CN113263819A - 一种聚氨酯树脂的制备方法 - Google Patents

一种聚氨酯树脂的制备方法 Download PDF

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CN113263819A
CN113263819A CN202010094709.8A CN202010094709A CN113263819A CN 113263819 A CN113263819 A CN 113263819A CN 202010094709 A CN202010094709 A CN 202010094709A CN 113263819 A CN113263819 A CN 113263819A
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polyurethane resin
parts
base fabric
sheet shape
layer
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石鹏杰
王家兵
韩雨桐
周颂阳
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Nanjing Yikairui New Material Co ltd
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Nanjing Yikairui New Material Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2375/00—Polyureas; Polyurethanes

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  • Medicinal Chemistry (AREA)
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  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
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  • Laminated Bodies (AREA)

Abstract

本发明公开了一种聚氨酯材料及其制备方法，包括以下步骤：(1)将聚氯乙烯(PVC)85‑110份，热塑性聚氨酯弹性体(TPU)12‑28份，邻苯二甲酸二辛酯1‑60份混合，发泡剂1‑10份，发泡助剂0.1‑3份，填充剂0‑80份，经混合装置混合加工后，通过压延机碾压成片状，作为人造皮的皮革层，贴合于基布上，原料份数均为质量份数；(2)送入发泡烘箱，使发泡剂分解生成发泡结构，再经过压花机，在表面形成装饰花纹，制成所需耐低温人造皮。

Description

一种聚氨酯树脂的制备方法
技术领域
本发明涉及一种聚氨酯树脂的制备方法，通过制备获得具有良好耐热性、耐寒性、抗冲击强度的聚氨酯树脂。
背景技术
聚氨酯树脂，用于航空、铁路、建筑、体育等方面；用于木制家具及金属的表面罩光；用于贮罐、管道、冷库、啤酒、发酵罐、保鲜桶的绝热保温保冷，房屋建筑绝热防水，也可用于预制聚氨酯板材；可用于制造塑料制品、耐磨合成橡胶制品、合成纤维、硬质和软质泡沫塑料制品、胶粘剂和涂料等；用于各类木器、化工设备、电讯器材和仪表及各种运输工具的表面涂饰。
聚氨酯树脂(Polyurethane Resin)作为一种具有高强度、抗撕裂、耐磨等特性的高分子材料,在日常生活、工农业生产、医学等领域广泛应用。
目前的工作生活中，大部分领域都已实现用聚氨酯树脂来代替一些高分子材料，并且在单一耐高温、耐低温等性能方面取得的很大突破，但其往往综合性能不高，在温度较高时发生软化现在，耐冲击性能下降，而在温度降低时容易变硬，发生断裂现象。
因此，为了经济的发展，有必要开发出一种具有良好耐高温、耐低温、抗冲击的聚氨酯树脂。
发明内容
本发明的目的在于克服上述不足，提供一种聚氨酯树脂的制备方法，提高聚氨酯树脂的耐高温、耐低温性能、抗冲击强度。
本发明通过以下方法实现：
一种聚氨酯树脂的制备方法，其特征在于，包括以下步骤：
第一基布层，第二基布层，水性聚氨酯树脂层；
其中，水性聚氨酯树脂层位于第一基布层和第二基布层之间；
将水性聚氨酯树脂层贴合于第一基布层和第二基布层后，送入压延机碾压成片状，控制片状厚度，随后送入烘箱，烘干后再经过压花机，在表面形成装饰花纹，制成所需聚氨酯树脂。
进一步的，所述水性聚氨酯树脂层包含水性聚氨酯弹性体、聚氯乙烯、领苯二甲酸二辛脂。
进一步的，按照质量份数计算，所述水性聚氨酯弹性体10-25份、聚氯乙烯80-100份、领苯二甲酸二辛脂1-50份。
进一步的，所述碾压温度为100℃-160℃。
进一步的，所述烘箱的温度为140℃-200℃。
进一步的，所述压花机温度为120℃-180℃。
与现有技术相比，本发明的有益效果是：
1、在聚氨酯树脂的水性聚氨酯树脂层中添加了水性聚氨酯弹性体，其具有在高温下塑化的特点，当外界温度过高，可防止聚氨酯树脂软化。
2、水性聚氨酯弹性体的选用，有效的在PVC和增塑剂邻苯二甲酸二辛酯之间形成缓冲基团，当外界冲击力过大时，能起到良好的缓冲作用，避免聚氨酯树脂断裂。
3、当外界温度过低时，水性聚氨酯弹性体可以作为良好的保护剂，缓解低温对PVC树脂的影响，避免聚氨酯树脂硬化，影响使用性能。
具体实施方式：
本发明具体按照以下步骤进行：将水性聚氨酯弹性体10-25份、聚氯乙烯80-100份、领苯二甲酸二辛脂1-50份，水性聚氨酯树脂层，贴合于第一基布层和第二基布层中间；送入烘箱，烘干，再经过压花机，在表面形成装饰花纹，制成所需聚氨酯树脂。
按表1中的原材料配方制备聚氨酯树脂。
表1
Figure BDA0002384968100000031
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (6)

1.一种聚氨酯树脂的制备方法，其特征在于，包括以下步骤：
第一基布层，第二基布层，水性聚氨酯树脂层；
其中，水性聚氨酯树脂层位于第一基布层和第二基布层之间；
将水性聚氨酯树脂层贴合于第一基布层和第二基布层后，送入压延机碾压成片状，控制片状厚度，随后送入烘箱，烘干后再经过压花机，在表面形成装饰花纹，制成所需聚氨酯树脂。
2.根据权利要求1所述的一种聚氨酯树脂的制备方法，其特征在于，所述水性聚氨酯树脂层包含水性聚氨酯弹性体、聚氯乙烯、领苯二甲酸二辛脂。
3.根据权利要求2所述的一种聚氨酯树脂的制备方法，其特征在于，按照质量份数计算，所述水性聚氨酯弹性体10-25份、聚氯乙烯80-100份、领苯二甲酸二辛脂1-50份。
4.根据权利要求1-3任一项所述的一种聚氨酯树脂的制备方法，其特征在于，所述碾压温度为100℃-160℃。
5.根据权利要求1-3任一项所述的一种聚氨酯树脂的制备方法，其特征在于，所述烘箱的温度为140℃-200℃。
6.根据权利要求1-3任一项所述的一种聚氨酯树脂的制备方法，，其特征在于，所述压花机温度为120℃-180℃。
CN202010094709.8A 2020-02-16 2020-02-16 一种聚氨酯树脂的制备方法 Pending CN113263819A (zh)

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