Environment-friendly solvent-free dual-component polyurethane adhesive
A two-component polyurethane, solvent-free technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of brittleness, easy falling off, grass falling off, hard backing, etc., and achieve excellent adhesion , Excellent low temperature resistance, low odor effect
Inactive Publication Date: 2019-03-22
陆欣瑜
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AI Technical Summary
Problems solved by technology
Due to the shortcomings of the traditional adhesive styrene-butadiene latex, such as hard backing, high brittleness, easy to fall off, low bonding strength and poor hydrolysis resistance, the grass tends to fall off from the base cloth, reducing the service life of the lawn
Method used
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Embodiment 1
[0018] Component A servings:
[0019] 45 parts of 3000 molecular weight polyether triol, 45 parts of low molecular weight polyether glycol, 10 parts of dipropylene glycol, 0.5 part of bis(dimethylaminoethyl) ether, 2.5 parts of color paste, 200 parts of calcium carbonate powder;
[0020] At room temperature, mix the raw materials according to the proportion of component A in sequence, and use ultrasonic vibration or high-speed mixer to stir quickly and evenly. Generally, first stir component A except powder evenly, then add powder, and add powder in batches , to prevent uneven dispersion caused by agglomeration, the rapid stirring rate is 300-500r / min, and the stirring time is 2-3min. In addition, it is necessary to control the humidity in the air to prevent moisture from entering. After mixing, it is used as component A material. Then add it to Component A according to the proportion of Component B. After mixing with high-speed shearing for 1 minute, the viscosity is 5000 cps...
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Abstract
The invention discloses an environment-friendly solvent-free dual-component polyurethane adhesive. The environment-friendly solvent-free dual-component polyurethane adhesive adopts polyether polyol asa main base material, which has more excellent low temperature resistance and hydrolysis resistance than the polyester polyol. A solvent-free way is adopted, so as to obtain the advantages of environment protection, small odour, no toxin or pollution and good caking property, and the environment-friendly solvent-free dual-component polyurethane adhesive is very suitable for artificial turfs. Theenvironment-friendly solvent-free dual-component polyurethane adhesive used for the artificial turfs comprises a component A and a component B, wherein the component A is prepared by mixing the following ingredients in parts by weight: 41-78 parts of high molecular weight polyether polyol, 1-18 parts of a chain extender, 100-300 parts of filler, 0.1-1 part of an auxiliary agent and 0.1-1 part of acatalyst; the component B is isocyanate of which the parts by weight are 50-80 during use.
Description
technical field [0001] The invention relates to an adhesive, in particular to an environment-friendly solvent-free two-component polyurethane adhesive. Background technique [0002] Artificial turf is composed of grass silk, base fabric and an adhesive that secures grass silk on the base fabric. Grass silk is generally tufted on the base fabric. Artificial turf has better performance than natural turf because it is easy to maintain and drains quickly. All-weather availability and excellent flatness of the site, it is widely used in sports venues, public practice and leisure places, indoor landscaping and landscape laying. However, in addition to the difference in the performance of grass silk during use, the most important thing is the firmness of grass silk on the base fabric. Because the traditional adhesive styrene-butadiene latex has the disadvantages of hard backing, high brittleness and easy falling off, low bonding strength and poor hydrolysis resistance, the grass s...
Claims
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IPC IPC(8): C09J175/08C09J11/04
CPCC09J175/08C08K2003/265C09J11/04C08K3/26
Inventor 陆欣瑜
Owner 陆欣瑜