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Glass fiber reinforced nylon material used for extrusion molding, preparation method and application

An extrusion molding, glass fiber technology, applied in the field of high melt strength glass fiber reinforced nylon material and its preparation field, can solve the problems of mechanical properties of extrusion molding products, etc., achieve excellent appearance, high melt strength, guarantee The effect of mechanical properties

Active Publication Date: 2013-08-14
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the glass fiber length drops below 180μm, the mechanical properties of blow molded products drop slightly, while the mechanical properties of extruded products drop significantly
Both of the above two patents focused on the blow molding of glass fiber reinforced nylon materials, and neither of them involved the discussion of extrusion molding of glass fiber reinforced nylon materials

Method used

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  • Glass fiber reinforced nylon material used for extrusion molding, preparation method and application

Examples

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Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing a glass fiber reinforced nylon material for extrusion molding, comprising the following steps:

[0047] 56 parts by mass of PA66 (viscosity 2.6), 8 parts by mass of extrusion molding surface improver HDPE, 3 parts by mass of toughening agent MAH-g-POE, 2.5 parts by mass of chain extender SMA (maleic anhydride content 25%), 0.1 Parts by mass of antioxidant 1098, 0.2 part by mass of lubricant oxidized polyethylene wax, 0.2 part by mass of nucleating agent talcum powder, mixed uniformly with a pre-mixer at room temperature, fed by a metering scale through the main feed port of a twin-screw extruder ; 15 parts by mass of aminosilane coupling agent-modified glass fiber (diameter 12 μm) is fed through the side feeding port of the fifth zone by the metering scale. Using a twin-screw extruder to extrude and granulate, the conditions for extrusion and granulation are as follows: the temperature of the first zone is 220°C, the temperature of the second zone...

Embodiment 2

[0049] A method for preparing a glass fiber reinforced nylon material for extrusion molding, comprising the following steps:

[0050] 59 parts by mass of PA66 (viscosity 2.9), 8 parts by mass of extrusion surface improver HDPE, 2 parts by mass of toughening agent MAH-g-POE, 0.5 parts by mass of chain extender SMA (maleic anhydride content 25%), 0.1 Parts by mass of antioxidant 1098, 0.2 parts by mass of lubricant montanic acid wax, 0.2 parts by mass of nucleating agent talcum powder, mixed uniformly with a pre-mixer at room temperature, fed by a metering scale through the main feed port of a twin-screw extruder; 15 parts by mass of aminosilane coupling agent-modified glass fibers (diameter 12 μm) are fed through the side feeding port of the fifth zone from the metering scale. Using a twin-screw extruder to extrude and granulate, the conditions for extrusion and granulation are as follows: the temperature of the first zone is 220°C, the temperature of the second zone is 270°C, ...

Embodiment 3

[0052] A method for preparing a glass fiber reinforced nylon material for extrusion molding, comprising the following steps:

[0053] 59 parts by mass of PA6 (viscosity 2.8), 7 parts by mass of extrusion molding surface improver LDPE, 3 parts by mass of toughening agent MAH-g-EPDM, 0.5 parts by mass of chain extender M1251 (produced by Bruggemann), 0.1 parts by mass 168 parts of antioxidant, 0.2 parts by mass of lubricant calcium stearate, 0.2 parts by mass of nucleating agent sodium carboxylate, mixed uniformly with a premixer at room temperature and fed through the main feed port of the twin-screw extruder; 25 parts by mass A glass fiber (15 μm in diameter) modified by an aminosilane coupling agent is fed through the side feeding port of the fifth zone. Using a twin-screw extruder to extrude and granulate, the conditions for extrusion and granulation are as follows: the temperature of the first zone is 180°C, the temperature of the second zone is 220°C, the temperature of th...

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Abstract

The invention discloses a glass fiber reinforced nylon material used for extrusion molding, a preparation method and an application thereof. The glass fiber reinforced nylon material is prepared by 30-75 parts of a nylon resin, 10-50 parts of glass fibers, 1-10 parts of a toughening agent, 0.1-10.0 parts of a surface quality-improving agent, 0.1-5.0 parts of a chain extender and 0.1-1.5 parts of a processing aid, wherein the surface quality-improving agent is polyethylene or a copolymer of ethylene and other olefins. The melt strength of the nylon material is increased, allowing the glass fiber reinforced nylon material to meet the requirements of injection molding and a product to have excellent appearance.

Description

technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a glass fiber reinforced nylon material with high melt strength for extrusion molding, a preparation method and application thereof. Background technique [0002] Nylon materials include PA6, PA66, PA46, PA11, PA12, PA610, PA6I, PA6T, PA9T, PA10T, etc. Among them, PA66 and PA6 are the most used. Nylon material has high mechanical strength, high heat resistance, strong solvent resistance, excellent electrical properties, in addition to good barrier properties and self-lubricating properties. Excellent comprehensive performance makes nylon products widely used in various industries of the national economy such as automobiles, machinery manufacturing, electronic appliances, and building materials. Typically, these nylon products are injection molded. However, some products, such as hollow products or profiles and plates, are more expensive or difficult to produce by in...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L23/06C08L23/08C08L23/16C08K13/06C08K9/06C08K9/04C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29B9/14B29B9/06
Inventor 丁超梁惠强孙雅杰王鹏陈大华宁凯军
Owner KINGFA SCI & TECH CO LTD
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