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A kind of preparation method of chitosan compatibilization chain extension material

A technology of chitosan and chitosan microspheres is applied in the field of preparation of chitosan compatibilizing and chain-extending materials, which can solve the problem of weak cross-linking, small improvement in impact resistance of resin materials, and branched polymer molecular chains. Insufficient degree and other problems, to achieve the effect of strong cross-linking, guaranteed tensile ductility, and high degree of branching

Active Publication Date: 2020-12-04
ZHEJIANG LANYU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing compatibilization and chain extender products, the degree of branching of polymer molecular chains is not strong, the crosslinking between each other is weak, and the improvement of the impact resistance of resin materials is small

Method used

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  • A kind of preparation method of chitosan compatibilization chain extension material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In the reaction kettle, add chitosan microspheres 100Kg, 1,4-dibromobutene-1,4 diol 6Kg, α-acrylate group-Ω-isocyanate group polyethylene glycol 1Kg, fatty alcohol polyoxyethylene Ether silane 0.3Kg, 3-amino-5-(5-methyl-2-thiophene)-1-cyclohex-2-enone 0.2Kg, N-hydroxystem-3-norbornene-2,3-di Imide 0.12Kg, cyclopentadiene tricarbonyl rhenium 0.05Kg, benzoyl peroxide 1.5Kg, gelatin 1.5Kg, water 450Kg, heat up to 85°C, react for 6h, the product is filtered, washed with water, dried, and obtained Chain extender products.

Embodiment 2

[0018] In the reaction kettle, add chitosan microspheres 100Kg, 1,4-dibromobutene-1,4 diol 4Kg, α-acrylate group-Ω-isocyanate group polyethylene glycol 0.5Kg, fatty alcohol polyoxygen Vinyl ether silane 0.1Kg, 3-amino-5-(5-methyl-2-thiophene)-1-cyclohex-2-enone 0.1Kg, N-hydroxystem-3-norbornene-2,3- Diimide 0.05Kg, cyclopentadienetricarbonylrhenium 0.01Kg, benzoyl peroxide 1Kg, gelatin 1.Kg, water 300Kg, heat up to 80°C, react for 4h, the product is filtered, washed with water, and dried to obtain Compatibility and chain extender products.

Embodiment 3

[0020] In the reaction kettle, add chitosan microspheres 100Kg, 1,4-dibromobutene-1,4 diol 8Kg, α-acrylate group-Ω-isocyanate group polyethylene glycol 1.5Kg, fatty alcohol polyoxygen Vinyl ether silane 0.5Kg, 3-amino-5-(5-methyl-2-thiophene)-1-cyclohex-2-enone 0.3Kg, N-hydroxystem-3-norbornene-2,3- Diimide 0.2Kg, cyclopentadienetricarbonylrhenium 0.1Kg, benzoyl peroxide 4Kg, gelatin 4Kg, water 600Kg, heat up to 90°C, react for 8 hours, filter the product, wash with water, and dry to obtain compatibilization Chain extender products.

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Abstract

The invention relates to a preparation method of a chitosan volume-increasing and chain expansion material. Through being metered in parts by weight, water, chitosan microspheres, 1,4-dibromo butene-1,4 diol, A-acrylate-omega-isocyanate polyethylene glycol, alcohol ether polyoxyethylene, 3-amino-5-(5-methyl-2-thiophene)-1-hexamethylene-2-ketene, N-hydroxyl-3-norbornene-2,3-imidodicarbonic diamide,cyclopentadienylrhenium tricarbonyl, benzoperoxide and gelatin are added into a reaction kettle; the materials are uniformly stirred; the temperature is raised; the reaction is performed; products are subjected to filtering, water washing and drying; a volume-increasing and chain expansion product is obtained.

Description

technical field [0001] The invention relates to a preparation method of a capacity-enhancing and chain-extending agent, in particular to a preparation method of a chitosan-enhancing and chain-extending material. Background technique [0002] Chain extenders, also known as chain extenders, are substances that can react with functional groups on linear polymer chains to extend molecular chains and increase molecular weight. The use and effect of chain extenders have a great impact on the mechanical properties and process properties of polyurethane, polyester and other products. [0003] CN103881001A discloses a preparation method and application of a comb-like epoxy compatibilization chain extender for polymer materials. The chain extender is composed of the following raw material formula (in parts by mass): chitosan microspheres: 60-95; acrylate monomers: 5-40; initiator: 0.1-10. The comb-shaped epoxy chain extender can be obtained by bulk polymerization or solution polymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F214/16C08F220/34C08F216/36C08F236/02C08F232/08
CPCC08F251/00C08F214/16
Inventor 王大可张欣
Owner ZHEJIANG LANYU INTELLIGENT TECH CO LTD