Glass fiber reinforced nylon 66 composition with high performance and high extrusion rate

An extrusion rate, glass fiber technology

Inactive Publication Date: 2017-01-04
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, PVC, ABS and other materials were mostly used to produce heat insulation strips at home and abroad, but their output and quality were low, and there were serious quality risks. At present, reinforced nylon 66 (PA66) composite materials are mostly used at home and abroad to extrude heat insulation profiles, and Developed industry standards
However, the currently used reinforced nylon 66 materials generally have the disadvantages of slow extrusion rate, poor appearance, and large performance fluctuations, which seriously affect the production efficiency and product quality of the product.

Method used

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  • Glass fiber reinforced nylon 66 composition with high performance and high extrusion rate

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Effect test

Embodiment 1

[0033] A high performance and high extrusion rate glass fiber reinforced nylon 66 composition, the composition is made of raw materials comprising the following parts by weight: nylon 66: 73.49 parts, 3 parts of toughening agent, 23 parts of chopped glass fiber, iron powder 0.01 part, 0.1 part of silane coupling agent, 0.1 part of antioxidant and 0.3 part of lubricant.

[0034] The preparation method of this high performance high extrusion rate glass fiber reinforced nylon 66 composition comprises the steps:

[0035] (1) Dry nylon 66 at 120°C for 4 hours, then put toughening agent, iron powder, silane coupling agent, antioxidant, lubricant and dried nylon 66 into a high-speed mixer and mix evenly to form premix;

[0036] (2) The premixed material is added from the main feeding port of the twin-screw extruder (screw diameter is 35mm, aspect ratio L / D=40), and the chopped glass fiber is added from the side feeding port, After melting and extruding, the pellets of glass fiber r...

Embodiment 2

[0039] A high performance and high extrusion rate glass fiber reinforced nylon 66 composition, the composition is made of raw materials comprising the following parts by weight: nylon 66: 70.9 parts, 3 parts of toughening agent, 23 parts of chopped glass fiber, iron powder 0.1 part, 0.6 part of silane coupling agent, 0.6 part of antioxidant and 1.8 part of lubricant.

[0040] The preparation method of this high performance high extrusion rate glass fiber reinforced nylon 66 composition comprises the steps:

[0041] (1) Dry nylon 66 at 120°C for 4 hours, then put toughening agent, iron powder, silane coupling agent, antioxidant, lubricant and dried nylon 66 into a high-speed mixer and mix evenly to form premix;

[0042] (2) The premixed material is added from the main feeding port of the twin-screw extruder (screw diameter is 35mm, aspect ratio L / D=40), and the chopped glass fiber is added from the side feeding port, After melting and extruding, the pellets of glass fiber rei...

Embodiment 3

[0045] A high performance and high extrusion rate glass fiber reinforced nylon 66 composition, the composition is made of raw materials comprising the following parts by weight: nylon 66: 66.5 parts, 7 parts of toughening agent, 25 parts of chopped glass fiber, iron powder 0.5 parts, 0.2 parts of silane coupling agent, 0.2 parts of antioxidant and 0.6 parts of lubricant.

[0046] The preparation method of this high performance high extrusion rate glass fiber reinforced nylon 66 composition comprises the steps:

[0047] (1) Dry nylon 66 at 120°C for 4 hours, then put toughening agent, iron powder, silane coupling agent, antioxidant, lubricant and dried nylon 66 into a high-speed mixer and mix evenly to form premix;

[0048](2) The premixed material is added from the main feeding port of the twin-screw extruder (screw diameter is 35mm, aspect ratio L / D=40), and the chopped glass fiber is added from the side feeding port, After melting and extruding, the pellets of glass fiber ...

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Abstract

The invention provides a glass fiber reinforced nylon 66 composition with high performance and a high extrusion rate. The preparation method of the glass fiber reinforced nylon 66 composition with the high performance and the high extrusion rate comprises the following steps: (1) drying the nylon 66 at 100-140 DEG C for 3-6h, and then putting a toughening agent, iron powder, other additives and the dried nylon 66 in a high-speed mixer to evenly mix the same to form a premix; and (2) adding the premix from a main feed opening of a twin-screw extruder, feeding short glass fibers from a side feed opening, and carrying out granulation after fusion extrusion to obtain aggregates of the glass fiber reinforced nylon 66 composition with the high performance and the high extrusion rate. According to the glass fiber reinforced nylon 66 composition with the high performance and the high extrusion rate, provided by the invention, the melt strength of the material in a fusion state is adjusted by POE-g-MAH components, so that more stable extrusion is realized.

Description

technical field [0001] The invention belongs to the field of polyhexamethylene adipamide compositions, in particular to a glass fiber reinforced nylon 66 composition with high performance and high extrusion rate. Background technique [0002] In the past, PVC, ABS and other materials were mostly used to produce heat insulation strips at home and abroad, but their output and quality were low, and there were serious quality risks. At present, reinforced nylon 66 (PA66) composite materials are mostly used at home and abroad to extrude heat insulation profiles, and Developed industry standards. However, the currently used reinforced nylon 66 materials generally have the disadvantages of slow extrusion rate, poor appearance, and large performance fluctuations, which seriously affect the production efficiency and product quality of the product. [0003] The main performance parameters of the national standard for type I heat insulation strips in the heat insulation strip industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/06C08L51/04C08K13/04C08K7/14C08K3/08C08J5/04B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9259B29C2948/92704C08J5/043C08J2377/06C08K3/08C08K7/14C08K13/04C08K2003/0856C08K2201/003C08K2201/004C08L2207/20C08L51/06C08L51/04C08L51/003
Inventor 张现军丁超陈勇文陶四平张俊文
Owner TIANJIN KINGFA NEW MATERIAL
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