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Multi-grafted phenylethylene-ethylene-butylene copolymer and preparation method thereof

A technology of butene copolymerization and styrene, which is applied in the field of multi-component grafted styrene-ethylene-butene copolymer and its preparation, can solve problems such as poor compatibility, and achieves simple and easy operation process and simple production and preparation process. Effect

Inactive Publication Date: 2012-01-18
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, SEBS is a non-polar material, which has poor compatibility with polar plastics such as polycarbonate (PC), nylon (PA), polyester (PET, PBT), polyphenylene ether (PPO), and various inorganic fillers.

Method used

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  • Multi-grafted phenylethylene-ethylene-butylene copolymer and preparation method thereof
  • Multi-grafted phenylethylene-ethylene-butylene copolymer and preparation method thereof
  • Multi-grafted phenylethylene-ethylene-butylene copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The multi-element grafted styrene-ethylene-butene copolymer of Example 1 is made from the following raw materials in parts by weight:

[0035] SEBS 1651 96.72 parts, DCP 0.08 parts, MMA 0.7 parts, GMA 0.5 parts, styrene 1.5 parts, 1010 0.1 parts, 168 0.1 parts, EBS 0.3 parts

[0036] Preparation method: Mix SEBS, peroxide initiator, MMA, GMA, co-reactant, antioxidant, and lubricant for 15 minutes; then melt and extrude through a twin-screw extruder to granulate into graft copolymer The process conditions of the twin-screw extruder are: the temperature in the first zone of the twin-screw extruder is 145℃, the temperature in the second zone is 150℃, the temperature in the third zone is 155℃, the temperature in the fourth zone is 160℃, and the temperature in the fifth zone is 165℃. The conveying time in the screw is 5 minutes and the pressure is 14 MPa.

Embodiment 2

[0037] The multi-element grafted styrene-ethylene-butene copolymer of Example 2 is made from the following raw materials in parts by weight:

[0038] SEBS 1654 94.58 parts, DCP 0.12 parts, MMA 1.0 parts, GMA 1.0 parts, styrene 2.4 parts, 1010 0.2 parts, 168 0.2 parts, EBS 0.5 parts

[0039] Preparation method: Mix SEBS, peroxide initiator, MMA, GMA, co-reactant, antioxidant, and lubricant for 15 minutes; then melt and extrude through a twin-screw extruder to granulate into graft copolymer The process conditions of the twin-screw extruder are: the temperature of the first zone of the twin-screw extruder is 145℃, the temperature of the second zone is 155℃, the temperature of the third zone is 165℃, the temperature of the fourth zone is 170℃, and the temperature of the fifth zone is 175℃. The conveying time in the screw is 4 minutes and the pressure is 15 MPa.

Embodiment 3

[0040] The meta-grafted styrene-ethylene-butene copolymer of Example 3 is made from the following raw materials in parts by weight:

[0041] SEBS 1651 93.15 parts, DCP 0.15 parts, MMA 1.5 parts, GMA 1.3 parts, styrene 3.0 parts, 1010 0.2 parts, 168 0.2 parts, EBS 0.5 parts

[0042] Preparation method: Mix SEBS, peroxide initiator, MMA, GMA, co-reactant, antioxidant, and lubricant for 15 minutes; then melt and extrude through a twin-screw extruder to granulate into graft copolymer The process conditions of the twin-screw extruder are: the temperature of the first zone of the twin-screw extruder is 145℃, the temperature of the second zone is 155℃, the temperature of the third zone is 165℃, the temperature of the fourth zone is 175℃, and the temperature of the fifth zone is 180℃. The conveying time in the screw is 3 minutes, and the pressure is 12 MPa.

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Abstract

The invention discloses a multi-grafted phenylethylene-ethylene-butylene copolymer and a preparation method thereof. The multi-grafted phenylethylene-ethylene-butylene copolymer is prepared from the following raw materials in parts by weight: 86-97 parts of phenylethylene-ethylene-butylene copolymer, 0.05-0.5 part of peroxide initiator, 0.3-5 parts of methyl methacrylate, 0.3-5 parts of glycidyl methacrylate, 0.3-5 parts of reactant auxiliary, 0-0.6 part of antioxidant and 0-0.6 part of lubricating agent. In the invention, methacrylate monomers, such as MMA (methyl methacrylate), GMA (glycidyl methacrylate) and the like, with good compatibility with polar resins such as PC (polycarbonate), ABS (acrylonitrile butadiene styrene), PA (poly amide), PPO (polyphenyleneoxide) and the like are adopted for graft modification on SEBS (Styrene-Ethylene-Butylenes-Styrene), a polar functional group is introduced onto a main chain of an SEBS molecule, thus interface affinity of the SEBS molecule with polar material can be improved.

Description

[Technical Field] [0001] The invention relates to the technical field of polymer materials, in particular to a multi-element grafted styrene-ethylene-butene copolymer and a preparation method thereof. [Background technique] [0002] The styrene-ethylene-butene copolymer (SEBS) thermoplastic elastomer is a linear tri-block copolymerization with polystyrene as the terminal block and ethylene-butene copolymer obtained by hydrogenation of polybutadiene as the middle elastic block. It has the characteristics of saturated main chain structure, good elasticity, high strength, excellent weather resistance and UV resistance. SEBS has outstanding low temperature toughness and high cost performance. It is widely used in the modification of non-polar plastics such as polypropylene. However, SEBS is a non-polar material and has poor compatibility with polar plastics such as polycarbonate (PC), nylon (PA), polyester (PET, PBT), polyphenylene ether (PPO), and various inorganic fillers. [Summa...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08K5/134C08K5/526C08K5/103C08K5/20C08F287/00B29C47/92B29C48/92
Inventor 徐东徐永谢建达
Owner ANHUI KEJU NEW MATERIALS
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