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Environmental protection chloroprene rubber adhesive agent and production method thereof

A technology of neoprene adhesives and production methods, applied in the direction of chloroprene adhesives, adhesives, halogen rubber derivative adhesives, etc., can solve the problems of low viscosity, easy delamination, and poor storage stability of neoprene adhesives , to achieve high viscosity, convenient construction, improved adhesion and peel strength

Inactive Publication Date: 2009-04-29
GUANGDONG SANVO CHEM IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pre-reaction solution prepared by using water as a catalyst has low viscosity, and a large amount of magnesium oxide precipitates after a short period of time. The prepared chloroprene adhesive has poor storage stability and is easy to separate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 25kg of cyclohexane into the reaction kettle, start the motor to stir, add 10kg of 2402 phenolic resin, stir for 30-60 minutes until completely dissolved; add 1.2kg of high-activity magnesium oxide, stir for 30-60 minutes until uniformly dispersed; add N-formaldehyde Base-2-pyrrolidone 0.1kg, stir for 6-8 hours until the reaction is complete, prepare the pre-reaction liquid, filter and discharge; add 15kg of ethyl acetate and 30.2kg of environmentally friendly solvent oil into the high-speed sol kettle, start the motor to stir, and then add Changshou 244216kg of chloroprene rubber, 1kg of chlorinated rubber, 0.5kg of fumed silica, and 1kg of BHT were stirred for 4 to 6 hours until completely dissolved; adding the pre-reaction solution and stirred for 30 to 60 minutes to obtain an environmentally friendly chloroprene adhesive.

Embodiment 2

[0030] Add 20kg of cyclohexane into the reaction kettle, start the motor to stir, add 8kg of 2402 phenolic resin, stir for 30-60 minutes until completely dissolved; add 1kg of high-activity magnesium oxide, stir for 30-60 minutes until uniformly dispersed; add N-methyl - 0.05kg of 2-pyrrolidone, stirred for 6 to 8 hours until the reaction was complete, prepared a pre-reaction solution, filtered and discharged; added 20kg of ethyl acetate and 32.95kg of environmentally friendly solvent oil into the high-speed sol kettle, started the motor to stir, and added Shanxi chlorine 244215kg of butyl rubber, 2kg of chlorinated rubber, 0.5kg of fumed silica, and 0.5kg of BHT, stirred for 4 to 6 hours until completely dissolved; added the pre-reaction solution, stirred for 30 to 60 minutes to prepare an environmentally friendly chloroprene adhesive.

Embodiment 3

[0032] Add 30kg of cyclohexane into the reaction kettle, start the motor to stir, add 5kg of 2402 phenolic resin, stir for 30-60 minutes until completely dissolved; add 0.5kg of high-activity magnesium oxide, stir for 30-60 minutes until uniformly dispersed; add N-formaldehyde Base-2-pyrrolidone 0.05kg, stir for 6-8 hours until the reaction is complete, prepare the pre-reaction liquid, filter and discharge; add 10kg of ethyl acetate and 37.95kg of environmentally friendly solvent oil into the high-speed sol kettle, start the motor to stir, and then add chlorine Butadiene rubber A-9014kg, chlorinated rubber 0.5kg, fumed white carbon black 1kg, BHT1kg, stir for 4-6 hours until completely dissolved; add the pre-reaction solution into the high-speed sol kettle, stir for 30-60 minutes, and obtain environmentally friendly chlorine butyl adhesive.

[0033] The technical index of main component in the above-mentioned embodiment is:

[0034] 1. Long life neoprene 2442

[0035] Appear...

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Abstract

The invention discloses an environment-friendly chloroprene rubber adhesive agent which comprises the following compositions: neoprene, alloprene, thixotropic agent, 2402 phenolic resin, extra light calcined magnesia, catalyst, cyclohexane, acetic ether, environment-friendly solvent oil and antioxidant BHT. The invention simultaneously discloses a method for producing the environment-friendly chloroprene rubber adhesive agent. The environment-friendly chloroprene rubber adhesive agent has the following advantages: 1. the agent is environment-friendly, does not contain toxic solvents of triphen and halogenated hydrocarbon, and meets the standard requirement of Technical Requirement for Environmental Labeling Products-Adhesives HJ / T 220-2005 2. the anhydrous catalyst is adopted for the preparation of a pre-reaction solution which has high viscosity and good storage stability; 3. gas phase method silica aerogel is added as the thixotropic agent; and the thixotropic index can reach 1.5 and is convenient for construction; and 4. the neoprene and the alloprene are combined for use to greatly improve the adhesive force and peeling strength to metal and other polar materials.

Description

technical field [0001] The invention relates to an environment-friendly chloroprene adhesive which is benzene-free, low-toxic, has excellent comprehensive performance and can bond various materials such as rubber, leather, fabric, wood, paper, metal and the like. [0002] The present invention also relates to a production method of the above-mentioned environment-friendly chloroprene adhesive. Background technique [0003] Neoprene adhesives are excellent in price and low in price, widely used and strong in applicability, but most of the neoprene adhesives on the market contain highly toxic solvents such as "triphenyl" (benzene, toluene, xylene) and halogenated hydrocarbons in different proportions , long-term exposure will cause chronic poisoning of the human body, and will also cause serious pollution to the surrounding environment. The hazards of these adhesives that people are worried about have long been restricted abroad, and it was not until July 2002 that the harmfu...

Claims

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Application Information

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IPC IPC(8): C09J111/00C09J115/02
Inventor 陈炳耀张意田陈亮韦先强
Owner GUANGDONG SANVO CHEM IND TECH
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