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Method for producing luminous organic glass embedded handicraft

A technology of plexiglass and production method, applied in the direction of decorative art, special decorative structure, etc., can solve the problems of aggravating the agglomeration, precipitation and layering of luminous powder, prolonging the polymerization reaction time, affecting product quality, etc.

Inactive Publication Date: 2011-08-24
SHAANXI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, there is a dynamic balance process of van der Waals force, electrostatic force and steric resistance in the polymerization system of luminous powder, which will inevitably lead to agglomeration, precipitation, stratification and other phenomena, which will affect its luminous effect
In addition, the luminous powder has a certain polymerization inhibition effect on the polymerization system, which will prolong the polymerization reaction time and intensify the agglomeration, precipitation and layering of the luminous powder in the polymerization system
On the other hand, improper handling of various animal and plant specimens, pebbles, photos, billboards and other inserts or other reasons introduce a large number of air bubbles into the polymerization system, affecting product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1,1) at first add the initiator dibenzoyl peroxide of methyl methacrylate monomer quality 0.3% in methyl methacrylate monomer, stir with magnetic stirrer, after initiator is dissolved completely Use a water bath to heat and prepolymerize at 90°C for 20 minutes until the system becomes viscous with glycerin, stop heating, and cool rapidly to obtain prepolymerization slurry;

[0020] The methyl methacrylate monomer is first washed 4 times with 10% NaOH and then washed 4 times with distilled water until the pH value of the monomer is close to 7, and then washed with anhydrous CaCl 2 Dry for 30 minutes, and finally carry out vacuum distillation.

[0021] 2) Then add 5% of the mass of methyl methacrylate monomer to the 1 / 3 of the prepolymerized slurry prepared in step 1) after water removal, grinding, and sieving until the particle size is 200-400 mesh luminous powder, 1.25% The anti-sedimentation agent silicon dioxide and 0.125% antifoaming agent tetramethoxysil...

Embodiment 2

[0024] Embodiment 2, 1) at first add the initiator azobisisobutyronitrile of methyl methacrylate monomer quality 0.5% in methyl methacrylate monomer, stir with magnetic stirrer, after initiator is completely dissolved Heat in a water bath, prepolymerize at 83°C for 28 minutes until the system becomes viscous with glycerin, stop heating, and cool rapidly to obtain prepolymerization slurry;

[0025] The methyl methacrylate monomer is first washed 3 times with 10% NaOH and then washed 4 times with distilled water until the pH value of the monomer is close to 7, and then washed with anhydrous CaCl 2 Dry for 50 minutes, and finally carry out vacuum distillation.

[0026] 2) Then add 20% of the mass of methyl methacrylate monomer to 2 / 3 of the pre-polymerization slurry prepared in step 1) after water removal, grinding, and sieving until the particle size is 200-400 mesh luminous powder, 5% The anti-precipitation agent sodium lauryl sulfate and 0.5% antifoaming agent simethicone, me...

Embodiment 3

[0029] Embodiment 3, 1) at first add the initiator dibenzoyl peroxide of methyl methacrylate monomer quality 0.4% in methyl methacrylate monomer, stir with magnetic stirrer, after initiator is dissolved completely Heat in a water bath, prepolymerize at 86°C for 23 minutes until the system becomes viscous with glycerin, stop heating, and cool rapidly to obtain prepolymerization slurry;

[0030] The methyl methacrylate monomer is first washed 3 times with 10% NaOH and then washed 4 times with distilled water until the pH value of the monomer is close to 7, and then washed with anhydrous CaCl 2 Dry for 60 minutes, and finally carry out vacuum distillation.

[0031] 2) Then, in 1 / 2 of the prepolymerized slurry prepared in step 1), add 15% of the mass of methyl methacrylate monomer after water removal, grinding, and sieving until the particle size is 200-400 mesh luminous powder, 2.5% The anti-precipitation agent sodium lauryl sulfate and 0.35% antifoaming agent tetramethoxysilane...

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PUM

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Abstract

The invention discloses a method for producing a luminous organic glass embedded handicraft. The method comprises the following steps of: adding an initiator into a methyl methacrylate monomer, and heating and reacting to obtain prepolymerization slurry; adding luminous powder, an antisettling agent and a defoaming agent into 1 / 3 to 2 / 3 of prepolymerization slurry, and casting the mixture into a mould for polymerization until slurry in the mould is in a solidification state; sequentially embedding an insert and casting the residual prepolymerization slurry, and polymerizing at the temperatures which are sequentially varied from high to low and are in gradient distribution; and finally, polymerizing at the temperature of 100 and 120 DEG C, demoulding, grinding, and polishing to obtain the luminous organic glass embedded handicraft. The luminous organic glass embedded handicraft produced by the method has the advantages that: one-time polymerization production time can be controlled to be between 4 and 6 hours; a luminous bottom layer has different colors and uniform luminescence; no bubble exists in an intermediate layer of the insert, and original appearances of various animal and plant specimens, pebbles, photos and billboards are maintained; and an upper transparent layer is high in transparency.

Description

technical field [0001] The invention relates to the production of plexiglass handicrafts by embedded casting and gradient polymerization, in particular to a production method of luminous plexiglass embedded handicrafts. Background technique [0002] With the improvement of people's awareness of energy saving and environmental protection, the acceleration of urban beautification process and the special needs in production and life, a series of luminous plexiglass products have emerged as the times require. Such products are not only energy-saving and environmentally friendly, but also have good transparency, aging resistance, not easy to break, light weight, easy to carry, beautiful appearance, easy to make, and can even imitate crystal, imitation pearl, imitation jade, imitation ivory, imitation agate, and are deeply loved by the public. People love it. It has a wide application space in the fields of decoration, identification, tourism, advertising, collection and so on. ...

Claims

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Application Information

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IPC IPC(8): C08F120/14C08F2/44B29C45/76B44C5/08
Inventor 袁新强冯小明丁继勇王岳云赵凯斌任金玲付蕾
Owner SHAANXI UNIV OF TECH
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