专利202108

一种充气轮胎宽频噪音抑制构造;一种优化的橡胶老化性能预测方法;一种耐热老化性好且疲劳寿命高的橡胶材料和应用;一种橡胶复合材料及其制备工艺和应用;一种下模移动进行轮胎硫化生产的方法;一种高耐候橡胶涂层及其制备方法;一种抗冲击车用橡胶减震器;一种橡胶轮胎生产用激光标刻装置;一种微发泡聚氨酯橡胶跑道及其制备方法;一种支化丁基橡胶的制备方法;一种导电硅橡胶及其制备方法;一种非接触式的轮胎滚动变形特性测试方法;一种低噪声、高抗湿滑性能轮胎     

专利202101

一种增强改性橡胶及其制备工艺；一种无钢丝和帘子布的一体硫化免充气轮胎；一种耐低温氟橡胶及其制备方法；一种自修复橡胶；一种航空轮胎胎面胶及其制备方法和应用；一种高硫化效率的轮胎硫化胶囊及其硫化方法和硫化获得的轮胎；一种橡胶压延机；可溶性聚氨酯橡胶及其制备方法和应用；一种生物质橡胶防老剂及其制备方法与应用；一种改进型的轮胎加工用原料挤出装置；一种高湿滑性能的冬季轮胎胎面胶及其制备方法；一种改善轮胎凹凸不良的方法；一种制备芳香轮胎用香精、橡胶组合物及其制备方法     

专利202109

一种改性聚异戊二烯橡胶及其制备方法;阶梯式轮胎直压硫化内模具;一种可扫码的自转式轮胎硫化机装胎机械手;一种具有高耐磨性的胎面橡胶组合物及其制备方法;一种行驶状态RFID芯片轮胎的身份识别方法;一种废轮胎热解炭黑降灰固硫的新型设备;一种导热吸波磁性硅橡胶及其制备方法;一种橡胶挤出机的喂料装置;一种端基官能化的合成橡胶及其制备方法与用途;一种低滚动阻力轻量化半钢子午线轮胎;一种用天然橡胶籽壳制备的活性炭及其制备方法和应用;一种轮胎磨耗预测方法     

化工专利

一种燃料油的生产方法；一种地下聚合制备高吸水性树脂的方法；一种固体高铁酸钾制备方法；一种烃油的裂化方法;一种新型乙醇汽油及其制备方法……     

专利202208

一种界面交联橡胶的制备方法及回收方法;一种航空轮胎过缆试验设备及方法;一种轮胎稳态滚动温度测试方法;一种橡胶隔音材料及其制备方法和应用;一种评价橡胶相容性的评价方法、设备和计算机程序产品;一种无卤环保型阻燃橡胶及其制备方法;一种适用轮胎破碎胶粒料仓的进出料设备及方法;一种废弃橡胶循环再利用制备方法;一种在线监测轮胎生命周期状态的方法     

专利202110

一种考虑轮胎纵滑力学特性的汽车纵向速度跟踪控制系统的控制方法;轮胎用钢丝环带卷绕装置;一种电缆用橡胶及制备方法;一种双螺母驱动的轮胎硫化内模具;一种橡胶密封寿命评估方法;一种辐照交联陶瓷化硅橡胶复合带;一种废橡胶加工工艺;一种用于轮胎修须的割刀; 一种橡胶并用型低烧蚀绝热材料及其制备方法;低反包结构的宽体车轮胎;一种改性硅橡胶及其制备方法和应用;一种橡胶密炼机的投料装置     

专利202111

一种利用轮胎热解废渣提升有机废物厌氧消化效率的方法;一种带有云母层的陶瓷化硅橡胶复合带及其制备方法;一种轮胎外轮廓快速提取方法、设备和计算机可读载体介质;一种橡胶轮胎生产用原料加热装置;一种轮胎缺陷检测装置及其使用方法;一种应用于废旧轮胎炭黑造粒方法;新型SUV轮胎花纹;一种冰上止滑橡胶片及其制备方法;一种减振橡胶及其制备方法;一种橡胶密封材料及其制备方法;一种导热绝缘硅橡胶及其制备方法和应用;一种非充气轮胎瞬态冲击特性预测方法     

以责为怀，任重而道远——有感于“责任关怀”

周末赋闲，起了整理书橱的念头。边读边整理的习惯，让光阴在“两扇门，六层阁”的静谧空间里轻轻滑过。在一本书的扉页看到这样一段文字：播下一种思想，收获一种行为；播下一种行为，收获一种习惯：播下一种习惯，收获一种性格：播下一种性格，收获一种命运。没有出处，亦无作者名，只隐约记得是教育心理学里     

专利202207

一种高性能橡胶/氧化石墨烯复合材料及其制备方法;一种航空轮胎的噪声检测装置以及检测方法;一种用于轮胎生产的输送设备;一种基于轮胎压力监测触发的轮胎自密封应急系统;一种多孔易分散的多功能复合橡胶助剂;一种可快速拆卸轮胎的轮组及滑板;一种连续玄武岩纤维复合橡胶输送带及其制备方法;一种加成型阻燃固体硅橡胶及其制备方法     

专利202204

一种用于制备胎面的组合物、胶料及其制备方法、轮胎;一种废旧轮胎回收中产生的废水处理方法及系统;一种自修复轮胎密封胶及其制备方法和自修复轮胎;一种高性能丁基橡胶及其制备方法和应用;一种透明橡胶气密材料及其制备方法和应用;一种橡胶磨耗测试装置;一种低温硫化导电丁腈橡胶及其制备方法;一种橡胶轮胎生产用挤出机     

Particulate reinforcement and formaldehyde adsorption of modified nanocrystalline cellulose in urea-formaldehyde resin adhesive

In this study, nanocrystalline cellulose (NCC) was used for reinforcement and formaldehyde (HCHO) adsorption of urea-formaldehyde (UF) resin adhesive in fiberboard. The original NCC was modified by 3-aminopropyltriethoxysilane for improving the wetting property with UF resin adhesive. The UF resin adhesive with modified NCC was analyzed by X-ray powder diffraction, thermogravimetric analysis, and Fourier transform infrared. The HCHO emission and bending and bonding strength of the UF resin adhesive with modified NCC were tested according to Chinese National Standard GB/T 17657-1999. Compared with the original UF resin adhesive, modified NCC led to limited effects on the crystal structure, thermal stability, and characteristic absorption peaks of UF resin adhesive. The HCHO emission of the UF resin adhesive with 1.0% modified NCC decreased by 13.0%, while the bending and bonding strength increased by 40.5 and 158.3%, respectively. The improvements of modified UF resin adhesive were destroyed by the reunion of NCC when the content was more than 1.5%.     

皮胶蛋白增量剂对脲醛树脂胶合性能的影响

研究了化学改性皮胶加入脲5醛（UF）树脂对胶合性能的影响,旨在提高普通脲醛树脂应用性能。讨论了pH值、黏度、固化时间、耐水性、拉伸剪切强度等胶黏剂指标。结果表明：改性剂的加入使得改性合成的脲醛树脂在耐水性、胶合强度等方面优于未改性的脲醛树脂。改性皮胶的含量为3％时,改性脲醛树脂胶黏剂的主要的技术性能和指标均已达到国家标准。确定了改性皮胶做为增量剂的加入会使脲醛树脂本身的耐水性能和胶合强度均有提高。     

Hydrolytic and thermal stability of urea-formaldehyde resins based on tannin and betaine bio-fillers

In this work, betaine (trimethyl glycine) and tannin (complex biomolecules of polyphenolic nature) were used as bio-fillers. Urea-formaldehyde (UF) resin with a molar ratio of formaldehyde versus urea (FA/U) of 0.8 was synthesized in situ with tannin and betaine as bio-fillers, to obtain UF resin with reduced free FA content and increased hydrolytic and thermal stability by the principles of sustainability. The samples TUF (with tannin) and BUF (with betaine) were characterized by using X-ray diffraction analysis (XRD), non-isothermal thermogravimetric analysis (TGA), and differential thermal analysis (DTA), supported by data from Fourier Transform Infrared spectroscopy (FTIR) and Scanning electron microscopy (SEM). The percentage of free FA in modified BUF resin is 0.1%, while the percentage of free FA in tannin-modified resin is 0.8%. The hydrolytic stability of the modified UF resins was determined by measuring the concentration of liberated FA in the modified UF resins, after acid hydrolysis. The modified BUF resin is hydrolytically more stable because the content of released FA is 3.6% compared to the modified TUF resin, where it was 7.4%. Based on the value for T_5%, the more thermally stable resin is the modified TUF resin (T_5% = 123.1°C), while the value of the T_5% for the BUF resin is 83.1°C. This work showed how UF bio-composite with reduced free FA content and increased hydrolytic and thermal stability can be obtained using tannin and betaine as bio-fillers.     

木质纤维素微纤丝改性UF树脂的性能研究

将木质纤维素微纤丝（MFC）加入UF树脂,考察其热性能与力学性能的变化。DSC研究结果显示随着MFC含量的增加,UF树脂固化温度逐渐下降;热重分析显示添加MFC可改善UF树脂的热稳定性;DMA实验结果表明添加MFC的UF胶合板储能模量和玻璃化转变温度有所上升;胶合强度测试表明添加MFC的UF胶合板的胶合强度提高了29%。与未改性的UF树脂相比,木质纤维素微纤丝（MFC）的加入降低了固化温度,提高了热稳定性,改善了力学性能。     

改性脲醛树脂新进展

综述了改性脲醛树脂胶粘剂研究的最新成果,报道了为降低产品毒性,提高ＵＦ树脂的粘接强度,耐水性和抗老化性能所采取的措施,阐述了扩大改性ＵＦ树脂应用领域的良好的前景。     

Hydrolytic stability of cured urea‐formaldehyde resins modified by additives

Urea‐formaldehyde (UF) resins are prone to hydrolysis that results in low‐moisture resistance and subsequent formaldehyde emission from UF resin‐bonded wood panels. This study was conducted to investigate hydrolytic stability of modified UF resins as a way of lowering the formaldehyde emission of cured UF resin. Neat UF resins with three different formaldehyde/urea (F/U) mole ratios (1.4, 1.2, and 1.0) were modified, after resin synthesis, by adding four additives such as sodium hydrosulfite, sodium bisulfite, acrylamide, and polymeric 4,4′‐diphenylmethane diisocyanate (pMDI). All additives were added to UF resins with three different F/U mole ratios before curing the resin. The hydrolytic stability of UF resins was determined by measuring the mass loss and liberated formaldehyde concentration of cured and modified UF resins after acid hydrolysis. Modified UF resins of lower F/U mole ratios of 1.0 and 1.2 showed better hydrolytic stability than the one of higher F/U mole ratio of 1.4, except the modified UF resins with pMDI. The hydrolytic stability of modified UF resins by sulfur compounds (sodium bisulfate and sodium hydrosulfite) decreased with an increase in their level. However, both acrylamide and pMDI were much more effective than two sulfur compounds in terms of hydrolytic stability of modified UF resins. These results indicated that modified UF resin of the F/U mole ratio of 1.2 by adding acrylamide was the most effective in improving the hydrolytic stability of UF resin. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

脲醛树脂胶粘剂改性研究进展

综述了脲醛(UF)树脂胶粘剂改性研究进展,重点介绍了UF树脂胶粘剂的改性方法,阐述了UF树脂胶粘剂改性后的良好应用前景。     

有机硅乳液改性脲醛树脂胶粘剂的研究

采用对比实验,考查有机硅乳液加入时间、加入量等因素对脲醛树脂的改性效果,将制成的改性脲醛树脂胶粘荆压制三层杨木胶合板,检测胶合板的甲醛释放量和胶合强度等指标。试验结果表明,改性效果最佳的nP／nU为1.2,当有机硅的加入量为树脂总量的5％,加入方式为树脂合成后期加入,对于提高树脂胶合强度、降低游离甲醛及甲醛释放量效果最佳。     

Improvement of UF/fiberglass mat properties used in roofing shingles through emulsion polymers and nanoclay addition

Modification of urea–formaldehyde (UF) resin binder for making fiberglass mats was aimed as a route to enhance its brittleness and improve its mechanical properties. The UF resin modifiers were chosen among pure acrylate emulsion polymers having different glass transition temperatures (T _g). Blends of 10% w/w based on dry modifiers and UF resin were prepared. The most effective modifier was chosen and 4 wt% of nanoclay was added to the UF resin for improvement of its mechanical properties. Morphologies of the fractured surface of the UF-modified films were investigated by scanning electron microscopy (SEM). Coarser texture of the fractured surface was regarded as an increased toughness of the modified UF resin. Investigation of gel time at 100 °C on various modified urea–formaldehyde resins showed that the gel time of the modified UF resins generally decreases with adding polymeric emulsions. It is decreased further when less film forming latex (higher T _g) is used in UF resin. Less film formation on the other hand, promotes easier water release during UF resin curing. Tensile and tear strength of the fiberglass mat composites have been increased up to 300 and 50%, respectively, while additional increase of 33% in tensile strength was obtained when nanoclay was incorporated into the composites. X-ray diffraction (XRD) analysis and Si-mapping through SEM were employed in order to show the dispersion and the distribution of nanoclay in the composites, respectively. The disappearance of the peak at 2θ = 7.22 confirmed the exfoliation of the employed nanoclay.     

Modification of urea-formaldehyde resin adhesives with blocked isocyanates using sodium bisulfite

Polymeric 4-4 diphenyl methane diisocyanate (pMDI) was blocked with an aqueous sodium bisulfite solution to obtain water-dispersible blocked pMDI (B-pMDI) resin with different HSO₃/–NCO mole ratios for the modification of urea-formaldehyde (UF) resin. Fourier transform infrared (FTIR) spectra of the B-pMDI resin clearly showed that all isocyanate groups of the pMDI resin were successfully blocked by sodium bisulfite. As the HSO₃/–NCO mole ratio increased, the de-blocking temperature of the B-pMDI resin also increased. Two addition levels (1% and 3%) of the B-pMDI resin with different HSO₃/–NCO mole ratios were mixed with UF resins and used as an adhesive for plywood. The gel time of the UF/B-pMDI resins decreased to a minimum at a mole ratio of 0.9 and then increased with the HSO₃/–NCO mole ratio, and was consistent with the peak temperature (Tp). However, as the HSO₃/–NCO mole ratio increased, the viscosity of the modified UF resins by 1% B-pMDI resin addition slightly increased, whereas those of modified resins with 3% B-pMDI resin addition rapidly increased. The adhesion strengths of plywood bonded with the hybrid resins were greater for 1% B-pMDI resin addition than for 3% B-pMDI resin addition. Formaldehyde emission of plywood bonded with the UF/B-pMDI resins significantly decreased up to 34% by the addition of B-pMDI resin at a mole ratio of 1.8. These results suggest that the modification of UF resins by mixing with water-dispersible B-pMDI resin can be a method for improving the water resistance and formaldehyde emission of UF resins for wood-based composites.