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Colorless transparent resin lens containing cobalt oxide nanometer material and manufacturing method thereof

A technology of nanomaterials and transparent resins, applied in glasses/goggles, optics, instruments, etc., can solve the problems of poor dispersion of inorganic materials, and achieve the effects of improved dispersion, improved thermal performance, and excellent heat resistance

Active Publication Date: 2016-09-21
JIANGSU SHIKEXINCAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor dispersion of inorganic materials in polymer resin materials, the application of transition metal oxide nanomaterials in the field of optical lenses has been restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Preparation of core-shell structure cobalt oxide nanoparticles

[0024] To 1000mL cobalt sulfate aqueous solution with a concentration of 1mol / L, add NaOH aqueous solution dropwise to precipitate the precipitate. The pH of the aqueous solution is between 8-9. At 50°C, add hydrochloric acid to dissolve the precipitate to obtain cobalt oxide hydrosol with a pH of 3. -4. Add 100mL of sodium n-butyrate aqueous solution with a concentration of 2mol / L, and after stirring for 40 minutes, nano-cobalt oxide particles are formed. After separation and dehydration, dry at 50°C to constant weight to obtain cobalt oxide nanoparticles with a core-shell structure. , the particle size is 20-50nm.

Embodiment 2

[0026] Prepare a colorless transparent resin optical lens according to the following steps:

[0027] (1) Preparation of toner solution: 0.16 g of blue ultramarine blue (commercially available) was added to 1 kg of macromolecular monomer CR39, and 0.3 g of red ultramarine blue (commercially available) was added to 1 kg of macromolecular monomer CR39.

[0028] (2) Pre-polymerization: the cobalt oxide nanomaterial prepared in Example 1 was dispersed and dissolved in the CR39 macromolecular monomer, and the addition amount of the nanomaterial was 0.012% of the weight of the macromolecular monomer. After filtering, a commercially available ultraviolet absorber UV531 (chemical name: 2-hydroxy-4-octyloxybenzophenone) was added, and the amount of the ultraviolet absorber added was 0.03% of the weight of the macromolecular monomer. Add initiator diisopropyl peroxycarbonate subsequently, and the addition amount of initiator is 2.8% of macromolecular monomer weight. Then add the toner s...

Embodiment 3

[0036] Prepare a colorless transparent resin optical lens according to the following steps:

[0037] (1) Pre-polymerization: the cobalt oxide nanomaterial prepared in Example 1 is dispersed and dissolved in the macromolecular monomer (CR39), and the addition amount of the nanomaterial is 0.024% of the weight of the macromolecular monomer. After filtering, add commercially available ultraviolet light Absorber UV531, the addition amount of the ultraviolet absorber is 0.03% of the weight of the monomer, and then the initiator diisopropyl peroxycarbonate is added, and the addition amount of the initiator is 2.8% of the weight of the monomer. Then add the toner solution as described in Example 2, the total amount of the toner solution added is 0.335% of the weight of the macromolecular monomer, and the ratio of blue to red is 1.5:1. Polymerize at 45°C for 3 hours to obtain a prepolymer.

[0038] (2) Mold filling and curing: the above-mentioned prepolymer was filtered and filled in...

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PUM

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Abstract

A colorless and transparent resin lens containing cobalt oxide nanomaterials, which is doped with core-shell structure cobalt oxide nanoparticles; and its manufacturing method: dispersing and dissolving core-shell structure cobalt oxide nanoparticles in polymer monomers, filtering , add an initiator to the mixed liquid, add toner to adjust the color of the mixed liquid to colorless, heat the polymerization reaction to obtain a prepolymer; fill the prepolymer into the cavity of the mold after filtering, and put the mold into Carry out 15-20 hours of programmed temperature curing in the temperature-programmed furnace, then mold opening, edging, and cleaning; then put the edging and cleaned lenses into the secondary curing oven, and cure at 120-140°C for 2-3 hours , to obtain optical resin lenses. The resin lens manufactured by the method has high light transmittance, good visibility, excellent wear resistance and heat resistance.

Description

technical field [0001] The invention belongs to a colorless resin optical lens, in particular to a resin optical lens containing cobalt oxide nanoparticles. Background technique [0002] Since the birth of resin lenses, manufacturers have been pursuing how to further improve the performance of light and transparent resin lenses. However, due to the low surface hardness and poor wear resistance of polymer resin materials, multiple processes such as hardening and coating are often required in the manufacturing process. [0003] The characteristic spectral absorption of transition metal oxide nanomaterials enables them to shield γ-rays, X-rays, and ultraviolet rays, selectively transmit or absorb part of visible light, and selectively transmit or absorb part of infrared rays. Therefore, in the field of optical materials, both There are considerable application prospects. However, due to the poor dispersion of inorganic materials in polymer resin materials, the application of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/04G02B1/14G02C7/02C08K9/10C08K3/22
Inventor 程宏斌段然慧徐静涛初蓓刘洋段然宗边凤兰
Owner JIANGSU SHIKEXINCAI CO LTD