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Irradiation cross-linked chlorinated polyethylene rubber for LED lamp string and preparation method thereof

A technology of chlorinated polyethylene and LED light strings, which is applied in the directions of plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problems of poor flame retardant performance, surface cracking, whitening, etc., and achieves a simple preparation method. , the effect of good tensile strength

Active Publication Date: 2022-03-15
NEW NAVIGATOR PLASTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current PVC plastic materials have the following problems: weather resistance, such as light aging, waterproof performance, products generally have poor weather aging resistance, easy to age and damage, resulting in waste of resources; poor appearance: easy to change color, surface cracks, wrinkling; waterproof Poor performance, whitening after soaking in rainwater; poor flame retardant performance
[0003] Moreover, traditional rubber wire and cable production mostly uses high-temperature steam vulcanization technology, which requires boilers to provide high-temperature steam at about 200°C, which consumes a lot of energy and produces high production costs. under control

Method used

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  • Irradiation cross-linked chlorinated polyethylene rubber for LED lamp string and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0053] As a preferred embodiment, the weight ratio of the triallyl isocyanurate to N-allyl-1H-benzimidazol-2-amine is (4-8):1.

[0054] As a preferred embodiment, the weight ratio of the triallyl isocyanurate to N-allyl-1H-benzimidazol-2-amine is 6:1.

[0055] In the present application, the cross-linking auxiliary agent is added to accelerate the progress of the cross-linking reaction through energy transfer or promote the generation of free radicals and stabilize free radicals, forming a three-dimensional network rubber structure. The applicant found that adding a crosslinking assistant can also improve the aging resistance of the rubber. The possible reason is that the -NH and imidazole rings on the N-allyl-1H-benzimidazol-2-amine in the crosslinking assistant The formation of hydrogen bonds can carry out energy transfer and stimulate the cross-linking reaction between the allyl group on N-allyl-1H-benzimidazol-2-amine and chlorinated polyethylene, thus becoming a part of t...

Embodiment 1

[0070] The chlorinated polyethylene rubber used for LED light strings, in parts by weight, the rubber raw material includes the following components: 20 parts of chlorinated polyethylene, 50 parts of reinforcing agent, 5 parts of plasticizer, 1 part of lubricant, 0.5 parts of auxiliary crosslinking agent, 2 parts of active magnesium oxide.

[0071] Wherein, the chlorinated polyethylene was purchased from Hangzhou Keli Chemical Co., Ltd., the model is CM352L.

[0072] The reinforcing agent is talcum powder and white carbon black, and the weight ratio of talc powder and white carbon black is 1:1.

[0073] The plasticizer is dioctyl terephthalate.

[0074] The lubricant is calcium stearate and white paraffin, the weight ratio of the calcium stearate and white paraffin is 2:1, and the white paraffin is fully refined white paraffin.

[0075] The auxiliary crosslinking agent is triallyl isocyanurate and N-allyl-1H-benzimidazol-2-amine, and the triallyl isocyanurate and N-ene The ...

Embodiment 2

[0082] The chlorinated polyethylene rubber used for LED light strings, in parts by weight, the rubber raw material includes the following components: 45 parts of chlorinated polyethylene, 100 parts of reinforcing agent, 12 parts of plasticizer, 5 parts of lubricant, 2 parts of co-crosslinking agent, 5 parts of active magnesium oxide.

[0083] Wherein, the chlorinated polyethylene was purchased from Hangzhou Keli Chemical Co., Ltd., the model is CM352L.

[0084] The reinforcing agent is talcum powder and white carbon black, and the weight ratio of talc powder and white carbon black is 1:1.

[0085] The plasticizer is dioctyl terephthalate.

[0086] The lubricant is calcium stearate and white paraffin, the weight ratio of the calcium stearate and white paraffin is 2:1, and the white paraffin is fully refined white paraffin.

[0087] The auxiliary crosslinking agent is triallyl isocyanurate and N-allyl-1H-benzimidazol-2-amine, and the triallyl isocyanurate and N-ene The weight...

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Abstract

The invention belongs to the technical field of wire and cable materials, and in particular relates to irradiation crosslinked chlorinated polyethylene rubber used for LED lamp strings and a preparation method thereof. A chlorinated polyethylene rubber used for LED light strings, the rubber raw material includes the following components in parts by weight: 20-45 parts of chlorinated polyethylene, 50-80 parts of reinforcing agent, 5-80 parts of plasticizer 12 parts, 1-5 parts of lubricant, 0.5-2 parts of auxiliary cross-linking agent, 2-5 parts of active magnesium oxide, said auxiliary cross-linking agent is selected from methyl methacrylate, maleic vinyl propyl acetate, di Hexylene glycol methacrylate, triallyl isocyanurate, divinylbenzene, glycol dimethacrylate, trimethylolpropyl trimethacrylate, N‑allyl‑ at least one of 1H-benzimidazol-2-amines. The chlorinated polyethylene rubber does not need to be vulcanized, has a simple preparation method, good tensile strength and aging resistance.

Description

technical field [0001] The invention belongs to the technical field of wire and cable materials, and in particular relates to irradiation crosslinked chlorinated polyethylene rubber used for LED lamp strings and a preparation method thereof. Background technique [0002] LED light strings (LED rainbow lights, holiday lights) are widely used in lighting engineering, festival decoration, decorative light modeling and other fields. At present, the wire insulation layer used in LED light string connection wires and power cords is mainly soft PVC material, which has high transparency and is easy to process. It is widely used in the production of LED light strings by extrusion molding. However, the current PVC plastic materials have the following problems: weather resistance, such as light aging, waterproof performance, products generally have poor weather aging resistance, easy to age and damage, resulting in waste of resources; poor appearance: easy to change color, surface crac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L91/06C08K13/02C08K3/34C08K3/04C08K3/36C08K5/12C08K5/098C08K3/22C08J7/18H01B3/44
CPCC08J7/18H01B3/441C08J2323/28C08J2491/06C08K13/02C08K3/34C08K3/04C08K3/36C08K5/12C08K5/098C08K2003/222
Inventor 李颖熙
Owner NEW NAVIGATOR PLASTICS
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