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Preparation method of PETG (polyethylene terephthalate glycol) encapsulated wire

A technology of coating wire and coating, which is applied to the device, coating, pretreatment surface and other directions of coating liquid on the surface. Strong focus, not easy to scratch off, smooth surface effect

Inactive Publication Date: 2014-04-30
宗明合
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET-coated glued wire has poor adhesion, single color, and the product is brittle, which has not fundamentally eliminated the threat of heavy metal elements to the human body and the environment, so it cannot fully meet the requirements of environmental protection.

Method used

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  • Preparation method of PETG (polyethylene terephthalate glycol) encapsulated wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 75kg of PET and 25kg of PEG400, add them into the reactor, start stirring when the temperature reaches 150°C, stop heating when the temperature reaches 200°C, and continue stirring for 45 minutes; when the liquid in the reactor cools to 15°C, add 25g of Basonat HB195 into it, Stir for 50 minutes to obtain PETG glue.

[0027] Use the prepared PETG glue solution to wrap the metal wire.

[0028] Put the prepared PETG glue into the stuffing box of the extruder, let it out, and the released metal wire penetrates into the mold, and the glue is squeezed into the glue coating chamber by the pressure of the extruder screw for encapsulation. The temperature of the glue room is 40°C; the glue-covering stage adopts a horizontal extruder, and the extrusion speed is 350-400 m / min; The length of the oven is 3m, the temperature is 780°C, the time for the metal wire to stay in the oven is 0.1-0.2 seconds; the baked wire is sent into the cooling cabin for cooling, and the temperat...

Embodiment 2

[0031] Weigh 75kg of PET and 25kg of PEG1000, add them into the reactor, start stirring when the temperature reaches 150°C, stop heating when the temperature reaches 200°C, and continue stirring for 45 minutes; when the liquid in the reactor cools to 15°C, add 30g of Basonat HB195 into it, Stir for 50 minutes to obtain PETG glue.

[0032] The PETG glue solution was used to encapsulate the metal wire according to the method in Example 1.

Embodiment 3

[0034] Weigh 80kgPET and 20kgPEG1000, put them into the reactor, start stirring when the temperature rises to 150°C, stop heating when the temperature reaches 200°C, and continue stirring for 45min; Stir for 50 minutes to obtain the bottom material; add 10kg of titanium dioxide to the bottom material, stir for 40 minutes, and set aside for later use.

[0035] The PETG glue solution was used to encapsulate the metal wire according to the method in Example 1.

[0036] The technical indicators that the metal wire covered wire can achieve:

[0037] Test items index standard Adhesion (scraping and peeling) ≤0.5cm GB9286-98 Film thickness (μm) ≥6 GB1764-89 Impact resistance(cm) 50 GB1732-93 Water resistance (25℃,h) ≥120 GB1733-93 Salt spray resistance (h) ≥200 GB1771-91 Fineness(mm) ≤20 GB1724-89 Hardness (Pencil) ≥2H GB6739-96 Viscosity (Tu-4 cups) (s) ≥120 GB1723-93 Flow drying temperature 120°C ≦1...

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Abstract

The invention provides a preparation method of a PETG (polyethylene terephthalate glycol) encapsulated wire. The PETG encapsulated wire can be obtained through paying off, encapsulating, baking, cooling and winding up. The invention further provides a formula of the PETG glue solution. The formula comprises a bottom material, the base material comprises a base solution and a curing agent, the base solution comprises PET (polyester) and PEG400 / 1000 (polyethylene glycol) with a weight percent of (70%-80%):(20%-30%); and the formula further comprises an inorganic synthetic pigment. According to the preparation method, the PET is modified, so that the PETG glue solution is obtained; and the encapsulated wire prepared by using the PETG glue solution is smooth in surface, bright in color, strong in adhesive force, and difficult in being scraped, is nontoxic and harmless, and accords with the environmental protection standard of ROHS (Restriction of Hazardous Substances) and SGS (Societe Generale De Surveillance) of the United Nations.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal wire rubberized wires, and in particular relates to a preparation method of PETG rubberized wires. Background technique [0002] Wire covered wire is an ideal material for making YO coils, calendars, notebooks, children's audio books, auto parts, clothing accessories, and high-end cable ties. In the past, similar products directly used metal galvanized wire, copper-plated wire, tin-plated wire, etc., because these products contain heavy metals, which have different degrees of damage to the human body and the environment; Line, so as to isolate heavy metals from the environment, more environmentally friendly. However, the PET-coated plastic wire has poor adhesion, single color, and the product is brittle, which has not fundamentally eliminated the threat of heavy metal elements to the human body and the environment, so it cannot fully meet the requirements of environmental protection....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/04B05D3/02C09D167/02C09D171/08C09D7/12
Inventor 宗明合
Owner 宗明合
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