CN104109274A - 一种骨架式带状光缆hdpe骨架料的生产工艺 - Google Patents
一种骨架式带状光缆hdpe骨架料的生产工艺 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
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- C08L2207/062—HDPE
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Abstract
一种骨架式带状光缆HDPE骨架料的生产工艺。提供了一种加工方便，适用挤出模头旋转挤出要求的骨架式带状光缆HDPE骨架料的生产工艺。包括以下步骤：1）、在90~94%重量比的HDPE和4~8%重量比的EVA中加入3‰～5‰重量比的4#白油，搅拌6~10分钟；2）、在1）步骤搅拌结束后，加入1‰～1.5‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌8~12分钟；3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为190～200℃，转速控制在45～60r/min，挤出造粒。本发明在HDPE（高密度聚乙烯）和EVA（乙烯-醋酸乙烯酯共聚物）中增加白油，白油可以增加柔性，提高了松套管表面的光滑度，利于成缆；聚丙烯成核剂能加速结晶，适应挤出模头旋转挤出的需要。
Description
技术领域
本发明涉及高分子材料技术领域，尤其涉及一种HDPE骨架式带状光缆料的生产工艺。
背景技术
随着光纤通信事业的高速发展，信息需求量的剧增，迫切需要一种外径小而芯数大的光缆。骨架式光纤带光缆由于其光纤密度高，施工安装方便等诸多优点而受到关注。骨架式光缆将已制好的光纤带叠放在螺旋骨架槽中制成缆芯，并用阻水带绕包骨架，骨架采用高密度聚乙烯材料（HDPE），再在缆芯外加防护材料(PE料)制成骨架式带状光缆。骨架槽沿光缆成螺旋式旋转，以保证放置于槽内的光纤带有足够的余长，保证了光缆的抗拉、弯曲和温度特性。由于采用挤出模头旋转，使骨架外的形状似麻花，加工不方便，不易成型。
发明内容
本发明针对以上问题，提供了一种加工方便，适用挤出模头旋转挤出要求的骨架式带状光缆HDPE骨架料的生产工艺。
本发明的技术方案是：包括以下步骤：
1）、在90~94%重量比的HDPE和4~8%重量比的EVA中加入3‰～5‰重量比的4#白油，搅拌6~10分钟；
2）、在1）步骤搅拌结束后，加入1‰～1.5‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌8~12分钟；
3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为190～200℃，转速控制在45～60r/min，挤出造粒。
所述HDPE的流动速率小于2ｇ/10min。
本发明在HDPE（高密度聚乙烯）和EVA（乙烯-醋酸乙烯酯共聚物）中增加白油，白油可以增加柔性，提高了其表面的光滑度，利于成缆；聚丙烯成核剂能加速结晶，适应挤出模头旋转挤出的需要。
具体实施方式
实施例一：包括以下步骤：
1）、在94%重量比流动速率小于2ｇ/10min的HDPE和4%重量比的EVA中加入3‰重量比的4#白油，搅拌10分钟；
2）、在1）步骤搅拌结束后，加入1‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌8分钟；
3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为190℃，转速控制在60r/min，挤出造粒，切粒颗粒尺寸2.1㎜×2.6㎜，长2.8㎜；振动筛筛选、烘干、检验、包装。
实施例二：包括以下步骤：
1）、在92%重量比流动速率小于2ｇ/10min的HDPE和6%重量比的EVA中加入4‰重量比的4#白油，搅拌8分钟；
2）、在1）步骤搅拌结束后，加入1.25‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌10分钟；
3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为195℃，转速控制在50r/min，挤出造粒，切粒颗粒尺寸2.1㎜×2.6㎜，长2.8㎜；振动筛筛选、烘干、检验、包装。
实施例三：包括以下步骤：
1）、在90%重量比流动速率小于2ｇ/10min的HDPE和8%重量比的EVA中加入5‰重量比的4#白油，搅拌6分钟；
2）、在1）步骤搅拌结束后，加入1.5‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌12分钟；
3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为200℃，转速控制在45r/min，挤出造粒，切粒颗粒尺寸2.1㎜×2.6㎜，长2.8㎜；振动筛筛选、烘干、检验、包装。
Claims (2)
1.一种骨架式带状光缆HDPE骨架料的生产工艺，其特征在于，包括以下步骤：
1）、在90~94%重量比的HDPE和4~8%重量比的EVA中加入3‰～5‰重量比的4#白油，搅拌6~10分钟；
2）、在1）步骤搅拌结束后，加入1‰～1.5‰重量比的聚丙烯成核剂NA-21，在混料机内搅拌8~12分钟；
3）、将2）步骤中混合好的物料投入到1：25同向排气式双螺杆挤出机内进行混炼，各区温度为190～200℃，转速控制在45～60r/min，挤出造粒。
2. 根据权利要求1所述的一种骨架式带状光缆HDPE骨架料的生产工艺，其特征在于，所述HDPE的流动速率小于2ｇ/10min。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017215179A1 (zh) * | 2016-06-16 | 2017-12-21 | 扬州金森光电材料有限公司 | 光缆骨架料hdpe的改性方法 |
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| WO2017215179A1 (zh) * | 2016-06-16 | 2017-12-21 | 扬州金森光电材料有限公司 | 光缆骨架料hdpe的改性方法 |
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Application publication date: 20141022 |