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Hyperbranched polymer modified inorganic nano nucleating agent as well as preparation method and application thereof

A hyperbranched polymer, inorganic nano technology, applied in the field of polymer modification processing, can solve the problems of limited improvement of nucleating ability of nucleating agents, and achieve the effect of good compatibility and high dispersibility

Active Publication Date: 2021-03-30
中化石化销售有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the nucleating ability of the nucleating agent prepared by this method is limited

Method used

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  • Hyperbranched polymer modified inorganic nano nucleating agent as well as preparation method and application thereof
  • Hyperbranched polymer modified inorganic nano nucleating agent as well as preparation method and application thereof
  • Hyperbranched polymer modified inorganic nano nucleating agent as well as preparation method and application thereof

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preparation example Construction

[0040] The invention provides a preparation method of a hyperbranched polymer modified inorganic nano-nucleating agent, comprising:

[0041] (1) mixing a predetermined proportion of homocysteine ​​thiolactone hydrochloride, α-unsaturated alkyl acid chloride and an organic base, and carrying out the first reaction in a medium polar solvent to obtain a polymerized monomer;

[0042] (2) mixing the amino coupling agent and the inorganic nanoparticles, and carrying out the second reaction, so as to obtain the amino-modified inorganic nanoparticles;

[0043] (3) mixing the amino-modified inorganic nanoparticles, the polymerized monomer and the photoinitiator, and performing a third reaction under ultraviolet light irradiation, so as to obtain a hyperbranched polymer-modified inorganic nano-nucleating agent.

[0044] Reaction of homocysteine ​​thiolactone hydrochloride and α-unsaturated alkyl acid chloride to prepare dormant polymerized monomers; inorganic nanoparticles activate dorm...

Embodiment 1

[0060] Homocysteine ​​thiolactone hydrochloride, crotonyl chloride and organic base were added into a 100L reaction vessel according to a molar mass ratio of 1:1:1, 60L of tetrahydrofuran was added to dissolve, and the reaction was stirred for 6h. The reaction temperature was 0°C, and the stirring speed was 200 rpm. After the reaction is completed, the precipitate of triethylamine hydrochloride is removed by filtration, and the solvent is distilled off under reduced pressure to obtain the dormant polymerized monomer.

[0061] The amino silane coupling agent with a mass fraction of 10% is prepared. The silica nanoparticles and the amino silane coupling agent solution are mixed uniformly on a high-speed mixer at a mass ratio of 100:1, and the stirring time is 30 minutes to obtain amino-modified silica particles. .

[0062] Amino-modified silica particles, dormant polymerization monomers, and photoinitiator Darocur 2959 were added to a 100L reaction vessel in a mass ratio of 1:1...

Embodiment 2

[0065] The experimental process is basically the same as that of Example 1, except that methacryloyl chloride is used to replace crotonyl chloride, and light calcium carbonate is used to replace silica. The reaction temperature of the dormant polymerized monomer was 10° C., the reaction time was 2 hours, and the stirring speed was 50 rpm. In addition, the weight ratio of light calcium carbonate and amino coupling agent is 1000:1.

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Abstract

The invention discloses a hyperbranched polymer modified inorganic nano nucleating agent as well as a preparation method and an application thereof. The hyperbranched polymer modified inorganic nano nucleating agent provided by the invention is prepared by the following method: (1) mixing homocysteine thiolactone hydrochloride, alpha-unsaturated alkyl acyl chloride and organic base according to apreset proportion, and carrying out a first reaction to obtain a polymeric monomer; (2) mixing an amino coupling agent and the inorganic nanoparticles, and carrying out a second reaction to obtain amino-modified inorganic nanoparticles; and (3) mixing the amino-modified inorganic nanoparticles, the polymeric monomer and a photoinitiator, and carrying out a third reaction under ultraviolet irradiation to obtain the hyperbranched polymer-modified inorganic nano nucleating agent. The hyperbranched polymer modified inorganic nano nucleating agent prepared by the invention can be added into resin particles to enhance the mechanical properties of resin products.

Description

technical field [0001] The invention relates to the field of polymer modification processing, in particular to a hyperbranched polymer modified inorganic nano-nucleating agent and its preparation method and application. Background technique [0002] Regulating the crystallization of polyolefin resins is an important means to improve their performance and make them more functional. A nucleating agent is a modifier that promotes the crystallization of a polymer and improves its grain structure. Adding a nucleating agent to the polyolefin resin can accelerate the crystallization speed of the polyolefin resin, increase the mechanical properties and processing properties of the polyolefin resin, and improve the thermodynamic properties of the polyolefin resin. Nano-nucleating agent is a new type of nucleating agent that has developed rapidly in recent years. The existing technology has a certain research basis for inorganic nanoparticle nucleating agents. For example, the Chine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K3/36C08K3/26C08K3/22C08K3/34C08L23/12
CPCC08K9/08C08K3/36C08K3/26C08K2201/011C08K2003/265C08L2205/24C08L23/12
Inventor 李波梁胜轲金华王武聪杜中杰孙佩鑫侯斌
Owner 中化石化销售有限公司