CN106750484A - 一种发泡剂 - Google Patents
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Abstract
本发明提供一种发泡剂,涉及一种工程材料,包括:20~36份碳酸镁、15~23份碳酸氢钠、18~26份联二脲、4~8份方解石、30~43份鸡蛋壳、10~18份盐酸、12~23份次氯酸、5~10份稳定剂、3~8份紫外线吸收剂UV‑531、4~9份光稳定剂744、50~80份水;所述稳定剂包括:13~28份有机锡、10~18份亚硫酸盐、2~8份钙皂、5~16份稀土。本发明的有益之处是,所需原材料成本低,原材料中的固体化合物含有大量的碳酸成分,和原材料中的酸性化合物进行混合后,当作为发泡剂加入到塑胶加工工序时,在高温的条件下会释放出大量的二氧化碳气体,发泡效果好,稳定性高。
Description
技术领域
本发明涉及一种工程材料,尤其是一种发泡剂。
背景技术
发泡剂,就是使对象物质成孔的物质,它可分为化学发泡剂和物理发泡剂和表面活性剂三大类。化学发泡剂是那些经加热分解后能释放出二氧化碳和氮气等气体,并在聚合物组成中形成细孔的化合物;物理发泡剂就是泡沫细孔是通过某一种物质的物理形态的变化,即通过压缩气体的膨胀、液体的挥发或固体的溶解而形成的;发泡剂均具有较高的表面活性,能有效降低液体的表面张力,并在液膜表面双电子层排列而包围空气,形成气泡,再由单个气泡组成泡沫。
在加工塑料制品时,我们通常会加入发泡剂,加入发泡剂不仅能使塑料的密度降低,起到降低产品重量,节省成本的目的,同时,加入发泡剂会降低塑料产品加工时的缩水问题,此外,加入发泡剂的塑料制品在隔热、吸震性能上也比致密塑料要好,但是,目前市场上存在的发泡剂大多存在发泡力差、稳定性不理想的问题,并且价格高昂,以至生产成本的增加。
发明内容
本发明克服了现有技术中的缺点,提供一种发泡剂,所需原材料成本低,原材料中的固体化合物含有大量的碳酸成分,和原材料中的酸性化合物进行混合后,当作为发泡剂加入到塑胶加工工序时,在高温的条件下会释放出大量的二氧化碳气体,发泡效果好,稳定性高。
为了解决上述技术问题,本发明是通过以下技术方案实现的:
一种发泡剂,包括:20~36份碳酸镁、15~23份碳酸氢钠、18~26份联二脲、4~8份方解石、30~43份鸡蛋壳、10~18份盐酸、12~23份次氯酸、5~10份稳定剂、3~8份紫外线吸收剂UV-531、4~9份光稳定剂744、50~80份水;
所述稳定剂包括:13~28份有机锡、10~18份亚硫酸盐、2~8份钙皂、5~16份稀土。
进一步地,所述的一种发泡剂,包括:25~30份碳酸镁、18~20份碳酸氢钠、20~24份联二脲、5~7份方解石、36~40份鸡蛋壳、12~15份盐酸、16~19份次氯酸、7~9份稳定剂、4~7份紫外线吸收剂UV-531、6~8份光稳定剂744、60~70份水;
所述稳定剂包括:16~20份有机锡、13~16份亚硫酸盐、4~7份钙皂、8~11份稀土。
进一步地,所述发泡剂的制作方法是:
(1)按配方比对各组成成分进行称量,分开放置;
(2)将碳酸镁、碳酸氢钠、方解石和鸡蛋壳混合,搅拌均匀,先用粉碎机粉碎成500~800目数的粉末,然后采用紫外线灯灭菌30~50min;
(3)将步骤(2)所得粉末与剩余物料混合,倒入闭式搅拌容器中,调节在40~50℃温度下搅拌20~30min,并在搅拌的同时按25~40mol/min的通气量将二氧化碳气体注入到闭式搅拌容器中,搅拌完毕后保温10~15min;
(4)将步骤(3)物料倒出,烘干至含水量低于3~5%,即可。
与现有技术相比,本发明的有益效果是:
本发泡剂的原材料中的固体化合物蕴含大量的碳酸物质,与原材料中的酸性化合物进行混合后,加入到塑料加工工序时,在加热或高温的条件下,会散发出大量的二氧化碳气体,使塑料发泡效果好,并且,原材料中蕴含有稳定剂和紫外线吸收剂,使发泡后产品的稳定性和抗氧化性较好,此外,原材料采用有鸡蛋壳,鸡蛋壳中含有大量的碳酸物质,性能好,并起到废物利用的目的,进一步降低生产成本。
具体实施方式
以下对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例1
一种发泡剂,包括:20份碳酸镁、15份碳酸氢钠、18份联二脲、4份方解石、30份鸡蛋壳、10份盐酸、12份次氯酸、5份稳定剂、3份紫外线吸收剂UV-531、4份光稳定剂744、50份水;
进一步地,发泡剂的制作方法是:
(1)按配方比对各组成成分进行称量,分开放置;
(2)将碳酸镁、碳酸氢钠、方解石和鸡蛋壳混合,搅拌均匀,先用粉碎机粉碎成500目数的粉末,然后采用紫外线灯灭菌30min;
(3)将步骤(2)所得粉末与剩余物料混合,倒入闭式搅拌容器中,调节在40℃温度下搅拌20min,并在搅拌的同时按25mol/min的通气量将二氧化碳气体注入到闭式搅拌容器中,搅拌完毕后保温10min;
(4)将步骤(3)物料倒出,烘干至含水量低于3%,即可。
实施例2
一种发泡剂,包括:36份碳酸镁、23份碳酸氢钠、26份联二脲、8份方解石、43份鸡蛋壳、18份盐酸、23份次氯酸、10份稳定剂、8份紫外线吸收剂UV-531、9份光稳定剂744、80份水;
稳定剂包括:28份有机锡、18份亚硫酸盐、8份钙皂、16份稀土。
进一步地,发泡剂的制作方法是:
(1)按配方比对各组成成分进行称量,分开放置;
(2)将碳酸镁、碳酸氢钠、方解石和鸡蛋壳混合,搅拌均匀,先用粉碎机粉碎成800目数的粉末,然后采用紫外线灯灭菌50min;
(3)将步骤(2)所得粉末与剩余物料混合,倒入闭式搅拌容器中,调节在50℃温度下搅拌30min,并在搅拌的同时按40mol/min的通气量将二氧化碳气体注入到闭式搅拌容器中,搅拌完毕后保温15min;
(4)将步骤(3)物料倒出,烘干至含水量低于5%,即可。
实施例3
一种发泡剂,包括:28份碳酸镁、19份碳酸氢钠、22份联二脲、6份方解石、35份鸡蛋壳、14份盐酸、18份次氯酸、8份稳定剂、5份紫外线吸收剂UV-531、7份光稳定剂744、70份水;
稳定剂包括:19份有机锡、16份亚硫酸盐、6份钙皂、8份稀土。
进一步地,发泡剂的制作方法是:
(1)按配方比对各组成成分进行称量,分开放置;
(2)将碳酸镁、碳酸氢钠、方解石和鸡蛋壳混合,搅拌均匀,先用粉碎机粉碎成650目数的粉末,然后采用紫外线灯灭菌40min;
(3)将步骤(2)所得粉末与剩余物料混合,倒入闭式搅拌容器中,调节在45℃温度下搅拌25min,并在搅拌的同时按33mol/min的通气量将二氧化碳气体注入到闭式搅拌容器中,搅拌完毕后保温12min;
(4)将步骤(3)物料倒出,烘干至含水量低于4%,即可。
实验验证:
分别取市售发泡剂、实施例1、实施例2以及实施例3的产品,各5克,分别与250克高密度聚乙烯,放入到捏炼机中,捏合60秒,停止捏合后,取出塑料进行观察、测试,得出结果如下:
市售发泡剂 | 实施例1 | 实施例2 | 实施例3 | |
体积增大(%) | 20 | 33 | 37 | 34 |
密度(g/cm3) | 0.85 | 0.65 | 0.71 | 0.68 |
最后应说明的是:以上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,但是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。
Claims (3)
1.一种发泡剂,其特征在于,包括:20~36份碳酸镁、15~23份碳酸氢钠、18~26份联二脲、4~8份方解石、30~43份鸡蛋壳、10~18份盐酸、12~23份次氯酸、5~10份稳定剂、3~8份紫外线吸收剂UV-531、4~9份光稳定剂744、50~80份水;
所述稳定剂包括:13~28份有机锡、10~18份亚硫酸盐、2~8份钙皂、5~16份稀土。
2.根据权利要求1所述的一种发泡剂,其特征在于,包括:25~30份碳酸镁、18~20份碳酸氢钠、20~24份联二脲、5~7份方解石、36~40份鸡蛋壳、12~15份盐酸、16~19份次氯酸、7~9份稳定剂、4~7份紫外线吸收剂UV-531、6~8份光稳定剂744、60~70份水;
所述稳定剂包括:16~20份有机锡、13~16份亚硫酸盐、4~7份钙皂、8~11份稀土。
3.根据权利要求1所述的一种发泡剂,其特征在于,所述发泡剂的制作方法是:
(1)按配方比对各组成成分进行称量,分开放置;
(2)将碳酸镁、碳酸氢钠、方解石和鸡蛋壳混合,搅拌均匀,先用粉碎机粉碎成500~800目数的粉末,然后采用紫外线灯灭菌30~50min;
(3)将步骤(2)所得粉末与剩余物料混合,倒入闭式搅拌容器中,调节在40~50℃温度下搅拌20~30min,并在搅拌的同时按25~40mol/min的通气量将二氧化碳气体注入到闭式搅拌容器中,搅拌完毕后保温10~15min;
(4)将步骤(3)物料倒出,烘干至含水量低于3~5%,即可。
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CN111892739A (zh) * | 2020-08-04 | 2020-11-06 | 淮南宏阳工贸有限责任公司 | 用于硬质pvc的复合发泡剂 |
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