CN109265597A - A kind of low cost polymethacrylimide plastic foam and preparation method thereof - Google Patents
A kind of low cost polymethacrylimide plastic foam and preparation method thereof Download PDFInfo
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- CN109265597A CN109265597A CN201810754451.2A CN201810754451A CN109265597A CN 109265597 A CN109265597 A CN 109265597A CN 201810754451 A CN201810754451 A CN 201810754451A CN 109265597 A CN109265597 A CN 109265597A
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- plastic foam
- acrylonitrile
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- methacrylic acid
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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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to a kind of inexpensive polymethacrylimide plastic foams and preparation method thereof.The foamed plastics is acrylonitrile/methacrylonitrile/methacrylic acid copolymer polymethacrylimide plastic foam for substituting methylpropenyl with acrylonitrile portion to prepare on the basis of methacrylonitrile/methacrylic acid foamed plastics is developed.Preparation method is that initiator, crosslinking agent, foaming agent and nucleating agent etc. is added, obtains polymer matrices resin through free-radical polymerized using acrylonitrile, methacrylonitrile and methacrylic acid as monomer, using obtaining polymethacrylimide plastic foam after foaming.The addition of acrylonitrile reduces the cost of polymethacrylimide plastic foam.
Description
Technical field
The present invention relates to foam applications more particularly to a kind of inexpensive polymethacrylimide plastic foam and its
Preparation method.
Background technique
Polymethacrylimide (PMI) foamed plastics is the rigid foam of a kind of lightweight, closed pore, and abscess is
100% hole-closing structure, the hole wall structure of homogeneous cross-link and the material distribution of hole wall coideal make it have structure outstanding
Stability and brilliant mechanical property.PMI foamed plastics and traditional polyurethane (PU) and polyvinyl chloride (PVC) rigid foam
It compares, PMI foam compares under conditions of equal densities with superior than mechanical performance, the strength and stiffness of PMI foam
It is highest in all foams.Therefore it is widely used in many fields, suitable application area includes aerospace, railway machine
Vehicle, ship, radome, sports equipment and wind-power electricity generation etc..PMI foamed plastics at present, the price is very expensive, needs one kind
The PMI foam manufacturing processes of excellent combination property, and its production cost is reduced, to meet the country to high-performance PMI foam
The demand that plastics are increasingly urgent to simultaneously for abundant domestic foamed plastics kind, improves domestic high-performance sandwich composite wood
The research of material and application level have great importance.
Summary of the invention
It is an object of the invention to overcome the shortcomings of the prior art, a kind of inexpensive Polymethacrylimide is provided
Foamed plastics and preparation method thereof.
To achieve the above object, this invention takes technical solutions below:
A kind of low cost polymethacrylimide plastic foam, it is characterised in that the foamed plastics is in metering system
On the basis of nitrile/methacrylic acid foamed plastics is developed, acrylonitrile/first for substituting methacrylonitrile with acrylonitrile portion to prepare
Base acrylonitrile/methacrylic acid copolymer polymethacrylimide plastic foam.
The preparation method of the inexpensive polymethacrylimide plastic foam, with acrylonitrile, methacrylonitrile and
Methacrylic acid is monomer, and initiator, crosslinking agent, foaming agent and nucleating agent etc. is added, obtains copolymer matrix through free-radical polymerized
Body resin, using obtaining polymethacrylimide plastic foam after foaming.
The inexpensive polymethacrylimide plastic foam, it is characterised in that by acrylonitrile-methacrylonitrile-first
Base acrylic acid passes through ternary polymerization, is made through high temperature imidizate, wherein acrylonitrile 10-30 parts, 10-30 parts of methacrylonitrile,
40-60 parts of methacrylic acid.
The preparation method of a kind of inexpensive polymethacrylimide plastic foam, it is characterised in that described draws
Hair agent is the one or more of the organic azo compound that can be generated free radicals or organic peroxide, preferably peroxide pivalic acid
The tert-butyl ester, dibenzoyl peroxide, azodiisobutyronitrile, t-butyl peroxybenzoate etc..
A kind of preparation method of inexpensive polymethacrylimide plastic foam, it is characterised in that the friendship
Connection agent is divinylbenzene, divinyl Benzophenone, divinyl glycosides, diacrylate, magnesia, zinc oxide, dimethyl allene
Sour glycol ester, allyl acrylate, allyl methacrylate, magnesinm methacrylate, zinc methacrylate or methyl-prop
One of olefin(e) acid calcium is a variety of.
A kind of preparation method of inexpensive polymethacrylimide plastic foam, it is characterised in that the hair
Infusion is cycloalkane, urea, the monomethyl of the aliphatic alcohol of 2-9 carbon atom, the alkane of 5-9 carbon atom, 5-9 carbon atom
One of urea, tetramethylurea, tetrahydrofuran, formamide, acetic acid, formic acid, dimethyl urea, ethylenediamine are a variety of.
A kind of preparation method of described inexpensive polymethacrylimide plastic foam, it is characterised in that it is described at
Core agent is Tert-butyl Methacrylate, carbamide etc..
The mass parts of above-mentioned each raw material are as follows:
Acrylonitrile 10-30；
Methacrylonitrile 10-30；
The preparation method of the inexpensive polymethacrylimide plastic foam, with acrylonitrile, methacrylonitrile and
Methacrylic acid is monomer, and initiator, crosslinking agent, foaming agent and nucleating agent etc. is added, obtains copolymer matrix through free-radical polymerized
Body resin, using obtaining polymethacrylimide plastic foam after foaming.
The inexpensive polymethacrylimide plastic foam, it is characterised in that by acrylonitrile-methacrylonitrile-first
Base acrylic acid passes through ternary polymerization, is made through high temperature imidizate, wherein acrylonitrile 10-30 parts, 10-30 parts of methacrylonitrile,
40-60 parts of methacrylic acid.
The preparation method of a kind of inexpensive polymethacrylimide plastic foam, it is characterised in that described draws
Hair agent is the one or more of the organic azo compound that can be generated free radicals or organic peroxide, preferably peroxide pivalic acid
The tert-butyl ester, dibenzoyl peroxide, azodiisobutyronitrile, t-butyl peroxybenzoate etc..
A kind of preparation method of inexpensive polymethacrylimide plastic foam, it is characterised in that the friendship
Connection agent is divinylbenzene, divinyl Benzophenone, divinyl glycosides, diacrylate, magnesia, zinc oxide, dimethyl allene
Sour glycol ester, allyl acrylate, allyl methacrylate, magnesinm methacrylate, zinc methacrylate or methyl-prop
One of olefin(e) acid calcium is a variety of.
A kind of preparation method of inexpensive polymethacrylimide plastic foam, it is characterised in that the hair
Infusion is cycloalkane, urea, the monomethyl of the aliphatic alcohol of 2-9 carbon atom, the alkane of 5-9 carbon atom, 5-9 carbon atom
One of urea, tetramethylurea, tetrahydrofuran, formamide, acetic acid, formic acid, dimethyl urea, ethylenediamine are a variety of.
A kind of preparation method of described inexpensive polymethacrylimide plastic foam, it is characterised in that it is described at
Core agent is Tert-butyl Methacrylate, carbamide etc..
The mass parts of above-mentioned each raw material are as follows:
Compared with prior art, the invention has the following beneficial effects:
(1) cheap acrylonitrile is introduced in traditional PMI foamed plastics system, is total to through free-radical polymerized
Copolymer matrix resin can greatly save cost using polymethacrylimide plastic foam is obtained after foaming.
(2) different from the additional proportion of methacrylonitrile according to acrylonitrile, it is high that a series of cost performance can be prepared
PMI foamed plastics enriches the type of foamed plastics, meets the different market demands.
(3) addition of acrylonitrile can reduce reaction temperature, reduces energy consumption, is conducive to economize on resources.
Specific embodiment
Combined with specific embodiments below, further description of the specific embodiments of the present invention.Following embodiment is only used
In illustrating the present invention, it is not intended to limit protection scope of the present invention.
Embodiment 1
By 20 parts of acrylonitrile, 30 parts of methacrylonitriles, 50 parts of acrylic acid, 10 parts of formamides, 5 parts of dibenzoyl peroxides
With 5 parts of peroxidating pivalic acid tert-butyl esters, 5 parts of isopropanols, sequentially adds in three-necked flask, under nitrogen protection, be stirred at room temperature 2
After hour, it is transferred in the sealing system of 2 pieces of glass plates and seal frame composition, before taking out foam after 40 DEG C of 12h, 80 DEG C of 12h
Precursor copolymer resin plate is driven, 185 DEG C of 1h in baking oven, obtaining density is 85Kg/m3Polymethacrylimide foam modeling
Material.
Claims (9)
1. a kind of low cost polymethacrylimide plastic foam, it is characterised in that the foamed plastics is in metering system
On the basis of nitrile/methacrylic acid foamed plastics is developed, acrylonitrile/first for substituting methacrylonitrile with acrylonitrile portion to prepare
Base acrylonitrile/methacrylic acid copolymer polymethacrylimide plastic foam.
2. low cost polymethacrylimide plastic foam according to claim 1, it is characterised in that by acrylonitrile-first
Base acrylonitrile-methacylate passes through ternary polymerization, is made through high temperature imidizate, wherein acrylonitrile 10-30 parts, metering system
10-30 parts of nitrile, 40-60 parts of methacrylic acid.
3. a kind of preparation method of low cost polymethacrylimide plastic foam, it is characterised in that with acrylonitrile, methyl-prop
Alkene nitrile and methacrylic acid are monomer, and initiator, crosslinking agent, foaming agent and nucleating agent etc. is added, is total to through free-radical polymerized
Copolymer matrix resin, using obtaining polymethacrylimide plastic foam after foaming.
4. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, described
The mass ratio of acrylonitrile, methacrylonitrile and methacrylic acid monomer is (10-30): (10-30): (40-60).
5. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, feature
It is that the initiator is the one or more of the organic azo compound that can be generated free radicals or organic peroxide, it is excellent
Select the peroxide pivalic acid tert-butyl ester, dibenzoyl peroxide, azodiisobutyronitrile, t-butyl peroxybenzoate etc..
6. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, feature
It is that the crosslinking agent is divinylbenzene, divinyl Benzophenone, divinyl glycosides, diacrylate, magnesia, oxidation
Zinc, ethylene glycol dimethacrylate, allyl acrylate, allyl methacrylate, magnesinm methacrylate, methacrylic acid
One of zinc or methacrylic acid calcium are a variety of.
7. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, feature
It is that the foaming agent is the cycloalkanes of the aliphatic alcohol of 2-9 carbon atom, the alkane of 5-9 carbon atom, 5-9 carbon atom
One of hydrocarbon, urea, monomethyl urea, tetramethylurea, tetrahydrofuran, formamide, acetic acid, formic acid, dimethyl urea, ethylenediamine are more
Kind.
8. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, feature
It is that the nucleating agent is Tert-butyl Methacrylate, carbamide etc..
9. a kind of preparation method of inexpensive polymethacrylimide plastic foam according to claim 3, feature
It is to obtain polymer matrices resin through free-radical polymerized, using obtaining polymethacrylimide plastic foam after foaming.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810754451.2A CN109265597A (en) | 2018-06-29 | 2018-06-29 | A kind of low cost polymethacrylimide plastic foam and preparation method thereof |
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| CN201810754451.2A CN109265597A (en) | 2018-06-29 | 2018-06-29 | A kind of low cost polymethacrylimide plastic foam and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380941A (en) * | 2022-01-17 | 2022-04-22 | 山东天复新材料有限公司 | Low-moisture-absorption-rate polymethacrylimide foam and preparation method thereof |
| CN116554388A (en) * | 2023-05-31 | 2023-08-08 | 保定美沃工程材料科技有限公司 | Ultra-high temperature resistant PMI foamed plastic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051012A (en) * | 2010-11-30 | 2011-05-11 | 长沙科成高分子材料有限公司 | Whisker modified polymethacrylimide foamed plastic and preparation method thereof |
| CN103627021A (en) * | 2013-12-12 | 2014-03-12 | 扬州恒聚新材料有限责任公司 | Preparation method of polymethacrylimide foam |
| RU2013114180A (en) * | 2010-08-31 | 2014-10-10 | Эвоник Рем ГмбХ | POLYMETACRYLIMIDE (PMI) FOAM PLASTICS WITH IMPROVED MECHANICAL PROPERTIES, IN PARTICULAR, WITH AN INCREASED elongation at break |
-
2018
- 2018-06-29 CN CN201810754451.2A patent/CN109265597A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2013114180A (en) * | 2010-08-31 | 2014-10-10 | Эвоник Рем ГмбХ | POLYMETACRYLIMIDE (PMI) FOAM PLASTICS WITH IMPROVED MECHANICAL PROPERTIES, IN PARTICULAR, WITH AN INCREASED elongation at break |
| CN102051012A (en) * | 2010-11-30 | 2011-05-11 | 长沙科成高分子材料有限公司 | Whisker modified polymethacrylimide foamed plastic and preparation method thereof |
| CN103627021A (en) * | 2013-12-12 | 2014-03-12 | 扬州恒聚新材料有限责任公司 | Preparation method of polymethacrylimide foam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380941A (en) * | 2022-01-17 | 2022-04-22 | 山东天复新材料有限公司 | Low-moisture-absorption-rate polymethacrylimide foam and preparation method thereof |
| CN116554388A (en) * | 2023-05-31 | 2023-08-08 | 保定美沃工程材料科技有限公司 | Ultra-high temperature resistant PMI foamed plastic |
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Application publication date: 20190125 |