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polyurethane ester foaming technology most new 进展
近2 year, 随 “洁净” foaming agent in polyurethane ester foaming product in strong/high made use, 人们纷纷改进 材 material formulation. however, in solution foaming agent replace issues rear, processing also 开始考虑 can reduce cost, improvement processing properties new formulation. most 近, in polyurethane ester industrial combined 会(API)发起 “ polyurethane ester 2006”会议 upper, 人们谈论 主题 is currently positive in technology new. 据说, most new technology 进展包括 construction field/area in used for hard plastics more alcohol, and used for use device and construction and other reinforcement type foaming agent, use HFC-245fa foaming insulation foam. in addition, about/regarding PUR rigid property foam several small issues 也悬而未决, pressure / foaming and 现场浇注 type type. front EPA requirements use HCFC-22 代替HCFC-141b, front is substitute/replace product, is it belongs to Clean Air Act in 612 strip/profile 款 规定 will 于2010 year 1 month 1 day front by 逐步淘汰 material 质. upper, will PUR technology used for automotive inner trim parts 引起 人们 attention/notes, its in types 神奇 喷雾 process can used for 隔音以 and is PUR surface belt/tape soft/flexible 触感. 取代HCFC-22 自EPA 消息称, 淘汰HCFC-22 期限 by front 2 year, to 2008 year 1 month 1 day is 止. in 3 year 里, HCFC-22 by widely used in hard field/area, EPA期待 can fast make non ODP foaming agent to application, cold equipment (例如冰箱, cold and other ), and construction use sheet/plate 材(包括连续 and non metal surface foaming sheet/plate ). HFC-245fa currently in hard spray coating foam insulation sheet/plate application upper 占统治 位. new type more alcohol and additives make 245fa foam plastics cost more low, more easy processing (图 sheet/slice 自Honeywell company)现 in, processing 商们不 不 in price and foaming and processing properties and other 方面选取一 balanced 点. currently, HCFC-22 price large is $1.50/lb(1lb=0.4536kg). 而2 types gas 态, easy fluorine carbon combined material already in use 冰箱, hot water device and hard foam sheet/plate field/area in 占据 统治 位, types is HFC-245fa(由北美 production 商Honeywell International以Enovate 3000 sales ), in year its price from $4/lb to $4.50/lb; types HFC-134a price from $2/lb涨 to large 约$3/lb. in addition, 异戊烷, positive 戊烷以 and ring price currently in 变化, from 50/lb to 90/lb不 and other. liquid 态 甲 acid thin alcohol ester Ecomate currently by application in spray coating foam insulation sheet/plate and foam production upper, this product can used for 自行车 base/seat 椅, high 尔夫手推车轮胎 and automotive and other 方面. Ecomate can and other foaming agent mixed use, its insulation value 介于HFC-245fa and between, price and carbon hydrogen combined material tool has can ratio property, easy 燃. other foaming agent also has water foaming and combined foaming agent. Arkema Transcend TDCE additives make HFC-134a现场 foaming more good, can 够取代HCFC-22, meanwhile improvement material can processing property can, flow property and property in upper, less has 3 代 table/sheet HCFC-22 substitute/replace material. Bayer MaterialScience research in types 商业化 HCFC-22 foaming system in selection types foaming agent used for 冰箱门 and cold 藏车. for/regarding cold upper application, Bayer发现, HFC-134a, HFC-245fa以 and types 80/20 ring 戊烷/异戊烷 mixed combined material foaming property can can to HCFC-22 water 平, 当然, for/regarding it long dimensional stability and and surface property currently also method 进行完整 assessment. is Bayer发现, use mixed combined material production foaming sheet/plate in 1 month rear shrinkage, use HFC and HCFC-22 production foaming sheet/plate 则未发生 shrinkage. from using/adopting HFC-134a, HFC-245fa, ring and water foaming foam sheet/plate 看, this 4 types foaming agent production property can and HCFC-22 versus 似. its in, water foaming system provide more high most small filling density, from make sheet/plate density to improve/increase; 而HFC-245fa foaming pressure shrink and tensile property can more low. 当然, long property can and bonding property can also method comparison. and meanwhile, Arkema introduction HFC-134a and company Transcend TDCE mixed combined material 代替HCFC-22 used for 现场浇注 testing 结果. front, Arkema就 already 经证明 TDCE in decrease/reduce pressure and 134a/ more alcohol viscosity 效果, it large large reduce true 空数目 and foaming degree. 据说, use TDCE取代部 separation HFC-134a and water, from make HFC-134a/TDCE/CO2 摩尔 ratio is 50:25:25. due to reduce pressure, meanwhile add fast speed foaming agent, therefore this mixed combined ratio rate more easy processing. another, foaming agent also improvement flow property, property and dimensional stability, its property can ultra- 134a, and HCFC-22 versus 似. meanwhile, TDCE foaming material hot rate 也令人满意. Foam Supplies company Ecomate foaming agent can 够进行 cost more low foaming, tool has good dimensional stability and flame retardant property can, density relatively low. company is, Ecomate is 取代HCFC-22 used for sheet/plate most product. most 近, company Eco1浇注 foaming system 由Underwriters Laboratories进行 25FS/300发烟 speed rate testing, used for testing sample thick 6in(1in=25.4mm). 据报道, this product already through Factory Mutual comprehensive Corner Wall燃烧 testing. used for hard foam new type more alcohol Oxid L.P.讨论 改进 type polyester more alcohol in HFC-245fa浇注 insulation and foaming sheet/plate and spray coating foam and other application. company development function ultra- Terol 256 polyester more alcohol 以抵消HCFC-141b偏 soft effect/influence. 据说, HFC-245fa几乎没 has decrease/reduce foam, reduce property can, therefore need in formulation in increase polyester more alcohol content. in, new Terol 925 function value is 2.45, 而Terol 250, Terol 305 and Terol 256 function value separation is 2, 2.15 and 2.30. solid strong/high degree (GS) testing in 18min开始, data 收集一直持续 to 30min. in 第20min时, use Terol 925 foaming foam GS value is 6.5mm, use other more alcohol foam GS value is 9.9~15.8mm. in 第30min时, upper 述GS value separation is 9.2mm and 14~20.8mm. according to Oxid research, more function polyester can make foam speed hard 化, from reduce demolding time. Oxid also 讨论 2 types new product, its experiment/testing property can 看起 不错, suitable for foaming agent and non sheet/plate and spray coating foam. use Oxid technology production foam more alcohol in low solvent understanding property. 据说DS 1220 and DS 1240 ratio Terol 305 and 256 tool has more large solvent understanding property. another, Oxid introduction types new low 羟基数 polyester more alcohol, it make acid ester use amount can decrease/reduce 7%~10%. Oxid improves more alcohol function, using/adopting reaction type additives non reaction type additives improve/increase foam dimensional stability and heat stabilized property. combined experiment/testing 显示, DS 1154 (200 OH) in physical properties and flame retardant property can and flow property ultra- Terol 563 (245 OH). currently research positive in different surface active property agent and catalytic agent optimization DS 1154 foam. Oxid polyester more alcohol can 够辅助HFC-245fa foam optimization cost and property can used for spray coating foam reinforcement agent most in application 商业化 PUR foam 时, 人们发现HFC-245fa can increase viscosity, 当然也限 made system more property. Air Products and Chemicals company development additives can 够克服 this defect, meanwhile can ensure foam other property can. Air Products in 2003 year API会议 upper launch Dabco PM-200, in Air Products also launch Dabco PM-300. this type of additives can reinforcement HFC-245fa foaming agent function, can used for hard spray coating foam in. 据说Dabco PM-300 can reduce more alcohol blending material viscosity, through reduce HFC-245fa concentrated degree reduce cost, decrease/reduce density, 并维持 thermal properties and mechanical properties 不变. most experiment/testing table/sheet 明, Dabco PM-300 used for HFC-245fa spray coating foam can make material reduce density, or in decrease small density lower 节约HFC-245fa use amount 达20%~30%. use Dabco PM-300 spray coating foam can improve/increase resistant pressure strong/high degree, in reduce density lower can maintain dimensional stability. in addition, Dabco PM-300 also improvement foam micro structure and combined property can, this for/regarding cold gas lower spray coating separation important. spray coating sheet/plate types used for manufacturing 隔音部 parts technology in already by Cannon company application to automotive inner trim parts production in. SoliSpray is types spray coating process, utilizing process can will heavy material heavy and oxidation iron filling to PUR层 in. Canno table/sheet 示, can selection hot molding or 者RRIM process sheet/slice filling. in Cannon SoliSpray process in, use FPL 10 mixed material spray coating high filling sheet/plate SoliSpray main/primary advantages is cost low, 不必进行昂贵 injection molding parts molding or pressure molding. technology will high filling PUR直接倾注 to injection molding parts mold in, rear to pressure machine upper, in injection molding parts mold in formed soft/flexible low density polyurethane ester. processing product tool has very good elastic property, 且节约 raw materials. Cannon through will its most new development FPL 10 mixed material used for SoliSpray process, make filling material 处理变 more easy. this use nozzle type production mono make property more high, more easy control, reduce spray coating phenomenon. sheet/plate filling polyurethane ester mono formed, material can by 直接喷射 to injection molding parts mold in. this type of parts has light slip and coarse 糙面, its production need pressure machine, need 一 支架以 made formed semi 模. in 三明治 structure sheet/plate in, its in is foam, can 够直接喷射 to semi in. polyurethane ester foam can in injection molding parts mold in bonding, pressure machine and standards injection molding parts mold is necessary equipment. as is SoliSpray 补充, Cannon also development foam and film technology, make plastics film can 够直接贴 in injection molding parts mold in and foam bonding. soft 触感芳香PUR used for automotive inner soft foam table/sheet technology 由Dow Chemical research development. new 芳香基 soft 触感RIM PUR polymer can injection or spray coating, can production different soft/flexible degree products. 芳香基PUR system ratio aliphatic PUR cost more low, property can more good. comparison hot molding TPO, TPU or 者PVC film, material tool has more good pellets property (无论 is spray coating also is RIM), soft/flexible and more low cost, meanwhile can decrease/reduce and 雾化. for/regarding table/sheet sheet/plate this category of tool has 100% PUR system product, can through in hard PUR底层 upper soft PUR table/sheet 皮进行 manufacturing, 而Dow new generation Spectrim RL 700 series low density RIM(LD-RRIM) resin can used for manufacturing.
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