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Release agent for isocyanate adhesive and preparation method thereof

An isocyanate and adhesive technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor mold release effect, complicated preparation process, poor stability, etc., to achieve Excellent mold release performance, simple emulsification process, and good emulsion stability

Active Publication Date: 2017-10-31
JIANGXI LYVFENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The release agent currently used in particleboard or MDF has the disadvantages of complex preparation process, high cost, poor stability, and poor demoulding effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Weigh the following raw materials: 8kg of Pingpingjiao or alkyl polyoxyethylene ether; 5kg of sodium tripolyphosphate; 1kg of sodium dodecylbenzenesulfonate; 800kg of water; 100kg of higher fatty acids. Prepare according to the following specific steps:

[0014] 1) First add water into the reaction kettle, stir and heat up to 50°C;

[0015] 2) Then add Pingpingjia O, sodium tripolyphosphate, and sodium dodecylbenzenesulfonate to the reaction kettle, stir and heat up to 90°C, add higher fatty acids, and emulsify for 90 minutes;

[0016] 3) Cool to below 40°C and discharge.

Embodiment 2

[0018] Weigh the following raw materials: Pingpingjia O 10kg; sodium tripolyphosphate 5kg; sodium dodecylbenzenesulfonate 1kg; water 1000kg; higher fatty acid 100kg. Prepare according to the following specific steps:

[0019] 1) First add water into the reaction kettle, stir and heat up to 55°C;

[0020] 2) Then add Pingpingjia O, sodium tripolyphosphate, and sodium dodecylbenzenesulfonate to the reaction kettle, stir and heat up to 90°C, add higher fatty acids, and emulsify for 70 minutes;

[0021] 3) Cool to below 40°C and discharge.

Embodiment 3

[0023] Weigh the following raw materials: 10kg of Pingpingjiao or alkyl polyoxyethylene ether; 7kg of sodium tripolyphosphate; 2kg of sodium dodecylbenzenesulfonate; 1000kg of water; 120kg of higher fatty acid. Prepare according to the following specific steps:

[0024] 1) First add water into the reaction kettle, stir and heat up to 52°C;

[0025] 2) Then add Pingpingjia O, sodium tripolyphosphate, and sodium dodecylbenzenesulfonate to the reaction kettle, stir and heat up to 90°C, add higher fatty acids, and emulsify for 90 minutes;

[0026] 3) Cool to below 40°C and discharge.

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PUM

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Abstract

The invention discloses a release agent for an isocyanate adhesive. The release agent is prepared from, by weight, 8-10 parts of peregal O, 5-7 parts of sodium tripolyphosphate, 1-2 parts of sodium dodecyl benzene sulfonate, 800-1000 parts of water and 100-120 parts of higher aliphatic acid. According to the release agent, the emulsification process is simple, the stability of emulsion is good, the die release performance is superior, and adhesion of a board and a steel plate or a steel band is effectively prevented when the isocyanate adhesive is used for producing a shaving board or a medium-density fiberboard.

Description

technical field [0001] The invention relates to the technical field of wood-based panels, in particular to a release agent for isocyanate adhesives and a preparation method thereof. Background technique [0002] Isocyanate adhesives, that is, MDI adhesives, have been developed for nearly 40 years, and have become an indispensable product for wood-based panels such as structures, composites, and manufacturing laminates. Material gluing; therefore, when producing composite wood-based panels, such as particle board and MDF, a release agent must be added to prevent the bonding between the board and the pressing board during the production process. The release agent currently used in particleboard or MDF has the disadvantages of complex preparation process, high cost, poor stability and poor demoulding effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above shortcomings of the prior art: to provide a simpl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/06C09J11/04C09J11/08
CPCC09J11/04C09J11/06C09J11/08
Inventor 刘援越林景武
Owner JIANGXI LYVFENG NEW MATERIAL CO LTD
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