平行雙螺桿造粒機(jī)的料筒和螺桿均按積木式原理設(shè)計(jì),可按需要進(jìn)行不同組合。采用電加熱和水冷卻自動(dòng)控制機(jī)筒溫度,并配有強(qiáng)制喂料,真空排氣和不停車換網(wǎng)裝置。
本發(fā)明的目的在于提供一種特種絕緣耐低溫海底電纜料,克服目前現(xiàn)有海底電纜料的絕緣、耐低溫方面的缺陷。主要配方為:高密度聚乙烯100份,三元乙丙橡膠20~30份,有機(jī)硅樹(shù)脂改性聚酯樹(shù)脂5~10份,阻燃劑25~35份,相容劑5~10份,潤(rùn)滑劑1~2份,交聯(lián)劑0.1~1份。本發(fā)明專利制備的海底電纜料,添加EPDM和有機(jī)硅樹(shù)脂改性的聚酯樹(shù)脂,能提高電纜的耐寒性能,提高材料的沖擊性能,同時(shí)本身有機(jī)硅樹(shù)脂還具有阻燃的特點(diǎn),可以降低阻燃劑的添加量,減少材料本身的性能損失;本發(fā)明制備得到的海底電纜料,采用納米硅樹(shù)脂與微膠囊進(jìn)行復(fù)配,添加量大幅下降,阻燃性能不下降,同時(shí)避免了傳統(tǒng)的無(wú)機(jī)阻燃劑添加量大的問(wèn)題。
Abstract: The invention aims to provide a special insulating low temperature resistant submarine cable material which overcomes the defects of the existing submarine cable material in terms of insulation and low temperature resistance. The submarine cable material mainly comprises 100 parts of high density polyethylene, 20 to 30 parts of ethylene-propylene-diene rubber, 5 to 10 parts of organic silicon resin modified polyester resin, 25 to 35 parts of a fire retardant, 5 to 10 parts of a compatilizer, 1 to 2 parts of a lubricant, and 0.1 to 1 part of a cross-