CN109251410A - Low warp glass fiber reinforced polypropylene compound material and preparation method thereof - Google Patents

Low warp glass fiber reinforced polypropylene compound material and preparation method thereof Download PDF

Info

Publication number
CN109251410A
CN109251410A CN201810922704.2A CN201810922704A CN109251410A CN 109251410 A CN109251410 A CN 109251410A CN 201810922704 A CN201810922704 A CN 201810922704A CN 109251410 A CN109251410 A CN 109251410A
Authority
CN
China
Prior art keywords
reinforced polypropylene
glass
fiber reinforced
glass fiber
polypropylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810922704.2A
Other languages
Chinese (zh)
Inventor
金闪
赵茜菁
石耀琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU HECHANG JUHE MATERIAL Co Ltd
Original Assignee
SUZHOU HECHANG JUHE MATERIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUZHOU HECHANG JUHE MATERIAL Co Ltd filed Critical SUZHOU HECHANG JUHE MATERIAL Co Ltd
Priority to CN201810922704.2A priority Critical patent/CN109251410A/en
Publication of CN109251410A publication Critical patent/CN109251410A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/32Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/22Expandable microspheres, e.g. Expancel®
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised 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
    • C08J2323/10Homopolymers or copolymers of propene
    • C08J2323/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

The invention belongs to technical field of polymer composite materials, more particularly to low warp glass fiber reinforced polypropylene compound material and preparation method thereof, it is prepared by following raw material according to mass percent proportion: fiber glass reinforced polypropylene modified particles material 95.0-99.9%, microspheres 0.1-5.0%, total 100%, after mixing, it is molded according to conventional Shooting Technique condition.Low warp glass fiber reinforced polypropylene compound material provided by the invention and preparation method thereof can effectively improve the warpage issues of moulding while keeping the basic performance indices of glass fiber reinforced polypropylene composite material.

Description

Low warp glass fiber reinforced polypropylene compound material and preparation method thereof
Technical field
The invention belongs to technical field of polymer composite materials, and in particular to low warp glass fiber reinforced polypropylene compound material And preparation method thereof.
Background technique
Polypropylene (PP) material has good processing performance and relatively high cost performance.But virgin pp material stiffness It is relatively low, impact resistance is poor.Therefore for some applications for thering is high-rigidity high impact to require, such as automobile instrument framework, Skylight skeleton, tail-gate plate, it is often necessary to glass be added as reinforcing filler.Short glass fiber length generally as reinforcing filler is 1- 4 millimeters long, roving glass fiber length is 8-15 millimeters, and diameter is 10-20 microns, and draw ratio is more than 100.And other common increasings The typical aspect ratio of strong filler such as talcum powder and calcium carbonate is respectively 20 and 1 or so, and usual partial size is 7 microns.Therefore, Enhance the draw ratio of glass much higher than other common Non-fibrous reinforcing fillers.The so high draw ratio of glass usually makes to be enhanced Macromolecule base-material stronger molecular chain orientation is generated in injection moulding process, cause be orientated internal stress.In addition, fiberglass reinforced is poly- The coefficient of heat conduction of propylene is only higher than virgin pp, not as good as the one third of talc powder filled polypropylene.This is easy to lead It causes to shrink uneven when cooling and shaping and generate cooling internal stress.Therefore the presence of both internal stress often makes fiberglass reinforced Polypropylene moulding generates warpage.
Summary of the invention
In view of the above technical problems, the object of the present invention is to provide a kind of low warp glass fiber reinforced polypropylene compound materials Formula and preparation method.Particularly as being to add a small amount of expanded by heating microballoon in the injection molding of fiber glass reinforced polypropylene modified particles, so The low warpage moulding that warpage is obviously improved can be obtained by by conventional Shooting Technique and equipment afterwards.
It is realized especially by following technical scheme
Low warp glass fiber reinforced polypropylene compound material is prepared by following raw material according to mass percent proportion: glass Fiber reinforced polypropylene modified particles material 95.0-99.9%, microspheres 0.1-5.0% add up to 100%.
Wherein, the fiber glass reinforced polypropylene modified particles material, including following raw material are matched according to mass fraction and are prepared Gained: 35~90 parts of polypropylene, 10~65 parts of glass fibre, 0.1-10 parts of compatilizer, antioxidant and ultraviolet absorber 0.1~ 0.8 part, 0.1~0.5 part of lubricant.
Further, the polypropylene is homopolypropylene or copolymer polypropylene.
The glass fibre is short glass fiber, long glass fibres or glass fibre master batch.
The compatilizer is maleic anhydride grafts or coupling agent.
It further include other auxiliary agents, as fire retardant can add in right amount according to products application.
The preparation method of low warp glass fiber reinforced polypropylene compound material, comprising the following steps:
Step 1: preparing fiber glass reinforced polypropylene material;
Short glass fiber reinforced polypropylene: using short glass fiber as raw material, lead to after all raw materials are sufficiently mixed in proportion Extruder extruding pelletization is crossed, short fiber reinforced polypropylene modified particles are made;
Long glass fiber-reinforced polypropylene: using long glass fibres as raw material, the raw material in addition to glass fibre is abundant in proportion It is compound by cable cladding process or infusion process and continuous long glass fibres after mixing, it is poly- that long fiber reinforced is made after pelletizing Propylene modified particles;
Step 2: fiber glass reinforced polypropylene modified particles material and microspheres are mixed;
Step 3: being molded according to conventional Shooting Technique condition.
The injection temperature of short glass fiber reinforced polypropylene material is 210 degree or so, the injection molding of long glass fiber-reinforced polypropylene materials Temperature is 220-250 degree or so.
Low warp glass fiber reinforced polypropylene compound material provided by the invention and preparation method thereof is keeping fiberglass reinforced poly- While the basic performance indices of acrylic composite, the warpage issues of moulding can be effectively improved.
Specific embodiment
It is described in conjunction with the embodiments the specific technical solution of the present invention.
Expanded by heating microballoon is that inside has escaping gas solvent, the microballoon of heat in the exterior plastic housing structure.Microballoon is heated Volume can acutely expand 80-100 times afterwards.Present invention employs the thermoplasticity provided by Xi Neng chemical science and technology (Shanghai) Co., Ltd. Expandable microspheres.
Following percentage is all mass percent.
Embodiment 1: low warpage long glass fiber-reinforced polypropylene is prepared
40% long glass fiber-reinforced polypropylene includes preparing gained by following raw material: melt the polypropylene referred to 100 or so: 54.5%;Maleic anhydride inoculated polypropylene: 5%;Glass: 40%;Antioxidant 1010: 0.25%;Irgasfos 168: 0.25%;
Above-mentioned raw materials obtain long glass fiber reinforced particle by melt impregnation extruding pelletization.Extruder temperature is set in 170 Between~220 DEG C, dipping die head temperature is set as 280 degree.
In long glass fiber reinforced particulate material addition 1% expanded by heating microballoon, it is dry-mixed uniformly after, under 230 degree injection molding grow Rectangular big plate B.
As a comparison, then long glass fiber reinforced particulate material is molded to the big plate A of rectangle directly under 230 degree.
Embodiment 2: low warpage short glass fiber reinforced polypropylene is prepared
40% short glass fiber reinforced polypropylene includes following raw material components: melt refer to 20 or so polypropylene: 85.5%;Malaysia Anhydride-grafted polypropylene: 4%;Glass: 20%;Antioxidant 1010: 0.25%;Irgasfos 168: 0.25%;
Above-mentioned raw materials, which obtain short glass fiber by double-screw extruding pelletizing, enhances particle.Extruder temperature is set in 170~220 Between DEG C.
This short glass fiber enhancing particulate material in addition 1% expanded by heating microballoon, it is dry-mixed uniformly after, also 210 degree bets Mould the big plate D of rectangle.
As a comparison, above-mentioned short glass fiber enhancing particulate material is directly molded the big plate C of rectangle under 210 degree.
Resulting product warpage appraisal procedure:
Firstly, the big plate of injection molding rectangle (356X100X3.2mm).Then, it 24 hours after injection molding is completed, will grow The rectangular big plate tow sides of injection molding are successively horizontally arranged, and record is detached from the most apex angle of horizontal plane at a distance from horizontal plane.Record The average value of at least 5 pieces slab warpings.Testing result is shown in Table 2.
Table 1: it is molded big plate ingredient
A B C D
40% long glass fiber-reinforced polypropylene 100% 99%
20% short glass fiber reinforced polypropylene 100% 99%
Expanded by heating microballoon 1% 1%
Table 2: it is molded big plate performance
Warpage degree (millimeter) Density (g/cm3) Charpy Impact (KJ/cm2)
A 2.3 1.22 71
B 0.7 1.21 69
C 1.8 1.22 13
D 0.5 1.21 13
The warpage of moulding is significantly improved by the expanded by heating microballoon of the visible addition 1% of table 2, simultaneously other are basic Physical property such as density and impact property is uninfluenced.

Claims (6)

1. low warp glass fiber reinforced polypropylene compound material, which is characterized in that matched including following raw material according to mass percent Be prepared: fiber glass reinforced polypropylene modified particles material 95.0-99.9%, microspheres 0.1-5.0% add up to 100%.
2. low warp glass fiber reinforced polypropylene compound material according to claim 1, which is characterized in that the glass increases Strong polypropylene modification particulate material, including following raw material match obtained by preparation according to mass fraction: 35~90 parts of polypropylene, glass fibers 10~65 parts of dimension, 0.1-10 parts of compatilizer, antioxidant and 0.1~0.8 part of ultraviolet absorber, 0.1~0.5 part of lubricant.
3. low warp glass fiber reinforced polypropylene compound material according to claim 2, which is characterized in that the polypropylene For homopolypropylene or copolymer polypropylene.
4. low warp glass fiber reinforced polypropylene compound material according to claim 2, which is characterized in that the glass fibers Dimension is short glass fiber, long glass fibres or glass fibre master batch.
5. low warp glass fiber reinforced polypropylene compound material according to claim 2, which is characterized in that described is compatible Agent is maleic anhydride grafts or coupling agent.
6. according to claim 1 to the preparation method of low warp glass fiber reinforced polypropylene compound material described in 5, feature exists In, comprising the following steps:
Step 1: preparing fiber glass reinforced polypropylene modified particles material;
Short glass fiber reinforced polypropylene: using short glass fiber as raw material, by squeezing after all raw materials are sufficiently mixed in proportion Short fiber reinforced polypropylene modified particles are made in machine extruding pelletization out;
Long glass fiber-reinforced polypropylene: using long glass fibres as raw material, the raw material in addition to glass fibre is sufficiently mixed in proportion It is compound by cable cladding process or infusion process and continuous long glass fibres after good, long fiber reinforced polypropylene is made after pelletizing Modified particles;
Step 2: fiber glass reinforced polypropylene modified particles material and microspheres are mixed;
Step 3: being molded according to conventional Shooting Technique condition;
The injection temperature of short fiber reinforced polypropylene modified particles is 210 degree, the injection temperature of long fiber reinforced polypropylene modification particle For 220-250 degree.
CN201810922704.2A 2018-08-14 2018-08-14 Low warp glass fiber reinforced polypropylene compound material and preparation method thereof Pending CN109251410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810922704.2A CN109251410A (en) 2018-08-14 2018-08-14 Low warp glass fiber reinforced polypropylene compound material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810922704.2A CN109251410A (en) 2018-08-14 2018-08-14 Low warp glass fiber reinforced polypropylene compound material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN109251410A true CN109251410A (en) 2019-01-22

Family

ID=65049415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810922704.2A Pending CN109251410A (en) 2018-08-14 2018-08-14 Low warp glass fiber reinforced polypropylene compound material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN109251410A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111087693A (en) * 2019-12-25 2020-05-01 上海金发科技发展有限公司 Low-density low-dielectric hydrophobic polypropylene composite material and preparation method thereof
CN111138755A (en) * 2019-12-25 2020-05-12 江苏金发科技新材料有限公司 Low-density low-dielectric polypropylene composite material and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103772825A (en) * 2014-01-23 2014-05-07 深圳市科聚新材料有限公司 Long glass fiber enhanced polypropylene composite material and preparation method thereof
CN104031316A (en) * 2014-06-09 2014-09-10 温州科力塑业有限公司 Ultra-low density polypropylene composite material capable of being used for 3D printing and preparation method thereof.
CN106589579A (en) * 2016-10-27 2017-04-26 上海普利特复合材料股份有限公司 High-size-stability long glass fiber reinforced polypropylene composite material and preparation method thereof
CN107501735A (en) * 2017-09-13 2017-12-22 北京航天试验技术研究所 A kind of lower shrinkage, low density modified PP composite material and preparation method thereof
CN107501599A (en) * 2017-08-15 2017-12-22 成都新柯力化工科技有限公司 A kind of whisker by expandable microspheres foaming supports polypropylene plastics and preparation method
CN107892772A (en) * 2017-11-23 2018-04-10 中钢集团马鞍山矿山研究院有限公司 A kind of lightweight that resist warping continuous glass-fiber reinforced polypropylene compound material and preparation method
CN108327317A (en) * 2018-02-05 2018-07-27 苏州禾昌聚合材料股份有限公司 A kind of long glass fiber reinforced polyolefin panels continuous production processes
CN111234302A (en) * 2020-01-22 2020-06-05 快思瑞科技(上海)有限公司 Method for improving plastic shrinkage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103772825A (en) * 2014-01-23 2014-05-07 深圳市科聚新材料有限公司 Long glass fiber enhanced polypropylene composite material and preparation method thereof
CN104031316A (en) * 2014-06-09 2014-09-10 温州科力塑业有限公司 Ultra-low density polypropylene composite material capable of being used for 3D printing and preparation method thereof.
CN106589579A (en) * 2016-10-27 2017-04-26 上海普利特复合材料股份有限公司 High-size-stability long glass fiber reinforced polypropylene composite material and preparation method thereof
CN107501599A (en) * 2017-08-15 2017-12-22 成都新柯力化工科技有限公司 A kind of whisker by expandable microspheres foaming supports polypropylene plastics and preparation method
CN107501735A (en) * 2017-09-13 2017-12-22 北京航天试验技术研究所 A kind of lower shrinkage, low density modified PP composite material and preparation method thereof
CN107892772A (en) * 2017-11-23 2018-04-10 中钢集团马鞍山矿山研究院有限公司 A kind of lightweight that resist warping continuous glass-fiber reinforced polypropylene compound material and preparation method
CN108327317A (en) * 2018-02-05 2018-07-27 苏州禾昌聚合材料股份有限公司 A kind of long glass fiber reinforced polyolefin panels continuous production processes
CN111234302A (en) * 2020-01-22 2020-06-05 快思瑞科技(上海)有限公司 Method for improving plastic shrinkage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
常恩泽等编: "微球膨胀材料改性聚丙烯收缩率的研究", 《现代塑料加工应用》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111087693A (en) * 2019-12-25 2020-05-01 上海金发科技发展有限公司 Low-density low-dielectric hydrophobic polypropylene composite material and preparation method thereof
CN111138755A (en) * 2019-12-25 2020-05-12 江苏金发科技新材料有限公司 Low-density low-dielectric polypropylene composite material and preparation method thereof

Similar Documents

Publication Publication Date Title
CN107118437B (en) Lower shrinkage, Long Glass Fiber Reinforced PP Composite of low warpage and its preparation method and application
CN103589103B (en) A kind of Long Glass Fiber Reinforced PP Composite, preparation method and applications
CN104530563A (en) Injection-molding carbon fiber composite material and preparation method thereof, application of injection-molding carbon fiber composite material in automobile parts
CN101935420B (en) Automobile bottom deflector made of LFT-D (Fiber Reinforce Thermoplastic-Direct) material and manufacture method thereof
CN102977460A (en) Injecting molding grade natural fiber composite material and preparation method thereof
CN104371291B (en) The preparation method of high-performance halogen-free flame retardant long fiber reinforcement lactic acid composite material
CN104910517A (en) Bimodally-distributed glass fiber reinforced polypropylene composite material and preparation method thereof
CN104448803B (en) Halogen-free flame-retardant long-fiber-reinforced nylon 6 composite material and preparation method thereof
WO2012117975A1 (en) Injection formed body and fabrication method for same
CN105623097A (en) Nanometer-material-compounded long-glass-fiber-reinforced polypropylene material and preparing method thereof
CN102585358A (en) Natural fiber reinforced polypropylene composite material and preparation method thereof
CN109251410A (en) Low warp glass fiber reinforced polypropylene compound material and preparation method thereof
CN103044764A (en) High-toughness long-glass-fiber reinforced polypropylene composite material and method for preparing same
CN105670107A (en) High-surface-tension continuous glass fiber-reinforced polypropylene composite material and preparation method thereof
CN106009305B (en) High fluidity high rigidity high impact copolymer composite material
CN106009246A (en) Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof
KR20160023967A (en) A preparation method of natural fiber-reinforced plastic for car interior and natural fiber-reinforced plastic for car interior prepared by the same
CN104045963B (en) A kind of fiberglass reinforced high-light ABS resin combination being suitable to plating and preparation method and application
CN103507275A (en) Thermoplastic composite material molding method
CN104530739A (en) Thermotropic high-polymer liquid crystal reinforced/toughened polyolefin-base wood-plastic composite material and preparation method thereof
CN107540935B (en) Polypropylene reclaimed material composition and preparation method thereof
CN111574731A (en) Preparation method of modified carbon fiber reinforced nylon particles
CN100532451C (en) High impact-resistant reinforced PET composition and method of making the same
CN108624016B (en) Aramid fiber modified carbon fiber reinforced polylactic acid thermoplastic composite material and preparation method thereof
CN105907024A (en) Low-cost fiber-reinforced ABS wood-plastic composite and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190122