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Easily-shaped three-layer core-shell particle toughened polymer composite material and preparation method thereof

A composite material and core-shell particle technology, applied in the field of easy-to-form three-layer core-shell particle toughened polymer composite materials and preparation, can solve the problems of environmental protection and sustainable development, limited toughening effect, poor formability and the like , to achieve the effect of controllable structure and performance, easy industrial production and easy molding

Active Publication Date: 2019-11-01
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The particles in the above patents are not conducive to dispersion in the matrix due to their high viscosity during use, and their formability is poor. At the same time, the toughening effect is also limited.
And ethyl acrylate etc. all come from petroleum resources, all can cause the pollution of varying degrees in the preparation process, fail to solve the problem of environmental protection and sustainable development

Method used

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  • Easily-shaped three-layer core-shell particle toughened polymer composite material and preparation method thereof
  • Easily-shaped three-layer core-shell particle toughened polymer composite material and preparation method thereof
  • Easily-shaped three-layer core-shell particle toughened polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Mix 100 parts of cornstarch (Changchun Dacheng Corn Development Co., Ltd.) and 300 parts of ethyl acetate. After cooling down and stirring thoroughly, gradually add 15 parts of pyridine dropwise. After heating up and stirring fully, add 15 parts of acrylic acid dropwise and continue stirring. Washed with water and ethanol, filtered and dried to obtain Modified Starch 1 , The degree of substitution was determined to be 1.89.

Embodiment 2

[0046] Mix 100 parts of soybean starch (Tianquan Food Co., Ltd.) and 150 parts of ethyl acetate. After cooling down and stirring thoroughly, gradually add 10 parts of pyridine dropwise. Washed with absolute ethanol, filtered and dried Modified starch 2 , The degree of substitution was determined to be 2.30. 2. Preparation of core-shell particles with three-layer structure

Embodiment 3

[0048] With 100 parts in embodiment 2 Modified starch 2 with 50 parts of 2-methylene-1,3-dioxetane 50 parts of n-butyl itaconate were mixed and added to 300 parts of deionized water, fully stirred at room temperature for 30 minutes, then 1 part of initiator azobisisobutyronitrile was added, the temperature was raised to 60°C, stirred and polymerized, reacted for 8 hours, added 10 parts of styrene (Hangzhou Jessica Chemical Co., Ltd.), reacted for 3 hours, added ethanol to wash, filtered and dried to prepare a three-layer structure Easily Formable Core-Shell Particles 1 , The measured particle size is listed in Table 1.

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Abstract

The invention discloses an easily-shaped three-layer core-shell particle toughened polymer composite material and a preparation method thereof. The composite material is obtained by mixing the following raw material components: 100 parts by weight of a polymer and 1-100 parts by weight of three-layer core-shell particles, wherein the polymer comprises a thermosetting polymer and a thermoplastic polymer, and the core-shell particles are composed of a bio-based hard core portion, a soft inner shell layer and a hard outer shell layer. The method provided by the invention can complete plasticization processing of the composite material without a plasticizer and the like, the outermost hard shell layer can effectively enhance a substrate of the composite material while toughening the polymer, the composite material has the advantages of high production efficiency, easy processing and shaping, low costs, a simple process and controllable performance, and the method is suitable for preparingcomposite materials meeting various performance requirements.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an easy-to-form three-layer core-shell particle toughened polymer composite material and a preparation method thereof. Background technique [0002] With the gradual reduction of fossil energy reserves, the global energy crisis is looming. The energy structure dominated by fossil energy is obviously unsustainable. The use of fossil energy is also a key factor causing environmental change and pollution. Due to the decrease of global fossil resources, the traditional chemical industry at the cost of fossil resources and the environment is facing an increasingly severe situation. Making full use of biomass resources to replace fossil resources, synthesizing polymer materials or raw materials required for production is very important for getting rid of high The fact that molecular materials products and raw materials depend on petrochemical resources is of great significa...

Claims

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Application Information

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IPC IPC(8): C08L79/08C08L63/00C08L61/06C08L67/04C08L69/00C08L59/00C08L51/02
CPCC08L59/00C08L61/06C08L63/00C08L67/04C08L69/00C08L79/08C08L2207/53C08L51/02
Inventor 东为富汪洋李婷吴正贵董新一陈明清
Owner JIANGNAN UNIV
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