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A kind of hot-melt pressure-sensitive adhesive for PVC electrical tape and preparation method thereof

A technology of hot-melt pressure-sensitive adhesives and electrical tapes, applied in the direction of adhesives, heat-activated films/sheets, film/sheet-shaped adhesives, etc., can solve the problems of application limitations, failure to form tapes, and migration of adhesive layers, etc., to achieve Good pressure sensitivity, anti-transfer, good environmental protection effect

Active Publication Date: 2019-04-02
KUNSHAN JIUQING PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is no thermoplastic elastomer hot-melt pressure-sensitive adhesive applied to PVC electrical tapes at present. Due to the influence of migration and the characteristics of the polarity of the PVC film itself, the adhesive layer will be completely softened, or the adhesive layer will migrate to the back of the film, and the adhesive tape cannot be formed.
Therefore, the application of thermoplastic elastomer hot-melt pressure-sensitive adhesives on PVC electrical tapes has been greatly restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In parts by weight, in the reactor, add 10 parts of terpene, 35 parts of petroleum resin, 8 parts of rosin resin, 20 parts of naphthenic oil, 0.5 part of antioxidant 1010 and 0.6 part of antioxidant 168, while Heat to 170°C while stirring, add 6 parts of SBS, 24 parts of SIS, 15 parts of SEBS, 10 parts of butyl rubber, 3 parts of styrene-butadiene rubber and stir at a high speed of 80r / min for 2h until the mixture is uniform. After standing still, the material is discharged to prepare a hot-melt pressure-sensitive adhesive.

[0031] The prepared hot-melt pressure-sensitive adhesive was coated on a PVC film to prepare a PVC electrical tape. The performance of the PVC electrical tape was measured after being placed for 2 months. The experimental results are shown in Table 1.

Embodiment 2

[0033] In parts by weight, add 20 parts of terpene, 25 parts of petroleum resin, 5 parts of rosin resin, 35 parts of naphthenic oil, 0.4 part of antioxidant 1010 and 0.8 part of antioxidant 168 in the reactor, while Heat to 180°C while stirring, add 10 parts of SBS, 30 parts of SIS, 20 parts of SEBS, 5 parts of butyl rubber, 4 parts of styrene-butadiene rubber and stir at a high speed of 100r / min for 1.5h until the mixture is uniform , discharged after standing still, and a hot-melt pressure-sensitive adhesive was prepared.

[0034] The prepared hot-melt pressure-sensitive adhesive was coated on a PVC film to prepare a PVC electrical tape. The performance of the PVC electrical tape was measured after being placed for 2 months. The experimental results are shown in Table 1.

Embodiment 3

[0036] In parts by weight, add 5 parts of terpene, 45 parts of petroleum resin, 15 parts of rosin resin, 50 parts of naphthenic oil, 0.8 part of antioxidant 1010 and 0.3 part of antioxidant 168 in the reactor, while Heat to 190°C while stirring, add 15 parts of SBS, 10 parts of SIS, 15 parts of SEBS, 15 parts of butyl rubber, 2 parts of styrene-butadiene rubber and stir at a high speed of 150r / min for 1h until the mixture is uniform. After standing still, the material is discharged to prepare a hot-melt pressure-sensitive adhesive.

[0037] The prepared hot-melt pressure-sensitive adhesive was coated on a PVC film to prepare a PVC electrical tape. The performance of the PVC electrical tape was measured after being placed for 2 months. The experimental results are shown in Table 1.

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PUM

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Abstract

The invention discloses a hot-melt pressure-sensitive adhesive for PVC electrical adhesive tape and a preparation method.The hot-melt pressure-sensitive adhesive for the PVC electrical adhesive tape is prepared from, by weight, 10-100 parts of thermoplastic elastomers, 15-100 parts of tackifying agent, 5-50 parts of softener and 0.4-1.5 parts of antioxidant.According to the prepared hot-melt pressure-sensitive adhesive for the PVC electrical adhesive tape, the product is solid, the polarity of the adhesive is appropriate, migration of a plasticizer can be effectively resisted, the hot-melt pressure-sensitive adhesive is prevented from moving to the back of a membrane, and environment friendliness is good.Moreover, due to the fact that the prepared hot-melt pressure-sensitive adhesive is 100% solid without a solvent, cost is low, and after repeated tests in a laboratory and long-time storage on the PVC membrane, the hot-melt pressure-sensitive adhesive still has good pressure sensitivity.Besides, the preparation method of the hot-melt pressure-sensitive adhesive is simple, energy consumption is low, and work efficiency is high.

Description

technical field [0001] The invention relates to the technical field of hot-melt pressure-sensitive adhesives, in particular to a hot-melt pressure-sensitive adhesive used for PVC electrical tapes and a preparation method. Background technique [0002] The scientific name of electrical tape is polyvinyl chloride electrical insulating tape, which is usually referred to as electrical insulating tape or insulating tape in the industry, also known as PVC electrical tape. PVC electrical tape is made of soft polyvinyl chloride (PVC) film as the base material and coated with rubber-type pressure-sensitive adhesive. It has good insulation, flame resistance, voltage resistance, and cold resistance. It is suitable for various resistors Insulation of parts. PVC film has the characteristics of electrical insulation, flame retardancy, and weather resistance. Rubber-type pressure-sensitive adhesives have initial adhesion and bonding strength. They are suitable for insulation winding of va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J157/02C09J191/00C09J153/02C09J123/22C09J109/06C09J145/00C09J7/24C09J7/35
CPCC08L2205/025C08L2205/035C08L2207/04C09J7/245C09J153/025C09J157/02C09J191/00C09J2203/302C09J2301/122C09J2301/302C09J2301/304C09J2427/006C09J2453/00C08L91/00C08L53/02C08L53/025C08L23/22C08L9/06C08L45/00C08L57/02
Inventor 瞿平
Owner KUNSHAN JIUQING PLASTIC
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