HIPS ndi chidule cha utomoni wa polystyrene wosagwedezeka ndi kugwedezeka, zinthu zazikulu zopangira ndi styrene, zokhala ndi kulimba kwambiri, kukana kugwedezeka kwambiri, kukhazikika kwa mawonekedwe, zosavuta kupanga ndi kukonza ndi zina zambiri, zitha kugwiritsidwa ntchito kwambiri pazida zapakhomo, zida ndi zida, zoseweretsa,phukusi lotayidwa, malo omanga. Kukana kwa styrene kugwedezeka ndi kofooka, ndipo zinthu zake zimakhala zofooka komanso zosweka mosavuta chifukwa cha kugundana. Kuwonjezera tinthu ta raba ta styrene butadiene ku styrene kungathandize kwambiri kukana kwake kugwedezeka, ndipo tinthu ta raba ta butadiene tomwe timagwiritsidwa ntchito kwambiri ndi butadiene, yomwe ili ndi kukana kwabwino kwambiri kugwedezeka.

Pakadali pano pali njira ziwiri zopangira polystyrene yosagonja ku impact, zomwe ndi njira yosakaniza ndi njira ya graft copolymerisation. Njira yosakaniza, choyamba, butadiene ndi styrene osakaniza molingana ndi kusakaniza, kenako osakanizawo mu extruder amasakanikirana mofanana, kutulutsa filimu yopyapyala kuziziritsa, kenako n’kudula muchiunomagawo okhala ndi kumeta tsitsi, ndondomekoyi iyenera kusamala kwambiri kuti chisakanizocho chisakanizidwe mofanana.

Mu njira ya graft copolymerisation, tinthu ta butadiene timasungunuka mu styrene monomer, ndipo copolymerisation reaction imachitika mothandizidwa ndi catalyst peroxide, ndipo copolymerisation product imayikidwa mu extruder kuti ipangitse granulation. Mwachizolowezi, pulasitiki ya HIP nthawi zambiri ndi resin ya ABS pazinthu zowonjezera, zinthu za HIPS ndizotsika mtengo kuposa resin ya ABS, koma mawonekedwe a makina ndi otsika kuposa resin ya ABS, makampani omanga adzadalira mtengo wa msika wonse wogula, kotero mitengo ya pulasitiki ya HIPS imasinthasintha ndi mtengo waABSNgati mitengo ya ABS ili yokwera, izi zipangitsa kuti msika wa HIPS ufunike, ndithudi, zotsatira za HIPS Mitengo ya pulasitiki ndiyo chinthu chachikulu chomwe chimapangitsa kuti zinthu za styrene ziyambe kukhazikika, kufunikira kwa styrene komwe kukubwera ndi kwakukulu, mtengo wake ndi wokhazikika. Pakapita nthawi, mphamvu zopangira polypropylene chaka chino ndizochepa, ndipo kupanga zida chaka chamawa kukuyembekezeka kuchedwa, mawonekedwe onse, kupezeka kwa katundu sikukwanira, koma zaka ziwiri zapitazi kufunikira kwa downstream kunachepa, mawonekedwe onse, msika ukuyembekezeka kukwera, koma wokhazikika. Izi zikusonyeza kuti mtengo wake ulibe mphamvu yabwino. M'zaka ziwiri zapitazi, kufunikira kwa msika wa zida zapakhomo ku China kunayamba kuchepa pang'onopang'ono, koma kutengera deta yayikulu, ukadaulo wanzeru zopanga, msika wotsogola ukhoza kuyambitsa nyengo ya mafunde, yomwe idzayendetsa bwino msika wa zopangira, mbali yochepa yofunikira ndi yovuta kukhala ndi kusintha kwakukulu, kotero mbali yofunikira ndi yoipa.