CN1041212C - Polyolefin compositions - Google Patents
Polyolefin compositions Download PDFInfo
- Publication number
- CN1041212C CN1041212C CN94107610A CN94107610A CN1041212C CN 1041212 C CN1041212 C CN 1041212C CN 94107610 A CN94107610 A CN 94107610A CN 94107610 A CN94107610 A CN 94107610A CN 1041212 C CN1041212 C CN 1041212C
- Authority
- CN
- China
- Prior art keywords
- weight
- polyolefin compositions
- ethylene
- polypropylene
- propylene rubber
- 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.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 24
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 13
- -1 polypropylene, ethylene-propylene Polymers 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 239000004743 Polypropylene Substances 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 8
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims abstract description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 2
- 229940059574 pentaerithrityl Drugs 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001897 terpolymer Polymers 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 7
- 239000011810 insulating material Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 6
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 229920001903 high density polyethylene Polymers 0.000 description 7
- 239000004700 high-density polyethylene Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a polyolefin composition, which comprises ethylene-butene-1 copolymer, polypropylene, ethylene-propylene rubber, low molecular weight polyethylene or polypropylene and an antioxidant, and the prepared composition has good mechanical property and processing property, and is particularly suitable for being used as an insulating material of a communication cable.
Description
The present invention relates to a kind of polyolefin compositions, relate in particular to the polyolefin compositions that is applicable to communication cable.Specially international and classification number is: C08L23/00.
The insulating material majority that present communication cable is used is a polythene material, comprises high-density (d=0.941～0.965g/cm
3) polyethylene (HDPE), middle density (d=0.926～0.940) polyethylene (MDPE) and low density (d=0.910～0.925g/cm
3) polyethylene (LDPE), wherein the high density polyethylene(HDPE) effect is best.The preparation method who is applicable to the high density polyethylene(HDPE) of communication cable insulating material has two kinds.The one, prepare with specific polymerization technique in reactor by ethene and specific catalyst; The 2nd, make through the method for blending and modifying by different polyethylene.Chinese patent 1054851A, belgian patent BE-901028A and Japanese publication 77--14647 all are that first part of document with the method preparation of two kinds of different polyethylene blends only provided polyethylene product density, melt flow rate (MFR) (MI) and processing characteristics; The two parts of documents in back only provide the density and the melt flow rate (MFR) (MI) of raw material and product.Mechanical property and electrical property for product all do not provide.And do not have other polymeric components in the prescription, add low density or medium-density polyethylene and must give the wear resistance of the finished product and bring adverse influence work-ing life; The low molecule that adds makes again and produces smog in the processing.The objective of the invention is to based on resins such as high density polyethylene(HDPE) polypropylene.The properties-correcting agent that adds specific quantity improves the mechanical property of product, improves processing characteristics.
Therefore, the invention provides a kind of polyolefin compositions, said composition comprises following component:
1. 20～95% (weight) density is 0.945～0.956g/cm
3Ethene and 1-Butylene copolymer, the melting index of this multipolymer (MI) be 0.1～0.8 the gram/10 minutes;
2. 5～90% (weight) polypropylene, this polyacrylic melting index (MI) are 8～12 grams/10 minutes;
3. 5～20% (weight) ethylene-propylene rubber(EPR), ethylene content is 50～60% (weight) in this ethylene-propylene rubber(EPR);
4. 0.3～2% (weight) molecular weight is that 2000～4000 polyethylene or melting index (MI) are/10 minutes polypropylene of 30～40 grams;
5. the oxidation inhibitor of 0.2～0.6% (weight).
Butene-1 content is 0.2～3.0% (weight) in described ethene and the 1-Butylene copolymer.
Described polypropylene is an alfon.
Described ethylene-propylene rubber(EPR) is binary or terpolymer EP rubber.
Described oxidation inhibitor is 2.6-ditertbutylparacresol or four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) tetramethylolmethane.
Composition of the present invention can prepare as follows:
Press material described in the 1-5 and given proportioning, be added in the super mixer after the metering respectively and mix with dry mix, again the material that mixes is added twin-screw extruder in 160～250 ℃ of extruding, cooling and dicing, can obtain the polyolefin compositions of excellent performance, said composition is particularly useful for doing the communication cable insulating material.
Inventor of the present invention proposes and prepares a kind of insulating material that not only had been applicable to (1500-2500m/min) traction at a high speed but also can have satisfied middle low speed (300-1200m/min) traction processing communication cable, this material has excellent mechanical property and its tensile strength of processing characteristics greater than 21MPa, and elongation is greater than 500.
Embodiment given below is used to illustrate the present invention, to its scope without any qualification
Embodiment 1～4
Each component of embodiment 1～4 each composition and amounts specified when the preparation composition, are added in the super mixer respectively in table 1, mix to be added to again and extrude cooling and dicing in the twin screw, metering packing can obtain the communication cable insulating material, and concrete operating parameters is listed in table 2
The preparation prescription of table 1 cable material of polyolefin and typical performance
The operating parameters of table 2 preparation composition
Claims (5)
1. polyolefin compositions, said composition comprises following component:
1.) 20～95% (weight) ethene and 1-Butylene copolymers, the density of this multipolymer is 0.945～0.956g/cm
3, melting index (MI) is 0.1～0.8 gram/10 minutes;
2. 5～90% (weight) polypropylene, this polyacrylic melting index (MI) are 9～12 grams/10 minutes;
3. 5～20% (weight) ethylene-propylene rubber(EPR), ethylene content is 50～60% (weight) in this ethylene-propylene rubber(EPR);
4. 0.3～2% (weight) molecular weight is that 2000～4000 polyethylene or melting index (MI) are the polypropylene of/10 fens kinds of 30～40 grams;
5. 0.2～0.6% (weight) oxidation inhibitor.
2. polyolefin compositions as claimed in claim 1 is characterized in that butene-1 content is 0.2～3.0% (weight) in ethene and the 1-Butylene copolymer.
3. polyolefin compositions as claimed in claim 1 is characterized in that polypropylene is an alfon.
4. polyolefin compositions as claimed in claim 1 is characterized in that, ethylene-propylene rubber(EPR) is binary or terpolymer EP rubber.
5. polyolefin compositions as claimed in claim 1 is characterized in that, oxidation inhibitor is 2.6-ditertbutylparacresol or four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) tetramethylolmethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94107610A CN1041212C (en) | 1994-07-08 | 1994-07-08 | Polyolefin compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94107610A CN1041212C (en) | 1994-07-08 | 1994-07-08 | Polyolefin compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099773A CN1099773A (en) | 1995-03-08 |
| CN1041212C true CN1041212C (en) | 1998-12-16 |
Family
ID=5033135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94107610A Expired - Lifetime CN1041212C (en) | 1994-07-08 | 1994-07-08 | Polyolefin compositions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041212C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1969007B (en) * | 2004-06-15 | 2010-05-12 | Lg电线有限公司 | Resin composition resistant to thermal deformation and cut-through and the insulation material and the cable using the same |
| CN102432726A (en) * | 2010-09-29 | 2012-05-02 | 中国石油化工股份有限公司 | Polyvinyl resin used for preparing chlorinated polyethylene and preparation method thereof |
| CN104130493A (en) * | 2014-07-25 | 2014-11-05 | 远东电缆有限公司 | High-oil resistance high-strength halogen-free low-smoke insulative rubber and preparation method thereof |
-
1994
- 1994-07-08 CN CN94107610A patent/CN1041212C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1099773A (en) | 1995-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140708 Granted publication date: 19981216 |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Zejian Document name: Notification of Expiration of Patent Right Duration |