CN114015131A - 一种低密度高弹性的新型橡塑材料制备工艺 - Google Patents

一种低密度高弹性的新型橡塑材料制备工艺 Download PDF

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CN114015131A
CN114015131A CN202111405357.4A CN202111405357A CN114015131A CN 114015131 A CN114015131 A CN 114015131A CN 202111405357 A CN202111405357 A CN 202111405357A CN 114015131 A CN114015131 A CN 114015131A
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秦伯军
张君
秦天德
陈浩
刘远斌
谢存剑
曹鑫
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Aerocel Building Materials Jiangsu Co ltd
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Abstract

本发明公开了一种低密度高弹性的新型橡塑材料制备工艺,包括准备橡塑材料,橡胶:丁腈N41橡胶25‑35份;聚烯烃弹性体10‑25份;乙烯‑醋酸乙烯共聚物5‑10份;聚氯乙烯:15‑25份;发泡剂:发泡剂18‑25份;消烟剂:消烟剂50‑55份;炭黑30‑40份;滑石粉10‑20份;二氧化硅5‑10份;硬脂酸0.5‑1.5份;氧化锌3‑8份;防老剂0.5‑1份;防老剂:0.5‑1.5份;蒙坦蜡5‑8份;2280石蜡油7‑10份;二甲基二硫代氨基甲酸锌1.5‑2份、二乙二硫代氨基甲酸锌0.5‑1.0份。本发明采用新材料聚烯烃弹性体(POE),增加橡胶挺性,极大减小压缩形变和收缩较差情况,增强了回弹性,采用新型硫化工艺‑‑湿法填充促进剂用来加速硫化,生产中的低温控制和多螺杆挤出,充分保障了产品密闭性的气泡孔和有弹性有光泽的表面。

Description

一种低密度高弹性的新型橡塑材料制备工艺
技术领域
本发明涉及橡塑材料领域,特别涉及一种低密度高弹性的新型橡塑材料制备工艺。
背景技术
随着国家和化工行业对橡塑发泡材料的使用要求越来越高,尤其是某些高端产品的生产领域,传统的配方和工艺有待提高,为此,制备一种用途范围更广,质量更加优异的低密度高弹性橡塑制品。
现有技术中:常规橡塑密度较大,一是限制了使用范围,在高端产品领域限制了其应用;二是增加了生产成本,常规橡塑一般弹性有限,在符合国标情况下高弹性橡塑质量更好。
发明内容
本发明的目的在于提供一种低密度高弹性的新型橡塑材料制备工艺,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种低密度高弹性的新型橡塑材料制备工艺,包括一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,包括以下步骤:
步骤一:准备橡塑材料,橡胶:丁腈N41橡胶25-35份;聚烯烃弹性体10-25份;乙烯-醋酸乙烯共聚物5-10份;聚氯乙烯:15-25份;发泡剂:发泡剂18-25份;消烟剂:消烟剂50-55份;炭黑30-40份;滑石粉10-20份;二氧化硅5-10份;硬脂酸0.5-1.5份;氧化锌3-8份;防老剂0.5-1份;防老剂:0.5-1.5份;蒙坦蜡5-8份;2280石蜡油7-10份;二甲基二硫代氨基甲酸锌1.5-2份、二乙二硫代氨基甲酸锌0.5-1.0份;六硫化五亚甲基秋兰姆0.5份;硫磺母粒:0.5-1.5;二甲基氨基甲酸钠0.5-1.0份;氢氧化镁15-25份,并根据组分以及各组分的重量进行原料准确称量;
步骤二:将丁腈橡胶2-10份、聚烯烃弹性体10-25份、乙烯-醋酸乙烯共聚物5-10份与二甲基氨基甲酸钠0.5-1.0份在低温低转速混炼,得到一号胶;
将上述称量好的物料放入密炼室进行密炼,密炼机冷水全通每炉时间炼胶6分钟以上,密炼至110℃-128℃出料,低温出胶,得二号胶;
将一号胶和二号胶在低温密炼机低速混炼均匀,得到三号胶;
步骤三:将上述三号胶倒入开炼机完全薄通两次降温后投自动摆料架翻胶240秒后切片,切出的胶片厚度7-8mm,胶片宽度900-1000mm,胶片长度4000-5000mm,冷却待用,得一号胶片;
步骤四:将三号胶片投入开炼机,压热包辊后依次加入按重量份数称取促进剂:二亚硝基五亚甲基四胺1.5份、二丁基二硫代氨基甲酸锌1.5份、二乙二硫代氨基甲酸锌1份;六硫化五亚甲基秋兰姆0.5份,发泡剂20份。搅拌均匀后投胶料到自动翻料擘、开计时器、自动翻料300秒开始下料、胶条厚度7-8mm,胶条宽度150mm-200mm,胶条不切断直至料下完,得二号胶条;
步骤五:采用多螺杆挤出机,将二号胶条放入挤出机,得成型料;
步骤六:挤出胶料后再牵引压延,调整尺寸;
步骤七、将上述成型料经引料棒送入有多节烘道的烘箱发泡出橡胶管,得橡塑管;
步骤八:将上述橡塑管用引料棒将其引入水槽冷却5-10分钟后经传递带送至切台;
步骤九:调整切台的速度,使其与冷却传送带一致,调节计米器,按尺寸要求进行剪切。
优选的,所述消烟剂为氢氧化铝。
优选的,在步骤二中,先投下橡胶及炭黑后密炼三分钟再依次其它物料,步骤二中促进剂和发泡剂不加。
优选的,在步骤三中:卸料放置时每层铺垫塑料并在双面刷适量滑石粉预防粘连。
优选的,在步骤五中,依次调整挤出机上的温度为:机头段30℃-35℃、挤出段30℃-35℃、塑化段30℃-35℃、螺杆段25℃-30℃,启动挤出机,调整转速25-35转/分,将胶条均匀喂入喂料口,进过多层磨具挤出成型。
优选的,在步骤七中,多节烘道为七节,各节烘道温度为:一节120℃-125℃,二节125℃-135℃,三节135℃145℃-,四节145℃-155℃,五节155℃-165℃,六节165℃-175℃。
本发明的技术效果和优点:
1、采用新材料聚烯烃弹性体(POE),增加橡胶挺性,极大减小压缩形变和收缩较差情况,增强了回弹性,且产品低密度为40±3k;
2、采用新型硫化工艺--湿法填充促进剂用来加速硫化;
3、生产中的低温控制和多螺杆挤出,充分保障了产品密闭性的气泡孔和有弹性有光泽的表面。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明提供了一种低密度高弹性的新型橡塑材料制备工艺,步骤1、工作人员逐一核对检查原、辅料的品名,橡胶:丁腈N41橡胶25-35份;聚烯烃弹性体10-25份;乙烯-醋酸乙烯共聚物5-10份;聚氯乙烯:15-25份;发泡剂:发泡剂18-25份;消烟剂:消烟剂(氢氧化铝)50-55份;炭黑30-40份;滑石粉10-20份;二氧化硅5-10份;硬脂酸0.5-1.5份;氧化锌3-8份;防老剂(MBT)0.5-1份;防老剂(4020)0.5-1.5份;蒙坦蜡5-8份;2280石蜡油7-10份;二甲基二硫代氨基甲酸锌1.5-2份、二乙二硫代氨基甲酸锌0.5-1.0份;六硫化五亚甲基秋兰姆0.5份;硫磺母粒:0.5-1.5;二甲基氨基甲酸钠0.5-1.0份;氢氧化镁15-25份。并根据组分以及各组分的重量进行原料准确称量;
步骤2、将部分丁腈橡胶2-10份、聚烯烃弹性体10-25份、乙烯-醋酸乙烯共聚物5-10份与二甲基氨基甲酸钠0.5-1.0份在低温低转速混炼,得到一号胶;
将上述称量好的物料放入密炼室进行密炼(先投下橡胶及炭黑后密炼三分钟再依次其它物料(促进剂和发泡剂不加),密炼机冷水全通每炉时间炼胶6分钟以上),密炼至110℃-125℃出料(不得高于128℃),低温出胶,得二号胶;
将一号胶和二号胶在低温密炼机低速混炼均匀,得到三号胶;
步骤3、将上述三号胶倒入开炼机完全薄通两次降温后投自动摆料架翻胶240秒后切片,切出的胶片厚度7-8mm,胶片宽度900-1000mm,胶片长度4000-5000mm,冷却待用,得一号胶片(卸料放置时每层铺垫塑料并在双面刷适量滑石粉预防粘连);
步骤4、将三号胶片投入开炼机,压热包辊后依次加入按重量份数称取促进剂:二亚硝基五亚甲基四胺1.5份、二丁基二硫代氨基甲酸锌1.5份、二乙二硫代氨基甲酸锌1份;六硫化五亚甲基秋兰姆0.5份,发泡剂20份。搅拌均匀后投胶料到自动翻料擘、开计时器、自动翻料300秒开始下料、胶条厚度7-8mm,胶条宽度150mm-200mm,胶条不切断直至料下完,得二号胶条;
步骤5、采用多螺杆挤出机(一般是单螺杆挤出),多螺杆的啮合区增多,碾压剪切面积成倍增加,进过这种多层挤出,胶料的密度和质量,大大提高。将二号胶条放入挤出机,依次调整挤出机上的温度为:机头段30℃-35℃、挤出段30℃-35℃、塑化段30℃-35℃、螺杆段25℃-30℃,启动挤出机,调整转速25-35转/分,将胶条均匀喂入喂料口(防止表面起皱),进过多层磨具挤出成型,得成型料;
步骤6、挤出胶料后再牵引压延,调整尺寸;
步骤7、将上述成型料经引料棒送入有多节烘道的烘箱发泡出橡胶管(板);多节烘道为七节,各节烘道温度为:一节120℃-125℃,二节125℃-135℃,三节135℃145℃-,四节145℃-155℃,五节155℃-165℃,六节165℃-175℃,得橡塑管;
步骤8、将上述橡塑管用引料棒将其引入水槽冷却5-10分钟后经传递带送至切台;
步骤9、调整切台的速度,使其与冷却传送带一致,调节计米器,按尺寸要求进行剪切。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
在本发明的描述中,除非另有明确的规定和限定,术语“设置”、“安装”、“相连”、“连接”、“固定”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
本发明使用到的标准零件均可以从市场上购买,异形件根据说明书的记载均可以进行订制。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。

Claims (6)

1.一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,包括以下步骤:
步骤一:准备橡塑材料,橡胶:丁腈N41橡胶25-35份;聚烯烃弹性体10-25份;乙烯-醋酸乙烯共聚物5-10份;聚氯乙烯:15-25份;发泡剂:发泡剂18-25份;消烟剂:消烟剂50-55份;炭黑30-40份;滑石粉10-20份;二氧化硅5-10份;硬脂酸0.5-1.5份;氧化锌3-8份;防老剂0.5-1份;防老剂:0.5-1.5份;蒙坦蜡5-8份;2280石蜡油7-10份;二甲基二硫代氨基甲酸锌1.5-2份、二乙二硫代氨基甲酸锌0.5-1.0份;六硫化五亚甲基秋兰姆0.5份;硫磺母粒:0.5-1.5;二甲基氨基甲酸钠0.5-1.0份;氢氧化镁15-25份,并根据组分以及各组分的重量进行原料准确称量;
步骤二:将丁腈橡胶2-10份、聚烯烃弹性体10-25份、乙烯-醋酸乙烯共聚物5-10份与二甲基氨基甲酸钠0.5-1.0份在低温低转速混炼,得到一号胶;
将上述称量好的物料放入密炼室进行密炼,密炼机冷水全通每炉时间炼胶6分钟以上,密炼至110℃-128℃出料,低温出胶,得二号胶;
将一号胶和二号胶在低温密炼机低速混炼均匀,得到三号胶;
步骤三:将上述三号胶倒入开炼机完全薄通两次降温后投自动摆料架翻胶240秒后切片,切出的胶片厚度7-8mm,胶片宽度900-1000mm,胶片长度4000-5000mm,冷却待用,得一号胶片;
步骤四:将三号胶片投入开炼机,压热包辊后依次加入按重量份数称取促进剂:二亚硝基五亚甲基四胺1.5份、二丁基二硫代氨基甲酸锌1.5份、二乙二硫代氨基甲酸锌1份;六硫化五亚甲基秋兰姆0.5份,发泡剂20份。搅拌均匀后投胶料到自动翻料擘、开计时器、自动翻料300秒开始下料、胶条厚度7-8mm,胶条宽度150mm-200mm,胶条不切断直至料下完,得二号胶条;
步骤五:采用多螺杆挤出机,将二号胶条放入挤出机,得成型料;
步骤六:挤出胶料后再牵引压延,调整尺寸;
步骤七、将上述成型料经引料棒送入有多节烘道的烘箱发泡出橡胶管,得橡塑管;
步骤八:将上述橡塑管用引料棒将其引入水槽冷却5-10分钟后经传递带送至切台;
步骤九:调整切台的速度,使其与冷却传送带一致,调节计米器,按尺寸要求进行剪切。
2.根据权利要求1所述的一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,所述消烟剂为氢氧化铝。
3.根据权利要求1所述的一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,在步骤二中,先投下橡胶及炭黑后密炼三分钟再依次其它物料,步骤二中促进剂和发泡剂不加。
4.根据权利要求1所述的一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,在步骤三中:卸料放置时每层铺垫塑料并在双面刷适量滑石粉预防粘连。
5.根据权利要求1所述的一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,在步骤五中,依次调整挤出机上的温度为:机头段30℃-35℃、挤出段30℃-35℃、塑化段30℃-35℃、螺杆段25℃-30℃,启动挤出机,调整转速25-35转/分,将胶条均匀喂入喂料口,进过多层磨具挤出成型。
6.根据权利要求1所述的一种低密度高弹性的新型橡塑材料制备工艺,其特征在于,在步骤七中,多节烘道为七节,各节烘道温度为:一节120℃-125℃,二节125℃-135℃,三节135℃145℃-,四节145℃-155℃,五节155℃-165℃,六节165℃-175℃。
CN202111405357.4A 2021-11-24 2021-11-24 一种低密度高弹性的新型橡塑材料制备工艺 Pending CN114015131A (zh)

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