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Preparation method of glass/polymethyl methacrylate (PMMA) micro-nano interface structure laminated material

A technology of interface structure and laminated materials, applied in the direction of glass/slag layered products, chemical instruments and methods, layered products, etc., can solve the problems of reduced interface shear resistance and impact resistance, and reduce interface light Effects of reflection, increased contact area, impact resistance, and improved resistance to aging and fatigue

Inactive Publication Date: 2012-09-12
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology mainly uses interface modification (increasing the interface adhesion force!) to improve the interface adhesion performance, but it is easy to lead to the decrease of the interface shear resistance and impact resistance (Ou Yingchun, Feng Haibing, Lan Zhiwei, etc., " Research on the interface bond strength between polyurethane film and plexiglass", Journal of Wuhan University of Technology, 2009, 31, 103-105

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Using TEOS and PMHS with a mass ratio of 5 as raw materials, they were hydrolyzed in an ethanol solvent at pH=10 to prepare SiO with a solid content of 10%. 2 sol, and coated on the surface of soda lime silica glass with a thickness of 3 mm, cured at 80 ℃ under vacuum to prepare SiO 2 porous film. The PMMA prepolymer synthesized by the bulk polymerization method was coated on the porous film, preheated at 50 °C for 2 hours under vacuum, and then kept at 95 °C for 1 h under a nitrogen atmosphere with a pressure of 1.5 MPa to prepare a glass / PMMA layer. material. Scanning electron microscopy analysis of the cross-section of the sample showed that SiO 2 The thickness is 560 nm, and the pore size is 200-340 nm; UV-vis spectrophotometer tests show a transparency of 92% (550 nm) for the glass / PMMA laminate (total thickness 3.1 mm).

Embodiment 2

[0022] Using TEOS and PMHS with a mass ratio of 1 as raw materials, hydrolyzed in ethanol solvent under the condition of pH=10, SiO with a solid content of 10% 2 sol, and coated on the surface of soda lime silica glass with a thickness of 3 mm, cured at 80 ℃ under vacuum to prepare SiO 2 porous film. The PMMA prepolymer synthesized by the bulk polymerization method was coated on the porous film, preheated at 50 °C for 2 hours under vacuum, and then kept at 95 °C for 1 h under a nitrogen atmosphere with a pressure of 2.0 MPa to prepare a glass / PMMA layer. material. Scanning electron microscopy analysis of the cross-section of the sample showed that SiO 2 The thickness is 1.6 mm, and the pore size is 0.6-1.2 mm; UV-visible spectrophotometer tests show that the transparency of the laminate (total thickness 3.1 mm) is 90% (550 nm).

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Abstract

The invention relates to the field of composite materials and especially relates to a preparation method of a glass / polymethyl methacrylate (PMMA) micro-nano interface structure laminated material. The preparation method comprises the following steps that 1, polymethylhydrosiloxane and ethyl orthosilicate undergo a hydrolysis reaction under the alkaline conditions to produce silica sol; and the silica sol is coated on the surface of glass to form a silica porous film having aperture sizes of 0.2 to 2mm; 2, a methyl methacrylate monomer, a plasticizer and an initiator are mixed according to a certain ratio and then undergo prepolymerization to produce a PMMA prepolymer; 3, the silica porous film is coated with the PMMA prepolymer and then is subjected to heat treatment in vacuum; and 4, the silica porous film with the PMMA prepolymer undergoes heat treatment polymerization in a high-pressure nitrogen atmosphere to produce the glass / PMMA micro-nano interface structure laminated material. The glass / PMMA micro-nano interface structure laminated material has excellent performances of high transparency, impact resistance, fatigue resistance and aging resistance.

Description

technical field [0001] The invention relates to a method for preparing a glass / PMMA laminated material, in particular to a method for preparing a glass / PMMA micro-nano interface structure laminated material. Background technique [0002] Glass (inorganic) has good hardness, strength, optical properties and chemical stability, but is brittle and poor in impact resistance; while plexiglass (polymethyl methacrylate, PMMA) is easy to form, has good toughness and resistance Impact, but low hardness, easy to scratch the surface, easy to age. Organic-inorganic laminated materials take into account the advantages of high glass hardness, high temperature resistance, corrosion resistance and organic glass light weight, impact resistance, easy molding, etc., and achieve the best results in terms of strength, weight reduction, high temperature resistance, impact resistance, and long life. The optimized combination can replace traditional transparent materials and be used in aircraft wi...

Claims

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Application Information

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IPC IPC(8): C03C17/42B32B5/18B32B17/06C08L33/12
Inventor 卢金山刘望子
Owner NANCHANG HANGKONG UNIVERSITY
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