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　　玻(bo)璃(li)(li)鋼(gang)(FRP)亦稱作GFRP，即纖(xian)維強化(hua)塑(su)料，一般指用(yong)玻(bo)璃(li)(li)纖(xian)維增(zeng)強不飽和(he)聚酯、環氧樹(shu)脂與酚(fen)醛樹(shu)脂基體，以玻(bo)璃(li)(li)纖(xian)維或其制品作增(zeng)強材料的(de)增(zeng)強塑(su)料，稱為玻(bo)璃(li)(li)纖(xian)維增(zeng)強塑(su)料，或稱為玻(bo)璃(li)(li)鋼(gang)，不同于鋼(gang)化(hua)玻(bo)璃(li)(li)。

　　由于所使(shi)用的樹脂品種不(bu)同(tong)，因此有聚酯玻璃鋼(gang)、環氧玻璃鋼(gang)、酚醛玻璃鋼(gang)之別。質輕而硬(ying)，不(bu)導(dao)電(dian)，性(xing)能(neng)穩定，機械強(qiang)度高(gao)，回收(shou)利(li)用少，耐腐蝕。可以代替(ti)鋼(gang)材制造機器零(ling)件(jian)和汽車、船舶(bo)外(wai)殼等。

　　玻(bo)(bo)璃(li)(li)鋼學(xue)名纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)塑(su)(su)料(liao)(liao)(liao)(liao)，俗稱(cheng)FRP(Fiber Reinforced Plastics)，即纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)復(fu)(fu)合塑(su)(su)料(liao)(liao)(liao)(liao)。根據采用的(de)纖(xian)(xian)(xian)維(wei)(wei)(wei)不同分為(wei)玻(bo)(bo)璃(li)(li)纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)復(fu)(fu)合塑(su)(su)料(liao)(liao)(liao)(liao)(GFRP)，碳纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)復(fu)(fu)合塑(su)(su)料(liao)(liao)(liao)(liao)(CFRP)，硼(peng)纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)復(fu)(fu)合塑(su)(su)料(liao)(liao)(liao)(liao)等。它是(shi)(shi)以(yi)(yi)玻(bo)(bo)璃(li)(li)纖(xian)(xian)(xian)維(wei)(wei)(wei)及其制(zhi)品(玻(bo)(bo)璃(li)(li)布、帶、氈、紗等)作(zuo)為(wei)增(zeng)(zeng)強(qiang)(qiang)材(cai)(cai)料(liao)(liao)(liao)(liao)，以(yi)(yi)合成樹(shu)脂作(zuo)基(ji)體(ti)材(cai)(cai)料(liao)(liao)(liao)(liao)的(de)一種復(fu)(fu)合材(cai)(cai)料(liao)(liao)(liao)(liao)。纖(xian)(xian)(xian)維(wei)(wei)(wei)增(zeng)(zeng)強(qiang)(qiang)復(fu)(fu)合材(cai)(cai)料(liao)(liao)(liao)(liao)是(shi)(shi)由增(zeng)(zeng)強(qiang)(qiang)纖(xian)(xian)(xian)維(wei)(wei)(wei)和基(ji)體(ti)組成。纖(xian)(xian)(xian)維(wei)(wei)(wei)(或(huo)晶須)的(de)直徑很(hen)小，一般在(zai)10μm以(yi)(yi)下，缺陷較少又較小，斷裂應變約為(wei)千分之三十以(yi)(yi)內，是(shi)(shi)脆性(xing)(xing)(xing)材(cai)(cai)料(liao)(liao)(liao)(liao)，易(yi)損傷(shang)、斷裂和受(shou)到腐蝕。基(ji)體(ti)相對于(yu)纖(xian)(xian)(xian)維(wei)(wei)(wei)來(lai)說，強(qiang)(qiang)度(du)、模量(liang)都(dou)要(yao)低很(hen)多，但可以(yi)(yi)經受(shou)住大(da)的(de)應變，往(wang)(wang)往(wang)(wang)具有(you)粘(zhan)彈(dan)性(xing)(xing)(xing)和彈(dan)塑(su)(su)性(xing)(xing)(xing)，是(shi)(shi)韌性(xing)(xing)(xing)材(cai)(cai)料(liao)(liao)(liao)(liao)。