Anti-boiling-water vegetable protein-based wood adhesive, preparation method and application of same

[0038] Example 1 Preparation of boiling water-resistant vegetable protein-based wood adhesive

[0039] A boiled water-resistant vegetable protein-based wood adhesive for wood-based panels, with a formula: 65Kg of softened water, 35Kg of vegetable protein meal, 8Kg of water-based polyurethane adhesive, and 4Kg of water-based epoxy resin crosslinking agent (glycidyl ether).

[0040] The preparation method of the above boiling water-resistant vegetable protein-based wood adhesive includes the following steps:

[0041] S1 In a reactor equipped with a stirrer, add demineralized water and vegetable protein meal according to the ratio and stir evenly;

[0042] S2 is added to the water-based polyurethane adhesive according to the proportion and stirred evenly;

[0043] S3 adds water-based epoxy resin crosslinking agent (glycidyl ether) according to the proportion and performs homogenizer treatment, and the pressure of homogenization treatment is 25MPa.

[0044] Three batches of parallel samples wer

[0045] Example 2 Preparation of boiling water-resistant vegetable protein-based wood adhesive

[0046] A boiling water-resistant vegetable protein-based wood adhesive for wood-based panels. The formula: softened water 70Kg, vegetable protein meal 30Kg, water-based polyurethane adhesive 7Kg, and water-based epoxy resin crosslinking agent (PAE) 3Kg.

[0047] The preparation method is the same as in Example 1.

[0048] Three batches of parallel samples were prepared in the same way, and the performance and quality indexes of the prepared adhesives are shown in Table 1.

[0049] Example 3 Preparation of boiling water-resistant vegetable protein-based wood adhesive

[0050] A boiling water-resistant vegetable protein-based wood adhesive for wood-based panels. The formula: 75Kg of softened water, 25Kg of vegetable protein meal, 6Kg of water-based polyurethane adhesive, and 2Kg of water-based epoxy resin crosslinking agent (PAE).

[0051] The preparation method is the same as in Example 1.

[0052] Three batches of parallel samples were prepared in the same way, and the performance and quality indexes of the prepared adhesives are shown in Table 1.

[0053] Table 1 Performance indicators of soy protein adhesive

[0054]