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2018-03-10
日常生活中常常提到抗紫(zi)外線(xian)(xian)(xian)(xian)塑(su)(su)膠(jiao)原料,抗紫(zi)外線(xian)(xian)(xian)(xian)PP,抗紫(zi)外線(xian)(xian)(xian)(xian)PC,抗紫(zi)外線(xian)(xian)(xian)(xian)ABS等一系列(lie)抗紫(zi)外線(xian)(xian)(xian)(xian)塑(su)(su)膠(jiao)原料,紫(zi)外線(xian)(xian)(xian)(xian)會(hui)容(rong)易讓一些塑(su)(su)膠(jiao)產品快(kuai)速老化,可(ke)許多植(zhi)物(wu)卻(que)離(li)不(bu)開紫(zi)外線(xian)(xian)(xian)(xian)。由(you)于(yu)紫(zi)外線(xian)(xian)(xian)(xian)的(de)缺乏,許多動植(zhi)物(wu)都會(hui)發生變化。例(li)如:蜜(mi)蜂不(bu)能采蜜(mi)、某些植(zhi)物(wu)徒長,茄子和鮮花(hua)的(de)顏色改變..
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2018-03-10
開發可自然降(jiang)解的(de)塑(su)料制(zhi)品(pin)來替代(dai)普(pu)遍使用(yong)(yong)的(de)普(pu)通塑(su)料制(zhi)品(pin)曾經成(cheng)為上世紀90年(nian)代(dai)的(de)熱點(dian),但是當(dang)時降(jiang)解塑(su)料因為成(cheng)本和技(ji)術問題,發展緩慢。不過,近日日本研究(jiu)人(ren)員(yuan)(yuan)研發出一款耐高(gao)(gao)溫塑(su)料薄膜,較高(gao)(gao)可耐受425攝(she)氏度高(gao)(gao)溫。據(ju)報(bao)道,日本科學技(ji)術振(zhen)興(xing)機構等(deng)研究(jiu)人(ren)員(yuan)(yuan)利用(yong)(yong)大腸桿菌(jun)...