Single-sided protective film adhesive tape as well as preparation method and application thereof

A protective film, single-sided technology, applied in the direction of adhesives, pressure-sensitive films/sheets, film/sheet-like adhesives, etc., can solve problems such as impact, difficult to polish thoroughly, and affect the appearance of the product, to meet the stability, good fixation effect

Pending Publication Date: 2021-12-17
SUZHOU HI TECH ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the existing injection port is directly connected to the cavity of the mold, the molten material has an excessive impact on the formed product, and it is easy to leave a gate on the surface of the product, which affects the appearance of the product
Therefore, it is necessary to choose a suitable wear-resistant protective film to polish the gate. However, with the refinement and diversification of electronic products, the product itself has high strength and various shapes, and the size of the gate left by molding processing is very small. Small, generally in the range of tens to hundreds of microns, it is often difficult to polish thoroughly, which requires high performance of the wear-resistant protective film. Obviously, ordinary wear-resistant tapes are difficult to meet the requirements, especially for the grinding of some curved surface structures, such as Cables for electronic products need to take into account the thickness, modulus and bending strength of the material

Method used

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  • Single-sided protective film adhesive tape as well as preparation method and application thereof
  • Single-sided protective film adhesive tape as well as preparation method and application thereof
  • Single-sided protective film adhesive tape as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of the high-strength wear-resistant single-sided protective film tape comprises the following steps:

[0029] (1) Mix special acrylic pressure-sensitive adhesive resin, curing agent and solvent together, and stir for a certain period of time to obtain a protective film adhesive;

[0030] (2) Apply the protective film adhesive to the release surface of the release film, and dry at 125°C for 10 minutes;

[0031] (3) After drying, transfer the release film coated with UV-viscosity-reducing adhesive to the surface of the corona-treated substrate, and ripen for 48-72h at a temperature of 50°C to obtain the high-strength Stick and peel off the single-sided protective film tape.

[0032] The technological method of described curved surface grinding, comprises the following steps:

[0033] (1) Die-cut the single-sided protective film tape into a 15mm*1mm arc-shaped hole structure.

[0034] (2) Remove the centrifugal film, stick the single-sided tape on...

specific example 1

[0037] Specific example 1 The present invention provides several protective film substrates, including polyetheretherketone substrate (PEEK), polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), thermoplastic polyurethane elastomer rubber (TPU), the substrate thickness is 50 microns. Use sponge sandpaper to apply a pressure of 500g, and perform a single 15s, 3-cycle grinding test on the protective film to observe the weight loss of the protective film.

[0038]

[0039]

[0040] It can be seen from the table that different polymer material protective films have different wear resistance properties. After multiple cycles of grinding, it was found that PEEK had the best grinding performance, and the protective film was not damaged after grinding, while PET and PTFE The three polymer substrates of TPU and TPU all have different degrees of grinding damage.

[0041] Concrete example 2: In order to meet the grinding requirements of different modulus products, the...

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Abstract

The invention provides a single-sided protective film adhesive tape, which comprises a polyether-ether-ketone base material. Under the test condition of 1Hz frequency, the storage modulus of the polyether-ether-ketone base material is in the range of 2.2-3.2 GPa, the elongation at break is in the range of 150%-200%, and the thickness of the polyether-ether-ketone base material is 25-75 microns. The invention further discloses a preparation method of the single-sided protective film adhesive tape and application of the single-sided protective film adhesive tape to improvement of wear resistance of an article during polishing of a high-strength sprue. The protective film capable of meeting high-strength polishing disclosed by the invention not only has certain bending characteristic to meet polishing of different planes, but also has certain strength and toughness to meet wear resistance, plays a very good fixing role in the polishing process, does not cause pollution to a product, and has strength and toughness to meet the wear resistance.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a single-sided protective film adhesive tape and a preparation method and application thereof. Background technique [0002] Adhesive tape is a commonly used modern industrial product, which is used in all aspects of social life. Classified from the use of adhesive tape, it can be divided into warning tape, carpet tape, electrical tape, protective film tape, wrapping film tape, sealing tape, module tape . At present, a kind of adhesive tape with wear resistance and convenient use has emerged on the market. Its application purpose is mainly to protect the covering, prolong the service life of the item, improve its use value, add new functions, beautify the item, etc., which is different from the current one. Adhesive tape is commonly used to hold separated objects together. Such as covering the desktop to improve wear resistance and aesthetic performance, covering the road as a mar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C09J133/04
CPCC09J7/25C09J7/385C09J133/04C09J2433/00
Inventor 扶晓波
Owner SUZHOU HI TECH ELECTRONICS CO LTD
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