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Glass fiber reinforced polybutylene terephthalate resin composition with laser printing marking function and preparation method thereof

A technology of polybutylene terephthalate and polyethylene terephthalate, which is applied in the field of glass fiber reinforced polybutylene terephthalate resin composition and its preparation, can solve the problem of white color Unclear, easy to wear, environmental pollution and other problems

Active Publication Date: 2011-08-17
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the resin composition is used for laser marking, the white color of the marked product is not clear
[0004] Polybutylene terephthalate (PBT) resin is often used in electrical products, and the markings involving electrical products are still commonly used in the printing method. However, this method is often prone to abrasion as described above, which will cause Environmental pollution and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 99 parts by weight of PBT, 0.2 parts by weight of NAV101, 0.2 parts by weight of KH550, 0.2 parts by weight of A206, and 0.3 parts by weight of 1010 parts by weight. extruder production. The processing conditions are: the temperature of the first zone is 200°C, the temperature of the second zone is 220°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, the temperature of the sixth zone is 230°C, the temperature of the seventh zone is 240°C, and the temperature of the eighth zone is 240°C ℃, the temperature in the ninth zone is 230 ℃; the speed of the host is 300 rpm.

Embodiment 2

[0034] 10 parts by weight of PBT, 40 parts by weight of PET, 7 parts by weight of PTW, 0.5 parts by weight of NAV101, 0.5 parts by weight of KH550, 0.5 parts by weight of C311, 1.0 parts by weight of A206, and 0.5 parts by weight of 1010 parts by weight. The above components are mixed at room temperature in a high-speed mixer, and then produced in a twin-screw extruder. Continuous glass fibers are added from the middle of the twin-screw extruder, and the glass fiber content is controlled to 40%. The processing conditions are: the temperature of the first zone is 220°C, the temperature of the second zone is 230°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 240°C, the temperature of the seventh zone is 250°C, and the temperature of the eighth zone is 250°C ℃, the temperature in the ninth zone is 240 ℃; the speed of the host is 400 rpm.

Embodiment 3

[0036] 55 parts by weight of PBT, 10 parts by weight of PET, 15 parts by weight of PTW, 0.4 parts by weight of NAV101, 0.3 parts by weight of KH550, 1.0 parts by weight of A206, and 0.3 parts by weight of 1010 parts by weight. The components are mixed at room temperature, and then produced in a twin-screw extruder. Continuous glass fiber is added from the middle of the twin-screw extruder, and the glass fiber content is controlled to 28%. The processing conditions are: the temperature of the first zone is 200°C, the temperature of the second zone is 220°C, the temperature of the third zone is 235°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 240°C, the temperature of the seventh zone is 245°C, and the temperature of the eighth zone is 245°C ℃, the temperature in the ninth zone is 230 ℃; the speed of the host is 350 rpm.

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Abstract

The invention provides a glass fiber reinforced polybutylene terephthalate resin composition with laser marking function, which is characterized in that the composition consists of the following materials in weight portion: 10 to 99 portions of polybutylene terephthalate, 0 to 40 portions of polyethylene glycol terephthalate, 0 to 40 portions of continuous glass fiber, 0 to 15 portions of toughening agent, 0.2 to 0.5 portion of nucleating agent, 0.2 to 0.5 portion of coupling agent, 0 to 0.5 portion of carbon black, 0.2 to 1.0 portion of laser marking agent and 0.3 and 0.5 portion of antioxidant. The invention also provides a method for preparing the composition; the method is as follows: the materials are mixed, placed in a double screw extruder for extrusion, cooled down, dried and diced. The resin composition has the advantages of good mechanical performance and laser marking performance.

Description

technical field [0001] The invention relates to a glass fiber reinforced polybutylene terephthalate resin composition with laser printing marking function and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Product marking is becoming more and more important in industry, especially for plastic products, which have a wide range of applications. In production, production dates, bar codes, company slogans, serial numbers, etc. need to be marked frequently. Commonly used marking techniques such as printing, embossing, and stamping are very complicated, requiring skilled staff and a lot of time. Furthermore, it is quite difficult to mark characters or symbols on irregular surfaces. But the importance of non-contact, high-speed laser marking is increasing, especially in plastics, and marking the plastic product itself makes laser marking more durable and abrasion-resistant. In addition, since laser marking does not use so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/14C08J5/04B29B9/02B29C47/92B29C47/10B41M5/26B29C48/40B29C48/92
CPCY02P20/582B29C48/40
Inventor 殷年伟雷岳文丁正亚鲍建兵
Owner SHANGHAI KINGFA SCI & TECH