CN102061033A - Method for preparing scratch resistant type elastomer toughening polypropylene composite material - Google Patents

Method for preparing scratch resistant type elastomer toughening polypropylene composite material Download PDF

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Publication number
CN102061033A
CN102061033A CN2010106038466A CN201010603846A CN102061033A CN 102061033 A CN102061033 A CN 102061033A CN 2010106038466 A CN2010106038466 A CN 2010106038466A CN 201010603846 A CN201010603846 A CN 201010603846A CN 102061033 A CN102061033 A CN 102061033A
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China
Prior art keywords
rev
auxiliary agent
rotating speed
elastomerics
scrape resistant
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CN2010106038466A
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Chinese (zh)
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CN102061033B (en
Inventor
汪家宝
韩琛
牛建勋
陈芳欣
沈玉海
吴锡忠
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NANJING JINSHAN AUTOMOBILE ENGINEERING PLASTIC Co Ltd
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NANJING JINSHAN AUTOMOBILE ENGINEERING PLASTIC Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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 relates to a method for preparing a scratch resistant type elastomer toughening polypropylene composite material. The method for preparing the scratch resistant type elastomer toughening polypropylene composite material comprises the following steps of: processing a part of a scratch resistant auxiliary agent and elastomers into master batches; and adding the master batches to a mixture of polypropylene, inorganic fillers and an antioxidant for extruding and granulating to obtain a product. The product prepared by using the method can be used for greatly improving the efficiency of the scratch resistant auxiliary agent, has stable property and good scratch resistant property and can be widely applied to occasions having higher requirements on material surfaces.

Description

A kind of preparation method of scrape resistant type elastic body toughening polypropylene composite material
Technical field
The present invention relates to a kind of preparation method of scrape resistant type tenacity-increased profax, specifying is a kind of processing method that improves elastic body toughening polypropylene composite material surface scraping and wiping resistance performance.
Background technology
Polypropylene material is used for engineering plastics need pass through tough-increased and reinforced modification.General by adding the inorganic rigid particle enhancing, add thermoplastic elastomer toughening.After adding inorganic particulate and elastomerics, the PP material surface is easy to scratch, and promptly shows as the decline of scraping and wiping resistance performance.Thereby adopt interpolation scrape resistant auxiliary agent to improve its surperficial scraping and wiping resistance performance usually.
Main its principle of scrape resistant auxiliary agent is the skin friction coefficient that reduces material at present, improves the smooth property on its surface.At present technology is still for simply mixing the scrape resistant auxiliary agent with polypropylene, mineral filler, elastomerics and passing through the direct extruding pelletization of twin screw extruder.This technology can be so that the scrape resistant auxiliary agent migrates to the polypropylene-base surface, but elastomer particles also has part to be dispersed to the polypropylene-base surface simultaneously, caused composite material surface discontinuous, the surperficial smooth degree that weakened has reduced the efficient of scrape resistant auxiliary agent.
Conventional scrape resistant type polypropylene composite material complete processing for polypropylene, mineral filler, elastomerics, scrape resistant auxiliary agent, antioxidant is disposable extrudes, because anti-scratch liniment is the transport property auxiliary agent, by form the film of one deck low-friction coefficient at material surface, improve the scraping and wiping resistance performance of material.But because elastomerics is a disperse phase in just expecting, have part and be exposed to material surface, according to a conventional method, the scrape resistant auxiliary agent all trends towards being scattered in the external phase fully in extrusion, be difficult to enter elastomerics, be exposed to the elastomerics of material surface, material surface continuous thin film layer is cut off, reduce the scraping and wiping resistance performance of material.
 
Summary of the invention
The present invention seeks to by forming master batch earlier, the mode of granulation solves the relatively poor problem of polypropylene composite material surface scraping and wiping resistance performance of passing through elastic body toughening at present again, and the efficient that further improves existing scrape resistant auxiliary agent.
A kind of preparation method of scrape resistant type elastic body toughening polypropylene composite material, described polypropylene composite material comprises polypropylene, mineral filler, the mixture of elastomerics, scrape resistant auxiliary agent, antioxidant; It is characterized in that getting earlier 5%-20% weight percentage scrape resistant auxiliary agent and elastomerics and make master batch, the scrape resistant auxiliary agent of surplus, master batch and other component blend extruding pelletizations, wherein elastomerics accounts for the 5%-20% of polypropylene, mineral filler and elastomerics three weight summation.
Concrete preparation process is as follows:
(1) elastomerics and 5%-20% weight percentage scrape resistant auxiliary agent mixed under 300 ~ 500 rev/mins rotating speed 1 ~ 3 minute, mixed under 1500 ~ 2000 rev/mins rotating speed 10 ~ 15 minutes again, obtained pre-composition;
(2) with (1) described pre-composition through the twin screw extruder extruding pelletization, obtain master batch, the twin screw extruder extrusion temperature is 150 ~ 170 ℃;
(3) take by weighing polypropylene, master batch by formula rate, the scrape resistant auxiliary agent of surplus, antioxidant mixed under 300 ~ 500 rev/mins rotating speed 1 ~ 2 minute, mixed under 1500 ~ 2000 rev/mins rotating speed 10-15 minute;
(4) take by weighing a certain amount of superfine talcum powder by formula rate and be added in (3) described mixture, under 300 ~ 500 rev/mins rotating speed, mixed 8 ~ 10 minutes, obtain mixture;
(5) (4) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
The preparation method of a kind of scrape resistant type elastic body toughening polypropylene composite material of the present invention can significantly improve the efficient of scraping auxiliary agent, and is with low cost.Successfully overcome the influence of elastomeric interpolation to the material scraping and wiping resistance performance.The products obtained therefrom performance is adjustable, can extensively substitute external product, is applied to field, all kinds of middle and high end.
The scrape resistant type elastic body toughening polypropylene composite particle of present method preparation is guaranteeing under the constant situation of its physical and chemical performance after testing, under the scrape resistant stress condition of 10N, △ L value is not higher than 1.5(and detects by the company standard Q/SQR.04.137-2010 of Saic Chery Automobile Co., Ltd).
Embodiment
The preparation method of scrape resistant type tenacity-increased profax of the present invention illustrates the specific embodiment of the present invention by following examples:
Embodiment 1
Distribute material and measure its scraping and wiping resistance performance and the reference comparison by the different technology conditions preparation is low by preparation method of the present invention.
(1) take by weighing the elastomerics of 15 mass parts, the scrape resistant auxiliary agent of 0.6 mass parts mixed under 500 rev/mins rotating speed 2 minutes, mixed under 1500 rev/mins rotating speed 10 minutes again, obtained pre-composition;
(2) with (1) described pre-composition through the twin screw extruder extruding pelletization, obtain master batch, the twin screw extruder extrusion temperature is 150 ~ 170 ℃;
(3) take by weighing the polypropylene of 65 mass parts, the master batch of 15.6 mass parts, the scrape resistant auxiliary agent of 3.4 mass parts, the anti-oxidant auxiliary agent of 0.3 mass parts and under 500 rev/mins rotating speed, mixed 1 minute, under 2000 rev/mins rotating speed, mixed 10 minutes;
(4) superfine talcum powder that takes by weighing 20 mass parts is added in (3) described mixture, mixes under 500 rev/mins rotating speed 10 minutes, obtains mixture;
Take by weighing superfine talcum powder 20 mass parts and be added in (3) described mixture by formula rate, under 500 rev/mins rotating speed, mixed 10 minutes, obtain mixture;
(5) (4) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 0.32.
Reference
(1) polypropylene 65 mass parts that take by weighing by formula rate, elastomerics 15 mass parts, scrape resistant auxiliary agent 4 mass parts, antioxidant 0.3 mass parts mixed under 500 rev/mins rotating speed 2 minutes, mixed under 2000 rev/mins rotating speed 12 minutes;
(2) take by weighing superfine talcum powder 20 mass parts by formula rate and be added in (1) described mixture, under 500 rev/mins rotating speed, mixed 8 minutes, obtain mixture;
(3) (2) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 1.2.
 
Embodiment 2
(1) take by weighing the elastomerics of 5 mass parts, the scrape resistant auxiliary agent of 0.2 mass parts mixed under 300 rev/mins rotating speed 1 minute, mixed under 2000 rev/mins rotating speed 15 minutes again, obtained pre-composition;
(2) with (1) described pre-composition through the twin screw extruder extruding pelletization, obtain the elastomerics master batch, the twin screw extruder extrusion temperature is 150 ~ 170 ℃;
(3) take by weighing the polypropylene of mass parts 75, the master batch of 5.2 mass parts, the scrape resistant auxiliary agent of 3.8 mass parts, the anti-oxidant auxiliary agent of 0.3 mass parts and under 300 rev/mins rotating speed, mixed 1 minute, under 1500 rev/mins rotating speed, mixed 15 minutes;
(4) superfine talcum powder that takes by weighing 20 mass parts is added in (3) described mixture, mixes under 300 rev/mins rotating speed 8 minutes, obtains mixture;
(5) (4) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 0.15.
Reference
(1) polypropylene 75 mass parts that take by weighing by formula rate, elastomerics 5 mass parts, scrape resistant auxiliary agent 4 mass parts, antioxidant 0.3 mass parts mixed under 500 rev/mins rotating speed 2 minutes, mixed under 2000 rev/mins rotating speed 12 minutes;
(2) take by weighing superfine talcum powder 20 mass parts by formula rate and be added in (1) described mixture, under 500 rev/mins rotating speed, mixed 8 minutes, obtain mixture;
(3) (2) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 0.8.
 
Embodiment 3
(1) take by weighing the elastomerics of 20 mass parts, the scrape resistant auxiliary agent of 0.8 mass parts mixed under 400 rev/mins rotating speed 1.5 minutes, mixed under 1800 rev/mins rotating speed 12 minutes again, obtained pre-composition;
(2) with (1) described pre-composition through the twin screw extruder extruding pelletization, obtain the elastomerics master batch, the twin screw extruder extrusion temperature is 150 ~ 170 ℃;
(3) take by weighing the polypropylene of 60 mass parts, the master batch of 20.8 mass parts, the scrape resistant auxiliary agent of 3.2 mass parts, the anti-oxidant auxiliary agent of 0.3 mass parts and under 400 rev/mins rotating speed, mixed 1 minute, under 1500 rev/mins rotating speed, mixed 12 minutes;
(4) superfine talcum powder that takes by weighing 20 mass parts is added in (3) described mixture, mixes under 400 rev/mins rotating speed 9 minutes, obtains mixture;
Take by weighing the superfine talcum powder of 20 mass parts and be added in (3) described mixture by formula rate, under 400 rev/mins rotating speed, mixed 9 minutes, obtain mixture;
(5) (4) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 0.5.
Reference
(1) polypropylene 60 mass parts that take by weighing by formula rate, elastomerics 20 mass parts, scrape resistant auxiliary agent 4 mass parts, antioxidant 0.3 mass parts mixed under 500 rev/mins rotating speed 2 minutes, mixed under 2000 rev/mins rotating speed 12 minutes;
(2) take by weighing 20 mass parts superfine talcum powders, 20 mass parts by formula rate and be added in (1) described mixture, under 500 rev/mins rotating speed, mixed 8 minutes, obtain mixture;
(3) (2) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
After testing, this material scraping and wiping resistance performance, under 10N pressure, △ L value is 1.3.

Claims (1)

1. the preparation method of a scrape resistant type elastic body toughening polypropylene composite material, described polypropylene composite material comprises polypropylene, mineral filler, the mixture of elastomerics, scrape resistant auxiliary agent, antioxidant; It is characterized in that getting earlier 5%-20% weight percentage scrape resistant auxiliary agent and elastomerics and make master batch, the scrape resistant auxiliary agent of surplus, master batch and other component blend extruding pelletizations, wherein elastomerics accounts for the 5%-20% of polypropylene, mineral filler and elastomerics three weight summation;
Concrete preparation process is as follows:
(1) elastomerics and 5%-20% weight percentage scrape resistant auxiliary agent mixed under 300 ~ 500 rev/mins rotating speed 1 ~ 3 minute, mixed under 1500 ~ 2000 rev/mins rotating speed 10 ~ 15 minutes again, obtained pre-composition;
(2) with (1) described pre-composition through the twin screw extruder extruding pelletization, obtain master batch, the twin screw extruder extrusion temperature is 150 ~ 170 ℃;
(3) take by weighing polypropylene, master batch by formula rate, the scrape resistant auxiliary agent of surplus, antioxidant mixed under 300 ~ 500 rev/mins rotating speed 1 ~ 2 minute, mixed under 1500 ~ 2000 rev/mins rotating speed 10-15 minute;
(4) take by weighing a certain amount of superfine talcum powder by formula rate and be added in (3) described mixture, under 300 ~ 500 rev/mins rotating speed, mixed 8 ~ 10 minutes, obtain mixture;
(5) (4) described mixture is got product through the twin screw extruder extruding pelletization, extrusion temperature is 170 ~ 200 ℃.
CN2010106038466A 2010-12-24 2010-12-24 Method for preparing scratch resistant type elastomer toughening polypropylene composite material Active CN102061033B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103087399A (en) * 2012-12-28 2013-05-08 宁波长华汽车装饰件有限公司 High-toughness high-strength halogen-free flame-resistant polypropylene

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1990534A (en) * 2005-12-28 2007-07-04 上海日之升新技术发展有限公司 Process for preparing wear-resisting polypropene composite material for vehicle
WO2009092420A1 (en) * 2008-01-25 2009-07-30 Exxonmobil Chemical Patents Inc. Thermoplastic elastomer compositions
CN101845195A (en) * 2010-05-07 2010-09-29 浙江俊尔新材料有限公司 Wear-resistant thermoplastic elastomer and preparation method thereof
CN101864115A (en) * 2010-06-03 2010-10-20 浙江俊尔新材料有限公司 Scratch resistant and shock proof propylene-ethylene block copolymerization polypropylene modified material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1990534A (en) * 2005-12-28 2007-07-04 上海日之升新技术发展有限公司 Process for preparing wear-resisting polypropene composite material for vehicle
WO2009092420A1 (en) * 2008-01-25 2009-07-30 Exxonmobil Chemical Patents Inc. Thermoplastic elastomer compositions
CN101845195A (en) * 2010-05-07 2010-09-29 浙江俊尔新材料有限公司 Wear-resistant thermoplastic elastomer and preparation method thereof
CN101864115A (en) * 2010-06-03 2010-10-20 浙江俊尔新材料有限公司 Scratch resistant and shock proof propylene-ethylene block copolymerization polypropylene modified material

Non-Patent Citations (2)

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Title
《polymer testing》 20070701 Thomas Koch etal. Evaluation of scratch resistance in multiphase PP blends 第928-929页 1 第26卷, 第7期 *
《塑料工业》 20100120 范潇潇等 汽车内饰件用低气味耐刮擦聚丙烯的研制 第81页 第38卷, 第1期 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103087399A (en) * 2012-12-28 2013-05-08 宁波长华汽车装饰件有限公司 High-toughness high-strength halogen-free flame-resistant polypropylene

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Denomination of invention: Preparation method of scratch resistant elastomer toughened polypropylene composite material

Granted publication date: 20120822

Pledgee: Zijin Branch of Nanjing Bank Co.,Ltd.

Pledgor: NANJING JINSHAN AUTOMOBILE ENGINEERING PLASTIC Co.,Ltd.

Registration number: Y2024980036131