电镀与涂饰
電鍍與塗飾
전도여도식
ELECTROPLATING & FINISHING
2014年
6期
243-246
,共4页
建筑护栏%防腐%环氧%丙烯酸聚氨酯%纳米二氧化硅%改性
建築護欄%防腐%環氧%丙烯痠聚氨酯%納米二氧化硅%改性
건축호란%방부%배양%병희산취안지%납미이양화규%개성
building guardrail%corrosion protection%epoxy%acrylic polyurethane%nano-silica%modification
纳米二氧化硅改性环氧树脂涂料因在树脂分子链中引入了 Si─O 柔性链段和富有弹性的网状硅氧四面体结构，使得涂层的柔韧性和附着力得到显著改善，防腐蚀性能提高。以纳米二氧化硅改性环氧涂料为底漆、丙烯酸聚氨酯涂料为面漆，应用于海南某高级酒店护栏的防护中，详细介绍了涂层体系的施工工艺，包括底材前处理、喷涂纳米二氧化硅改性环氧底漆、刮涂腻子层、喷涂丙烯酸聚氨酯面漆以及修补，测试了复合涂层的性能。结果表明，该复合涂层附着力1级，冲击强度≥50 kg·cm，柔韧性≤1 mm，硬度≥2H，耐盐雾腐蚀时间≥3000 h，耐人工加速老化时间≥1000 h。该涂层配套体系在酒店护栏上使用一年后，涂层无失光、变色等现象，显示出优异的防护性能和装饰性能。
納米二氧化硅改性環氧樹脂塗料因在樹脂分子鏈中引入瞭 Si─O 柔性鏈段和富有彈性的網狀硅氧四麵體結構，使得塗層的柔韌性和附著力得到顯著改善，防腐蝕性能提高。以納米二氧化硅改性環氧塗料為底漆、丙烯痠聚氨酯塗料為麵漆，應用于海南某高級酒店護欄的防護中，詳細介紹瞭塗層體繫的施工工藝，包括底材前處理、噴塗納米二氧化硅改性環氧底漆、颳塗膩子層、噴塗丙烯痠聚氨酯麵漆以及脩補，測試瞭複閤塗層的性能。結果錶明，該複閤塗層附著力1級，遲擊彊度≥50 kg·cm，柔韌性≤1 mm，硬度≥2H，耐鹽霧腐蝕時間≥3000 h，耐人工加速老化時間≥1000 h。該塗層配套體繫在酒店護欄上使用一年後，塗層無失光、變色等現象，顯示齣優異的防護性能和裝飾性能。
납미이양화규개성배양수지도료인재수지분자련중인입료 Si─O 유성련단화부유탄성적망상규양사면체결구，사득도층적유인성화부착력득도현저개선，방부식성능제고。이납미이양화규개성배양도료위저칠、병희산취안지도료위면칠，응용우해남모고급주점호란적방호중，상세개소료도층체계적시공공예，포괄저재전처리、분도납미이양화규개성배양저칠、괄도니자층、분도병희산취안지면칠이급수보，측시료복합도층적성능。결과표명，해복합도층부착력1급，충격강도≥50 kg·cm，유인성≤1 mm，경도≥2H，내염무부식시간≥3000 h，내인공가속노화시간≥1000 h。해도층배투체계재주점호란상사용일년후，도층무실광、변색등현상，현시출우이적방호성능화장식성능。
The nano-SiO2 modified epoxy coating has improved flexibility, adhesion strength, and corrosion resistance due to the introduction of flexible Si─O chain segment and elastic mesh-like silicon–oxygen tetrahedron structure into the molecular chain of resin. In the paper, a nano-SiO2 modified epoxy coating as primer and an acrylic polyurethane as topcoat were applied to the protection of guardrails of a high-class hotel in Hainan. The construction process of the coating system was introduced in detail, including substrate pretreatment, spraying nano-SiO2 modified epoxy primer, puttying, spraying acrylic polyurethane topcoat, and finishing. The performance of the composite coating was tested as follows: adhesion strength 1-grade, impact strength ≥50 kg·cm, flexibility ≤1 mm, pencil hardness≥2H, salt spray corrosion resistance≥3 000 h, and artificially accelerated aging time≥1 000 h. The coating system which has been applied to guardrails of the hotel for one year does not loss luster and discolor, presenting excellent protective and decorative properties.
