CN105968299A - 防噪耳塞用聚氨酯海绵及其制备方法 - Google Patents

防噪耳塞用聚氨酯海绵及其制备方法 Download PDF

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CN105968299A
CN105968299A CN201610575036.1A CN201610575036A CN105968299A CN 105968299 A CN105968299 A CN 105968299A CN 201610575036 A CN201610575036 A CN 201610575036A CN 105968299 A CN105968299 A CN 105968299A
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荆晓东
耿佃勇
董伟
王帅
马立敏
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Zibo Dexin Lianbang Chemical Industry Co Ltd
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Abstract

本发明涉及一种防噪耳塞用聚氨酯海绵及其制备方法,属于聚氨酯技术领域。所述的聚氨酯海绵,由A组份和B组份制成,以重量份数计,A组份由以下原料制成:聚醚多元醇A35~50份,聚醚多元醇B 50~70份,水2~4份,锡催化剂0.15~0.3份,胺催化剂0.25~0.4份,物理发泡剂5~10份,泡沫稳定剂0.5~2.5份,海绵色浆1~2份;B组份为异氰酸酯25~40份。其制备方法是将A组分加入搅拌器中混合均匀并调整温度;然后将B组分加入到A组分中,搅拌后立即倒入模具中,熟化后得到成品。本发明具有超柔软、手感好、不易撕破的特点,佩戴时的舒适度好,其制备方法简单,生产效率高。

Description

防噪耳塞用聚氨酯海绵及其制备方法
技术领域
本发明涉及一种防噪耳塞用聚氨酯海绵及其制备方法,属于聚氨酯技术领域。
背景技术
随着噪声控制逐步引起人们的关注,防噪耳塞的研发和应用得到了极大的促进,同时随着人类对新材料的热衷,近年来,慢回弹性的材料渐渐成为了制作隔音耳塞的主流,它是具有慢回弹特性的聚氯乙烯泡沫塑料隔音耳塞。在一般使用情况下,耳塞材料应具有一定的强度、硬度和弹性,容易清洗、消毒,与皮肤接触时应无刺激性,同时还应具备耐水、耐热、耐寒性,即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,以满足在恶劣环境中能正常使用的要求。耳塞材料还应有耐老化性,其老化系数不低于80%,且有防止因人耳分泌油脂而影响使用性能的耐油性。但是,目前市面上的防噪耳塞普遍存在触感差、舒适度不够的问题,影响了人们的正常使用。
发明内容
本发明的目的是提供一种防噪耳塞用聚氨酯海绵,具有柔软、触感好、防噪效果好的特点;本发明同时提供其制备方法。
本发明所述的防噪耳塞用聚氨酯海绵,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:
所述的聚醚多元醇A为3官能度,分子量为3000的聚氧化丙烯-氧化乙烯醚多元醇,优选DEP-560D,生产厂家为淄博德信联邦化学工业有限公司,用此类多元醇制备得到的制品轻便、手感柔软;
所述的聚醚多元醇B为3官能度,分子量为3300的聚氧化丙烯-氧化乙烯醚多元醇,优选DEP-505S,生产厂家为淄博德信联邦化学工业有限公司,EO含量高,用此类多元醇制备得到的制品手感好、柔软;
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A33,主要是利用它的高活性,对凝胶反应和发泡反应起到较强的催化作用。
所述的泡沫稳定剂的型号为L-580,生产厂家为美国迈图,主要是起乳化泡沫物料、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。
以重量份数计,B组份由以下原料:
异氰酸酯 25~40份。
所述的异氰酸酯为甲苯二异氰酸酯TDI-80。
本发明所述的防噪耳塞用聚氨酯海绵的制备方法,包括以下步骤:
(1)将A组份中的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,得到防噪耳塞用聚氨酯海绵。
优选的技术方案如下:
步骤(1)中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A组份中搅拌5s。
步骤(3)中熟化时间为24h。
本发明的有益效果如下:
本发明的防噪耳塞用聚氨酯海绵具有超柔软、手感好、不易撕破的特点,佩戴时的舒适度好,其制备方法简单,生产效率高。
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
防噪耳塞用聚氨酯海绵,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:
以重量份数计,B组份由以下原料:
TDI-80 38份。
制备方法,包括以下步骤:
(1)将A组份中的各原料按配比量加入到搅拌器中混合均匀并调整温度至24℃,同时将B组份预热至24℃;
(2)将模具预加热至40℃,并保持温度恒定;
(3)搅拌器转速调至4000r/min,将B组份加入到混合好的A组份中搅拌5s,然后立即将其加入至模具中进熟化24h,得到防噪耳塞用聚氨酯海绵。
实施例2
防噪耳塞用聚氨酯海绵,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:
以重量份数计,B组份由以下原料:
TDI-80 40份。
制备方法,包括以下步骤:
(1)将A组份中的各原料按配比量加入到搅拌器中混合均匀并调整温度至26℃,同时将B组份预热至26℃;
(2)将模具预加热至40℃,并保持温度恒定;
(3)搅拌器转速调至4000r/min,将B组份加入到混合好的A组份中搅拌5s,然后立即将其加入至模具中进熟化24h,得到防噪耳塞用聚氨酯海绵。
实施例3
防噪耳塞用聚氨酯海绵,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:
以重量份数计,B组份由以下原料:
TDI-80 27份。
制备方法,包括以下步骤:
(1)将A组份中的各原料按配比量加入到搅拌器中混合均匀并调整温度至23℃,同时将B组份预热至23℃;
(2)将模具预加热至35℃,并保持温度恒定;
(3)搅拌器转速调至4000r/min,将B组份加入到混合好的A组份中搅拌5s,然后立即将其加入至模具中进熟化24h,得到防噪耳塞用聚氨酯海绵。

Claims (10)

1.一种防噪耳塞用聚氨酯海绵,其特征在于: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:
其中;
所述聚醚多元醇A为3官能度,分子量为3000的聚氧化丙烯-氧化乙烯醚多元醇;
所述聚醚多元醇B为3官能度,分子量为3300的聚氧化丙烯-氧化乙烯醚多元醇;
以重量份数计,B组份由以下原料:
异氰酸酯 25~40份。
2.根据权利要求1所述的防噪耳塞用聚氨酯海绵,其特征在于:锡催化剂为辛酸亚锡。
3.根据权利要求1所述的防噪耳塞用聚氨酯海绵,其特征在于:胺催化剂为凝胶催化剂A33。
4.根据权利要求1所述的防噪耳塞用聚氨酯海绵,其特征在于:泡沫稳定剂的型号为L-580,生产厂家为美国迈图。
5.根据权利要求1所述的防噪耳塞用聚氨酯海绵,其特征在于:物理发泡剂为二氯甲烷。
6.根据权利要求1所述的防噪耳塞用聚氨酯海绵,其特征在于:异氰酸酯为甲苯二异氰酸酯TDI-80。
7.一种权利要求1~6任一所述的防噪耳塞用聚氨酯海绵的制备方法,其特征在于:包括以下步骤:
(1)将A组份中的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,得到防噪耳塞用聚氨酯海绵。
8.根据权利要求7所述的防噪耳塞用聚氨酯海绵的制备方法,其特征在于:步骤(1)中A组份温度为23-27℃,B组份的预热温度为23-27℃。
9.根据权利要求7所述的防噪耳塞用聚氨酯海绵的制备方法,其特征在于:步骤(2)中模具预加热温度为35-45℃。
10.根据权利要求7所述的防噪耳塞用聚氨酯海绵的制备方法,其特征在于:步骤(3)中搅拌器转速为4000r/min,将B组份加入到混合好的A组份中搅拌5s,熟化时间为24h。
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CN106832180A (zh) * 2017-02-24 2017-06-13 耿佃勇 聚氨酯分子筛级防毒面具吸附海绵及其制备方法
CN106832179A (zh) * 2017-02-24 2017-06-13 耿佃勇 聚氨酯防雾霾泡沫海绵及其制备方法
CN106866928A (zh) * 2017-02-24 2017-06-20 耿佃勇 聚氨酯高强度亲水性海绵及其制备方法
CN107854214A (zh) * 2017-12-08 2018-03-30 广州金海纳防护用品有限公司 一种负离子pu材料耳塞
CN110527055A (zh) * 2019-09-27 2019-12-03 赛诺(浙江)聚氨酯新材料有限公司 一种聚氨酯海绵两次搅拌发泡制备方法及装置

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CN106832179A (zh) * 2017-02-24 2017-06-13 耿佃勇 聚氨酯防雾霾泡沫海绵及其制备方法
CN106866928A (zh) * 2017-02-24 2017-06-20 耿佃勇 聚氨酯高强度亲水性海绵及其制备方法
CN107854214A (zh) * 2017-12-08 2018-03-30 广州金海纳防护用品有限公司 一种负离子pu材料耳塞
CN110527055A (zh) * 2019-09-27 2019-12-03 赛诺(浙江)聚氨酯新材料有限公司 一种聚氨酯海绵两次搅拌发泡制备方法及装置

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