Special glass fiber reinforcement PA66 composition for heat-insulation strips and method for preparing special glass fiber reinforcement PA66 composition

A PA66, glass fiber technology, applied in the field of glass fiber reinforced PA66 composition and its preparation, can solve the problems of low output, low quality, slow extrusion rate, large performance fluctuation, etc., achieve important application and promotion value, reduce die head Resistance, effect of high extrusion rate

Inactive Publication Date: 2016-12-07
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a glass fiber reinforced PA66 composition dedicated to heat insulation strips, comprising the steps of:

[0030] Step 1: Weigh 65 parts of PA66, 5 parts of POE-g-MAH, 8 parts of HDPE, 0.3 part of silane coupling agent, 0.2 part of antioxidant and 0.5 part of lubricant by weight percentage, and dry PA66 at 120 °C 4h, and then put the rest of the components and the dried PA66 into the high-speed mixer and mix for 1-2 minutes to get the premix;

[0031] Step 2: Add the premix prepared in Step 1 into the main feeding port of the twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=40), and weigh 23 parts of ECS10-3.0-T435N from the side The feed port is added, and pelletized after being melted and extruded to obtain the pellets of the glass fiber reinforced PA66 composition specially used for heat insulation strips. Among them, the temperature of each screw barrel of the twin-screw extruder (from the feeding port to the machine head...

Embodiment 2

[0034] A method for preparing a glass fiber reinforced PA66 composition dedicated to heat insulation strips, comprising the steps of:

[0035] Step 1: Weigh 60 parts of PA66, 4 parts of POE-g-MAH, 9 parts of HDPE, 0.3 part of silane coupling agent, 0.2 part of antioxidant and 0.5 part of lubricant by weight percentage, and dry PA66 at 120 °C 4h, and then put the rest of the components and the dried PA66 into the high-speed mixer and mix for 1-2 minutes to get the premix;

[0036] Step 2: Add the premix prepared in Step 1 into the main feeding port of the twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=40), and weigh 25 parts of ECS10-3.0-T435N from the side The feed port is added, and pelletized after being melted and extruded to obtain the pellets of the glass fiber reinforced PA66 composition specially used for heat insulation strips. Among them, the temperature of each screw barrel of the twin-screw extruder (from the feeding port to the machine head...

Embodiment 3

[0039] A method for preparing a glass fiber reinforced PA66 composition dedicated to heat insulation strips, comprising the steps of:

[0040] Step 1: Weigh 55 parts of PA66, 3 parts of POE-g-MAH, 7 parts of HDPE, 0.3 parts of silane coupling agent, 0.2 parts of antioxidant and 0.5 parts of lubricant by weight percentage, and dry PA66 at 120 °C 4h, and then put the rest of the components and the dried PA66 into the high-speed mixer and mix for 1-2 minutes to get the premix;

[0041] Step 2: Add the premix prepared in Step 1 into the main feeding port of the twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=40), and weigh 27 parts of ECS10-3.0-T435N from the side The feed port is added, and pelletized after being melted and extruded to obtain the pellets of the glass fiber reinforced PA66 composition specially used for heat insulation strips. Among them, the temperature of each screw barrel of the twin-screw extruder (from the feeding port to the machine h...

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Abstract

The invention provides a special glass fiber reinforcement PA66 composition for heat-insulation strips and a method for preparing the special glass fiber reinforcement PA66 composition. The composition comprises, by weight, 55-75 parts of nylon 66, 0-10 parts of toughening agents, 0-15 parts of polyethylene, 20-30 parts of chopped glass fibers, 0.01-1 part of silane coupling agents, 0.01-1 part of antioxidants and 0.1-3 parts of lubricants. The special glass fiber reinforcement PA66 composition for the heat-insulation strips and the method have the advantages that the special glass fiber reinforcement PA66 composition is high in performance and extrusion rate and excellent in appearance, requirements of the heat-insulation strip industry on the performance and the appearance of materials can be met, and the special glass fiber reinforcement PA66 composition and the method have important application and popularization value.

Description

technical field [0001] The invention belongs to the field of polyhexamethylene adipamide compositions, and in particular relates to a glass fiber reinforced PA66 composition specially used for heat insulation strips and a preparation method thereof. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/06C08L23/06C08K13/04C08K7/14C08K5/544B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/92704C08K2201/003C08K2201/004C08L2205/03C08L2207/062C08L51/06C08L23/06C08K13/04C08K7/14C08K5/544
Inventor 张现军丁超陈勇文陶四平张俊文
Owner TIANJIN KINGFA NEW MATERIAL
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