几种玻纤增强尼龙的抗辐射性能研究

研究了玻纤增强尼龙６、尼龙６６和尼龙６１０力学性能与辐照工艺条件的关系。结果表明：几种玻纤增强尼龙的拉伸强度σｓ受辐照剂量Ｒ的影响较小．Ｒ＜０．５Ｍｙ时，玻纤增强尼龙６６和尼龙６１０的冲击强度。随辐Ｒ的增加而降低；Ｒ＞０．５ＭＧｙ时，σｉ基本不受Ｒ的影响．玻纤增强尼龙６的冲击强度σｉ随Ｒ的增加而逐渐下降（Ｒ＝０～２ＭＧｙ）．空气对几种玻纤增强尼龙的抗辐射性能也有一定影响。     

医用导管用交联尼龙弹性体

美国Ｆｏｓｔｅｒ公司最近推出以交联尼龙 1 2弹性体为基料的医用导管用新型掺混料 ,系列产品名为Ｆｏｓｔａｌｉｎｋ ,Ｆｏｓｔａｌｉｎｋ是用电子束或γ -射线辐照交联尼龙 1 2 ,使材料具有较好的破裂强度和耐热性 ,现代供应的标准牌号有不填充的和含有30 %不透明填料的产品 ,填料为硫酸钡或碳式碳酸铋。Ｆｏｓｔａｌｉｎｋ可作为Ｘ -射线仪器用导管 ,还可作医用套筒和管头 ,未来潜在应用包括非医用热收缩管和电线、电缆专用绝热层 ,产品可以为透明的 ,也可以为有色的 ,加工成型规模可以很小 ,Ｆｏｓｔｅｒ公司在两个地点有装置生产这种尼…     

电子束辐照对尼龙性能的影响

综述了电子束辐照对尼龙的化学结构、热学性能、力学性能及吸水性和耐磨性的影响。     

炭纤维增强聚己二酰己二胺力学性能的研究

介绍了炭纤维增强聚己二酰己二胺（ＣＦＲＰＡ６６）的力学性能,研究了炭纤维的长度分布对复合材料力学性能的影响,用ＭＭ２００磨损试验机测试了尼龙的磨损性能。试验结果表明,炭纤维增强尼龙６６及聚癸二酰己二胺（ＣＦＲＰＡ６１０）的力学性质显著提高,其中ＣＦＲＰＡ６６的力学性能提高更为显著;合适的螺杆组合可以使炭纤维在树脂中的长纤维比例增大,增强效果较好;ＣＦＲＰＡ６６的耐磨性提高,摩擦系数下降     

短切玻纤增强石油发酵尼龙的研制

本文介绍了玻纤增强石油发酵尼龙的制备工艺和方法，考察了玻纤含量，不同玻纤表面处理剂等地所制材料力学性能和热胀性能（线胀系数）的影响，结果表明，玻纤处理剂以Ａ１１００为最好；随玻纤含量的增加（１０－３０％），ＧＲＰＦ尼龙的拉伸强度和拉伸弹性模量相应提高，冲击强度和断裂伸长率有所下降，在玻纤含量为１０－３０％的范围内，冲击强度的变化幅度较小，通过用ＧＲＰＦ尼龙制作轴承保持器的应用试验表明，该材料的综合     

电子束辐照对聚碳硅烷纤维结构行为的影响

国防科大的楚增勇等用电子束对聚碳硅烷（ＰＣＳ）纤维进行辐照实验，研究了结构性能的变化。结果表明，ＰＣＳ纤维受电子束辐照后产生了交联结构，实现了不熔化。电子束辐照对聚碳硅烷纤维结构行为的影响     

WEL—TEN610CF钢制1500m~3球罐设计

介绍ＷＥＬ—ＴＥＮ６１０ＣＦ钢制液化石油气球罐选用钢材，设计、制造要求，无损检测，耐压试验等。指出采用中国的设计和制造规范，用进口的ＷＥＬ—ＴＥＮ６１０ＣＦ钢板设计和制造大型球罐是完全可行的     

电子束辐射对PCS纤维结构性能的影响

用电子束对聚碳硅烷（ＰＣＳ）纤维进行辐照实验，研究了结构性能的变化，结果表明，ＰＣＳ纤维受电子束辐照后产生了交联结构，实现了不熔化。     

INFLUENCE OF EB IRRADIATION ON THE STRUCTURAL BEHAVIOUR OF PCS FIBERS

用电子束对聚碳硅烷（ＰＣＳ）纤维进行辐照实验，研究了结构性能的变化。结果表明，ＰＣＳ纤维受电子束辐照后产生了交联结构，实现了不熔化。     

r射线辐照对PTFE熔融与结晶行为的影响

实验研究了在“Ｏｒ－射线作用下（最大剂量５．２ｘ１Ｇｙ）．聚四氟乙烯（ＰＴＦＥ）其熔融、结晶行为发生的变化。ＤＳＣ测定表明，辐照后的ＰＴＦＥ熔程缩短，辐照后试样较未辐照ＰＴＦＥ熔点明显降低，且随剂量增加而逐渐减小；结晶热焓辐照后明显增加。     

Blends of biorenewable polyamide-11 and polyamide-6,10

Biorenewable polyamide-11 (PA11) is blended with partially biorenewable polyamide-6,10 (PA610) to produce thermoplastics of varying renewable carbon content. DSC thermograms show melting point depression for the PA610 crystals with increasing PA11 composition thus indicating that the two polyamides are fully miscible in the melt; the blends exhibit crystallization induced phase separation. Wide angle x-ray scattering measurements show that crystals of pure PA11 and pure PA610 form in all blends upon cooling. Small angle X-ray scattering shows an increase in lamellar long spacing with increasing PA11 content. Mechanical and thermal properties of these blends are characterized by differential scanning calorimetry, thermogravimetric analysis, dynamic mechanical thermal analysis, tensile testing, and impact testing. Mechanical properties of the blends show intermediate values compared to the homopolymers but with a positive deviation from a simple law of mixtures; significant improvements in the properties of PA11 with the incorporation of 25wt% PA610 are observed. The present study provides extensive data on the physicochemical properties of a promising biorenewable blend system which exhibits the novel feature of thermodynamic miscibility.     

玻纤增强PA66／PP合金的特性及应用

介绍玻纤增强ＰＡ６６／ＰＰ合金的制备工艺及特性，与纯尼龙６６树脂相比，加工性能好，综合性能优异。该材料适用于中小型油浸式变压器的分接开关及其它绝缘部件。     

PA610/PC合金的制备及其力学性能研究

分别选用环氧树脂(EP)及(乙烯/马来酸酐/甲基丙烯酸缩水甘油酯)三元共聚物(EMG)为增容剂,采用熔融挤出法制备了PA610/PC/EP合金和PA610/PC/EMG合金,并研究了这两种合金的力学性能。结果表明,在保持合金其它力学性能基本不变的情况下,当PA610/PC/EP的质量比为75/25/2时,合金的缺口冲击强度比未加入EP时提高了83.7%,比纯PA610提高了84.1%;而且在PA610/PC(75/25)体系中加入EMG增容时,合金的缺口冲击强度也随其含量的增加而明显提高;在加入9份EMC的PA610/PC/EMG体系中再加入2份EP协同增容时,合金的缺口冲击强度比未增容时提高了142.0%。     

SEBS-g-MAH和EP复合增容PA610/PC合金的研究

选用SEBS-g-MAH和EP为复合增容剂,采用熔融挤出的方法制备了PA610/PC合金,研究了该合金的力学性能、熔融结晶及微观结构形态。结果表明,当PA610/SEBS-g-MAH(EP)/PC组分比为75/9(2)/25时,合金的冲击强度比不加增容剂时提高了281.4%,断裂伸长率提高了346.0%。而增容剂的加入使合金中PA610的结晶温度升高,结晶速率增大而结晶度降低,由于异相成核作用使结晶发生细化,使得韧性提高、熔点降低。微观结构形态研究表明,在只加入SEBS-g-MAH的PA610/PC合金中,合金断面有很多PC被拔出及余留空洞的现象;在加入EP协同增容后,PC被拔出的现象减少,与PA610基体的界面粘合增强,空洞消失。     

Characterization and Properties of Reactive Poly(lactic acid)/Polyamide 610 Biomass Blends

A low molecular weight bisphenol‐A type epoxy resin was used as a reactive compatibilizer for poly(lactic acid) (PLA)/polyamide 610 (PA 610) biomass blends. To the best of our knowledge, this blend is the first biomass PA 610 blend in the literature. The epoxy functional groups could react with the terminal groups of both PLA and PA 610. An ester–amide interchange reaction led to a polyester–polyamide copolymer formation, and improved the compatibility of PLA and PA 610. The blends with epoxy resin showed an enhancement in the phase dispersion and interfacial adhesion compared with the blend without epoxy resin. The differential scanning calorimetry (DSC) analysis showed that the crystallization peak temperatures decreased with increasing epoxy content. The melting temperature of PA 610 decreased with the addition of PLA, but remained unchanged with increased compatibilizer dosages. The dynamic mechanical analysis (DMA) showed that the glass transition temperature (T_g) of the blend, with the addition of 0.5 phr epoxy resin, slightly increased compared with that of neat PLA. However, the T_g of the blends remained unchanged with increasing epoxy resin content, and the higher content of epoxy resin in the blends resulted in improved mechanical properties and higher melt viscosity. The unnotched impact test showed that PA 610 could toughen PLA with the addition of epoxy resin. Moreover, the no‐break unnotched impact behavior was observed with the medium content of the compatibilizer, improving the notch sensitivity of PLA. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2563–2571, 2013     

PBT/PA610共混合金的制备及其力学性能的研究

选用环氧树脂(EP)、(苯乙烯/乙烯-丁烯/苯乙烯)三嵌段共聚物接枝马来酸酐(SEBS-g-MAH)和(乙烯/马来酸酐/甲基丙烯酸缩水甘油酯)三元共聚物(EMG)为增容剂,采用熔融挤出的方法制备了PBT/PA610/EP、PBT/PA610/EP/SEBS、PBT/PA610/EP/EMG3种合金,研究了这3种合金的力学性能。结果表明,当PBT/PA610/EP的质量比为70/30/3时,合金的冲击强度比不加EP时提高了37.3%,比纯PBT提高了91.2%;而且在PBT/PA610/EP的质量比为70/30/3时,随着SEBS-g-MAH和EMG含量的增加,合金的冲击强度也明显提高。     

Properties of polyamide 6,10/poly(vinyl alcohol) blends and impact on oxygen barrier performance

The oxygen transmission rate, average volume of free‐volume cavities (V_f) and fractional free volume (F_v) of polyamide 6,10 (PA610)/poly(vinyl alcohol) (PVA) (i.e. PA610_xPVA⁰⁵_y, PA610_xPVA⁰⁸_y and PA610_xPVA¹⁴_y) blend films reduced to minimum values when their PVA contents reached corresponding optimal values. Oxygen transmission rate, V_f and F_v values obtained for optimal PA610_xPVA^z_y blown films were reduced considerably with decreasing PVA degrees of polymerization. The oxygen transmission rate of the optimal bio‐based PA610₈₀PVA⁰⁵₂₀ blown film was only 2.4 cm³ (m²·day·atm)^?1, which is about the same as that of the most often used high‐barrier polymer, ethylene–vinyl alcohol copolymer. Experimental findings from dynamic mechanical analysis, differential scanning calorimetry, wide‐angle X‐ray diffraction and Fourier transform infrared spectroscopy of the PA610_xPVA^z_y blends indicate that PA610 and PVA in the blends are miscible to some extent at the molecular level when the PVA contents are less than or equal to the corresponding optimal values. The considerably enhanced oxygen barrier properties of the PA610_xPVA^z_y blend films with optimized compositions are attributed to the significantly reduced local free‐volume characteristics. © 2017 Society of Chemical Industry     

Preparation and characterization of nylon610/functionalized multiwalled carbon nanotubes composites

Nylon610 nanocomposites containing functionalized multiwalled carbon nanotubes (MWCNTs) were prepared using wet melt blending method, which is a novel preparation technique. In comparison with the pure nylon610, the elastic modulus, tensile strength, bending modulus, and bending strength of the composites increase significantly with the increase of MWCNTs content, and the mechanical properties of the composites are also improved significantly by adding a small amount of MWCNTs (0.1 wt %). The crystallization peak of the composites shifts to higher temperature with the addition of MWCNTs, and among the two melting peaks, the intensity of melting peak at low temperature decreases with increasing MWCNTs content. The composites are more stable than pure PA610 and decompose at higher temperature, suggesting that the accession of MWCNTs can improve the composites' thermal stability. The storage modulus of the composites decreases with the temperature increasing, but under lower temperature it increases significantly with the addition of MWCNTs–COOH except for PANT‐0.1 sample. Transmission electron microscope (TEM) images of composites exhibit that the wet melt blending technique can avoid the excess agglomeration of MWCNTs under vacuum dryness, which benefits MWCNTs to disperse uniformly in matrix. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

阻燃尼龙制品的表面着色

介绍阻燃尼龙制品表面着色的机理及其应用。以白色阻燃尼龙(尼龙1010,尼龙66,尼龙610)为原材料,通过注射成型加工制成塑料制品,根据塑料制品的不同颜色要求,在弱酸性(或中性)的染浴中,将塑料制品按一定的染色配方和工艺流程进行表面着色,获得所需颜色的塑料制品。塑料制品表面着色工艺的成功开发和应用既提高了生产效率,又大大降低了产品成本。     

Polyamide-based composite membranes: Part 2. Interaction, crystallization and morphology

In this work, the interaction, crystallization and morphology of membranes derived from polyamides/poly (vinylalcohol) (PA/PVA, PA: PA66, PA69, PA610 and PA612) blend materials are studied at various weight fractions and various crystallization temperatures. The experimental work includes differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), polarized optical microscopy (POM) and scanning clectron microscopy (SEM). The equilibrium melting temperatures of polyamides in the blends are obtained using Hoffman-Weeks plots, and the interaction parameters are calculated using the Nishi-Wang equation, which is based on the Flory-Huggins theory. The values of the Flory-Huggins interaction parameters χ₁₂ are negative. Significant upward shifts of ν_NH are observed with increasing volume fraction of PVA. The morphology of membranes is impressively complex, diverse, and irregular. All compositions that show nodular morphology are in the μm-scale and the size of the nodules increases with increasing PA6 content. Large void cavities are observed in the substructure for the lower polymer concentrations.