CN114940779A - Environment-friendly PVC transparent calcium-zinc heat stabilizer - Google Patents
Environment-friendly PVC transparent calcium-zinc heat stabilizer Download PDFInfo
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- CN114940779A CN114940779A CN202210455665.6A CN202210455665A CN114940779A CN 114940779 A CN114940779 A CN 114940779A CN 202210455665 A CN202210455665 A CN 202210455665A CN 114940779 A CN114940779 A CN 114940779A
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- heat stabilizer
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- 239000012760 heat stabilizer Substances 0.000 title claims abstract description 43
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 21
- 239000003963 antioxidant agent Substances 0.000 claims description 18
- 230000003078 antioxidant effect Effects 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 18
- 239000003381 stabilizer Substances 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000011363 dried mixture Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 abstract 1
- 239000003899 bactericide agent Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 description 28
- 229920000915 polyvinyl chloride Polymers 0.000 description 27
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004597 plastic additive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- 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
- C08K5/07—Aldehydes; Ketones
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/30—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by oxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an environment-friendly PVC transparent calcium zinc heat stabilizer which comprises 30-40% of pigment dispersion liquid, 35-40% of resin, 10-30% of wetting agent, 1.5-2.0% of surfactant and 0.1-0.2% of bactericide. The environment-friendly PVC transparent calcium-zinc heat stabilizer has printing fluency on all Epson nozzles, good standby performance, high fastness and bright color, and can form a film well on various media; the Nissan VINYBLAN 701 is preferably selected, so that the stability and the film-forming property of the ink are better improved; preferably, CHALINE E-790 is used to better promote film formation and scrub resistance.
Description
Technical Field
The invention relates to the technical field of color latex ink, in particular to an environment-friendly PVC transparent calcium zinc heat stabilizer.
Background
In the processing of polyvinyl chloride (PVC) plastic products, a PVC heat stabilizer is an indispensable plastic additive, and the PVC heat stabilizer is added for improving the thermal stability of PVC and inhibiting HCI gas from being released from the PVC due to the action of heat in the processing process, and once HCI is released, the degradation of the PVC is accelerated, so that the physical and mechanical properties are reduced. PVC heat stabilizers are various in types, and the existing PVC heat stabilizers are basically divided into three types: lead heat stabilizer, calcium-zinc heat stabilizer, organic tin heat stabilizer, etc. Since the lead-based stabilizer contains heavy metals, harmful plastic additives are listed in the state, and the state regulates the use of PVC part plastic products from 7 months to 1 day in 2017. Although the existing calcium-zinc heat stabilizer can be environment-friendly and nontoxic, the existing calcium-zinc heat stabilizer is only limited to be used in PVC opaque products due to large particle size and poor heat stability, so that the addition amount is high, the transparency of the product is influenced, the existing heat stabilizer used in PVC transparent products is still an organic tin heat stabilizer, the organic tin heat stabilizer has the advantages of high heat stability, high transparency and low addition amount, but has the defect of high price, contains harmful substances and pungent odor, and can cause great harm to the health of human bodies, European Union countries control the organic tin heat stabilizer, the countries also make harmful substance limitation on partial PVC products, and particularly forbid the use of the organic tin heat stabilizer in the fields of food sanitation and medical instruments.
Therefore, the invention provides an environment-friendly PVC transparent calcium-zinc heat stabilizer.
Disclosure of Invention
The invention aims to provide an environment-friendly PVC transparent calcium zinc heat stabilizer to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly PVC transparent calcium zinc heat stabilizer consists of the following components;
the anti-oxidation catalyst comprises, by weight, Znst 15-20%, Cast 10-15%, LDHS 40-45%, cyc 2%, pentaerythritol 2%, CAA 2%, an antioxidant 2%, SBM 5% and OPE wax 10-20%.
Preferably, the stabilizer consists of the following components:
znst 15%, Cast 10%, LDHS 40%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 10%.
Preferably, the stabilizer consists of the following components:
znst 18%, Cast 13%, LDHS 43%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 15%.
Preferably, the stabilizer consists of the following components:
znst 20%, Cast 15%, LDHS 45%, cyc 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 20%.
Preferably, the materials are all materials after high-pressure reaction.
The preparation steps of the stabilizer are as follows:
s10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
Compared with the prior art, the environment-friendly PVC transparent calcium zinc heat stabilizer has the beneficial effects that: the raw materials are subjected to high-pressure reaction treatment, and then are subjected to water-method grinding and superfine grinding, so that the particle size of each particle is 3-5 micrometers, the surface area of the material is increased, the larger the surface area of the material is, the higher the thermal stability is, the lower the addition amount of the calcium-zinc heat stabilizer is, and the higher the transparency of the PVC transparent product is only when the addition amount of the calcium-zinc heat stabilizer is lower.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides a technical scheme that: an environment-friendly PVC transparent calcium-zinc heat stabilizer consists of the following components;
the anti-oxidation catalyst comprises, by weight, Znst 15-20%, Cast 10-15%, LDHS 40-45%, cyc 2%, pentaerythritol 2%, CAA 2%, an antioxidant 2%, SBM 5% and OPE wax 10-20%.
The materials are all materials after high-pressure reaction.
The preparation steps of the stabilizer are as follows:
s10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
Example two:
an environment-friendly PVC transparent calcium-zinc heat stabilizer consists of the following components;
znst 15%, Cast 10%, LDHS 40%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 10%.
The materials are all materials after high-pressure reaction.
The preparation steps of the stabilizer are as follows:
s10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
EXAMPLE III
An environment-friendly PVC transparent calcium-zinc heat stabilizer consists of the following components;
znst 18%, Cast 13%, LDHS 43%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 15%.
The materials are all materials after high-pressure reaction.
The preparation steps of the stabilizer are as follows:
s10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
Example four
An environment-friendly PVC transparent calcium-zinc heat stabilizer consists of the following components;
znst 20%, Cast 15%, LDHS 45%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 20%.
S10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
The heat stability of the environment-friendly PVC transparent calcium-zinc heat stabilizer is compared with that of an organic tin heat stabilizer:
1. the test formula is as follows: PVC 50; DOP 28; 0.6 of transparent calcium and zinc; hst 0.2;
PVC 50; DOP 28; 0.6 parts of organic tin; hst 0.2;
2. test equipment: a hap torque rheometer;
3. the test conditions are as follows: heating the mixture in a 1 region at 160 ℃; heating the 2 region to 160 ℃; heating the 3 region to 160 ℃; the rotating speed is 50 r/min;
4. dynamic thermal stability tests are respectively carried out on two PVC heat stabilizers under the same conditions by adopting a torque rheometer
The results describe:
the transparent calcium-zinc heat stabilizer has the advantages that the plasticization of materials in the processing process is slightly faster than that of an organic tin heat stabilizer, the balance torque is low and stable, the dynamic heat stabilization time is 2h53min, and the materials begin to decompose in 3h02 min;
the organic tin heat stabilizer has good plasticization of materials in the processing process, stable balance torque, 3h04min dynamic heat stabilization time and 3h13min decomposition start.
The specification shows that the PVC heat stabilizer can meet the processing requirement when the heat stabilization time reaches 90min in the plastic product processing process
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (6)
1. An environment-friendly PVC transparent calcium zinc heat stabilizer is characterized in that the heat stabilizer consists of the following components;
the anti-oxidation catalyst comprises, by weight, Znst 15-20%, Cast 10-15%, LDHS 40-45%, cyc 2%, pentaerythritol 2%, CAA 2%, an antioxidant 2%, SBM 5% and OPE wax 10-20%.
2. The environment-friendly PVC transparent calcium-zinc heat stabilizer according to claim 1, characterized in that: the stabilizer consists of the following components:
znst 15%, Cast 10%, LDHS 40%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 10%.
3. The environment-friendly PVC transparent calcium-zinc heat stabilizer according to claim 1, characterized in that: the stabilizer consists of the following components:
znst 18%, Cast 13%, LDHS 43%, cyc 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 15%.
4. The environment-friendly PVC transparent calcium-zinc heat stabilizer according to claim 1, characterized in that: the stabilizer consists of the following components:
znst 20%, Cast 15%, LDHS 45%, cyco 2%, pentaerythritol 2%, CAA 2%, antioxidant 2%, SBM 5% and OPE wax 20%.
5. The environment-friendly PVC transparent calcium-zinc heat stabilizer according to any one of claims 1 to 4, characterized in that: the materials are all materials after high-pressure reaction.
6. The environment-friendly PVC transparent calcium-zinc heat stabilizer according to any one of claims 1 to 4, characterized in that: the preparation steps of the stabilizer are as follows:
s10: preparing raw materials, and carrying out high-pressure treatment on the raw materials;
s20, putting Znst, Cast, LDH, mosaic, pentaerythritol, CAA and an antioxidant into a mixing container in proportion, and uniformly mixing to obtain a mixed mixture I;
s30: putting the mixture I obtained in the step S20 into a grinder for grinding and ultra-fining;
s40, dehydrating and drying the material ground in the step S30 to obtain a dried mixture II;
s50: sieving the mixture II obtained in the step S40 to obtain a mixture III;
and S60, adding SBM and OPE wax into the mixture III according to the proportion, and then uniformly mixing in a mixer to obtain the stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210455665.6A CN114940779A (en) | 2022-04-24 | 2022-04-24 | Environment-friendly PVC transparent calcium-zinc heat stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210455665.6A CN114940779A (en) | 2022-04-24 | 2022-04-24 | Environment-friendly PVC transparent calcium-zinc heat stabilizer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004099391A (en) * | 2002-09-11 | 2004-04-02 | Mizusawa Ind Chem Ltd | Method of manufacturing layered double hydroxide |
| CN1590437A (en) * | 2004-04-29 | 2005-03-09 | 北京化工大学 | Hgdrotalcite base chlorine containing high polymer composite heat stabilizing agent |
| CN103540048A (en) * | 2012-07-18 | 2014-01-29 | 苏州朗创化工有限公司 | PVC (Polyvinyl Chloride) heat stabilizer with long heat stability time |
| US20160177065A1 (en) * | 2008-04-01 | 2016-06-23 | Dae Hee Lee | Hydrotalcite for p.v.c. stabilizer and a method of thereof |
| CN110698867A (en) * | 2019-09-28 | 2020-01-17 | 浙江杰上杰新材料有限公司 | Preparation method of calcium-zinc stabilizer for shoe material |
-
2022
- 2022-04-24 CN CN202210455665.6A patent/CN114940779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004099391A (en) * | 2002-09-11 | 2004-04-02 | Mizusawa Ind Chem Ltd | Method of manufacturing layered double hydroxide |
| CN1590437A (en) * | 2004-04-29 | 2005-03-09 | 北京化工大学 | Hgdrotalcite base chlorine containing high polymer composite heat stabilizing agent |
| US20160177065A1 (en) * | 2008-04-01 | 2016-06-23 | Dae Hee Lee | Hydrotalcite for p.v.c. stabilizer and a method of thereof |
| CN103540048A (en) * | 2012-07-18 | 2014-01-29 | 苏州朗创化工有限公司 | PVC (Polyvinyl Chloride) heat stabilizer with long heat stability time |
| CN110698867A (en) * | 2019-09-28 | 2020-01-17 | 浙江杰上杰新材料有限公司 | Preparation method of calcium-zinc stabilizer for shoe material |
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Application publication date: 20220826 |