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A modified starch toughened polymethyl methacrylate composite material and its preparation method

A technology of polymethyl methacrylate and composite material is applied in the field of modified starch toughening polymethyl methacrylate composite material and preparation, and achieves the effects of high production efficiency, simple process and low cost

Active Publication Date: 2019-12-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Easy to achieve industrial production

Method used

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  • A modified starch toughened polymethyl methacrylate composite material and its preparation method
  • A modified starch toughened polymethyl methacrylate composite material and its preparation method
  • A modified starch toughened polymethyl methacrylate composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Mix 100 parts of corn starch (produced by Changchun Dacheng Corn Development Co., Ltd.) and 180 parts of methyl acetate (produced by Sinopharm Chemical Reagent Co., Ltd.) at 60°C, stir and mix thoroughly for 30 minutes, and then add pyridine dropwise while stirring. Chemical Reagent Co., Ltd.) 10 parts, after the dropwise addition was completed, the stirring was continued for 1 hour.

[0047] Then add 1 part of acryloyl chloride (produced by Shanghai Jingchun Biochemical Technology Co., Ltd.) dropwise and continue to stir for 30 minutes, add absolute ethanol (produced by Sinopharm Chemical Reagent Co., Ltd.) to wash, suction filter and dry.

[0048] Disperse 20 parts of the prepared modified starch, 0.2 part of potassium persulfate (produced by Sinopharm Chemical Reagent Co., Ltd.) in 100 parts of water, ultrasonically disperse to obtain an emulsion, add 20 parts of methyl acrylate (produced by Sinopharm Chemical Reagent Co., Ltd. ), stirred and reacted in a water bath ...

Embodiment 2

[0051]Mix 100 parts of tapioca starch (produced by Shanghai Jinzhao Food Co., Ltd.) and 180 parts of ethyl acetate (produced by Sinopharm Chemical Reagent Co., Ltd.) at 60°C, stir and mix thoroughly for 30 minutes, then add pyridine dropwise while stirring (Sinopharm Chemical Reagent Co., Ltd.) Reagent Co., Ltd.) 20 parts, after the dropwise addition was completed, the stirring was continued for 1 hour.

[0052] Then dropwise add 1 part of acryloyl chloride (produced by Shanghai Crystal Pure Biochemical Technology Co., Ltd.), 9 parts of stearyl chloride (produced by Shanghai Crystal Pure Biochemical Technology Co., Ltd.) and continue to stir for 30 minutes. Group Chemical Reagent Co., Ltd.) washed, filtered and dried.

[0053] Disperse 20 parts of the prepared modified starch, 0.2 parts of potassium persulfate (produced by Sinopharm Chemical Reagent Co., Ltd.) in 100 parts of water, ultrasonically disperse to obtain an emulsion, add 20 parts of ethyl acrylate (produced by Sino...

Embodiment 3

[0056] Mix 100 parts of soybean starch (produced by Shanghai Jinchao Food Co., Ltd.) and 180 parts of butyl acetate (produced by Sinopharm Chemical Reagent Co., Ltd.) at 60°C, stir and mix thoroughly for 30 minutes, and then add pyridine dropwise while stirring. Reagent Co., Ltd.) 30 parts, after the dropwise addition was completed, the stirring was continued for 1 hour.

[0057] Then dropwise add 2 parts of acryloyl chloride (produced by Shanghai Crystal Pure Biochemical Technology Co., Ltd.), 18 parts of stearyl chloride (produced by Shanghai Crystal Pure Biochemical Technology Co., Ltd.) and continue to stir for 30 minutes. Group Chemical Reagent Co., Ltd.) washed, filtered and dried.

[0058] Disperse 20 parts of the prepared modified starch, 0.2 parts of potassium persulfate (produced by Sinopharm Chemical Reagent Co., Ltd.) in 100 parts of water, ultrasonically disperse to obtain an emulsion, add 20 parts of butyl acrylate (produced by Sinopharm Chemical Reagent Co., Ltd...

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Abstract

The invention discloses a modified starch toughened polymethyl methacrylate composite material and a preparation method. The composite material is made by blending polymethyl methacrylate and starch-based toughened masterbatch; 60-99.5 parts by weight of polymethyl methacrylate, 0.5-40 parts by weight of starch-based toughened masterbatch; the starch-based The toughening masterbatch is prepared from raw materials including the following components: 100 parts by weight of modified starch, 50-200 parts by weight of vinyl monomer, 0.5-10 parts by weight of initiator, and 250-1000 parts by weight of water; the preparation method The method comprises: the modified starch toughened polymethyl methacrylate composite material is prepared after the components are blended according to the stated dosage. Modified starch-based toughened masterbatches were prepared by grafting modified starches, and composite materials were obtained by blending with polymethyl methacrylate. At the same time, the source of toughened masterbatches was biodegradable, environmentally friendly and low in cost, easy to Realize industrialized production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a modified starch toughened polymethyl methacrylate composite material and a preparation method thereof. Background technique [0002] The so-called plexiglass (also known as acrylic or acrylic), its main component is polymethyl methacrylate (PMMA), which is a kind of acrylic resin. Because plexiglass has many excellent properties, such as excellent light transmittance, chemical stability, good processability, good insulation, and the characteristics of light weight and high toughness compared with inorganic glass, it has been widely used. It is used in many fields such as aviation, construction, industrial transparent parts, optical instruments, etc. In recent years, acrylic, glass fiber reinforced sanitary ware series, large-format colorful light box billboards, sample display stands and other products that have emerged in China have greatly broadened the application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/12C08L51/02C08F251/00C08F220/14C08F220/18
CPCC08F251/00C08L33/12C08L2201/06C08L51/02C08F220/18C08F220/1802C08F220/1804
Inventor 李婷东为富陈明清马丕明
Owner JIANGNAN UNIV