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Antistatic PETG resin and manufacturing method thereof

An antistatic and resin technology, applied in the field of PETG resin and its manufacturing, can solve the problems that antistatic and high transparency cannot coexist, and achieve good transparency, good antistatic performance, small screw block gap and screw barrel gap Effect

Pending Publication Date: 2022-03-18
山东星达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that antistatic and high transparency cannot coexist in current drug inhalation devices, this application provides a PETG resin and its manufacturing method

Method used

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  • Antistatic PETG resin and manufacturing method thereof

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Effect test

Embodiment 1

[0035] In this embodiment, a twin-screw extruder is used, and the length-to-diameter ratio of the screw is 48:1; the groove depth ratio (Do / Di) of the screw is 1.7-1.75. The ratio of the two screw diameters to the screw center spacing is preferably 1.1-1.3; for example, the screw center spacing is 50-54 cm, and the screw diameter D is 60 cm, or, for example, the screw center spacing is 30-33 cm, and the screw diameter D is 40 cm. The ratio of the gap between the two screws to the width of the screw groove is preferably 0.01 to 0.035. For example, the width a of the screw groove is 15 cm, and the distance b2 at the closest position of the thread wall is 0.2 cm; the distance b1 at the farther distance from the thread wall is 0.5cm.

[0036] In this embodiment, the screw rod is at one end of the extrusion head, and the direction of inward extension sequentially includes a first screw channel segment, a second screw channel segment and a corrugated segment, and the screw channel w...

Embodiment 2

[0040] In this embodiment, a twin-screw extruder is used, and the length-to-diameter ratio of the screw is 48:1; the groove depth ratio (Do / Di) of the screw is 1.7-1.75. The ratio of the two screw diameters to the screw center spacing is preferably 1.1-1.3; for example, the screw center spacing is 50-54 cm, and the screw diameter D is 60 cm, or, for example, the screw center spacing is 30-33 cm, and the screw diameter D is 40 cm. The ratio of the gap between the two screws to the width of the screw groove is preferably 0.01 to 0.035. For example, the width a of the screw groove is 15 cm, and the distance b2 at the closest position of the thread wall is 0.2 cm; the distance b1 at the farther distance from the thread wall is 0.5cm.

[0041] In this embodiment, the screw rod is at one end of the extrusion head, and the direction of inward extension sequentially includes a first screw channel segment, a second screw channel segment and a corrugated segment, and the screw channel w...

Embodiment 3

[0046] In this embodiment, a twin-screw extruder is used, and the length-to-diameter ratio of the screw is 48:1; the groove depth ratio (Do / Di) of the screw is 1.7-1.75. The ratio of the two screw diameters to the screw center spacing is preferably 1.1-1.3; for example, the screw center spacing is 50-54 cm, and the screw diameter D is 60 cm, or, for example, the screw center spacing is 30-33 cm, and the screw diameter D is 40 cm. The ratio of the gap between the two screws to the width of the screw groove is preferably 0.01 to 0.035. For example, the width a of the screw groove is 15 cm, and the distance b2 at the closest position of the thread wall is 0.2 cm; the distance b1 at the farther distance from the thread wall is 0.5cm.

[0047] In this embodiment, the screw rod is at one end of the extrusion head, and the direction of inward extension sequentially includes a first screw channel segment, a second screw channel segment and a corrugated segment, and the screw channel w...

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Abstract

The invention relates to PETG resin and a manufacturing method thereof, and the manufacturing method comprises the following steps: providing a twin-screw extruder, adding PETG, an antibacterial agent and an antistatic agent from a feeding section of the twin-screw extruder, mixing in the twin-screw extruder, and synchronously rotating the twin-screw extruder at the same speed; and extruding the mixture in the double-screw extruder. The PETG resin provided by the invention has high transparency and good anti-static performance, also has good antibacterial property, hydrophobicity and chemical resistance, is suitable for manufacturing the medicine inhalation device for asthma patients, and solves the problem that the anti-static performance and high transparency of the medicine inhalation device in the current market cannot coexist.

Description

technical field [0001] The invention relates to a PETG resin and a manufacturing method thereof, in particular to a highly transparent and medically applicable antistatic PETG resin, and a method for manufacturing the PETG resin based on double-helix blending modification. Background technique [0002] With the improvement of the living standards of residents around the world and the enhancement of health care awareness, the demand for medical device industry continues to grow. Highly transparent materials are important raw materials for tubes, plates / sheets, films, bottles, and profiles in medical devices. [0003] Because of its excellent mechanical properties, polycarbonate was once an important choice for transparent materials in medical devices, but the unavoidable residual BPA in the polycarbonate synthesis process will have adverse effects on nerve function and immune system function. The Ministry of Health of my country has issued relevant decrees prohibiting the use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/41B29C48/505C08G63/199C08L67/02
CPCB29C48/41B29C48/505C08G63/199C08L67/02
Inventor 刘贵臻
Owner 山东星达新材料有限公司
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