 20～45 μ m, and cell density is 109～1011/cm3, and nothing is also steeped phenomenon, and composite plate is proportion 0.68g/cm3.
Embodiment 2:
A kind of polypropylene expanded composite plate, its constituent is in mass ratio:
130 parts of polypropylene, 0.03 part of maleic anhydride, 0.01 part of dibenzoyl peroxide, 0.2 part of Celogen Az, 0.4 part of sodium acid carbonate, 0.2 part of trisodium citrate.
The preparation method of described polypropylene expanded composite plate comprises:
A. with ether, maleic anhydride and dibenzoyl peroxide are dissolved, obtain premix a, polypropylene is mixed with premix a, after ether volatilization, obtain premix b; Celogen Az, sodium acid carbonate and trisodium citrate are evenly mixedly configured into composite foamable agent; Premix b and composite foamable agent are placed in to batch mixer stirring at low speed, after 15 minutes, take out, obtain premix c;
B. the premix c obtaining is dropped in double screw extruder charge door, the barrel temperature of double screw extruder is 165～180 DEG C, and die head temperature is 175～180 DEG C, and screw speed is 10～100 revs/min, twin-screw draw ratio is 45: 1, obtains granulation material d after extruding;
C. granulation material d is dropped into granulator granulation, obtain pellet e;
D. the pellet e of gained is dropped in the charge door of single screw extrusion machine, the barrel temperature of single screw extrusion machine is 180～230 DEG C, and die head temperature is 180～190 DEG C, 40～90 revs/min of screw speeds, single screw slenderness ratio is 50: 1, extrudes rear compound curtain coating and becomes plate.
The thickness of the PP foamed composite board making is 2.5mm,, its cell diameter is 15～30 μ m, and cell density is～1011/cm3, and nothing is also steeped phenomenon, is opaque composite plate, and composite plate proportion is 0.65g/cm3.
Embodiment 3:
A kind of polypropylene expanded composite plate, its constituent is in mass ratio:
120 parts of polypropylene, 0.04 part of maleic anhydride, 0.015 part of dibenzoyl peroxide, 0.4 part of Celogen Az, 0.3 part of sodium acid carbonate, 0.15 part of trisodium citrate.
The preparation method of described polypropylene expanded composite plate comprises:
A. with ether, maleic anhydride and dibenzoyl peroxide are dissolved, obtain premix a, polypropylene is mixed with premix a, after ether volatilization, obtain premix b; Celogen Az, sodium acid carbonate and trisodium citrate are evenly mixedly configured into composite foamable agent; Premix b and composite foamable agent are placed in to batch mixer stirring at low speed, after 15 minutes, take out, obtain premix c;
B. the premix c obtaining is dropped in double screw extruder charge door, the barrel temperature of double screw extruder is 165～180 DEG C, and die head temperature is 175～180 DEG C, and screw speed is 10～100 revs/min, twin-screw draw ratio is 45: 1, obtains granulation material d after extruding;
C. granulation material d is dropped into granulator granulation, obtain pellet e;
D. the pellet e of gained is dropped in the charge door of single screw extrusion machine, the barrel temperature of single screw extrusion machine is 180～230 DEG C, and die head temperature is 180～190 DEG C, 40～90 revs/min of screw speeds, single screw slenderness ratio is 50: 1, extrudes rear compound curtain coating and becomes plate.
The thickness of the PP foamed composite board making is 3.0mm, and its cell diameter is 5～35 μ m, and cell density is 1010～1011/cm3, and nothing is also steeped phenomenon, is opaque composite plate, and composite plate proportion is 0.62g/cm3.

Claims (7)

1. a polypropylene expanded composite plate, is characterized in that, constituent is in mass ratio:
100～130 parts of polypropylene, 0.03～0.05 part of maleic anhydride, 0.01～0.02 part of dibenzoyl peroxide, 0.2～0.5 part of Celogen Az, 0.3～0.4 part of sodium acid carbonate, 0.1～0.2 part of trisodium citrate.
2. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 1, is characterized in that, comprising:
A. by described maleic anhydride, dibenzoyl peroxide, polypropylene, Celogen Az, sodium acid carbonate and trisodium citrate mix and blend in proportion, obtain premix c;
B. described premix c is dropped in double screw extruder and processed, make granulation material d;
C. described granulation material d is dropped into granulator granulation, obtain pellet e;
D. described pellet e is dropped in single screw extrusion machine and processed, extrude rear compound curtain coating and become plate.
3. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 2, it is characterized in that, in described steps A, first with ether, described maleic anhydride and described dibenzoyl peroxide are dissolved, obtain premix a, described polypropylene is mixed with described premix a, after ether volatilization, obtain premix b; Described Celogen Az, sodium acid carbonate and trisodium citrate are evenly mixedly configured into composite foamable agent; Described premix b and described composite foamable agent are placed in to batch mixer stirring at low speed, after 15 minutes, take out, obtain described premix c.
4. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 2, it is characterized in that, in described step B, the barrel temperature of described double screw extruder is 165～180 DEG C, die head temperature is 175～180 DEG C, and screw speed is 10～100 revs/min.
5. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 2, is characterized in that, in described step D, the barrel temperature of described single screw extrusion machine is 180～230 DEG C, and die head temperature is 180～190 DEG C, 40～90 revs/min of screw speeds.
6. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 4, is characterized in that, the twin-screw draw ratio of described double screw extruder is 45: 1.
7. the preparation method of a kind of polypropylene expanded composite plate as claimed in claim 5, is characterized in that, single screw slenderness ratio of described single screw extrusion machine is 50: 1.
CN201610135164.4A 2016-03-10 2016-03-10 Polypropylene foamed composite board and manufacturing method thereof Pending CN105602114A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106335446A (en) * 2016-08-31 2017-01-18 芜湖恒信汽车内饰制造有限公司 Automobile front door decoration plate component
CN106380686A (en) * 2016-08-31 2017-02-08 芜湖恒信汽车内饰制造有限公司 Foaming material for automobile front door decorative plate assembly
CN106397972A (en) * 2016-08-31 2017-02-15 芜湖恒信汽车内饰制造有限公司 Preparation method for foaming material used for decorative plate assembly of front automobile door
CN110549719A (en) * 2019-08-28 2019-12-10 江苏银辉生态科技有限公司 KHG sound insulation board and preparation method thereof
CN113248826A (en) * 2021-04-23 2021-08-13 惠州市峄董塑胶科技有限公司 High-toughness wear-resistant turnover box plate

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CN103275397A (en) * 2013-06-21 2013-09-04 福建省晋江市晋亿鞋材有限公司 Modified micropore foaming polypropylene material and preparation method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106335446A (en) * 2016-08-31 2017-01-18 芜湖恒信汽车内饰制造有限公司 Automobile front door decoration plate component
CN106380686A (en) * 2016-08-31 2017-02-08 芜湖恒信汽车内饰制造有限公司 Foaming material for automobile front door decorative plate assembly
CN106397972A (en) * 2016-08-31 2017-02-15 芜湖恒信汽车内饰制造有限公司 Preparation method for foaming material used for decorative plate assembly of front automobile door
CN110549719A (en) * 2019-08-28 2019-12-10 江苏银辉生态科技有限公司 KHG sound insulation board and preparation method thereof
CN110549719B (en) * 2019-08-28 2022-05-27 江苏银辉生态科技有限公司 KHG sound insulation board and preparation method thereof
CN113248826A (en) * 2021-04-23 2021-08-13 惠州市峄董塑胶科技有限公司 High-toughness wear-resistant turnover box plate

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Application publication date: 20160525