CN110105622B - High-performance composite heat stabilizer - Google Patents
High-performance composite heat stabilizer Download PDFInfo
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- CN110105622B CN110105622B CN201910357483.3A CN201910357483A CN110105622B CN 110105622 B CN110105622 B CN 110105622B CN 201910357483 A CN201910357483 A CN 201910357483A CN 110105622 B CN110105622 B CN 110105622B
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- 239000012760 heat stabilizer Substances 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- FLAGIUJSXKJCOB-UHFFFAOYSA-N ethyl 5-amino-4-cyano-3-(2-ethoxy-2-oxoethyl)thiophene-2-carboxylate Chemical compound CCOC(=O)CC1=C(C(=O)OCC)SC(N)=C1C#N FLAGIUJSXKJCOB-UHFFFAOYSA-N 0.000 claims abstract description 46
- HYHZGBOWRWIEGW-UHFFFAOYSA-N 5-methoxycarbonylthiophene-2-carboxylic acid Chemical compound COC(=O)C1=CC=C(C(O)=O)S1 HYHZGBOWRWIEGW-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003381 stabilizer Substances 0.000 claims abstract description 27
- 159000000007 calcium salts Chemical class 0.000 claims abstract description 17
- 150000003751 zinc Chemical class 0.000 claims abstract description 15
- -1 2-ethoxy-2-oxoethyl Chemical group 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims abstract description 3
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 21
- 235000013539 calcium stearate Nutrition 0.000 claims description 21
- 239000008116 calcium stearate Substances 0.000 claims description 21
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006641 stabilisation Effects 0.000 abstract description 7
- 238000011105 stabilization Methods 0.000 abstract description 7
- 230000002195 synergetic effect Effects 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000004597 plastic additive Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 16
- 229920000915 polyvinyl chloride Polymers 0.000 description 13
- 239000004800 polyvinyl chloride Substances 0.000 description 13
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000006084 composite stabilizer Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013112 stability test Methods 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PYKWSBJYKVAEJS-UHFFFAOYSA-N formic acid;thiophene Chemical class OC=O.C=1C=CSC=1 PYKWSBJYKVAEJS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012430 stability testing Methods 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/45—Heterocyclic compounds having sulfur in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of plastic additives, and particularly discloses a high-performance composite heat stabilizer. The high-performance composite heat stabilizer comprises the following raw materials in parts by weight: 2-4 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1-2 parts of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 3-6 parts of a calcium salt or zinc salt stabilizer. The high-performance composite heat stabilizer is a composite heat stabilizer with brand new composition, and adopts the brand new discovered 2, 5-thiophene methyl diformate with heat stabilization effect, takes 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophene ethyl formate as a component, and simultaneously uses a calcium salt or zinc salt stabilizer in a matching way; the three components can generate synergistic thermal stabilization effect by combined use.
Description
Technical Field
The invention relates to the technical field of plastic additives, in particular to a high-performance composite heat stabilizer.
Background
The heat stabilizer is one of important classes in plastic processing aids, and is mainly used in PVC resin processing. The PVC resin starts to decompose at the vitrification temperature of 77-90 ℃ and about 170 ℃, has poor thermal stability, and can decompose to generate hydrogen chloride at the temperature of more than 100 ℃; therefore, a heat stabilizer must be added during the processing of the PVC resin.
Common PVC heat stabilizers include lead salt composite stabilizers, organotin stabilizers and calcium-zinc composite stabilizers. However, the lead salt composite stabilizer and the organic tin stabilizer have certain toxicity, while the calcium-zinc composite stabilizer is a good nontoxic stabilizer, has a thermal stabilization effect equivalent to that of the lead salt stabilizer, and is widely applied. In the field of plastic processing, the additive amount of the additive is as small as possible, so that the additive can be prevented from influencing the performance of the plastic; the development of high performance adjuvants is a continuing direction of research in the art. Therefore, in the technical field of heat stabilizers, on one hand, the variety of the heat stabilizers is widened, and on the other hand, the heat stability of the heat stabilizers is improved, so that the heat stabilizers have important significance for processing plastics.
Disclosure of Invention
The invention aims to solve the primary technical problem of providing the application of thiophene formate compounds in preparing stabilizers.
The invention aims to solve another technical problem of providing a high-performance composite heat stabilizer which has excellent heat stability.
The technical problem to be solved by the invention is realized by the following technical scheme:
the invention provides application of a thiophene formate compound as a PVC (polyvinyl chloride) heat stabilizer, wherein the thiophene formate compound is selected from 2, 5-thiophene methyl diformate and/or 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophene ethyl formate.
The first research of the invention shows that the two compounds of 2, 5-thiophenedicarboxylic acid methyl ester and 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester in the thiophenecarboxylic acid ester compound have better thermal stability; the thermal stability effect of the calcium zinc stabilizer is better than that of a calcium zinc stabilizer when the calcium zinc stabilizer is added into PVC plastics. The invention provides brand new applications of two compounds, namely 2, 5-thiophenedicarboxylic acid methyl ester and 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester, and widens the selection sources of the heat stabilizer.
Preferably, the thiophene formate compound is selected from methyl 2, 5-thiophenedicarboxylate and ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate; the weight usage ratio of the 2, 5-thiophenedicarboxylic acid methyl ester to the 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester is 2-4: 1.
most preferably, the weight ratio of the methyl 2, 5-thiophenedicarboxylate to the ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate is 3: 1.
the invention also provides a high-performance composite heat stabilizer which comprises methyl 2, 5-thiophenedicarboxylate, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and a calcium salt and/or zinc salt stabilizer.
Further research of the invention shows that 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium salt and/or zinc salt stabilizer are matched for use, and the mutual synergistic thermal stabilization effect is generated through the complementation between molecules, so that the thermal stabilizer with higher performance is obtained.
Preferably, the high-performance composite heat stabilizer comprises the following raw materials in parts by weight:
2-4 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1-2 parts of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
3-6 parts of a calcium salt or zinc salt stabilizer.
Most preferably, the high-performance composite heat stabilizer comprises the following raw materials in parts by weight:
3 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
4 parts of calcium salt or zinc salt stabilizer.
Preferably, the high-performance composite heat stabilizer comprises the following raw materials in parts by weight:
2-4 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1-2 parts of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
2-3 parts of a calcium salt stabilizer;
2-3 parts of a zinc salt stabilizer.
Most preferably, the high-performance composite heat stabilizer comprises the following raw materials in parts by weight:
3 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
2 parts of a calcium salt stabilizer;
2 parts of zinc salt stabilizer.
Preferably, the calcium salt is calcium stearate.
Preferably, the calcium salt is zinc stearate.
Has the advantages that: (1) the invention firstly provides brand new applications of two compounds, namely 2, 5-thiophenedicarboxylic acid methyl ester and 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester, and widens the selection sources of the heat stabilizer; (2) secondly, the invention provides a high-performance composite heat stabilizer with a brand new composition, wherein 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and a calcium salt and/or zinc salt stabilizer can generate a synergistic heat stabilizing effect, and further the high-performance composite heat stabilizer is obtained.
Detailed Description
The present invention is further explained below with reference to specific examples, which are not intended to limit the present invention in any way.
Example 1 preparation of high Performance composite Heat stabilizer
The components by weight portion are as follows: 3 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 4 parts of calcium stearate.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium stearate to obtain the high-performance composite heat stabilizer.
Example 2 preparation of high Performance composite Heat stabilizer
The components by weight portion are as follows: 2 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; and 3 parts of calcium stearate.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium stearate to obtain the high-performance composite heat stabilizer.
Example 3 preparation of high Performance composite Heat stabilizer
The components by weight portion are as follows: 4 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 6 parts of calcium stearate.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium stearate to obtain the high-performance composite heat stabilizer.
Example 4 preparation of high Performance composite Heat stabilizer
The components by weight portion are as follows: 3 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 4 parts of zinc stearate.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and zinc stearate to obtain the high-performance composite heat stabilizer.
EXAMPLE 5 preparation of high Performance composite Heat stabilizer
The components by weight portion are as follows: 3 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 2 parts of calcium stearate; and 2 parts of zinc stearate.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester, calcium stearate and zinc stearate to obtain the high-performance composite heat stabilizer.
Comparative example 1 preparation of composite Heat stabilizer
The components by weight portion are as follows: 3 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 4 parts of calcium stearate.
The preparation method comprises the following steps: and uniformly mixing 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium stearate to obtain the composite heat stabilizer.
Comparative example 2 preparation of composite Heat stabilizer
The components by weight portion are as follows: 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester; 4 parts of calcium stearate.
The preparation method comprises the following steps: and uniformly mixing 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester and calcium stearate to obtain the composite heat stabilizer.
Comparative example 3 preparation of composite Heat stabilizer
The components by weight portion are as follows: 3 parts of 2, 5-thiophenedicarboxylic acid methyl ester; 1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester.
The preparation method comprises the following steps: and uniformly mixing 2, 5-thiophenedicarboxylic acid methyl ester and 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester to obtain the composite heat stabilizer.
Example 6 thermal stability test
The high-performance composite heat stabilizer prepared in the examples 1-5, the composite heat stabilizer prepared in the comparative examples 1-3, 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester, calcium stearate, zinc stearate and PVC are mixed at a high speed of 1:99 ratio by weight for 3min, and then are fully plasticated on a plasticator at 180-190 ℃ to prepare a PVC material 1-12.
And (3) testing the static and dynamic thermal stability time of the PVC materials 1-12. The specific method comprises the following steps: static thermal stability testing was carried out at 190 ℃ according to the PVC thermal stability test method-Congo red method as specified in GB 2917-1982. The dynamic thermal stability test was performed at 190 ℃ according to the torque rheometer experiment. The test results are shown in table 1:
TABLE 1 thermal stability test results
As can be seen from the test data in Table 1, the static thermal stability time and the dynamic thermal stability time of 2, 5-thiophenedicarboxylic acid methyl ester and 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester are both higher than those of calcium stearate or zinc stearate. This demonstrates that methyl 2, 5-thiophenedicarboxylate and ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate have excellent heat stabilizing effects on PVC when used in PVC.
The static thermal stability time and the dynamic thermal stability time of the high-performance composite heat stabilizer prepared in the embodiments 1 to 5 are both more than 100, and the static thermal stability time and the dynamic thermal stability time are far longer than those of 2, 5-thiophenedicarboxylic acid methyl ester, 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester, calcium stearate or zinc stearate which are used alone. This shows that the combination of methyl 2, 5-thiophenedicarboxylate, ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate and calcium stearate or zinc stearate synergistically produces a heat stabilizing effect.
The heat stabilizing effect of the composite heat stabilizer prepared in comparative examples 1 to 3 did not produce a synergistic effect with that of methyl 2, 5-thiophenedicarboxylate, ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate or calcium stearate alone. This indicates that the combination of one of methyl 2, 5-thiophenedicarboxylate and ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate with calcium stearate does not result in a synergistic thermal stabilization; the combination of methyl 2, 5-thiophenedicarboxylate and ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate also failed to produce a synergistic thermal stabilization effect. Only when the methyl 2, 5-thiophenedicarboxylate, the ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate and the calcium stearate are used in combination at the same time can the thermal stabilization effect be synergistically produced.
Claims (10)
1. The application of the thiophene formate compound as a PVC heat stabilizer is characterized in that the thiophene formate compound is selected from 2, 5-thiophene methyl diformate and/or 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophene ethyl formate.
2. The use according to claim 1, wherein the thiophenecarboxylate compound is selected from the group consisting of methyl 2, 5-thiophenedicarboxylate and ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate; the weight usage ratio of the 2, 5-thiophenedicarboxylic acid methyl ester to the 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester is 2-4: 1.
3. the use according to claim 2, wherein the ratio by weight of methyl 2, 5-thiophenedicarboxylate to ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate is 3: 1.
4. the high-performance composite heat stabilizer is characterized by comprising methyl 2, 5-thiophenedicarboxylate, ethyl 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylate and a calcium salt stabilizer and/or a zinc salt stabilizer.
5. The high-performance composite heat stabilizer according to claim 4, characterized by comprising the following raw materials in parts by weight:
2-4 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1-2 parts of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
3-6 parts of a calcium salt or zinc salt stabilizer.
6. The high-performance composite heat stabilizer according to claim 5, characterized by comprising the following raw materials in parts by weight:
3 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
4 parts of calcium salt or zinc salt stabilizer.
7. The high-performance composite heat stabilizer according to claim 4, characterized by comprising the following raw materials in parts by weight:
2-4 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1-2 parts of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
2-3 parts of a calcium salt stabilizer;
2-3 parts of a zinc salt stabilizer.
8. The high-performance composite heat stabilizer according to claim 7, characterized by comprising the following raw materials in parts by weight:
3 parts of 2, 5-thiophenedicarboxylic acid methyl ester;
1 part of 5-amino-4-cyano-3- (2-ethoxy-2-oxoethyl) -2-thiophenecarboxylic acid ethyl ester;
2 parts of a calcium salt stabilizer;
2 parts of zinc salt stabilizer.
9. The high-performance composite heat stabilizer according to any one of claims 4 to 8, wherein the calcium salt is calcium stearate.
10. The high-performance composite heat stabilizer according to any one of claims 4 to 8, wherein the zinc salt is zinc stearate.
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| CN112457523A (en) * | 2020-12-18 | 2021-03-09 | 威海市正旺塑业有限公司 | High-stability and high-plasticity composite PVC (polyvinyl chloride) processing aid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3379677A (en) * | 1966-02-28 | 1968-04-23 | Koppers Co Inc | Ultraviolet light stabilizers for plastic materials |
| FR2638743B1 (en) * | 1988-11-08 | 1991-07-12 | Hoechst France | METHYL-2 TERTIOBUTYL-5 THIOPHENOL, ITS PREPARATION METHOD AND ITS APPLICATION |
| US7001979B2 (en) * | 2002-06-14 | 2006-02-21 | H.B. Fuller Licensing & Financing Inc. | Polyamide and composition and article including same |
| CN102391592B (en) * | 2011-07-29 | 2013-11-06 | 广东若天新材料科技有限公司 | Environmental-friendly calcium-zinc stabilizer for PVC (Polyvinyl Chloride) rolling film and preparation method thereof |
| CN103319454B (en) * | 2013-06-14 | 2014-06-18 | 广东众生药业股份有限公司 | Preparation method of high-purity tetraethyl ranelate and intermediate thereof |
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