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Environment-friendly waterborne polyurethane adhesive and preparation method thereof

A water-based polyurethane and adhesive technology, which is applied in the direction of adhesives, epoxy resin glue, adhesive types, etc., can solve the problems affecting the use of polyurethane adhesives, the decline of internal structure force, and the impact on quality of use, so as to improve Substitute low surface energy, enhance water repellency, and have strong practicability

Inactive Publication Date: 2018-10-12
华普通用技术研究(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the continuous development of current production technology, some common polyurethane adhesives cannot meet specific use requirements, mainly in terms of water resistance and chemical resistance, and it is easy to affect the quality of use due to changes in the use environment. However, due to the lack of shielding structure of traditional polyurethane adhesives, the force between the internal structures decreases during use, and it is easy to appear difficult to attach, which affects the use of polyurethane adhesives.

Method used

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  • Environment-friendly waterborne polyurethane adhesive and preparation method thereof
  • Environment-friendly waterborne polyurethane adhesive and preparation method thereof
  • Environment-friendly waterborne polyurethane adhesive and preparation method thereof

Examples

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Embodiment 1

[0047] Such as Figure 1 to Figure 8 As shown, the present invention provides a water-based polyurethane adhesive production line, on the production line frame 15 of the polyurethane adhesive production line, a material storage classification mechanism 1 for raw material storage and classification is installed, and the automatic allocation of quantitative allocation of raw materials Mechanism 13 and forming mixing drum 14, the forming mixing drum 14 is connected with forming material dispensing assembly 7 for quantitatively discharging molding materials, and the storage and sorting mechanism 1 includes several main material drums 101 installed on the production line frame 15 and several secondary barrels 102, the main barrel 101 and the top of the secondary barrel 102 are connected with a guide hopper 103, and the bottom ends of the main barrel 101 and the secondary barrel 102 are connected with the forming mixing drum 14, through the storage The material classification mechan...

Embodiment 2

[0085] A formulation of an environment-friendly water-based polyurethane adhesive, which comprises the following raw materials in parts by weight:

[0086] 10 parts of aromatic isocyanate, 5 parts of polyester polyol, 10 parts of polyether polyol, 2 parts of catalyst, 15 parts of dimethylformamide solvent, 3 parts of dimethylol propionic acid, 1 part of acetone, 5 parts of polyisocyanate , 6 parts of silicone solvent, 4 parts of epoxy resin, 10 parts of fluoroalkyl polymer emulsion, 1 part of sealing agent, and 8 parts of tackifier.

[0087] A formulation of an environment-friendly water-based polyurethane adhesive, which comprises the following raw materials in parts by weight:

[0088] 15 parts of aromatic isocyanate, 10 parts of polyester polyol, 15 parts of polyether polyol, 4 parts of catalyst, 20 parts of dimethylformamide solvent, 6 parts of dimethylol propionic acid, 2 parts of acetone, 7 parts of polyisocyanate , 8 parts of silicone solvent, 6 parts of epoxy resin, 1...

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Abstract

The invention discloses a formula of an environment-friendly waterborne polyurethane adhesive. The adhesive is prepared from raw materials in parts by weight as follows: 10-20 parts of aromatic isocyanate, 5-15 parts of polyester polyol, 10-20 parts of polyether polyol, 2-6 parts of a catalyst, 15-25 parts of a dimethylformamide solvent, 3-9 parts of dimethylolpropionic acid, 1-3 parts of acetone,5-9 parts of polyisocyanate, 6-10 parts of an organosilicon solvent, 4-8 parts of epoxy resin, 10-14 parts of a fluoroalkyl polymer emulsion, 1-3 parts of a sealing agent and 8-10 parts of a tackifier. The invention also discloses a preparation method of the environment-friendly waterborne polyurethane adhesive. The method comprises the steps as follows: S100, raw material matching; S200, raw material mixing; S300, stirring forming; S400, material addition for modification; S500, mixing forming. The produced product has good hydrolysis resistance and chemical resistance, meanwhile, the low surface energy, lubricity, hydrophobic and oleophobic properties, contamination resistance and biocompatibility of a formed product coating are effectively improved through shielding protection, the overall bonding strength is improved, and the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an environment-friendly water-based polyurethane adhesive and a preparation method thereof. Background technique [0002] Polyurethane adhesives refer to adhesives containing carbamate groups (-NHCOO-) or isocyanate groups (-NCO) in the molecular chain. Polyurethane adhesives are divided into two categories: polyisocyanate and polyurethane. Polyisocyanate molecular chains contain isocyano groups (-NCO) and carbamate groups (-NH-COO-), so polyurethane adhesives exhibit high activity and polarity, and substrates containing active hydrogen, such as foam, Porous materials such as plastic, wood, leather, fabric, paper, ceramics, and materials with smooth surfaces such as metal, glass, rubber, plastic, etc. have excellent chemical adhesion. [0003] Polyurethane adhesive is an important part of the rapidly developing polyurethane resin. It has excellent performance and has been wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C09J163/00C08G18/66C08G18/48C08G18/42C08G18/34
CPCC09J175/08C08G18/348C08G18/4018C08G18/42C08G18/48C08G18/6625C09J175/06C08L75/06C08L63/00
Inventor 方志彦
Owner 华普通用技术研究(广州)有限公司