CN108017833A - A kind of preparation method of high-modulus high impact resistance polypropylene resin - Google Patents
A kind of preparation method of high-modulus high impact resistance polypropylene resin Download PDFInfo
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- CN108017833A CN108017833A CN201610963433.6A CN201610963433A CN108017833A CN 108017833 A CN108017833 A CN 108017833A CN 201610963433 A CN201610963433 A CN 201610963433A CN 108017833 A CN108017833 A CN 108017833A
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- Prior art keywords
- polypropylene resin
- preparation
- impact
- antioxidant
- impact resistance
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—Propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/34—Polymerisation in gaseous state
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
- C08F210/06—Propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/24—Crystallisation aids
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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
- C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst
Abstract
The invention belongs to technical field of macromolecules, is specially a kind of preparation method of high-modulus high impact resistance polypropylene resin.The present invention's comprises the following steps that：First, propylene homo is carried out in the reactor, obtains homopolypropylene；Then, homopolypropylene and propylene, ethene are subjected to multiphase copolymer in Gas-phase reactor, obtain impact polypropylene resin；Finally, by impact polypropylene resin and antioxidant, acid neutralizing agent and nucleator mixing granulation, high-modulus high impact resistance polypropylene resin is obtained；Wherein：The nucleator is the new Narsil nucleators of Milliken.The beneficial effects of the present invention are：The high-modulus high impact resistance polypropylene resin that the present invention obtains has good heat resistance, rigidity and toughness, and particularly rigidity-toughness balanced is good, is particularly suitable for application to automobile interior exterior decorations modified base material.
Description
Technical field
The present invention relates to technical field of polymer materials, is related to a kind of preparation side of high-modulus high impact resistance polypropylene resin
Method.
Background technology
Homopolypropylene isotacticity is high, and strand regularity is good, therefore its rigidity and heat resistance are preferable, but toughness is poor.
Impact polypropylene is produced using the method for gas-phase copolymerization, so as to improve polyacrylic toughness.Polypropylene gas-phase copolymerization：First anti-
Answer and propylene homo is carried out in device, obtain homopolypropylene, then the homopolypropylene enters Gas-phase reactor, while anti-in gas phase
Addition propylene in device is answered to be copolymerized with ethene.The impact polypropylene resin finally obtained is mainly by homopolypropylene, the rubber of second-the third
The component such as glue and a small amount of crystallizable copolymer of second-the third forms, and the rubber component of second-the third therein is remarkably improved polyacrylic tough
Property.Therefore, impact polypropylene is widely used in the product higher to toughness reguirements.
In the prior art, the rubber component of second-the third in impact polypropylene is remarkably improved polyacrylic toughness, but is being formed
Enough rubber components of second-the third at the same time, have also produced polyethylene segment so that the modulus of product declines, and limits it in height
The use in modulus field.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of high-modulus high impact resistance polypropylene resin
Preparation method.Preparation method of the present invention is simple, and obtained acrylic resin has good heat resistance, rigidity and toughness, special
It is not that rigidity-toughness balanced is good, solves the problems, such as that modulus is low.
It is the specific technical solution of the present invention below.
The present invention provides a kind of preparation method of high-modulus high impact resistance polypropylene resin, comprises the following steps that：
First, propylene homo is carried out in the reactor, obtains the homopolypropylene that isotacticity is 92~98%；Then, will
Homopolypropylene and propylene, ethene carry out multiphase copolymer in Gas-phase reactor, obtain impact polypropylene resin, impact polypropylene
In resin, ethylene contents are 3~10wt%, and melt flow rate (MFR) MFR is 20~40g/10min, and fusing point is 158~168 DEG C；Most
Afterwards, by impact polypropylene resin and antioxidant, acid neutralizing agent and nucleator mixing granulation, high-modulus high impact resistance polypropylene is obtained
Resin；Wherein：The nucleator is the new Narsil nucleators of Milliken.
In the present invention, the isotacticity of the homopolypropylene parent is 94~98%.
In the present invention, the ethylene contents of the impact polypropylene resin are 4~8wt%.
In the present invention, the melt flow rate (MFR) MFR of the impact polypropylene resin is 25~35g/10min.
In the present invention, the fusing point of the impact polypropylene resin is 160~167 DEG C.
In the present invention, the antioxidant that impact polypropylene resin is added is that weight ratio is 1:0.7~1:2.5 Hinered phenols
The mixture of antioxidant and phosphite ester kind antioxidant composition, acid neutralizing agent are calcium stearate or hydrogenation talcum powder；Preferably, institute
The mass ratio for stating impact polypropylene resin, antioxidant, acid neutralizing agent and nucleator is 100：(0.05~0.20)：(0.02~
0.08)：(0.03~0.15).
The present invention preparation method it is simple, obtained high-modulus high impact resistance polypropylene resin have good heat resistance, just
Property and toughness, especially modulus significantly improve, rigidity-toughness balanced is good, be particularly suitable for application to automobile interior exterior decorations modified base material.
Embodiment
Below will the invention will be further described by specific embodiment.
【Embodiment 1~3】
The feature of embodiment impact polypropylene resin is shown in Table 1.By impact polypropylene resin and antioxidant, acid neutralizing agent, into
The auxiliary agents such as core agent mix, and are granulated and form through melting extrusion.
The present embodiment antioxidant uses four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters and three
The mixture of (2,4- di-tert-butyl-phenyl) phosphite ester, the two proportioning are 1:2, acid neutralizing agent is calcium stearate, and nucleator is
The new Narsil nucleators of Milliken.The proportioning of impact polypropylene resin and antioxidant, acid neutralizing agent and nucleator is 100:
0.20:0.06：0.1.
【Comparative example 1】
The feature of comparative example impact polypropylene resin is shown in Table 1.The kind and addition of antioxidant are with embodiment 1~3, in addition
Anti-scaling and Nucleating Agents are added, acrylic resin is 100 with anti-scaling and nucleator proportioning:0.015:0.1.
The physical mechanical property of the impact polypropylene resin of each embodiment and comparative example is shown in Table 2.
1. embodiment of table and the feature of comparative example impact polypropylene resin
The physical mechanical property for the product that 2. embodiment of table is obtained with comparative example
As seen from Table 1, the ethylene contents of embodiment impact polypropylene resin are relatively low, the second of comparative example impact polypropylene resin
Alkene content is higher.From the point of view of table 2, the obtained high-modulus high impact resistance polypropylene resin of the present invention all have higher bending modulus and
Heat distortion temperature, differs greatly with comparative example, all up to more than 25%.
Claims (7)
1. a kind of preparation method of high-modulus high impact resistance polypropylene resin, it is characterised in that comprise the following steps that：
First, propylene homo is carried out in the reactor, obtains the homopolypropylene that isotacticity is 92~98%；Then, by homopolymerization
Polypropylene and propylene, ethene carry out multiphase copolymer in Gas-phase reactor, obtain impact polypropylene resin, impact polypropylene resin
In, ethylene contents are 3~10wt%, and melt flow rate (MFR) MFR is 20~40g/10min, and fusing point is 158~168 DEG C；Finally,
By impact polypropylene resin and antioxidant, acid neutralizing agent and nucleator mixing granulation, high-modulus high impact resistance polypropylene tree is obtained
Fat；Wherein：The nucleator is the new Narsil nucleators of Milliken.
2. preparation method according to claim 1, it is characterised in that：The isotacticity of the homopolypropylene for 94~
98%.
3. preparation method according to claim 1, it is characterised in that：The ethylene contents of the impact polypropylene resin are 4
~8wt%.
4. preparation method according to claim 1, it is characterised in that：The melt flow rate (MFR) of the impact polypropylene resin
MFR is 25~35g/10min.
5. preparation method according to claim 1, it is characterised in that：The fusing point of the impact polypropylene resin for 160~
167℃。
6. preparation method according to claim 1, it is characterised in that the antioxidant is that weight ratio is 1:0.7~1:2.5
Hinered phenols antioxidant and phosphite ester kind antioxidant composition mixture, acid neutralizing agent is calcium stearate or hydrogenation talcum
Powder.
7. preparation method according to claim 1, it is characterised in that the impact polypropylene resin, antioxidant, acid neutralize
The mass ratio of agent and nucleator is 100：(0.05~0.20)：(0.02~0.08)：(0.03~0.15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610963433.6A CN108017833A (en) | 2016-10-28 | 2016-10-28 | A kind of preparation method of high-modulus high impact resistance polypropylene resin |
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| CN201610963433.6A CN108017833A (en) | 2016-10-28 | 2016-10-28 | A kind of preparation method of high-modulus high impact resistance polypropylene resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503937A (en) * | 2018-10-25 | 2019-03-22 | 中国石油化工股份有限公司 | A kind of preparation method of high fluidity high-modulus high heat resistance thin-walled injection moulding acrylic resin |
| CN112694678A (en) * | 2019-10-22 | 2021-04-23 | 中国石油化工股份有限公司 | Polypropylene composition for power pipe and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101679699A (en) * | 2007-04-09 | 2010-03-24 | 埃克森美孚化学专利公司 | The softish heterogeneous isotactic polyroplene compositions |
| CN102203178A (en) * | 2008-10-29 | 2011-09-28 | 北欧化工公司 | Tough composition for food applications |
| WO2016066447A1 (en) * | 2014-10-27 | 2016-05-06 | Borealis Ag | Heterophasic polypropylene with improved puncture respectively impact strength/stiffness balance |
-
2016
- 2016-10-28 CN CN201610963433.6A patent/CN108017833A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101679699A (en) * | 2007-04-09 | 2010-03-24 | 埃克森美孚化学专利公司 | The softish heterogeneous isotactic polyroplene compositions |
| CN102203178A (en) * | 2008-10-29 | 2011-09-28 | 北欧化工公司 | Tough composition for food applications |
| WO2016066447A1 (en) * | 2014-10-27 | 2016-05-06 | Borealis Ag | Heterophasic polypropylene with improved puncture respectively impact strength/stiffness balance |
Non-Patent Citations (1)
| Title |
|---|
| 张玉龙 等: "《塑料专用料配方设计与加工实例》", 31 January 2006, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503937A (en) * | 2018-10-25 | 2019-03-22 | 中国石油化工股份有限公司 | A kind of preparation method of high fluidity high-modulus high heat resistance thin-walled injection moulding acrylic resin |
| CN112694678A (en) * | 2019-10-22 | 2021-04-23 | 中国石油化工股份有限公司 | Polypropylene composition for power pipe and preparation method thereof |
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Application publication date: 20180511 |