CN117362813B - Ammonia removal master batch for foaming and preparation method thereof - Google Patents
Ammonia removal master batch for foaming and preparation method thereof Download PDFInfo
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- CN117362813B CN117362813B CN202311458366.9A CN202311458366A CN117362813B CN 117362813 B CN117362813 B CN 117362813B CN 202311458366 A CN202311458366 A CN 202311458366A CN 117362813 B CN117362813 B CN 117362813B
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 207
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 102
- 238000005187 foaming Methods 0.000 title claims abstract description 50
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 38
- 239000003054 catalyst Substances 0.000 claims abstract description 28
- 239000006096 absorbing agent Substances 0.000 claims abstract description 26
- 239000004088 foaming agent Substances 0.000 claims abstract description 25
- 239000000806 elastomer Substances 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002250 absorbent Substances 0.000 claims abstract description 12
- 230000002745 absorbent Effects 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000003801 milling Methods 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims description 3
- 229920005604 random copolymer Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007935 neutral effect Effects 0.000 abstract description 5
- 150000001879 copper Chemical class 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000126 substance Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000004604 Blowing Agent Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229960000892 attapulgite Drugs 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical group NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 229910052625 palygorskite Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 2
- ULUZGMIUTMRARO-UHFFFAOYSA-N (carbamoylamino)urea Chemical compound NC(=O)NNC(N)=O ULUZGMIUTMRARO-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- DHAHRLDIUIPTCJ-UHFFFAOYSA-K aluminium metaphosphate Chemical compound [Al+3].[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O DHAHRLDIUIPTCJ-UHFFFAOYSA-K 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention relates to the technical field of ammonia removal of foaming materials, in particular to an ammonia removal master batch for foaming and a preparation method, wherein the ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts of total weight of the components in the ammonia removal master batch for foaming: an elastomeric substrate: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst: 10-25 parts of a lubricant; ammonia inhibitor: 10-18 parts; water absorbing agent: 1-6 parts of ammonia inhibitor and water absorbent are evenly mixed, and then calcined to remove residual water, and then cooled; after cooling, ball milling and then sand milling are carried out, or air milling is carried out, and then fine powder is obtained after grinding; the fine powder, azo foaming agent and elastomer base material are stirred evenly physically, and then extruded and granulated through a single screw rod and a double screw rod to obtain ammonia removal master batch for foaming. The selected copper salt is neutral and has no acid etching effect on the product.
Description
Technical Field
The invention relates to the technical field of ammonia removal of foaming materials, in particular to ammonia removal master batch for foaming and a preparation method thereof.
Background
Ammonia gas is generated during the decomposition of azodicarbonamide (AC blowing agent) and is released continuously over time during storage in the foamed product, creating a hazard to consumer health. The prior ammonia remover thought is mainly divided into two types of adding physical adsorbent and neutralizing acidic substances. The physical adsorption is usually zeolite, hydrotalcite (such as Chinese patent CN 113717426B), mesoporous molecular sieve (SBA-15, MCM-41 or ZSM-35, etc., such as Chinese patent CN 114058062B), attapulgite, calcite, white carbon black, etc. (such as Chinese patent CN 102093592B). Although physical adsorption can obviously reduce the ammonia content passing detection index after the product is foamed, the gas adsorbed subsequently can be released continuously, and the problem can not be solved fundamentally.
Another type of ammonia removal scheme is to use acidic or weakly acidic inorganics to adsorb and neutralize the ammonia gas produced. For example, (Chinese patent CN 109401019A) discloses a special ammonia-taste-free foaming agent master batch for LDPE high foaming and a preparation method thereof, wherein citric acid, calcium chloride, aluminum tripolyphosphate or aluminum dihydrogen tripolyphosphate and the like are adopted as ammonia removing agents. (chinese patent CN 112250976B) -high-concentration ammonia-removing cake and its use, a combination of aluminum chloride, aluminum metaphosphate and citric acid is used, also neutralized by acidic substances. In addition, (Chinese patent CN 102093592B) firstly uses hydrochloric acid solution to treat porous material attapulgite, zeolite, calcite, white carbon black and the like, so that the porous material is used after adsorbing a certain amount of hydrochloric acid, and the effect of combining the two methods is achieved. However, neutralization by adding acidic substances often requires a slight excess of acidic substances, while excessive acidic substances remain in the foamed product, which tends to accelerate product aging, reduce physical properties and product life.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming:
an elastomeric substrate: 15-55 parts;
azo-based foaming agent: 25-45 parts;
catalyst: 10-25 parts of a lubricant;
ammonia inhibitor: 10-18 parts;
water absorbing agent: 1-6 parts;
wherein the ammonia inhibitor is copper salt.
As a further scheme of the invention: the elastomer base material is selected from one or more of ethylene-polyvinyl acetate copolymer and ethylene-octyl random copolymer.
As a further scheme of the invention: the catalyst is one or more selected from zinc oxide and zinc stearate.
As a further scheme of the invention: the ammonia inhibitor is one or more selected from copper sulfate and copper chloride.
As a further scheme of the invention: the water absorbent is selected from one or more of montmorillonite powder and zeolite.
The invention also provides a preparation method of the ammonia removal master batch for foaming, which has the following technical scheme:
the ammonia inhibitor and the water absorbent are evenly mixed, calcined for 1-2 hours at 200 ℃, residual moisture is removed, then cooled, ground into fine powder, and the fine powder, azo foaming agent, catalyst and elastomer base material are evenly stirred physically, extruded and granulated at 100 ℃ through a single screw and a double screw, so as to obtain the ammonia removal master batch for foaming.
As a further scheme of the invention: the fine powder is prepared by ball milling and sand milling, the ball milling time is 0.5-2 h, and the sand milling time is 0.5-2 h.
As a further scheme of the invention: fine powder is prepared by air flow grinding, the air flow speed is 300-500 m/s, and the powder is crushed for 2-3 times under the pressure of 1 MPa.
As a further scheme of the invention: the granulation cooling mode is air cooling.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, neutral copper salt is used as an ammonia inhibitor, and is complexed with an intermediate of ammonia generated in the decomposition process of the AC foaming agent, so that the generation of ammonia is prevented, meanwhile, the influence of excessive neutral metal salt on the performance of a product is smaller, and no irritant substance is generated in the processing process to harm the health of production personnel.
2. The invention improves the characteristic of easy water absorption of ammonia inhibitor, adds a small amount of microporous material to absorb high-temperature water vapor, and improves the defects of products.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a process flow diagram of a process for preparing ammonia removal master batch for foaming according to the present invention.
Fig. 2 is an exploded path diagram of an AC blowing agent.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The raw materials used in the examples and comparative examples are as follows:
elastomer substrate a: ethylene-polyvinyl acetate copolymer, table plastic 7470M;
elastomer substrate B: ethylene-octyl random copolymer, sha Bike C0570D;
azo-based foaming agent: azodicarbonamide, AC blowing agent;
catalyst A: zinc oxide;
catalyst B: zinc stearate;
catalyst C: a complex of zinc oxide and zinc stearate;
ammonia inhibitor a: copper sulfate;
ammonia inhibitor B: copper chloride;
water-absorbing agent a: montmorillonite powder;
water-absorbing agent B: zeolite powder;
water-absorbing agent C: a powdered molecular sieve;
referring to fig. 1, the blowing agent master batches of the following examples and comparative examples were obtained by the following preparation method, comprising the steps of:
and uniformly mixing the ammonia inhibitor and the water absorbent, and calcining at 200 ℃ for 1-2 hours to remove residual water. Ball milling is carried out firstly after cooling, then sand milling is carried out, the ball milling time is 0.5-2 h, and the sand milling time is 0.5-2 h; or air milling, crushing for 2-3 times at the air flow speed of 300-500 m/s and the pressure of 1MPa to obtain fine powder, physically stirring the fine powder, an azo foaming agent, a catalyst and an elastomer base material uniformly, extruding and granulating at 100 ℃ through a single screw and a double screw, and cooling by air to obtain the ammonia removal master batch for foaming.
Example 1
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst A: 10-25 parts of a lubricant; ammonia inhibitor a: 10-18 parts; water-absorbing agent a: 0-6 parts.
Example 2
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a: 20-40 parts; azo-based foaming agent: 30-40 parts; catalyst A: 15-20 parts; ammonia inhibitor a: 12-16 parts; water-absorbing agent a: 0-4 parts.
Example 3
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate B: 20-40 parts; azo-based foaming agent: 30-40 parts; catalyst B: 15-20 parts; ammonia inhibitor B: 12-16 parts; water-absorbing agent B: 0-4 parts.
Example 4
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a:35 parts; azo-based foaming agent: 34 parts; catalyst C:17 parts; ammonia inhibitor a:13 parts; water-absorbing agent C:1 part.
Example 5
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate B:30 parts; azo-based foaming agent: 30 parts; catalyst C:20 parts; ammonia inhibitor a:16 parts; water-absorbing agent C:4 parts.
Comparative example 1
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a or elastomer substrate B: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst A: 10-25 parts of a lubricant; ammonia inhibitor a or ammonia inhibitor B:0 parts; water-absorbing agent a, water-absorbing agent B or water-absorbing agent C:0 parts.
Comparative example 2
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a or elastomer substrate B: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst B: 10-25 parts of a lubricant; ammonia inhibitor a or ammonia inhibitor B:0 parts; water-absorbing agent a, water-absorbing agent B or water-absorbing agent C:0 parts.
Comparative example 3
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a or elastomer substrate B: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst C: 10-25 parts of a lubricant; ammonia inhibitor a or ammonia inhibitor B:0 parts; water-absorbing agent a, water-absorbing agent B or water-absorbing agent C:0 parts.
Comparative example 4
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a or elastomer substrate B: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst a, catalyst B or catalyst C: 10-25 parts of a lubricant; ammonia inhibitor a or ammonia inhibitor B: 10-18 parts; water-absorbing agent a, water-absorbing agent B or water-absorbing agent C:0 parts.
Comparative example 5
The ammonia removal master batch for foaming comprises the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming: elastomer substrate a or elastomer substrate B: 15-55 parts; azo-based foaming agent: 25-45 parts; catalyst a, catalyst B or catalyst C: 10-25 parts of a lubricant; ammonia inhibitor a or ammonia inhibitor B:0 parts; water-absorbing agent a, water-absorbing agent B or water-absorbing agent C: 1-6 parts.
| Ammonia content | Pinhole condition | |
| Example 1 | ≤50ppm | Without any means for |
| Example 2 | ≤50ppm | Without any means for |
| Example 3 | ≤50ppm | Without any means for |
| Example 4 | 50ppm | Without any means for |
| Example 5 | <10ppm | Without any means for |
| Comparative example 1 | >600ppm | Has the following components |
| Comparative example 2 | 200ppm | Has the following components |
| Comparative example 3 | >600ppm | Has the following components |
| Comparative example 4 | <50ppm | Has the following components |
| Comparative example 5 | ≥200ppm | Without any means for |
Table 1 data for examples 1 to 5 and comparative examples 1 to 5
Referring to Table 1, a total of 200g of raw materials including 15% of foaming agent master batch, 3% of cross-linking agent and 82% of EVA base material are weighed according to a proportion, are put into a foaming mold after being evenly mixed by open mill, are hot-pressed for 600s at 175 ℃, and are opened to obtain a foaming sheet. After the sheet is placed in the air for 12 hours to be stable, the sheet is diced and placed in a self-sealing bag for storage for 1 hour, and then the ammonia content in the bag is detected.
Using a sample of catalyst A without ammonia inhibitor and water absorbent, the ammonia content was >600ppm;
using a catalyst B, and not adding ammonia inhibitor and water absorbent sample, wherein the ammonia content is 200ppm;
using catalyst C, without ammonia inhibitor and water absorbent sample, ammonia content >600ppm;
adding ammonia inhibitor A or B, wherein the proportion is 40% of the AC foaming agent, and the ammonia content is less than 10ppm;
adding ammonia inhibitor A or B, wherein the proportion is 33% of the AC foaming agent, and the ammonia content is 50ppm;
the product has more pinholes, the ammonia content and the two conditions are not different (coarse pores formed by steam foaming are defects of the product).
Only the water absorbent is added, no ammonia inhibitor is added, physical adsorption effect can be achieved, and ammonia concentration is slightly reduced. The larger the addition amount of the water absorbent is, the better the effect is, but according to the addition amount of the invention, the maximum addition amount of ammonia gas content is still more than or equal to 200ppm.
Simultaneously, ammonia inhibitor and water absorbent are added, so that the ammonia removal effect can be achieved, and the product has no pinholes.
According to the invention, neutral copper salt is used as an ammonia inhibitor, and is complexed with an intermediate (biurea and urea) which can generate ammonia in the decomposition process of the AC foaming agent, so that the generation of ammonia is prevented, meanwhile, the influence of excessive neutral metal salt on the performance of a product is smaller, and no irritant substance is generated in the processing process to harm the health of production personnel.
The decomposition path of the AC foaming agent is shown in FIG. 2, and copper ions mainly undergo complexation reaction with substances on the left side of the reaction formulae (3) and (4).
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The ammonia removal master batch for foaming is characterized by comprising the following components in parts by weight based on 100 parts by weight of the total weight of the components in the ammonia removal master batch for foaming:
an elastomeric substrate: 15-55 parts;
azo-based foaming agent: 25-45 parts;
catalyst: 10-25 parts of a lubricant;
ammonia inhibitor: 10-18 parts;
water absorbing agent: 1-6 parts;
wherein the ammonia inhibitor is copper salt.
2. The ammonia removal master batch for foaming according to claim 1, wherein: the elastomer base material is selected from one or more of ethylene-polyvinyl acetate copolymer and ethylene-octyl random copolymer.
3. The ammonia removal master batch for foaming according to claim 1, wherein: the catalyst is one or more selected from zinc oxide and zinc stearate.
4. The ammonia removal master batch for foaming according to claim 1, wherein: the ammonia inhibitor is one or more selected from copper sulfate and copper chloride.
5. The ammonia removal master batch for foaming according to claim 1, wherein: the water absorbent is selected from one or more of montmorillonite powder and zeolite.
6. A process for the preparation of ammonia removal master batch for foaming according to claim 1, wherein:
the ammonia inhibitor and the water absorbent are evenly mixed, calcined for 1-2 hours at 200 ℃, residual moisture is removed, then cooled, ground into fine powder, and the fine powder, azo foaming agent, catalyst and elastomer base material are evenly stirred physically, extruded and granulated at 100 ℃ through a single screw and a double screw, so as to obtain the ammonia removal master batch for foaming.
7. The method for preparing ammonia removal master batch for foaming according to claim 6, wherein the method comprises the following steps: the fine powder is prepared by ball milling and sand milling, the ball milling time is 0.5-2 h, and the sand milling time is 0.5-2 h.
8. The method for preparing ammonia removal master batch for foaming according to claim 6, wherein the method comprises the following steps: fine powder is prepared by air flow grinding, the air flow speed is 300-500 m/s, and the powder is crushed for 2-3 times under the pressure of 1 MPa.
9. The method for preparing ammonia removal master batch for foaming according to claim 6, wherein the method comprises the following steps: the granulation cooling mode is air cooling.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824196A (en) * | 2010-04-16 | 2010-09-08 | 三斯达(福建)塑胶有限公司 | Novel foam material |
| JP2015043868A (en) * | 2013-08-28 | 2015-03-12 | Ｊｆｅミネラル株式会社 | Agent for inhibiting generation of ammonia gas, and method for inhibiting generation of ammonia gas |
| CN109401019A (en) * | 2018-11-07 | 2019-03-01 | 江苏索普化工股份有限公司 | A kind of dedicated no ammonia taste foaming agent master batch of LDPE high-foaming and preparation method thereof |
| CN110240729A (en) * | 2019-07-17 | 2019-09-17 | 晋江成昌鞋业有限公司 | EVA foaming is with removing ammonia agent and preparation method thereof |
| CN113231009A (en) * | 2021-05-27 | 2021-08-10 | 上海国瓷新材料技术有限公司 | Ammonia adsorbent and preparation method thereof |
| CN113717426A (en) * | 2021-09-03 | 2021-11-30 | 山东日科化学股份有限公司 | Ammonia-free foaming agent and polyvinyl chloride foaming material |
| CN113999423A (en) * | 2021-07-27 | 2022-02-01 | 浙江杰上杰新材料股份有限公司 | Ammonia-free environment-friendly azodicarbonamide foaming agent and preparation method thereof |
| CN114058062A (en) * | 2021-10-18 | 2022-02-18 | 武汉金发科技有限公司 | Foaming agent master batch and preparation method and application thereof |
-
2023
- 2023-11-03 CN CN202311458366.9A patent/CN117362813B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824196A (en) * | 2010-04-16 | 2010-09-08 | 三斯达(福建)塑胶有限公司 | Novel foam material |
| JP2015043868A (en) * | 2013-08-28 | 2015-03-12 | Ｊｆｅミネラル株式会社 | Agent for inhibiting generation of ammonia gas, and method for inhibiting generation of ammonia gas |
| CN109401019A (en) * | 2018-11-07 | 2019-03-01 | 江苏索普化工股份有限公司 | A kind of dedicated no ammonia taste foaming agent master batch of LDPE high-foaming and preparation method thereof |
| CN110240729A (en) * | 2019-07-17 | 2019-09-17 | 晋江成昌鞋业有限公司 | EVA foaming is with removing ammonia agent and preparation method thereof |
| CN113231009A (en) * | 2021-05-27 | 2021-08-10 | 上海国瓷新材料技术有限公司 | Ammonia adsorbent and preparation method thereof |
| CN113999423A (en) * | 2021-07-27 | 2022-02-01 | 浙江杰上杰新材料股份有限公司 | Ammonia-free environment-friendly azodicarbonamide foaming agent and preparation method thereof |
| CN113717426A (en) * | 2021-09-03 | 2021-11-30 | 山东日科化学股份有限公司 | Ammonia-free foaming agent and polyvinyl chloride foaming material |
| CN114058062A (en) * | 2021-10-18 | 2022-02-18 | 武汉金发科技有限公司 | Foaming agent master batch and preparation method and application thereof |
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