CN110872371A - 一种采用z15吸音粒子慢回弹海绵耳塞的制备方法 - Google Patents
一种采用z15吸音粒子慢回弹海绵耳塞的制备方法 Download PDFInfo
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Abstract
本发明涉及一种含BAO净化因子的复合空气净化颗粒,由三种颗粒组成,主要成分为:其中第一种颗粒:海泡石、凹凸棒土、石墨烯、钙基膨润土、表面活性剂、硅藻土、光催化剂;第二种颗粒:改性氧化铝、钙基膨润土、活性炭粉、改性剂;第三种颗粒:钙基膨润土、改性电气石、沸石、负离子粉、活性炭。其生产工艺及流程为:将上述所述物质分别过筛后按照重量份配比加入纯水高速搅拌,用超声波清洗,然后烘干得到混合粉,加入一定量的硫酸铝水溶液,充分搅拌后制成颗粒状再放入干燥箱中干燥放入到高温活化炉中活化,按照特定比例混合,即得成品。本发明的有效效果为:能够高效的吸收有害气体物质;有效的解决了吸附周期过短,使用寿命不高的问题。
Description
技术领域
本发明涉及一种采用Z15吸音粒子慢回弹海绵耳塞的研究及制备方法,属于聚氨酯技术领域。
背景技术
随着社会的高速发展,噪音控制也逐渐进入我们的视线,噪音已成为世界重要的三大公害之一。现在越来越多的人相信噪音对健康有损无益, 但是很多人往往忽视了噪音对人类的危害。隔音耳塞由此应运而生,伴随着噪音危害的日益增强,隔音用聚氨酯耳塞的开发以及应用得到了很大的推进。
同时,随着各国科研人员对材料研究的热衷,具有慢回弹特性的高分子材料逐渐成为制作隔音耳塞的主流。高分子材料生产成本低、质量轻、无环境二次污染问题,同时对各频段噪声都具有稳定的吸声效果而得到了广泛应用。常见的高分子发泡吸声材料主要有聚乙烯(PEA ,聚丙烯(PP)、聚苯乙烯(PS), 脲醛等泡沫塑料、聚氯乙烯(PVC),聚氨基甲酸酯(PU),其中聚氨基甲酸酯的应用较为广泛。
聚氨酯材料具有一定的力学强度和弹性,这种材料容易清洗和消毒,在与皮肤接触后,也不会产生刺激性,同时它还具备耐水、耐热、耐寒等特性。按国家标准规定的方法进行试验后,无严重变形、硬化、破损、龟裂等永久性变形和破裂,所以它能够满足在恶劣环境中正常使用的要求。但是,目前市面上的隔音用耳塞普遍存在触感差、舒适度不够的问题,严重影响了人们的正常使用。
本发明开发一种具有高回弹且回弹慢的聚氨酯软质海绵隔音耳塞,在保持隔音效果稳定的基础上,增加其超柔软、手感好、不易撕裂、佩戴时的舒适度的效果,杜绝了传统耳塞佩戴一段时间后容易开裂、变硬起粉等现象,使其成为国内防噪耳塞的风向标。
发明内容
本发明的目的是提供一种采用Z15吸音粒子慢回弹海绵耳塞的研究及制备方法,它能够提供隔音效果好,回弹性好,柔软度佳且舒适度优越的一款耳塞。
本发明所述的隔音用慢回弹海绵,由A组份和B组份制成,其中:
以重量分数计,A组份由以下原料组成:
聚醚多元醇A 20-50份
聚醚多元醇B 20-50份
聚合物多元醇C 20-50份
水 1-3份
改性纳米碳酸钙 0.2-0.5份
锡催化剂 0.2-0.5份
胺催化剂 0.5-1.5份
物理发泡剂 6-10份
泡沫稳定剂 1.5-3份
开孔剂 1-2份
海绵色浆 1-2份
所述的聚醚多元醇A为官能度3,羟值为40mgKOH/g的高活性聚醚多元醇,优选为3521,生产厂家为佳化化学有限公司。
所述的聚醚多元醇B为官能度3,羟值为240mgKOH/g的软泡聚醚多元醇,优选为F1070A,生产厂家为山东一诺威材料有限公司。
所述的聚合物多元醇C为官能度3,羟值为28mgKOH/g的接枝聚醚,优选为POP。
所述的改性纳米碳酸钙为超细微纳米碳酸钙(Z15吸音粒子),具有吸收噪音和改善手感的功效。
所述的锡催化剂为辛酸亚锡,主要是对凝胶反应起催化作用。
所述的胺催化剂为凝胶催化剂EF-600,主要是利用它的高活性,对凝胶反应和发泡反应起较强的作用。
所述的泡沫稳定剂的型号为BL-8002M,主要起乳化泡沫、稳定泡沫和调节泡孔的作用。
所述的物理发泡剂为二氯甲烷,其主要作用是能够代替部分水来降低海绵密度,减少黑料的用量,并能够克服因水量多而引起的泡沫变脆手感硬的缺点。
所述的开孔剂型号为LD269,其主要作用是增加泡孔开孔性能,防止闭孔,改善泡沫结构,是泡孔具有优良的回弹性、压缩性和舒适感。
以重量份数计,B组份由以下原料:
异氰酸酯 30-50份
所述的异氰酸酯为二甲基甲烷二异氰酸酯MDI-50。
本发明所述的隔音用聚氨酯海绵的制备方法,包括以下步骤:
(1)将A组份中各原料按配比量加入到搅拌器中混合均匀并调整温度,同时将B组份进行预热;
(2)将模具进行预加热,并保持温度恒定;
(3)调整搅拌器的转速,将B组份加入到混合好的A组份中进行搅拌,然后将其加入至模具中进行熟化,得到隔音用聚氨酯海绵耳塞。
优选的技术方案如下:
步骤(1)中的A组份温度为23-27℃,B组份的预热温度为23-27℃。
步骤(2)中模具预加热温度为35-45℃。
步骤(3)中搅拌器转速为4000r/min,将B组份加入到混合好的组份中搅拌5s。
步骤(3)中熟化时间为24h。
本发明的有效增益效果如下:
本发明的隔音用聚氨酯海绵耳塞具有隔音效果好,抗噪效果强,回弹时间长,舒适度好,力学性能强,同时生产简单等优点。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
隔音用聚氨酯海绵耳塞,由A组份和B组份制成,其中:
以重量份数计,A组份由以下原料制成:
3521 20份
F1070A 40份
POP 40份
水 1.7份
Z15 0.2份
T9 0.33份
EF-600 1.1份
二氯甲烷 8份
BL-8002 2份
LD269 1.7份
海绵色浆 1.5份
以重量份数计,B组份由以下原料:
MDI-50 47份
制备方法,包括以下步骤:
(1)将A组份中各原料按配比量加入到搅拌器中混合均匀并调整温度至25℃,同时将B组份进行预热至25℃;
(2)将模具进行预加热至40℃,并保持温度恒定;
(3)调整搅拌器的转速至4000r/min,将B组份加入到混合好的A组份中进行搅拌6s,然后将其加入至模具中进行熟化24h,得到隔音用聚氨酯海绵耳塞。
实施例2
隔音用聚氨酯海绵耳塞,由A组份和B组份制成,其中:
以重量份数计,A组份由以下原料制成:
3521 30份
F1070A 40份
POP 30份
水 2.5份
Z15 0.3份
T9 0.42份
EF-600 1.5份
二氯甲烷 10份
BL-8002M 2.5份
LD269 1.2份
海绵色浆 1.6份
以重量份数计,B组份由以下原料:
MDI-50 50份
制备方法,包括以下步骤:
(1)将A组份中各原料按配比量加入到搅拌器中混合均匀并调整温度至25℃,同时将B组份进行预热至25℃;
(2)将模具进行预加热至40℃,并保持温度恒定;
(3)调整搅拌器的转速至4000r/min,将B组份加入到混合好的A组份中进行搅拌6s,然后将其加入至模具中进行熟化24h,得到隔音用聚氨酯海绵耳塞。
实施例3
隔音用聚氨酯海绵耳塞,由A组份和B组份制成,其中:
以重量份数计,A组份由以下原料制成:
3521 25份
F1070A 35份
POP 40份
水 1.5份
Z15 0.4份
T9 0.28份
EF-600 1.0份
二氯甲烷 7份
BL-8002M 1.8份
LD269 1.9份
海绵色浆 1.3份
以重量份数计,B组份由以下原料:
MDI-50 42份
制备方法,包括以下步骤:
(1)将A组份中各原料按配比量加入到搅拌器中混合均匀并调整温度至25℃,同时将B组份进行预热至25℃;
(2)将模具进行预加热至40℃,并保持温度恒定;
(3)调整搅拌器的转速至4000r/min,将B组份加入到混合好的A组份中进行搅拌6s,然后将其加入至模具中进行熟化24h,得到隔音用聚氨酯海绵耳塞。
实施例4
隔音用聚氨酯海绵耳塞,由A组份和B组份制成,其中:
以重量份数计,A组份由以下原料制成:
3521 35份
F1070A 25份
POP 40份
水 2份
T9 0.37份
EF-600 1.3份
二氯甲烷 9份
BL-8002M 2.2份
LD269 1.4份
海绵色浆 1.4份
以重量份数计,B组份由以下原料:
MDI-50 35份
制备方法,包括以下步骤:
(1)将A组份中各原料按配比量加入到搅拌器中混合均匀并调整温度至25℃,同时将B组份进行预热至25℃;
(2)将模具进行预加热至40℃,并保持温度恒定;
(3)调整搅拌器的转速至4000r/min,将B组份加入到混合好的A组份中进行搅拌6s,然后将其加入至模具中进行熟化24h,得到隔音用聚氨酯海绵耳塞。
本发明中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充采用类似的方式替代,但并不会偏离本发明的精神所定义的范围。
Claims (5)
1.一种采用Z15吸音粒子慢回弹耳塞,其特征在于,其为聚醚多元醇 (A)、聚醚多元醇(B)、聚合物多元醇 (C)、复合催化剂、发泡剂、特殊添加剂、改性剂、开孔剂的混合液反应发泡而成的软质聚氨酯泡沫,所述软质聚氨酯泡沫的芯密度在24~40kg/m3的范围内。
2.根据权利要求1所述的慢回弹耳塞,其特征在于,所述聚醚多元醇(A)具有3的官能度,并且分子量在2000-3000。
3.根据权利要求1所述的慢回弹耳塞,其特征在于,所述聚醚多元醇(B)具有3的官能度,并且分子量在1800-2000。
4.根据权利要求1所述的慢回弹耳塞,其特征在于,所述聚合物多元醇(C)具有3的官能度,并且分子量在3000-4000。
5.根据权利要求1-4所述的慢回弹耳塞的制作方法,其特征在于将所述的原料高速混合后注入模具内,然后使其发泡固化。
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CN116874737A (zh) * | 2022-04-11 | 2023-10-13 | 长华化学科技股份有限公司 | 慢回弹低温感降噪耳塞用组合料及其制备方法 |
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US20060025487A1 (en) * | 2002-09-24 | 2006-02-02 | Paolo Scudieri | Sound-absorbing and soundproofing polyurethane composition |
CN105315451A (zh) * | 2015-11-25 | 2016-02-10 | 山东一诺威新材料有限公司 | 慢回弹聚醚多元醇及其制备方法和慢回弹泡沫及其制备方法 |
CN106065064A (zh) * | 2016-07-21 | 2016-11-02 | 淄博德信联邦化学工业有限公司 | 吸音海绵及其制备方法 |
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CN105315451A (zh) * | 2015-11-25 | 2016-02-10 | 山东一诺威新材料有限公司 | 慢回弹聚醚多元醇及其制备方法和慢回弹泡沫及其制备方法 |
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CN113208813A (zh) * | 2021-03-30 | 2021-08-06 | 电子科技大学 | 一种降噪耳塞 |
CN116874737A (zh) * | 2022-04-11 | 2023-10-13 | 长华化学科技股份有限公司 | 慢回弹低温感降噪耳塞用组合料及其制备方法 |
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