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價(jià) 格:11
現(xiàn)貨供應(yīng)利安德巴塞爾原廠PP/TPO系列材料:
Pro-fax HF500J PP LyondellBasell Industries
Pro-fax HF500T PP LyondellBasell Industries
Pro-fax HL231R PP LyondellBasell Industries
Pro-fax HL232R PP LyondellBasell Industries
Pro-fax HL239S PP LyondellBasell Industries
Pro-fax HL241T PP LyondellBasell Industries
Pro-fax HL342J PP LyondellBasell Industries
Pro-fax HL343J PP LyondellBasell Industries
Pro-fax HL343K PP LyondellBasell Industries
Pro-fax HL344S PP LyondellBasell Industries
Pro-fax HL345P PP LyondellBasell Industries
Pro-fax HL347M PP LyondellBasell Industries
Pro-fax HL348J PP LyondellBasell Industries
Pro-fax HL349N PP LyondellBasell Industries
Pro-fax HL350J PP LyondellBasell Industries
Pro-fax HL351P PP LyondellBasell Industries
Pro-fax HL352N PP LyondellBasell Industries
Pro-fax HL451H PP LyondellBasell Industries
Pro-fax HL451J PP LyondellBasell Industries
Pro-fax HL453M PP LyondellBasell Industries
Pro-fax HL455M PP LyondellBasell Industries
Pro-fax HL457L PP LyondellBasell Industries
Pro-fax HL458H PP LyondellBasell Industries
Pro-fax HL459G PP LyondellBasell Industries
Pro-fax HL561C PP LyondellBasell Industries
Pro-fax HL561K PP LyondellBasell Industries
Pro-fax HL781E PP LyondellBasell Industries
Pro-fax HL781G PP LyondellBasell Industries
Pro-fax HL782K PP LyondellBasell Industries
Pro-fax HL782L PP LyondellBasell Industries
Pro-fax HL783H PP LyondellBasell Industries
Pro-fax HP403G PP LyondellBasell Industries
Pro-fax HP501S PP LyondellBasell Industries
Pro-fax HP520L PP LyondellBasell Industries
Pro-fax HP523M PP LyondellBasell Industries
Pro-fax HP555J PP LyondellBasell Industries
Pro-fax HP556J PP LyondellBasell Industries
Pro-fax HP564S PP LyondellBasell Industries
Pro-fax HP609K PP LyondellBasell Industries
Pro-fax HP640H PP LyondellBasell Industries
Pro-fax HP643H PP LyondellBasell Industries
Pro-fax HP648R PP LyondellBasell Industries
以上型號(hào)!其他型號(hào)請(qǐng)致電詳詢!
PP材料:
聚丙烯采用齊格勒-納塔催化劑使丙烯催化聚合而得,它是分子鏈節(jié)排列得很規(guī)整的結(jié)晶形等規(guī)聚合物。聚丙烯英文名為Polypropylene,簡(jiǎn)稱PP(以下或簡(jiǎn)稱PP),俗稱百折膠。聚丙烯按其結(jié)晶度可以分為等規(guī)聚丙烯和無(wú)規(guī),等規(guī)聚丙烯為高度結(jié)晶的熱塑性樹脂,結(jié)晶度高達(dá)95%以上,分子量在8~15萬(wàn)之間,以下介紹的聚丙烯主要為等規(guī)聚丙烯。而無(wú)規(guī)聚丙烯在室溫下是一種非結(jié)晶的、微帶粘性的白色蠟狀物,分子量低(3000~10000),結(jié)構(gòu)不規(guī)整缺乏內(nèi)聚力,應(yīng)用較少。
PP聚丙烯的成型特性:
1.結(jié)晶料,吸濕性小,易發(fā)生融體破裂,長(zhǎng)期與熱金屬接觸易分解。
2.流動(dòng)性好,但收縮范圍及收縮值大,易發(fā)生縮孔,凹痕,變形。
3.冷卻速度快,澆注系統(tǒng)及冷卻系統(tǒng)應(yīng)緩慢散熱,并注意控制成型溫度,模具溫度低于50度時(shí),塑件不光滑,易產(chǎn)生熔接不良,流痕,90度以上易發(fā)生翹曲變形。
4.塑料壁厚須均勻,避免缺膠,尖角,以防應(yīng)力集中。