冷粘制鞋用表在处理剂的制备

为了提高难粘制鞋材料的可粘附性，采用ＣＲ－ＮＲ－ＭＭＡ共聚物，苯酚及配合溶剂对ＰＶＣ，ＰＵ，尼经等芏用材料进行表面预处理，使普通鞋用交对难粘材料的粘接强度得到很大提高。     

PU鞋用胶粘剂系列技术

由于制鞋工业流水线作业程度高 ,目前的粘合剂对鞋材料的浸润性和粘接性、初粘牢度等不能完全符合要求。武汉现代工业技术研究院针对鞋材复杂多变和需要流水线作业等情况 ,通过聚氨酯改性和不同鞋材适应性的研究 ,开发成功了适用于各种鞋材的ＰＵ鞋用胶粘剂系列技术 ,该系列技术适用的鞋底材料有 :ＰＶＣ、ＳＢＳ、ＰＵ、ＴＰＲ、橡胶、牛筋等 ;适用的鞋面材料有ＰＵ人造革、ＰＶＣ人造革、牛皮、猪皮、织物等。按胶粘剂用途可分为 :外底胶、围条胶、抿连胶、合布胶、绷楦胶。其产品特点是初粘强度强、耐黄变性能好、耐低温、耐冲击、耐油、…     

NBR改性HPVC鞋用材料的研制

研究了ＮＢＲ对高聚合度ＰＶＣ（ＨＰＶＣ）进行改性制备的非交联型ＨＰＶＣ／ＮＢＲ热塑性鞋用材料，考察了ＨＰＶＣ和ＮＢＲ并用比、填料、增塑剂及共混温度对材料性能的影响。结果表明，当ＨＰＶＣ／ＮＢＲ＝８７／１３、增塑剂ＤＯＰ用量为７０份、填料用量为２０～２５份、其它助剂适量及共混温度为１７０℃时，制得的鞋用材料性能良好，达到了ＧＢ４４９２—８４标准要求     

PU鞋用胶粘剂系列技术

由于制鞋工业流水线作业程度高 ,目前的粘合剂对鞋材的湿润性和粘接性、初粘牢度等不能完全符合要求。武汉现代工业技术研究院针对鞋材复杂多变和需要流水线作业等情况 ,通过聚氨酯改性和不同鞋材适应性的研究 ,开发成功了适用于各种鞋材的ＰＵ鞋用胶粘剂系列技术 ,该系列技术适用的鞋底材料有 :ＰＶＣ、ＳＢＳ、ＰＵ、ＴＰＲ、橡胶、牛筋等 ;适用的鞋需材料有ＰＵ人造革、ＰＶＣ人造革、牛皮、猪皮、织物等。按胶粘剂用途可分为 :外底胶、围条胶、抿边胶、合布胶、绷楦胶。其产品特点是初粘强度高、耐黄变性能好、耐低温、耐冲击、耐油、耐…     

PU鞋用胶粘剂系列技术

由于制鞋工业流水线作业程度高 ,目前的粘合剂对鞋材的浸润性和粘接性、初粘牢度等不能完全符合要求。武汉现代工业技术研究院针对鞋材复杂多变和需要流水线作业等情况 ,通过聚氨酯改性和不同鞋材适应性的研究 ,开发成功了适用于各种鞋材的ＰＵ鞋用胶粘剂系列技术 ,该系列技术适用的鞋底材料有 :ＰＶＣ、ＳＢＳ、ＰＵ、ＴＰＲ、橡胶、牛筋等 ;适用的鞋面材料有ＰＵ人造革、ＰＶＣ人造革、牛皮、猪皮、织物等。按胶粘剂用途可分为 :外底胶、围条胶、抿边胶、合布胶、绷楦胶。其产品特点是初粘强度强、耐黄变性能好、耐低温、耐冲击、耐油、耐…     

PVCS—2500树脂的特性以及在105℃绝缘级电线电缆中的应用研究

本文采用凝胶渗透色谱仪（ＧＰＣ），差示扫描热量仪（ＤＳＣ）研究了ＰＶＣＳ—２５００树脂的分子量及其分布，玻璃化转化温度（Ｔｇ），并和ＰＶＣＳ—１６７００，Ｓ—１０００树脂进行了比较．并对配合，加工和在１０５℃绝缘级电线电缆中的应用进行了研究．试验结果表明：和低聚合度ＰＶＣ树脂相比，ＰＶＣＳ—２５００树脂的分子量增大，分布变宽，Ｔｇ升高，导致材料的加工温度升高，力学性能提高．可制造优级的耐热电线电缆料     

蝎毒化学有效成分的分离与纯化

用Ｓｅｐｈａｄｅｘ（葡聚糖凝胶）Ｇ—５０凝胶过滤法分离纯化蝎毒粗品，用ＣＭ—ＳｅｐｈａｄａｘＣ—５０离子交换柱层析对蝎毒活性组分进行筛选。     

丙烯酸酯接枝SBS胶粘剂

ＳＢＳ胶粘剂具有内聚强度高、粘接效果好、耐低温性能优越等特点 ,被广泛用于ＳＢＳ鞋底、改性ＰＶＣ鞋底、ＰＶＣ革、ＥＶＡ等材料的制鞋粘合应用上。但ＳＢＳ粘合剂的初始粘接力差 ,耐屈服和耐疲劳性相对较差、青岛大学纺织学院应用化学系采取溶液聚合法 ,使ＭＭＡ和ＥＡ按适当的配比 ,在ＢＰＯ的引发下对ＳＢＳ进行接枝 ,其产物———丙烯酸酯接枝的ＳＢＳ胶粘剂 ,不仅克服了ＳＢＳ胶粘剂初粘力差的缺点 ,而且还提高了ＳＢＳ胶粘剂的终期剥离强度 ,改善了ＳＢＳ胶粘剂与被粘材料的相容性 ,拓宽了ＳＢＳ胶粘剂的应用范围。ＭＭＡ、ＥＡ与…     

煤中致粘组分与不粘组分

用二硫化碳－Ｎ－甲基－２－吡啶烷酮（ＣＳ２－ＮＭＰ）混合溶剂对五种不同阶煤进行了萃取,考察了煤的可溶性与粘结性的关系,结果表明,煤的可溶性与粘结性密切相关,由此提出了煤中主要存在的“致粘组会”和“不粘组分“的概念,即煤在ＣＳ２－ＮＭＰ中的萃取物为致粘组分,萃余物为不粘结分。     

SBS／CR／MMA／BMA四元接枝鞋用胶粘剂的研制

介绍了以甲苯为溶剂,ＢＰＯ为引发剂的ＳＢＳ－ＣＲ－ＭＭＡ－ＢＭＡ四元接枝鞋用胶粘剂的合成方法,讨论了ＢＰＯ加入量,ＳＢＳ,ＭＭＡ与ＢＭＡ含量,反应时间,温度等对接枝聚合物性能的影响。所得产品用于皮革－ＳＢＳ粘接,强度高,工艺性好。     

焦油一次汽化温度计算方法的探讨

利用相平衡原理得出的焦油蒸馏时一次汽化温度的计算方法,其结果与按经验公式的计算结果进行了比较,同时讨论了一次汽化温度与焦油馏分产率及二段蒸发器过热蒸汽用量的关系。     

Techniques for screening adhesives for structural applications

—Due to its chemistry, no structural adhesive system (epoxies, acrylics, etc.) is likely to offer an ideal combination of toughness, strength, moisture resistance, and ambient-temperature curing. Therefore, for effective use of adhesives in primary structures, an engineer must be able to identify adhesives that represent an optimum compromise among the different properties. In this paper, we present techniques for screening high-strength, ambient-temperature-curing adhesives for (1) moisture resistance under sustained loading and (2) fracture resistance in a way that is directly related to joint performance.     

Efficacy for Whitlockite for Augmenting Spinal Fusion

Whitlockite (WH) is the second most abundant inorganic component of human bone, accounting for approximately 25% of bone tissue. This study investigated the role of WH in bone remodeling and formation in a mouse spinal fusion model. Specifically, morphology and composition analysis, tests of porosity and surface area, thermogravimetric analysis, an ion-release test, and a cell viability test were conducted to analyze the properties of bone substitutes. The MagOss group received WH, Group A received 100% beta-tricalcium phosphate (β-TCP), Group B received 100% hydroxyapatite (HAp), Group C received 30% HAp/70% β-TCP, and Group D received 60% HAp/40% β-TCP (n = 10 each). All mice were sacrificed 6 weeks after implantation, and micro-CT, hematoxylin and eosin (HE) staining, and Masson trichome (MT) staining and immunohistochemistry were performed. The MagOss group showed more homogeneous and smaller grains, and nanopores (<500 nm) were found in only the MagOss group. On micro-CT, the MagOss group showed larger fusion mass and better graft incorporation into the decorticate mouse spine than other groups. In the in vivo experiment with HE staining, the MagOss group showed the highest new bone area (mean: decortication group, 9.50%; A, 15.08%; B, 15.70%; C, 14.76%; D, 14.70%; MagOss, 22.69%; p < 0.0001). In MT staining, the MagOss group demonstrated the highest new bone area (mean: decortication group, 15.62%; A, 21.41%; B, 22.86%; C, 23.07%; D, 22.47%; MagOss, 26.29%; p < 0.0001). In an immunohistochemical analysis for osteocalcin, osteopontin, and CD31, the MagOss group showed a higher positive area than other groups. WH showed comparable bone conductivity to HAp and β-TCP and increased new bone formation. WH is likely to be used as an improved bone substitute with better bone conductivity than HAp and β-TCP.     

Demand Increases for New Fungicides for Rice

<正> After June this year China's regions growingmiddle and late rice had widespread blastand sheath/culm blight.Such diseasesplagued 19.2 million hectares.Starting fromJuly the market for new fungicides that cancontrol blast and sheath/culm blight for ricewas more and more active.Makers of traditional pesticides for thecontrol of blast have to contend with fiercecompetition from new pesticides in marketthis year.Kitazine,iprobenfos,isoprothiolane and tricyclazole,oftenused by farmers in the past,are graduallybeing replaced by new varieties with high