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今天, 聊聊TPE is what this difficult flame retardant

Date: 2020-05-17 10:01 Views: 2057 Source: Internet

         thermoplastic property elastomer TPE(Thermoplastic Elastomer), also 称人造橡胶 or combined formed 橡胶. its product tool 备传统 crosslinked 硫化橡胶 high elastic property, resistant aging, oil resistant property excellent property can, meanwhile also tool 备普通 plastics processing 方便, processing methods features.

 

        TPE main/primary 由二部 separation formed, is plastics, as is versus, is as is dispersion versus. usually need and soft or increase agent and combined. agent and 一 辅助 additives is can less. another is reduce cost or improve/increase certain property can, 一 无 machine filler by add. according to material formed can separation is: styrene type (SBS, SIS, SEBS, SEPS), type (TP0, TPV), di type (TPB, TPI), chlorine ethylene type (TPVC, TCPE), ester type (TPU), ester type (TPEE), amine type (TPAE), has machine fluorine type (TPF), has machine silicon type and ethylene type and other, covering in combined formed and combined formed resin has field/area. lower 面列举几 types Common TPE formed formed separation.

 

        但TPE thermoplastic property elastomer formulation system separation more, due to separation structure property 质差异, mechanism 不明确, to flame retardant belt/tape small difficult degree, in use process in 也会存 in very large safety 隐患, this to TPE product use belt/tape 一定 局限 property. that 么, TPE flame retardant can can to which difficulty/challenge 呢?

         flame retardant selection difficult degree large

         flame retardant and versus property 差. elastomer in flame retardant add amount large 时, especially is in flame retardant in, TPS elastic property modulus, flexibility property, force property can, wear resistance can large degree decline, melt flow property 变差, elastomer difficult molding, surface easy flame retardant 迁移, formed ring 境.

         flame retardant mechanism 不明确

        TPS system in main/primary is 橡胶, polyolefin resin, increase agent and filling material more versus mixed combined structure. polyolefin resin flame retardant has comparison formed formulation and 实例. 但SEBS and polyolefin type PP, PE flame retardant mechanism its 实并不 same, types flame retardant need meanwhile flame retardant multiple plastics separation difficult degree relatively large.

         increase agent reduce flame retardant property

        TPS is reduce hardness is more and, need add increase agent (白油), usually 以26#, 32#白油, 70#白油 this types is 主. due to types product oxygen index (LOI) and flow property 差异, meanwhile type material 质天然 easy property large large reduce elastomer flame retardant property, therefore in production low hardness product how to solution increase agent and flame retardant 关系, how to selection types type important.

 

        基于 above can can to difficulty/challenge, flame retardant TPE in processing process in can can to issues also has which? versus solutions also is how to 呢?

        线材 surface light slip

        TPE线材 processing 经常会发生, generally is due to temperature degree adjustment good and flame retardant mixed combined non-uniform formed, has can can is 选模不 positive 确引起, 当然跟材 material formulation has very large 关系. has experience processing 厂商会 troubleshooting equipment issues, 经 反复 debugging can to combined temperature degree, selection combined 适 材 material, and specific formulation need engineering 师们慎 heavy. 建议跟 Raw Materials supply more 沟通交流, 知道材 material material property and processing precautions, for material, semi 功倍!TPU线材 versus for TPE线材 surface processing more good.

        线材 surface 析出

         currently is has 哪家 材 material can ensure full 不析出, specific performance is: surface 发白, or formed 雾状. in technology 说, this issues also has solution. 建议客户 in selection most good selection surface light micro 发白 材 material, this type of 析出不会 effect/influence it physical properties and power/electricity property can. surface 冒油 材 material need use, in use in easy generate 脱落, 掉皮. another 析出也 has light heavy separation, good material it is light micro, but also in short inner is easy 发生, 就算发生 use light light scratch good.

         surface and 掉皮掉胶

        刮白 is material add has PP and PE formed 份引起, can 改进. has separation 厂家做 to product 不会括白, 但TPE ratio TPU difficult degree large. if 掉皮掉胶 that water is very generally, this need also is, formulation! process!

         processing difficult degree

         elastomer performance in processing speed degree comparison slow, ratio PVC need slow 50% left right. temperature degree good adjustment, machine need very more material, add upper material front also need machine, can small. this is can 避免. in production in has also 会出现 front production positive 常, rear processing has issues 事情发生. in this need 说明一点, off-brand material has 风险, use 需谨慎.

 

         flame retardant TPE/TPU is types very 独特 材 material, TPE/TPU flame retardant difficult still large in material selection, formulation, process more as. 总体而言, selection liquid flame retardant, reduce hardness meanwhile improve/increase flame retardant property, decrease/reduce powder flame retardant add amount, can improve/increase product transparent property, utilizing compatibilizer improve/increase flame retardant and versus property, improvement 析出并 large improves mechanical properties; process upper using/adopting screw distribution improve/increase flame retardant in system in dispersion, improve/increase flame retardant efficiency, improvement appearance; using/adopting new type has machine silicon flame retardant, poly versus flame retardant mechanism, formed resistant oxidation property strong/high understanding 炭层, improve/increase flame retardant efficiency.