Pressure-sensitive type self-adhesive waterproof adhesive

A self-adhesive waterproof, butyl rubber technology, applied in the direction of adhesives, adhesive types, oil/grease/wax adhesives, etc., can solve the problems of excellent self-adhesive waterproof adhesives, no performance, etc.

Active Publication Date: 2016-09-07
南京臻致新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no self-adhesive waterproof adhesive with excellent performance has been developed at present.

Method used

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  • Pressure-sensitive type self-adhesive waterproof adhesive
  • Pressure-sensitive type self-adhesive waterproof adhesive
  • Pressure-sensitive type self-adhesive waterproof adhesive

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] The embodiment of the present invention also provides a preparation method of self-adhesive waterproof glue. The method comprises the steps of:

[0044] (1) Cut the high molecular weight butyl rubber into small pieces and put them into a mixer for stirring; for example, the size of the small pieces can be a 1-2cm square; the mixer can be, for example, a double planetary mixer.

[0045] (2) Put naphthenic oil and antioxidant into the mixer, evacuate to 0.05-0.09MPa, keep the pressure, heat up to 120-130°C, start stirring, and stir at low speed for 60 minutes; the mixer can be, for example, a double planetary Stirrer; the evacuation to 0.05-0.09MPa can prevent the oxygen in the air from being mixed into the oxide material in the material system to cause performance degradation; the speed of the low-speed stirring is, for example, 30-50 rpm.

[0046] (3) Put medium-molecular-weight polyisobutylene, low-molecular-weight polyisobutylene, petroleum resin, EVA elastomer, and ...

Embodiment 1

[0048] Embodiment 1, the preparation method of self-adhesive waterproof glue comprises the following steps:

[0049] (1) Cut high-molecular-weight butyl rubber into thumb-cap-sized fritters and put them into a double planetary mixer;

[0050] (2) Put the naphthenic oil and antioxidant into the double planetary mixer, evacuate to 0.05-0.09MPa, keep the pressure, raise the temperature to 120-130°C, start stirring, and stir at a low speed for 60 minutes;

[0051] (3) Put medium-molecular-weight polyisobutylene, low-molecular-weight polyisobutylene, petroleum resin, EVA elastomer, and ultraviolet absorber into the double planetary mixer, vacuumize to 0.05-0.09MPa, keep the pressure, and keep the temperature of the material at 120-130°C , start stirring, stir at a low speed for 60 minutes, turn on the high-speed disperser, set the speed to 100 rpm, keep it for 20 minutes, adjust the speed to 300 rpm, keep it for 20 minutes, adjust the speed to 600 rpm, keep it for 20 minutes, adjus...

Embodiment 2

[0053] Example 2, the physical performance test results of the self-adhesive waterproof adhesive prepared by the method of the above-mentioned Example 1 are shown in the following table.

[0054] Table 1, the physical property test result of the self-adhesive waterproof glue prepared by the embodiment of the present invention 1

[0055]

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Abstract

The invention discloses a self-adhesive waterproof adhesive. The self-adhesive waterproof adhesive is characterized by being prepared from, by weight, 30-40 parts of butyl rubber with the high molecular weight, 10-20 parts of polyisobutene with the medium molecular weight, 20-30 parts of polyisobutene with the low molecular weight, 10-20 parts of petroleum resin, 1-10 parts of ethylene vinyl acetate (EVA) elastomers, 20-30 parts of naphthenic oil, 0.5-1 part of an antioxidant and 0.5-1 part of an ultraviolet absorbent.

Description

technical field [0001] The disclosure relates to a pressure-sensitive self-adhesive waterproof adhesive, in particular to a butyl-based pressure-sensitive self-adhesive waterproof adhesive for polymer self-adhesive film waterproof rolls. Background technique [0002] Polymer self-adhesive membrane (non-asphalt-based) waterproof membrane is a waterproof membrane specially developed for underground and tunnel engineering, which can form a firm anti-bond with post-poured concrete structure pre-laying. The membrane is a polymer self-adhesive waterproof membrane with a resin polymer (such as EVA, LDPE, HDPE, ECB, etc.) sheet as the main waterproof material, and a self-adhesive adhesive film on the polymer waterproof substrate. The self-adhesive layer of the coil and the anti-environmental change protective layer have self-healing functions. After reacting with the liquid concrete slurry and solidifying, the waterproof layer and the concrete structure are formed without gaps, elim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/22C09J123/20C09J191/00C09J157/02C09J11/06C09J11/08
CPCB29C48/0011C08L23/06C08L2205/025C08L2205/035C08L2207/062C09D7/61C09D133/00C09J11/06C09J11/08C09J123/22E21D11/003E21D11/383C08L23/20C08L57/02C08L23/0853C08L91/00C08L23/22C08L29/04C08K13/02C08K3/36C08L23/0815
Inventor 刘演新
Owner 南京臻致新材料科技有限公司
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