Preparation method of special polyethylene anti-seepage composite hot-melt adhesive for geotextile
A technology of anti-seepage geotextile and hot-melt adhesive, which is applied in the direction of graft polymer adhesive, adhesive, adhesive type, etc., and can solve problems such as polyethylene anti-seepage geotextile hot-melt adhesive that is not mentioned
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Embodiment 1
[0018] Accurately weigh 20.0g of low-density polyethylene with a melt index of 26.6g / 10min, 120.0g of water, 10.0g of xylene, and 0.16g of alkylphenol polyoxyethylene ether OP-100.16g, and add them to a three-necked flask with a reflux tube and a stirrer. , under nitrogen protection, stirred and heated to 80 °C for 2 h, then heated to 90 °C, added maleic anhydride 7.0 g, dibenzoyl peroxide 0.5 g and N,N-dimethylformamide 1.5 g, stirred and refluxed The reaction was stopped after 4 h of reaction. The obtained product was filtered, washed with water and dried. After NMR analysis and test, the graft ratio of maleic anhydride was 6.12%. The product was blended with JCC-115 type copolyester hot melt adhesive powder with a melt index of 30g / 10min / 160℃ in a mass ratio of 4.5:1 , obtain composite hot melt adhesive, use the obtained hot melt adhesive to bond non-woven fabric and PE film, and carry out peel strength test with reference to ministerial standard FZ / T01085-20000, and its p...
Embodiment 2
[0020] Accurately weigh 20.0 g of low-density polyethylene with a melt index of 22.2 g / 10min, 160.0 g of water, 8.5 g of xylene and 200.14 g of polysorbate, and add them to a three-necked flask with a reflux tube and a stirrer, under nitrogen protection. The temperature was raised to 75°C for 1.5h under stirring, and then heated to 95°C, and then 6.5g maleic anhydride, 0.6g dibenzoyl peroxide and 1.6g N,N-methylacetamide were added, and the reaction was stopped after stirring and refluxing for 3.5h. reaction. The obtained product was filtered, washed with water and dried. After NMR analysis and test, the graft ratio of maleic anhydride was 5.37%. The product was blended with JCC-116 type copolyester hot melt adhesive powder with a melt index of 24g / 10min / 160°C in a mass ratio of 5.0:1. , obtain composite hot melt adhesive, use the obtained hot melt adhesive to bond non-woven fabric and PE film, and carry out peel strength test with reference to ministerial standard FZ / T01085-...
Embodiment 3
[0022] Accurately weigh 20.0 g of low-density polyethylene with a melt index of 26.6 g / 10min, 100.0 g of water, 7.0 g of xylene and 200.12 g of sorbitan stearate and add them to a three-necked flask with a reflux tube and a stirrer, Under nitrogen protection, the temperature was stirred and heated to 70 °C for 2.0 h, then heated to 85 °C, and then 3.5 g of maleic anhydride, 0.2 g of dibenzoyl peroxide and 1.8 g of N,N-dimethylacetamide were added, and the reaction was stirred and refluxed. The reaction was stopped after 3.0h. The obtained product was filtered, washed with water and dried. After NMR analysis and test, the graft ratio of maleic anhydride was 4.47%. The product was blended with JCC-115 type copolyester hot melt adhesive powder with a melt index of 30g / 10min / 160℃ in a mass ratio of 4.0:1 , a composite hot-melt adhesive was obtained, the obtained hot-melt adhesive was used to bond the non-woven fabric and the PE film, and the peel strength was tested with referenc...
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