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PRODUCTS

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A private high-tech enterprise specializing in the research and development, production and sales of new silicone materials and polyethylene wax fine chemicals

Functional Silane

Qiquan silane products have won a good reputation and market among domestic and foreign customers through advanced production technology, perfect testing methods, and excellent product quality.

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High-density oxidized polyethylene wax

Qiquan oxidized polyethylene wax focuses on emulsion processing and production. The products have the characteristics of high melting point, moderate viscosity, stable product quality, and good emulsification effect...

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Low-density oxidized polyethylene wax

Qiquan low-density oxidized polyethylene wax focuses on emulsion processing and production. The products have the characteristics of high melting point, moderate viscosity, stable product quality, and good emulsification effect...

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Polyethylene wax

Qiquan pyrolysis polyethylene wax is produced through advanced and unique pyrolysis technology. The product has the characteristics of good whiteness, low odor, uniform molecular weight distribution, and good thermal stability...

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ABOUT US

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QIQUAN INDUSTRIAL TRADE

Zibo Linzi Qiquan Industrial Trade Co., Ltd. was established in January 2003. It is located at No. 96, Weiliu Road, Fine Chemical Park, Qilu Chemical Industrial Park, Zibo City, Shandong Province, with a registered capital of 30 million yuan and an area of 30,000 square meters. The company is mainly engaged in the production, research and development and sales of two major industrial series products of silicone new materials and wax fine chemicals.

New organic silicon materials are committed to the development and production of γ-chlorohydrocarbon-based intermediates, silane coupling agent series and ethyl silicate series products. The company has established the Shandong Province Organosilane Coupling Agent Engineering Technology Research Center, and has made considerable progress in technological progress and equipment improvement.

Development

Qiquan Industry and Trade is located in Qilu Chemical Industrial Park, a national professional...

NEWS

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Understand the latest industry trends, pay attention to the development trend of chemicals

Announcement of Environmental Protection Acceptance of Linzi Qiquan Industry and Trade in Zibo City

2020

05 27

Announcement of Environmental Protection Acceptance of Linzi Qiquan Industry and Trade in Zibo City

Environmental Protection Acceptance Monitoring Report on the Completion of the Tank Farm and Chloropropyl Trichlorosilane Continuous Distillation Process Modification Project of Zibo Linzi Qiquan Industry and Trade Co., Ltd.

Application of polypropylene wax in coatings and inks

2020

05 27

Application of polypropylene wax in coatings and inks

Wax has been used earlier as additives for coatings and inks, and is characterized by simple use. After the coating is applied, due to the volatilization of the solvent, the wax in the coating will precipitate, forming fine crystals, which float on the surface of the coating film, and play a variety of roles in improving the performance of the coating film. Except for high molecular mineral waxes, natural waxes are rarely used in coatings and inks, replaced by high molecular waxes and their modified derivatives. They can give the coating film good water resistance, heat and humidity resistance, scratch resistance, matting resistance, anti-sticking properties, and a good hand feel. Their scratch resistance is beyond the reach of pigment matting. Macromolecule wax is used as an auxiliary agent, and its dosage is 0.5~3%. It is suitable for acrylic paint, alkyd paint, nitro paint and polyurethane paint, industrial baking paint, vinyl paint and latex paint. The combination of polymer wax and fumed silica can make the film performance more perfect, and its matting effect, water resistance, chemical resistance, scratch resistance, abrasion resistance and interlayer adhesion have been significantly improved. Polypropylene wax is a low molecular weight polypropylene homopolymer or copolymer widely used in coatings. The so-called wax means that the polymer is finally distributed in the form of microcrystals on the surface of the coating and plays a role similar to wax and more diverse. As additives, waxes are playing an increasingly important role in coatings and inks. The role of polypropylene wax depends on the following factors: the type and specification of polypropylene, the final particle size and the ability to migrate to the surface of the coating film, the composition of the coating, the nature of the coated substrate, and the application method of construction. The following describes its role: 1. Extinction. Different types of wax have different effects on the gloss of the coating film: from significant matte to increase gloss and produce unusual gloss and hammer lines. Hand feeling: The wax additives make the coating have a good hand feeling, which cannot be achieved by other matting agents. 2. Abrasion resistance. Anti-scratch, anti-wear, anti-polishing, anti-marking One factor to improve anti-friction and anti-scratch is to reduce the friction coefficient of the coating surface, so that when objects contact the coating surface, the sliding tendency is greater than the scratch tendency. In this regard, polypropylene The role of wax is similar to that of silicone oil, except that the former exists in the form of fine dispersed particles on the coating surface. A small amount is needed to achieve scratch resistance. Polypropylene wax, added to coatings, can greatly reduce the tendency to be polished by friction, while maintaining low gloss durability is often required in applications. For example, in alkyd varnish, when the amount of polypropylene wax is 1.5%, the anti-wear value of the coating film is doubled, and when the amount is 3%, the anti-wear value is increased by 5 times. When metal objects touch the coated product, they sometimes leave a black mark on the coating film. Adding polypropylene wax to the coating film can reduce this tendency or make the print easy to wipe off. The use of micronized wax in printing ink can significantly improve the abrasion resistance of the ink. 3. Anti-blocking property. Some workpieces, such as wooden or metal objects, often need to be stacked in a short time after coating. The advancement of printing technology also requires ink to avoid smearing of printed matter. Polyethylene wax can prevent adhesion and staining caused by the accumulation of production or printing. 4. Anti-sedimentation, anti-sagging and thixotropy. Positioning of metallic pigments. Polyethylene wax is dispersed in aromatic and aliphatic solvents, which can increase the precipitation resistance of coatings and inks. It also shows different degrees of thixotropy, anti-sagging and positioning to metallic pigments. Polyethylene wax can be added in coatings and inks in many ways: (1) Slurry and micropowder slurry are pre-dispersed forms of polyethylene wax in a solvent and are easy to add. Micropowder is the most commonly used form. Various brands of wax powder are suitable for coatings and inks of different varieties and requirements, and can be selected according to the physical and chemical properties and particle size distribution of the wax. The physical and chemical properties are mainly the properties of the wax itself, such as chemical structure, molecular weight, melting point, penetration, acid value, etc. The particle size refers to the particle diameter and its distribution, particle shape and surface state in microns. (2) Emulsion and dispersion Emulsion is a stable dispersion state of wax in water, usually with a particle size of 1 m or less. Below 200nm, it is usually transparen

What is the difference between paraffin wax and polyethylene wax?

2020

05 26

What is the difference between paraffin wax and polyethylene wax?

What is the difference between paraffin wax and polyethylene wax? Paraffin wax and polyethylene wax are two different wax types with different functions. In comparison, polyethylene wax has better performance. We can explore the application of both in PVC. Paraffin wax, also known as crystalline wax, is usually a white, colorless and odorless waxy solid. It melts at 47℃-64℃, and its density is about 0.9g/cm3. It is insoluble in water, but soluble in ether, benzene and some fats. According to the degree of processing refinement, it can be divided into three types: fully refined paraffin, semi-refined paraffin and crude paraffin. Polyethylene wax, that is, low molecular weight polyethylene, also known as polymer wax. Polyethylene wax is a low molecular weight polyethylene homopolymer or copolymer widely used in coatings. The so-called wax means that the polymer finally floats in the form of microcrystals in the surface layer to play a similar role to paraffin but is more practical than paraffin. The main functions of polyethylene wax in solvent-based coatings are: matting, scratch resistance, abrasion resistance, polishing resistance, anti-marking, anti-blocking, anti-precipitation, thixotropy; good lubrication and processing; metallic pigment positioning . Under normal circumstances, many manufacturers of PVC pipe profiles like to use paraffin as a lubricant. However, paraffin wax has a low softening point and poor dispersion. In the production process, the temperature is too high. The paraffin wax is basically liquefied and becomes gaseous and evaporates. The brightness of the finished PVC pipe will be affected, sometimes due to Uneven dispersion causes stains on the surface. PVC pipe profiles produced with polyethylene wax will not have such problems, because polyethylene wax has a high softening point, and under high temperature conditions, polyethylene wax will only become liquid. If the polyethylene wax has a high viscosity, the dispersion effect is not good, but the brightness is very good. If the polyethylene wax has a low viscosity, the dispersion will be very good, and the brightness is good. Some customers like polyethylene wax with viscosity, while others like low viscosity. Choose according to customer needs.

[Polyethylene wax] PVC pipe extrusion process

2020

05 26

[Polyethylene wax] PVC pipe extrusion process

PVC pipe extrusion process Chlorinated polyvinyl chloride resin (hereinafter referred to as cpvc) was successfully developed by Bfgoodrich in 1958. It is a chlorinated product of polyvinyl chloride resin (pvc), which has been chlorinated PVC chlorine content can be increased from 57% to 64%-75%. As the chlorine content increases, the corresponding temperature resistance, rigidity, chemical resistance, flame retardancy, smoke suppression, etc. can be enhanced, but the cpvc resin melts Increased viscosity, increased brittleness, decreased impact strength, and decreased thermal stability bring great difficulty to the extrusion processing of cpvc. At the same time, if the process is not properly controlled, a large amount of hcl gas will be generated and the processing equipment and molds will be severely corroded. Therefore, the extrusion process of cpvc resin has always been the focus of discussion. In the processing of cpvc resin, "plasticization" is the key. Therefore, how to obtain a good plasticization quality from the formula, equipment and process technology is the key to the processing of cpvc resin. One, the formula of chlorinated polyvinyl chloride (pvc-c) pipe 1. Heat stabilizer cpvc resin is easier to decompose than pvc during processing, so more heat stabilizer than pvc needs to be added. During trial production, it can be added at 1.5 to 2.5 times the amount of pvc, and then appropriate according to the trial production situation The general principle of increase or decrease is: the heat stabilizer must not be added too much, otherwise it will affect the plasticization of the cpvc resin. Basically, all heat stabilizers for processing PVC can be processed cpvc, such as lead salt stabilizers, calcium-zinc stabilizers, composite lead stabilizers, metal soap stabilizers and liquid organic tin stabilizers, among many heat stabilizers When the pipes have different special requirements, the selection is different. When producing sanitary cpvc pipes, calcium-zinc stabilizers or organotin stabilizers should be used; when producing pipes with requirements for temperature resistance, try their best Avoid using liquid organic tin stabilizers; do not add calcium stearate when producing high-impact pipes. 2. Lubricant The role of lubricant is as important as the role of heat stabilizer. Too little addition will cause processing difficulties and even cause considerable damage to the equipment. Too much addition will not only affect the quality of plasticization, but also It will lower the Vicat softening temperature of the pipe, so how to master the amount of lubricant added is the key, and it is also the key to the design of the cpvc pipe formula. It can even be said that the design of the cpvc pipe formula is actually the design of the lubrication system. The melt viscosity of cpvc resin is large, at least twice that of pvc resin [1], so the amount of lubricant added is slightly more than that of pvc resin. When using different stabilizers, the ratio of internal and external lubricants in the formula is different. Generally speaking, the use of lead salt stabilizers requires more internal lubricants and appropriate external lubricants; use organic The tin stabilizer needs to be equipped with more external lubricants and an appropriate amount of internal lubricant; when using a composite stabilizer with a lubricating system, the amount of internal and external lubricants should be appropriately reduced. The internal lubricant can be stearic acid (hst), and the external lubricant should be high temperature paraffin wax, pe wax or oxidized polyethylene wax. Generally, paraffin wax should not be used as the external lubricant of cpvc resin alone. In short, if the ratio of internal and external lubricants is coordinated, although the formula cannot be said to be a mature formula, at least there will be no problems in extrusion molding. 3. Impact modifiers and processing aids. Because of the high chlorine content of cpvc resin, its impact resistance is worse than that of pvc resin. It is modified by adding impact resistance agent. Commonly used impact resistance agents are: cpe, mbs, abs And impact-resistant acr, etc., adding cpe in the processing of cpvc pipes has a very obvious toughening effect. The addition of 8-12 parts has a good toughening effect, but adding cpe will significantly reduce the Vicat softening temperature of the pipe; mbs and abs have little effect on Vicat softening temperature, but because their molecular chains contain unsaturated double bonds, they have poor weather resistance; impact-resistant acr is an ideal impact modifier, but the price is higher. Based on the above reasons, the author recommends using a mixture of cpe/mbs as an impact modifier, which can take into account the product's requirements for Vicat softening temperature, impact resistance, weather resistance, and price. The ratio of the two is 1.5 :1 is appropriate. At present, the processing aid used in China is mainly a