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A kind of low thermal resistance type low smoke halogen free cable material for ships and preparation method thereof

A technology of low thermal resistance and cable material, which is applied in the field of low thermal resistance low-smoke halogen-free cable material for ships and its preparation, can solve the problems of no heat conduction research, achieve the effect of reducing heat conduction cost, improving thermal conductivity and tensile strength

Active Publication Date: 2022-07-29
上海至正新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Chinese invention patent 109627565A mentions that the flame retardancy and mechanical properties of cable materials can be improved by using a special structure of benzoxazine resin, but this patent does not have further research on heat conduction

Method used

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  • A kind of low thermal resistance type low smoke halogen free cable material for ships and preparation method thereof
  • A kind of low thermal resistance type low smoke halogen free cable material for ships and preparation method thereof
  • A kind of low thermal resistance type low smoke halogen free cable material for ships and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In Example 1 and Example 2, the mass ratio of benzoxazine / aluminum nitride is 5:3, which can achieve a better effect of resin-wrapped filler, and its tensile strength and thermal conductivity are greatly improved, and due to benzene The addition amount of the oxazine / aluminum nitride thermally conductive filler is increased from 16 parts to 24 parts in Examples 1 to 2, and the thermal conductivity and tensile strength increase with the increase of its addition amount, but due to the consideration of cost, this patent is the highest Just add it to 30 servings, and it already has a significant performance improvement.

Embodiment 3

[0070] The added total mass of the benzoxazine / aluminum nitride thermally conductive filler of Example 3 and Example 4 is the same as that of Example 2, but the difference is that the mass ratio of benzoxazine / aluminum nitride in Example 3 is 5: 1. The mass ratio of benzoxazine / aluminum nitride in Example 4 is 1:1.

[0071] From the test data, it can be seen that in Example 3, due to the small proportion of thermally conductive fillers, although the benzoxazine resin increases the crosslinking density and also increases thermal conductivity, the main factor that increases thermal conductivity is aluminum nitride, which can be formed in polymers. Therefore, the tensile strength in Example 3 can reach 18.6Mpa due to the addition of benzoxazine, but the real number of thermal conductivity is only 1.3.

Embodiment 4

[0072] In Example 4, the proportion of thermally conductive fillers is high, but the benzoxazine resin is not enough to cover it completely. In this way, although a lot of aluminum nitride is added, the distribution is not uniform, and good thermal conductivity cannot be achieved. In addition, the proportion of benzoxazine resin is small, and the contribution to the improvement of crosslinking density is small, and the natural tensile strength is not as good as the implementation. Example 2.

[0073] figure 1 It is a 5:3 thermal conductive filler wrapping situation (the continuous phase is benzoxazine resin - examples 1, 2); figure 2 It is a 5:1 thermally conductive filler wrapping situation (the continuous phase is benzoxazine resin-Example 3); image 3 It is a 1:1 encapsulation of thermally conductive filler (continuous phase is benzoxazine resin - Example 4).

[0074] The advantages of using benzoxazine / aluminum nitride thermally conductive fillers to improve thermal co...

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Abstract

The invention discloses a low-thermal-resistance low-smoke halogen-free cable material for ships, which is characterized in that, in parts by weight, it includes the following components: 80-120 parts of EPDM rubber; 30-120 parts of composite flame-retardant filler 60 parts; 10-30 parts of benzoxazine / aluminum nitride thermally conductive filler; 3-6 parts of microcrystalline paraffin; 1-2 parts of antioxidant; 0.5-1 part of methyl imidazole; 2-6 parts of vulcanizing agent; vulcanization 1-3 parts of auxiliary; 3-6 parts of zinc oxide; 0.5-1 part of stearic acid; 1-2 parts of coupling agent. The invention also discloses its preparation method. Compared with the existing marine cable material, the cable material of the invention reduces the heat conduction cost and improves the thermal conductivity and tensile strength.

Description

technical field [0001] The invention relates to the field of cable material preparation, in particular to a low-thermal-resistance low-smoke halogen-free cable material for ships and a preparation method thereof. Background technique [0002] With the development of ship manufacturing technology, the conductor heating phenomenon is serious during the operation of degaussing cables. On the one hand, the heat increases the overall temperature of the cable, which limits the improvement of the current-carrying capacity of the cable; on the other hand, the traditional rubber used for degaussing cables The thermal conductivity of the insulating material is very low, and the thermal conductivity is extremely poor, so that the heat cannot be dissipated in time, which is extremely unfavorable for the service life of the cable. [0003] With the advantages of low dielectric loss, strong plasticity and high partial discharge resistance, EPDM rubber has been widely used in the main insu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/06C08K9/10C08K3/28C08K3/22C08K3/32
CPCC08L23/16C08L2201/02C08L2201/22C08L2203/202C08K2003/282C08K2003/2227C08K2003/2224C08K2201/005C08L91/06C08K13/06C08K9/10C08K3/28C08K3/22C08K3/32
Inventor 操婧婷李滨耀翁文彪
Owner 上海至正新材料有限公司
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