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防螨抗菌强化木地板的研制 总被引:1,自引:0,他引:1
筛选并改进抗菌剂添加在胶液中,采用表面改性剂改善抗菌剂与胶液的相溶性能,按现行生产工艺浸渍胶膜纸,利用现有生产设备及工艺技术压制强化木地板。经检测认定,地板各项物理力学性能达到国家标准,防螨抗菌效果明显。 相似文献
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采用水性高分子异氰酸酯胶黏剂,以柞木、赛鞋木豆(乌金木)和橡胶木3种木材单板为表板制备杨木芯的三层实木复合地板.结果表明:赛鞋木豆(乌金木)和橡胶木的胶合性能良好,而柞木性能较差,分析认为与柞木木材表面性能以及胶合工艺等有关. 相似文献
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An evaluation of behavioral and hygienic conditions was carried out with 4 materials used as free-stall flooring for dairy cows: polyethylene vinyl acetate (EVA) and polypropylene vinyl acetate (PVA) mats, wood shavings, and solid manure. The free-stall type selected by cows was evaluated in response to changes in environmental temperature and humidity. Two tests were used: 1) a preference test, in which 8 cows were housed in a pen with 32 free stalls and 4 types of flooring; and 2) an aversion test, in which 32 cows were placed in 4 pens, each with 8 free stalls. The free stalls in each pen had a single type of bedding material. These tests showed that the comfort of dairy cows was predominantly influenced by environmental conditions. The preference test for lying showed that cows preferred free-stall floors with EVA mats over those with PVA mats, wood shavings, and solid manure (332.4 ± 24.0 vs. 130.8 ± 6.2, 160.9 ± 23.7, and 102.6 ± 23.2 min/d, respectively), but under conditions of heat stress, with a temperature-humidity index > 80, they chose wood shavings and solid manure lying areas. These results were confirmed by the aversion test. In all experimental and environmental conditions, the PVA mats were the least suitable. The mats contaminated with organic manure and the free stalls bedded with wood shavings and organic solids did not differ in either the coliform load on the lying surfaces (EVA mats: 290 ± 25; PVA mats: 306 ± 33; wood shavings: 290 ± 39; and solid manure: 305 ± 23 log10 cfu/mL) or the total bacterial count in the raw milk (EVA mats: 232 ± 22; PVA mats: 233 + 24; wood shavings: 221 ± 24; and solid manure: 220 ± 25 log10 cfu/mL). These results demonstrate that the comfort of dairy cows housed in barns with free stalls as resting areas does not depend only on the material used, but also on the value of the material in microenvironmental conditions. 相似文献