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High-temperature-resistant masking tape and preparation method thereof

A textured paper, high temperature resistant technology, used in adhesives, natural rubber adhesives, non-polymer adhesive additives, etc., can solve the problems of poor adhesive tape viscosity, low production efficiency, poor temperature resistance, etc. To achieve stable viscosity and high temperature resistance, improve production efficiency

Inactive Publication Date: 2020-12-01
福建友谊胶粘带集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Solvent rubber-type pressure-sensitive adhesive is used as the main crosslinking agent of masking tape. Poor temperature resistance is one of the problems to be overcome. Currently, it is recognized in the market to improve the temperature resistance of rubber-type pressure-sensitive adhesives to 150°C. The crosslinking of vulcanized resin can be achieved, but the crosslinking environment of vulcanized resin is relatively harsh. The general formula requires baking at high temperature and for a long time to meet the temperature resistance requirement. Such treatment leads to low production efficiency, and the production speed is generally only 20m Within 100m / min or even 150m / min of ordinary adhesive tape, the production speed efficiency is significantly lower than that of ordinary tape, and the adhesive tape tends to deteriorate after long-term high-temperature baking, and the temperature resistance requirements for textured paper substrates also become more stringent. high

Method used

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preparation example Construction

[0018] The present invention also relates to a method for preparing a high-temperature masking tape, comprising the steps of:

[0019] Step 1: natural rubber, a petroleum resin, curing resin, an inorganic filler, an antioxidant, and uniformly mixed at a ratio of toluene to obtain a first mixture;

[0020] Step 2: Add the first mix thiuram accelerators, stir and let stand at 30-40 deg.] C over 12h, to obtain the glue;

[0021] Step 3: The glue coated on textured paper substrate, after drying, to obtain high-temperature masking tape.

[0022] In the above embodiment, by adding a specific proportion in a particular glue formulation for promoting vulcanization accelerator system, said accelerator mixture of the MZ accelerator, accelerators and accelerator BZ PX scale of 2:1:3 is made through a specific temperature and allowed to stand for a certain time of the pretreatment, so that the resulting high temperature masking tape having a more stable viscosity and high temperature performa...

Embodiment 1

[0030] A method of preparing a high temperature masking tape, comprising the steps of:

[0031] Step 1: 90 parts of natural rubber, 75 parts of petroleum resin, 15 parts of curing resin, 13 parts of an inorganic filler, an antioxidant, and 0.8 parts of 300 parts of toluene were mixed uniformly in proportion to obtain a first mixture;

[0032] Step 2: In the first mix was added 0.2 parts of accelerator, the accelerator by mixing the MZ accelerator, accelerator BZ PX and accelerators from the scale 2:1:3, stir at 30 deg.] C under He was allowed to stand 12h, to obtain the glue;

[0033] Step 3: The glue coated on textured paper substrate, 170 ℃ and dried at high temperature to obtain masking tape.

Embodiment 2

[0035] A method of preparing a high temperature masking tape, comprising the steps of:

[0036] Step 1: 100 parts of natural rubber, 80 parts of petroleum resin, 17 parts of curing resin, 15 parts of an inorganic filler, an antioxidant and parts 315 parts of toluene were mixed uniformly in proportion to obtain a first mixture;

[0037] Step 2: In a first mix, 0.3 parts of accelerator, the accelerator, accelerators and accelerator BZ PX mixture of accelerator from the MZ to scale 2:1:3, stir at 35 ℃ He was allowed to stand 24h, to obtain the glue;

[0038] Step 3: The glue coated on textured paper substrate, dried at 175 deg.] C, to obtain high-temperature masking tape.

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PUM

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Abstract

The invention relates to the technical field of adhesive tapes, particularly to a high-temperature-resistant masking tape and a preparation method thereof. The masking tape comprises a masking tape substrate and a glue layer coating the surface of the masking tape substrate. The glue layer is prepared from the following raw materials in parts by weight: 90 to 110 parts of natural rubber, 75 to 85parts of petroleum resin, 15 to 30 parts of vulcanized resin, 13 to 17 parts of an inorganic filler, 0.8 to 1.2 parts of an antioxidant, 300 to 330 parts of methylbenzene and 0.2 to 0.5 part of a thiuram accelerant. The prepared high-temperature-resistant masking tape has more stable viscosity and high-temperature resistance, so high-temperature drying at 170-180 DEG C can be conducted, a production speed can reach 50 m / min, and the production efficiency of the masking tape is greatly improved.

Description

Technical field [0001] Technical Field The present invention relates to tape, and particularly to a high-temperature masking tape and a preparation method. Background technique [0002] Tape is one commonly used in daily life and work tools for fixing and masking purposes, wherein the masking tape which is an indispensable. The paint masking and fixed is an important aspect of masking tape different from other tape. Wherein due to the masking tape is widely used in the automotive paint, painting the electronic component parts, circuit boards and other fixed, high temperature baking and painting process requires wiring board generates heat and other factors, required masking tape must be able to reach high temperatures 150 ℃ requirements. [0003] Solvent rubber based pressure sensitive adhesive masking tape as the main crosslinker, heat resistance is one of the difference required to overcome the problem, currently recognized rubber pressure-sensitive adhesive to enhance the heat...

Claims

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Application Information

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IPC IPC(8): C09J7/21C09J7/30C09J107/00C09J157/02C09J201/00C09J11/04C09J11/06
CPCC08K2003/2296C08K2201/014C08L2201/08C08L2205/03C09J11/04C09J11/06C09J107/00C09J2400/283C09J2407/00C09J7/21C09J7/30C08L57/02C08L101/00C08K13/02C08K3/22C08K5/39C08K5/0091C08K5/40
Inventor 周海生林克兴林克波林子茂
Owner 福建友谊胶粘带集团有限公司
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