CN114835963A - 一种环保型可自动连续生产的预分散母粒制备工艺 - Google Patents
一种环保型可自动连续生产的预分散母粒制备工艺 Download PDFInfo
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Abstract
本发明公开了一种环保型可自动连续生产的预分散母粒制备工艺,包括以下步骤:S1、配置基料,按重量份数计,取60~80份树脂、5~10份混合胶,在120℃~140℃条件下先将树脂软化,3~5min后再将混合胶加入到树脂中,继续加热并充分混合5~8min,得到基料;S2、配制添加剂,按重量份数计,所述添加剂由1~6份分散剂、2~5份扩链剂、2~8份增韧剂组合而成;S3、配制辅助添加剂,按重量份数计所述辅助添加剂由5~10份抗氧化剂、1~3份填充剂组合而成;本发明的预分散母粒具有良好的抗氧化性,在自然条件下,该母粒具有优异的化学稳定性和耐腐蚀性,该母粒不含有毒有害物质,是一种可靠的环保型产品。
Description
技术领域
本发明涉及母粒制备技术领域,具体为一种环保型可自动连续生产的预分散母粒制备工艺。
背景技术
母粒别名母料是由超量的化学助剂、载体树脂和分散剂所组成,母粒是把超常量的颜料均匀载附于树脂中而得到的聚集体,母粒是指在塑料加工成型过程中,为了操作上的方便,将所需要的各种助剂、填料与少量载体树脂先进行混合混炼,制得的粒料称为母粒;
现有母粒制备工艺生产的母粒还存在着生产效率低,生产工艺不够环保,且生产的母粒在自然条件下,存在着稳定性不足等问题。
发明内容
本发明的目的在于提供一种环保型可自动连续生产的预分散母粒制备工艺,该母粒环保且加工性优良。
为实现上述目的,本发明提供如下技术方案:
一种环保型可自动连续生产的预分散母粒制备工艺,包括以下步骤:
S1、配置基料:
按重量份数计,取60~80份树脂、5~10份混合胶,在120℃~140℃条件下先将树脂软化,3~5min后再将混合胶加入到树脂中,继续加热并充分混合5~8min,得到基料;
S2、配制添加剂:
按重量份数计,所述添加剂由1~6份分散剂、2~5份扩链剂、2~8份增韧剂组合而成;
S3、配制辅助添加剂:
按重量份数计,所述辅助添加剂由5~10份抗氧化剂、1~3份填充剂组合而成;
S4、综合混料:
按重量份数计,将5~12份步骤S2配制的添加剂、2~10份步骤S3中配制的辅助添加剂与80~100份步骤S1配制的基料混合,在混料机中充分混合10~20min;
S5、利用挤压机将步骤S4获得的混合原料挤压成型造粒;
S6、对步骤S5造粒获得的颗粒状原料进行干燥、冷却,随即进行打包装袋,即得到所述预分散母粒。
优选地,所述树脂为聚乙烯、聚酯树脂、乙烯基树脂、乙烯与辛烯共聚物、丁烯与辛烯共聚物中的一种。
优选地,所述混合胶为EPDM、SBR、EVA、顺丁橡胶中的一种或多种的组合。
优选地,步骤S1树脂软化的升温过程为,在5~10min内升温至80℃~90℃,保温3~6min,然后再在5~10min内升温至120℃~140℃。
说明:该升温过程更加温和,避免因在加热过程中造成成分变质。
优选地,所述分散剂为聚乙烯蜡、聚季戊四醇硬脂酸酯、硬酯酸镁、硬酯酸钙、硬脂酸锌中的一种;所述分散剂为聚乙烯蜡、聚季戊四醇硬脂酸酯、硬酯酸镁、硬酯酸钙、硬脂酸锌中的一种;
所述扩链剂为1,4-丁二醇、1,6-己二醇、二羟甲基丁酸、三羟甲基丙烷中的一种或多种组合;
所述增韧剂为聚乙烯醇缩丁醛、聚醋酸乙烯和氯化聚乙烯中的一种或多种组合。
优选地,所述抗氧化剂为烷基酚、丁基羟基甲苯、烯基双酚、芳香胺类中的一种;
所述填充剂为碳酸钙、二氧化钛、炭黑、高岭土、硅藻土、木粉、黏土、二氧化硅和滑石粉中的一种或多种组合。
说明:抗氧化剂有利于产品保质,填充剂能够改善产品的综合性能。
优选地,步骤S4混料时利用超声波进行震动处理,超声波频率为28KHz~36KHz。
说明:混料时使用超声波震动,使得混料更加均匀。
优选地,步骤S5挤压成型造粒过程中保持温度在70℃~110℃,并配合使用频率为22KHz~28KHz的超声波进行超声震动处理。
说明:在造粒过程中进行超声波震动,有利于使得成品质地更加紧密。
优选地,步骤S6中的颗粒原料在50℃~70℃条件下干燥6~10min,再利用干燥的压缩空气对干燥后的颗粒原料降温冷却。
说明:对颗粒原料进行干燥有利于长期保存,利用干燥的压缩空气对颗粒原料冷却,便于后期封装,同时避免空气中的水分对颗粒原料产生不良影响。
优选地,步骤S6中冷却后的颗粒原料定量装袋,并抽真空密封。
与现有技术相比,本发明的有益效果是:本发明的预分散母粒具有良好的抗氧化性,在自然条件下,该母粒具有优异的化学稳定性和耐腐蚀性,利用该母粒制得的产品质量优良,各项机械性能均衡,同时具有良好的可加工性,真空装袋的母粒便于保存和运输,该母粒不含有毒有害物质,在自然环境中危害极小,是一种可靠的环保型产品。
附图说明
图1是本发明的工艺流程图。
具体实施方式
下面结合图1对本发明进行详细说明,为叙述方便,现对下文所说的方位规定如下:下文所说的上下左右前后方向与图1本身投影关系的上下左右前后方向一致。
实施例1:
一种环保型可自动连续生产的预分散母粒制备工艺,包括以下步骤:
S1、配置基料:
按重量份数计,取60份树脂、5份混合胶,在120℃条件下先将树脂软化,3min后再将混合胶加入到树脂中,继续加热并充分混合5min,得到基料;
步骤S1树脂软化的升温过程为,在5min内升温至80℃,保温3min,然后再在5min内升温至120℃;
所述树脂为聚乙烯;
所述混合胶为EPDM。
S2、配制添加剂:
按重量份数计,所述添加剂由1份分散剂、2份扩链剂、2份增韧剂组合而成;
所述分散剂为聚乙烯蜡;
所述扩链剂为1,4-丁二醇;
所述增韧剂为聚乙烯醇缩丁醛。
S3、配制辅助添加剂:
按重量份数计,所述辅助添加剂由5份抗氧化剂、1份填充剂组合而成;
所述抗氧化剂为烷基酚;
所述填充剂为碳酸钙。
S4、综合混料:
按重量份数计,将5份步骤S2配制的添加剂、2份步骤S3中配制的辅助添加剂与80份步骤S1配制的基料混合,在混料机中充分混合10min;
步骤S4混料时利用超声波进行震动处理,超声波频率为28KHz。
S5、利用挤压机将步骤S4获得的混合原料挤压成型造粒;
步骤S5挤压成型造粒过程中保持温度在70℃,并配合使用频率为22KHz的超声波进行超声震动处理。
S6、对步骤S5造粒获得的颗粒状原料进行干燥、冷却,随即进行打包装袋,即得到所述预分散母粒。
步骤S6中的颗粒原料在50℃条件下干燥6min,再利用干燥的压缩空气对干燥后的颗粒原料降温冷却,冷却后的颗粒原料定量装袋,并抽真空密封。
实施例2:
一种环保型可自动连续生产的预分散母粒制备工艺,包括以下步骤:
S1、配置基料:
按重量份数计,取70份树脂、7.5份混合胶,在130℃条件下先将树脂软化,4min后再将混合胶加入到树脂中,继续加热并充分混合6min,得到基料;
步骤S1树脂软化的升温过程为,在7min内升温至85℃,保温4min,然后再在7min内升温至130℃;
所述树脂为乙烯与辛烯共聚物;
所述混合胶为EPDM与SBR按质量比1:1组合。
S2、配制添加剂:
按重量份数计,所述添加剂由3份分散剂、3.5份扩链剂、5份增韧剂组合而成;
所述分散剂为硬酯酸镁中的一种;
所述扩链剂为1,4-丁二醇、1,6-己二醇按质量比2:1组合;
所述增韧剂为聚乙烯醇缩丁醛、聚醋酸乙烯和氯化聚乙烯按质量比2:1:1组合。
S3、配制辅助添加剂:
按重量份数计,所述辅助添加剂由7.5份抗氧化剂、2份填充剂组合而成;
所述抗氧化剂为丁基羟基甲苯;
所述填充剂为碳酸钙、二氧化钛、炭黑、高岭土按质量比5:4:2:3组合。
S4、综合混料:
按重量份数计,将8份步骤S2配制的添加剂、6份步骤S3中配制的辅助添加剂与90份步骤S1配制的基料混合,在混料机中充分混合15min;
步骤S4混料时利用超声波进行震动处理,超声波频率为32KHz。
S5、利用挤压机将步骤S4获得的混合原料挤压成型造粒;
步骤S5挤压成型造粒过程中保持温度在90℃,并配合使用频率为25KHz的超声波进行超声震动处理。
S6、对步骤S5造粒获得的颗粒状原料进行干燥、冷却,随即进行打包装袋,即得到所述预分散母粒。
步骤S6中的颗粒原料在60℃条件下干燥8min,再利用干燥的压缩空气对干燥后的颗粒原料降温冷却,冷却后的颗粒原料定量装袋,并抽真空密封。
实施例3:
一种环保型可自动连续生产的预分散母粒制备工艺,包括以下步骤:
S1、配置基料:
按重量份数计,取80份树脂、10份混合胶,在140℃条件下先将树脂软化,5min后再将混合胶加入到树脂中,继续加热并充分混合8min,得到基料;
步骤S1树脂软化的升温过程为,在10min内升温至90℃,保温6min,然后再在10min内升温至140℃;
所述树脂为聚酯树脂;
所述混合胶为EVA、顺丁橡胶按质量比1:1组合。
S2、配制添加剂:
按重量份数计,所述添加剂由6份分散剂、5份扩链剂、8份增韧剂组合而成;
所述分散剂为硬酯酸钙;
所述扩链剂为二羟甲基丁酸、三羟甲基丙烷按质量比3:2组合;
所述增韧剂为聚乙烯醇缩丁醛、聚醋酸乙烯和氯化聚乙烯按质量比3:2:2组合。
S3、配制辅助添加剂:
按重量份数计,所述辅助添加剂由10份抗氧化剂、3份填充剂组合而成;
所述抗氧化剂为烯基双酚;
所述填充剂为碳酸钙、二氧化钛、硅藻土、二氧化硅和滑石粉按质量比2:1:2:1:3组合。
S4、综合混料:
按重量份数计,将12份步骤S2配制的添加剂、10份步骤S3中配制的辅助添加剂与100份步骤S1配制的基料混合,在混料机中充分混合20min;
步骤S4混料时利用超声波进行震动处理,超声波频率为36KHz。
S5、利用挤压机将步骤S4获得的混合原料挤压成型造粒;
步骤S5挤压成型造粒过程中保持温度在110℃,并配合使用频率为28KHz的超声波进行超声震动处理。
S6、对步骤S5造粒获得的颗粒状原料进行干燥、冷却,随即进行打包装袋,即得到所述预分散母粒。
步骤S6中的颗粒原料在70℃条件下干燥10min,再利用干燥的压缩空气对干燥后的颗粒原料降温冷却,冷却后的颗粒原料定量装袋,并抽真空密封。
Claims (10)
1.一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于,包括以下步骤:
S1、配置基料:
按重量份数计,取60~80份树脂、5~10份混合胶,在120℃~140℃条件下先将树脂软化,3~5min后再将混合胶加入到树脂中,继续加热并充分混合5~8min,得到基料;
S2、配制添加剂:
按重量份数计,所述添加剂由1~6份分散剂、2~5份扩链剂、2~8份增韧剂组合而成;
S3、配制辅助添加剂:
按重量份数计,所述辅助添加剂由5~10份抗氧化剂、1~3份填充剂组合而成;
S4、综合混料:
按重量份数计,将5~12份步骤S2配制的添加剂、2~10份步骤S3中配制的辅助添加剂与80~100份步骤S1配制的基料混合,在混料机中充分混合10~20min;
S5、利用挤压机将步骤S4获得的混合原料挤压成型造粒;
S6、对步骤S5造粒获得的颗粒状原料进行干燥、冷却,随即进行打包装袋,即得到所述预分散母粒。
2.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:所述树脂为聚乙烯、聚酯树脂、乙烯基树脂、乙烯与辛烯共聚物、丁烯与辛烯共聚物中的一种。
3.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:所述混合胶为EPDM、SBR、EVA、顺丁橡胶中的一种或多种的组合。
4.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:步骤S1树脂软化的升温过程为,在5~10min内升温至80℃~90℃,保温3~6min,然后再在5~10min内升温至120℃~140℃。
5.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:所述分散剂为聚乙烯蜡、聚季戊四醇硬脂酸酯、硬酯酸镁、硬酯酸钙、硬脂酸锌中的一种;
所述扩链剂为1,4-丁二醇、1,6-己二醇、二羟甲基丁酸、三羟甲基丙烷中的一种或多种组合;
所述增韧剂为聚乙烯醇缩丁醛、聚醋酸乙烯和氯化聚乙烯中的一种或多种组合。
6.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:所述抗氧化剂为烷基酚、丁基羟基甲苯、烯基双酚、芳香胺类中的一种;
所述填充剂为碳酸钙、二氧化钛、炭黑、高岭土、硅藻土、木粉、黏土、二氧化硅和滑石粉中的一种或多种组合。
7.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:步骤S4混料时利用超声波进行震动处理,超声波频率为28KHz~36KHz。
8.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:步骤S5挤压成型造粒过程中保持温度在70℃~110℃,并配合使用频率为22KHz~28KHz的超声波进行超声震动处理。
9.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:步骤S6中的颗粒原料在50℃~70℃条件下干燥6~10min,再利用干燥的压缩空气对干燥后的颗粒原料降温冷却。
10.根据权利要求1所述的一种环保型可自动连续生产的预分散母粒制备工艺,其特征在于:步骤S6中冷却后的颗粒原料定量装袋,并抽真空密封。
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