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Modified SEBS (styrene-ethylene/butadiene-styrene block copolymer) alloy and preparation method thereof

An alloy and modification technology, applied in the field of modified SEBS alloy and its preparation, can solve problems such as poor mechanical properties, and achieve the effects of improving application effect, increasing crystallinity, good physical properties and anti-aging properties

Active Publication Date: 2014-04-30
滁州格美特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SEBS has good stability, weather resistance, heat resistance and compression deformation resistance, but its mechanical properties are not very good

Method used

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  • Modified SEBS (styrene-ethylene/butadiene-styrene block copolymer) alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) First dissolve antimony nitrate and ammonium metachromate in nitric acid at a molar ratio of 1:1 to obtain a yellow solution; then add 3-nitro-1 with a molar ratio of 1:5:12 to antimony nitrate ,2,4-triazol-5-one (NTO), nano-TiO 2 Particles were further hydrothermally treated in a reactor at 160°C for 15 hours to obtain SbCrO 3 / TiO 2 nanocomposites.

[0028] (2) Mix 80 parts of SEBS resin, 2 parts of white oil, 25 parts of POE, SbCrO 3 / TiO 2 30 parts of nanocomposite materials were uniformly stirred in a high mixer for 10 minutes at room temperature.

[0029] (3) Melt the mixed material with a twin-screw extruder, extrude and pelletize, and then knead the pellets at 50°C to obtain a modified SEBS alloy. Among them, the temperature of zone 1 of the twin-screw extruder is 100°C, the temperature of zone 2 is 100°C, the temperature of zone 3 is 100°C, the temperature of zone 4 is 120°C, the temperature of zone 5 is 120°C, the temperature of zone 6 is 120°C, and t...

Embodiment 2

[0031] (1) First dissolve antimony nitrate and ammonium metachromate in nitric acid at a molar ratio of 1:1 to obtain a yellow solution; then add 3-nitro-1 with a molar ratio of 1:5:12 to antimony nitrate ,2,4-triazol-5-one (NTO), nano-TiO 2 Particles were further hydrothermally treated in a reactor at 180°C for 12 hours to obtain SbCrO 3 / TiO 2 nanocomposites.

[0032] (2) 100 parts of SEBS resin, 5 parts of white oil, 35 parts of POE, SbCrO 3 / TiO 2 40 parts of nanocomposite materials were uniformly stirred in a high mixer for 11 minutes at room temperature.

[0033] (3) Melt the mixed material with a twin-screw extruder, extrude and pelletize, and then knead the pellets at 60°C to obtain a modified SEBS alloy. The temperature of zone 1 of the twin-screw extruder is 120°C, the temperature of zone 2 is 120°C, the temperature of zone 3 is 120°C, the temperature of zone 4 is 160°C, the temperature of zone 5 is 160°C, and the temperature of zone 6 is 160°C. The temperature...

Embodiment 3

[0035] (1) First dissolve antimony nitrate and ammonium metachromate in nitric acid at a molar ratio of 1:1 to obtain a yellow solution; then add 3-nitro-1 with a molar ratio of 1:5:12 to antimony nitrate ,2,4-triazol-5-one (NTO), nano-TiO 2 Particles were further hydrothermally treated in a reactor at 170°C for 13h to obtain SbCrO 3 / TiO 2 nanocomposites.

[0036] (2) 85 parts of SEBS resin, 4 parts of white oil, 30 parts of POE, SbCrO 3 / TiO 2 35 parts of nanocomposite materials were uniformly stirred in a high mixer for 12 minutes at room temperature.

[0037] (3) Melt the mixed material with a twin-screw extruder, extrude and pelletize, and then knead the pellets at 60°C to obtain a modified SEBS alloy. The temperature of zone 1 of the twin-screw extruder is 110°C, the temperature of zone 2 is 120°C, the temperature of zone 3 is 110°C, the temperature of zone 4 is 140°C, the temperature of zone 5 is 150°C, and the temperature of zone 6 is 140°C The temperature in Zon...

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Abstract

The invention discloses a modified SEBS (styrene-ethylene / butadiene-styrene block copolymer) alloy and a preparation method thereof. The SEBS alloy is prepared from the following components in parts by weight: 80-100 parts of styrene block copolymer, 2-5 parts of white oil, 25-35 parts of polyolefin elastomer and 30-40 parts of antimony chromate / titanium dioxide nano composite material, wherein the antimony chromate / titanium dioxide nano composite material is synthesized by antimony nitrate, ammonium metachromate, 3-nitro-1, 2, 4- triazole-5-ketone and nano TiO2. According to the invention, the antimony chromate / titanium dioxide nano composite material is added, thus, degree of crystallinity of the SEBS alloy material is improved, and flexural modulus, hardness, tensile strength and other properties of the modified SEBS alloy are all improved to a greater extent.

Description

[0001] technical field [0002] The invention relates to the technical field of modified polymers, in particular to a modified SEBS alloy and a preparation method thereof. [0003] Background technique [0004] Styrene block copolymer (SEBS) is a new type of multi-purpose thermoplastic elastomer, which is called "the fourth generation rubber" in the scientific and technological circles. SEBS is a linear three-block copolymer with polystyrene as the terminal block and ethylene-butene copolymer obtained by hydrogenation of polybutadiene as the middle elastic block. SEBS has good stability, weather resistance, heat resistance and compression deformation resistance, but its mechanical properties are not very good. There are not many articles about the modified SEBS of nanoparticle materials at present, and the present invention adopts antimony chromate / titanium dioxide (SbCrO 3 / TiO 2 ) Nanomaterials modified SEBS, which improves the crystallization properties of the materia...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/08C08K13/02C08K5/01C08K3/22C08K3/24B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92
Inventor 杨桂生刘凯
Owner 滁州格美特科技有限公司
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