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Combination composed of SEBS recycled materials and high-strength halogen-free flame-retardant insulating material prepared from combination

A technology of recycled materials and compositions, applied in the field of high-strength halogen-free flame-retardant insulating materials, which can solve problems such as poor hand feeling, low tensile strength, low elongation at break, and poor processing performance

Inactive Publication Date: 2016-01-20
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle size, dosage and compatibility of inorganic substances often lead to a serious imbalance between the flame retardancy and physical and mechanical properties of the material. Therefore, most of the mechanical properties such as tensile strength and elongation at break are low, and the processing performance is not good. High hardness, poor hand feeling, etc.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0068] Yet another aspect of the present invention provides a method for preparing the high-strength halogen-free flame-retardant insulating material, comprising:

[0069] (1) After mixing the composition using recycled SEBS by weight, extruding and granulating through twin-screw;

[0070] (2) The product obtained in step (1) is vacuum-injected into a mold at 170° C. to 200° C., kept at the temperature for 0.5 to 20 hours under vacuum conditions, and then cooled and solidified.

[0071] In one embodiment, the preparation method of the high-strength halogen-free flame-retardant insulating material further includes:

[0072] Soak the insulating material obtained in step (2) in polyphosphoric acid, keep it at 120-180° C. for 3-8 hours, wash it with deionized water until it is neutral, and dry it in vacuum to obtain a further cross-linked insulating material.

Embodiment 1

[0116] After mixing 100 parts by weight of A1, 40 parts by weight of B1, 10 parts by weight of C1, 1 part by weight of D1 and 1 part by weight of E1, granulate by twin-screw extrusion;

[0117] Vacuum injection mold the product obtained above into a mold at 190°C, keep the temperature for 5 hours, then cool and solidify to obtain a preliminary product;

[0118] The above preliminary product was soaked in polyphosphoric acid, kept at 140°C for 5 hours, washed with deionized water until neutral and dried in vacuum to obtain a halogen-free flame-retardant insulating material.

Embodiment 2

[0120] After mixing 100 parts by weight of A2, 40 parts by weight of B2, 10 parts by weight of C1, 1 part by weight of D1 and 1 part by weight of E1, granulate by twin-screw extrusion;

[0121] Vacuum injection mold the product obtained above into a mold at 190°C, keep the temperature for 5 hours, then cool and solidify to obtain a preliminary product;

[0122] The above preliminary product was soaked in polyphosphoric acid, kept at 140°C for 5 hours, washed with deionized water until neutral and dried in vacuum to obtain a halogen-free flame-retardant insulating material.

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PUM

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Abstract

The invention discloses a combination composed of SEBS recycled materials. The combination comprises sulfonated SEBS recycled materials, MAH-g-PP, sulfonated polybenzimidazole modified graphene oxide, 2, 2'-bis(4-carboxyl phenoxy)biphenyl-4,4'-diamine and 1-10 weight parts of 2, 2'-bis(4-(1H-benzimidazole-2-base) phenoxy) benzidine. The invention further discloses a high-strength halogen-free flame-retardant insulating material obtained prepared from the combination and a preparation method of the high-strength halogen-free flame-retardant insulating material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and more specifically, the invention relates to a composition using recycled SEBS and a high-strength halogen-free flame-retardant insulating material obtained therefrom. Background technique [0002] Thermoplastic elastomer TPE (Thermoplastic Elastomer) is environmentally friendly, non-toxic and safe, with a wide range of hardness, excellent colorability, soft touch, weather resistance, fatigue resistance and temperature resistance, excellent processing performance, no need for vulcanization, and can be recycled to reduce costs. It can be double-injected, coated and bonded with PP, PE, PC, PS, ABS and other base materials, or can be formed separately. Therefore, it is very suitable to replace PVC to prepare insulating materials. In the prior art, inorganic flame retardants are generally added to TPE materials to prepare materials with high flame-retardant grades. However, the parti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L51/06C08K9/06C08K9/04C08K3/04C08K5/18C08K5/3447C08J3/24
Inventor 张惠良
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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