Method for preparing vinyl chloride-based polymer composite material, vinyl chloride-based polymer composite material, and vinyl chloride-based polymer composite material composition comprising same

A composite material and vinyl chloride technology are applied in the fields of preparing vinyl chloride polymer composite materials, vinyl chloride polymer composite materials and vinyl chloride polymer composite material compositions containing the composite materials, and can solve the problem of insufficient improvement. Thermal stability and other issues, to achieve excellent thermal stability, inhibit side reactions, and improve thermal stability.

Pending Publication Date: 2022-06-07
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still limitations in overcoming the disadvantages of bulk polymerization methods with poor thermal stability as only conventionally proposed methods are not sufficient to improve thermal stability.

Method used

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  • Method for preparing vinyl chloride-based polymer composite material, vinyl chloride-based polymer composite material, and vinyl chloride-based polymer composite material composition comprising same
  • Method for preparing vinyl chloride-based polymer composite material, vinyl chloride-based polymer composite material, and vinyl chloride-based polymer composite material composition comprising same
  • Method for preparing vinyl chloride-based polymer composite material, vinyl chloride-based polymer composite material, and vinyl chloride-based polymer composite material composition comprising same

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preparation example Construction

[0039] The method for preparing a vinyl chloride-based polymer composite material according to an embodiment of the present invention includes: a first step of performing bulk polymerization of vinyl chloride-based monomers; and recovering unreacted vinyl chloride-based monomers and obtaining chlorine after the bulk polymerization is completed The second step of the vinyl-based polymer composite material, wherein polyvinyl alcohol is added in at least one of the first step and the second step, and based on 100 parts by weight of the vinyl chloride-based monomer in total, in an amount of 0.003 parts by weight to 0.500 Polyvinyl alcohol is added in parts by weight.

[0040]In this case, a total of 100 parts by weight of the vinyl chloride-based monomer may mean "the total amount (100 parts by weight) of the vinyl chloride-based monomer added in the method for producing a vinyl chloride-based polymer composite material".

[0041] The first step can be carried out, for example, in...

Embodiment 1

[0093] The vinyl chloride-based monomer was polymerized as follows using a polymerization apparatus comprising a volume of 0.2 m 3 The prepolymerization reactor with a volume of 0.5m 3 The main polymerization reactor, a reflux condenser connected to the main polymerization reactor and controlling the polymerization temperature, and a vinyl chloride recovery pipe connected to the reflux condenser and discharging unreacted vinyl chloride-based monomers.

[0094] The vinyl chloride monomer of 140kg and the tert-butyl peroxyneodecanoate of 85g were successively input into the prepolymerization reactor, which had been degassed into high vacuum, and then the polyvinyl alcohol (degree of hydrolysis: degree of hydrolysis: 40 mol%), followed by stirring. While maintaining stirring, the pressure in the prepolymerization reactor was raised to 12 kgf / cm 2 , and bulk polymerized to prepare particle cores. In this case, the polymerization conversion rate was 10%.

[0095] Subsequently, ...

Embodiment 2 to 6 and comparative example 1 to 3

[0097] A vinyl chloride polymer composite was prepared in the same manner as in Example 1, except that polyethylene glycol and tetrasodium diphosphate shown in Tables 1 and 2 below were input instead of 11 g of polyvinyl alcohol (degree of hydrolysis: 40 mol%) .

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Abstract

The present invention provides a method for preparing a vinyl chloride-based polymer composite material, a vinyl chloride-based polymer composite material, and a vinyl chloride-based polymer composite material composition comprising the same, the method comprising: a first step of performing bulk polymerization of a vinyl chloride-based monomer; and a second step of recovering the unreacted vinyl chloride-based monomer after completion of the bulk polymerization and obtaining a vinyl chloride-based polymer composite, in which polyvinyl alcohol is added in at least one of the first step and the second step, and the polyvinyl alcohol is added in an amount of 0.003 to 0.500 parts by weight based on a total of 100 parts by weight of the vinyl chloride-based monomer.

Description

technical field [0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2020-0054604 filed on May 7, 2020 and Korean Patent Application No. 2021-0058488 filed on May 6, 2021, the disclosures of which are hereby incorporated by reference Incorporate it as a whole. technical field [0003] The present invention relates to a method for preparing a vinyl chloride-based polymer composite material, a vinyl chloride-based polymer composite material and a vinyl chloride-based polymer composite material composition comprising the composite material, and in particular, by adding during or after the polymerization process. A method for preparing a vinyl chloride-based polymer composite material for improving thermal stability, color quality and transparency with polyvinyl alcohol, a vinyl chloride-based polymer composite material, and a vinyl chloride-based polymer composite material composition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F14/06C08F2/02C08L27/06C08L29/04
CPCC08F14/06C08L27/06C08L2201/08C08L2201/10C08F2/02C08L29/04C08F2/001
Inventor 安晟镕金健地裵兴权李世雄河玄圭
Owner LG CHEM LTD
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