TPU (Thermoplastic polyurethanes) chinhu chiri pakati perabha nepurasitiki.Izvo zvinhu zvinodzivirira kuoiri nemvura uye zvine zvakanakisa kutakura-kutakura uye kukanganisa kuramba.TPU inzvimbo ine hushamwari isiri-chepfu polymer zvinhu.Tpu zvinhu zvine mabhenefiti epamusoro elasticity yerabha uye kugadzirisa kuita kwepurasitiki.Iyo haidi vulcanization uye inogona kugadziriswa neyakajairika thermoplastic molding michina.Zvichitaurwa zviri nyore, thermoplastic elastomer tpu ine thermoformed uye inogona kugadzirwa uchishandisa majekiseni ekuumba majekiseni, extruders, blowing molding michina.Zvimedu uye zvakasara zvine 100% kushandiswazve, iyo mbishi yesarudzo yekutsiva PVC, rabha uye silicone uye inotonga indasitiri yerabha nemapurasitiki.

Rubha: Rubha i organic polymer ine huremu hwemazana ezviuru.Vulcanization kurapwa inodiwa kuchengetedza yakakwira elasticity mutembiricha renji -50 kusvika 150°C. Yakaderera elastic modulus, 3 mirairo yehukuru yakaderera pane yakajairika zvinhu, deformation yakakura, elongation inogona kusvika 1000% (general zvinhu zvisingasviki 1%), kupisa kunoburitswa panguva yekutambanudza, uye elasticity inowedzera nekupisa, izvo zvakare yakaderera pane iyo yezvinhu zvakajairika pane zvinopesana.

Musiyano uripo pakati peTPU nerabha:

1. Rubber inenge yakapfava, uye kuoma (0-100a) yetpu zvinhu zvakapamhama zvikuru pakati perabha nepurasitiki;

2. Pfungwa ye elastomer yakakura kwazvo, tpu inonziwo thermoplastic rubber (tpr), uye rubber kazhinji inoreva thermosetting rubber;

3. Nzira dzekugadzirisa dzakasiyana.Rubha inogadziriswa nekusanganisa rubber, nepo TPU inowanzogadziriswa neextrusion;

4. Zvinhu zvacho zvakasiyana.Rubha kazhinji inoda kuwedzera zvakasiyana-siyana zvekuwedzera uye inoda vulcanized kuti isimbiswe, nepo tpu kuita kwe thermoplastic elastomers kwakanaka kwazvo;

5. Thermoplastic elastomer tpu ine mutsara chimiro uye inobatanidzwa mumuviri nehydrogen bonding.Mabhondi eHydrogen anotyoka pakupisa kwakanyanya uye ari epurasitiki.Rubha inosanganiswa nemakemikari uye kwete thermoplastic.

6. TPU plastiki zvinhu ine yakanakisa kupfeka kuramba, iyo inodarika kashanu iyo yerabha yechisikigo, uye ndechimwe chezvinhu zvinofarirwa zvezvigadzirwa zvisingapfeki.