Halogen-free flame retardant thermoplastic elastomer composite material and preparation method thereof

A thermoplastic elastomer and composite material technology, applied in the direction of plastic/resin/wax insulators, conductors, insulated conductors, etc., can solve the deterioration of the mechanical properties of the flame-retardant material matrix, low flame-retardant efficiency of magnesium hydroxide, low flame-retardant efficiency, etc. problems, to achieve the effect of improving mechanical and mechanical properties, good mechanical properties, and improving flame retardant efficiency

Active Publication Date: 2013-12-11
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant efficiency of magnesium hydroxide is low, and the compatibility with the matrix resin is poor. When it is used alone to achieve a certain flame retardancy, it requires a large amount of filling (more than 60%), and it is easy to cause serious deterioration of the mechanical properties of the flame retardant material matrix. , and lead to processing difficulties; expandable graphite (EG) is rich in resources, low in price, low in smoke, and non-toxic, and has become a hot spot in the current research on halogen-free flame retardants
However, when EG flame-retardant polyolefin polymers are used alone, there is also the problem of low flame-retardant efficiency, and the same is true for zinc borate

Method used

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  • Halogen-free flame retardant thermoplastic elastomer composite material and preparation method thereof
  • Halogen-free flame retardant thermoplastic elastomer composite material and preparation method thereof
  • Halogen-free flame retardant thermoplastic elastomer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This example provides a halogen-free flame-retardant thermoplastic elastomer composite material, and its raw material formula is shown in Table 1 in terms of weight percentage:

[0058] Table 1, the raw material formula of the halogen-free flame-retardant thermoplastic elastomer composite material provided in Example 1.

[0059]

[0060] Its preparation method is as follows: 1), ingredient weighing: weigh various raw materials according to the formula. Namely, SEBS, PP, metallocene polyethylene, white mineral oil, resorcinol bis(diphenyl phosphate), PP-g-MAH, magnesium hydroxide, melamine polyphosphate, polypentyl glycol, expandable graphite , simethicone and antioxidant 168.

[0061] 2), powder mixing: mix the weighed SEBS, PP, metallocene polyethylene, white mineral oil, resorcinol bis(diphenyl phosphate), PP-g-MAH, magnesium hydroxide, melamine polyphosphate The salt, polypentyl glycol, expandable graphite, simethicone and antioxidant 168 are poured into a high...

Embodiment 2

[0064] This example provides a halogen-free flame-retardant thermoplastic elastomer composite material, and its raw material formula is shown in Table 2 in terms of weight percentage:

[0065] Table 2, the raw material formula of the halogen-free flame-retardant thermoplastic elastomer composite material provided in Example 2.

[0066]

[0067] Its preparation method is as follows: 1), ingredient weighing: weigh various raw materials according to the formula. Namely SEBS, PP, metallocene polyethylene, naphthenic oil, bisphenol A bis(diphenyl phosphate), SEBS-g-MAH, zinc borate, melamine cyanurate, silicone powder and antioxidant 1010.

[0068] 2), powder mixing: mix the weighed SEBS, PP, metallocene polyethylene, naphthenic oil, bisphenol A bis(diphenyl phosphate), SEBS-g-MAH, zinc borate, melamine cyanurate , silicone powder and antioxidant 1010 are poured into a high-speed mixer and stirred evenly, and then discharged to obtain a mixed material.

[0069] 3) Extrusion gr...

Embodiment 3

[0071] This example provides a halogen-free flame-retardant thermoplastic elastomer composite material, and its raw material formula is shown in Table 3 in terms of weight percentage:

[0072] Table 3, the raw material formula of the halogen-free flame-retardant thermoplastic elastomer composite material provided in Example 3.

[0073]

[0074] Its preparation method is as follows: 1), ingredient weighing: weigh various raw materials according to the formula. Namely SEBS, PP, metallocene polyethylene, paraffin oil, bisphenol A bis(diphenyl phosphate), EVA-g-MAH, zinc borate, organic hypophosphite, polyethylene wax and antioxidant 618.

[0075] 2), powder mixing: mix the weighed SEBS, PP, metallocene polyethylene, paraffin oil, bisphenol A bis(diphenyl phosphate), EVA-g-MAH, zinc borate, organic hypophosphite, poly Ethylene wax and antioxidant 618 are poured into a high-speed mixer, stirred evenly, and discharged to obtain a mixed material.

[0076] 3) Extrusion granulati...

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Abstract

The invention belongs to the technical field of high polymer materials and particularly relates to a halogen-free flame retardant thermoplastic elastomer composite material. The halogen-free flame retardant thermoplastic elastomer composite material comprises the following components in percentage by weight according to a raw material formula: 25-45 percent of SEBS (Styrenic Block Copolymer), 15-25 percent of polypropylene, 5-15 percent of metallocene polyethylene, 5-15 percent of a flame retardant synergist, 5-15 percent of a soften plasticizer, 15-25 percent of a flame retardant, 3-5 percent of a compatilizer, 0.1-1 percent of an antioxidant and 0.5-2 percent of a processing aid, wherein the flame retardant is a mixture of an inorganic flame retardant and an organic flame retardant; the organic flame retardant is at least one of melamine cyanurate, melamine pyrophosphate, organic hypophosphite and pentaerythritol; the inorganic flame retardant is at least one of zinc borate, magnesium hydroxide and expansible graphite; the mass ratio of the inorganic flame retardant to the organic flame retardant is (0.1-10):1. The composite material disclosed by the invention has the advantages of favorable flame-retardant performance and mechanical property and easiness for processing and forming.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant thermoplastic elastomer composite material and a preparation method thereof. Background technique [0002] PVC is a commonly used insulating material for cables. However, PVC has poor thermal stability. Therefore, when the cable is powered on for a long time and exposed to sunlight, the outer layer of PVC insulating material is prone to aging and failure, causing safety hazards. At the same time, PVC insulating material During the long-term heating and aging process, toxic chlorine-containing organic compounds will be released, polluting the environment, and not in line with the concept of sustainable development. [0003] With the increasing awareness of environmental protection, people are constantly looking for new materials to replace PVC as the sheath of cables. For example, styrene-ethylene / butylene-styrene block copolym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L23/06C08K13/02C08K5/3492C08K5/053C08K3/38C08K3/22C08K5/523C08K13/04C08K7/24C08K3/04H01B3/44H01B7/295
Inventor 刘悦钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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