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Anti-aging LED string light and preparation method thereof

A technology of LED light strings and LED lamp beads, which is applied in lighting and heating equipment, damage prevention measures for lighting devices, semiconductor devices of light-emitting elements, etc. Overcoming problems such as the decrease of light transmittance, achieving good vulcanization acceleration, excellent comprehensive physical and mechanical properties, and shortening the vulcanization time

Inactive Publication Date: 2020-05-12
锐威环球科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, if the plastic cover made of rubber material is used outdoors, after a long period of exposure to the sun and rain, the plastic cover is more prone to aging, resulting in a decrease in the light transmittance of the plastic cover, making the LED light string The decoration effect has declined and needs to be improved

Method used

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  • Anti-aging LED string light and preparation method thereof
  • Anti-aging LED string light and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] An aging-resistant LED lamp string, comprising an FPC circuit board, a plurality of LED lamp beads electrically connected to the FPC circuit board, a sheath layer wrapped on the outside of the FPC circuit board and the LED lamp beads, and the sheath layer is calculated in parts by weight. The raw material composition of the layer is shown in Table 1.

[0055] Wherein, the antiaging agent adopts the mixture of antiaging agent D and antiaging agent 264.

[0056] like figure 1 As shown, the preparation method of the aging-resistant LED lamp string comprises the following steps:

[0057] S1, putting epoxidized soybean oil and dodecyl mercaptan into a four-necked flask, using alkali as a catalyst, introducing nitrogen protection, and reacting at 65-70°C to obtain modified epoxidized soybean oil;

[0058] S2, adding natural rubber and butadiene rubber into the internal mixer for mastication for 4-5min;

[0059] S3, put in white carbon black, anti-aging agent D, anti-aging ...

Embodiment 2

[0064] An aging-resistant LED lamp string, comprising an FPC circuit board, a plurality of LED lamp beads electrically connected to the FPC circuit board, a sheath layer wrapped on the outside of the FPC circuit board and the LED lamp beads, and the sheath layer is calculated in parts by weight. The raw material composition of the layer is shown in Table 1.

[0065] Wherein, the antiaging agent adopts the mixture of antiaging agent D and antiaging agent 264.

[0066] The preparation method of the aging-resistant LED lamp string comprises the following steps:

[0067] S1, putting epoxidized soybean oil and dodecyl mercaptan into a four-necked flask, using alkali as a catalyst, introducing nitrogen protection, and reacting at 65-70°C to obtain modified epoxidized soybean oil;

[0068] S2, adding natural rubber and butadiene rubber into the internal mixer for mastication for 4-5min;

[0069] S3, put in white carbon black, anti-aging agent D, anti-aging agent 264, modified epoxy...

Embodiment 3

[0074] An aging-resistant LED lamp string, comprising an FPC circuit board, a plurality of LED lamp beads electrically connected to the FPC circuit board, a sheath layer wrapped on the outside of the FPC circuit board and the LED lamp beads, and the sheath layer is calculated in parts by weight. The raw material composition of the layer is shown in Table 1.

[0075] Wherein, the antiaging agent adopts the mixture of antiaging agent D and antiaging agent 264.

[0076] The preparation method of the aging-resistant LED lamp string comprises the following steps:

[0077] S1, putting epoxidized soybean oil and dodecyl mercaptan into a four-necked flask, using alkali as a catalyst, introducing nitrogen protection, and reacting at 65-70°C to obtain modified epoxidized soybean oil;

[0078] S2, adding natural rubber and butadiene rubber into the internal mixer for mastication for 4-5min;

[0079] S3, put in white carbon black, anti-aging agent D, anti-aging agent 264, modified epoxy...

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Abstract

The invention discloses an anti-aging LED string light and a preparation method thereof, belonging to the technical field of lighting devices. The LED string light comprises an FPC circuit board, a plurality of LED lamp beads electrically connected to the FPC circuit board, and a sheath layer wrapping the FPC circuit board and the LED lamp beads. The sheath layer comprises the following raw materials by weight: 25-30 parts of natural rubber, 80 to 85 parts of butadiene rubber, 4-5 parts of zinc oxide, 0.5 to 1.5 parts of stearic acid, 15 to 20 parts of epoxidized soybean oil, 1 to 2 parts of dodecanethiol, 5-8 parts of an amine latent curing agent, 0.3 to 0.5 part of an anti-aging agent, 1-3 parts of a vulcanizing agent and 35-45 parts of a filler. Through cooperation of the natural rubberand the butadiene rubber, the sheath layer has good elasticity, wear resistance and weather resistance. The zinc oxide has a good vulcanization activation effect, and the stearic acid has a good dispersion effect and a good vulcanization promotion effect. The epoxidized soybean oil modified by dodecanethiol has a synergistic effect on the antioxidant, thereby improving the anti-aging effect of the system, so the sheath layer can maintain good light transmittance stability for a long time.

Description

technical field [0001] The invention relates to the technical field of LED lighting devices, more specifically, it relates to an aging-resistant LED lamp string and a preparation method thereof. Background technique [0002] LED light string, also known as LED light strip, refers to the assembly of LEDs on a strip-shaped FPC (flexible circuit board), named for its product shape like a strip. LED light strings are widely used because of their softness, thinness, and easy installation. [0003] The Chinese patent with the publication number CN110107830A discloses a flexible linear LED light strip, which includes a circuit board, the top surface of the circuit board is bonded with LED chips, and the top surface of the circuit board is bonded to one side of the corresponding LED chip. Resistor, the surface of the LED chip is covered with AB component and fluorescent powder mixed glue, and the outer surface of the circuit board is nested with a plastic sleeve. [0004] In the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L91/00C08K13/02C08K3/22C08K5/09C08K5/37C08K5/18C08K5/13C08K5/14C08K3/36C08K5/315C08K5/31F21S4/24F21V19/00F21V15/00F21Y115/10
CPCC08K2003/2296C08L9/00C08L2201/10C08L2205/03F21V15/00F21V19/003F21S4/24F21Y2115/10C08L7/00C08L91/00C08K13/02C08K3/22C08K5/09C08K5/37C08K5/18C08K5/13C08K5/14C08K3/36C08K5/3155C08K5/31
Inventor 巫俊林
Owner 锐威环球科技(深圳)有限公司
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