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Water-proof sealing adhesive tape and its preparation method

A waterproof sealing, tape technology, applied in chemical instruments and methods, other chemical processes, paper/cardboard layered products, etc., can solve the problems of low tensile strength and peel strength, poor high and low temperature resistance, etc. High strength and peel strength, excellent high and low temperature resistance, and easy availability of raw materials

Active Publication Date: 2008-09-17
CHANGYUAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the problems of low tensile strength and peel strength and poor high and low temperature resistance of existing waterproof sealing tapes, and to provide a high tensile strength and peel strength, excellent high and low temperature resistance, 90 Waterproof sealing tape with excellent waterproof sealing effect under high temperature of ℃ and low temperature of -40 ℃ and pressure of 0.08Mpa and preparation method thereof

Method used

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  • Water-proof sealing adhesive tape and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 100 parts of butyl rubber and 8 parts of ethylene-vinyl acetate copolymer (EVA). Repeatedly knead the above materials on an open mill at a temperature of 60°C until they are uniformly plasticized. Take them out and place them in an internal mixer, and add two 60 parts of silicon oxide, 15 parts of talc powder, 5 parts of terpene resin, 65 parts of polyisobutylene, 3 parts of iron red powder, 3 parts of dioctyl phthalate and 2,2,4-trimethyl-1,2- 1 part of dihydroquinoline polymer, fully mixed at room temperature to obtain a waterproof sealing layer 1, then cut into strips, put the strips into an extruder, and extrude them into strips with a width of 3 cm and a thickness of 0.8 mm. Then through the anti-adhesive oil paper 2 calender compound of its two sides, make waterproof sealing tape. The waterproof sealing tape prepared in this way has an insulation strength of 1.1*1014Ω cm, a peel strength of 1.0N / cm, a shear strength of 0.10Mpa, a tensile strength of 0.15Mpa, ...

Embodiment 2

[0028] Take 100 parts of butyl rubber and 25 parts of ethylene-vinyl acetate copolymer (EVA), and repeatedly knead the above materials on an open mill at a temperature of 60°C until the plasticization is uniform, take them out and put them in an internal mixer, and add two 80 parts of silicon oxide, 40 parts of talc powder, 15 parts of terpene resin, 105 parts of polyisobutylene, 10 parts of iron red powder, 10 parts of dibutyl phthalate and 2,6-di-tert-butyl-4-methylphenol 5 parts, mixed fully and evenly at room temperature to obtain the waterproof sealing layer 1, then cut into strips, put the strips into the extruder, extruded into strips with a width of 3cm and a thickness of 0.8mm, and then passed through the waterproof sealing layer on both sides. The sticky oil paper 2 is calendered and compounded to make a waterproof sealing tape. The insulating strength of the waterproof sealing tape thus prepared reaches 1.2*1014Ω·cm, the peel strength reaches 1.4N / cm, the shear stre...

Embodiment 3

[0031] Take 100 parts of butyl rubber and 15 parts of ethylene-vinyl acetate copolymer (EVA), and repeatedly knead the above materials on an open mill at a temperature of 60°C until the plasticization is uniform, take them out and put them in the internal mixer, and add two 70 parts of silicon oxide, 28 parts of talcum powder, 80 parts of polyisobutylene, 2 parts of epoxy resin, 5 parts of iron red powder, 5 parts of epoxy soybean oil and 3 parts of 2-mercaptobenzimidazole zinc salt, fully Knead evenly to obtain a waterproof sealing layer 1, then cut into strips, put the strips into an extruder, extrude them into strips with a width of 3cm and a thickness of 0.8mm, and then compound them by calendering with the anti-sticking oil paper 2 on both sides. Waterproof sealing tape. The waterproof sealing tape prepared in this way has an insulation strength of 1.2*1014Ω·cm, a peel strength of 1.2N / cm, a shear strength of 0.12Mpa, a breaking strength of 0.12Mpa, and a breaking elongat...

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Abstract

The invention provides a waterproof sealing adhesive tape and the preparation method thereof, which relates to the technology field of the waterproof sealing adhesive tape and the preparation thereof. The waterproof sealing adhesive tape is composed of a waterproof sealing layer and two pieces of adhesive-proof oil paper attached to the both sides of the waterproof sealing layer, the waterproof sealing layer and the two pieces of adhesive-proof oil paper are produced through calendering and compounding, the waterproof sealing layer comprises the following components and contents (by weight): 100 parts of butyl rubber, 60 to 80 parts of silicon dioxide, 8 to 25 parts of polyolefine, and 70 to 120 parts of tackifier. The waterproof sealing adhesive tape has the raw materials which are easy to be acquired, low in cost and suitable for the industrialized production, the performance index thereof can fully exceed the technical level of the similar domestic products, the product has high tensile strength and peeling strength and good high and low temperature resistant performances, and can still play the role of waterproof sealing under the high temperature of 90 DEG C and the low temperature of minus 40 DEG C and under the pressure of 0.08 MPA.

Description

technical field [0001] The invention relates to the technical field of waterproof sealing tape and its preparation, in particular to a waterproof sealing tape with high tensile strength and peeling strength, excellent high and low temperature resistance and a preparation method thereof. Background technique [0002] Heat-shrinkable materials and waterproof sealing tape are usually used to insulate and waterproof the joints of various wires and cables. When performing insulation and waterproof sealing, the waterproof sealing tape is first wrapped around the joints of the wires and cables, and then the outside is covered with a heat-shrinkable tube, heated and heat-shrinked. The tube makes it shrink, and the heat-shrinkable tube is bonded to the wire and cable through the waterproof sealing tape, which plays the role of insulation and waterproof sealing of the joint of the wire and cable. At present, this kind of waterproof sealing tape manufactured in China has a peel strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/10C09K3/18B32B29/00B32B7/00
Inventor 李江源倪昭华赵成刚王进李代双
Owner CHANGYUAN GRP
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