水性预交联聚丙烯酸酯涂料印花粘合剂的合成研究

通过预交联技术合成出水性聚丙烯酸酯涂料印花粘合剂.研究了交联单体、功能单体、乳化剂和引发剂对聚合反应的影响.结果表明,交联单体的选择及用量是预交联技术的关键;功能单体对胶乳粒子大小及分布有较大影响;用阴/非离子复配的乳化剂能使聚合体系达到较好的稳定性;引发剂为单体总量的0.6%.     

TYS-50A型砂磨机的设计与开发

介绍了ＴＹＳ－ ５０Ａ 型砂磨机的设计原理及系统构成，并讨论了相关的技术难点     

辣椒橙色素的稳定性研究

通过自然散射光照射对比的方法从天然抗氧化剂中筛选出两种理想的稳定剂——儿茶素和皮素，在２０日使用期内，将色素色价保存率分别提高了５３％和７３％，有效地增强了色素的稳定性。     

Inheritance of the delayed gland morphogenesis trait in Australian wild species ofGossypium

Five Australian wild cotton species with the delayed gland morphogenesis trait, as well as G. arboreum, G. davidsonii and four different gland genotypes of G. hirsutum, Gl₂Gl₂Gl₃Gl₃, Gl₂Gl₂gl₃gl₃, gl₂gl₂Gl₃Gl₃, and gl₂gl₂gl₃gl₃, were used in this experiment and 10 interspecific hybrids were obtained by the crossing among them. According to the gland expression on the seeds and plants of the interspecific hybrids, the inheritance of the delayed gland morphogenesis trait of Australian wild cotton species was opened out as follows: (ⅰ) the inheritance of the delayed gland morphogenesis trait was almost the same among the 5 Australian wild cotton species, and the gene or genes which controlled this trait may be located in the same loci. (ⅱ) The glandless seed trait of the Australian wild cotton species was dominant over the glanded seed trait of G. arboreum, a genome A species, and the seeds of interspecific hybrid F₁ between them were glandless. However, it was recessive over the glanded character of genome D species, G.davidsonii, and their F₁ was a typical glanded one. (ⅲ) The glandless seed trait of the Australian wild cotton species was recessive or incomplete dominant over the glanded cotton but dominant over the glandless cotton of G. hirsutum, and the glandless genes (gl₂gl₂gl₃gl₃) of upland cotton had great weakening effect on the glanded plant trait of the Australian wild cotton species on the other hand. For the two main glanded genes of upland cotton, the delayed gland morphogenesis trait of the Australian wild cotton species was dominant epistatic over glandless genes, gl₂gl₂gl₃gl₃, and one of the glanded genes, Gl₂Gl₂, but was recessive epistatic over the other glanded gene, Gl₃Gl₃. Therefore, it is much convenient to use Gl₂Gl₂gl₃gl₃ as the upland cotton parent in the interspecific hybridization and backcrossing afterward, in order to produce the upland cotton germplasm with glandless seeds and glanded plant trait.     

CuPc薄膜及其厚度对太阳电池性能的影响

酞菁铜是一种重要的有机光电半导体材料,其优异的稳定性和良好的光电性能,越来越受到人们的重视.对真空蒸发法制备的酞菁铜薄膜进行了XRD、Raman光谱、紫外 可见光谱,以研究该薄膜的结构及光学性能,并对肖特基型太阳电池ITO/CuPc/Al进行研究,通过改变CuPc的厚度,讨论其对该太阳电池电学性能的影响.     

补充照光对番茄幼苗生长和结果的影响

研究了补充照光对大棚番茄幼苗生长及其叶片IAA合成、降解酶活性的影响.结果表明,补充照光可使番茄株高明显降低,使其单株干重明显增高,但对其单株鲜重及茎粗无明显影响.补充照光还使番茄叶片叶绿素a,叶绿素b,叶绿素a/叶绿素b比值和叶绿素/类胡萝卜素比值明显降低,但引起类胡萝卜素含量极显著增加.补充照光不仅能使番茄果实提前成熟,还在较大程度上提高了番茄产量.补充照光使番茄幼苗叶片醛氧化酶、过氧化物酶和IAA过氧化物酶活性显著下降,但使IAA氧化酶活性明显增高.     

纳米TiO2包覆磷酸钙生态防锈颜料的合成与性能

首先以工业85%磷酸,Ca(OH)2为基本原料合成磷酸钙中间体。再利用TiOSO4水解产生的TiO2对其包覆改性。经过滤、烘干得到产品。利用XRD、SEM对样品进行了表征。将改性的颜料制成醇酸水性防锈漆,喷涂到钢铁表面测试性能。结果证明,各项指标均达到或超过国家标准,尤其耐盐水一项,不仅优于目前市场上的磷酸锌,而且寿命比德国进口的ZPA防锈颜料要高出120 h。     

发育过程中小麦叶片超弱发光及酶活变化

测定了发育过程中小麦叶片的超弱发光,以及叶片中的色素、蛋白质含量和几种抗氧化酶活性. 结果表明,叶片的超弱发光变化与CAT,POD活性呈显著正相关(P<0.01),与AP活性、蛋白含量变化呈显著负相关(P<0.01).     

光合细菌捕光色素蛋白复合体LH2的结构与功能

概述了近年采光合细菌捕光色素蛋白复合体LH2的结构研究状况,并在此基础上阐述了各组分的功能、特点及相互作用.     

四-(2,4-二甲基-3-戊氧基)酞菁钴(Ⅱ)的合成、表征和性质研究

以2-溴代丙烷、异丁醛、3-硝基邻苯二甲腈、无水二氯化钴为主要初始原料合成了四-(2,4-二甲基-3-戊氧基)酞菁钴(CoPc),并采用元素分析、红外光谱及质谱对目标产物进行表征,同时研究了它的电子吸收光谱和热稳定性.