CN106916371A - A kind of preparation method of high tenacity PP composites - Google Patents
A kind of preparation method of high tenacity PP composites Download PDFInfo
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- CN106916371A CN106916371A CN201510994695.4A CN201510994695A CN106916371A CN 106916371 A CN106916371 A CN 106916371A CN 201510994695 A CN201510994695 A CN 201510994695A CN 106916371 A CN106916371 A CN 106916371A
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- high tenacity
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of preparation method of high tenacity PP composites, it is blended with PP/PC by extrusion by melting using toughener, forms stock utilization high tenacity PP composites high, the material feedstock is calculated by weight as：70 parts of polypropylene, 30 parts, compatilizer 0-12 parts of makrolon.Production method is blended by extrusion by melting with PP/PC using compatilizer, the transmission of material strip communicated band, air cold cut, pelletizing, the packaging that will be extruded.The present invention can directly extrude the PP composite material of high tenacity.
Description
Technical field
The invention belongs to PP reinforced plastics field, it is related to a kind of using toughener enhancing PP/PC composite materials.
Background technology
PC is unformed shape, excellent combination property, but processing fluidity is poor；PP processing fluidities are good, and both make up in blending
Mutual shortcoming.PP and PC are two kinds of materials of partially compatible, and PP and PC blendings only can be caused into serious phase separation, boundary
Cohesive force is poor, so as to cause the impact flexibility of composite low.Accordingly, it would be desirable to carry out toughening modifying to PP/PC composites.
The toughening modifying of current PP/PC composites is mainly according to physical increase-volume and reactive compatibilization principle addition phase
Hold agent, or ester exchange agent is added when PP/PC composite melting extrusions.Therefore we use four kinds of different increase-volumes
Agent E-BA（Ethylene-butyl acrylate）、E-MA-GMA（Ethylene-methyl acrylate-glyceryl methacrylate）、E-MA-
MAH（Ethylene-methyl acrylate-maleic anhydride）And EVA-g-MAH（Ethylene-vinyl acetate copolymer connects with maleic anhydride
Branch thing）To PP/PC（30：70）Composite is modified, and studies the content of toughener to strengthen the toughness of composite, makes
Both characteristics are efficiently utilized.
The content of the invention
It is an object of the invention to provide a kind of utilization bulking agent to the preparation method of PP/PC composite material toughenings, pass through
Different bulking agents strengthen interfacial adhesion to PP/PC composite modifications, by extrusion by melting by bulking agent and composite
It is blended, is prepared the PP/PC composites of high tenacity, the weight ratio of wherein PP and PC is 70:30, comprise the following steps that：
1st, the pretreatment of PP and PC：
PP dries 12 h, PC h of forced air drying 12 at 120 DEG C under 80 DEG C of vacuum.
2nd, the blending of bulking agent and PP/PC composites：
PP, PC, bulking agent are separately added into first, second, third Weightlessness balance, PP and PC are added from main spout, from the second side
Spout adds bulking agent, and by the content of Weightlessness balance accurate adjustment each component, processing temperature is between 240-250 DEG C.To squeeze
The transmission of the material strip that goes out communicated band, air cold cut, pelletizing obtain high tenacity PP composites of the present invention.
Specific embodiment
As no specific instructions, various raw materials of the invention can be by commercially available acquisition；Or according to the conventional method of this area
It is obtained.Unless otherwise defined or described herein.It is used herein it is all specialty and scientific words all with the skilled people of art technology
Meaning familiar to member institute is identical.Additionally, any method similar to described content or impartial and material all can be applied to this hair
In bright.
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.The implementation of unreceipted actual conditions in the following example, generally according to normal condition, or presses
Carried out according to the condition proposed by manufacturer.Unless otherwise stated, all of number is weight portion, all of percentage is
Percentage by weight, described polymer molecular weight is number-average molecular weight.
Step one
PP, PC pretreatment used in following examples is as follows:The DHG-9140B electric heating constant temperature forced air dryings produced using Shanghai
Case is dried 12 h to PC at 120 DEG C.Using the DZF-6020 vacuum drying chambers of Shanghai production at 80 DEG C to PP vacuum
Dry 12 h.
Step 2
It is 240 DEG C to set each process section temperature of double screw extruder, 245 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 250 DEG C,
250 DEG C, 250 DEG C, 180 DEG C, 160 DEG C, after temperature reaches setting value, the first Weightlessness balance is first opened, with the feeding of 20 kg/h
Speed adds PP powders from main spout, after after die extrusion PP, opens the second Weightlessness balance, is added with the speed of 9.5 kg/h
PC, after machine to be extruded operates steadily, opening side feeding and the 3rd Weightlessness balance add bulking agent, control with the speed of 2.27 kg/h
Between 70-90 rad/min, no more than the 80% of machine utilization, head melt temperature is no more than 170 DEG C to moment of torsion to screw speed,
The composite of bulking agent 7% is obtained, bulking agent rate of feeding is adjusted, different formulations are obtained, formula is shown in Table 1, and each performance formula is shown in
Table 2.
The content of the different formulations each component of table 1
| Raw material | Formula 1 | Formula 2 | Formula 3 | Formula 4 | Formula 5 | Formula 6 |
| PP | 70 | 70 | 70 | 70 | 70 | 70 |
| PC | 30 | 30 | 30 | 30 | 30 | 30 |
| Bulking agent | 2 | 4 | 6 | 8 | 10 | 12 |
The different formulations Performance comparision of table 2
As can be seen from Table 2, using four kinds of compatilizers to PP/PC（70：30）Carry out toughening modifying, wherein compatilizer E-BA, E-
MA-GMA is to PP/PC（70：30）The toughening effect of composite is most obvious.When E-BA contents are 4 %（wt）When, E-MA-GMA contains
Measure is 6%（wt）When toughening effect reach most preferably.
The above is only concrete application example of the invention, protection scope of the present invention is not limited in any way.It is every to adopt
The technical scheme formed with equivalents or equivalence replacement, all falls within potentiality protection domain of the present invention.
Claims (4)
1. a kind of preparation method of high tenacity PP composites, it is characterised in that be blended with PP/PC using compatilizer, passed through
Extrusion by melting prepares high tenacity PP/PC composites, and its raw material components by weight, is formulated as follows：
70 parts of PP
30 parts of PC
Compatilizer 0-12 parts.
2. the preparation method of a kind of high tenacity PP composites according to claim 1, it is characterised in that described is compatible
Agent is E-BA（Ethylene-butyl acrylate）、E-MA-GMA（Ethylene-methyl acrylate-glyceryl methacrylate）、E-
MA-MAH（Ethylene-methyl acrylate-maleic anhydride）And EVA-g-MAH（Ethylene-vinyl acetate copolymer and maleic anhydride
Graft）It is therein one or two.
3. the preparation method of a kind of high tenacity PP composites according to claim 1, it is characterised in that described PP with
The weight ratio of PC is 70：30.
4. a kind of preparation method of high tenacity PP composites according to claim 1, it is characterised in that its specific steps
It is as follows：
（1）, the PP/PC after treatment mixed in proportion with compatilizer
（2）, will（1）Middle mixture adds double screw extruder to be blended, basic batten cooling and dicing in atmosphere
（3）, will extrude and pelletizing obtained by particulate samples 12 h are dried at 80 DEG C in a vacuum, be molded into code test batten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994695.4A CN106916371A (en) | 2015-12-28 | 2015-12-28 | A kind of preparation method of high tenacity PP composites |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994695.4A CN106916371A (en) | 2015-12-28 | 2015-12-28 | A kind of preparation method of high tenacity PP composites |
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| Publication Number | Publication Date |
|---|---|
| CN106916371A true CN106916371A (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510994695.4A Pending CN106916371A (en) | 2015-12-28 | 2015-12-28 | A kind of preparation method of high tenacity PP composites |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400293A (en) * | 2017-08-25 | 2017-11-28 | 佛山市彩贵新型材料有限公司 | The preparation method of low temperature resistant flame retardant composite |
| CN107513216A (en) * | 2017-08-25 | 2017-12-26 | 佛山市彩贵新型材料有限公司 | A kind of low temperature resistant flame retardant composite |
| CN109370053A (en) * | 2018-10-24 | 2019-02-22 | 江苏亿超工程塑料有限公司 | A kind of high rigidity polypropylene paper core pipe and preparation method thereof |
| CN109504058A (en) * | 2018-11-13 | 2019-03-22 | 金发科技股份有限公司 | A kind of high weld bond strength polypropylene/polycarbonate alloy and preparation method thereof |
| CN109762259A (en) * | 2018-12-18 | 2019-05-17 | 武汉金牛经济发展有限公司 | The polypropylene random copolymer material and preparation method thereof of modified polycarbonate enhancing |
-
2015
- 2015-12-28 CN CN201510994695.4A patent/CN106916371A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400293A (en) * | 2017-08-25 | 2017-11-28 | 佛山市彩贵新型材料有限公司 | The preparation method of low temperature resistant flame retardant composite |
| CN107513216A (en) * | 2017-08-25 | 2017-12-26 | 佛山市彩贵新型材料有限公司 | A kind of low temperature resistant flame retardant composite |
| CN109370053A (en) * | 2018-10-24 | 2019-02-22 | 江苏亿超工程塑料有限公司 | A kind of high rigidity polypropylene paper core pipe and preparation method thereof |
| CN109504058A (en) * | 2018-11-13 | 2019-03-22 | 金发科技股份有限公司 | A kind of high weld bond strength polypropylene/polycarbonate alloy and preparation method thereof |
| WO2020098498A1 (en) * | 2018-11-13 | 2020-05-22 | 金发科技股份有限公司 | Polypropylene/polycarbonate alloy having high weld bond strength and preparation method therefor |
| CN109504058B (en) * | 2018-11-13 | 2021-04-06 | 金发科技股份有限公司 | High-melt-line-strength polypropylene/polycarbonate alloy and preparation method thereof |
| CN109762259A (en) * | 2018-12-18 | 2019-05-17 | 武汉金牛经济发展有限公司 | The polypropylene random copolymer material and preparation method thereof of modified polycarbonate enhancing |
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Application publication date: 20170704 |