English
Hujayra madaniyati juda nozik ishdir. Atrof-muhitning steril va toksik bo'lmaganligini va harorat mos kelishini, shuningdek, etarli ovqatlanishni ta'minlash kerak. Hujayra sarf materiallari bu ideal sharoitlarga erishish uchun zaruriy shart bo'lib, ularni tanlash va ishlatish hayotiy ahamiyatga ega. cell fabrikasi keng ko'lamli hujayra madaniyati ishlari uchun keng tarqalgan sarflanadigan materialdir. Uning ishlab chiqarish materiallarining xususiyatlari qanday?
Hujayra fabrikasining materiallari asosan tibbiy butilkalar, shpritslar ishlab chiqarish uchun ishlatiladigan tibbiy polistirol (inglizcha: Polistirol, PS deb ataladi) hisoblanadi. tovoqlar va qadoqlash materiallari. Uning dien va akrilonitril bilan sopolimeri odatda l1#iS qatroni sifatida tanilgan. U faqat mukammal mexanik kuch va ishlov berish ko'rsatkichlariga ega. U adsorbsion turdagi sun'iy buyrak qobiqlarini tayyorlash uchun ishlatilishi mumkin. Bemorning qonidagi ortiqcha dori vositalari va ba'zi patogen antikorlar va immun komplekslar kabi zaharli moddalarni olib tashlash uchun uni g'ovakli karbonlangan adsorbsion smolaga aylantirish mumkin.
Polistirol materiali quyidagi xususiyatlarga ega:
1. Tekstura qattiq va zarba kuchi past; polistirolning tasodifiy konfiguratsiyasi yaxshi porloq, yuqori yorug'lik o'tkazuvchanligi va yaxshi rangga ega.
2. Yumshatish harorati 80 ° C. 80 ° C dan past haroratda u shishadek qattiqdir. 80 ° C dan yuqori harorat yumshoqroq ob'ektga aylanadi. U kauchukga o'xshash xususiyatlarga ega. Uni yuqori haroratlarda ishlatishdan saqlaning.
3. Yaxshi kalıplama ishlashi, foydalanish harorati oralig'ida tayyor mahsulot kichik qisqarish va deformatsiyaga va barqaror o'lchamlarga ega; yaxshi suvga chidamlilik, haroratning oshishi bilan kimyoviy barqarorlik pasayadi; noorganik kislotalar, organik kislotalar, tuz eritmalari va ishqorlarning ma'lum konsentratsiyalari uchun , Spirtli ichimliklar, o'simlik moylari va boshqalar yaxshi qarshilikka ega va uzoq vaqt davomida quyoshga qo'yilganda asta-sekin sarg'ayadi, devitrifiyalanadi va yorilib ketadi.
4. Yog'lar va hasharotlarga qarshi vositalar bilan aloqa qilishda ko'pincha yorilish, rang o'zgarishi va yopishqoq erish paydo bo'ladi va yorug'lik, kislorod va issiqlik ta'sirida qarish va sarg'ayishga moyil bo'ladi.
5. Xloroform, diklorometan, toluol, butil asetat va boshqalar kabi organik erituvchilarda oson eriydi. Saqlash vaqtida yuqoridagi erituvchilar bilan aloqa qilishdan saqlaning.
Yuqorida hujayra zavodi ishlatiladigan materiallarning xususiyatlari haqida. Polistirol hujayra sarf materiallari uchun tez-tez ishlatiladigan materialdir. Masalan, hujayra madaniyati plitalari, hujayra madaniyati kolbalari, eliza plitalari yoki kimilyuminestsent plitalar hujayra o'sishi ehtiyojlarini qondirish uchun ushbu materialdan foydalanadi.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.