CN110746645A - 一种回收橡胶颗粒的熔融助剂 - Google Patents
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Abstract
本发明公开了一种回收橡胶颗粒的熔融助剂,包括以下重量份组分:硬脂酸锌100份,聚乙二醇10‑13份,烷基苯磺酸钠4‑7份,丙烯酰胺衍生物‑‑N‑异丙基丙烯酰胺2‑4份,植酸钠2‑3份;水5‑20份,乙醇3‑5份,丙酮3‑10份;钠基膨润土3‑5份,草木灰1‑2份,草酸1‑2份;在回收橡胶颗粒熔融时,熔融助剂的使用量为:每100份橡胶颗粒,添加1‑2.5份熔融助剂;本发明还提供了相应的熔融助剂的制备方法。本发明是以提高助剂的气泡率、酸度为重点,并辅以中和反应热,促进橡胶颗粒与助剂的充分结合,从而提高橡胶颗粒的熔融效率及熔融均匀率,避免熔融过程中局部焦化或局部不熔的现象。
Description
技术领域
本发明涉及橡胶原料回收技术领域,尤其涉及一种回收橡胶颗粒的熔融助剂。
背景技术
橡胶原料回收是考验一个橡胶生产车间的重要技术指标,故此一般的橡胶加工厂、橡胶助剂(如氧化锌、硫化剂、溶胀剂等)生产车间,甚至是轮胎厂都预备一条废旧橡胶回收生产线,这也是现代绿色环保生产标准的新要求。
现有橡胶回收工艺主要为:分类、去除非橡胶成分—洗涤、去除污泥沙土—粉碎、成为胶粉—熔融成型。
当前熔融过程中,胶粉的熔融温度控制不好把握,不同种类、不同粒径乃至不同气候的废橡胶,熔融温度及熔融过程速度均不一样,加热熔融的时间及温度也不尽相同,给橡胶的加热熔融过程造成一定的操作困难。如过热,则容易焦化;如温度较低,则达不到熔融产物的要求。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,而提出的一种回收橡胶颗粒的熔融助剂。
为了实现上述目的,本发明采用了如下技术方案:
一种回收橡胶颗粒的熔融助剂,包括以下重量份组分:
硬脂酸锌100份,聚乙二醇10-13份,烷基苯磺酸钠4-7份,丙烯酰胺衍生物--N-异丙基丙烯酰胺2-4份,植酸钠2-3份;
水5-20份,乙醇3-5份,丙酮3-10份;
钠基膨润土3-5份,草木灰1-2份,草酸1-2份。
优选地,所述在回收橡胶颗粒在熔融时,熔融助剂的使用量为:
每100份重橡胶颗粒,添加1-2.5份熔融助剂。
优选地,所述熔融助剂的制备方法为:
1)将原料硬脂酸锌100份、聚乙二醇10-13份、烷基苯磺酸钠4-7份、丙烯酰胺衍生物--N-异丙基丙烯酰胺2-4份、植酸钠2-3份混合,研磨成粉,得A粉;
2)将钠基膨润土3-5份、草木灰1-2份、草酸1-2份混合,得B粉;
3)将B粉溶于水5-20份、乙醇3-5份中,得清液C;将A粉溶于丙酮3-10份,采用胶体磨,研成均匀胶体D;
4)将清液C缓慢滴加到胶体D,继续研磨1-3h,得不均匀胶体E;
5)采用高速搅拌机,将不均匀胶体E密封搅拌,得泡沫状的胶体溶胶F,此即成品熔融助剂。
优选地,所述熔融助剂使用时,在熔融挤出机中的进料斗中,同时添加回收橡胶颗粒和熔融助剂,比例为100:1-2.5。
与现有技术相比,本发明的有益效果是:
本发明是利用强酸性的清液C,对偏碱性的胶体D进行瞬间反应,产生的中和反应热,对橡胶颗粒进行充分预热;利用丙烯酰胺衍生物--N-异丙基丙烯酰胺、植酸钠的吸水特性,与助剂——硬脂酸锌粉末充分结合,在熔融挤出过程中凝胶区域缓慢出水,促进硬脂酸锌浸润橡胶颗粒;添加聚乙二醇、烷基苯磺酸钠,作为造泡剂,在水、乙醇、丙酮的溶剂中,产生大量气泡,大大提高熔融助剂的空间体积,便于与橡胶颗粒结合;采用钠基膨润土及草木灰作为草酸的吸附剂,使其与硬脂酸锌结合,促进硬脂酸锌溶解,进一步提高助剂与胶粒的结合概率。
本发明是以提高助剂的气泡率、酸度为重点,并辅以中和反应热,促进橡胶颗粒与助剂的充分结合,从而提高橡胶颗粒的熔融效率及熔融均匀率,避免熔融过程中局部焦化或局部不熔的现象。
具体实施方式
下面将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。
实施例1:
熔融助剂的制备方法为:
1)将原料硬脂酸锌100份、聚乙二醇11份、烷基苯磺酸钠5份、丙烯酰胺衍生物--N-异丙基丙烯酰胺3份、植酸钠2.5份混合,研磨成粉,得A粉;
2)将钠基膨润土4份、草木灰1.5份、草酸1.5份混合,得B粉;
3)将B粉溶于水13份、乙醇4份中,得清液C;将A粉溶于丙酮6份,采用胶体磨,研成均匀胶体D;
4)将清液C缓慢滴加到胶体D,继续研磨1-3h,得不均匀胶体E;
5)采用高速搅拌机,将不均匀胶体E密封搅拌,得泡沫状的胶体溶胶F,此即成品熔融助剂。
熔融助剂使用时,在熔融挤出机中的进料斗中,同时添加回收橡胶颗粒和熔融助剂,比例为100:1.5份。
实施例2:
熔融助剂的制备方法为:
1)将原料硬脂酸锌100份、聚乙二醇13份、烷基苯磺酸钠7份、丙烯酰胺衍生物--N-异丙基丙烯酰胺4份、植酸钠3份混合,研磨成粉,得A粉;
2)将钠基膨润土3份、草木灰1份、草酸1份混合,得B粉;
3)将B粉溶于水20份、乙醇5份中,得清液C;将A粉溶于丙酮3份,采用胶体磨,研成均匀胶体D;
4)将清液C缓慢滴加到胶体D,继续研磨1-3h,得不均匀胶体E;
5)采用高速搅拌机,将不均匀胶体E密封搅拌,得泡沫状的胶体溶胶F,此即成品熔融助剂。
熔融助剂使用时,在熔融挤出机中的进料斗中,同时添加回收橡胶颗粒和熔融助剂,比例为100:2.5份。
将原料硬脂酸锌100份、聚乙二醇10-13份、烷基苯磺酸钠4-7份、丙烯酰胺衍生物--N-异丙基丙烯酰胺2-4份、植酸钠2-3份混合,研磨成粉,得A粉;
2)将钠基膨润土3-5份、草木灰1-2份、草酸1-2份混合,得B粉;
3)将B粉溶于水5-20份、乙醇3-5份中,得清液C;将A粉溶于丙酮3-10份,采用胶体磨,研成均匀胶体D;
实施例3:
熔融助剂的制备方法为:
1)将原料硬脂酸锌100份、聚乙二醇10份、烷基苯磺酸钠4份、丙烯酰胺衍生物--N-异丙基丙烯酰胺2份、植酸钠2份混合,研磨成粉,得A粉;
2)将钠基膨润土5份、草木灰2份、草酸2份混合,得B粉;
3)将B粉溶于水5份、乙醇5份中,得清液C;将A粉溶于丙酮10份,采用胶体磨,研成均匀胶体D;
4)将清液C缓慢滴加到胶体D,继续研磨1-3h,得不均匀胶体E;
5)采用高速搅拌机,将不均匀胶体E密封搅拌,得泡沫状的胶体溶胶F,此即成品熔融助剂。
熔融助剂使用时,在熔融挤出机中的进料斗中,同时添加回收橡胶颗粒和熔融助剂,比例为100:2.5份。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种回收橡胶颗粒的熔融助剂,其特征在于,包括以下重量份组分:
硬脂酸锌100份,聚乙二醇10-13份,烷基苯磺酸钠4-7份,丙烯酰胺衍生物--N-异丙基丙烯酰胺2-4份,植酸钠2-3份;
水5-20份,乙醇3-5份,丙酮3-10份;
钠基膨润土3-5份,草木灰1-2份,草酸1-2份。
2.根据权利要求1所述的一种回收橡胶颗粒的熔融助剂,其特征在于,所述在回收橡胶颗粒在熔融时,熔融助剂的使用量为:
每100份重橡胶颗粒,添加1-2.5份熔融助剂。
3.根据权利要求1所述的一种回收橡胶颗粒的熔融助剂,其特征在于,所述熔融助剂的制备方法为:
1)将原料硬脂酸锌100份、聚乙二醇10-13份、烷基苯磺酸钠4-7份、丙烯酰胺衍生物--N-异丙基丙烯酰胺2-4份、植酸钠2-3份混合,研磨成粉,得A粉;
2)将钠基膨润土3-5份、草木灰1-2份、草酸1-2份混合,得B粉;
3)将B粉溶于水5-20份、乙醇3-5份中,得清液C;将A粉溶于丙酮3-10份,采用胶体磨,研成均匀胶体D;
4)将清液C缓慢滴加到胶体D,继续研磨1-3h,得不均匀胶体E;
5)采用高速搅拌机,将不均匀胶体E密封搅拌,得泡沫状的胶体溶胶F,此即成品熔融助剂。
4.根据权利要求3所述的一种回收橡胶颗粒的熔融助剂,其特征在于,所述熔融助剂使用时,在熔融挤出机中的进料斗中,同时添加回收橡胶颗粒和熔融助剂,比例为100:1-2.5。
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