CN101722689B - Micro-foamed composite board and manufacturing method thereof - Google Patents

Micro-foamed composite board and manufacturing method thereof Download PDF

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Publication number
CN101722689B
CN101722689B CN200910191840A CN200910191840A CN101722689B CN 101722689 B CN101722689 B CN 101722689B CN 200910191840 A CN200910191840 A CN 200910191840A CN 200910191840 A CN200910191840 A CN 200910191840A CN 101722689 B CN101722689 B CN 101722689B
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China
Prior art keywords
micro
polypropylene
composite board
vinyl
board
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Expired - Fee Related
Application number
CN200910191840A
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Chinese (zh)
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CN101722689A (en
Inventor
张伟
马皓
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CHONGQING BOBANG AUTOMOTIVE INTERIOR DECORATION Co Ltd
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CHONGQING BOBANG AUTOMOTIVE INTERIOR DECORATION Co Ltd
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Priority to CN200910191840A priority Critical patent/CN101722689B/en
Publication of CN101722689A publication Critical patent/CN101722689A/en
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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
    • B29C48/03—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
    • B29C48/92—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
    • B29C2948/92704—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
    • B29C2948/92504—Controlled parameter
    • B29C2948/92809—Particular value claimed
    • 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

Abstract

The invention discloses a micro-foamed composite board and a manufacturing method thereof. The composite board consists of a micro-foamed board and a non-woven fabric compounded on the micro-foamed board. The micro-foamed board is prepared from the following raw materials in percentage by weight: 66 to 70.5 percent of polypropylene, 3 to 4 percent of toughened modifier, 0.2 to 0.5 percent of foaming agent, and 25.5 to 30 percent of filler. The manufacturing method for the micro-foamed composite board comprises the following steps: firstly, adding the toughened modifier to the polypropylene for mixing and pelleting; then, adding the foaming agent and the filler for mixing and foaming; and finally extruding the board. By adding the toughened modifier, the foaming agent and the filler into the polypropylene, the toughness and the impact resistance of the polypropylene are improved, and the heat resistance of the product is improved. By melting at high temperature and foam molding through a foaming screw machine, the lowest intensity of the composite board can reach 0.45g/cm<3>. Due to the adoption of recovered polypropylene, the cost of the raw materials can be reduced by 20 to 30 percent. The micro-foamed composite board has the advantages of excellent product performance and great reduction of the production cost.

Description

A kind of micro-foamed composite board and manufacturing approach thereof
Technical field
The present invention relates to a kind of micro-foamed composite board, particularly a kind of automotive upholstery is with micro-foamed composite board and manufacturing approach thereof.
Background technology
The patent No. is that the Chinese patent of ZL200510057315.0 discloses a kind of polypropylene foamed sheet and non-woven fabric compounded manufacturing approach.This patent products obtained therefrom is to be primary raw material with the polypropylene, adds Ac blowing agent and carbonic acid silicon and processes little foam sheet, again with the non-woven fabric compounded composite plate of processing.During the raw material of this composite plate was formed, polyacrylic weight ratio was 70～80, because polypropylene costs an arm and a leg, so production cost is high, causes the price of composite plate also high, had therefore limited its use.
The said preparation method of this patent is directly to drop into polypropylene, Ac blowing agent and carbonic acid silicon in the extruding machine; Extrude little foam sheet through foaming; Though this manufacturing approach technology is simple, there are shortcomings such as poor toughness, shock resistance is strong, the heat-resistant deforming temperature is low in the composite plate of processing.
Summary of the invention
The objective of the invention is to disclose a kind of micro-foamed composite board, this composite plate good toughness, strong, the heat-resistant deforming temperature height of resistance performance.
Another object of the present invention is the manufacturing approach that discloses above-mentioned micro-foamed composite board, this manufacturing approach good mixing effect, frothing percentage height.
The objective of the invention is to realize like this: a kind of micro-foamed composite board; Constitute by little foaming plate and the nonwoven that is compounded in above little foaming plate; Said little foaming plate is to be processed by following raw material: polypropylene 66～70.5%, plasticized modifier: vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3～4%, blowing agent: Celogen Az 0.2～0.5%, filler: calcium carbonate 25.5～30%, by weight percentage; Wherein, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber mix with 2: 3 weight ratio.
The raw material of said little foaming plate and the weight percentage of various raw materials are preferably and are polypropylene 66%, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3.8%, Celogen Az 0.2%, calcium carbonate 30%.
The manufacturing approach of said little foaming plate is: in polypropylene, add plasticized modifier mixing, fusion, granulation earlier, add blowing agent and filler mixing, fusion, foaming then, extrusion board.
Said vinyl-vinyl acetate copolymer and ethylene propylene diene rubber mix use with 2: 3 weight ratio.
Said calcium carbonate granularity is 1250 orders.
Another object of the present invention is the manufacturing approach of above-mentioned micro-foamed composite board; Constitute by little foaming plate and the nonwoven that is compounded in above little foaming plate; Said little foaming plate weight percentages raw materials used and various raw materials are polypropylene 66～70.5%, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3～4%, Celogen Az 0.2～0.5%, calcium carbonate 25.5～30%, and its manufacturing step is following:
A) take by weighing polypropylene and vinyl-vinyl acetate copolymer and ethylene propylene diene rubber according to above-mentioned weight percentage and add mixing in the comminutor, fusion, granulation.
B) take by weighing blowing agent and filler according to above-mentioned weight percentage and add the mixing of foaming screw rod machine, fusion, the foaming that has blown foam die, extrusion board with the material of step a) granulation.
C) the step b) sheet material and the nonwoven hot pressing of extruding is compound, and cooling makes composite plate.
Above-mentioned steps a) in, the temperature of comminutor is 190 ℃～200 ℃.
Above-mentioned steps b) in, the extruder temperature of screw rod machine is 200 ℃～210 ℃, and screw speed is 70 commentaries on classics/min, and the blown foam die temperature is 190 ℃～200 ℃.
In the step c), sheet material is two-sided or single face and non-woven fabric compounded through three-roller hot pressing.
In the above-mentioned manufacturing step from c) to e) for the automation continuous processing, little foaming plate of extruding from blown foam die directly gets into three-roller, the high temperature that utilizes self need not smeared adhesive through three-roller hot pressing and non-woven fabric compounded.
In order further to reduce cost, above-mentioned polypropylene can be used recovery article.
Above-mentioned vinyl-vinyl acetate copolymer and ethylene propylene diene rubber are plasticized modifier, mix with 2: 3 weight ratios and use.
The present invention has following beneficial effect: the present invention is through adding plasticized modifier, blowing agent and filler in polypropylene; Polyacrylic toughness and impact resistance have been improved; The heat-resisting sex change that has improved product can; Through foaming screw rod machine high-temperature fusion, foaming, the composite plate least density can reach 0.45g/cm 3, hot strength>=13.65Mpa, high temperature size changing rate≤± 0.34%; Low temperature size changing rate≤± 0.20%, heat-resistant deforming temperature are up to more than 90 ℃, and 100 abrasion loss that rub are 15.3mg; Oder levels is 3 grades, and thickness is 1.0mm～10.0mm, adopts the polypropylene that reclaims; The cost of raw material can reduce by 20～30%, and not only properties of product are good, and production cost has had reduction significantly.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain.
Fig. 1 is a process chart of the present invention;
Fig. 2 is an automation continuous processing sketch map of the present invention.
The specific embodiment
Embodiment 1: a kind of micro-foamed composite board; Be made up of little foaming plate and the nonwoven that is compounded in above the sheet material, the raw material of said little foaming plate and the weight percentage of various raw materials are polypropylene 66%, vinyl-vinyl acetate copolymer 1.52%, ethylene propylene diene rubber 2.28%, Celogen Az 0.2%, calcium carbonate 30%.
Above-mentioned polypropylene is that the trade mark is the recovery article of T30S, pulverizes earlier before the use.
Its manufacturing approach is referring to Fig. 1, Fig. 2, and concrete manufacturing step is following:
A, take by weighing polypropylene, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber according to above-mentioned weight percentage, put into mixer and mix, then this compound being added temperature is in 200 ℃ the dual-screw pelletizer, obtains the material of granulation.
Add Celogen Az and calcium carbonate in the material of b, granulation; The feeding port 1 that adds the foaming screw rod machine 2 that has blown foam die; Screw rod 3 temperature are 200 ℃, and screw rod 3 rotating speeds are 70 commentaries on classics/min, are mixed into the terminal blown foam die 4 of foaming screw rod machine through screw rod 3; Blown foam die 4 temperature are 190 ℃, extrude little foaming plate from blown foam die 4.
C, little foaming plate of extruding directly get into three-roller 6, and through the two-sided compound nonwoven cloth 5 of three-roller 6 hot pressing, three-roller 6 hauling speeds are 4M/min.
The composite plate of d, compound nonwoven cloth is through coldplate 7, drawn to automatic cutting off table 9 by draw-gear 8 and cuts out.
Embodiment 2: a kind of micro-foamed composite board; Constitute by little foaming plate and the nonwoven that is compounded in above little foaming plate; The raw material of said little foaming plate and the weight percentage of various raw materials are: polypropylene 70.5%; Vinyl-vinyl acetate copolymer 1.2%, ethylene propylene diene rubber 1.8%, Celogen Az 0.3%, calcium carbonate 26.2%;
Above-mentioned polypropylene is commercially available plain polypropylene.
Its manufacturing step is with embodiment 1, and difference is that the dual-screw pelletizer temperature is 190 ℃, and the extruder temperature of foaming screw rod machine is that 210 ℃, blown foam die temperature are 200 ℃.

Claims (10)

1. micro-foamed composite board; Constitute by little foaming plate and the nonwoven that is compounded in above little foaming plate; It is characterized in that: said little foaming plate is to be processed by following raw material: polypropylene 66～70.5%, plasticized modifier: vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3～4%, blowing agent: Celogen Az 0.2～0.5%; Filler: calcium carbonate 25.5～30%, by weight percentage; Wherein, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber mix with the weight ratio of 2:3.
2. micro-foamed composite board as claimed in claim 1; It is characterized in that: the raw material of said little foaming plate and the weight percentage of various raw materials are polypropylene 66%, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3.8%, Celogen Az 0.2%, calcium carbonate 30%.
3. according to claim 1 or claim 2 micro-foamed composite board; It is characterized in that; The manufacturing approach of said little foaming plate is: in polypropylene, add plasticized modifier mixing, fusion, granulation earlier, add blowing agent and filler mixing, fusion, foaming then, extrusion board.
4. according to claim 1 or claim 2 micro-foamed composite board, it is characterized in that: said calcium carbonate granularity is 1250 orders.
5. micro-foamed composite board as claimed in claim 3 is characterized in that: it is characterized in that: said calcium carbonate granularity is 1250 orders.
6. like the manufacturing approach of each described micro-foamed composite board of claim 1～5; Constitute by little foaming plate and the nonwoven that is compounded in above little foaming plate; Said little foaming plate weight percentages raw materials used and various raw materials are polypropylene 66～70.5%, vinyl-vinyl acetate copolymer and ethylene propylene diene rubber 3～4%, Celogen Az 0.2～0.5%, calcium carbonate 25.5～30%, and its manufacturing step is following:
A) take by weighing polypropylene and vinyl-vinyl acetate copolymer and ethylene propylene diene rubber according to above-mentioned weight percentage and add mixing in the comminutor, fusion, granulation;
B) take by weighing blowing agent and filler according to above-mentioned weight percentage and add the mixing of foaming screw rod machine, fusion, the foaming that has blown foam die, extrusion board with the material of step a) granulation;
C) the step b) sheet material and the nonwoven hot pressing of extruding is compound, and cooling makes composite plate.
7. manufacturing approach as claimed in claim 6 is characterized in that, in the step a), the temperature of comminutor is 190 ℃～200 ℃.
8. manufacturing approach as claimed in claim 6 is characterized in that, in the step b), the extruder temperature of screw rod machine is 200 ℃～210 ℃, and screw speed is 70 commentaries on classics/min, and the blown foam die temperature is 190 ℃～200 ℃.
9. like claim 6,7 or 8 described manufacturing approaches, it is characterized in that in the step c), said sheet material is through three-roller and nonwoven hot pressing is two-sided or single face is compound.
10. like claim 6,7 or 8 described manufacturing approaches, it is characterized in that said polypropylene is a recovery article.
CN200910191840A 2009-12-10 2009-12-10 Micro-foamed composite board and manufacturing method thereof Expired - Fee Related CN101722689B (en)

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Application Number Priority Date Filing Date Title
CN200910191840A CN101722689B (en) 2009-12-10 2009-12-10 Micro-foamed composite board and manufacturing method thereof

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Application Number Priority Date Filing Date Title
CN200910191840A CN101722689B (en) 2009-12-10 2009-12-10 Micro-foamed composite board and manufacturing method thereof

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CN101722689A CN101722689A (en) 2010-06-09
CN101722689B true CN101722689B (en) 2012-09-19

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504426A (en) * 2011-10-26 2012-06-20 重庆巨翁塑料制造有限公司 Foamed polypropylene composite board and preparation method thereof
CN102702560B (en) * 2012-06-26 2014-01-01 重庆鸿岱科技有限公司 Compound foaming manufacturing method for polypropylene foaming material
CN103434240B (en) * 2013-09-03 2016-02-24 徐晓冰 A kind of polypropylene physical blowing composite plate and manufacturing process thereof
CN103509245B (en) * 2013-09-18 2014-12-03 湖北南泽汽车复合材料有限公司 Production method of one-step method polypropylene foam material
CN103756154A (en) * 2014-01-22 2014-04-30 深圳市科聚新材料有限公司 Polypropylene composite and preparation method thereof
CN104262779A (en) * 2014-09-15 2015-01-07 武汉理工大学 Method for recycling retired car polyolefin plastic parts and components by virtue of chemical foaming
CN106738580A (en) * 2017-01-22 2017-05-31 合肥华凌股份有限公司 The processing method and foaming plate of foaming plate
CN112428554A (en) * 2020-10-29 2021-03-02 青海百能汇通新能源科技有限公司 Carbon felt composite battery pole plate and production method thereof, carbon felt composite calendering equipment and flow battery

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