Unsaturated polyester resins Industrial Technology

Unsaturated polyester Dot print fabrics,non-woven products,non-woven bags,coverall shoe, Garbage Bag with Draw Cord, Garbage bag with draw tape，nonwoven shopping bags，non-woven products manufacturer resin industry in foreign countries, after many years especially in the past 10 years of research in low-shrinkage resin, corrosion-resistant resin, strength and toughness of resin, buy low water-unsaturated polyester resin, transparent unsaturated polyester resin, low free residual styrene of unsaturated polyester resin, PET-based unsaturated polyester resin, low-volatile resin, gel coat resin, foam unsaturated polyester resins, glass fiber reinforced resin fishing vessels, heat resistance and light-curing resins UPR resins in, resulting in a large number of results; pairs of modified unsaturated polyester resin and its flame-retardant technology, there are also reviewed. Unsaturated polyester resins (UPR) with good mechanical properties, electrical properties and resistance to chemical corrosion, machining process is simple, it is more rapid in recent years, overseas development is a thermosetting resin, one of fast-growing species. Are widely used in industry, Dot print fabrics,non-woven products,non-woven bags,coverall shoe, Garbage Bag with Draw Cord, Garbage bag with draw tape，nonwoven shopping bags，non-woven products manufacturer、agriculture, traffic and transport and other fields. Unsaturated polyester resins can be divided into two series of enhanced and non-enhanced. Unsaturated polyester resins are commonly used flame retardant for Al (OH) 3, Sb2O, phosphate, and Mg (OH) 2 and so on. At present Europe has also adopted the method by adding phenolic resin, while the United States and other FastmanCompany also used to join two phosphate and phosphoric acid 3-methyl-ethyl ester, have received better results.

With regard to unsaturated polyester resins used for the expansion of graphite flame retardant, foreign prepared unsaturated polyester resin used as a flame retardant expandable graphite, expanded graphite powder has been proved to be unsaturated polyester resin, an effective expansion of flame-retardant additives. The results show that the quality of expanded graphite of the adding amount of resin of 10%, it can reduce the cross-linked polyester flammability. When combined with synergistic agents used in conjunction with ammonium polyphosphate, the expandable graphite is particularly effective flame retardants. While the new halogen-free, flame-retardant phosphorus-containing unsaturated polyester, Dai Nippon Chemical Industrial Co., Ltd. was prepared by halogen-free, flame-retardant phosphorus-containing unsaturated polyester resin composition and its objects, curing materials, molding materials and laminates. Phosphorus-containing unsaturated polyester containing: from Chung-phosphine derivatives with the formula RIR2HP: x (I); [R1R2 = substituted linear or branched alkyl, cycloalkyl; A stays the base I can use CH: CH Alternative; R1 and R2 may form a ring containing phosphorus or phosphorus; X = O, S], the phosphorus-containing unsaturated Dot print fabrics polyester used I with some of the double bonds of unsaturated polyester addition reaction, or I with unsaturated Multiple key acid or its derivatives and the corresponding part of the polyester synthesis prepared by addition reaction of unsaturated bonds. For example, 16.69mol 1,5 - cyclooctadiene with phosphine in the 21.50mol of 2,2 - azobis (2,4 - dimethyl-amyl nitrile) there is to be carried out under the addition reaction of a 38.4:61.6 ( GC relative area ratio) of 1,4 and 1,5 - ring Sim stays phosphine mixture. 0.975mol with a mixture of hydrogen peroxide to handle any 0.996mol39.4: 60.6 (3/P-NMR relative area ratio) of 1,4 and 1,5 - ring Sim stays phosphine oxide.

Such a mixture (50.0g), A fork with 40.3g and 73.0g propylene glycol succinate at 180 ℃ in the presence of hydroquinone to handle any Acidity (KOH) is 8.3mg / g of phosphate ester oligomers, The fumaric acid oligomer with 67.3g of hydroquinone in the presence of 200 ℃ polycondensation get 177.0g Acid Value (KOH) to 20.6mg / g of phosphorus-containing unsaturated polyester resins. 170g with 192g of styrene product mix to be number average molecular weight is 4000 resin, containing 100 copies of such a curing agent resin and 2.0 were (PercumylH80) components of the casting mold into the glass, 100 ℃ curing, curing at 175 ℃ and then get cast plate, UL-94 flame retardancy V-0 Ji. Flame-retardant unsaturated polyester resin-based composite materials, such as NittoDeako the company has developed a smooth surface with a flame-retardant fiber reinforced plastic (FRP) components, this component constituted by a flame-retardant FRP. Such flame-retardant FRP is available from the fiber matrix containing the styrene monomer and flame-retardant non-woven fiber surface layer of thermosetting resin composition was prepared by impregnating the composition of matter. This device can be used to protect cables and other Garbage bag with draw tape cable management. For example, pultrusion and hot-winding method to make glass fiber impregnated containing FMS531 (containing 45% styrene monomer unsaturated polyester) and Al (0H), and Kynol (phenolic resin, non-woven fibers) made of a pipe, its toughness strength of 240MPa, a smooth surface and no formaldehyde emissions. ScottBaderCoLtd discussed to meet the security needs of the market of fire retardant composite material. Since the aircraft and building components manufactured since the introduction of unsaturated polyester resins, there is a demand for these materials has been confirmed from the fire resistance of fire spread capacity.

30 years of practice shows that the development of resins, additives progress and component design have seen able to resist some of the most intense fire in the development of plastic-based composite materials, such as: the North Sea oil lift pipe trestle protection. In addition the development of flame-retardant resins, fire-retardant gel coating of the introduction and expansion of coatings development, expansion of glass fiber reinforced plastics market acceptance capacities. These and its unique combination of lightweight features for its 70 years in the last century, the application of many construction projects provide a non-woven bags good. However, in fire conditions, there is always some problems, namely, glass, steel combustion smoke and toxic gases, smoke a place that is not enclosed places. But in recent years the development of resin found a solution to this problem. Of course, the law changed for different applications, but the overall trend is to improve the anti-light, reduce smoke and reduce the release of toxic fumes. However, these requirements should be balanced with the durability requirements, especially for outdoor applications, this non-flame-retardant gel coating with a combination of flame-retardant laminating resins, even in the past, the use of non-durable flame-retardant gel coating when has successfully reduced the burning rate of the surface spread. FRP has demonstrated its presence in the scene that has excellent structural integrity characteristics. The use of appropriate materials and swelling of the mineral surface coating can enhance this advantage. In the article discussed issues relating to smoke, flame spread and ignite the surface of, for the sake of standardization and provide the basis for legislation. United States Ppgohio Industries developed for composite materials, the composition of a flame-retardant material.

Laminated board in a combination of flame-retardant additives (ammonium polyphosphate, azo-bis-carbon amide, 3 (2 - hydroxyethyl) isocyanate, and the combination of hydrated aluminum) increased LOI and reduces smoke density values. Phosphorus-containing flame retardants and used amine as curing agent resin C as the base body of the LOI value of laminate top. Dainippon Ink & Chemical Co., Ltd. has developed various deposit with excellent stability of the composition of flame-retardant epoxy vinyl ester resin material and curing molding products. Used in electronic insulation materials, laminated board, fiber-reinforced molding composition of materials such as adhesives, including phosphate, from two epoxy-containing epoxy compound with (a) single functional response of phenol and (2) Vinyl does not Preparation of single-carboxylic acid reaction of saturated epoxy vinyl ester. For example, Epiclon830 (bisphenol F epoxy resin) with o-cresol reaction, and then with the reaction of methyl methacrylate, non-woven bagsand then mixed with the styrene, and again with the PX200 (phosphate) to be a mixed composition of matter, which can be used for glass fiber reinforced prepreg sheet and processed into laminates UL-94 flame retardant to achieve V-0 Ji. Foreign unsaturated polyester resin technology trends: The main development and application of low-shrinkage resin, flame-retardant resins, transparent unsaturated polyester resin, low-volatile resin, foam unsaturated polyester resin, heat-resistant poly-unsaturated ester, low-volatile resin, buy low water-unsaturated polyester resin, glass fiber reinforced resin fishing boats, light-cured UPR resins, strength and toughness of resin, corrosion-resistant resin and PET-based unsaturated polyester resin. By block, graft copolymer and interpenetrating network, dicyclopentadiene and other chemical modification methods for resin-modified or modified with the blending and other physical methods to improve product performance, increase the number of varieties and expand applications.

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