HTPB, inozivikanwawo se hydroxyl-terminated polybutadiene, ipolymer inozivikanwa mumaindasitiri akasiyana siyana nekuda kweiyo yakasarudzika zvivakwa uye kuita zvakasiyana. Munyaya ino, isu tichaongorora akasiyana mashandisirwo uye mashandisiro eHTPB.
HTPB irabha rekugadzira rakagadzirwa kubva kubutadiene uye shoma shoma yedivinylbenzene. Izvo zvinokonzeresa zvinhu zvinoratidzwa neiyo hydroxyl (-OH) termini, iyo inopa akawanda ezvivakwa zvinodiwa kune polymer.
Imwe yeanonyanya kukosha kushandiswa kweHTPB iri mumunda we rocket propellants. Iyi polymer inoshandiswa zvakanyanya sechinhu chakakosha mukugadzirwa kwakasimba rocket mota mafuta. HTPB-based propellants inopa akawanda mabhenefiti pamusoro pedzimwe nzira. Aya mapropellants haanyanyi kunetseka nekuvhunduka uye kuvhunduka, kuve nechokwadi chekuwedzera kuchengetedzeka panguva yekubata uye yekufambisa. Uye zvakare, ivo vanoratidza yakanakisa michina zvimiro, seyakanaka elasticity uye kuchinjika, zvichibvumira iyo propellant kumirisana nekumanikidza kwakanyanya uye kukurumidza panguva yekupisa. Pamusoro pezvo, HTPB-based propellants ine yakakwira yakanangana nekukurudzira, iyo inobatsira kuwana hukuru hwekusundidzira uye kugona mu rocket propulsion.
Kuwedzera kune aerospace application, HTPB inoshandiswa kugadzira akasiyana elastomers uye sealants. Nekuda kwekunaka kwayo kwemakemikari kuramba, HTPB inowanzoshandiswa sebhainda mukugadzira zvinonamira uye machira. Kugona kwayo kuomerera kune akasiyana ma substrates kunoita kuti ive yekutanga sarudzo yezvikumbiro zvinoda kubatana kwakasimba. Pamusoro pezvo, HTPB-based sealants inogona kushandiswa kuvharisa mhepo- uye mvura-yakasimba mumaindasitiri akadai sekuvaka uye mota. Aya sealants anozivikanwa nekusimba uye kuramba kune tembiricha yakanyanyisa uye nehutsinye hwemamiriro ekunze.
Imwe nzvimbo apoHTPB inoita basa rakakosha mukugadzirwa kwezvinhu zvinochinjika furo. Iyi polymer inoshandiswa kugadzira mafuro anoshandiswa mumaindasitiri akasiyana siyana, anosanganisira mota, aerospace uye insulation. Mafuro akavakirwa paHTPB ane akanakisa cushioning zvivakwa uye akanakira kushandiswa mumatiresi, macushion ezvigaro uye zvinhu zvinobata zvinovhundutsa. Iko kushandiswa kwakasiyana-siyana kweHTPB kunobvumira kugadzirwa kwemafuro eakasiyana densities uye kuomarara kusangana nezvinodiwa zvakasiyana zvekushandisa.
Indasitiri yekudzivirira inobatsirawo kubva mukushandiswa kweHTPB pakugadzirwa kwezvinhu zvinoputika.HTPB zvinoputika zvinoshandiswa mumissile warheads, artillery shells uye akasiyana emamwe maordnance. Izvi zvinoputika zvine zvimiro zvinodikanwa senge simba rakanyanya kubuda, kugadzikana uye kusanzwa nekukanganisa, zvichiita kuti zvikodzere kushandiswa kwechiuto.
Uye zvakare, HTPB inoshandiswa mukugadzirwa kwehunyanzvi hwekupfeka uye pendi. Aya machira anoshandiswa zvakanyanya mumaindasitiri uko kuchengetedzwa kubva mukuora uye kuratidzwa kwezvakatipoteredza kwakakosha, semafuta uye gasi, maindasitiri emugungwa uye emotokari. HTPB's inherent resistance kumakemikari uye nehutsinye mamiriro anoita kuti coating inopa kwenguva refu, yakavimbika kudzivirira.
Muchidimbu, HTPB i polymer inoshanda zvakasiyana-siyana inogona kushandiswa mumhando dzakasiyana dzemaindasitiri. Kubva pamaroketi propellants kusvika kune sealants, furo, zvinoputika uye machira, HTPB yakasarudzika zvivakwa inoita kuti ive sarudzo yakanakisa kune akasiyana maapplication. Sezvo tekinoroji ichienderera mberi, kudiwa kweHTPB kunotarisirwa kuramba kuchikura uye zvikumbiro zvitsva zveiyi inoshamisa polymer zvichabuda.
Nguva yekutumira: Nov-01-2023