CN104262876B - Polyvinyl acetate esters resin modified antioxidant and preparation method thereof - Google Patents
Polyvinyl acetate esters resin modified antioxidant and preparation method thereof Download PDFInfo
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- acetate esters
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- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 43
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 43
- 150000001242 acetic acid derivatives Chemical class 0.000 title claims abstract description 19
- 229920002689 polyvinyl acetate Polymers 0.000 title claims abstract description 19
- 239000011118 polyvinyl acetate Substances 0.000 title claims abstract description 19
- 229920005989 resin Polymers 0.000 title claims abstract description 19
- 239000011347 resin Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003463 adsorbent Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 9
- 239000000194 fatty acid Substances 0.000 claims abstract description 9
- 229930195729 fatty acid Natural products 0.000 claims abstract description 9
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 20
- 239000003513 alkali Substances 0.000 claims description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 6
- 231100000252 nontoxic Toxicity 0.000 claims description 5
- 230000003000 nontoxic effect Effects 0.000 claims description 5
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 5
- 150000008301 phosphite esters Chemical class 0.000 claims description 5
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 4
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000021314 Palmitic acid Nutrition 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 3
- 235000011009 potassium phosphates Nutrition 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 239000000839 emulsion Substances 0.000 abstract description 24
- 238000007254 oxidation reaction Methods 0.000 abstract description 14
- 230000003647 oxidation Effects 0.000 abstract description 13
- 239000006057 Non-nutritive feed additive Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000032683 aging Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- ACOGMWBDRJJKNB-UHFFFAOYSA-N acetic acid;ethene Chemical group C=C.CC(O)=O ACOGMWBDRJJKNB-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention belongs to polyvinyl acetate esters resin processing aid field, be specifically related to modified antioxidant of a kind of polyvinyl acetate esters resin and preparation method thereof.It is made up of the raw material of following mass fraction: fatty acid 100 parts, 250 300 parts of water, dispersant 0.01 0.1 parts, alkaline matter 20 26 parts, 35 parts of antioxidant and adsorbent 0.25 0.35 parts.Good emulsion stability of the present invention, stability is high, and oxidation resistance is strong, being greatly improved oxidation resistance in processing aid dry run, solve the problems such as oxidation resistance is not enough during post-production uses, the present invention also provides for its preparation method, preparation technology is simple, and operating cost is cheap.
Description
Technical field
The invention belongs to polyvinyl acetate esters resin processing aid field, be specifically related to a kind of polyvinyl acetate esters tree
Fat modified antioxidant and preparation method thereof.
Background technology
Igelite is as the important materials in daily life, and its application is constantly widened, but macromolecular material
The most natural or synthesis, the most easily there is oxidation reaction, make material fade, yellowing, harden, chap, loss of gloss or
Transparency etc., and then cause being greatly reduced of the physical properties such as impact strength, anti-flexing intensity, tensile strength and percentage elongation,
Affect the normal use of plastic.Delaying the measure of high polymer Oxidation at present, the most suitable has: improve high polymer
Chemical constitution, stabilized treatment alive that active end group is disappeared and interpolation antioxidant etc..Wherein, adding antioxidant is that high polymer is stable
Change processes the method for simple general-purpose.Antioxidant be suppression or delay high polymer by oxygen in air or ozonization adding of degrading
Add agent, be most widely used auxiliary agent in plastics.
Antioxidant has the strongest high-temperature oxidation resistance, has in igelite processing aid field and can not be substituted
Pivotal role.Such as polyvinyl-chloride use MBS resin, owing to using the special material such as butadiene, styrene to be polymerized, it is being dried
During, ageing-resistant ability is substantially not enough and the phenomenons such as variable color of turning to be yellow occurs.But use merely common process to add antioxidant,
Due to antioxidant poorly water-soluble, it is difficult to be dispersed in water-based emulsion, it is impossible to well play the high-temperature oxidation resistant of antioxidant
Ability.And after emulsion cooling, lamination easily occurs, cause unnecessary waste.This problem same exists in acetic acid
Ethylene is in the polyvinyl chloride processing aid of body material synthesis, cannot owing to there is the acetic acid composition of residual in vinyl acetate
Remove.Having a strong impact on dry link, easily occur reddening under product high temperature yellowing.
Summary of the invention
It is an object of the invention to provide the modified antioxidant of a kind of polyvinyl acetate esters resin, emulsion dispersion is effective,
Stability is high, and oxidation resistance is strong, is greatly improved oxidation resistance in processing aid dry run, solves post-production and used
The problems such as in journey oxidation resistance is not enough, the present invention also provides for its preparation method, and preparation technology is simple, and operating cost is cheap.
The modified antioxidant of polyvinyl acetate esters resin of the present invention, is made up of the raw material of following mass fraction:
Fatty acid 100 parts, water 250-300 part, dispersant 0.01-0.1 part, alkaline matter 20-26 part, antioxidant 3-5 part and adsorbent
0.25-0.35 part.
The modified antioxidant of described polyvinyl acetate esters resin uses emulsion process to prepare.
Fatty acid is that one or more in stearic acid, oleic acid or palmitic acid mix with arbitrary proportion.By 100 parts of fatty acids
Siccative inventory calculates.
Dispersant be in sodium lauryl sulphate or dodecylbenzene sodium sulfonate one or both with arbitrary proportion mix,
The mass fraction preferably 0.075 part that dispersant adds.
Alkaline matter is that one or both in potassium hydroxide, sodium hydroxide, sodium carbonate, potassium phosphate or sodium phosphate are with arbitrarily
Ratio mixes, the mass fraction preferably 25 parts that alkaline matter adds.
Antioxidant be in the nontoxic phosphite ester in antioxidant 1010, antioxidant 1076 or 8601 one or more with arbitrarily than
Example mixes, the mass fraction preferably 3.5 parts that antioxidant adds.
Adsorbent be in nano zine oxide or nano calcium oxide one or both with arbitrary proportion mix, adsorbent add
Mass fraction be 0.30 part.
The present invention also provides for the preparation method of the modified antioxidant of polyvinyl acetate esters resin, comprises the following steps:
Fatty acid, water and dispersant are added reaction unit, stirring, is warming up to 80 DEG C-85 DEG C, insulation, it is subsequently adding alkali
Liquid, stirring, add adsorbent and antioxidant, be cooled to 40-60 DEG C, with dilute hydrochloric acid regulation pH between 8-9, discharging, obtain
Modified antioxidant.
The preparation method of the modified antioxidant of described polyvinyl acetate esters resin, preferably following steps:
Fatty acid, water and dispersant are added reaction unit, under the mixing speed of 50-300r/min, stir 20-45min,
It is warming up to 80 DEG C-85 DEG C, is incubated 2-3h, add alkali liquor, stir 0.5-1.5h, add adsorbent and antioxidant, be cooled to 40-60
DEG C, with dilute hydrochloric acid regulation pH between 8-9, discharging, obtain modified antioxidant.
Wherein:
Described alkali liquor is that alkaline matter adds water and is configured to.
Compared with prior art, the invention have the advantages that
(1) present invention is effectively dispersed in soap surface under emulsification, with soap as carrier, by antioxidant
Forming the modified antioxidant of stable dispersion, dispersion effect is good；
(2) Heat stability is good of the present invention, is not affected by emulsion temperature, and ageing resistance is strong；It is effectively improved high temperature drying, adds
The heat stability of poly-(vinyl acetate-acrylic butyl ester-methyl methacrylate) ter-polymer resin and anti-during work
Aging ability；Effectively solve the processing aid containing vinyl acetate monomer to add at RPVC sheet material, section bar, tubing etc.
Work goods ageing-resistant performance and the jaundice of heat stability deficiency redden the phenomenons such as blackening；
(3) preparation technology of the present invention is simple, with low cost, efficiency is high.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
First stearic acid 100 parts, 250 parts of water, sodium lauryl sulphate 0.01 part are added reaction unit, at 50r/min
Mixing speed under stir 20min, then heat to 80 DEG C, be incubated 2h, be slowly added to alkali liquor, after stirring 0.5h, add nanometer
Zinc oxide 0.25 part, antioxidant 1076 3.5 parts, be cooled to 40 DEG C, regulate pH=8, discharging with dilute hydrochloric acid.
Described alkali liquor is that potassium hydroxide 20 parts is formulated with 225 parts of water.
Embodiment 2
First stearic acid 100 parts, 300 parts of water, sodium lauryl sulphate 0.1 part are added reaction unit, at 100r/min
Mixing speed under stir 30min, then heat to 82 DEG C, be incubated 2.5h, be slowly added to alkali liquor, after stirring 1h, add nanometer
Zinc oxide 0.35 part, antioxidant 1076 5.0 parts, be cooled to 45 DEG C, regulate pH=8.5, discharging with dilute hydrochloric acid.
Described alkali liquor is that potassium hydroxide 26 parts is formulated with 225 parts of water.
Embodiment 3
First oleic acid 100 parts, 300 parts of water, dodecylbenzene sodium sulfonate 0.1 part are added reaction unit, 150r/min's
Stir 35min under mixing speed, then heat to 83 DEG C, be incubated 3h, be slowly added to alkali liquor, after stirring 1.5h, add nano oxygen
Change calcium 0.35 part, antioxidant 1010 3.5 parts, be cooled to 50 DEG C, regulate pH=8.7, discharging with dilute hydrochloric acid.
Described alkali liquor is that sodium hydroxide 20 parts is formulated with 225 parts of water.
Embodiment 4
First palmitic acid 100 parts, 280 parts of water, dodecylbenzene sodium sulfonate 0.075 part are added reaction unit, at 200r/
Stir 40min under the mixing speed of min, then heat to 80 DEG C, be incubated 2h, be slowly added to alkali liquor, after stirring 1h, add nanometer
Calcium oxide 0.30 part, 8601 nontoxic phosphite ester 3.5 parts, be cooled to 55 DEG C, regulate pH=8.6, discharging with dilute hydrochloric acid.
Described alkali liquor is that sodium phosphate 26 parts is formulated with 225 parts of water.
Embodiment 5
First stearic acid 100 parts, 280 parts of water, dodecylbenzene sodium sulfonate 0.075 part are added reaction unit, at 300r/
Stir 45min under the mixing speed of min, then heat to 85 DEG C, be incubated 2.5h, be slowly added to alkali liquor, add after stirring 0.5h
Nano zine oxide 0.30 part, 8601 nontoxic phosphite ester 4.0 parts, be cooled to 60 DEG C, regulate pH=9.0, discharging with dilute hydrochloric acid.
Described alkali liquor is that potassium phosphate 25 parts is formulated with 225 parts of water.
Contrast test:
Each 2 parts of modified antioxidant above example 1-5 prepared is added separately to venamul 100 parts
In, stir 10min, survey oxidation resistance in stability of emulsion and dry run.Tables 1 and 2 is shown in properties test.
Comparative example 1
Antioxidant 1010 2 parts is joined in venamul 100 parts, stir 10min, survey stability of emulsion
And oxidation resistance in dry run.Tables 1 and 2 is shown in properties test.
Comparative example 2
Antioxidant 1076 2 parts is joined in venamul 100 parts, stir 10min, survey stability of emulsion
And oxidation resistance in dry run.Tables 1 and 2 is shown in properties test.
Comparative example 3
8601 nontoxic phosphite ester 2 parts is joined in venamul 100 parts, stirs 10min, survey emulsion steady
Oxidation resistance in qualitative and dry run.Tables 1 and 2 is shown in properties test.
Table 1 is to compare emulsion intercalation method.
Table 1 emulsion intercalation method energy
| Numbering | 80 DEG C of emulsions | 50 DEG C of emulsions | 30 DEG C of emulsions | 10 DEG C of emulsions |
| Embodiment 1 | ||||
| Embodiment 2 | ||||
| Embodiment 3 | ||||
| Embodiment 4 | ||||
| Embodiment 5 | ||||
| Comparative example 1 | ☆☆ | ☆☆☆ | Floating upper strata | |
| Comparative example 2 | ☆☆ | ☆☆☆ | Floating upper strata | |
| Comparative example 3 | ☆☆ | ☆☆☆ | ☆☆☆ |
Wherein, to represent emulsion-stabilizing performance the best more, and ☆, and to represent emulsion-stabilizing performance the poorest.
Being analyzed by table 1 and draw, antioxidant composition the most easily separates out, and swims in emulsion surface, it is impossible to rise
To antioxidation.After using modified antioxidant, stability of emulsion is not affected by emulsion temperature.
Table 2 is that the ageing-resistant performance to emulsion compares, and after emulsion dries moisture removal naturally, grind into powder is put into
Baking oven is tested, temperature 180 DEG C.
The ageing-resistant performance of table 2 emulsion
| Numbering | 0min | 5min | 10min | 15min | 20min | 30min |
| Embodiment 1 | ☆ |
| Embodiment 2 | ☆ | |||||
| Embodiment 3 | ☆ | |||||
| Embodiment 4 | ☆ | |||||
| Embodiment 5 | ☆ | |||||
| Comparative example 1 | ☆ | ☆☆ | ☆☆☆ | Turn yellow | Redden | |
| Comparative example 2 | ☆ | ☆☆ | ☆☆☆ | Turn yellow | ||
| Comparative example 3 | ☆ | ☆☆☆ | Turn yellow |
Wherein, the ageing-resistant performances representing emulsion the best more, and ☆, and to represent the ageing-resistant performance of emulsion the poorest.
Being analyzed from table 2, when oven temperature is at 180 DEG C, it is not it is obvious that use that antioxidant plays a role in emulsion
Modified antioxidant ageing-resistant performance significantly improves, and the flavescence time substantially delays.
Claims (8)
1. a polyvinyl acetate esters resin modification antioxidant, it is characterised in that: it is made up of the raw material of following mass fraction:
Fatty acid 100 parts, water 250-300 part, dispersant 0.01-0.1 part, alkaline matter 20-26 part, antioxidant 3-5 part and adsorbent
0.25-0.35 part；
Dispersant be in sodium lauryl sulphate or dodecylbenzene sodium sulfonate one or both with arbitrary proportion mix；
Adsorbent be in nano zine oxide or nano calcium oxide one or both with arbitrary proportion mix.
The modified antioxidant of polyvinyl acetate esters resin the most according to claim 1, it is characterised in that: fatty acid is hard
One or more in fat acid, oleic acid or palmitic acid mix with arbitrary proportion.
The modified antioxidant of polyvinyl acetate esters resin the most according to claim 1, it is characterised in that: dispersant adds
Mass fraction be 0.075 part.
The modified antioxidant of polyvinyl acetate esters resin the most according to claim 1, it is characterised in that: alkaline matter is
One or both in potassium hydroxide, sodium hydroxide, sodium carbonate, potassium phosphate or sodium phosphate mix with arbitrary proportion, alkaline matter
The mass fraction added is 25 parts.
The modified antioxidant of polyvinyl acetate esters resin the most according to claim 1, it is characterised in that: antioxidant is anti-
One or more in the nontoxic phosphite ester in oxygen agent 1010, antioxidant 1076 or 8601 mix with arbitrary proportion, and antioxidant adds
Mass fraction be 3.5 parts.
The modified antioxidant of polyvinyl acetate esters resin the most according to claim 1, it is characterised in that: adsorbent adds
Mass fraction be 0.30 part.
7. a preparation method for the modified antioxidant of the arbitrary described polyvinyl acetate esters resin of claim 1-6, it is special
Levy and be: comprise the following steps:
Fatty acid, water and dispersant are added reaction unit, stirring, is warming up to 80 DEG C-85 DEG C, insulation, it is subsequently adding alkali liquor, stirs
Mix, add adsorbent and antioxidant, be cooled to 40-60 DEG C, with dilute hydrochloric acid regulation pH between 8-9, discharging, obtain modified anti-
Oxygen agent.
The preparation method of the modified antioxidant of polyvinyl acetate esters resin the most according to claim 7, it is characterised in that:
Described alkali liquor is that alkaline matter adds water and is configured to.
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|---|---|---|---|
| CN201410546729.9A CN104262876B (en) | 2014-10-15 | 2014-10-15 | Polyvinyl acetate esters resin modified antioxidant and preparation method thereof |
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| CN104262876B true CN104262876B (en) | 2016-12-07 |
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| KR20100024280A (en) * | 2008-08-25 | 2010-03-05 | 신원화학 주식회사 | Method of synthesizing hydrotalcite and stibilizer using the hydrotalcite |
| CN101514301B (en) * | 2008-12-30 | 2012-07-18 | 上海东升新材料有限公司 | Fatty acid salt lubricant, preparation and application thereof |
| JP5468297B2 (en) * | 2009-05-08 | 2014-04-09 | シェブロンジャパン株式会社 | Lubricating oil composition |
| CN103351562B (en) * | 2013-07-25 | 2015-04-01 | 山东世拓高分子材料股份有限公司 | Multicomponent polymer for rigid polyvinyl chloride and preparation method of multicomponent polymer |
| CN103788281A (en) * | 2014-03-05 | 2014-05-14 | 山东世拓化学科技有限公司 | Core-shell structure processing agent for rigid polyvinyl chloride and synthetic method thereof |
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