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Ultraviolet crosslinking high-flame-retardant cable material

An ultraviolet light and high flame retardant technology, applied in the field of polymer materials, can solve the problems of rough surface, large investment in equipment, and generation of pores, etc., and achieve the effects of improving flame retardant performance, strong adaptability, and improving production efficiency

Pending Publication Date: 2022-05-20
FAR EAST CABLE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing CPE cable materials mostly use pipeline steam vulcanization, which requires a lot of equipment capital investment. When the flame retardant performance is high, a large amount of inorganic flame retardants need to be added to the formula, which is easy to absorb moisture. When vulcanized in steam, the cross section will appear. porosity, rough surface

Method used

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  • Ultraviolet crosslinking high-flame-retardant cable material
  • Ultraviolet crosslinking high-flame-retardant cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides an ultraviolet light crosslinking high flame retardant cable material and its preparation method, including:

[0028] Step Ⅰ.Batching: by mass parts, will:

[0029] 100 parts of chlorinated polyethylene, 20 parts of bisphenol A-bis(diphenyl phosphate), 15 parts of zinc borate, 50 parts of acicular wollastonite, 20 parts of magnesium hydroxide, 15 parts of calcium oxide, 5 parts of stearin Barium acid, 15 parts of zeolite 401PS, 5 parts of paraffin, 4 parts of UV absorber Chisorb-2990, and 3 parts of trimethylolpropane trimethacrylate.

[0030] Step Ⅱ. Mixing: first add the matrix resin to the internal mixer and mix for 1.5 minutes, and then add barium stearate, zeolite 401PS, paraffin, light absorbing agent, crosslinking agent, zinc borate, needle-shaped Wollastonite, magnesium hydroxide, calcium oxide, and trimethylolpropane trimethacrylate are mixed for 3 minutes; the mixing time for cleaning the tipping bucket and pressing the top bolt is 4 ...

Embodiment 2

[0034] Compared with Example 1, the only difference in this example is that the ratio of mass and number of ingredients has been adjusted, specifically 100 parts of chlorinated polyethylene, 25 parts of bisphenol A-bis(diphenyl phosphate), 10 parts of zinc borate , 40 parts of acicular wollastonite, 25 parts of magnesium hydroxide, 20 parts of calcium oxide, 10 parts of barium stearate, 10 parts of zeolite 401PS, 3 parts of paraffin, 5 parts of UV absorber Chisorb-2990, 4 parts of trihydroxy Methyl propane trimethacrylate, all the other conditions are then identical with embodiment 1.

Embodiment 3

[0036] Compared with Example 1, the only difference in this example is that the ratio of mass and number of ingredients has been adjusted, specifically 100 parts of chlorinated polyethylene, 30 parts of bisphenol A-bis(diphenyl phosphate), 5 parts of zinc borate , 30 parts of acicular wollastonite, 30 parts of magnesium hydroxide, 25 parts of calcium oxide, 15 parts of barium stearate, 5 parts of zeolite 401PS, 2 parts of paraffin, 6 parts of UV absorber Chisorb-2990, 5 parts of trihydroxy Methyl propane trimethacrylate, all the other conditions are then identical with embodiment 1.

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Abstract

The invention discloses an ultraviolet light crosslinking high-flame-retardant cable material, and belongs to the related technical field of polymer materials. Comprising the following components in parts by weight: 100 parts of matrix resin, 20-30 parts of bisphenol A-bis (diphenyl phosphate), 5-15 parts of zinc borate, 30-50 parts of needle-like wollastonite, 20-30 parts of magnesium hydroxide, 15-25 parts of calcium oxide, 5-15 parts of barium stearate, 5-15 parts of zeolite 401PS, 2-5 parts of paraffin, 4-6 parts of an ultraviolet absorbent and 3-5 parts of a cross-linking agent. The rubber type CPE with low chlorine content and low Mooney viscosity is adopted as the high-resistance fuel main rubber, the rubber extruder is matched with the LED ultraviolet crosslinking device, a traditional pipeline steam vulcanization mode is not needed, and the production efficiency is improved; bDP is applied to the CPE cable material and forms a flame-retardant system together with a crusting agent zinc borate, a flame-retardant synergist needle-like wollastonite and a flame retardant magnesium hydroxide, so that the flame-retardant property of CPE is improved; and a long-wavelength Chisorb-2990 light absorbent is matched with a crosslinking device, so that the crosslinking degree is improved.

Description

technical field [0001] The invention relates to the related technical field of polymer materials, in particular to an ultraviolet light cross-linked high flame-retardant cable material. Background technique [0002] In the UV cross-linking industry, medium-pressure mercury lamps were often used as radiation sources in the early days. They have a short lifespan of about 500 to 1000 hours. The light intensity decays quickly when used, and the emission wavelength range is wide. They can be used for cross-linking specific wavelength Part of it only accounts for 2 to 3% of the total power, and the crosslinking efficiency is particularly low. At the same time, the associated infrared light generates a large amount of heat, and high-power cooling equipment is required. To match the radiation dose required for high-speed production, it is necessary to The installed capacity of the equipment is large. [0003] In recent years, there is a kind of LED ultraviolet that can be used for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L91/06C08K5/523C08K3/38C08K7/10C08K3/22C08K13/04
CPCC08L23/286C08L2201/02C08L2203/202C08L2201/22C08L2312/06C08K2003/387C08K2003/2224C08K2003/2206C08L91/06C08K5/523C08K3/38C08K7/10C08K3/22C08K13/04Y02P20/10
Inventor 田维生黄敏建田玲王志鹏杨希王成
Owner FAR EAST CABLE