Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of water-based polymer composite adhesive

A water-based polymer and composite adhesive technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of difficult operation of the preparation method, release of free formaldehyde and pollute the environment, and achieve easy operation, pH Values ​​and changes in electrolytes have no significant effect on

Inactive Publication Date: 2011-12-28
NORTHEAST FORESTRY UNIVERSITY
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to solve the problem that existing urea-formaldehyde resin adhesives release free formaldehyde to pollute the environment and the preparation method is difficult to operate, and provide a method for preparing a water-based polymer composite adhesive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific embodiment 1: The preparation method of the water-based polymer composite adhesive in this embodiment is implemented according to the following steps: 1. The polyol of 11.28-20.60 g is decompressed at a temperature of 120+5°C and a vacuum of 0.1 MPa Dehydration for 80-150 minutes, and then in a nitrogen atmosphere, add 48.14-879.6 g of polyisocyanate, react at normal temperature for 10-15 minutes, then raise the temperature to 30-100 ° C, and pre-polymerize for 2-4 hours to obtain a prepolymer; 2. Add 1.38-30g of emulsifier and 1.98-30g of stabilizer into 138.64-2099.80g of water, and stir for 10-60min at a stirring speed of 600-1500r / min to obtain a mixed solution; 3. Mix the prepolymer Add it into the mixed solution, and then stir for 10-60min at a stirring speed of 600-3000r / min to obtain an isocyanate emulsion; 4. Mix the isocyanate emulsion with 466.7-7000.46g of water-based polymer, and then mix it at a stirring speed of 300 Under the condition of ~600r / m...

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 1, 12.60-17.80 g of polyols are dehydrated under reduced pressure at a temperature of 120° C. and a vacuum of 0.1 MPa. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0013] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in Step 1, 14.80-16.30 g of polyols are dehydrated under reduced pressure at a temperature of 120° C. and a vacuum of 0.1 MPa. Other steps and parameters are the same as those in Embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
strengthaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a water-based polymer composite adhesive, which relates to a preparation method of an adhesive. The method solves the problems that the existing urea-formaldehyde resin adhesive releases free formaldehyde to pollute the environment and the preparation method is difficult to operate. Preparation method: 1. Prepare prepolymer; 2. Prepare mixed solution; 3. Add prepolymer to mixed solution and stir to prepare isocyanate emulsion; 4. Mix and stir isocyanate emulsion with water-based polymer to obtain water-based polymer Composite adhesive. The invention utilizes water-based macromolecules to prepare non-toxic and formaldehyde-free composite adhesives. The invention has cheap raw materials, simple process and simple equipment.

Description

technical field [0001] The invention relates to a preparation method of an adhesive. Background technique [0002] With the continuous improvement of people's living standards, people gradually pay more attention to environmental protection awareness and health awareness. They not only require beautiful and generous interior decoration, but also care about health and environmental protection; people use wood-based panels for interior decoration. , because adhesives must be used in the preparation of wood-based panels, and urea-formaldehyde resins, which currently dominate the market as adhesives, are widely used in wood-based panel manufacturing because of their low price, good process performance, and good bonding performance, but urea-formaldehyde resin adhesives release free The problem of formaldehyde polluting the environment has caused great damage to human health. The most popular method for preparing emulsion adhesives is the ionic self-emulsification method, which ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/10C09J175/00
Inventor 顾继友张彦华高振华朱丽滨沈隽
Owner NORTHEAST FORESTRY UNIVERSITY