CN107880400A - A kind of impact polypropylene resin with low tension fracture elongation rate - Google Patents
A kind of impact polypropylene resin with low tension fracture elongation rate Download PDFInfo
- Publication number
- CN107880400A CN107880400A CN201610867791.7A CN201610867791A CN107880400A CN 107880400 A CN107880400 A CN 107880400A CN 201610867791 A CN201610867791 A CN 201610867791A CN 107880400 A CN107880400 A CN 107880400A
- Authority
- CN
- China
- Prior art keywords
- impact polypropylene
- polypropylene resin
- elongation rate
- fracture elongation
- hopp
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
-
- 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
Abstract
The invention belongs to technical field of polymer materials, specially a kind of impact polypropylene resin with low tension fracture elongation rate.The impact polypropylene resin is composition：Carry out propylene homo in the reactor first, obtain HOPP parent, its isotacticity is 90~97.5%；Then the HOPP parent enters next reactor, while adds propylene and carry out multiphase copolymer with ethene.The ethylene contents of the impact polypropylene resin finally given are 3~10wt%, and melt flow rate (MFR) is 3~12g/10min, and fusing point is 158~165 DEG C.The beneficial effects of the present invention are：There is the impact polypropylene resin that the present invention obtains good heat resistance, rigidity and toughness, particularly tension fracture elongation rate to significantly reduce, and be particularly suitable for application to the product of low tension fracture elongation rate requirement.
Description
Technical field
The present invention relates to technical field of polymer materials, is related to a kind of impact polypropylene resin, and more particularly to one kind has
The impact polypropylene resin of low tension fracture elongation rate.
Background technology
Commercial prod HOPP isotacticity is high, and strand regularity is good, therefore its rigidity and heat resistance are preferable, but
Toughness is poor.Impact polypropylene is typically produced using the method for multiphase copolymer, so as to improve polyacrylic toughness.Polypropylene is more
Mutually it is copolymerized：Carry out propylene homo in the reactor first, obtain HOPP parent；Then the HOPP parent enters
Enter next reactor, while add propylene and carry out multiphase copolymer with ethene.The impact polypropylene resin finally given is mainly by equal
The components such as poly- polypropylene, the rubber of second-the third and a small amount of crystallizable copolymer of second-the third form, and the component such as rubber of second-the third therein can show
Write and improve polyacrylic toughness.Therefore, impact polypropylene is widely used in the product higher to requirements such as rigidity and toughness.
In the prior art, the strand regularity of the HOPP parent in impact polypropylene is good, and isotacticity is high, isotactic
Degree is typically more than 97%, and strand tends to have sequence rearrangement when by external force.By the product that such impact polypropylene produces by
During force-extension, polypropylene molecular chain easily rearranges in draw direction, and it is higher to show as tension fracture elongation rate, so as to limit
The application in the product of low tension fracture elongation rate requirement is made.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to reduce the mother of the HOPP in impact polypropylene
The isotacticity of body, its strand regularity is set to be deteriorated, so that the tension fracture elongation rate of impact polypropylene significantly reduces.This hair
Bright impact polypropylene resin has low tension fracture elongation rate.
It is the specific technical scheme of the present invention below.
The present invention provides a kind of impact polypropylene resin with low tension fracture elongation rate, and the impact polypropylene resin is
Composition, it includes impact polypropylene, antioxidant and acid neutralizing agent；Wherein：Ethylene contents in impact polypropylene for 3~
10wt%, the melt flow rate (MFR) of impact polypropylene is 3~12g/10min, and fusing point is 158~165 DEG C；It by carrying out first
Propylene homo, the HOPP parent that isotacticity is 90~97.5% is obtained, then by HOPP parent and propylene, second
Alkene carries out multiphase copolymer and is prepared.
In the present invention, the isotacticity of HOPP parent is 92~96%.
In the present invention, the ethylene contents in impact polypropylene are 4~6wt%.
In the present invention, the melt flow rate (MFR) of impact polypropylene is 5~9g/10min.
In the present invention, the fusing point of impact polypropylene is 160~164.5 DEG C.
In the present invention, antioxidant is that weight ratio is 1:0.5~1:3 Hinered phenols antioxidant and phosphite ester kind antioxidant
The mixture of composition, acid neutralizing agent are calcium stearate or hydrogenation talcum powder.
In the present invention, the mass ratio of impact polypropylene, antioxidant and acid neutralizing agent is 100：(0.04~0.30)：(0.02
~0.10).
The beneficial effects of the present invention are, there is provided low tension fracture elongation rate impact polypropylene resin, have good
Heat resistance, rigidity and toughness, especially tension fracture elongation rate significantly reduce, and it is heat-resisting, special to be mainly used in high-ductility, Gao Gang, height
It is the relatively low product of tension fracture elongation rate.
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.Acrylic resin and the auxiliary agents such as antioxidant, acid neutralizing agent are mixed
Close, be 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.Polypropylene tree
Fat is 100 with the proportioning of antioxidant and acid neutralizing agent:0.20:0.07.
【Comparative example 1~2】
The feature of comparative example impact polypropylene resin is shown in Table 1.Antioxidant, the kind of acid neutralizing agent and the same embodiment of addition
1~3.
The tension fracture elongation rate of the impact polypropylene resin of each embodiment and comparative example is (with " tension failure norminal strain "
Characterize, method of testing carries out according to GB/T1040.2) and other physical and mechanical properties be shown in Table 2.
The embodiment of table 1. and the feature of comparative example impact polypropylene
Tension failure norminal strain and other physical and mechanical properties of the embodiment of table 2. with comparative example impact polypropylene resin
As seen from Table 1, embodiment HOPP parent isotacticity<97.5%, comparative example HOPP parent isotactic
Degree>97.5%.From the point of view of table 2, whole embodiments all have very low tension fracture elongation rate, and the two difference is huge, up to 2~3
Times.
Claims (7)
- A kind of 1. impact polypropylene resin with low tension fracture elongation rate, it is characterised in that：The impact polypropylene resin is Composition, it includes impact polypropylene, antioxidant and acid neutralizing agent；Wherein：Ethylene contents in impact polypropylene for 3~ 10wt%, the melt flow rate (MFR) of impact polypropylene is 3~12g/10min, and fusing point is 158~165 DEG C；It by carrying out first Propylene homo, the HOPP parent that isotacticity is 90~97.5% is obtained, then by HOPP parent and propylene, second Alkene carries out multiphase copolymer and is prepared.
- 2. impact polypropylene resin according to claim 1, it is characterised in that：The isotacticity of HOPP parent is 92 ~96%.
- 3. impact polypropylene resin according to claim 1, it is characterised in that the ethylene contents in impact polypropylene are 4 ~6wt%.
- 4. impact polypropylene resin according to claim 1, it is characterised in that the melt flow rate (MFR) of impact polypropylene is 5~9g/10min.
- 5. impact polypropylene resin according to claim 1, it is characterised in that the fusing point of impact polypropylene be 160~ 164.5℃。
- 6. impact polypropylene resin according to claim 1, it is characterised in that antioxidant is that weight ratio is 1:0.5~1:3 Hinered phenols antioxidant and phosphite ester kind antioxidant composition mixture, acid neutralizing agent is calcium stearate or hydrogenation talcum Powder.
- 7. impact polypropylene resin according to claim 1, it is characterised in that impact polypropylene, antioxidant and acid neutralize The mass ratio of agent is 100：(0.04~0.30)：(0.02~0.10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867791.7A CN107880400A (en) | 2016-09-29 | 2016-09-29 | A kind of impact polypropylene resin with low tension fracture elongation rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867791.7A CN107880400A (en) | 2016-09-29 | 2016-09-29 | A kind of impact polypropylene resin with low tension fracture elongation rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107880400A true CN107880400A (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610867791.7A Pending CN107880400A (en) | 2016-09-29 | 2016-09-29 | A kind of impact polypropylene resin with low tension fracture elongation rate |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106867A (en) * | 1993-06-17 | 1995-08-16 | 希蒙特公司 | Spinning process for the preparation of high thermoweldability polyolefin fibers |
| CN1989198A (en) * | 2004-06-18 | 2007-06-27 | 博里利斯技术有限公司 | Modified polypropylene composition |
| CN101589080A (en) * | 2006-11-17 | 2009-11-25 | 日本聚丙烯公司 | Propylene polymer, process for production of the propylene polymer, and propylene resin composition |
| CN102203178A (en) * | 2008-10-29 | 2011-09-28 | 北欧化工公司 | Tough composition for food applications |
| EP3015504A1 (en) * | 2014-10-27 | 2016-05-04 | Borealis AG | Heterophasic polypropylene with improved puncture respectively impact strength/stiffness balance |
| WO2016073062A1 (en) * | 2014-11-05 | 2016-05-12 | Exxonmobil Chemical Patents Inc. | Improved thermoplastic polyolefin design for enhanced stiffness, toughness, and viscosity balance |
-
2016
- 2016-09-29 CN CN201610867791.7A patent/CN107880400A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1106867A (en) * | 1993-06-17 | 1995-08-16 | 希蒙特公司 | Spinning process for the preparation of high thermoweldability polyolefin fibers |
| CN1989198A (en) * | 2004-06-18 | 2007-06-27 | 博里利斯技术有限公司 | Modified polypropylene composition |
| CN101589080A (en) * | 2006-11-17 | 2009-11-25 | 日本聚丙烯公司 | Propylene polymer, process for production of the propylene polymer, and propylene resin composition |
| CN102203178A (en) * | 2008-10-29 | 2011-09-28 | 北欧化工公司 | Tough composition for food applications |
| EP3015504A1 (en) * | 2014-10-27 | 2016-05-04 | Borealis AG | Heterophasic polypropylene with improved puncture respectively impact strength/stiffness balance |
| WO2016066447A1 (en) * | 2014-10-27 | 2016-05-06 | Borealis Ag | Heterophasic polypropylene with improved puncture respectively impact strength/stiffness balance |
| WO2016073062A1 (en) * | 2014-11-05 | 2016-05-12 | Exxonmobil Chemical Patents Inc. | Improved thermoplastic polyolefin design for enhanced stiffness, toughness, and viscosity balance |
Non-Patent Citations (3)
| Title |
|---|
| 中国模具设计大典编委会: "《中国模具设计大典：第2卷轻工模具设计》", 31 January 2003, 江西科学技术出版社 * |
| 葛勇: "《土木工程材料学》", 31 January 2007, 中国建材工业出版社 * |
| 董祥忠: "《现代塑料成型工程》", 30 September 2009, 国防工业出版社 * |
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