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Master batch capable of enhancing properties and melt strength of condensation polymer and preparation method thereof

A technology of melt strength and condensation polymers, applied in the field of polymers, can solve the problems of lack of versatility

Active Publication Date: 2016-06-22
SHANGHAI FUYUAN PLASTICS SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Innovative compared to previous inventions, but lacks versatility

Method used

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  • Master batch capable of enhancing properties and melt strength of condensation polymer and preparation method thereof
  • Master batch capable of enhancing properties and melt strength of condensation polymer and preparation method thereof
  • Master batch capable of enhancing properties and melt strength of condensation polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Select styrene as the first vinyl monomer, maleic anhydride as the second monomer containing G functional group for copolymerization, select azobisisobutyronitrile as the initiator, and xylene as the solvent, in a 25L reactor Solution polymerization was carried out at 60°C. The number average molecular weight of the final product is designed to be about 5000, and each molecular chain contains 10 maleic anhydride molecules on average, that is, there is one maleic anhydride monomer between about 3 to 4 styrene monomers, which is in line with the requirements for The law of branching degree response requirements. Then the feeding amount of maleic anhydride monomer is according to (N·M G ) calculation, it is 0.98kg; the feeding amount of styrene monomer is according to Calculated, it is 4.02kg. Since the molecular weight of the polymer is not high, 16.36kg of xylene solvent is selected, so the initial monomer [M] is about 2mol / L, so the number average degree of polymeri...

Embodiment 2

[0063] Choose methyl methacrylate as the first vinyl monomer, glycidyl methacrylate as the second monomer containing G functional group for copolymerization, choose benzoyl peroxide as the initiator, and polyvinyl alcohol as the suspending agent , Suspension polymerization was carried out at 60° C. in a 25 L reactor. The number average molecular weight of the final product is also designed to be about 5000, and each molecular chain contains 10 glycidyl methacrylate monomers on average, that is, there is 1 among about 3 to 4 methyl methacrylate monomers. The glycidyl methacrylate monomer meets the requirements for the degree of branching reaction. Then the feeding amount of glycidyl methacrylate monomer is according to (N·M G ) calculation, it is 1.42kg; the feeding amount of methyl methacrylate monomer is according to Calculated, it is 3.58kg. Select 0.1 kg of isooctyl 3-mercaptopropionate as the chain transfer agent. The initial monomer [M] is about 9.57mol / L, so the num...

Embodiment 3

[0070] Styrene was selected as the first vinyl monomer, maleic anhydride was used as the second monomer containing G functional group for copolymerization, methyl ethyl ketone peroxide was selected as the initiator, and bulk polymerization was carried out in a 15lLIST device at 100°C. The number average molecular weight of the final product is designed to be about 3500, and each molecular chain contains 6 maleic anhydride molecules on average, that is, there is 1 maleic anhydride monomer between about 4 styrene monomers, which is in line with the requirement for branching. The law of response requirements. Then the feeding amount of maleic anhydride monomer is according to (N·M G ) calculation, it is 0.588kg; the feeding amount of styrene monomer is according to Calculated, it is 2.912kg. The initial monomer [M] is about 8.8mol / L, so the number average degree of polymerization 0.07kg of isooctyl 3-mercaptopropionate was selected as the chain transfer agent. Furthermore, ...

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Abstract

The invention provides a master batch capable of enhancing properties and melt strength of condensation polymer. The master batch is mainly composed of the applied condensation polymer or polymers of the same kind, and a set-structure polyfunctional group compound performing grafting function, which are bonded together through the chemical bond to become the functionalized master batch. In the product preparation process, the master batch is added into the raw materials according to the demands of the product for degree of grafting, so that the condensation polymer raw material can directly achieve the melt strength satisfying the requirements in the product working process, thereby obtaining the high-quality product. The applicability of the raw material (including recovered raw material) is not limited completely, and almost does not have the problem in compatibility in the working process. The master batch can be widely used as a functionalized master batch for nylon, polyester, polylactic acid and other materials, so that the universal condensation polymer, including the recovered material, can be used for preparing the high-performance foamed, melt spinning and film products.

Description

technical field [0001] The invention relates to polymers, in particular to a masterbatch for improving the properties and melt strength of polycondensates and a preparation method thereof. Background technique [0002] Polyester resins such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT) and other polyester resins; nylon 6, Nylon resins such as nylon 66 and nylon 610 and polylactic acid (PLA) are condensation polymers that are widely used. In view of their good mechanical properties, high temperature resistance, or unparalleled biodegradable properties, they are widely used in the preparation of fibers, films, containers and engineering plastics. [0003] However, since these condensation polymers have small molecular weights and are easily hydrolyzed, the condensation polymers generally have a very low viscosity once melted, and are often encountered in the processing and preparation of bottles, cans, utensils, an...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/04C08L77/02C08L33/12C08L35/06C08F212/08C08F222/08C08F220/14C08F220/32C08J3/22
CPCC08F212/08C08F220/14C08J3/226C08J2367/02C08J2367/04C08J2377/02C08J2467/02C08J2467/04C08J2477/02C08L67/02C08L67/04C08L77/02C08F222/08C08L35/06C08L33/12C08F220/325
Inventor 郑安呐管涌危大福胡福增王书忠
Owner SHANGHAI FUYUAN PLASTICS SCI CO LTD
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