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1.
杨山 《广东化工》2002,29(2):5-7
本文分析了我国聚苯乙烯的生产技术,生产情况及市场需求,并提出我国聚苯乙烯生产发展的建议。  相似文献   

2.
国内外聚苯乙烯市场趋势   总被引:3,自引:0,他引:3  
聚苯乙烯(PS)是为数不多的通用塑料之一。一般所讲的PS都是指无定形聚苯乙烯,最常见的有通用聚苯乙烯(GPPS),抗冲级聚苯乙烯(IPS)、高抗冲级聚苯乙烯(HIPS)和可发性聚苯乙烯(EPS)[1]。1国内生产情况1960年我国自行设计建设了第一套...  相似文献   

3.
孙东林 《化工设计》1995,5(2):37-42
本文从三个方面对国内外聚苯乙烯市场进行了分析、预测和展望,并对我国今后发展聚苯乙烯工业提出了建议。  相似文献   

4.
介绍了聚苯乙烯的生产工艺;分析并预测了国内外聚苯乙烯的生产及消费;对我国聚苯乙烯的发展提出了一些建议。  相似文献   

5.
废聚苯乙烯生产胶粘剂   总被引:1,自引:0,他引:1  
废聚苯乙烯生产胶粘剂孙连吉陈景新(沧州市化学实业集团公司沧州市061000)1前言废聚苯乙烯泡沫主要来自包装、防震材料和一次性食品快餐盒。近年来,我国食品行业和电子行业迅速发展,废聚苯乙烯的抛弃量很大,聚苯乙烯在自然界中分解缓慢,已成为污染环境的大敌...  相似文献   

6.
聚苯乙烯可广泛应用于包装容器、电器等诸多领域,常见的电视机、空调、冰箱、电脑等的外壳或其他配件都可以用聚苯乙烯来制造。这使我国聚苯乙烯需求量不断增长,近几年其进口量都占国内消费总量的50%以上,外资及合资企业因此纷纷涌入国内聚苯乙烯行业。据悉.今年在国内的生产厂家也开始上规模、上档次地生产聚苯乙烯.目标是要夺回失去的市场。  相似文献   

7.
连续本体法聚苯乙烯中试装置的开发   总被引:1,自引:1,他引:0  
王梅  刘源  李杨 《合成树脂及塑料》2001,18(4):63-65,71
设计开发了我国第一套5kg/h连续本体法聚苯乙烯中试装置。该装置顺利开车并成功生产出通用级聚苯乙烯和高透明抗聚苯乙烯。  相似文献   

8.
挤塑聚苯乙烯泡沫塑料板是一种绝热性能优异、性价比较高的保温材料,其多项性能指标优于其他建筑保温材料。随着我国建筑防火要求的提高,新型保温材料的涌现,市场竞争愈发激烈,挤塑聚苯乙烯泡沫塑料板的市场份额被侵占压缩。为了保有市场份额,应对新材料的冲击与建筑防火要求的提高,研究机构和企业研制出石墨改性挤塑聚苯乙烯泡沫塑料板。本文基于JC/T 2627—2021《建筑绝热用石墨改性挤塑聚苯乙烯泡沫板(GXPS)》标准制定过程,介绍了石墨改性挤塑聚苯乙烯泡沫塑料板的主要性能指标及应用方向,同时指出了该产品当前仍面临的问题,希望为后续研究及相关标准的制定提供参考。  相似文献   

9.
用废聚苯乙烯塑料制备胶粘剂的综述   总被引:6,自引:1,他引:5  
废聚苯乙烯泡沫塑料在自然界中不能自然降解而正成为严重的社会公害,其综合利用在当今社会越来越受到重视。本文着重分析了聚苯乙烯塑料在我国的消费状况并阐述了利用废旧泡沫塑料研制和开发各种不同用途胶粘剂的进展  相似文献   

10.
本文介绍了国外聚苯乙烯连续本体聚合工艺的进展及其生产成本,对道化学和海湾油公司的工艺进行了重点分析与评价,并结合国内聚苯乙烯的工业现状及存在问题,提出以新型的连续本体聚合工艺发展我国聚苯乙烯的设想。  相似文献   

11.
The classic polymerization technology of polystyrene is a high‐cost and nonfriendly environmental technology. Furthermore, the weight‐average molecular weight of polystyrene is hard to enhance up to 400,000 in the classic polymerization technology. The disadvantages limit the growth rate of polystyrene. The solution for increasing the growth rate of polystyrene lies in new technology. The reactive extrusion process of polystyrene was studied in detail and the whole reactive extrusion process of polystyrene was obtained. By means of controlling the flow rate of styrene and the initiator and the screw rotational speed, samples of polystyrene with different molecular weights were synthesized by the twin‐screw extruder. The properties of synthesized polystyrene with different molecular weights were studied; the mechanic properties of polystyrene will increase with an increase of the weight average molecular weight of polystyrene. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 2130–2135, 2002  相似文献   

12.
废旧发泡聚苯乙烯的利用   总被引:5,自引:0,他引:5  
本文叙述废旧发光聚苯乙烯的几种回收途径,介绍了废旧发泡聚苯乙烯回收用于粘合剂,涂饰剂,密封胶,水泥砖,增塑剂,苯乙烯单体,聚苯乙烯塑料,可发生聚苯乙烯珠粒,建筑除水涂料等的方法。  相似文献   

13.
郎吉清  高景龙 《辽宁化工》2010,39(6):590-592
采用无皂乳液聚合法制备了单分散亚微米级聚苯乙烯微球。考查了偶联剂的种类和用量对聚苯乙烯微球形貌、粒径、粒径分布及溶解性能的影响。结果表明:采用N,N-亚甲基双丙烯酰胺为偶联剂制备的聚苯乙烯微球为亚微米级,并且呈现单分散性;增加偶联剂的用量,聚苯乙烯微球的粒径先减小后增大,单分散指数变大。FT-IR谱图表明合成了聚苯乙烯微球。  相似文献   

14.
The effect of dicumyl peroxide on the photo-oxidation of polystyrene film has been studied using light of a wavelength absorbed by the polystyrene—oxygen complex. Energy transfer from the excited polystyrene—oxygen complex to the peroxide present in polystyrene film was considered to be the process of most importance in the initiation of polystyrene long-wave photo-oxidation.  相似文献   

15.
The electrochemical codeposition of polystyrene particles and zinc on a rotating cylinder electrode was investigated. Rheological measurements indicate strong aggregation of the PS particles in the zinc deposition electrolyte. Addition of cetylpyridinium chloride, a cationic surfactant, prevents aggregation and enhances polystyrene codeposition. Other surfactants also increase suspension stability, but diminish polystyrene codeposition, irrespective of their charge. Hence, the surfactant charge does not affect polystyrene codeposition. The variation of polystyrene incorporation with the amount of suspended polystyrene, current density and electrode rotation speed signifies that polystyrene codeposition with zinc is determined by the competition between particle removal forces and particle adhesion forces at the cathode surface. The effect of the surfactants can be related to changes in surface roughness of zinc due to surfactant adsorbed on the electrode. Cetylpyridinium chloride behaves differently from the other surfactants, because it is reduced at the cathode.  相似文献   

16.
The transport kinetics and equilibrium concentrations of n-pentane at high penetrant activities in cast, annealed polystyrene were determined and compared with similar measurements in biaxially-oriented polystyrene. The rate of Case II (relaxation-controlled) sorption in biaxially-oriented polystyrene is three to four times faster than the sorption rate in cast, annealed polystyrene. The Case II sorption process in biaxially-oriented polystyrene is more highly temperature dependent than in cast, annealed film. The higher activation energies coupled with the larger relaxation-controlled sorption rates in biaxially-oriented polystyrene imply the involvement of larger polymer segments in the rate controlling polymer relaxations. The sorption in cast, annealed polystyrene was a position-dependent relaxation controlled transport process; in contrast the sorption in biaxially oriented polystyrene, albeit relaxation-controlled, was not position dependent. The position dependence of the Case II sorption appears to be a consequence of the presence of residual benzene in the film which accelerates the rate-determining relaxations. Desorption measurements at very low penetrant activities were quite similar for both biaxially oriented and cast, annealed polystyrene. The desorption kinetics were Fickian and were only a weak function of polymer orientation at these low activities.  相似文献   

17.
谢小化  孟秀红  施岩  王三  王海彦 《当代化工》2014,(11):2234-2237
采用少皂乳液聚合法成功制备了单分散的聚苯乙烯微球,以微球自组装后的聚苯乙烯胶体晶体为大孔模板,铝溶胶为前驱体填充模板,干燥焙烧除去模板后制备了氧化铝载体。用激光粒度仪、扫描电镜、X射线衍射和氮气吸脱附对聚苯乙烯胶体晶体和氧化铝载体进行了表征。结果表明:少皂乳液聚合法制备的聚苯乙烯微球具有粒径较小(100~350 nm)、单分散性好(0.005)、收率高(约80%)等优点;自组装的胶体晶体呈规则有序排列,微球表面光滑洁净,并以此为模板成功制备了具有三维有序结构的、大孔孔径可调的氧化铝材料。  相似文献   

18.
以交联聚苯乙烯为原料树脂,二苯甲酰酒石酸酐为傅—克酰基化反应的酰化试剂合成手性树脂,通过红外光谱和元素分析对该手性树脂进行了表征,研究了溶剂、催化剂、反应温度、反应时间对该手性修饰树脂增重率的影响。  相似文献   

19.
The quality of interfacial interaction is dictated by the surface chemistry of the carbon fibers and the composition of the matrix. The composition of polystyrene was modified by the addition of maleic anhydride (MAH) grafted polystyrene. The surface properties of the various matrix formulations were characterised by contact angle. Carbon fibers were modified by oxidation in nitric acid. The surface composition of the carbon fibers was characterized. The interaction between modified polystyrene and the carbon fibers was studied by single fiber pull-out tests. The best adhesion behavior was achieved between polystyrene containing grafted MAH and nitric acid oxidation carbon fibers. The addition of MAH-grafted polystyrene to the unmodified polystyrene caused the interfacial shear strength to increase. The apparent interfacial shear strength of this fiber-matrix combination allowed for the utilisation of 100% of the yield tensile strength of polystyrene.  相似文献   

20.
可发性聚苯乙烯泡沫保温板,广泛应用于北方房屋建筑中。但由于聚苯乙烯泡沫具有易燃性,直接使用存在严重的安全隐患,研发阻燃型的聚苯乙烯泡沫显得尤为重要。文章综述了近几年国内专利及其他文献中有关阻燃型可发性聚苯乙烯的研究。  相似文献   

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