聚酰亚胺纤维增强环氧树脂结构透波复合材料的性能研究及机制分析
李亚锋，张杜鹃，邱 杨，鹿海军
（1.中国航空制造技术研究院复合材料技术中心，北京 101300；2.中国航发北京航空材料研究院先进复合材料重点实验室，北京 100095）
【摘 要】选择聚酰亚胺纤维和环氧树脂，采用热熔法制备出了聚酰亚胺/环氧结构透波复合材料。通过傅里叶变换红外光谱、吸湿率、力学性能、介电性能、湿热老化性能以及扫描电子显微镜等表征手段，研究了聚酰亚胺/环氧结构透波复合材料的结构透波性能和耐湿热环境性能。研究结果表明：聚酰亚胺纤维中刚性共轭结构赋予了聚酰胺纤维复合材料良好的透波性能和耐湿热性能，但是与石英纤维增强环氧树脂复合材料相比，聚酰亚胺纤维增强环氧树脂结构透波复合材料仍存在着压缩强度、弯曲强度与层间剪切强度低、吸湿率高的问题；力学性能破坏模式分析结果显示，聚酰亚胺纤维同时存在有机纤维的吸湿、压缩强度低、纤维/树脂界面结合差的问题。
【关键词】聚酰亚胺纤维；环氧树脂；透波复合材料；力学性能；介电性能；耐湿热性能
电子胶粘剂界面弱化的机理探讨及影响因素分析
金志利，王 琳，徐焕翔，王子涵，唐雁煌
（工业和信息化部电子第五研究所，广东 广州 511370）
【摘 要】对粘接理论和界面处的微观作用力进行了讨论，并对影响电子胶粘剂界面粘接强度的关键因素进行了探讨。本文研究认为，吸附理论、互锁理论和扩散理论描述的微观作用力对电子胶粘剂的粘接具有重要贡献，而静电理论和吸盘理论描述的微观作用力可以忽略不计；界面化学组成、润湿程度、界面污染、界面形貌、温度和中间相厚度会显著影响界面粘接力。最后从上述关键因素出发，结合相关工程经验，对电子胶粘剂的界面弱化机理进行了梳理。
低模量硅烷改性聚醚树脂的制备及密封胶性能研究
任 杰1,2，瞿 芮3
[1.三棵树（上海）新材料研究有限公司，上海 201100；2.三棵树涂料股份有限公司，福建莆田 351100；3.上海市塑料研究所有限公司, 上海 201702]
【摘 要】以聚丙二醇(PPG)、N,N'-羰基二咪唑(CDI)及N-苯基-3-氨基丙基三甲氧基硅烷为原料，合成了硅烷改性聚醚聚合物。研究了反应温度、投料比等条件对聚醚扩链反应效果的影响，并筛选出较优的反应条件。研究结果表明：在90 ℃反应温度下，当n(CDI)∶n(PPG)=1.4∶1时，聚醚与CDI扩链反应效果较好，所制得的硅烷改性聚醚树脂的性能优异。采用自制树脂制得的MS密封胶具有广泛的基材粘接性，力学性能出众，同时拥有较低的拉伸模量及优秀的断裂伸长率，在低模量装配式建筑、家装防水等行业显示出巨大应用前景。
【关键词】硅烷改性聚醚树脂；MS密封胶；N,N'-羰基二咪唑；低模量
高黏附力改性聚硫密封剂与防腐涂料的相容性研究与分析
代晓瑛，王 波，杨小民
（中航西安飞机工业集团股份有限公司，陕西，西安 710089）
【摘 要】研究了高黏附力改性聚硫密封剂（HM116C8）的物理化学性能、工艺性能和力学性能等。同时参照飞机整体油箱材料配套相容性能中的试验设计，研究了HM116C8密封剂与防腐涂料（BFJ-1650）的配套相容性。研究结果表明：HM116C8密封剂具有良好的物理性能、工艺性能、耐低温、耐腐蚀、耐液体和可修复性，与各类材料具有良好的粘接性能。阳极化铝合金+BFJ-1650防腐涂料+NJD-3底涂剂+HM116C8密封剂组成的整体油箱密封体系，各材料之间的配套相容性较好，能满足密封体系各层间黏附性要求。
车载激光雷达用有机硅RTV密封胶的化学负荷兼容性研究
刘则轩，王 兵，徐 珊，林志强
（广州回天新材料有限公司，广东广州 510800）
【摘 要】激光雷达所处车载环境会接触大量油脂类溶剂，故将有机硅RTV密封胶与该环境下的常见溶剂进行兼容性试验，研究了不同配方体系在浸泡老化后各项性能的耐受度。研究结果表明：由于交联密度普遍低于聚氨酯、环氧等，有机硅RTV密封胶应做特殊配方设计，以减轻油脂对体系的溶胀效应；同时应参考ISO 16750-5—2018标准中的规定，在不同溶剂、不同温度下，进行不同程度的浸泡以评估其老化状况。耐油型有机硅RTV密封胶的填料体系应尽量选择CaCO3等低吸油值或改性为憎油型的体系，以减缓油分子渗入，并谨慎采用气相白炭黑填料。在不考虑硫化后释放出的丁酮肟气味、对金属铜的腐蚀或溶胀聚碳酸酯（PC）等风险的条件下，应优先选择高交联密度的脱肟型配方设计。
【关键词】车载激光雷达；有机硅RTV密封胶；填料；交联密度；耐油性
改性纳米TiO2/水性丙烯酸酯耐老化涂料的制备及性能研究
刘传奇1，沈建强1，高袆梁1，张 鑫2，裴克梅2
（1.浙江天女集团制漆有限公司，浙江嘉兴 314505；2.浙江理工大学化学系，浙江杭州 310018）
【摘 要】利用自制具有强烈紫外吸收的改性纳米TiO2粒子，对水性羟丙二级分散体进行共混改性，搭配氨基树脂制成高温烘烤涂料。研究了改性纳米TiO2粒子对涂层性能尤其是耐老化行为的影响规律。研究结果表明：二氧化硅包膜改性的纳米TiO2粒子能有效提高材料的紫外吸收性能；当改性纳米TiO2粒子在涂料中占比为0.4%时，涂层具有优异的硬度、附着力、柔韧性等机械性能；改性纳米TiO2粒子可明显提高涂层耐老化性能。
【关键词】纳米TiO2；改性；羟丙二级分散体；耐老化
全水发泡聚氨酯保温材料的制备及其在混凝土坝的防护应用研究
杨 晨1，罗建华1，任银霞2，孙永奇2
[1.新疆额尔齐斯河投资开发（集团）有限公司，新疆乌鲁木齐 830000；2.新疆科能新材料技术股份有限公司，新疆乌鲁木齐 830022]
【摘 要】采用“永久性防渗涂层、全水发泡聚氨酯硬泡保温材料（分缝）、增强型抗裂砂浆找平层和单组分聚脲防水涂料”的防护结构，对新疆高寒地区某上游混凝土面板进行保温保湿抗冻害防护。研究结果表明：通过组合聚醚、复合催化剂、用水量和施工温度的控制，可实现全水发泡聚氨酯保温材料现场喷涂，且材料尺寸稳定性好，抗压强度高。通过采用“逐层渐变柔性释放”及“分块防护、内应力释放”的施工工艺，可有效防止保温层开裂、脱落，确保对混凝土大坝的防护效果。
【关键词】全水发泡；硬质聚氨酯泡沫；高寒地区；水工混凝土；保温保湿；喷涂；环保
国产水性胶和聚氨酯胶粘剂对地板布的粘接性能测试
孙玉英1，张家鑫2，耿树江2
（1.中车唐山机车车辆有限公司，河北唐山 064000；2.东北大学冶金学院，辽宁沈阳 110819）
【摘 要】探究以两种国产水性胶（I型和II型）以及一种双组分聚氨酯胶作为粘接剂，将地板布粘接到不同材质的地板上，即铝合金和木质地板，测试粘接剥离强度，对比分析了在不同地板基材上的粘接破坏形式。研究结果表明：I型胶粘剂在铝合金和木地板上的剥离强度分别为1.182和1.731 N/mm，不但具有一定的粘接强度，还能满足动车组地板布拆除的要求，且适用于动车组导槽处地板布的粘接。而水性II型胶在铝合金和木地板基材上的剥离强度值分别为0.355和1.172 N/mm，不适合作为动车地板布粘接胶。国产双组分聚氨酯胶在铝合金、木地板基材上的剥离强度分别为3.089和2.698 N/mm，均有较高的粘接强度，适合用作城轨车地板布胶粘剂。
【关键词】水性胶粘剂；双组分聚氨酯胶粘剂；地板布；粘接性能
皮克林(Pickering)乳液聚合及其在胶粘剂等领域的应用
孙冠卿，许佳男，刘 仁
（江南大学化学与材料工程学院，合成与胶体教育部重点实验室，江苏 无锡 214122）
【摘 要】皮克林乳液聚合不需要或者仅需少量表面活性剂，可以制备高性能的水性聚合物分散体系，能够解决表面活性剂的迁移、吸水等因素对水性胶乳体系胶粘剂、涂料等应用带来的问题，对于开发高性能的水性胶粘剂具有重要价值。本文系统介绍了皮克林乳液聚合的理论基础、聚合机制及其在胶粘剂和涂料等领域的应用。
【关键词】乳液聚合；皮克林乳液聚合；纳米粒子；胶粘剂；涂料
核壳结构聚合物/金属复合微球的合成及应用研究进展
冯晓彤，邓才双，廖健聪，江一明，胡 杨
[新辉（中国）新材料有限公司，广东省精细高分子（新辉）工程技术研究中心，广东 江门 529157]
【摘 要】核壳结构复合微球的制备可实现粒子性能的设计和优化，尤其是以聚合物微球为核、金属层为壳的半有机半无机结构球形材料，成为近年来导电微球领域的研究热点。本文综述了磁控溅射法、溶胶凝胶法、原位还原法、层层自组装法和紫外辐照法等核壳结构聚合物/金属复合微球的主要制备方法及各自的优缺点。介绍了该类微球在诸如各向异性导电膜（ACF）、污水处理、吸波材料和表面增强拉曼散射（SERS）等具体领域的应用情况，并对其今后的发展进行了展望。
【关键词】聚合物/金属复合微球；核壳结构；合成；应用；展望
有机硅压敏胶的研究与应用进展
袁 胥，周长伟，王 岩，刘 天
（广州市瑞合新材料科技有限公司，广东 广州 510800）
【摘 要】从有机硅压敏胶的固化机理、原料组成、结构与性能的关系出发，对近年来有机硅压敏胶在耐高温/高湿性、抗静电/导电性等方面的功能性探索，以及高固含率、乳液化、无底涂化、光引发体系、AF防指纹屏用产品的稳定性等应用工艺优化方面的研究/改进思路和改进结果进行了分析和总结，最后对有机硅压敏胶的应用前景和未来关注点方向进行展望。
浅谈国内外建筑材料耐霉菌性检测标准
胡晓珍1,2，顾晨荣1，徐宴华1,2
（1.上海建科检验有限公司，上海 200032；2.国家建筑工程材料质量监督检验中心，上海 201108）
【摘 要】耐霉菌性已经成为各种建筑材料未来发展的一大方向，各种建筑材料的耐霉菌性检测标准也在不断推出、完善。本研究对建筑材料的国内外常用耐霉菌性检测标准进行了概述，并对试样制备方式、测试培养基、测试菌种等进行了比较、分析。通过对国内外耐霉菌性标准的分析，发现对于涂料产品、木竹制品、橡胶制品国内已具备完善的检测标准，但尚无胶粘剂、塑料地板、防水卷材国内检测标准。因此可通过借鉴相应国内外标准，构建具有针对该类产品的检测标准。
Scientific Research Report
Study on properties and mechanism of polyimide fiber reinforced epoxy resin structure wave-transmitting composites
Li Yafeng, Zhang Dujuan, Qiu Yang, Lu Haijun
(1.Composite Technology Center, AVIC Manufacturing Technology Institute, Beijing 101300, China; 2.National Key Laboratory of Science and Technology on Advanced Composites, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China)
【Abstract】Polyimide fiber and epoxy resin were selected, and the polyimide fiber/epoxy structure wave-transmitting composite material was prepared by hot melt method. By the means of Fourier transform infrared spectroscopy, moisture absorption, mechanical properties, dielectric properties, hygrothermal aging properties and scanning electron microscopy, the structural wave-transmitting properties and hygrothermal environment resistance of polyimide/epoxy structure wave-transmitting composites were studied. The research results showed that the rigid conjugate structure in the polyimide fiber gave the polyamide fiber composite with good wave-transmitting properties and hygrothermal resistance. However, compared with the quartz fiber reinforced epoxy resin composite, the polyimide fiber reinforced epoxy resin structure wave-transmitting composite still had the problems of low compression strength, flexural strength and interlaminar shear strength, and high moisture absorption rate. The results of failure mode analysis of mechanical properties showed that polyimide fiber also had the problems of moisture absorption of organic fiber, low compressive strength and poor fiber/resin interface bonding.
【Keywords】polyimide fiber; epoxy resin; wave-transmitting composites; mechanical property; dielectric property; hygrothermal resistance
Mechanism discussion and influencing factor analysis on interface weakening of electronic adhesive
Jin Zhili, Wang Lin, Xu Huanxiang, Wang Zihan,Tang Yanhuang
（The Fifth Electronics Research Institute of Ministry of Industry and Information Technology, Guangzhou 511370, Guangdong, China）
【Abstract】The bonding theory and microscopic forces at the interface were discussed, and the key factors affecting the interfacial bonding strength of electronic adhesive were discussed as well. The research in this paper showed that the microscopic forces described by adsorption theory, interlocking theory and diffusion theory had important contributions to the bonding of electronic adhesive, while the microscopic forces described by electrostatic theory and suction theory could be ignored. The interfacial chemical composition, wetting degree, interfacial contamination, interfacial morphology, temperature and mesophase thickness could significantly affect the interfacial bonding force. Finally, based on the above key factors and combined with relevant engineering experience, the interface weakening mechanism of electronic adhesive was reviewed.
【Keywords】electronic adhesive; bonding; interface weakening; mechanism discussion
Preparation of low modulus silane-modified polyether resin and study on sealant properties
Ren Jie1,2, Qu Rui3
[1. Skshu New Materials (Shanghai) Co., Ltd., Shanghai 201100, China; 2. Skshu Paint Co., Ltd., Putian 351100, Fujian China; 3. Shanghai Plastics Research Institute Co., Ltd., Shanghai 201702, China]
【Abstract】Silane-modified polyether polymer was synthesized from polypropylene glycol (PPG), N,N’-carbonyldiimidazole (CDI) and N-phenyl-3-aminopropyltrimethoxysilane as raw materials. The effects of reaction temperature, feed ratio and other conditions on polyether chain extension reaction were studied, and the optimum reaction conditions were selected. The research results showed that at the reaction temperature of 90 ℃, when n(CDI)∶n(PPG)=1.4∶1, the chain extension reaction effect of polyether and CDI was good, and the prepared silane-modified polyether resin had excellent performance. MS sealant prepared by the self-made resin had a wide range of substrate bonding property, excellent mechanical property, low tensile modulus and excellent elongation at break, which showed great application prospects in low modulus prefabricated building, home decoration and waterproof industries.
【Keywords】silane-modified polyether resin; MS sealant; N,N’-carbonyldiimidazole; low modulus
Research and analysis of compatibility between high-adhesion modified polysulfide sealant and anticorrosion coating
Dai Xiaoying, Wang Bo, Yang Xiaomin
(AVIC Xi’an Aircraft Industry Group Co., Ltd., Xi’an 710089, Shaanxi, China)
【Abstract】The physical and chemical properties, process properties and mechanical properties of high-adhesion modified polysulfide sealant (HM116C8) were studied. At the same time, the compatibility of HM116C8 sealant and anticorrosion coating (BFJ-1650) was studied with reference to the experimental design in the compatibility of aircraft integral fuel tank materials. The research results showed that HM116C8 sealant had good physical properties, process properties, low temperature resistance, corrosion resistance, liquid resistance and repairability, and had good adhesion performance with various materials. The integral fuel tank sealing system composed of anodized aluminum alloy+BFJ-1650 anticorrosion coating+NJD-3 primer+HM116C8 sealant had good compatibility among various materials, which could meet the requirements of adhesion between layers of the sealing system.
【Keywords】sealant; anticorrosion coating; bonding property; compatibility
Development and Application
Study on chemical load compatibility of silicone RTV sealant for vehicle LiDAR
Liu Zexuan, Wang Bing, Xu Shan, Lin Zhiqiang
(Guangzhou Huitian New Materials Co., Ltd., Guangzhou 510800, Guangdong, China)
【Abstract】The vehicle environment where the LiDAR is located will be exposed to a large amount of grease solvents. Therefore, the compatibility test of silicone RTV sealant and common solvents in this environment was carried out to study the tolerance of various properties of different formulation systems after immersing and aging. The research results showed that since the crosslinking density was generally lower than that of polyurethane and epoxy, the silicone RTV sealant should be specially formulated to reduce the swelling effect of grease on the system. At the same time, according to the provisions of ISO 16750-5—2018standard, different degrees of immersion in different solvents and different temperatures were carried out to evaluate the aging condition. The filler system of oil-resistant silicone RTV sealant should try to choose a system with low oil absorption value such as CaCO3 or modify to lipophobic system to slow down the infiltration of oil molecules, and fumed silica filler should be cautiously used. Under the condition of not considering the risk of butanone oxime odor released after vulcanization, corrosion to metallic copper, or swelling polycarbonate (PC), the formula design of de-ketoxime formulation with high crosslinking density should be preferentially selected.
【Keywords】LiDAR; silicone RTV sealant; filler; crosslinking density; oil resistance
Preparation and properties of modified nano-TiO2/waterborne acrylate anti-aging coating
Liu Chuanqi1, Shen Jianqiang1, Gao Huiliang1, Zhang Xin2, Pei Kemei2
(1. Zhejiang Tiannv Group Paint Co., Ltd., Jiaxing 314505, Zhejiang, China; 2. Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China）
【Abstract】The self-made modified nano-TiO2 particle with strong ultraviolet absorption was used to blend with and modify the waterborne hydroxyacrylic secondary dispersion, and high-temperature baking coating was then prepared with amino resin. The effects of modified nano-TiO2particle on the coating properties, especially the aging resistance behavior were studied. The research results showed that the nano-TiO2 particle modified by silica film could effectively improve the ultraviolet absorption performance of the material. When the proportion of modified nano-TiO2particle in the coating was 0.4%, the coating had excellent mechanical properties such as hardness, adhesion and flexibility. Modified nano-TiO2particle could significantly improve the aging resistance of the coating.
【Keywords】nano-TiO2; modification; hydroxyacrylic secondary dispersion; aging resistance
Study on preparation of all-water foamed polyurethane insulation material and its application in concrete dam protection
Yang Chen1, Luo Jianhua1, Ren Yinxia2, Sun Yongqi2
(1.Xinjiang Irtysh River Investment and Development (Group) Co., Ltd., Urumqi 830000, Xinjiang, China; 2.Xinjiang Keneng New Material Technology Co., Ltd., Urumqi 830022, Xinjiang,China)
【Abstract】The protective structure of “permanent anti-seepage coating, all-water foamed polyurethane rigid foam insulation material (seam seperation), reinforced anti-cracking mortar leveling layer and one-component polyurea waterproof coating” was used to protect the concrete panel in an upstream alpine region of Xinjiang for heat preservation,moisture retention and anti-freezing protection. The research results showed that by controlling the composite polyether, composite catalyst, water consumption and construction temperature, on-site spraying of all-water foamed polyurethane insulation material could be achieved,and the material had good dimensional stability and high compressive strength. By adopting the construction technology of “layer by layer gradually flexible release” and “block by block protection and internal stress release”, the cracking and falling off of the thermal insulation layer could be effectively prevented, and the protection effect of the concrete dam could be ensured.
【Keywords】all-water foaming; rigid polyurethane foam; alpine region; hydraulic concrete; heat preservation and moisture retention; spraying; environmental protection
Performance testing of domestic waterborne adhesive and polyurethane adhesive for floor cloth bonding
Sun Yuying1,Zhang Jiaxin2, Geng Shujiang2
(1.CRRC Tangshan Co., Ltd., Tangshan 064000, Hebei, China; 2.School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China)
【Abstract】The domestic two kinds of waterborne adhesive (typeI and type II) and one kind of two-component polyurethane adhesive were used as adhesive to bond the floor cloth to the floor of different materials, i.e. aluminum alloy and wood floor. The adhesive peel strength was tested, and the mode of bonding failure on different floor substrates was compared and analyzed.The research results showed that the peel strength of adhesive type I on aluminum alloy and wood floor was 1.182 and 1.731N/mm respectively, which not only had a certain bonding strength, but also could meet the requirements of removing the floor cloth of EMU, and was applicable to the bonding of the floor cloth at conduit ferrule of EMU.However, the peel strength of waterborne adhesive type II on aluminum alloy and wood floor substrate was 0.355 and 1.172 N/mm respectively, and it was not suitable to be used as adhesive for EMU floor cloth.The peel strength of domestic two-component polyurethane adhesive on aluminum alloy and wood floor substrate was 3.089 and 2.698 N/mm respectively, which had high bonding strength and was suitable to be used as adhesive for floor cloth of urban rail vehicles.
【Keywords】waterborne adhesive; two-component polyurethane adhesive; floor cloth; bonding performance
Special Topics and Review
Pickering emulsion polymerization and its application in adhesive related fields
Sun Guanqing, Xu Jianan, Liu Ren
（Key Laboratory of Synthetic and Biological Colloids Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China）
【Abstract】Pickering emulsion polymerization does not need or only needs a small amount of surfactant, and can prepare high-performance waterborne polymer dispersion system, which can solve the problems caused by surfactant migration, water absorption and other factors on the application of waterborne latex system in adhesive and coating, and has important value for developing high-performance waterborne adhesive. In this paper, the theoretical basis, polymerization mechanism of Pickering emulsion polymerization and its application in adhesive and coating fields were systematically introduced.
【Keywords】emulsion polymerization; Pickering emulsion polymerization; nanoparticle; adhesive; coating
Research progress on synthesis and application of core-shell polymer/metal composite microsphere
Feng Xiaotong, Deng Caishuang, Liao Jiancong, Jiang Yiming,Hu Yang
[Lescent (China) Advanced Materials Co., Ltd., The Research Center of Fine Polymer (Lescent) Engineering and Technology of Guangdong Province, Jiangmen 529157, Guangdong, China]
【Abstract】The preparation of core-shell composite microsphere could realize the design and optimization of particle properties, especially the semi-organic and semi-inorganic spherical materials with polymer microsphere as the core and metal layers as the shell, which had become a research hotspot in the field of conductive microsphere in recent years. In this paper, the main preparation methods of core-shell polymer/metal composite microsphere, such as magnetron sputtering method, sol-gel method, in-situ reduction method, layer-by-layer self-assembly method and UV irradiation method were reviewed, and their advantages and disadvantages were summarized as well. The application of such microsphere in specific fields such as anisotropic conductive film (ACF), sewage treatment, wave absorbing material and surface-enhanced Raman scattering (SERS) were introduced, and their future development was also prospected.
【Keywords】polymer/metal composite microsphere; core-shell structure; synthesis; application; prospect
Research and application progress of silicone pressure sensitive adhesive
Yuan Xu, Zhou Changwei, Wang Yan, Liu Tian
(Guangzhou Ruihe New Material Technology Co., Ltd., Guangzhou 510800, Guangdong, China)
【Abstract】Starting from the curing mechanism, raw material composition, structure and properties of silicone pressure sensitive adhesive, the functional exploration of silicone pressure sensitive adhesives in high temperature/high humidity resistance, antistatic/conductive properties as well as the research/improvement ideas and improvement results in application process optimization such as high solid content, emulsion, no primer, photo-initiated system, and the stability of AF anti-fingerprint screen products were analyzed and summarized.Finally, the application prospect and future focus direction of silicone pressure sensitive adhesive were prospected.
【Keywords】silicone pressure sensitive adhesive; silicone rubber; MQ silicone resin; overview
Brief discussion on testing standard for mold resistance of building material at home and abroad
Hu Xiaozhen1,2,Gu Chenrong1,Xu Yanhua1,2
（1.Shanghai Jianke Technical Assessment of Construction Co., Ltd., Shanghai 200032, China；2.National Center for Quality Supervision and Test of Building Engineering Materials, Shanghai 201108, China）
【Abstract】Mold resistance has become a major direction for the future development of various building materials, and the testing standards for mold resistance of various building materials are constantly being introduced and improved. In this study, the commonly used mold resistance testing standards for building materials at home and abroad were summarized, and the sample preparation methods, test culture media and test bacteria were compared and analyzed. Through the analysis of the domestic and foreign mold resistance testing standards, it was found that there were complete domestic testing standards for coating products, wood and bamboo products and rubber products, but there were no domestic testing standards for adhesive, plastic floor, and waterproofing membrane. Therefore, the testing standards for these products could be developed by referring to the corresponding domestic and foreign standards.
【Keywords】building material; mold resistance; testing standard
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