CN107189233A - 汽车空调用环保密封海绵及其制备方法 - Google Patents

汽车空调用环保密封海绵及其制备方法 Download PDF

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CN107189233A
CN107189233A CN201710383792.9A CN201710383792A CN107189233A CN 107189233 A CN107189233 A CN 107189233A CN 201710383792 A CN201710383792 A CN 201710383792A CN 107189233 A CN107189233 A CN 107189233A
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王红胜
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Abstract

本发明公开了汽车空调用环保密封海绵及其制备方法，涉及空调密封海绵技术领域，所述海绵由以下重量份的原料制成：生物基EPDM 80‑95份、聚乳酸纤维10‑15份、炭黑30‑40份、硬脂酸1‑2份、氧化锌1‑2份、高岭土30‑40份、重质碳酸钙25‑35份、腰果壳油1‑3份、发泡剂AC 1‑2份、发泡剂OBSH 1‑2份、促进剂PZ 1‑2份、促进剂NS 1‑2份、PEG4000 2‑4份、硅烷偶联剂1‑2份、硫磺2‑3份、DCP 1‑2份、稳定剂1‑2份，本发明以生物基EPDM为原料，减少对石油资源的依赖，绿色环保可再生，添加的可生物降解的聚乳酸纤维能够进一步提高材料的强度和弹性，各组分配比合理，制得的材料性能更加优异，拉伸强度大、容重低，永久变形小，能够更好的满足汽车空调密封性要求。

Description

汽车空调用环保密封海绵及其制备方法
技术领域
本发明涉及空调密封海绵技术领域，具体涉及一种汽车空调用环保密封海绵及其制备方法。
背景技术
空调密封海绵是汽车内必不可少的用品，其主要用于空调风口密封、出风口与风道连接处密封、HVAC处的密封、芯体与壳体连接处密封等，起到控制风量合理分配、缓冲、防震的作用，对于密封海绵的要求就要包括耐油、耐寒、耐老化、高强度、不易变形等特点。
聚氨酯是生活中最常见的一种高分子材料，广泛应用于制作各种海绵制品。聚氨酯海绵生产制备过程中需用到原料聚醚多元醇，然而，现有聚氨酯海绵生产制备中通常采用的是石油类聚醚多元醇，制成的聚氨酯稳定性高，自然状态下难以分解；使之不具有可降解性，不利于环境保护和可持续发展，随着海绵制品的应用领域的扩大，市场需要大量的海绵供给，导致严重的环境负担，但是现行的其它空调密封海绵存在很多性能缺陷。
发明内容
本发明的目的在于提供一种汽车空调用环保密封海绵及其制备方法。
为实现以上目的，本发明通过以下技术方案予以实现：
汽车空调用环保密封海绵，由以下重量份的原料制成：生物基EPDM 80-95份、聚乳酸纤维10-15份、炭黑30-40份、硬脂酸1-2份、氧化锌1-2份、高岭土30-40份、重质碳酸钙25-35份、腰果壳油1-3份、发泡剂AC 1-2份、发泡剂OBSH 1-2份、促进剂PZ 1-2份、促进剂NS 1-2份、PEG4000 2-4份、硅烷偶联剂1-2份、硫磺2-3份、DCP 1-2份、稳定剂1-2份。
优选地，汽车空调用环保密封海绵由以下重量份的原料制成：生物基EPDM 90份、聚乳酸纤维12份、炭黑35份、硬脂酸1份、氧化锌1份、高岭土35份、重质碳酸钙30份、腰果壳油2份、发泡剂AC 1.2份、发泡剂OBSH 1.6份、促进剂PZ 1.5份、促进剂NS 1.2份、PEG4000 3份、硅烷偶联剂1.5份、硫磺2份、DCP 1.5份、稳定剂1.5份。
优选地，所述生物基EPDM为Keltan Eco 6950。
优选地，所述稳定剂为硬脂酸钙、硬脂酸锌、单硬脂酸甘油酯、二硬脂酸甘油酯、三硬脂酸甘油酯中的一种或多种。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练5-10min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼5-10min，再加入促进剂PZ、促进剂NS、聚乳酸纤维3-5min，得到混炼胶，排胶温度为130-140℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼5-10min，并薄通2-4遍，制成胶片，放置8-10h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼5-10min，并薄通4-6遍，在170-190℃下硫化，下片，停放8-10h后使用。
有益效果：本发明以生物基EPDM为原料，减少对石油资源的依赖，绿色环保可再生，添加的可生物降解的聚乳酸纤维能够进一步提高材料的强度和弹性，各组分配比合理，制得的材料性能更加优异，拉伸强度大、容重低，永久变形小，能够更好的满足汽车空调密封性要求。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1：
汽车空调用环保密封海绵，由以下重量份的原料制成：Keltan Eco 6950 90份、聚乳酸纤维12份、炭黑35份、硬脂酸1份、氧化锌1份、高岭土35份、重质碳酸钙30份、腰果壳油2份、发泡剂AC 1.2份、发泡剂OBSH 1.6份、促进剂PZ 1.5份、促进剂NS 1.2份、PEG4000 3份、硅烷偶联剂1.5份、硫磺2份、DCP 1.5份、硬脂酸锌1.5份。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练8min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼5min，再加入促进剂PZ、促进剂NS、聚乳酸纤维4min，得到混炼胶，排胶温度为135℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼8min，并薄通3遍，制成胶片，放置9h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP，混炼8min，并薄通5遍，在180℃下硫化，下片，停放10h后使用。
实施例2：
汽车空调用环保密封海绵，由以下重量份的原料制成：生物基EPDM 92份、聚乳酸纤维14份、炭黑32份、硬脂酸1.5份、氧化锌1.5份、高岭土37份、重质碳酸钙28份、腰果壳油2.5份、发泡剂AC 1.5份、发泡剂OBSH 1.5份、促进剂PZ 1.5份、促进剂NS 1.5份、PEG4000 3份、硅烷偶联剂1份、硫磺2.5份、DCP 1份、二硬脂酸甘油酯1份。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练10min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼7min，再加入促进剂PZ、促进剂NS、聚乳酸纤维3min，得到混炼胶，排胶温度为130℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼5min，并薄通3遍，制成胶片，放置10h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼5min，并薄通6遍，在185℃下硫化，下片，停放10h后使用。
实施例3：
汽车空调用环保密封海绵，由以下重量份的原料制成：Keltan Eco 6950 87份、聚乳酸纤维11份、炭黑35份、硬脂酸1份、氧化锌1份、高岭土32份、重质碳酸钙32份、腰果壳油3份、发泡剂AC 1.5份、发泡剂OBSH 1份、促进剂PZ 1份、促进剂NS 1.5份、PEG4000 2份、硅烷偶联剂1.5份、硫磺2份、DCP 1份、硬脂酸钙1份。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练10min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼5min，再加入促进剂PZ、促进剂NS、聚乳酸纤维5min，得到混炼胶，排胶温度为130℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼5min，并薄通3遍，制成胶片，放置10h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼5min，并薄通4遍，在170℃下硫化，下片，停放8h后使用。
实施例4：
汽车空调用环保密封海绵，由以下重量份的原料制成：Keltan Eco 6950 80份、聚乳酸纤维15份、炭黑30份、硬脂酸2份、氧化锌1份、高岭土40份、重质碳酸钙25份、腰果壳油3份、发泡剂AC 1份、发泡剂OBSH 2份、促进剂PZ 1份、促进剂NS 2份、PEG4000 2份、硅烷偶联剂2份、硫磺2份、DCP 2份、稳定剂1份；其中，稳定剂为硬脂酸钙和三硬脂酸甘油酯的混合物。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练5min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼10min，再加入促进剂PZ、促进剂NS、聚乳酸纤维3min，得到混炼胶，排胶温度为130℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼10min，并薄通2遍，制成胶片，放置8h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼10min，并薄通4遍，在170℃下硫化，下片，停放 8h后使用。
实施例5：
汽车空调用环保密封海绵，由以下重量份的原料制成：Keltan Eco 6950 95份、聚乳酸纤维10份、炭黑40份、硬脂酸1份、氧化锌2份、高岭土30份、重质碳酸钙35份、腰果壳油1份、发泡剂AC 2份、发泡剂OBSH 1份、促进剂PZ 2份、促进剂NS 1份、PEG4000 4份、硅烷偶联剂1份、硫磺3份、DCP 1份、单硬脂酸甘油酯2份。
汽车空调用环保密封海绵的制备方法，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练10min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼10min，再加入促进剂PZ、促进剂NS、聚乳酸纤维5min，得到混炼胶，排胶温度为140℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼10min，并薄通2遍，制成胶片，放置10h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼10min，并薄通6遍，在190℃下硫化，下片，停放9h后使用。
对本发明实施例1-5制备的密封海绵进行性能测试，其拉伸强度可达1.7MPa，压缩永久变形（75%）小于4，回弹率为50%。

Claims (5)

1.汽车空调用环保密封海绵，其特征在于，由以下重量份的原料制成：生物基EPDM 80-95份、聚乳酸纤维10-15份、炭黑30-40份、硬脂酸1-2份、氧化锌1-2份、高岭土30-40份、重质碳酸钙25-35份、腰果壳油1-3份、发泡剂AC 1-2份、发泡剂OBSH 1-2份、促进剂PZ 1-2份、促进剂NS 1-2份、PEG4000 2-4份、硅烷偶联剂1-2份、硫磺2-3份、DCP 1-2份、稳定剂1-2份。
2.如权利要求1所述的汽车空调用环保密封海绵，其特征在于，由以下重量份的原料制成：生物基EPDM 90份、聚乳酸纤维12份、炭黑35份、硬脂酸1份、氧化锌1份、高岭土35份、重质碳酸钙30份、腰果壳油2份、发泡剂AC 1.2份、发泡剂OBSH 1.6份、促进剂PZ 1.5份、促进剂NS 1.2份、PEG4000 3份、硅烷偶联剂1.5份、硫磺2份、DCP 1.5份、稳定剂1.5份。
3.如权利要求1所述的汽车空调用环保密封海绵，其特征在于，所述生物基EPDM为Keltan Eco 6950。
4.如权利要求1所述的汽车空调用环保密封海绵，其特征在于，所述稳定剂为硬脂酸钙、硬脂酸锌、单硬脂酸甘油酯、二硬脂酸甘油酯、三硬脂酸甘油酯中的一种或多种。
5.如权利要求1-4任一所述的汽车空调用环保密封海绵的制备方法，其特征在于，步骤如下：
1）将生物基EPDM生胶放入密炼机中塑练5-10min，加入炭黑、硬脂酸、氧化锌、高岭土、重质碳酸钙、腰果壳油、硅烷偶联剂、稳定剂、PEG4000，混炼5-10min，再加入促进剂PZ、促进剂NS、聚乳酸纤维3-5min，得到混炼胶，排胶温度为130-140℃；
2）向步骤1）混炼胶中加入发泡剂AC、发泡剂OBSH，混炼5-10min，并薄通2-4遍，制成胶片，放置8-10h自然发泡；
3）向步骤2）胶片中加入硫磺和DCP ，混炼5-10min，并薄通4-6遍，在170-190℃下硫化，下片，停放 8-10h后使用。
CN201710383792.9A 2017-05-26 2017-05-26 汽车空调用环保密封海绵及其制备方法 Pending CN107189233A (zh)

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