Heat-vulcanized adhesive and preparation method thereof

An adhesive, thermal vulcanization technology, applied in the direction of adhesives, adhesive types, polyether adhesives, etc., can solve the problems of poor adhesion, peel strength, poor adhesion, etc. The effect of large-scale promotion, superior tensile strength performance and uniform structure

Active Publication Date: 2018-06-12
兰陵杰森装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest feature of the thermal vulcanization adhesive prepared by this invention is that it contains mononitrosophenol-blocked toluene-2,4-diisocyanate, thereby avoiding the use of easily sublimed aromatic polynitroso compounds or highly toxic polyisocyanate mono Body, while having "preheat resistance" properties or suitable for injection molding process requirements, but its adhesion and peel strength properties are not good
[0005] Chinese patent CN104559194A discloses a halogen-free flame-retardant thermally vulcanized silicone rubber. The raw materials are composed of methyl vinyl silicone rubber raw rubber, hydroxyl-terminated polydimethylsiloxane, fumed silica, isocyanate, aluminum hydroxide, Magnesium hydroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, adding isocyanate, aluminum hydroxide and magnesium hydroxide to compound flame-retardant silicone rubber, can obtain very good resistance Burning effect, while maintaining the good tensile strength of heat vulcanized silicone rubber, but its bonding performance is not good

Method used

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  • Heat-vulcanized adhesive and preparation method thereof
  • Heat-vulcanized adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of thermal vulcanization adhesive and preparation method thereof

[0031] Composition of heat vulcanizing adhesive raw materials:

[0032] Phenoxy resin 3.3kg, methyl vinyl silicone rubber 2.0kg, stearic acid 6.0kg, zinc oxide powder 0.35kg, activated calcium carbonate 0.4kg, accelerator DM0.10kg, accelerator TMTD0.05kg, sulfur 0.15kg, vulcanization Agent PM0.06kg, nano titanium dioxide 0.1kg.

[0033] The preparation of active calcium carbonate comprises the following steps:

[0034] Step 1, put the nano-calcium carbonate powder in a muffle furnace, and bake at 450° C. for 12 hours under an air atmosphere;

[0035] Step II, put the nano-calcium carbonate powder obtained in step I into the sodium fatty acid solution, feed carbon dioxide, adjust the pH of the solution to 5-6, control the activation temperature to 70°C, and activate for 15 minutes;

[0036] In step III, the nano-calcium carbonate powder obtained in step II is filtered and dried to obtain active ...

Embodiment 2

[0043] A kind of thermal vulcanization adhesive and preparation method thereof

[0044] Composition of heat vulcanizing adhesive raw materials:

[0045] 2.5kg of phenoxy resin, 2.5kg of methyl vinyl silicone rubber, 0.3kg of stearic acid, 0.3kg of zinc oxide powder, 0.5kg of activated calcium carbonate, 0.3kg of accelerator D, 0.12kg of sulfur, 0.04kg of vulcanizing agent PM, nano Titanium dioxide 0.2kg.

[0046]The activation process of active calcium carbonate includes the following steps:

[0047] The preparation of active calcium carbonate comprises the following steps:

[0048] Step 1, put the nano-calcium carbonate powder in a muffle furnace, and bake at 600° C. for 8 hours in an air atmosphere;

[0049] Step II, put the nano-calcium carbonate powder obtained in step I into the sodium fatty acid solution, feed carbon dioxide, adjust the pH of the solution to 5-6, control the activation temperature at 80°C, and activate for 10 minutes;

[0050] In step III, the nano-c...

Embodiment 3

[0057] A kind of thermal vulcanization adhesive and preparation method thereof

[0058] Composition of heat vulcanizing adhesive raw materials:

[0059] Phenoxy resin 4.0kg, methyl vinyl silicone rubber 1.5kg, stearic acid 0.5kg, zinc oxide powder 0.4kg, activated calcium carbonate 0.1kg, accelerator TMTM0.03kg, accelerator DM0.03kg, accelerator TMTD0.04kg , sulfur 0.18kg, vulcanizing agent PM0.08kg, nano-titanium dioxide 0.01kg.

[0060] The preparation of active calcium carbonate comprises the following steps:

[0061] Step 1, put the nano-calcium carbonate powder in a muffle furnace, and bake at 500° C. for 12 hours under an air atmosphere;

[0062] Step II, put the nano-calcium carbonate powder obtained in step I into the sodium fatty acid solution, feed carbon dioxide, adjust the pH of the solution to 5-6, control the activation temperature to 75°C, and activate for 15 minutes;

[0063] In step III, the nano-calcium carbonate powder obtained in step II is filtered and ...

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Abstract

The invention discloses a heat-vulcanized adhesive and a preparation method thereof. The heat-vulcanized adhesive is prepared from the following raw materials in parts by weight: 25-40 parts of phenoxy resin, 15-25 parts of methyl vinyl silicone rubber, 3-10 parts of stearic acid, 2-6 parts of zinc oxide powder, 1-6 parts of activated calcium carbonate, 0.5-3 parts of an accelerant, 0.2-2 parts ofsulfur, 0.1-1 part of a vulcanizing agent PM and 0.1-2 parts of nano titanium dioxide. The heat-vulcanized adhesive is excellent in bonding strength, 90-degree peel strength and tensile strength, thepreparation method is simple and convenient, the manufacturing cost is low, and large-scale popularization is facilitated.

Description

technical field [0001] The invention belongs to the field of adhesives, in particular to a thermally vulcanized adhesive and a preparation method thereof. Background technique [0002] The main function of the adhesive is to connect the materials to be bonded together, and the main forms of bonding include structural and non-structural. Structural bonding is a bonding phenomenon in which structural units are fixed together with adhesives, while non-structural bonding mainly refers to surface bonding and functional bonding. In the rubber industry, there are more and more situations where rubber is combined with inorganic materials such as metals and ceramics through bonding. It is widely used in petrochemical, construction, transportation and other industrial fields, and the requirements for bonding technology are increasing. high. The thermal vulcanization adhesive combined with phenolic resin has excellent rubber-metal adhesion, but phenolic resin, especially thermosettin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/12C09J183/07C09J11/04C09J11/06
CPCC08K2003/2241C08K2003/2296C08K2003/265C08K2201/011C09J11/04C09J11/06C09J171/12C08L83/04C08K13/06C08K9/00C08K9/02C08K9/04C08K3/22C08K5/09C08K3/26
Inventor 陈海燕
Owner 兰陵杰森装饰材料有限公司
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