CN112812218A - Polypropylene nucleating agent and preparation method and application thereof - Google Patents
Polypropylene nucleating agent and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides a polypropylene nucleating agent and a preparation method and application thereof, wherein the method comprises the following steps: s1: performing a neutralization reaction on acrylic acid and a sodium hydroxide solution, adding a first reagent, uniformly stirring, heating to 45-55 ℃, dripping glycidyl methacrylate, heating the system to 65-75 ℃ after dripping is finished, and reacting for 3-5 hours to generate a first reaction product; s2: and dissolving the first reaction product, adding phthalic anhydride, heating to 80-90 ℃, and reacting for 5-7 hours to obtain the polypropylene nucleating agent. The technical scheme of the invention can solve the problems of low transparency and high ash content caused by the excessively high dosage of the conventional inorganic nucleating agent and the problems of poor compatibility, difficult dispersion and higher price of the common organic nucleating agent and polypropylene.
Description
Technical Field
The invention relates to the technical field of nucleating agents, and particularly relates to a polypropylene nucleating agent, and a preparation method and application thereof.
Background
The propylene resin is used as a general plastic raw material and has wider and wider application range in the field of packaging. In the field of packaging, the requirement for the transparency of polypropylene is higher and higher, and therefore, the development of nucleating agents for improving the transparency of polypropylene is urgently needed. Talc powder and silicon dioxide are commonly used transparent inorganic nucleating agents, and although the nucleating agents are cheap and good, the nucleating agents can shield light rays and reduce transparency when being used in an excessive amount, and the inorganic components can also increase the ash content of polypropylene. Aryl phosphates and sorbitol are common organic nucleating agents, have high nucleating efficiency, but have poor compatibility with polypropylene, difficult dispersion and high price, and limit the popularization and application of the nucleating agents. For polypropylene, the nucleating agent with high molecular weight has natural technical advantages, good compatibility and migration resistance, so the development of the nucleating agent with high molecular weight is the main direction for the development of transparent polypropylene.
Disclosure of Invention
The invention provides a polypropylene nucleating agent and a preparation method and application thereof, which are used for solving the problems of low transparency and high ash content caused by too high using amount of the conventional inorganic nucleating agent and the problems of poor compatibility, difficult dispersion and higher price of the common organic nucleating agent and polypropylene.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
a polypropylene nucleating agent has a general structural formula as follows:
wherein m and n are polymerization degrees.
The embodiment of the invention also provides a preparation method of the polypropylene nucleating agent, which comprises the following steps:
s1: performing a neutralization reaction on acrylic acid and a sodium hydroxide solution, adding a first reagent, uniformly stirring, heating to 45-55 ℃, dripping glycidyl methacrylate, heating the system to 65-75 ℃ after dripping is finished, and reacting for 3-5 hours to generate a first reaction product;
s2: and dissolving the first reaction product, adding phthalic anhydride, heating to 80-90 ℃, and reacting for 5-7 hours to obtain the polypropylene nucleating agent.
Optionally, in step S1, the molar ratio of acrylic acid to sodium hydroxide is 1: 1.
optionally, in step S1, the mass of the glycidyl methacrylate is 0.5 to 10% of the mass of the acrylic acid.
Optionally, in step S1, the first reagent includes an emulsifier, and the emulsifier is any one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, hexadecyl ammonium bromide, and hexadecyl ammonium chloride.
Optionally, in step S1, the mass of the emulsifier is 0.8 to 1.0% of the mass of the acrylic acid.
Optionally, in step S1, the first reagent further includes an initiator, and the initiator is any one of azobisisobutyronitrile, azobisisoheptonitrile, cumene hydroperoxide, tert-butyl hydroperoxide, dibenzoyl peroxide, and dicumyl peroxide.
Optionally, in step S1, the mass of the initiator is 0.5 to 1.0% of the mass of the acrylic acid.
Optionally, in step S2, the first reaction product is dissolved by butanone.
The embodiment of the invention also provides the application of the polypropylene nucleating agent in the melt extrusion of polypropylene resin.
The embodiment of the invention has the following technical effects:
according to the technical scheme, the preparation method has the advantages of natural technology, low cost and high quality, and the polypropylene material has good compatibility with polypropylene, migration resistance and high nucleation efficiency, and the prepared polypropylene material has high bending modulus, high transparency and small haze.
Drawings
FIG. 1 is a flow chart of a method for preparing a polypropylene nucleating agent according to an embodiment of the present invention.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The embodiment of the invention provides a polypropylene nucleating agent, which has a general structural formula as follows:
wherein m and n are polymerization degrees.
The polypropylene nucleating agent provided by the embodiment of the invention can solve the problems of low transparency and high ash content caused by too high dosage of the conventional inorganic nucleating agent, and the problems of poor compatibility, difficult dispersion and higher price of the common organic nucleating agent and polypropylene.
As shown in fig. 1, an embodiment of the present invention further provides a preparation method of a polypropylene nucleating agent, including the following steps:
s1: performing a neutralization reaction on acrylic acid and a sodium hydroxide solution, adding a first reagent, uniformly stirring, heating to 45-55 ℃, dripping glycidyl methacrylate, heating the system to 65-75 ℃ after dripping is finished, and reacting for 3-5 hours to generate a first reaction product;
s2: and dissolving the first reaction product, adding phthalic anhydride, heating to 80-90 ℃, and reacting for 5-7 hours to obtain the polypropylene nucleating agent.
In the step S2, phthalic anhydride is added, and simultaneously a catalyst is added, wherein the catalyst is p-toluenesulfonic acid, the solid content concentration in the reaction solution is 10-20%, and the mass of the catalyst is 0.1-0.5% of that of the first reaction product.
The invention provides a two-step preparation method of a high molecular weight transparent polypropylene nucleating agent, which has the following reaction principle: performing acid-base neutralization on acrylic acid to obtain sodium acrylate, adding a first reagent, uniformly stirring, heating to 45-55 ℃, and copolymerizing with a glycidyl methacrylate emulsion to obtain a sodium acrylate-glycidyl methacrylate copolymer (a first reaction product); then, phthalic anhydride is added, and rigid group benzene rings are covalently connected to the copolymer through ring-opening reaction of epoxy groups and anhydride, so that the polypropylene nucleating agent is finally obtained.
According to the embodiment of the invention, the preparation method has natural technical advantages, is cheap and good, has good compatibility with polypropylene, is migration-resistant, has high nucleation efficiency, and the prepared polypropylene material has high bending modulus, high transparency and small haze.
In an alternative embodiment of the present invention, in step S1, the molar ratio of acrylic acid to sodium hydroxide is 1: 1.
in an optional embodiment of the present invention, in step S1, the mass of the glycidyl methacrylate is 0.5 to 10% of the mass of the acrylic acid.
In an optional embodiment of the present invention, in step S1, the first reagent includes an emulsifier, and the emulsifier is any one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, hexadecyl ammonium bromide, and hexadecyl ammonium chloride.
In an optional embodiment of the present invention, in step S1, the mass of the emulsifier is 0.8 to 1.0% of the mass of the acrylic acid.
In an optional embodiment of the present invention, in step S1, the first reagent further includes an initiator, where the initiator is any one of azobisisobutyronitrile, azobisisoheptonitrile, cumene hydroperoxide, tert-butyl hydroperoxide, dibenzoyl peroxide, and dicumyl peroxide.
In an optional embodiment of the invention, in step S1, the mass of the initiator is 0.5 to 1.0% of the mass of the acrylic acid.
In an alternative embodiment of the present invention, in step S2, the first reaction product is dissolved in butanone.
The embodiment of the invention also provides the application of the polypropylene nucleating agent in the melt extrusion of polypropylene resin.
Specifically, the polypropylene nucleating agent is applied to melt extrusion of polypropylene resin, the addition amount is 500-3000 ppm, the double-screw extrusion processing temperature is 200 ℃, the transparency of polypropylene can be effectively improved, and the haze of polypropylene is reduced.
The above embodiments may be implemented by the following implementation:
in step S1, the first temperature is increased to 50 ℃, the second temperature is increased to 70 ℃, and the reaction time is 4 hours as an example;
in step S1, the temperature is raised to 85 ℃ and the reaction time is 6 hours.
Example 1
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in the aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.6g of sodium dodecyl sulfate and 0.36g of dibenzoyl peroxide are added, after uniform stirring, the temperature is raised to 50 ℃, 3.6g of glycidyl methacrylate is slowly dropped in the stirring state, after the dropping, the temperature of the system is raised to 70 ℃, and the reaction is finished after 4 hours, so that the sodium acrylate-glycidyl methacrylate copolymer is obtained.
(2) 50g of sodium acrylate-glycidyl methacrylate copolymer is added into 300g of butanone solvent for dissolution, 1.92g of phthalic anhydride and 0.25g of p-toluenesulfonic acid are added, the temperature is raised to 85 ℃, the reaction is finished after 6 hours of reaction, rigid group benzene rings are covalently connected to the copolymer through ring opening reaction of epoxy groups and anhydride, and the product is cleaned and filtered to obtain the polypropylene nucleating agent.
(3) 100 parts of polypropylene (brand T36F) and 0.2 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus of the modified polypropylene prepared is measured according to the national standard GB/T9341-2008, and the measurement result is shown in the following table 1.
The light transmittance and haze of the modified polypropylene are measured according to the national standard GB/T2410-2008, and the measurement results are shown in the following table 1.
Example 2
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in the aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.65g of sodium dodecyl benzene sulfonate and 0.5g of azobisisobutyronitrile are added, after uniform stirring, the temperature is raised to 50 ℃, 5.6g of glycidyl methacrylate is slowly dropped in the stirred state, after the dropping, the temperature of the system is raised to 70 ℃, and after 4 hours, the reaction is finished, thus obtaining the sodium acrylate-glycidyl methacrylate copolymer.
(2) 50g of sodium acrylate-glycidyl methacrylate copolymer is added into 300g of butanone solvent for dissolution, 3.84g of phthalic anhydride and 0.2g of p-toluenesulfonic acid are added, the temperature is raised to 85 ℃, the reaction is finished after 6 hours of reaction, rigid group benzene rings are covalently connected to the copolymer through ring opening reaction of epoxy groups and anhydride, and the product is cleaned, filtered and milled into particles with fineness within 100 microns through airflow to obtain the polypropylene nucleating agent.
(3) 100 parts of polypropylene (brand T36F) and 0.3 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus, light transmittance and haze of the modified polypropylene material thus obtained were measured in the same manner as in example 1, and the measurement results are shown in Table 1.
Example 3
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in the aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.7g of hexadecylammonium bromide and 0.43g of tert-butyl hydroperoxide are added, the mixture is heated to 50 ℃ after being uniformly stirred, 0.72g of glycidyl methacrylate is slowly dropped in the mixture under the stirring state, the system is heated to 70 ℃ after the dropping is finished, and the reaction is finished after 4 hours, so that the sodium acrylate-glycidyl methacrylate copolymer is obtained.
(2) 50g of sodium acrylate-glycidyl methacrylate copolymer is added into 300g of butanone solvent for dissolution, 3.84g of phthalic anhydride and 0.16g of p-toluenesulfonic acid are added, the temperature is raised to 85 ℃, the reaction is finished after 6 hours of reaction, rigid group benzene rings are covalently connected to the copolymer through ring opening reaction of epoxy groups and anhydride, and the product is cleaned, filtered and milled into particles with fineness within 100 microns through airflow to obtain the polypropylene nucleating agent.
(3) 100 parts of polypropylene (brand T36F) and 0.1 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus, light transmittance and haze of the modified polypropylene material thus obtained were measured in the same manner as in example 1, and the measurement results are shown in Table 1.
Example 4
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in the aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.59g of sodium dodecyl benzene sulfonate and 0.65g of dicumyl peroxide are added, the temperature is raised to 50 ℃ after uniform stirring, 0.36g of glycidyl methacrylate is slowly dropped in the system under the stirring state, the temperature of the system is raised to 70 ℃ after the dropping is finished, and the reaction is finished after 4 hours, so that the sodium acrylate-glycidyl methacrylate copolymer is obtained.
(2) 50g of sodium acrylate-glycidyl methacrylate copolymer is dissolved by adding 300g of butanone solvent, 3.84g of phthalic anhydride and 0.2g of p-toluenesulfonic acid are added, the temperature is raised to 85 ℃, the reaction is finished after 6 hours of reaction, rigid group benzene rings are covalently connected to the copolymer through ring opening reaction of epoxy groups and anhydride, and the product is cleaned and filtered to obtain the polypropylene nucleating agent.
(3) 100 parts of polypropylene (brand T36F) and 0.05 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus, light transmittance and haze of the modified polypropylene material thus obtained were measured in the same manner as in example 1, and the measurement results are shown in Table 1.
Example 5
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in an aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.63g of hexadecyl ammonium chloride and 0.72g of dibenzoyl peroxide are added, after uniform stirring, the temperature is raised to 50 ℃, 7.2g of glycidyl methacrylate is slowly dropped in the stirring state, after the dropping, the temperature of the system is raised to 70 ℃, and the reaction is finished after 4 hours, so that the sodium acrylate-glycidyl methacrylate copolymer is obtained.
(2) 50g of sodium acrylate-glycidyl methacrylate copolymer is added into 300g of butanone solvent for dissolution, 3.84g of phthalic anhydride and 0.13g of p-toluenesulfonic acid are added, the temperature is raised to 85 ℃, the reaction is finished after 6 hours of reaction, rigid group benzene rings are covalently connected to the copolymer through ring opening reaction of epoxy groups and anhydride, and the product is cleaned and filtered to obtain the polypropylene nucleating agent.
(3) 100 parts of polypropylene (brand T36F) and 0.15 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus, light transmittance and haze of the modified polypropylene material thus obtained were measured in the same manner as in example 1, and the measurement results are shown in Table 1.
Comparative example
Comparative example in the process of preparing the polypropylene nucleating agent, no rigid benzene ring group is introduced, and the specific preparation process is as follows:
(1) 72g of acrylic acid and 40g of sodium hydroxide were dissolved in an aqueous solution and reacted for 2 hours to obtain sodium acrylate. Then, 0.63g of hexadecyl ammonium chloride and 0.72g of dibenzoyl peroxide are added, after uniform stirring, the temperature is raised to 50 ℃, 7.2g of glycidyl methacrylate is slowly dropped in the stirring state, after the dropping, the temperature of the system is raised to 70 ℃, and the reaction is finished after 4 hours, so that the sodium acrylate-glycidyl methacrylate copolymer is obtained.
(2) 100 parts of polypropylene (brand T36F) and 0.1 part of the prepared nucleating agent are mixed uniformly in a high-speed mixer and extruded by a double screw extruder at the processing temperature of 200 ℃, and then the mixture is injected into a sample strip by an injection machine.
The flexural modulus, light transmittance and haze of the modified polypropylene material thus obtained were measured in the same manner as in example 1, and the measurement results are shown in Table 1.
TABLE 1 measurement results of polypropylene materials
As can be seen from table 1, the modified polypropylene obtained by using the examples of the present invention has a significantly increased flexural modulus and light transmittance and a significantly decreased haze, as compared with the raw material T36F. In addition, the modified polypropylene obtained in example 5 (with the same amount of nucleating agent added) also showed significant improvement in all three indices in Table 1, as compared with the modified polypropylene obtained in the comparative example.
The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.
Claims (10)
1. The polypropylene nucleating agent is characterized by having a general structural formula as follows:
wherein m and n are polymerization degrees.
2. A method for preparing the polypropylene nucleating agent according to claim 1, comprising the steps of:
s1: performing a neutralization reaction on acrylic acid and a sodium hydroxide solution, adding a first reagent, uniformly stirring, heating to 45-55 ℃, dripping glycidyl methacrylate, heating the system to 65-75 ℃ after dripping is finished, and reacting for 3-5 hours to generate a first reaction product;
s2: and dissolving the first reaction product, adding phthalic anhydride, heating to 80-90 ℃, and reacting for 5-7 hours to obtain the polypropylene nucleating agent.
3. The method according to claim 2, wherein in step S1, the molar ratio of acrylic acid to sodium hydroxide is 1: 1.
4. the production method according to claim 2, wherein in step S1, the mass of the glycidyl methacrylate is 0.5 to 10% of the mass of the acrylic acid.
5. The method according to claim 2, wherein in step S1, the first reagent includes an emulsifier, and the emulsifier is any one of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, cetyl ammonium bromide, and cetyl ammonium chloride.
6. The production method according to claim 5, wherein in step S1, the mass of the emulsifier is 0.8 to 1.0% of the mass of the acrylic acid.
7. The method according to claim 2, wherein in step S1, the first reagent further comprises an initiator, and the initiator is any one of azobisisobutyronitrile, azobisisoheptonitrile, cumene hydroperoxide, tert-butyl hydroperoxide, dibenzoyl peroxide, and dicumyl peroxide.
8. The production method according to claim 7, wherein in step S1, the mass of the initiator is 0.5 to 1.0% of the mass of the acrylic acid.
9. The method according to claim 2, wherein in step S2, the first reaction product is dissolved in methyl ethyl ketone.
10. Use of the polypropylene nucleating agent according to claim 1 in melt extrusion of polypropylene resin.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716657A (en) * | 2022-05-11 | 2022-07-08 | 北京德惠众合新材料有限公司 | Nucleating agent, polypropylene resin, and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1509720A (en) * | 1966-01-31 | 1968-01-12 | Sumitomo Chemical Co | Polypropylene compositions with improved mechanical properties and improved transparency |
| CN102408626A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Polypropylene anti-reflection nucleating agent and preparation method thereof |
| CN106519423A (en) * | 2015-09-10 | 2017-03-22 | 李博琪 | Transparent polypropylene material and preparation method thereof |
| CN109354712A (en) * | 2018-10-10 | 2019-02-19 | 山西省化工研究所（有限公司） | A kind of nucleating agent compositions and application thereof for improving polypropylene rigidity and lowering polypropylene mist degree |
-
2021
- 2021-02-07 CN CN202110168379.7A patent/CN112812218B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1509720A (en) * | 1966-01-31 | 1968-01-12 | Sumitomo Chemical Co | Polypropylene compositions with improved mechanical properties and improved transparency |
| CN102408626A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Polypropylene anti-reflection nucleating agent and preparation method thereof |
| CN106519423A (en) * | 2015-09-10 | 2017-03-22 | 李博琪 | Transparent polypropylene material and preparation method thereof |
| CN109354712A (en) * | 2018-10-10 | 2019-02-19 | 山西省化工研究所（有限公司） | A kind of nucleating agent compositions and application thereof for improving polypropylene rigidity and lowering polypropylene mist degree |
Non-Patent Citations (2)
| Title |
|---|
| 许越峥等: "聚丙烯成核剂的种类、作用及其最新研究进展", 《国外塑料》 * |
| 郑宁来: "聚丙烯成核剂的生产及发展", 《精细石油化工进展》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716657A (en) * | 2022-05-11 | 2022-07-08 | 北京德惠众合新材料有限公司 | Nucleating agent, polypropylene resin, and preparation method and application thereof |
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Effective date of registration: 20220512 Address after: 072750 daluogezhuang village, Zhuozhou City, Baoding City, Hebei Province Applicant after: ZHUOZHOU JUANCHENG CHEMICAL Co.,Ltd. Address before: 102488 460m west of Shilou village committee, Shilou Town, Fangshan District, Beijing Applicant before: Beijing junshuo New Material Co.,Ltd. Applicant before: ZHUOZHOU JUANCHENG CHEMICAL Co.,Ltd. |
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Denomination of invention: A polypropylene nucleating agent and its preparation method and application Effective date of registration: 20230531 Granted publication date: 20220621 Pledgee: China Construction Bank Co.,Ltd. Zhuozhou Geophysical Prospecting Sub branch Pledgor: ZHUOZHOU JUANCHENG CHEMICAL Co.,Ltd. Registration number: Y2023980042495 |