CN109280313A - The excellent LDPE graft copolymer of ageing-resistant performance and preparation method thereof preparation facilities - Google Patents
The excellent LDPE graft copolymer of ageing-resistant performance and preparation method thereof preparation facilities Download PDFInfo
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- CN109280313A CN109280313A CN201810950961.7A CN201810950961A CN109280313A CN 109280313 A CN109280313 A CN 109280313A CN 201810950961 A CN201810950961 A CN 201810950961A CN 109280313 A CN109280313 A CN 109280313A
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- ldpe
- ageing
- resistant performance
- graft copolymer
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
The invention discloses the excellent LDPE graft copolymers of ageing-resistant performance, component including following parts by weight: LDPE100 parts, 2 ~ 3 parts of 4- Thioglycolic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1 ~ 1.5 part of-Methacrylamide, DCP0.7 ~ 0.9 part, cured 0.5 ~ 0.8 part of PE, EVA3 parts, 1 ~ 1.6 part of auxiliary agent.Meanwhile the invention also discloses the preparation methods and preparation facilities of above-mentioned LDPE graft copolymer.The present invention is in LDPE extrusion process, response type stabilizer monomer 4- Thioglycolic acid aminodiphenylamine and the antioxidant monomer N-(4- aniiinophenyl with synergistic effect are introduced on strand in)-Methacrylamide, under the action of DCP, graft reaction occurs on LDPE strand.The LDPE copolymer obtained after graft reaction, ageing-resistant performance are greatly improved, and expand its use scope.
Description
Technical field
The invention belongs to wire and cable preparation fields, and in particular to a kind of LDPE graft copolymer that ageing-resistant performance is excellent
And preparation method thereof, preparation facilities.
Background technique
LDPE(low density polyethylene (LDPE)) it is a kind of general thermoplastic macromolecule material, there is preferable comprehensive performance, extensively
Applied to various films, it is molded blow-molded article, Extrusion Coating, various wire and cables etc..By LDPE molecular structure and its institute
The reasons such as the trace impurity contained, and influenced by the external causes such as atmospheric environment and processing and forming condition, thermal oxide and light can be generated
Oxidation, the result of these aging reactions will lead to LDPE and degradation reaction occur, and so that its insulation performance is degenerated, physical mechanical property
It can reduce, so that it be made to lose use value.By the method for the additives such as addition stabilizer, antioxidant, all can only partially delay
Solve aging.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to which it is excellent to provide a kind of ageing-resistant performance
LDPE graft copolymer.
Another object of the present invention is to provide the preparation methods of above-mentioned LDPE graft copolymer.
It is also an object of the present invention to provide the preparation facilities of above-mentioned LDPE graft copolymer.
Technical solution: in order to achieve the above object of the invention, the present invention is specifically achieved like this: ageing-resistant performance is excellent
LDPE graft copolymer, the component including following parts by weight: LDPE100 parts, 2 ~ 3 parts of 4- Thioglycolic acid aminodiphenylamine,
N-(4- phenylamino phenyl) 1 ~ 1.5 part of-Methacrylamide, DCP0.7 ~ 0.9 part, cured 0.5 ~ 0.8 part of PE, EVA3 parts, auxiliary agent 1 ~
1.6 part.
Wherein, the auxiliary agent be selected from one of double Lauryl Alcohol esters, bi-myristoleyl or double octadecanol esters with it is double
The mixing of (3,5- three-level butyl -4- hydroxy phenyl) thioether, further, the auxiliary agent is by double Lauryl Alcohol esters, double ten four carbon alcohols
One of ester or double octadecanol esters are mixed with mass ratio 2 ~ 3:1 ~ 2 and (3,5- three-level butyl -4- hydroxy phenyl) thioether,
Centrifuge acts on lower 10 ~ 20min of centrifugal mixer.
The method for preparing the excellent LDPE graft copolymer of above-mentioned ageing-resistant performance, comprising the following steps:
(1) stand-by by each raw material of formula measurement；
(2) screw extruder is added in LDPE；
(3) when running in screw extruder to screw extruder length 5/12 as LDPE, at this into screw extruder
4- Thioglycolic acid aminodiphenylamine, N-(4- phenylamino phenyl is added)-Methacrylamide and DCP, and continue to run, to above-mentioned
When material is run to screw extruder length 5/8, PE cured, EVA and auxiliary agent is added into screw extruder at this, until plus
Enter material to squeeze out completely out of screw extruder.
Wherein, the screw extruder is divided into 12 thermotonus areas, 12 thermotonuses from inlet according to its length
Section length is identical, and it is 140 ~ 150 DEG C that temperature, which is set gradually, and 150 ~ 160 DEG C, 160 ~ 170 DEG C, 170 ~ 180 DEG C, 180 ~ 190 DEG C,
190 ~ 200 DEG C, 200 ~ 210 DEG C, 210 ~ 220 DEG C, 200 ~ 210 DEG C, 190 ~ 200 DEG C, 180 ~ 190 DEG C, 170 ~ 180 DEG C.
The preparation facilities of the LDPE graft copolymer excellent for above-mentioned ageing-resistant performance, including with cylindrical barrel
Screw extruder, which is characterized in that one end of the cylinder is equipped with No.1 loading hopper, sets on the cylinder of No.1 loading hopper side
There are No. two loading hoppers, No. three loading hoppers, the spacing between No. two loading hoppers and No.1 loading hopper is the 5/12 of barrel lenght,
Spacing between No. three loading hoppers and No.1 loading hopper is the 5/8 of barrel lenght.
Wherein, the diameter of the cylinder and length ratio are 1:48.
The utility model has the advantages that the present invention compared with traditional technology, in LDPE extrusion process, introduces instead on strand in
Answer type stabilizer monomer 4- Thioglycolic acid aminodiphenylamine and the antioxidant monomer N-(4- aniiinophenyl with synergistic effect)-
On LDPE strand graft reaction occurs for Methacrylamide under the action of DCP.The LDPE obtained after graft reaction is total
Polymers, ageing-resistant performance are greatly improved, and expand its use scope.
Detailed description of the invention
Fig. 1 is preparation facilities structural schematic diagram of the present invention.
Specific embodiment
Embodiment 1:
The excellent LDPE graft copolymer of ageing-resistant performance, is composed of the following parts by weight: LDPE100 parts, 4- dredges base
2 parts of acetic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1 part of-Methacrylamide, DCP0.7 parts, cured 0.5 part of PE, EVA3 parts,
1 part of auxiliary agent.
Embodiment 2:
The excellent LDPE graft copolymer of ageing-resistant performance, is composed of the following parts by weight: LDPE100 parts, 4- dredges base
3 parts of acetic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1.5 parts of-Methacrylamide, DCP0.9 parts, cured 0.8 part of PE, EVA3
Part, 1.6 parts of auxiliary agent.
Embodiment 3:
The excellent LDPE graft copolymer of ageing-resistant performance, is composed of the following parts by weight: LDPE100 parts, 4- dredges base
2.5 parts of acetic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1.2 parts of-Methacrylamide, DCP0.8 parts, cured 0.6 part of PE,
EVA3 parts, 1.3 parts of auxiliary agent.
Embodiment 4:
The excellent LDPE graft copolymer of ageing-resistant performance, is composed of the following parts by weight: LDPE100 parts, 4- dredges base
2.2 parts of acetic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1.3 parts of-Methacrylamide, DCP0.75 parts, cured 0.7 part of PE,
EVA3 parts, 1.2 parts of auxiliary agent.
Embodiment 5:
The excellent LDPE graft copolymer of ageing-resistant performance, is composed of the following parts by weight: LDPE100 parts, 4- dredges base
2 ~ 3 parts of acetic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1.4 parts of-Methacrylamide, DCP0.85 parts, cured 0.6 part of PE,
EVA3 parts, 1.5 parts of auxiliary agent.
Embodiment 6:
The method for preparing the excellent LDPE graft copolymer of ageing-resistant performance: it is stand-by that each raw material is measured by formula；First by LDPE
Screw extruder is added, when LDPE is run in screw extruder to screw extruder length 5/12, to screw rod at this
4- Thioglycolic acid aminodiphenylamine, N-(4- phenylamino phenyl are added in extruder)-Methacrylamide and DCP, and after reforwarding
PE cured, EVA are added at this and is helped into screw extruder when above-mentioned material is run to screw extruder length 5/8 for row
Agent is squeezed out out of screw extruder completely until material is added.
Embodiment 7:
The preparation facilities of the LDPE graft copolymer excellent for ageing-resistant performance as shown in Figure 1, including with cylindric cylinder
One end of the screw extruder of body, the cylinder 1 is equipped with No.1 loading hopper 2, is equipped on the cylinder 1 of 2 side of No.1 loading hopper
3, No. three loading hoppers 4 of No. two loading hoppers.
Embodiment 8:
Reference implementation example 7, the spacing between No. two loading hoppers 3 and No.1 loading hopper 2 is the 5/12 of 1 length of cylinder, described
Spacing between No. three loading hoppers 4 and No.1 loading hopper 2 is the 5/8 of 1 length of cylinder, and the diameter and length ratio of the cylinder are 1:
48。
Claims (7)
1. the excellent LDPE graft copolymer of ageing-resistant performance, which is characterized in that the component including following parts by weight:
LDPE100 parts, 2 ~ 3 parts of 4- Thioglycolic acid aminodiphenylamine, N-(4- phenylamino phenyl) 1 ~ 1.5 part of-Methacrylamide,
DCP0.7 ~ 0.9 part, cured 0.5 ~ 0.8 part of PE, EVA3 parts, 1 ~ 1.6 part of auxiliary agent.
2. the excellent LDPE graft copolymer of ageing-resistant performance according to claim 1, which is characterized in that the auxiliary agent choosing
From one of double Lauryl Alcohol esters, bi-myristoleyl or double octadecanol esters and bis- (3,5- three-level butyl -4- hydroxy benzenes
Base) thioether mixing.
3. the excellent LDPE graft copolymer of ageing-resistant performance according to claim 2, which is characterized in that the auxiliary agent by
One of double Lauryl Alcohol esters, bi-myristoleyl or double octadecanol esters are with mass ratio 2 ~ 3:1 ~ 2 and (3,5- three-level fourths
Base -4- hydroxy phenyl) thioether mixing, 10 ~ 20min of centrifugal mixer under centrifuge effect.
4. the method for preparing the excellent LDPE graft copolymer of ageing-resistant performance, which comprises the following steps:
(1) stand-by by each raw material of formula measurement；
(2) screw extruder is added in LDPE；
(3) when running in screw extruder to screw extruder length 5/12 as LDPE, at this into screw extruder
4- Thioglycolic acid aminodiphenylamine, N-(4- phenylamino phenyl is added)-Methacrylamide and DCP, and continue to run, to above-mentioned
When material is run to screw extruder length 5/8, PE cured, EVA and auxiliary agent is added into screw extruder at this, until plus
Enter material to squeeze out completely out of screw extruder.
5. the preparation method of the excellent LDPE graft copolymer of ageing-resistant performance according to claim 4, which is characterized in that institute
It states screw extruder and 12 thermotonus areas is divided into from inlet according to its length, 12 thermotonus section lengths are identical, temperature
Setting gradually is 140 ~ 150 DEG C, 150 ~ 160 DEG C, 160 ~ 170 DEG C, and 170 ~ 180 DEG C, 180 ~ 190 DEG C, 190 ~ 200 DEG C, 200 ~ 210
DEG C, 210 ~ 220 DEG C, 200 ~ 210 DEG C, 190 ~ 200 DEG C, 180 ~ 190 DEG C, 170 ~ 180 DEG C.
6. the preparation facilities of the LDPE graft copolymer excellent for ageing-resistant performance, is squeezed including the screw rod with cylindrical barrel
Machine out, which is characterized in that one end of the cylinder is equipped with No.1 loading hopper, and No. two are equipped on the cylinder of No.1 loading hopper side
Loading hopper, No. three loading hoppers, the spacing between No. two loading hoppers and No.1 loading hopper are the 5/12 of barrel lenght, described three
Spacing number between loading hopper and No.1 loading hopper is the 5/8 of barrel lenght.
7. the preparation facilities of the LDPE graft copolymer excellent for ageing-resistant performance according to claim 6, feature
It is, the diameter and length ratio of the cylinder are 1:48.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810950961.7A CN109280313A (en) | 2018-08-21 | 2018-08-21 | The excellent LDPE graft copolymer of ageing-resistant performance and preparation method thereof preparation facilities |
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| CN201810950961.7A CN109280313A (en) | 2018-08-21 | 2018-08-21 | The excellent LDPE graft copolymer of ageing-resistant performance and preparation method thereof preparation facilities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943892A (en) * | 2019-05-17 | 2020-11-17 | 上海中泽医药科技有限公司 | Histone deacetylase subtype inhibitor thioacetylarylamine compound and application thereof |
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| CN104448479A (en) * | 2014-11-24 | 2015-03-25 | 苏州市贝克生物科技有限公司 | Medical antibacterial agent modified LDPE and preparation method thereof |
| CN105153551A (en) * | 2015-09-17 | 2015-12-16 | 沈阳化工大学 | High-temperature-resistant EPDM (ethylene-propylene-diene monomer) sealing material |
| CN106715475A (en) * | 2014-09-12 | 2017-05-24 | 库珀轮胎和橡胶公司 | Oxidation resistant natural rubber and a method for its production |
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2018
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| CN106715475A (en) * | 2014-09-12 | 2017-05-24 | 库珀轮胎和橡胶公司 | Oxidation resistant natural rubber and a method for its production |
| CN104448479A (en) * | 2014-11-24 | 2015-03-25 | 苏州市贝克生物科技有限公司 | Medical antibacterial agent modified LDPE and preparation method thereof |
| CN105153551A (en) * | 2015-09-17 | 2015-12-16 | 沈阳化工大学 | High-temperature-resistant EPDM (ethylene-propylene-diene monomer) sealing material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943892A (en) * | 2019-05-17 | 2020-11-17 | 上海中泽医药科技有限公司 | Histone deacetylase subtype inhibitor thioacetylarylamine compound and application thereof |
| CN111943892B (en) * | 2019-05-17 | 2022-04-05 | 上海中泽医药科技有限公司 | Histone deacetylase subtype inhibitor thioacetylarylamine compound and application thereof |
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Application publication date: 20190129 |