CN111763388A - Powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride resin and preparation method thereof - Google Patents
Powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride resin and preparation method thereof Download PDFInfo
- Publication number
- CN111763388A CN111763388A CN201910258870.1A CN201910258870A CN111763388A CN 111763388 A CN111763388 A CN 111763388A CN 201910258870 A CN201910258870 A CN 201910258870A CN 111763388 A CN111763388 A CN 111763388A
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- CN
- China
- Prior art keywords
- heat stabilizer
- composite heat
- polyvinyl chloride
- zinc composite
- powdery calcium
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- 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
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- 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
- C08K5/09—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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3462—Six-membered rings
-
- 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
Abstract
The invention provides a powdery calcium-zinc composite heat stabilizer for emulsion polyvinyl chloride resin, which has the following optimal formula: is prepared from zinc stearate (48 + -3%), pentaerythritol (16 + -1%), uracil (4 + -0.5%), hydrotalcite (8 + -0.5%) and calcium carbonate (24 + -1%). The preparation method comprises the following steps: selecting a normal temperature and normal pressure composite process, respectively crushing the selected raw materials into micro powder, weighing the raw materials according to the proportion of the formula, and uniformly compounding at normal temperature and normal pressure to obtain the powdery calcium-zinc composite heat stabilizer (powder CZ for short). Has the advantages that: the powdery calcium-zinc composite heat stabilizer for the emulsion polyvinyl chloride resin has excellent heat stability, no three wastes and no toxicity and environmental protection; simple production method and no need of solvent.
Description
Technical Field
The invention relates to the field of polyvinyl chloride (PVC) heat stabilizers, in particular to a powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride (EPVC) resin and a preparation method thereof.
Background
Currently, polyvinyl chloride (PVC) resin is a widely used plastic. The universality is good and the price is low; PVC polymerized by vinyl chloride monomer CH2= CHCl, is a heat-sensitive material, can be degraded and discolored when being heated to more than or equal to 100 ℃, and is degraded and discolored more quickly when the temperature is higher, so that the molecular weight and the strength of the PVC are reduced sharply until the PVC loses value by changing from white to black (or from light to dark). Therefore, about 1-5% of heat stabilizer is required to be added to PVC to prevent the PVC from degrading, discoloring and deteriorating at high temperature. The heat stabilizer is very important for PVC processing, various PVC products cannot be manufactured without the heat stabilizer, the PVC heat stabilizer in the current market has a complex production process and strict time and temperature control requirements during use.
Disclosure of Invention
Aiming at solving the problems, the invention provides a novel environment-friendly powdery calcium-zinc composite heat stabilizer for polyvinyl chloride resin with excellent performance and a preparation method thereof by adjusting and optimizing the compounding ratio and the synergistic effect of zinc stearate and several auxiliary agents aiming at the defects of the existing composite stabilizer for PVC paste resin.
The specific technical scheme of the invention is realized as follows: the invention provides a powdery calcium-zinc composite heat stabilizer for emulsion polyvinyl chloride (EPVC), which has the following optimal formula: is prepared from zinc stearate (48 + -3%), pentaerythritol (16 + -1%), uracil (4 + -0.5%), hydrotalcite (8 + -0.5%) and calcium carbonate (24 + -1%).
The preparation method comprises the following steps: selecting a normal temperature and pressure composite process, respectively crushing the selected raw materials into micro powder (fully enlarging the specific surface and improving the dispersion performance), weighing the raw materials according to the formula, and uniformly mixing at normal temperature and normal pressure to obtain the powdery calcium-zinc composite heat stabilizer (powder CZ for short). The process comprises the following steps:
crushing at normal temperature → weighing → mixing and compounding at normal temperature → powdered CZ
Has the advantages that: the powdery calcium-zinc composite heat stabilizer for emulsion polyvinyl chloride (EPVC) resin provided by the invention has excellent heat stability, and has the characteristics of no need of solvent, simple and convenient production, no three wastes, no toxicity, environmental protection, simple and convenient production, high efficiency, wide raw material source, excellent performance and low cost.
Detailed Description
The technical solution of the present invention will be described in detail by examples.
The invention provides a powdery calcium-zinc composite heat stabilizer for emulsion polyvinyl chloride (EPVC), which has the following optimal formula: is prepared from zinc stearate (48 + -3%), pentaerythritol (16 + -1%), uracil (4%), hydrotalcite (8 + -1%) and calcium carbonate (24 + -1%).
Selecting a normal temperature and pressure compounding process, respectively crushing the selected raw materials into micro powder (fully enlarging the surface of the raw materials and improving the dispersion performance of the raw materials), weighing the raw materials according to a formula proportion, and uniformly compounding the raw materials at normal temperature and pressure to obtain the powdery calcium-zinc composite heat stabilizer (powder CZ for short). The process comprises the following steps:
crushing at normal temperature → weighing material → mixing and compounding at normal temperature → powdered CZ.
Claims (1)
1. A powdery calcium-zinc composite heat stabilizer for emulsion polyvinyl chloride resin is characterized in that: the optimal formula of the powdery calcium-zinc composite heat stabilizer for the emulsion polyvinyl chloride resin is as follows: is composed of 48 plus or minus 3 percent of zinc stearate, 16 plus or minus 1 percent of pentaerythritol, 4 plus or minus 0.5 percent of uracil, 8 plus or minus 0.5 percent of hydrotalcite and 24 plus or minus 1 percent of calcium carbonate; the production process comprises the steps of selecting normal temperature and normal pressure for compounding, respectively crushing the selected raw materials into micro powder, weighing the raw materials according to a formula, and uniformly compounding at the normal temperature and the normal pressure to obtain the powdery calcium-zinc composite heat stabilizer (powder CZ), namely crushing at the normal temperature, weighing, and mixing at the normal temperature to obtain the powdery CZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258870.1A CN111763388A (en) | 2019-04-02 | 2019-04-02 | Powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride resin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258870.1A CN111763388A (en) | 2019-04-02 | 2019-04-02 | Powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride resin and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111763388A true CN111763388A (en) | 2020-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910258870.1A Pending CN111763388A (en) | 2019-04-02 | 2019-04-02 | Powdery calcium-zinc composite heat stabilizer for emulsion-process polyvinyl chloride resin and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111763388A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110127066A1 (en) * | 2009-11-30 | 2011-06-02 | Chemson Polymer Additives AG | Heat Stabilizers Containing Hydrotalcite Particles With Specific Zeta Potentials That Demonstrate Improved Processing and Performance In Molded Vinyl Compounds |
| CN105315574A (en) * | 2015-10-12 | 2016-02-10 | 浙江工业大学 | Calcium and zinc heat stabilizer for PVC and application of calcium and zinc heat stabilizer |
| CN107200869A (en) * | 2017-07-01 | 2017-09-26 | 武汉金牛经济发展有限公司 | A kind of Ca-Zn composite heat stabilizer and its application and preparation method |
-
2019
- 2019-04-02 CN CN201910258870.1A patent/CN111763388A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110127066A1 (en) * | 2009-11-30 | 2011-06-02 | Chemson Polymer Additives AG | Heat Stabilizers Containing Hydrotalcite Particles With Specific Zeta Potentials That Demonstrate Improved Processing and Performance In Molded Vinyl Compounds |
| CN105315574A (en) * | 2015-10-12 | 2016-02-10 | 浙江工业大学 | Calcium and zinc heat stabilizer for PVC and application of calcium and zinc heat stabilizer |
| CN107200869A (en) * | 2017-07-01 | 2017-09-26 | 武汉金牛经济发展有限公司 | A kind of Ca-Zn composite heat stabilizer and its application and preparation method |
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Application publication date: 20201013 |