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FRP复合管
所属分类:玻璃钢管道
发布日期:2016-8-25
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产品简介:玻璃纤维增强的热固性树脂和热塑性塑料,既有 FRP 组份的结构牢固性,又有热塑性塑料的耐化学性。本文即旨于介绍这类 PVC—FRP 复合材料的研究及其在管生产中的应用。在此应用中,热塑性塑料是用作密封衬管,把它与高强纤...
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玻(bo)璃纤(xian)维(wei)(wei)增(zeng)强的(de)(de)(de)热(re)固(gu)性(xing)树(shu)脂(zhi)(zhi)(zhi)(zhi)和热(re)塑(su)(su)性(xing)塑(su)(su)料(liao)(liao),既有(you) FRP 组(zu)份的(de)(de)(de)结(jie)构(gou)牢固(gu)性(xing),又有(you)热(re)塑(su)(su)性(xing)塑(su)(su)料(liao)(liao)的(de)(de)(de)耐化学性(xing)。本(ben)文即(ji)旨于介绍这(zhei)类 PVC—FRP 复合材(cai)料(liao)(liao)的(de)(de)(de)研究及(ji)其在管(guan)生产中(zhong)的(de)(de)(de)应(ying)用(yong)(yong)(yong)(yong)(yong)。在此(ci)应(ying)用(yong)(yong)(yong)(yong)(yong)中(zhong),热(re)塑(su)(su)性(xing)塑(su)(su)料(liao)(liao)是(shi)用(yong)(yong)(yong)(yong)(yong)作密封(feng)衬管(guan),把(ba)它与高(gao)强纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)的(de)(de)(de)外壳结(jie)合在一起。已研制(zhi)出一种适(shi)用(yong)(yong)(yong)(yong)(yong)于纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)的(de)(de)(de)特殊间苯(ben)型聚酯(zhi)树(shu)脂(zhi)(zhi)(zhi)(zhi),以保(bao)证与 PVC 有(you)很好粘(zhan)接。从(cong)经(jing)济效益上(shang)看,在所有(you)的(de)(de)(de)压力范围里,纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)的(de)(de)(de) FRP,缠(chan)(chan)(chan)(chan)在薄壁的(de)(de)(de) PVC 管(guan)上(shang),成(cheng)本(ben)可比全 PVC 管(guan)适(shi)当的(de)(de)(de)降低(di)。特别是(shi)较大(da)的(de)(de)(de)管(guan)径及(ji)较高(gao)压力范围时(shi),成(cheng)本(ben)低(di)的(de)(de)(de)优越(yue)性(xing)就更显著了(le)。纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao) PVC 复合管(guan)的(de)(de)(de)性(xing)能(neng)与成(cheng)本(ben)的(de)(de)(de)关(guan)系也业已确定。由于采用(yong)(yong)(yong)(yong)(yong)了(le) E—105树(shu)脂(zhi)(zhi)(zhi)(zhi)做(zuo)胶(jiao)接层,能(neng)使(shi)纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao) PVC 复合管(guan)进(jin)一步增(zeng)强,用(yong)(yong)(yong)(yong)(yong)通用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)聚酯(zhi)、乙烯基酯(zhi)树(shu)脂(zhi)(zhi)(zhi)(zhi)或(huo)环氧树(shu)脂(zhi)(zhi)(zhi)(zhi)进(jin)行(xing)纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)。纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)树(shu)脂(zhi)(zhi)(zhi)(zhi)要(yao)依据(ju)最终使(shi)用(yong)(yong)(yong)(yong)(yong)时(shi)的(de)(de)(de)环境条件来选择。另外改进(jin)性(xing)能(neng),还可通过在树(shu)脂(zhi)(zhi)(zhi)(zhi)中(zhong)添加填料(liao)(liao)或(huo)在纤(xian)维(wei)(wei)缠(chan)(chan)(chan)(chan)绕(rao)(rao)(rao)(rao)(rao)层中(zhong)添加砂子来实现,采取这(zhei)种办法,发现成(cheng)本(ben)增(zeng)加不大(da),而(er)(er) FRP 壁厚可增(zeng)加两倍(bei)多,从(cong)而(er)(er)极大(da)地改进(jin)了(le)管(guan)的(de)(de)(de)刚性(xing)和冲(chong)击强度。


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