During the online conference, a website interviewed Ms. Cao Naiyu, the new secretary of the Analytical Instruments Subcommittee of the China Instrument Industry Association. At the same time, from the entrepreneurs to the staff of the association, Ms. Cao Naiyu, who has changed her identity, sees how the association’s work and the association's role in the company are.
On-line Instrument Technology is Still on the Road “The Twelfth Five-Year Plan†Has a Bright Future In 2003, Ms. Cao Naiyu was critically appointed as the general manager of Beijing Beibei Maihaike Analytical Instrument Co., Ltd., an on-line instrument manufacturer. She had just entered the online instrument industry. “My earliest understanding of the online instrument industry came from Mr. Zhu Liangjun's remark: 'If the instrumentation industry is likened to the emperor's expensive crown, then the online instrument is the shining pearl in the crown', a metaphor is a good interpretation. The position of online instruments in the instrumentation industry, said Ms. Cao Naiyu.
So, how is the application of online instrument technology in China today? Ms. Cao Naiyu said, “The application of on-line instrument technology has a lot to do with the industry scale of its application area. When the industry scale does not reach a certain level, online instrumentation technology is not considered, but rather the laboratory instrument technology is prioritized. Instrumentation technology is widely used in all aspects of life compared to the application of online instrumentation technology in China is still 'on the road' and does not match its position in the instrumentation industry."
"However, with the development of related industries, online instrument technology has received more and more attention from all parties, and its development has also shown two major characteristics. First, the online instrument technology has gradually shifted from traditional industrial applications during the "Eleventh Five-Year Plan" period. The field is expanding into areas where people's livelihood issues such as food, environmental protection, and security are concerned.For example, during the 11th Five-Year Plan period, online instrument technology is widely used for gas pollution source monitoring.Second, people's awareness of online instrument technology moves from a single product. Complete solution, including signal acquisition, identification, data processing, communications, self-diagnosis, maintenance and other aspects."
With regard to the advancement of online instrument technology, Ms. Cao Naiyun said, “In terms of technology, during the “11th Five-Year Plan†period, online instrument technology has made three major advances: (1) Completed the transition from analog to digital technology, online Significant progress has been made in the intelligentization and networking of the instrument; (2) A number of instruments or technologies have reached the international level of high-end instruments and have already achieved industrialization; (3) Domestic control systems have entered large-scale projects, breaking foreign companies Monopoly situation."
Talking about the future development of online analytical instruments, Ms. Cao Naiyu said with joy that “2011 is the first year of the national “Twelfth Five-Year Planâ€. From the relevant “12th Five-Year Plan†that has been issued, we are pleased to see Online instruments have received great attention and the country urgently needs on-line instrumentation as a powerful means for the country to control safety, quality and emergencies."
"Specifically, (1) In the area of ​​food safety, develop technologies for rapid inspection of foods and agricultural products, and develop instruments for the analysis of toxic and hazardous substances and elements; (2) Develop environmental monitoring systems for online environmental protection, online Heavy metal detection equipment, and the use of online UV fluorescence field detection technology as the core technology for surface water monitoring; (3) In the field of instrument types, the development of infrared instrumentation, Raman spectroscopy and other on-line instrumentation technologies in related fields.In addition, in the '12 In the 'Strategic Emerging Industry' with focus on development, online instrumentation technology is also a key focus in the field of high-end equipment manufacturing."
Ms. Cao Naiyu added that during the “Twelfth Five-Year Plan†period, the state must also organize seven key technologies for on-line instrumentation, including new sensor technologies, industrial radio communication technologies, and precision machining technologies. Online instrument technology is V 'will usher in more opportunities and the development prospects are very broad."
The association builds bridges, and manufacturers pay attention to R&D investment to jointly win the market. Facing huge market demand and development opportunities, can domestic online instrument manufacturers win the market and seize opportunities? Ms. Cao Naiyu, who used to be the person in charge of the company, said, “Because of the influence of various historical factors, the gap between China's instrumentation industry and foreign countries is increasing, but I am still optimistic about its future development. More and more capital holders pay attention to and invest in the industry. The 'gap' is a must. Foreign online instrument companies have gone for decades or even hundreds of years, and we have only been going for more than 20 years. It is not realistic to catch up, domestic manufacturers need to resist temptation and do their jobs in a down-to-earth manner. It is particularly important to focus on R&D investment so as to achieve sustainable development."
"Now many domestic manufacturers do not pay attention to R & D investment, pay more attention to the immediate interests. Of course, domestic manufacturers to put profits into the market, and investment in R & D will have completely different results. Put into the market will have output, but it is not available The ability to continue to develop; while investing in R&D, there may be output, or it may be incomplete, and if it does, it will give the company the ability to achieve sustainable development. Very thoughtfully, there are three dial-up R&D personnel at NAC, one that can only be applied after ten years of research and development, one that can be applied after five years of research and development, and one who focuses on the upgrading of existing technologies. Maintenance, such a research and development system has enabled Nak to have a strong ability for continuous development. I think this is worth learning and learning from domestic manufacturers."
Talking about the role of industry associations for domestic manufacturers, Ms. Cao Naiyu said that "industry associations are neither 'markets' nor 'mayors', but industry associations are bridges connecting the 'market' and 'mayor' and can provide market information. And related national policies are passed to the manufacturers through the industry association platform."
Ms. Cao Naiyu also stated that “From the company’s person-in-charge to a full-time member of the industry association, I can better understand the value of the industry association for the company. Therefore, we have established the principle of “three thingsâ€. If one does not do it, the industry association will never do it. Give the company troubles and costly things; the second is to do less, that is, it is not necessary for some of the arranged work for the company to do; for more than three, that is done can do more for the business benefits, such as The Association publishes the "Analysis Instrument White Paper" and organizes various types of exhibitions, etc. It is hoped that through the bridge and platform of the industry association, domestic online instrument manufacturers will be helped to win the market and opportunities during the 'Twelfth Five-Year' period."
In the end, Ms. Cao Naiyu responded to the question concerning “Enterprises wishing industry associations to promulgate regulations to regulate the industry†and stated that “The first is impossible, the regulations are used to comply with and enforced, and the industry associations make any provision, but where one manufacturer does not comply There is no meaning in that provision; second, it should not be that the state explicitly prohibits the industry association from making any industrial agreement, which is a violation in the industrial operation.â€
It can slow down the reaction, maintain chemical balance, reduce surface tension, prevent light, thermal decomposition or oxidative decomposition. it mainly includes lead salts, metal soaps, organic tin, organic antimony, organic rare earths, pure organic compounds. Thermal stabilizers commonly used in industry mainly include lead salts, metal soaps, organic tin, organic antimony, organic rare earths, pure organic compounds, etc.
1.1 Organotin
(1) Excellent transparency The biggest advantage of organotin stabilizers is that they have excellent transparency. The use of organotin stabilizers in PVC formulations can produce crystalline products. Because of this, organic tin can be used in bottles, containers, corrugated boards, various types of rigid packaging containers, hoses, profiles, films, etc.
(2) Extraordinary thermal stability In terms of thermal stability, there is no other type of thermal stabilizer that can surpass it. Therefore, it is the preferred stabilizer for rigid PVC, and some varieties have better performance in soft products. Suitable for all PVC homopolymers, such as emulsion, suspension and bulk PVC, as well as vinyl chloride copolymers, graft polymers and polymer blends.
(3) The product is non-toxic. Most organotin stabilizers are non-toxic, and the migration of organotin stabilizers in rigid PVC is minimal. Therefore, organotin stabilizers are the preferred heat stabilizers for PVC for food contact.
(4) Good compatibility. Organotin stabilizers have good compatibility with PVC, so there is generally no precipitation on the metal surface, such as lead salt stabilizers and metal soap stabilizer systems.
(5) Poor lubricity Sulfur-containing tin stabilizers have poor self-lubricity. Therefore, many commercially available sulfur-containing organotins are equipped with lubricants to prevent hot melt from adhering to processing equipment during processing.
(6) High cost Compared with other types of stabilizers, the overall performance of organotin stabilizers is closer to the ideal stabilizer. However, all organotin stabilizers, regardless of their structure, have the main disadvantage that their manufacturing cost is much higher than that of lead stabilizers or metal soap compounds. In recent years, by adopting new synthetic technology, or reducing its usage in formulas, its formula cost has been reduced. In the 1970s, foreign countries developed low-priced tin products, which reduced the tin content, which also reduced the price to a certain extent.
1.2 Lead salt
(1) l Excellent stability experiments proved that among the commonly used basic lead salts, the heat resistance of sulfite is better than that of sulfate, and the heat resistance of sulfate is better than that of phosphite. The tribasic lead sulfate, which is widely used in the PVC industry, has a higher effective lead content and shows better thermal stability than other products.
(2) Excellent insulation. Because lead salt is non-ionic and non-conductive, it is inert, which makes lead salt stabilizers widely used in wire and cable industries.
(3) Excellent weather resistance. Many salt compounds can act as white pigments and can show strong covering power, so they have strong weather resistance.
(4) Poor transparency Transparency is a problem related to weather resistance. When used in wires, cables and record materials, there is no need to care about transparency, because most of these products are white or very dark black.
(5) Inexpensive lead salt stabilizer is the lowest price among all stabilizers. Therefore, despite the continuous introduction of new stabilizers, lead salt stabilizers still dominate the stabilizer market after half a century. The composite lead salt introduced to solve the dust and dispersion problem has increased in price, but still maintains a competitive advantage with other types of stabilizers.
(6) The toxicity of the toxic lead salt stabilizer limits its application in many occasions with strict hygiene requirements. For example, many countries have revised the lead content standards in drinking water, and it is no longer possible to use lead salt in PVC water pipes.
(7) Poor dispersibility The dispersibility of salt lead is poor, but the newly launched one-package product is equipped with lubricants, which solves the dispersibility problem to a certain extent. Because of the above characteristics of lead salt stabilizers, they are especially suitable for high-temperature processing. They are widely used in various opaque hard and soft products and cable materials, such as various pipes, plates, indoor and outdoor profiles, foam plastics, artificial leather, and wires. Cables, records, welding rods, etc. The most important lead salt stabilizers are tribasic lead sulfate, dibasic lead phosphite, and dibasic lead stearate.
1.3 Organic antimony
(1) Better stability. The organic antimony stabilizer has basically the same color stability and lower melt viscosity as organotin at the same temperature. In the twin-screw extrusion process, the effect is particularly outstanding when used in combination with calcium stearate. .
(2) The price of organic antimony stabilizer is much lower than that of methyl tin or butyl tin. In addition, the amount of organic antimony used is relatively low, so the use of organic antimony can achieve a better performance/price balance.
(3) The product is non-toxic. In the United States, when a twin-screw extruder is used to manufacture PVC pipes, the PVC water supply pipe manufactured with a formula composed of antimony stabilizers, calcium stearate and other lubricants conforms to the U.S. NSF (National Sanitation Foundation) )Regulation.
(4) Poor transparency and light stability. The transparency of organic antimony compounds is not as good as organotin stabilizers, and it is also lower than the barium/fu and calcium/zinc metal soap system. It is close to lead salts and has poor light stability, so antimony is stable. The agent is mostly used for indoor products without color requirements. The antimony stabilizer itself is also required to be stored in an opaque container.
(5) Poor lubricity. Antimony stabilizers have poor lubricity. Therefore, its use must be combined with a large amount of lubricant without exception.
1.4 Metal soap
(1) The tin soap stabilizer Fu soap is the best type of metal soap. Its advantages are also reflected in the absence of initial coloring, and can produce colorless and transparent products; excellent light stability; it has the effect of preventing precipitation and adhesion. . However, because tin salt is toxic, there are strict regulations on its manufacture and use in the Labor Safety and Health Law. In recent years, the use of Fuzao has shown a downward trend.
(2) Zinc soap stabilizerThe thermal stability of zinc-based stabilizer to PVC is extremely poor. The sample with zinc soap suddenly turns black when heated, that is, the so-called "Zine burning" phenomenon occurs, but it has the following advantages: The initial coloring is excellent; the effect of preventing fouling is good; it can improve the weather resistance; many zinc soaps are recognized as non-toxic stabilizers, so they can be used in non-toxic formulations with calcium soaps.
(3) Barium soap stabilizer Barium compounds have good thermal stability and good lubricity, but the red initial coloration occurs during processing, and it is easy to cause sticking to the roller.
(4) The stability of calcium soap stabilizer is poor, but it is recognized as a non-toxic additive in the world and has excellent lubricity.
(5) Other metal soap stabilizers used in the industry include magnesium stearate, file stearate, aluminum stearate, potassium stearate, etc., among which magnesium stearate is similar to calcium stearate and can be used Materials that are in contact with food; aluminum stearate is similar to zinc stearate, and is approved by the U.S. FDA and the Japanese Vinyl Chloride Food Hygiene Association for food packaging; Stearic Acid files and potassium stearate are also non-toxic products and belong to lead salts , Tin soap and barium soap substitute.
(6) The performance requirements of the composite metal soap stabilizer processing industry for stabilizers are various, and a single metal soap often cannot meet the use requirements, so the use of composite stabilizers has become a trend. A single metal soap compound is rarely used in the PVC industry, and it is usually a compound of several metal soaps. This compound is not a simple addition of properties, but takes advantage of the synergy between the components. The composite metal soap stabilizer generally includes the stabilizer main body (i.e. metal soap), solvent (organic solvent, plasticizer, liquid non-metal stabilizer, etc.), functional additives (auxiliary stabilizer, transparency modifier, light stabilizer, Lubricants, etc.). According to the form, it is divided into solid compound and liquid compound. According to the main component, it can be divided into calcium/zinc compound stabilizer, barium/fu compound stabilizer, barium/zinc compound stabilizer, etc. Among them, the calcium/zinc composite stabilizer has a pivotal role in replacing toxic metals because it is non-toxic.
1.5 Rare earth stabilizer
(1) Excellent thermal stability The thermal stability of rare earth stabilizers is better than traditional lead salt series and barium/zinc, barium/ho/zinc stabilizers. In some applications, rare earth stabilizers can partially or completely replace organotin.
(2) Good transparency. The refractive index of rare earth stabilizers is very close to that of PVC Resin, which can replace traditional organotin and be used in the field of products with higher transparency requirements.
(3) Excellent weather resistance. Rare earth elements can absorb 230-320nm ultraviolet light. Therefore, rare earth stabilizers have anti-photoaging effects and are suitable for outdoor products such as PVC corrugated boards and window materials.
(4) Excellent electrical insulation properties. Some rare earth multifunctional stabilizers can be used to replace lead salt stabilizers in cable material formulations, and their electrical insulation properties are comparable to lead salts.
(5) Non-toxic, safe and hygienic. Rare earth elements are low-toxic elements and have no toxic hazards to the human body in their production, processing, transportation and storage. Rare earth stabilizers are non-toxic products and can be used in food packaging and medical packaging products.
(6) The processing performance is slightly worse. In the case of a large amount of rare earth stabilizer, the roll release of the material is not ideal, and there is a tendency to press out. Generally, better results can be achieved by using stearic acid or calcium stearate in combination.
In summary, rare earth stabilizers can be used for water pipes, injection pipe fittings, window frame profiles, door panels, wire ducts, foam products, artificial leather, cable materials, soft and hard transparent products, food packaging materials, etc.
1.6 Auxiliary stabilizers Auxiliary stabilizers include phosphite, epoxy soybean oil, hindered phenols, etc., which mainly rely on the synergistic effect between metal stabilizers to improve the stabilizing effect, and are generally called co-stabilizers. In addition to compounds such as mesaminocrotonic acid ester, 2-phenyl saccharin, vein derivatives, and diketone can be used in combination with metal stabilizers to improve the effect of metal stabilizers, they also have a certain stabilizing effect. Such compounds are usually called pure organic stabilizers. With the development of PVC stabilizers today, the progress of metal stabilizers is relatively slow, and the research and development of auxiliary stabilizers are unprecedentedly active, which has constituted a major trend in the field of PvC stabilizers. Auxiliary stabilizers are rarely used alone, and are often used in conjunction with primary stabilizers to improve initial coloration or improve long-term stability.
Lead Salt Stabilizer, Compound Stabilizer,Pvc Stabilizer,Titanium Dioxide Anatase
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