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Glass fiber reinforced polypropylene graft microcellular foaming material and preparation method thereof

A technology of microporous foam material and polypropylene grafting, which is applied in the field of polymer materials, can solve problems such as tensile strength reduction, application limitations, and use of structural materials, so as to solve the problem of dispersion, expand the scope of application, and solve dust Flappy effect

Inactive Publication Date: 2015-03-18
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The introduction of micropores can improve the toughness of materials with low intrinsic toughness, but it will reduce the tensile strength of the material, so it cannot be used as a structural material, and its application is limited.

Method used

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  • Glass fiber reinforced polypropylene graft microcellular foaming material and preparation method thereof
  • Glass fiber reinforced polypropylene graft microcellular foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) 5 parts of foaming agent azodicarbonamide (AC), 10 parts of nucleating agent talcum powder, 15 parts of thermoplastic elastomer polyolefin elastomer (POE) and 20 parts of low-density polymer were mixed by twin-screw extruder. Ethylene extrusion, granulation, prepared into foam masterbatch, extrusion temperature is 135 ~ 155 ℃;

[0035] (2) Dissolve 5.0 parts of coupling agent 3-aminopropyltriethoxysilane (KH550) in water and ethanol to prepare a coupling agent-ethanol solution with a concentration of 1.5%, and spray the solution by spraying method On 300 parts of chopped glass fiber (8.0 mm in length), dry the glass fiber sprayed with coupling agent solution in an oven at 110°C for 45 minutes; Fiber, 2 parts of foaming aid calcium stearate and 1000 parts of polypropylene grafted material maleic anhydride grafted polypropylene (PP-g-MAH) are extruded and granulated, and the extrusion temperature is 195-215 °C;

[0036] (3) Combine the foam masterbatch in (1), the pe...

Embodiment 2

[0038] (1) 8 parts of foaming agent azodicarbonamide (AC), 16 parts of nucleating agent talc, 24 parts of thermoplastic elastomer polyolefin elastomer (POE) and 32 parts of low density polystyrene were mixed by twin-screw extruder. Ethylene extrusion, granulation, prepared into foam masterbatch, extrusion temperature is 135 ~ 155 ℃;

[0039] (2) Dissolve 5.0 parts of coupling agent 3-aminopropyltriethoxysilane (KH550) in water and ethanol to prepare a coupling agent-ethanol solution with a concentration of 1.5%, and spray the solution by spraying method On 300 parts of chopped glass fiber (8.0 mm in length), dry the glass fiber sprayed with coupling agent solution in an oven at 110°C for 45 minutes; Fiber, 4 parts of foaming aid calcium stearate and 1000 parts of polypropylene grafted material maleic anhydride grafted polypropylene (PP-g-MAH) are extruded and granulated, and the extrusion temperature is 195-215 °C;

[0040] (3) Combine the foam masterbatch in (1), the pellets...

Embodiment 3

[0042](1) 12.5 parts of foaming agent azodicarbonamide (AC), 25 parts of nucleating agent talc, 37.5 parts of thermoplastic elastomer polyolefin elastomer (POE) and 50 parts of low-density polymer were mixed by twin-screw extruder. Ethylene extrusion, granulation, prepared into foam masterbatch, extrusion temperature is 135 ~ 155 ℃;

[0043] (2) Dissolve 5.0 parts of coupling agent 3-aminopropyltriethoxysilane (KH550) in water and ethanol to prepare a coupling agent-ethanol solution with a concentration of 1.5%, and spray the solution by spraying method On 300 parts of chopped glass fiber (8.0 mm in length), dry the glass fiber sprayed with coupling agent solution in an oven at 110°C for 45 minutes; Fiber, 6 parts of foaming aid calcium stearate and 1000 parts of polypropylene grafted material maleic anhydride grafted polypropylene (PP-g-MAH) are extruded and granulated, and the extrusion temperature is 195-215 °C;

[0044] (3) Combine the foam masterbatch in (1), the pellets...

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Abstract

The invention belongs to the technical field of polymer materials, and relates to a glass fiber reinforced polypropylene graft microcellular foaming material and a preparation method thereof. The foaming material comprises the following components by weight: 1000 parts of a polypropylene polar graft, 5-20 parts of a foaming agent, 2-10 parts of a foaming assistant agent, 10-35 parts of a nucleating agent, 20-70 parts of low density polyethylene, 15-50 parts of a thermoplastic elastomer, 1-5 parts of an antioxidant, 0.2-10 parts of a coupling agent and 50-550 parts of glass fiber. The glass fiber reinforced polypropylene graft microcellular foaming material using the polypropylene (PP) polar graft or a copolymer for foaming, the PP foaming material can not only meet the requirement of polar materials, but also can satisfy the requirements of non polarity materials, and the scope of application of the PP foaming material is expanded. In addition, glass fiber (GF) is used as a filler, and has the strengthening and toughening effect on the foaming material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a glass fiber reinforced polypropylene graft microporous foam material and a preparation method thereof. Background technique [0002] Polypropylene (PP) has the characteristics of heat resistance, chemical stability and environmental protection, and is widely used in various fields. Some developed countries are also vigorously developing PP foam materials. Foamed PP has become a new type of foam material with more application value and market potential after polystyrene, polyurethane, and polyethylene foam materials. However, since PP is a partially crystalline linear polymer, its melt strength and melt tensile properties are very low, the cell walls are easy to break and merge during foaming, and the cells are easy to collapse after foaming, making it difficult to prepare uniform cells. PP foam material with high density and high expansion rate. Therefore, improving t...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08L23/06C08L23/16C08L23/08C08K13/06C08K9/06C08K7/14C08K5/098C08K3/34C08K5/13C08K5/526C08J9/10C08J3/22
Inventor 杨桂生刘明昌
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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