PET/MFMB复合材料的力学性能、热性能的研究

用力学性能测定、DSC和熔体流动速率（MFR）测定法研究聚对苯二甲酸乙二酯／多功能母料（PET／MFMB）复合材料的力学性能和热性能。结果表明，当MFMB的含量为22％时，PET／MFMB复合材料的冲击强度、断裂伸长率分别出现极大值；复合材料中PET、PP的熔点比纯PET、纯PP的稍有降低，当PET／MFMB＝78／22时降低的幅度稍大；复合材料的MFR在PET／MFMB＝78／22时出现转变点。     

过磷酸钙折流混合器的改进

由于绿原化工有限公司过磷酸钙装置生产能力由 6 70 t/ d(实物量 )提高到 84 0 t/ d,折流混合器负荷增大 ,出现折流环磨损加快等问题。采用若干技改措施 :扩大折流环内径、改变折流混合器喷射方向、采用新材料制作折流环 ,使折流混合器能满足 84 0 t/ d过磷酸钙生产的需要     

用RAP法引上技术生长KCL晶体

用RAP法(reactivo atmosphere process)处理KCl熔体,在不改变生长气氛和RAP继续处理的情况下,提拉生长KCl晶体,以解决高纯、大尺寸、生长速度快、成品率高和有较大经济效益的问题。     

CO2压缩机强烈振动的频谱诊断与治理对策

通过对安庆石化总厂化肥厂ＣＯ＿２压缩机多起强烈振动信号的频谱分析，找出了谱图上的一些规律性特征，并在理论上加以解释，文章还提出了现场应急处理的对策以及根治办法。     

Synthesis of tertiary poly(amido-amine)s with amido- and amino-groups randomly arranged along the macromolecular chain

A new synthesis of poly(amido-amine)s from bis (secondary amine)s and acryloyl chloride has been studied, leading to polymers in which the amido- and amino-groups are randomly arranged along the macromolecular chain. A poly(amido-amine) based on piperazine, chosen as the mother compound, has been fully characterized by ¹³C n.m.r. as well as by identification and quantitative evaluation of its hydrolysis products.     

新型植物杀菌剂--苯并噻二唑类植物抗病诱导剂

植物抗病诱导剂是近年来发现的一种新型植物杀菌剂，苯并噻二唑类(BTH)就是其中重要的一类。对近年来BTH研究情况作一简要综述。     

茂金属乙烯/苯乙烯假无规共聚物(ESI)的研究进展

乙烯／苯乙烯假无规共聚物（ESI）是一类新型的茂金属聚合物，通常苯乙烯质量分数可达80％，随苯乙烯的质量分数增加，ESI由半晶态的弹性体材料过渡到非晶态的热塑性塑料，笔者综述了近年来国外茂金属乙烯－苯乙烯假无规共聚物（ESI）研究与开发的新进展，重点介绍了ESI的物理性能，合成工艺，共混性能，填充性能，膜塑性能及发泡性能，并论述了ESI的应用现状和发展趋势。     

Binary phase behavior of 1,3-distearoyl-2-oleoyl-sn-glycerol (SOS) and 1,3-distearoyl-2-linoleoyl-sn-glycerol (SLS)

The binary phase behavior of SOS (1,3-distearoyl-2-oleoyl-sn-glycerol) and SLS (1,3-distearoyl-2-linoleoyl-sn-glycerol) was examined by using DSC and conventional and synchrotron radiation X-ray diffraction. The solid-solution phases were observed in the metastable α and γ forms in all concentration ranges. Results indicated that the miscible γ form did not transform to the β′ form when the mixtures were subjected to simple cooling from a high-temperature liquid to a low-temperature solid phase. However, and α-melt-mediated transformation into β′ and β₂ resulted in the formation of immiscible phases in concentration ranges of SLS below 30%. By contrast, at SLS concentration ranges above 30%, the α-melt-mediated transformation caused crystallization of only the γ form, and β′ and β₂ crystals did not appear. These results show that the specific interactions between SOS and SLS are operative in the phase behavior of the mixture states of SOS and SLS.     

国内外邻苯二甲酸酯类增塑剂的现状和展望

对邻苯二甲酸酯类增塑剂的国内外现状作了评述,并对我国提高DOP和高分子量邻苯二甲酸酯类增塑剂的比例、降低DBP的比例、开发高性能的复合增塑剂提出了积极的建议。     

Selective gas transport in miscible PPO-PS blends

The permeation rates of He, CO₂ and CH₄ though miscible blends of polystyrene and poly(phenylene oxide) at 35°C are reported as a function of pressure. Sorption isotherms for CO₂ and CH₄ are also presented. By using ratios of the permeabilities of the pure gases the separation factors for the gas pairs He---CH₄ and CO₂---CH₄ can be estimated. For both pairs the estimated separation factor goes through a prominent maximum, thus indicating that these blends are more permselective than expected from the behaviour of polystyrene and poly(phenylene oxide). This stems from mobility considerations rather than solubility effects and a qualitative free volume argument is proposed as an explanation. The sorption and transport data have been interpreted and correlated using the dual sorption-mobility models developed previously for glassy polymers. Since the commercial polystyrene used contained a small amount of mineral oil to improve flow behaviour, the effect of this additive on polystyrene properties was explored in some detail.