CN112830986A - PVC (polyvinyl chloride) terminator capable of improving whiteness and aged whiteness and preparation method thereof - Google Patents

PVC (polyvinyl chloride) terminator capable of improving whiteness and aged whiteness and preparation method thereof Download PDF

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Publication number
CN112830986A
CN112830986A CN202011571276.7A CN202011571276A CN112830986A CN 112830986 A CN112830986 A CN 112830986A CN 202011571276 A CN202011571276 A CN 202011571276A CN 112830986 A CN112830986 A CN 112830986A
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China
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parts
whiteness
pvc
antioxidant
aged
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CN202011571276.7A
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Chinese (zh)
Inventor
陈宗海
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Xinyi Xingchen New Material Technology Co ltd
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Xinyi Xingchen New Material Technology Co ltd
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Priority to CN202011571276.7A priority Critical patent/CN112830986A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F114/02—Monomers containing chlorine
    • C08F114/04—Monomers containing two carbon atoms
    • C08F114/06—Vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C08F2/42—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation using short-stopping agents
    • 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
    • C08K5/09—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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • 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
    • C08K5/13—Phenols; Phenolates
    • C08K5/134—Phenols containing ester groups
    • C08K5/1345—Carboxylic esters of phenolcarboxylic 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
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
    • C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds

Abstract

The invention provides a PVC terminator capable of improving whiteness and aged whiteness and a preparation method thereof, wherein the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 20-30 parts of a heat stabilizer: 10-15 parts of an antioxidant: 5-10 parts of a plasticizer: 10-20 parts of N-isopropylhydroxylamine: 10-15 parts of hydrotalcite: 10-15 parts of deionized water: 50-100 parts. The PVC terminator has reasonable component composition, the purchase price of the raw materials is low, the preparation cost is effectively reduced, and the prepared PVC terminator is applied to the preparation of PVC resin, so that the whiteness and the aging whiteness of PVC can be effectively improved.

Description

PVC (polyvinyl chloride) terminator capable of improving whiteness and aged whiteness and preparation method thereof
Technical Field
The invention belongs to the technical field of PVC (polyvinyl chloride) terminating agents, and particularly relates to a PVC terminating agent capable of improving whiteness and aging whiteness and a preparation method thereof.
Background
Terminating agents, also known as chain terminators, are materials that react rapidly with the initiator (or catalyst) or chain-lengthening chain, effectively destroying its activity and terminating the polymerization reaction. The polymerization reaction is stopped at the right moment, and a high-quality polymer product with uniform molecular weight and stable molecular structure can be obtained. The terminator not only acts to eliminate the active center of the system, but also has the function of preventing aging.
The usage and the dosage of the terminator in PVC polymerization: 1. the conventional use method comprises the following steps: according to the production process conditions, the catalyst is generally added when the pressure drop of the polymerization reaction is 0.05-0.15MPa (the conversion rate of the polymerization reaction is about 80%). The amount added is generally 0.03-0.05% of the monomers of the formulation. 2. Unconventional usage: when an emergency termination of the polymerization is required, it is generally possible to add from 0.3 to 0.5% by weight, based on the residual monomers.
The use of the terminator can improve the aging whiteness of the PVC, and avoid the yellowing phenomenon on the surface of a transparent product when the transparent product is processed by using PVC resin, which affects the transparency and color of the transparent product.
For a PVC terminator, Chinese patent with publication number CN102492064A discloses a preparation and use method of a polyvinyl chloride resin terminator, and particularly relates to a liquid antioxidant product which is prepared by taking 2, 6-di-tert-butyl-4- (1-phenylethyl) phenol as a main product through catalytic alkylation reaction by taking 2, 6-di-tert-butyl phenol and styrene as raw materials. Adding an organic solvent into a liquid antioxidant product taking 2, 6-di-tert-butyl-4- (1-phenylethyl) phenol as a main product, and fully stirring to prepare a liquid antioxidant product HKY-10. HKY-10 is compounded with a benzofuranone antioxidant and a phosphite antioxidant to prepare an oil-soluble, compound and liquid terminator product which is used as a terminator in the process of preparing general PVC resin products by a suspension method. However, the preparation method of the terminator provided by the patent has complex preparation process and high preparation cost.
Disclosure of Invention
In order to solve the existing problems, the invention aims to provide the PVC terminator capable of improving the whiteness and the aged whiteness and the preparation method thereof.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a PVC terminator capable of improving whiteness and aged whiteness, wherein the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 20-30 parts of a heat stabilizer: 10-15 parts of an antioxidant: 5-10 parts of a plasticizer: 10-20 parts of N-isopropylhydroxylamine: 10-15 parts of hydrotalcite: 10-15 parts of deionized water: 50-100 parts.
Further, the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25-30 parts of a heat stabilizer: 12-15 parts of an antioxidant: 5-8 parts of a plasticizer: 15-20 parts of N-isopropylhydroxylamine: 13-15 parts of hydrotalcite: 12-15 parts of deionized water: 80-100 parts.
Further, the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25 parts, heat stabilizer: 12 parts of antioxidant: 7 parts of plasticizer: 15 parts, N-isopropylhydroxylamine: 14 parts of hydrotalcite: 13 parts, deionized water: 80 parts of the raw materials.
Further, the plasticizer is dioctyl phthalate or dibutyl sebacate.
Further, the heat stabilizer is zinc stearate or calcium stearate.
Further, the antioxidant is antioxidant 1010, antioxidant 168, antioxidant BHT or antioxidant 1076.
Meanwhile, the invention also provides a preparation method of the PVC terminator capable of improving whiteness and aged whiteness, and the preparation method comprises the following steps: adding the 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxygen radical, the heat stabilizer, the antioxidant, the plasticizer, the N-isopropylhydroxylamine, the hydrotalcite and deionized water into a stirring kettle according to the proportion, heating to 60-70 ℃, stirring for 2-3 hours at the rotating speed of 6000-8000 rpm, cooling to room temperature after stirring, and standing to obtain the PVC terminator capable of improving whiteness and aging whiteness.
The invention has the beneficial effects that:
the PVC terminator is reasonable in component composition, the purchase price of raw materials is low, the preparation cost is effectively reduced, the prepared PVC terminator is applied to the preparation of PVC resin, the whiteness and the aging whiteness of PVC can be effectively improved, and the aging whiteness can be improved from the existing 87% to 91%.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The PVC terminator capable of improving whiteness and aged whiteness, provided by the invention, comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 20-30 parts of a heat stabilizer: 10-15 parts of an antioxidant: 5-10 parts of a plasticizer: 10-20 parts of N-isopropylhydroxylamine: 10-15 parts of hydrotalcite: 10-15 parts of deionized water: 50-100 parts.
Further, the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25-30 parts of a heat stabilizer: 12-15 parts of an antioxidant: 5-8 parts of a plasticizer: 15-20 parts of N-isopropylhydroxylamine: 13-15 parts of hydrotalcite: 12-15 parts of deionized water: 80-100 parts.
Further, the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25 parts, heat stabilizer: 12 parts of antioxidant: 7 parts of plasticizer: 15 parts, N-isopropylhydroxylamine: 14 parts of hydrotalcite: 13 parts, deionized water: 80 parts of the raw materials.
Further, the plasticizer is dioctyl phthalate or dibutyl sebacate.
Further, the heat stabilizer is zinc stearate or calcium stearate.
Further, the antioxidant is antioxidant 1010, antioxidant 168, antioxidant BHT or antioxidant 1076.
Meanwhile, the invention also provides a preparation method of the PVC terminator capable of improving whiteness and aged whiteness, and the preparation method comprises the following steps: adding the 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxygen radical, the heat stabilizer, the antioxidant, the plasticizer, the N-isopropylhydroxylamine, the hydrotalcite and deionized water into a stirring kettle according to the proportion, heating to 60-70 ℃, stirring for 2-3 hours at the rotating speed of 6000-8000 rpm, cooling to room temperature after stirring, and standing to obtain the PVC terminator capable of improving whiteness and aging whiteness.
The PVC terminator capable of improving the whiteness and the aged whiteness is reasonable in component composition, low in purchase price of raw materials and capable of effectively reducing the preparation cost, the prepared PVC terminator is applied to PVC resin preparation, the whiteness and the aged whiteness of PVC can be effectively improved, and the aged whiteness can be improved to 91% from the existing 87%.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present invention.

Claims (7)

1. A PVC terminator capable of improving whiteness and aged whiteness is characterized by comprising the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 20-30 parts of a heat stabilizer: 10-15 parts of an antioxidant: 5-10 parts of a plasticizer: 10-20 parts of N-isopropylhydroxylamine: 10-15 parts of hydrotalcite: 10-15 parts of deionized water: 50-100 parts.
2. The PVC terminator capable of improving whiteness and aged whiteness according to claim 1, wherein the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25-30 parts of a heat stabilizer: 12-15 parts of an antioxidant: 5-8 parts of a plasticizer: 15-20 parts of N-isopropylhydroxylamine: 13-15 parts of hydrotalcite: 12-15 parts of deionized water: 80-100 parts.
3. The PVC terminator capable of improving whiteness and aged whiteness according to claim 1, wherein the terminator comprises the following components in parts by weight: 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxyl: 25 parts, heat stabilizer: 12 parts of antioxidant: 7 parts of plasticizer: 15 parts, N-isopropylhydroxylamine: 14 parts of hydrotalcite: 13 parts, deionized water: 80 parts of the raw materials.
4. A PVC terminator capable of improving whiteness and aged whiteness according to claim 1, characterized in that the plasticizer is dioctyl phthalate or dibutyl sebacate.
5. The PVC terminator capable of improving whiteness and aged whiteness of claim 1, wherein the heat stabilizer is zinc stearate or calcium stearate.
6. The PVC terminator capable of improving whiteness and aged whiteness of claim 1, wherein the antioxidant is antioxidant 1010, antioxidant 168, antioxidant BHT or antioxidant 1076.
7. A method for preparing the PVC terminator capable of improving whiteness and aged whiteness according to any one of claims 1 to 6, wherein the method comprises the following steps: adding the 4-oxo-2, 2,6, 6-tetramethylpiperidine-1-oxygen radical, the heat stabilizer, the antioxidant, the plasticizer, the N-isopropylhydroxylamine, the hydrotalcite and deionized water into a stirring kettle according to the proportion, heating to 60-70 ℃, stirring for 2-3 hours at the rotating speed of 6000-8000 rpm, cooling to room temperature after stirring, and standing to obtain the PVC terminator capable of improving whiteness and aging whiteness.
CN202011571276.7A 2020-12-27 2020-12-27 PVC (polyvinyl chloride) terminator capable of improving whiteness and aged whiteness and preparation method thereof Pending CN112830986A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079279A1 (en) * 2001-04-02 2002-10-10 Atofina Polymerisation in aqueous suspension of vinyl chloride
CN108017738A (en) * 2017-11-29 2018-05-11 济宁康德瑞化工科技有限公司 A kind of environment-friendly water-based compound terminator
CN108424480A (en) * 2018-03-28 2018-08-21 鄂尔多斯市瀚博科技有限公司 A kind of efficient terminator of polyvinyl chloride polymerization and its application
CN110092850A (en) * 2019-05-22 2019-08-06 江苏长丰有机硅有限公司 A kind of aqueous emulsion type polyvinyl chloride resin and vinyl chloride-vinyl acetate resin terminator and preparation method thereof
CN110760019A (en) * 2018-07-25 2020-02-07 中国石油化工股份有限公司 Vinyl chloride polymerization terminator, preparation method and application thereof
CN110760022A (en) * 2018-07-25 2020-02-07 中国石油化工股份有限公司 Thermal-stable vinyl chloride polymerization terminator, and preparation method and application thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079279A1 (en) * 2001-04-02 2002-10-10 Atofina Polymerisation in aqueous suspension of vinyl chloride
TWI242017B (en) * 2001-04-02 2005-10-21 Atofina Aqueous suspension polymerization of vinyl chloride alone or mixed with another vinyl monomer, using a stable free radical of nitroxide type as polymerization terminator
CN108017738A (en) * 2017-11-29 2018-05-11 济宁康德瑞化工科技有限公司 A kind of environment-friendly water-based compound terminator
CN108424480A (en) * 2018-03-28 2018-08-21 鄂尔多斯市瀚博科技有限公司 A kind of efficient terminator of polyvinyl chloride polymerization and its application
CN110760019A (en) * 2018-07-25 2020-02-07 中国石油化工股份有限公司 Vinyl chloride polymerization terminator, preparation method and application thereof
CN110760022A (en) * 2018-07-25 2020-02-07 中国石油化工股份有限公司 Thermal-stable vinyl chloride polymerization terminator, and preparation method and application thereof
CN110092850A (en) * 2019-05-22 2019-08-06 江苏长丰有机硅有限公司 A kind of aqueous emulsion type polyvinyl chloride resin and vinyl chloride-vinyl acetate resin terminator and preparation method thereof

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Application publication date: 20210525