Daily Archives: September 2, 2015

Thermal stabilizer trimethyl phosphate TMP-modified polyester technology to improve product performance polyester

 

Polyester film (BOPET) are used as packaging materials throughout, the market increasingly demands progress against it. Thermal stabilizer trimethyl phosphate TMP-modified polyester technology to improve product performance polyester, by copolymerization, modification, surface modification coating essentials, modified polyester raw material, can improve the BOPET film Performance in isolated, high temperature, UV, heat-sealable and so on. Polyester (PET) refers to the ester group-containing thermoplastic polyester short. As a member of a saturated thermoplastic polyester, polyethylene terephthalate plastic packaging materials used throughout most kind. It can be used for a variety of bottle molding containers, sheets and films.

Among them polyester film (BOPET) the largest application market is flexible composite materials, 50% of the total amount. People living water is usually beneficial improvements to the packaging material requirements are also getting higher and higher, for example, require a high isolation, high heat resistance, high transmittance, high light, low haze, anti-ultraviolet radiation, fire-retardant , heat-sealable, meet food hygiene requirements and so on. Obviously, ordinary polyester film can not meet these requirements, we shall be in accordance with the requirements of a difference, from the perspective of the difference must be modified PET.

Polyester (PET) refers to the ester group-containing thermoplastic polyester short. As a member of a saturated thermoplastic polyester, polyethylene terephthalate plastic packaging materials used throughout most kind. It can be used for a variety of bottle molding containers, sheets and films. Among them polyester film (BOPET) the largest application market is flexible composite materials, 50% of the total amount. People living water is usually beneficial improvements to the packaging material requirements are also getting higher and higher, for example, require a high isolation, high heat resistance, high transmittance, high light, low haze, anti-ultraviolet radiation, fire-retardant , heat-sealable, meet food hygiene requirements and so on. Obviously, ordinary polyester film can not meet these requirements, we shall be in accordance with the requirements of a difference, from the perspective of the difference must be modified PET.

Our production and export of trimethyl phosphate, exported to Japan, South Korea, India, the United States and other countries. 80 percent of exports.

Polyester thermal stabilizer trimethyl phosphate normally used (TMP) or triphenyl phosphate (TPP), their low phosphorus content, a large addition amount, an amount causes excessive drop melting point PET, transparency and impact ʱ?? France introduced a new thermal stabilizer triethyl phosphate (TEPA), is reported to make PET low haze, transparency and progress. Development of new, efficient, non-toxic, non-polluting heavy metal catalyst is a polyester production skills progress and an important part. Currently, the vast majority of the catalyst used in the polyester production apparatus antimony catalysts are, for example, antimony trioxide, antimony acetate, antimony ethylene glycol and the like. The fear is that antimony belong to heavy metals, is not conducive to environmental protection, and even may be hazardous to human health. Therefore, to develop free of heavy metals, no environmental pollution, polyester catalyst needs very healthy, especially as PET food packaging materials, the more a sense of urgency.

source:http://www.chinayaruichem.com/

Application of spray polyurethane (urea) elastomer field DETDA

Spraying polyurethane elastomer technology has also undergone a similar three stages, polyurethane elastomer coating process Initially it was implemented, using polyols, aromatic isocyanates and amine catalysts, the system is sometimes also added some of the solvent to reduce viscosity. Since both the process and product performance, there are many defects, so, RIM PROCESS DETDA will soon be introduced to the spray elastomer technology. To this period, spray polyurethane (urea) elastomer DETDA application areas, specifically for the polyurethane elastomer coating equipment also will be available. In the late 1980s, when Texaco Inc. (now part of Huntsman Corporation) for the first time the industrial production of aliphatic amino terminated polyether, spray polyurethane developed to the third stage, the raw material elastomer system uses only a small amount of polyether polyol (semi-prepolymer with an isocyanate preparation), the active hydrogen component consists of the composition of amino terminated polyether and DETDA, without the need to add any catalyst to give the polyurea elastomer. ATPE reaction between an isocyanate and both quick and complete, the entire reaction process takes only a few notes bell, and almost independent of temperature and humidity, which greatly facilitates the construction site engineering applications. ATPE for spray polyurethane elastomer, not only provides a good processing performance, but also because the polymer having a polyurea structure, physical and mechanical properties of products, heat resistance, aging resistance, chemical resistance and abrasion resistance, etc., ordinary polyurethane elastomer unmatched.

My company mainly produces curing agent crosslinking agent chain extender DETDA, DMTDA, if you need a product information, please click to view diethyltoluenediamine (DETDA), dimethylthiotoluenediamine (DMTDA).

By means of modern spray technology, spray polyurea elastomer in industrial countries as the unique properties of the coating or lining material, widely used in construction of concrete anti-corrosion waterproof coatings, storage tanks, air tank and a storage tank corrosion rust-proof lining and a variety of transportation vehicles slip resistant protective layer, and so on. Similarly, in the spray polyurethane (urea) application, spray polyurethane elastomer elastomer DETDA areas in our country is in the research and in development, following the first in China to develop SPUA series of spray polyurea elastomer JSU series of spray polyurethane (urea ) elastomers also in June 2001 through the identification of the Jiangsu Provincial Science and Technology Department.

Throughout the overall momentum of development, it is considered a promotion and application of spray polyurea elastomer of poly boom in China has flourished.

 

Source:http://www.chinayaruichem.com/