CN113876074B - 一种足丝纤维透气鞋底及其制备方法 - Google Patents

一种足丝纤维透气鞋底及其制备方法 Download PDF

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CN113876074B
CN113876074B CN202110964298.8A CN202110964298A CN113876074B CN 113876074 B CN113876074 B CN 113876074B CN 202110964298 A CN202110964298 A CN 202110964298A CN 113876074 B CN113876074 B CN 113876074B
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sole
outsole
midsole
fiber
foot
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CN113876074A (zh
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王育玲
卢鑫
林志杰
廖毅彬
丁思博
丁思恩
何清福
薛铭山
代雪玲
王燕
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Shengtai Fujian Shoe Material Co ltd
Maotai Fujian New Material Technology Co ltd
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Shengtai Fujian Shoe Material Co ltd
Maotai Fujian New Material Technology Co ltd
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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
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  • Medicinal Chemistry (AREA)
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  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Emergency Medicine (AREA)
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Abstract

本发明公开了一种足丝纤维透气鞋底及其制备方法。该鞋底包括内底、中底和大底，还设有足丝纤维层；所述足丝纤维层设置于中底与大底之间，包括新鲜贻贝的足丝；所述大底具有镂空部，所述镂空部与足丝纤维层中的孔隙连通。本发明中底设有透气孔，进一步保证鞋底的透气性。此外，还设有足弓垫，可以调节大底的镂空部的孔洞。本发明充分利用贻贝加工过程的废料足丝作为生物原料，实现资源的最大化利用。

Description

一种足丝纤维透气鞋底及其制备方法
技术领域
本发明属于鞋底材料技术领域，具体涉及一种足丝纤维透气鞋底及其制备方法。
背景技术
现有的鞋底基材包括牛皮、橡胶、PU、EVA、TPU、PVC、ABS、PE、PP或SBR等。其中，大底通常采用橡胶，因为橡胶的防滑、耐磨、缓冲作用比较明显，但橡胶的缺点也比较明显，就是重量较重，所以在大底中也不能用过多的橡胶。而大多数鞋材的中底常采用EVA，EVA价格便宜，刚开始穿鞋子感觉非常软，弹性良好，但是由于EVA记忆性强，时间长了容易因为反复踩踏而导致缓冲性能变差，脚感就会变硬，这是因为反复踩踏，把EVA材料中的空气给挤出去了，因此性能也有很大的下降。现有的透气鞋底常采用开设透气孔的方式，如果在中底或大底上设置过少的透气孔，可能无法实现透气的效果；但如果在中底或大底上设置过多和/或过大的透气孔，必然会损失鞋底的支撑性能和减震性能，因此如何平衡鞋底的透气性能和减震支撑性能也成为了一个需要解决的问题。
中国常见的具足丝贝类主要为异柱目种类，涉及贻贝科，钳蛤科，珍珠贝科，江姚科，扇贝科和不等蛤科，此外，还包括列齿目及真瓣鳃目的少数种类。具足丝贝类常通过其足丝分泌的贻贝粘蛋白将自己固定在海水下的岩石、船体、缆绳、漂流瓶等固体表面上，形成抗水的结合，耐受风浪等的冲刷，且足丝本身具有强韧性、耐水性强的特点。
发明内容
本发明的目的在于克服现有技术的不足之处，提供了一种足丝纤维透气鞋底及其制备方法，解决了上述背景技术中的问题。
本发明解决其技术问题所采用的技术方案之一是：提供了一种足丝纤维透气鞋底，包括内底、中底和大底，还设有足丝纤维层；所述足丝纤维层设置于中底与大底之间，包括新鲜贻贝的足丝；所述大底具有镂空部，所述镂空部与足丝纤维层中的孔隙连通。
在本发明一较佳实施例中，所述中底内均匀分散有足丝微粉。
在本发明一较佳实施例中，所述中底设有透气孔。
在本发明一较佳实施例中，所述透气孔的下端开设喇叭口，所述足丝纤维层向喇叭口内延伸。
在本发明一较佳实施例中，所述新鲜贻贝为厚壳贻贝，所述足丝包括丝线部，所述足丝微粉为茎部和根部研磨形成的粉末。
在本发明一较佳实施例中，还包括挡泥板，所述挡泥板设置于大底的周缘并向上延伸。
在本发明一较佳实施例中，所述镂空部为遍布大底设置的规则孔洞。
在本发明一较佳实施例中，还设有足弓垫，所述足弓垫包括垫片和若干与规则孔洞形状相适配的凸块。
本发明还提供了一种足丝纤维透气鞋底的制备方法，包括如下步骤：
1)原料处理：取新鲜贻贝经揉搓、清洗、去足丝机提取得到贻贝足丝，打碎过筛分离丝线部，将剩下的其他部位研磨成300目的足丝微粉；优选地，将清洗后的贻贝足丝经80-100C的高温蒸煮10分钟去除腥味和杂质；
2)大底制备：将大底胶料通过模具硫化成型，得到具有镂空部的橡胶大底；
3)中底制备：将步骤1)得到的足丝微粉与EVA材料混合，利用二次发泡和油压工艺制备得到具有透气孔的中底；
4)组装：将步骤1)的丝线部加胶混匀，通过粘合固定中底和大底，并在外周固定挡泥板，得到所述足丝纤维透气鞋底。
在本发明一较佳实施例中，还包括如下步骤：
5)足弓垫的制备：采用大底胶料通过模具硫化成型，得到与镂空部内规则孔洞形状相适配的橡胶足弓垫，将其与橡胶大底的足弓部插接。
本技术方案与背景技术相比，它具有如下优点：
1.本发明在中底和大底之间增设足丝纤维层，形成三维立体支撑网状结构，同时大底镂空部通过足丝纤维层的孔隙与中底的透气孔连通，保证了透气性；
2、本发明的中底透气孔底部设置喇叭口结构，形成类拱形，起到良好的支撑作用，同时足丝纤维层中的足丝部分延伸至喇叭口内，填充但不堵塞，进一步保证了中底的缓冲和回弹；
3、本发明大底设置镂空部，配合足弓垫使用可根据需要调节支撑性能，保证足弓部的稳定；且镂空部和足丝纤维层在一定程度上减少了大底的用量，减轻整鞋重量；
4、本发明采用产自海洋的生物质原料贻贝足丝，具有良好的韧性和耐水性能，可以适应大部分使用环境。
附图说明
图1为实施例1中鞋底结构图；
图2的a-c分别为实施例1中大底、足弓垫和装配了足弓垫的大底结构图；
图3为实施例1中鞋底结构剖视图。
其中，1-内底，2-中底，21-透气孔，22-喇叭口，3-足丝纤维层，4-大底，41-镂空部，5-足弓垫，6-挡泥板。
具体实施方式
需说明的是：如无特别注明，所述“％”指质量分数。
实施例1
本实施例一种足丝纤维透气鞋底，包括内底1、中底2和大底4，还设有足丝纤维层3；所述足丝纤维层3由新鲜贻贝的足丝搭建而成，设置于中底2与大底4之间；所述大底4具有镂空部41，所述镂空部41与足丝纤维层3中的孔隙连通，所述足丝纤维层3在保证两底透气、稳定复合的同时，为中底2提供有效的支撑和缓冲，为大底4实现减薄。
所述新鲜贻贝为厚壳贻贝，所述足丝包括丝线部，丝线部的刚性和弹性的丝线部分别执行直线和卷曲网状结构的搭建，使纤维间形成稳定的三维结构；所述中底2内均匀分散有足丝微粉，所述足丝微粉为茎部和根部研磨形成的粉末；所述中底2设有透气孔21，所述透气孔21的下端开设喇叭口22结构，形成类拱形，起到良好的支撑作用，同时足丝纤维层3中的足丝部分延伸至喇叭口22内，填充但不堵塞，进一步保证了中底2的缓冲和回弹。
本实施例包括挡泥板6，所述挡泥板6设置于大底4的周缘并向上延伸，使鞋底周缘牢固。
本实施例中，所述镂空部41为遍布大底设置的规则孔洞(如三角形等)；同时，为保证足弓部的支撑，还设有足弓垫5，所述足弓垫5包括垫片和若干与规则孔洞形状相适配的凸块。
本实施例的制备方法包括如下步骤：
1)原料处理：取新鲜贻贝经揉搓、清洗、去足丝机提取得到贻贝足丝，打碎过筛分离丝线部，将剩下的其他部位研磨成300目的足丝微粉；
2)大底制备：将大底胶料通过模压硫化成型，得到具有镂空部的橡胶大底；大底胶料包括以下重量份组分：
天然橡胶、丁苯橡胶、三元乙丙橡胶的并用橡胶共100份，白炭黑40份、硅烷偶联剂Si-692.6份、硬脂酸1份、防老剂RD 0.8份、聚乙二醇PEG4000 2.3份、氧化锌3.5份、聚乙烯蜡1.2份、石油树脂1份、硫化促进剂NS 0.3份、硫化促进剂6-GR 1份、硫化促进剂TBZTD-750.2份、不溶性硫磺2份。
其中，丁苯橡胶是美国固特异轮胎和橡胶公司的SLF33SOY：门尼粘度ML(1+4)60(100℃)，环氧大豆油17％，苯乙烯34％；乙烯基34％；三元乙丙橡胶是阿朗新科公司的Keltan@Eco 6950：门尼粘度ML(1+4)65(125℃)，生物基乙烯48％，第三单体ENB 9％。
制备方法包括以下步骤：
按照配方比例称量天然橡胶、丁苯橡胶、三元乙丙橡胶的并用橡胶共100份，白炭黑40份、硅烷偶联剂Si-69 2.6份、硬脂酸1份、防老剂RD 0.8份、聚乙二醇PEG4000 2.3份、氧化锌3.5份、聚乙烯蜡1.2份、石油树脂1份放入密炼机中密炼，113-115℃排胶，室温放置24小时；
然后在双辊开炼机上混炼，并加入准确称量的硫化促进剂NS 0.3份、硫化促进剂6-GR 1份、硫化促进剂TBZTD-75 0.2份、不溶性硫磺2份，混炼均匀后，以均匀片状出片，最后将物料裁成鞋底形状放入橡胶鞋模中硫化成型，成型温度160℃，硫化结束，取出橡胶鞋底，经修边整理后，制得大底；
3)中底制备：将步骤1)得到的足丝微粉与EVA材料混合，利用发泡和油压工艺制备得到具有透气孔的中底；由如下组分组成：
生物基EVA 90份、生物基三元乙丙橡胶10份、足丝微粉7-18份、增粘剂4.5份、AC发泡剂1.2份、交联剂BIBP 1.2份、氧化锌1.5份、硬脂酸锌0.8份、硬脂酸0.8份、生物碳酸钙粉末8份；
4)组装：将步骤1)的丝线部加胶混匀，通过粘合固定中底和大底，并在外周固定挡泥板，得到所述足丝纤维透气鞋底。
5)足弓垫的制备：采用大底胶料通过模具硫化成型，得到与镂空部内规则孔洞形状相适配的橡胶足弓垫，将其与橡胶大底的足弓部插接。
对比例1
对比例1与实施例1的区别在于：不设置足丝纤维层。
下表为实施例与对比例性能测试表：
表1
Figure BDA0003223439550000061
动态压缩变形测试说明：美国TA公司的动态机械分析仪RSA G2，使用8mm平行板，压缩模式，测试温度40℃，扫描频率4.5Hz，应变0.1％，静态力800g，总循环7.2万次。测试样品为直径12mm、上下截面平整的圆柱体。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (8)

1.一种足丝纤维透气鞋底，其特征在于：包括内底、中底和大底，还设有足丝纤维层；所述足丝纤维层设置于中底与大底之间，由新鲜贻贝的足丝搭建而成；所述大底具有镂空部，所述镂空部与足丝纤维层中的孔隙连通；所述新鲜贻贝为厚壳贻贝，所述足丝包括丝线部，丝线部的刚性和弹性的丝线部分别执行直线和卷曲网状结构的搭建，使纤维间形成稳定的三维结构；还包括挡泥板，所述挡泥板设置于大底的周缘并向上延伸；
其中，足丝的处理工艺为：取新鲜贻贝经揉搓、清洗、去足丝机提取得到贻贝足丝，打碎过筛分离丝线部，将剩下的其他部位研磨成300目的足丝微粉；将丝线部加胶混匀，通过粘合固定中底和大底，并在外周固定挡泥板。
2.根据权利要求1所述的一种足丝纤维透气鞋底，其特征在于：所述中底内均匀分散有足丝微粉。
3.根据权利要求2所述的一种足丝纤维透气鞋底，其特征在于：所述中底设有透气孔。
4.根据权利要求3所述的一种足丝纤维透气鞋底，其特征在于：所述透气孔的下端开设喇叭口，所述足丝纤维层向喇叭口内延伸。
5.根据权利要求1所述的一种足丝纤维透气鞋底，其特征在于：所述镂空部为遍布大底设置的规则孔洞。
6.根据权利要求5所述的一种足丝纤维透气鞋底，其特征在于：还设有足弓垫，所述足弓垫包括垫片和若干与规则孔洞形状相适配的凸块。
7.如权利要求6所述的一种足丝纤维透气鞋底的制备方法，其特征在于：包括如下步骤：
1)原料处理：取新鲜贻贝经揉搓、清洗、去足丝机提取得到贻贝足丝，打碎过筛分离丝线部，将剩下的其他部位研磨成300目的足丝微粉；
2)大底制备：将大底胶料通过模具硫化成型，得到具有镂空部的橡胶大底；
3)中底制备：将步骤1)得到的足丝微粉与EVA材料混合，利用二次发泡和油压工艺制备得到具有透气孔的中底；
4)组装：将步骤1)的丝线部加胶混匀，通过粘合固定中底和大底，并在外周固定挡泥板，得到所述足丝纤维透气鞋底。
8.如权利要求7所述的一种足丝纤维透气鞋底的制备方法，其特征在于：包括如下步骤：
5)足弓垫的制备：采用大底胶料通过模具硫化成型，得到与镂空部内规则孔洞形状相适配的橡胶足弓垫，将其与橡胶大底的足弓部插接。
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