High-elasticity halogen-free flame-retardant thermoplastic elastomer and preparation method thereof

A technology of thermoplastic elastomer and high elasticity, which is applied in the field of polymer materials, can solve the problems of large amount of flame retardant added, reduced mechanical properties of materials, poor compatibility, etc., and achieves good processing formability, good compatibility, good The effect of flame retardancy and mechanical properties

Inactive Publication Date: 2019-12-03
天津泰煜辉新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the halogen-free flame-retardant thermoplastic elastomers on the market are mainly flame-retardant thermoplastic elastomers filled with inorganic flame retardants, and this type of elastomer has a large amount of flame retardants and poor compatibility, which greatly reduces the mechanical properties of the material.

Method used

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  • High-elasticity halogen-free flame-retardant thermoplastic elastomer and preparation method thereof

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preparation example Construction

[0020] Its preparation method comprises the following steps:

[0021] S1. Weigh the thermoplastic elastomer TPV, melamine phosphate, resorcinol bis(diphenyl phosphate), expandable graphite and polysiloxane by weight;

[0022] S2. First put the melamine phosphate and resorcinol bis(diphenyl phosphate) weighed in step S1 in a high-speed mixer, mix at a speed of 600r / min for 3min, and then add expandable graphite and polysilicon For boroxane, keep the speed constant, mix for 5 minutes, and finally add thermoplastic elastomer TPV, keep the speed constant, mix for 6 minutes, until all materials are mixed evenly;

[0023] S3. Discharge the homogeneously mixed raw materials in step S2 from the high-speed mixer, pour them into the feeder, and feed them into the twin-screw extruder for extrusion. The main engine speed of the twin-screw extruder is 600r / min, the temperature of the twin-screw extruder is 190°C;

[0024] S4. Stranding the material extruded in step S3, cooling to room t...

Embodiment 2

[0026] A highly elastic halogen-free flame-retardant thermoplastic elastomer proposed by the present invention includes the following raw materials in weight percentage: thermoplastic elastomer TPV 75%, melamine phosphate 10%, resorcinol bis(diphenyl phosphate) 8% , Expandable graphite 5%, polysiloxane 2%.

[0027] Its preparation method comprises the following steps:

[0028] S1. Weigh the thermoplastic elastomer TPV, melamine phosphate, resorcinol bis(diphenyl phosphate), expandable graphite and polysiloxane by weight;

[0029] S2. First put the melamine phosphate and resorcinol bis(diphenyl phosphate) weighed in step S1 in a high-speed mixer, mix at a speed of 300r / min for 5min, and then add expandable graphite and polysilicon For boroxane, keep the speed constant, mix for 3 minutes, and finally add thermoplastic elastomer TPV, keep the speed constant, mix for 8 minutes, until all materials are mixed evenly;

[0030] S3. Discharge the homogeneously mixed raw materials in ...

Embodiment 3

[0033] A highly elastic halogen-free flame-retardant thermoplastic elastomer proposed by the present invention includes the following raw materials in weight percentage: thermoplastic elastomer TPV 75%, melamine phosphate 15%, resorcinol bis(diphenyl phosphate) 5% , Expandable graphite 4%, polysiloxane 1%.

[0034] Its preparation method comprises the following steps:

[0035] S1. Weigh the thermoplastic elastomer TPV, melamine phosphate, resorcinol bis(diphenyl phosphate), expandable graphite and polysiloxane by weight;

[0036] S2. First put the melamine phosphate and resorcinol bis(diphenyl phosphate) weighed in step S1 in a high-speed mixer, mix at a speed of 500r / min for 2min, and then add expandable graphite and polysilicon For boroxane, keep the speed constant, mix for 4 minutes, and finally add thermoplastic elastomer TPV, keep the speed constant, mix for 7 minutes, until all materials are mixed evenly;

[0037] S3. Discharge the homogeneously mixed raw materials in ...

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Abstract

The invention discloses a high-elasticity halogen-free flame-retardant thermoplastic elastomer. The high-elasticity halogen-free flame-retardant thermoplastic elastomer comprises the following raw materials in percentage by weight: 60%-80% of polyolefin thermoplastic elastomers, 5%-20% of a phosphorus nitrogen flame retardant, 1%-15% of an organic phosphorus flame retardant, 1%-15% of an intumescent flame retardant and 1%-10% of silicon polymers, and the total weight percentage is 100%. The high-elasticity halogen-free flame-retardant thermoplastic elastomer has good flame-retardant property and mechanical property and has good compatibility, the problems of large addition amount of an inorganic flame retardant and reduction of the mechanical property of an inorganic halogen-free flame-retardant thermoplastic elastomer commonly used in the market are solved, the preparation method is simple, the preparation cost is low, and the prepared high-elasticity halogen-free flame-retardant thermoplastic elastomer is good in processing moldability, high in material recovery rate and environmentally friendly, has certain economic and social benefits and can be widely used.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a highly elastic halogen-free flame-retardant thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomers, as the third generation of rubber, have achieved extremely rapid development all over the world. Due to the special phase structure, the elastomer has the characteristics of rubber and plastic at the same time, the continuous phase provides excellent processing performance, and the rubber particles as the dispersed phase make the elastomer have high elasticity. Thermoplastic elastomers have become the newest materials to replace traditional rubber, and are widely used in the automotive industry, wire and cable, household appliances, shoe materials, medical treatment and pipe materials. Flame retardancy is an important property of polymer materials, and it is also a key property of thermoplastic elastomers that...

Claims

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Application Information

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IPC IPC(8): C08L101/12C08L83/08C08K5/3492C08K5/523C08K7/24
CPCC08L101/12C08L2201/02C08L2201/22C08L2207/04C08L83/08C08K5/34928C08K5/523C08K7/24
Inventor 陈方斌霍凯冯振涛王锋
Owner 天津泰煜辉新材料科技有限公司
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