Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

White-light adhesive capable of reducing light attenuation speed of LED lamp beads

A technology of LED lights and pearlescent, applied in the field of white light glue, can solve the problems of LED light attenuation, poor high temperature resistance, easy yellowing, etc., achieve high Tg value, prolong service life, good yellowing resistance and weather resistance Effect

Inactive Publication Date: 2016-04-20
蒋柱明
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main materials of the existing white light glue are ordinary bisphenol A, bisphenol F epoxy resin and methyl tetrahydrophthalic anhydride. The high temperature resistance of this material is not good, and it is easy to yellow and cause LED light attenuation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A white light glue that can reduce the pearlescent decay speed of LED lamps, its molecular formula is A5-XB5-XO1-X, wherein A is at least one of the SINC elements;

[0018] B is at least one of the HF elements;

[0019] O is oxygen element;

[0020] X is 1-20.

[0021] The preparation method of the A component is: prepare A according to the following weight ratio: alicyclic epoxy resin: solid special epoxy resin: toughened epoxy resin = 30-parts: 35 parts: 40 parts, Add the above-mentioned A materials in turn in the mixer, heat up to 80 degrees to react, the reaction time is 4 hours, add 0.1 coloring agent dropwise, and stir slowly for 4 hours, after the reaction is completed, vacuumize for 1 hour, then filter to remove unreacted substances and solvent to obtain component A.

[0022] The preparation method of the B component is: prepare B according to the following proportion by weight: acid anhydride polymer curing agent: oxalanilide absorbent: hindered amine light ...

Embodiment 2

[0024] A white light glue that can reduce the pearlescent decay speed of LED lamps, its molecular formula is A5-XB5-XO1-X, wherein A is at least one of the SINC elements;

[0025] B is at least one of the HF elements;

[0026] O is oxygen element;

[0027] X is 1-20.

[0028] The preparation method of the A component is: prepare A according to the following proportion by weight: cycloaliphatic epoxy resin: solid special epoxy resin: toughened epoxy resin = 50 parts: 45 parts: 40 parts, in Add the above-mentioned materials A to the mixer in turn, heat up to 150 degrees to react, and the reaction time is 8 hours. Add 1‰ coloring agent dropwise and stir slowly for 8 hours. After the reaction, vacuumize for 1.5 hours, then filter to remove unreacted substances and solvent to obtain component A.

[0029] The preparation method of the B component is: prepare B according to the following proportion by weight: acid anhydride polymer curing agent: oxalanilide absorbent: hindered ami...

Embodiment 3

[0031] A white light glue that can reduce the pearlescent decay speed of LED lamps, its molecular formula is A5-XB5-XO1-X, wherein A is at least one of the SINC elements;

[0032] B is at least one of the HF elements;

[0033] O is oxygen element;

[0034] X is 1-20.

[0035] The preparation method of the A component is: prepare A according to the following proportion by weight: cycloaliphatic epoxy resin: solid special epoxy resin: toughened epoxy resin = 40 parts: 38 parts: 35 parts, in Add the above-mentioned materials A to the mixer in turn, heat up to 100 degrees to react, and the reaction time is 6 hours. Add 0.6‰ coloring agent dropwise and stir slowly for 6 hours. A component is obtained after solvent.

[0036] The preparation method of the B component is: prepare B according to the following proportion by weight: acid anhydride polymer curing agent: oxalanilide absorbent: hindered amine light stabilizer: phosphite antioxidant: urea Modified accelerator=70 parts: 3...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a white-light adhesive capable of reducing the light attenuation speed of LED lamp beads. The molecular formula of the white-light adhesive is A(5-X)B(5-X)O(1-X), wherein A is at least one of elements Si, N and C; B is at least one of elements H and F; O is the oxygen element; X is 1-20; A is prepared from the following components in parts by weight: 30-50 parts of cycloaliphatic epoxy resin, 30-50 parts of solid-state special epoxy resin and 30-40 parts of toughening epoxy resin; and B is prepared from the following components in parts by weight: 60-90 parts of anhydride polymer curing agent, 1-5 parts of oxanilide absorbent, 1-5 parts of hindered amine light stabilizer, 5-10 parts of phosphite antioxidant and 10-20 parts of urea modified accelerator. The finished product of an encapsulated white-light adhesive provided by the invention has the advantages of high Tg value and good resistance to yellowing and weather; and the service life is prolonged by reducing the LED light attenuation.

Description

technical field [0001] The invention belongs to the technical field of white light glue, and in particular relates to a white light glue that can reduce the decay speed of pearl light of LED lamps. Background technique [0002] White light glue is a material used to make white light color in LED packaging. It is a kind of epoxy resin. It is different from ordinary epoxy resin in that it basically does not contain chloride ions and chloride ion salts, and the end contains epoxy. It has similar reactivity with polyether polyol glycidyl ether type epoxy resin, and can be effectively cured with various curing agents such as acid anhydride, phenol, amine, and cationic curing agent. The cured finished product has a high Tg value and is resistant to The yellowing and weather resistance are better, and the problem of LED light decay is well controlled. At present, it is not only used for mixing rare earth phosphors in LED white light, but also can be used in a wide range of fields ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/06
CPCC08L2201/08C08L2205/02C08L2205/035C09J11/06C09J163/00C08L63/00C08K5/00C08K5/524
Inventor 蒋柱明
Owner 蒋柱明
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com