CN109337016A - The technique of crosslinking side reaction is generated in a kind of control process of grafting - Google Patents
The technique of crosslinking side reaction is generated in a kind of control process of grafting Download PDFInfo
- Publication number
- CN109337016A CN109337016A CN201811187209.8A CN201811187209A CN109337016A CN 109337016 A CN109337016 A CN 109337016A CN 201811187209 A CN201811187209 A CN 201811187209A CN 109337016 A CN109337016 A CN 109337016A
- Authority
- CN
- China
- Prior art keywords
- reaction
- grafting
- side reaction
- technique
- crosslinking side
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention belongs to technical field of polymer materials, it is related to a kind of technique for controlling and generating crosslinking side reaction in process of grafting, it is characterized in that during melting graft reaction, the method that auxiliary agent is added by sequencing, the crosslinking side reaction occurred in skill reaction process is connect to control melting, the auxiliary agent includes initiator, polar group and cross-linked inhibitor.Initiator, polar group, cross-linked inhibitor is added by sequence in the present invention, connects the crosslinking side reaction occurred in skill reaction process to control melting, under conditions of raising connects skill rate, has efficiently controlled crosslinking side reaction.The maleic anhydride grafted polyethylene of the method for the present invention production improves the application effect of such polymer-function material, has widened application field because of grafting rate with higher.
Description
Technical field
The invention belongs to polymeric material fields, are related to a kind of extrusion fusion method graft reaction, produce a kind of containing polarized
The preparation process of the polymer-function material of group.
Background technique
Polyolefin resin is due to excellent hot property, mechanical property and processing performance, as resins for universal use application
Extensively.But the nonpolarity of polyolefin resin makes itself and polar material poor compatibility, causes its cementability, dyeability, hydrophilic
Property and all poor with the compatibility of organic and inorganic filler, limits the application of polyolefin resin.By to polyolefin
Resinoid carries out functional modification, and the bonding force between itself and other high molecular material, compatibility and dyeability can be improved,
The application range of polyolefin resin is widened.
Carrying out graft modification to polyolefin is one of the important means of in polyolefin resin functional modification.Maleic anhydride
Fusion-grafting polyethylene is a kind of polar common method of improvement polyethylene, however problem existing for melt grafting is polyethylene
Reaction can be crosslinked under the action of maleic anhydride and peroxide, this cross-linking reaction causes the viscosity of system significantly to increase
Add, mobile performance is deteriorated and squeezes out difficult.The additive or chain-transferring agent of certain electron riches are in maleic anhydride melt grafting process
In have well inhibit cross-linking reaction, thus greatly reduce the gel content of product.
Summary of the invention
The purpose of the present invention is initiator, polar group is added by the sequence of design requirement by the metered device of auxiliary agent
Group, electron rich additive or chain-transferring agent connect the crosslinking side reaction occurred in skill reaction process to control melting.
In order to achieve the above objectives: branch art scheme of the invention is as follows: generating crosslinking side reaction in control process of grafting
Technique, it is characterized in that during melting graft reaction, the method that auxiliary agent is added by sequencing connects skill to control melting
The crosslinking side reaction occurred in reaction process, the auxiliary agent include initiator, polar group and cross-linked inhibitor.
Generally, the technique that crosslinking side reaction is generated in above-mentioned control process of grafting, is in single screw rod extrusion reaction
The frit reaction section of plastic extruder presses the sequence of positions of metered device, while initiator, polar group and crosslinking is added
Inhibitor.
It further, is that second screw channel of frit reaction section, which rises, is successively respectively set three after feeding fluxing zone
Second metered device, second meter is arranged every two screw channels after first metered device in a metered device
Every two metered devices of screw channels setting third after amount adding apparatus.
It further, is that initiator is added by formula in first metered device, in second metered device
Polar group is added by formula, cross-linked inhibitor, three metered devices are added by formula in the metered device of third
It opens simultaneously.
The base resin that the melting connects skill reaction is polyolefin resin, selected from one of PE, POE, TPE resin or
Several combinations.
The polar group is selected from one or more of maleic anhydride, acrylic acid, methacrylic acid, methyl acrylate group
It closes.
The cross-linked inhibitor is electron rich additive or chain-transferring agent.
The initiator, cross-linked inhibitor are commonly used by the field, for example initiator can use DCP(peroxidating
Diisopropylbenzene (DIPB)), cross-linked inhibitor can use diphenyl phosphite.
The additive amount of the above-mentioned auxiliary agent of the present invention is also that can be formulated design according to actual needs known to the field.
Normally, the present invention is that single screw rod extrusion reaction plastic extruder first is added in the polyolefin resin that need to be modified
In hopper, plasticizing extrusion is carried out.Initiator is added by formula design in first metered device of frit reaction section, the
Polar group is added by formula design in two metered devices, and rich electricity is added by formula design in the metered device of third
Sub- additive or chain-transferring agent, to achieve the purpose that improve grafting rate, reduce or eliminate crosslinking side reaction.
Initiator, polar group, crosslinking suppression is added by the metered device of auxiliary agent, by the sequence of design requirement in the present invention
Preparation connects the crosslinking side reaction occurred in skill reaction process to control melting, under conditions of raising connects skill rate, efficiently controls
Crosslinking side reaction.The maleic anhydride grafted polyethylene of the method for the present invention production, because grafting rate with higher, improves this
The application effect of class polymer-function material, has widened application field.
Specific embodiment
The present invention is described in detail below with reference to embodiment.
Embodiment
The technique for generating crosslinking side reaction in process of grafting is controlled, first the polyolefin resin that need to be modified is added single
Screw Extrusion reacts in the hopper of plastic extruder, carries out plasticizing extrusion.
In embodiment, after feeding fluxing zone, second screw channel of frit reaction section, which rises, is successively respectively set three
Second metered device, second metering is arranged every two screw channels after first metered device in metered device
Every two metered devices of screw channel setting third after adding apparatus.
Initiator is added by formula in first metered device in embodiment, in second metered device by formula
Polar group is added, cross-linked inhibitor is added by formula in the metered device of third, three metered devices are opened simultaneously
It opens.Polymer-function material is made in reactive extrursion, tie rod, cooling, pelletizing.
Embodiment: maleic anhydride grafted polyethylene is formulated following (weight percentage):
LLDPE 100%；
DCP 0.8%；
Maleic anhydride 1.5%；
Diphenyl phosphite 1.0%.
Comparative example
The polyolefin resin that need to be modified and initiator, polar group, electron rich additive or chain-transferring agent while pouring into is stirred
After the machine of mixing mixes well, it is added in the hopper of single screw rod extrusion reaction plastic extruder, reactive extrursion, tie rod, cooling, pelletizing system
At.
Comparative example: maleic anhydride grafted polyethylene is formulated following (weight percentage):
LLDPE 100%；
DCP 0.8%；
Maleic anhydride 1.5%.
Diphenyl phosphite 1.0%.
The comparison of maleic anhydride grafted polyethylene experimental result data
Illustrate: melt flow rate (MFR) testing standard: GB3682；
Grafting rate=[M (V2-V1) × 98] × 100%/m (wherein M-oxalic acid molar concentration, V2-oxalic acid solution calibration
Volume consumed by 10Mlkoh- ethanol solution, V1-oxalic acid solution titrate volume consumed by graft, m-grafting purified
Quality)；
Gel content=(W3-W1) × 100%/(W2-W1) (the wherein quality of W1-copper mesh and baling line, after W2-loading sample
The quality for netting packet, nets the quality of packet after W3-extracting).
It can be seen that the present invention using by the metered device of auxiliary agent from above embodiments data comparison, wanted by design
Initiator, polar group, cross-linked inhibitor is added in the sequence asked, and connects the crosslinking occurred in skill reaction process pair instead to control melting
It answers, achieves good effect, under conditions of raising connects skill rate, efficiently controlled crosslinking side reaction.This method production
Maleic anhydride grafted polyethylene improve the application effect of such polymer-function material because of grafting rate with higher,
Application field is widened.
Claims (7)
1. the technique of crosslinking side reaction is generated in a kind of control process of grafting, it is characterized in that in melting graft reaction process
In, the method that auxiliary agent is added by sequencing connects the crosslinking side reaction occurred in skill reaction process to control melting, described to help
Agent includes initiator, polar group and cross-linked inhibitor.
2. the technique of crosslinking side reaction is generated in control process of grafting as described in claim 1, it is characterized in that in single screw rod
The frit reaction section of extrusion reaction plastic extruder presses the sequence of positions of metered device, while initiator, polar group is added
Group and cross-linked inhibitor.
3. the technique of crosslinking side reaction is generated in control process of grafting as claimed in claim 2, it is characterized in that moulding in charging
After changing section, second screw channel of frit reaction section, which rises, is successively respectively set three metered devices, and first metering adds
Enter and second metered device be set every two screw channels after device, every two screw channels settings the after second metered device
Three metered devices.
4. the technique of crosslinking side reaction is generated in control process of grafting as claimed in claim 3, it is characterized in that at first
Initiator is added by formula in metered device, polar group is added by formula in second metered device, in third
Cross-linked inhibitor is added by formula in metered device, and three metered devices are opened simultaneously.
5. the technique of crosslinking side reaction is generated in control process of grafting as described in claim 1, it is characterized in that melting connects skill
The base resin of reaction is polyolefin resin, selected from the combination of one or more of PE, POE, TPE resin.
6. the technique for generating crosslinking side reaction in process of grafting is controlled as described in claim 1,2 or 4, it is characterized in that described
Polar group is selected from the combination of one or more of maleic anhydride, acrylic acid, methacrylic acid, methyl acrylate resin.
7. the technique for generating crosslinking side reaction in process of grafting is controlled as described in claim 1,2 or 4, it is characterized in that crosslinking
Inhibitor is electron rich additive or chain-transferring agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187209.8A CN109337016B (en) | 2018-10-12 | 2018-10-12 | Process for controlling cross-linking side reaction generated in grafting reaction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187209.8A CN109337016B (en) | 2018-10-12 | 2018-10-12 | Process for controlling cross-linking side reaction generated in grafting reaction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109337016A true CN109337016A (en) | 2019-02-15 |
| CN109337016B CN109337016B (en) | 2021-04-06 |
Family
ID=65308899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187209.8A Active CN109337016B (en) | 2018-10-12 | 2018-10-12 | Process for controlling cross-linking side reaction generated in grafting reaction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109337016B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087848A (en) * | 2021-04-20 | 2021-07-09 | 南京棠城塑胶有限公司 | Preparation method of nylon/PP (polypropylene) co-extrusion composite bonding material |
| CN113136005A (en) * | 2021-04-20 | 2021-07-20 | 南京棠城塑胶有限公司 | Method for grafting maleic anhydride onto low molecular weight polyethylene |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674432A (en) * | 2016-12-31 | 2017-05-17 | 广州鹿山新材料股份有限公司 | Grafting reaction device and use method thereof |
| CN108192027A (en) * | 2017-12-21 | 2018-06-22 | 广州鹿山新材料股份有限公司 | A kind of polar polypropylene graft and preparation method thereof |
-
2018
- 2018-10-12 CN CN201811187209.8A patent/CN109337016B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674432A (en) * | 2016-12-31 | 2017-05-17 | 广州鹿山新材料股份有限公司 | Grafting reaction device and use method thereof |
| CN108192027A (en) * | 2017-12-21 | 2018-06-22 | 广州鹿山新材料股份有限公司 | A kind of polar polypropylene graft and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087848A (en) * | 2021-04-20 | 2021-07-09 | 南京棠城塑胶有限公司 | Preparation method of nylon/PP (polypropylene) co-extrusion composite bonding material |
| CN113136005A (en) * | 2021-04-20 | 2021-07-20 | 南京棠城塑胶有限公司 | Method for grafting maleic anhydride onto low molecular weight polyethylene |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109337016B (en) | 2021-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101423590B (en) | Method for preparing polypropylene/maleic anhydride melt grafting high condensing pre-mixed master batch | |
| CN101423589B (en) | Method for preparing polyethylene/maleic anhydride melt grafting high condensing pre-mixed master batch | |
| CN103540074B (en) | Compatilizer master batch for high filled polyolefin material and preparation method thereof | |
| CN109337016A (en) | The technique of crosslinking side reaction is generated in a kind of control process of grafting | |
| CN108192027A (en) | A kind of polar polypropylene graft and preparation method thereof | |
| CN106432614B (en) | A method of promoting polyolefin graft reaction | |
| CN113968939B (en) | Nylon toughening agent and preparation method and application thereof | |
| CN110041624A (en) | A kind of TPV material and its preparation method and application method | |
| EP2190885A2 (en) | Method for producing carboxylated ethylene polymer blends | |
| CN111825801B (en) | Toughening agent composition and preparation method thereof | |
| CN105504173B (en) | A kind of graft reaction method and its device | |
| CN101591416A (en) | A kind of high-efficiency environmental-friendly polypropylene compatilizer and preparation method thereof | |
| CN110041470B (en) | Functionalized olefin block copolymer antioxidant masterbatch and preparation method thereof | |
| CN108623893A (en) | The technique that one-time prilling method prepares toughening nylon plasticising master batch | |
| CN109880558B (en) | Preparation method of bonding resin composition for lithium battery soft packaging material | |
| CN109880445A (en) | A kind of high bonding force polyethylene powder coating and its preparation method and application | |
| CN105693936A (en) | Maleic anhydride grafted polypropylene composition and preparation method thereof | |
| CN111393784A (en) | Easily-dispersible high-interface-bonding-strength polyolefin filling master batch and preparation method thereof | |
| EP1030884A1 (en) | Polymeric blends based on polyolefins and polyamide resins | |
| CN104558425B (en) | Propylene-based elastomeric polymer of ultrasonic technology initiation grafting and preparation method thereof | |
| EP1196468B1 (en) | A method for the modification of polyolefins | |
| CN111825802B (en) | Ethylene oxide-octene copolymer composition and preparation method thereof | |
| CN104725846A (en) | New nylon-66 elastomer material with good flexibility | |
| CN104725838A (en) | Novel nylon 6 elastomer material with excellent flexibility | |
| CN101117372A (en) | High fondant-strength profax and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |