復合材料特性：

1、復(fu)合材(cai)(cai)(cai)(cai)料的(de)比(bi)(bi)強(qiang)(qiang)(qiang)度(du)(du)(du)和(he)比(bi)(bi)剛度(du)(du)(du)較(jiao)高(gao)。材(cai)(cai)(cai)(cai)料的(de)強(qiang)(qiang)(qiang)度(du)(du)(du)除以密(mi)度(du)(du)(du)稱(cheng)為比(bi)(bi)強(qiang)(qiang)(qiang)度(du)(du)(du)；材(cai)(cai)(cai)(cai)料的(de)剛度(du)(du)(du)除以密(mi)度(du)(du)(du)稱(cheng)為比(bi)(bi)剛度(du)(du)(du)。這(zhe)兩個參量(liang)是(shi)衡量(liang)材(cai)(cai)(cai)(cai)料承載能力(li)的(de)重(zhong)(zhong)要指標。比(bi)(bi)強(qiang)(qiang)(qiang)度(du)(du)(du)和(he)比(bi)(bi)剛度(du)(du)(du)較(jiao)高(gao)說明(ming)材(cai)(cai)(cai)(cai)料重(zhong)(zhong)量(liang)輕，而(er)強(qiang)(qiang)(qiang)度(du)(du)(du)和(he)剛度(du)(du)(du)大。這(zhe)是(shi)結(jie)構(gou)(gou)設(she)計，特(te)別是(shi)航空、航天結(jie)構(gou)(gou)設(she)計對材(cai)(cai)(cai)(cai)料的(de)重(zhong)(zhong)要要求。現代飛機、導(dao)i彈和(he)衛i星(xing)等機體結(jie)構(gou)(gou)正逐漸擴大使用(yong)纖維增(zeng)強(qiang)(qiang)(qiang)復(fu)合材(cai)(cai)(cai)(cai)料的(de)比(bi)(bi)例。

2、 復(fu)合(he)材(cai)(cai)料(liao)(liao)的(de)(de)力學(xue)性能(neng)(neng)可以設計，即可以通過(guo)選擇合(he)適的(de)(de)原材(cai)(cai)料(liao)(liao)和合(he)理的(de)(de)鋪層(ceng)(ceng)形(xing)式，多(duo)(duo)(duo)功(gong)能(neng)(neng)靜(jing)(jing)音(yin)粉粹(cui)(cui)機(ji)廠(chang)商價格，使復(fu)合(he)材(cai)(cai)料(liao)(liao)構件或復(fu)合(he)材(cai)(cai)料(liao)(liao)結構滿(man)足使用要求(qiu)。例(li)如，在(zai)(zai)某種鋪層(ceng)(ceng)形(xing)式下(xia)，材(cai)(cai)料(liao)(liao)在(zai)(zai)一(yi)方(fang)向受(shou)拉而伸長時，在(zai)(zai)垂直于受(shou)拉的(de)(de)方(fang)向上材(cai)(cai)料(liao)(liao)也伸長，這與常用材(cai)(cai)料(liao)(liao)的(de)(de)性能(neng)(neng)完全不同。又如利用復(fu)合(he)材(cai)(cai)料(liao)(liao)的(de)(de)耦合(he)效(xiao)應，多(duo)(duo)(duo)功(gong)能(neng)(neng)靜(jing)(jing)音(yin)粉粹(cui)(cui)機(ji)廠(chang)家價格，在(zai)(zai)平板(ban)模上鋪層(ceng)(ceng)制(zhi)作層(ceng)(ceng)板(ban)，滄州多(duo)(duo)(duo)功(gong)能(neng)(neng)靜(jing)(jing)音(yin)粉粹(cui)(cui)機(ji)，加溫固(gu)化(hua)后，多(duo)(duo)(duo)功(gong)能(neng)(neng)靜(jing)(jing)音(yin)粉粹(cui)(cui)機(ji)費用，板(ban)就自(zi)動(dong)成為所需要的(de)(de)曲(qu)板(ban)或殼體。

復(fu)合(he)(he)材料(liao)的成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)方法(fa)按(an)基(ji)體材料(liao)不同各異。樹脂(zhi)基(ji)復(fu)合(he)(he)材料(liao)的成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)方法(fa)較多，有手(shou)糊(hu)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、噴射(she)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、纖(xian)維纏繞成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、模壓(ya)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、拉擠成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、RTM成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、熱(re)壓(ya)罐成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、隔(ge)膜成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、遷移成(cheng)(cheng)(cheng)(cheng)(cheng) 型(xing)(xing)(xing)(xing)(xing)、反(fan)應注射(she)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、軟膜膨脹成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、沖(chong)壓(ya)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)等(deng)。金屬(shu)基(ji)復(fu)合(he)(he)材料(liao)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)方法(fa)分為固相(xiang)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)法(fa)和液相(xiang)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)法(fa)。前者(zhe)是在低于基(ji)體熔點(dian)溫度下，通過施加(jia)壓(ya)力實現(xian)成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)，包括擴散焊(han)接、粉(fen)末(mo)冶金、熱(re)軋、熱(re)拔、熱(re)等(deng)靜壓(ya)和爆(bao)i炸焊(han)接等(deng)。后者(zhe)是將基(ji)體熔化(hua)后，充填(tian)到增強體材料(liao)中(zhong)，包括傳統鑄造(zao)、真(zhen)空吸(xi)鑄、真(zhen)空反(fan)壓(ya)鑄造(zao)、擠壓(ya)鑄造(zao)及噴鑄等(deng)、陶瓷(ci)基(ji)復(fu)合(he)(he)材料(liao)的成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)方法(fa)主要有固相(xiang)燒(shao)結、化(hua)學(xue)(xue)氣(qi)相(xiang)浸滲成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)、化(hua)學(xue)(xue)氣(qi)相(xiang)沉積成(cheng)(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)等(deng)。

玻纖增強PP的特性

1.玻纖增(zeng)強以后，由于玻纖的加(jia)入，PP的熔融粘度增(zeng)大，流動(dong)性(xing)變差，注(zhu)塑(su)壓力(li)比不加(jia)玻纖的要增(zeng)加(jia)很(hen)多(duo)。

2.玻(bo)(bo)纖增(zeng)強以(yi)后，由于玻(bo)(bo)纖的加(jia)入，PP材料流動性差，增(zeng)強塑(su)料的注塑(su)溫度要比不加(jia)玻(bo)(bo)纖以(yi)前提高10℃-30℃。

3.玻(bo)纖增強以(yi)后(hou)，由于玻(bo)纖和助劑的加入，PP的吸濕性能(neng)大加強，原來純塑料不(bu)吸水的也(ye)會(hui)變得吸水，因此，注塑時(shi)都(dou)要進烘(hong)干。