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analysis of the composition of adhesive products

adhesives are organic or inorganic, natural or synthetic substances of the same or two or more homogeneous or heterogeneous parts (or materials) that can be joined together and have sufficient strength after curing, also known as adhesives, binders, customarily referred to as glue.

commonly used adhesives are synthetic adhesives. synthetic adhesives are composed of main agent and auxiliaries, also known as the main material, base material or adhesive; auxiliaries are curing agents, diluents, plasticizers, fillers, coupling agents, initiators, thickeners, antioxidants, inhibitors, stabilizers, complexing agents, emulsifiers, etc., according to the requirements and uses can also include flame retardants, foaming agents, defoamers, colouring agents and mould inhibitors and other components.

according to incomplete statistics, more than 6000 kinds of adhesive products have been introduced so far, because it can realize the connection of the same or different materials, no stress concentration in the joint part, high bonding strength, easy to realize the automation of chemical operation, etc., widely used in various fields in the national economy. at present, the production and sales scale of the adhesive industry continues to grow rapidly, the technical level of adhesives continues to improve, a large number of domestic and foreign advanced level products continue to emerge, adhesives to modified, reactive, multi-functional, nano-type and other directions of development, application areas also to new energy, energy saving and environmental protection and other emerging industries focus.

noa has nearly 30,000 square meters of central laboratory, with organic laboratory, inorganic laboratory, physical and chemical laboratory, thermal analysis laboratory, mechanics laboratory, reliability laboratory, combustion laboratory, weather resistance laboratory. it can provide one-stop analysis and testing services for adhesive products such as raw material quality control, composition analysis, foreign substance analysis, performance testing, environmental performance and reliability testing.

service content

noa can provide composition analysis, formulation analysis, failure analysis, comparative analysis, foreign matter analysis, environmental protection testing and other services through spectroscopy, chromatography, nuclear magnetism and other large precision instruments, using "light, colour, heat, mass, meta-chemical" multi-analysis techniques, to help customers analyse the chemical composition and composition content of samples, or qualitative and quantitative analysis of specified ingredients and content according to customer requirements, identification of raw materials, additives, specific ingredients, content and foreign matter components and other analytical services.

i. service offerings

service offerings	common products
acrylate adhesives	502 adhesive, anaerobic adhesive, ab adhesive, emulsion-type pressure-sensitive adhesive
polyurethane adhesives	sealants, foam adhesives
epoxy resin adhesives	electronic adhesives, sealants, sealants, anti-corrosion adhesives, structural adhesives, anchoring agents
uv adhesives	uv nail glue, uv easy peel glue, uv glass glue

二、服务项目

服务名称	服务定义
成分分析	组成成分定性定量分析
体系鉴定	树脂体系鉴定
对比分析	组成成分定性定量分析成分差异说明性能改进建议
异物分析	异物发现分析方案测试结果异物成分分析结论
失效分析	（断裂、龟裂、析出、脱层）等失效背景调查问卷分析方案测试结果失效分析结论
环保测试	挥发性有机化合物、有害物质限量
指定成分分析	化合物名称及含量测试方法
树脂结构解析	树脂合成单体种类及比例
大型仪器测试	py-gcms、tga、dsc、nmr等谱图测试
原材料质控	原料纯度测试、物料定性分析、指定成分定性定量分析

service process

q&a

what are the main product systems for adhesives?

depending on the resin, adhesives are often divided into polyurethane systems, uv resin systems, epoxy resin systems, acrylic systems, phenolic systems, polyamide resin systems and other systems. polyurethane systems are commonly oil-based polyurethane systems and water-based polyurethane systems, epoxy resin systems are commonly two-component epoxy adhesives and one-component epoxy adhesives, and acrylic systems are commonly reactive acrylic adhesives, water-based acrylic adhesives, solvent-based acrylic adhesives and cyanoacrylic adhesives.

there are many different types of adhesives, how are they differentiated by curing method?

the different ways of curing the adhesive can be divided into melt-curing type, volatile curing type, water-curing type, reaction curing type. melt-curing adhesives are adhesives in a molten state under heat to bond a class of adhesives. volatile-curing adhesives are adhesives in which the water or other solvents evaporate naturally in the air, thus curing the formation of a class of adhesives. water-curing adhesives are chemically reactive and cured when exposed to water. reaction-curing adhesive is a type of adhesive formed by the chemical reaction between the adhesive material and substances other than water to cure the bond.

as the adhesive industry moves towards an environmentally friendly approach, what support can noa provide to companies in this area?

noa can test adhesive products for voc and hazardous substance limits in accordance with national standards to determine whether they meet national environmental standards; at the same time, noa has the ability to analyse research and development to help companies develop new products in the direction of environmental protection such as water-based adhesives.

what is noa solution for quality control of photoresists as a core material for semiconductors?

noa testing laboratory is equipped with a high precision icp-ms capable of testing the content of impurity elements for electronic chemicals such as photoresists, with detection limits up to the 0.01ppb level, to check the quality level of raw materials. it can also measure the number of impurity particles, moisture and other key control elements.

our advantage

authoritative qualification

noa has been approved by certification and accreditation administration of the people’s republic of china（cnca）(cnca-r-2002-051), and has obtained qualification of china inspection body and laboratory mandatory approval (cma),and has passed the multiple approvals of china national accreditation service for conformity assessment (cnas), international accreditation service (ias), united kingdom accreditation service (ukas), joint accreditation system of australia and new zealand (jas-anz). noa has been approved by state administration for market regulation of china, and has been recognized as inspection and testing institution of china's special equipment, as well as the qualification of china's national equipment supervision and engineering supervision. noa-dci is the notified body of the ce directive of the european commission. noa has been recognized by the international electrotechnical commission (iecq) by obtaining electronic component quality assessment system. it is also a national inspection and assessment notified body of import and export commodity in china.noa is a high-tech enterprise in shanghai.

improve performance, realize asset value appreciation, and service throughout the entire value chain

from pre-design to post-operation, noa has the ability to guarantee the whole life cycle of the business. noa, as an independent third-party inspection company, has a large number of domestic and international standards and specifications proficient in design, welding, non-destructive testing, painting, packaging and other fields the experienced team of professional engineers and inspection experts, with more than ten years of experience in the domestic market, is familiar with all aspects of the domestic industrial equipment supply chain, and can provide you with technical support services for the full life cycle of technical services in a timely manner, combining various products. inspection, certification, testing, consulting, and auditing services can provide you with one-stop all-round comprehensive services.

quality, efficiency and service

noa has formed a mature and solid operation system in the development of more than 20 years. we let technical experts who are familiar with market regulations and testing standards and have professional industry experience to carry out inspection, evaluation and design review work. while meeting the requirements of domestic and international standards, we ensure that customers can obtain satisfactory service results in the first time with accurate time-sensitive management methods, and ensure that customers can seize the opportunity in the market competition.

service area

noa inspection services currently cover europe, australia, russia, some middle east regions and most regions in china. noa can ensure the consistency and continuity of customer service in different regions, and eliminate the impact of unfamiliar environments on customer quality. the guarantees and the impact of project implementation enable customers to participate in different markets across the country or around the world with flawless quality.

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