Composition Analysis of Plastic Products-NOA Testing & Certification Group

Composition Analysis of Plastic Products

Plastics are polymer compounds (macromolecules) that are polymerized from monomers as raw materials through polyaddition or polycondensation reactions. They have medium resistance to deformation and are intermediate between fibers and rubber. They are composed of synthetic resins and fillers, plasticizers, stabilizers Agents, lubricants, pigments and other additives. The main component of plastic is resin. Resin refers to a polymer compound that has not been mixed with various additives. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resins, with no or little additives, such as plexiglass.

Plastics have good properties such as chemical resistance, transparency or translucency, good insulators, light weight and sturdiness, easy processing and mass production, low price, wide range of uses, multiple functions, and easy coloring. They have become the most commonly used materials for daily necessities. Plastic products are widely used in consumer goods, packaging, transportation, agriculture, forestry and water conservancy, military defense, electrical communications, medical and health, culture, education and sports, daily necessities and other industries.

According to the different use characteristics of various plastics, plastics are usually divided into three types: general plastics, engineering plastics and special plastics.

After a long-term struggle and opening up to the world, China's plastics industry has formed a relatively complete industrial system and has become a basic material industry that keeps pace with steel, cement and wood. As a new type of material, its application fields have far exceeded the above three. materials. Since entering the 21st century, China's plastics industry has made remarkable achievements and achieved a historic leap. From the production and development speed of synthetic resin, plastic machinery and plastic products, it shows the strong development momentum of China's plastics industry.

NOA has a central laboratory of 30,000 square meters, with organic laboratory, inorganic laboratory, physical and chemical laboratory, thermal analysis laboratory, mechanics laboratory, reliability laboratory, combustion laboratory, and weather resistance laboratory. It can provide one-stop analysis and testing services for raw material quality control, component analysis, foreign matter analysis, performance testing, and reliability testing for plastic materials and products.

Service content

We can provide component analysis, formulation analysis, failure analysis, comparative analysis, foreign matter analysis for products through large-scale precision instruments such as spectroscopy, chromatography, nuclear magnetic resonance, and the use of "light-color-heat-quality-element-chemical" multi-analysis methods Analysis and other services, help customers analyze the chemical composition and component content of samples, or qualitatively and quantitatively analyze specified components and content according to customer requirements, identify raw materials, additives, specific components, content and foreign matter components and other analytical services.

1. service product

service product	Service area
Resin raw material	Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Polytetrafluoroethylene (PTFE), Polyvinyl chloride (PVC), Phenolic Molding Compound, Polycarbonate (PC), Polyurethane, Polyamide ( PA, also known as nylon), epoxy resin, ABS resin, polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyarylate ethylene-vinyl acetate copolymer (EVA), PPS plastic, acrylonitrile-butadiene-styrene (ABS) resin, copolyformaldehyde resin, polyamide 1010 resin, etc.
Plastic additives	Fillers, plasticizers, stabilizers, colorants, lubricants, antioxidants, antistatic agents, foaming agents, antioxidants, coupling agents, heat stabilizers, etc.
plastic pipe	Foamed pipes, drainage pipes, agricultural pipes, PP pipes, PVC plastic pipes, double-wall corrugated pipes, HDPE double-wall corrugated pipes, polypropylene copolymer polyethylene pipes, etc.
plastic pipe fittings	VC-U pipe fittings, double-wall corrugated pipe fittings, PVC-U pipe fittings, PVC pipe fittings, aluminum-plastic pipes, porous pipes.
plastic hose	Oil hoses, spray hoses, welding hoses, reinforced hoses, hydraulic hoses, cooling system hoses, internal combustion engine hoses, compressed air hoses, etc.
Packaging Materials	Packaging bags, packaging bottles, packaging boxes, plastic case packaging, foam materials, packaging labels, etc.
plastic film	Cling film, packaging film, agricultural film, protective film, geotechnical film, air cushion film
other products	Nylon rope, nylon socks, fishing line, rope, plastic welding rod, plastic substrate, etc.

2. service items

service name	service definition
Composition Analysis	Qualitative and quantitative analysis of components
Material identification	Resin material identification
Comparative analysis	Qualitative and quantitative analysis of components + description of component differences + suggestions for performance improvement
Foreign body analysis	Foreign body discovery + analysis plan + test results + foreign body composition analysis conclusion
failure analysis	(fracture, crack, precipitation, delamination) and other failure background questionnaire + analysis plan + test results + failure analysis conclusion
Specified Component Analysis	Compound name and content + test method
Resin structure analysis	comonomer structure
Large instrument test	PY-GCMS, TGA, DSC, NMR spectrum test
Raw material quality control	Raw material purity test, material qualitative analysis, qualitative and quantitative analysis of specified components

Service process

Q&A

1. There are many ways of processing and molding plastic products, what are the main types?

According to the different molding methods of various plastics, it can be divided into various types such as film pressing, lamination, injection, extrusion, blow molding, casting plastic and reaction injection plastic. Film-pressed plastics are mostly plastics whose physical properties are similar to those of general solid plastics; laminated plastics refer to fiber fabrics impregnated with resin, which are combined into a whole material by lamination and hot pressing; injection, extrusion and blowing Plastics are mostly plastics with similar physical properties and processing properties to general thermoplastics; cast plastics refer to liquid resin mixtures that can be poured into a mold and hardened into a certain shape product under no pressure or a little pressure, such as MC Nylon, etc.; Reaction injection plastic is a plastic that uses liquid raw materials, pressurized and injected into the film cavity to make it react and solidify into a certain shape product, such as polyurethane.

2. Each plastic container has a number at the bottom (it is a triangle with an arrow, and there is a number inside the triangle), what does this mean?

The triangle with the arrow represents that the plastic is recyclable, and the number represents the material information of the plastic. "No. 1" stands for polyethylene terephthalate PET, "No. 2" high-density polyethylene, "No. 3" PVC polyvinyl chloride, "No. 4" low-density polyethylene LDPE, "No. 5" polypropylene PP, "No. 6" polystyrene PS, "No. 7" other plastics (common PC, nylon, etc.).

3. A customer mainly produces low-end PVC pipe fittings. Because the taste of the pipes is too strong, customers are constantly losing, and they have been looking for a breakthrough for new products. In the end, I found two suitable PE pipe fittings and wanted to create a new product line, but limited by previous experience, I could not take the first step. How can I help through NOA?

Through the analysis method of NOA large-scale instrument, the product components provided by NOA are firstly analyzed in reverse, and after obtaining the complete composition, the process development and debugging of the product are carried out to help customers finally produce new products. And good sales and profits.

4. In order to improve product quality, a plastic manufacturer purchased a large number of well-known brand heat stabilizers from a distributor. The final product is not as good as the previous product. It is suspected that the distributor's heat stabilizer has quality problems. NOA can assist Solve what problem?

The composition of the heat stabilizer was analyzed by NOA, and it was found that a large amount of filler components were mixed in it, resulting in the performance not meeting expectations. Help manufacturers find raw material quality problems and recover economic losses.

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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