Spraying-free polyamide resin complex and preparation method thereof

A polyamide resin and compound technology, applied in the field of spray-free polyamide resin compound and its preparation, can solve the problems of weather resistance size change and high temperature yellowing

Inactive Publication Date: 2018-02-09
SHANGHAI KINGFA SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weather resistance of polyamide, the dimensional change after water absorption and the problem of high temperature yellowing restrict the use of spray-free polyamide products as exterior parts

Method used

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  • Spraying-free polyamide resin complex and preparation method thereof
  • Spraying-free polyamide resin complex and preparation method thereof
  • Spraying-free polyamide resin complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Step 1: Prepare raw materials according to the following components and parts by weight thereof:

[0097] Polyamide 6 (PA6) 70kg;

[0098] Styrene-acrylonitrile-acrylate (ASA) 12kg;

[0099] Effect pigment 2kg;

[0100] Styrene-maleimide copolymer 5kg;

[0101] Step 2: After mixing the components in step 1, put them into a twin-screw extruder, melt extrude, cool and granulate at the same time, and obtain the product of Example 1.

[0102] Among them, the twin-screw extruder is divided into nine zones, and the temperature of each zone is: the temperature of the first zone is 230°C, the temperature of the second zone is 230°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 230°C, the temperature of the fifth zone is 230°C, and the temperature of the sixth zone is 230°C. The temperature in the zone is 240°C, the temperature in the seventh zone is 240°C, the temperature in the eighth zone is 245°C, and the temperature in the ninth zone ...

Embodiment 2

[0104] Step 1: Prepare raw materials according to the following components and parts by weight thereof:

[0105] Polyamide 6 (PA6) 57kg;

[0106] Styrene-acrylonitrile-acrylate (ASA) 20kg;

[0107] Effect pigment 2kg;

[0108] Styrene-maleimide copolymer 5kg;

[0109] Silica 15kg;

[0110] Step 2: After mixing the components in step 1, put them into a twin-screw extruder, melt extrude, cool and granulate at the same time, and obtain the product of Example 2.

[0111] Among them, the twin-screw extruder is divided into nine zones, and the temperature of each zone is: the temperature of the first zone is 230°C, the temperature of the second zone is 230°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 230°C, the temperature of the fifth zone is 230°C, and the temperature of the sixth zone is 230°C. The temperature in the zone is 240°C, the temperature in the seventh zone is 240°C, the temperature in the eighth zone is 245°C, and the tempera...

Embodiment 3

[0113] Step 1: Prepare raw materials according to the following components and parts by weight thereof:

[0114] Polyamide 6 (PA6) 41kg;

[0115] Styrene-acrylonitrile-acrylate (ASA) 30kg;

[0116] Effect pigment 3kg;

[0117] Styrene-maleimide copolymer 10kg;

[0118] Talc powder 15kg;

[0119] Step 2: After mixing the components in step 1, put them into a twin-screw extruder, melt extrude, cool and granulate at the same time, and obtain the product of Example 3.

[0120] Among them, the twin-screw extruder is divided into nine zones, and the temperature of each zone is: the temperature of the first zone is 230°C, the temperature of the second zone is 230°C, the temperature of the third zone is 230°C, the temperature of the fourth zone is 230°C, the temperature of the fifth zone is 230°C, and the temperature of the sixth zone is 230°C. The temperature in the zone is 240°C, the temperature in the seventh zone is 240°C, the temperature in the eighth zone is 245°C, and the t...

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Abstract

The invention discloses a spraying-free polyamide resin complex and a preparation method thereof. The polyamide resin complex is prepared from the following components in parts by weight: 30 to 70 parts of polyamide, 5 to 60 parts of AS-based polymer, 0.1 to 6 parts of effect pigment, 2 to 10 parts of compatilizer and 0 to 60 parts of filler. The spraying-free polyamide resin complex provided by the invention has excellent weather fastness and dimensional stability, especially excellent weather fastness; an American automobile association SAEJ2527 standard test result shows that a change deltaE of a color different value is smaller than 3; the spraying-free polyamide resin complex has yellowing prevention better than a common spraying-free nylon product.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a spray-free polyamide resin compound and a preparation method thereof. Background technique [0002] With the strengthening of people's awareness of environmental protection and higher pursuit of sensory experience, major OEMs have more and more demands for spray-free materials. With the increasing requirements for product appearance, it expresses unprecedented favor for the rich color effects brought by traditional spraying technology, including pearlescent effect, metallic texture, and flickering effect. However, the traditional spraying process will cause pollution and energy waste to the environment. On the one hand, the spraying process is forced to continue to improve to reduce environmental pressure. On the one hand, spray-free products have begun to appear in the field of resins with a large amount of use, that is, adding metal powder pigments to the resin. , pearlescen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/00C08L35/06C08K13/06C08K9/10C08K7/00C08K3/08C08K3/34
CPCC08L77/02C08K2003/0812C08K2201/003C08K2201/014C08L2205/025C08L2205/03C08L51/003C08L35/06C08K9/10C08K7/00C08K3/08C08K13/06C08K3/34C08K3/346
Inventor 林洁龙袁绍彦夏建盟杨波丁正亚苏娟霞黄河生
Owner SHANGHAI KINGFA SCI & TECH
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