Kev tsim cov txheej txheem ntawm cellulose ethers feem ntau suav nrog cov txheej txheem roj thiab cov txheej txheem ua kua theem. Cov txheej txheem roj muaj lub sijhawm luv luv, muaj peev xwm ntau lawm, tus nqi qis thiab siv zog; Cov txheej txheem ua kua theem muaj cov tshuaj tiv thaiv zoo sib xws, tab sis tus nqi siab thiab siv zog.
Tam sim no, Tuam Tshoj cov tshuaj loj-qib cellulose ether cov khoom lag luam feem ntau suav nrog Shandong Heda, Tai'an Ruitai, Shandong Everbright, Shanhe Pharmaceutical Auxiliary, Huzhou Zhanwang thiab lwm lub tuam txhab. Shandong Heda Group Co., Ltd. tau tsim nyob rau hauv 1992. Nws yog ib tug ecological composite pawg tuam txhab uas txuas cov upstream thiab downstream industrial chains ntawm cellulose ethers thiab khiav los ntawm cov teb ntawm cov nqaij cog, cog capsules, thiab lwm yam. Nws cov lag luam npog ib nrab- mus rau high-end cellulose ethers, cog capsules, cog nqaij, cov khoom siv tshuaj, trimethyl orthoacetate thiab diacetone acrylamide thiab lwm yam khoom. Shandong Heda cov khoom lag luam cellulose ether yog cov khoom tsis yog-ionic cellulose ethers, suav nrog hydroxypropyl methylcellulose ether (HPMC), hydroxyethyl methylcellulose ether (HEMC), ethyl cellulose ether (EC), hydroxyethyl cellulose ether (HEC) thiab ze li ntawm 100 ntau yam khoom. Hauv kev kho mob, lawv tuaj yeem siv los tsim cov tshuaj ntsiav tshuaj (HPMC), txheej (HPMC) thiab cov khoom tso tawm (HPMC).