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CN104650309A - 天然植物油基植载泡棉及制备方法 - Google Patents

天然植物油基植载泡棉及制备方法 Download PDF

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CN104650309A
CN104650309A CN201410039496.3A CN201410039496A CN104650309A CN 104650309 A CN104650309 A CN 104650309A CN 201410039496 A CN201410039496 A CN 201410039496A CN 104650309 A CN104650309 A CN 104650309A
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叶艺峰
陈俊铃
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FUJIAN GENEROUS SPONGE TECHNOLOGY Co Ltd
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Abstract

本发明公开一种天然植物油基植载泡棉及制备方法,由组合料和异氰酸酯制成;组合料,按重量比包含:复合多元醇100,交联剂或扩链剂0~8,复合催化剂0~3,泡沫稳定剂0.5~4,发泡剂0.2~10,填料0~50,异氰酸酯酯数为0.3~0.75)的比例。本发明将聚氨酯技术应用到植栽领域,以具有独特的吸水保水特性以及可降解特点,可以应用于沙漠保水,防沙化等。

Description

天然植物油基植载泡棉及制备方法
技术领域
本发明涉及聚氨酯应用材料的技术领域,特别涉及一种天然植物油基植载泡棉及其制备方法。
背景技术
植栽泡棉是指具有亲水性,强吸水效果,很好保水能力的泡棉,可以将植物种子(如绿豆)植于泡棉内部使发芽生长。
传统聚氨酯泡棉的制备过程若需要能吸水保水,一般是加入具有强吸水能力的添加物如聚丙烯醛等。虽然这种方法对提高聚氨酯泡棉的吸水能力有一定的效果,但是存在几点缺陷:
1、强吸水物质的加入增加了聚氨酯加工的一道工序,增加了额外的成本;
2、强吸水物质很难在聚氨酯泡棉中均匀一致的分布,导致不同部位吸水性的差异;
3、经多次使用后,强吸水性添加物易从泡棉中脱离出来,导致吸水能力显著下降。
另一种方法是在多元醇组分中使用高比重的亲水聚醚,在低的异氰酸酯酯数(0.35~0.7)下反应,通过亲水聚醚及羟基本身的亲水性来获得理想的吸水效果。如US5424338等。但是所用聚醚的活性过高,常导致泡棉的泡孔、工艺过程不易控制,泡棉性能不理想。
同时传统聚氨酯材料都采用石油化工产品,属于不可再生资源,随着石油的消耗,油价飙升,必将影响聚氨酯工业的发展。
因此,很有必要通过聚氨酯本身材料的改善来获得强吸水的聚氨酯泡棉。
发明内容
本发明的目的在于提供一种天然植物油基植载泡棉及制备方法,其将聚氨酯技术应用到植栽领域,以具有独特的吸水保水特性以及可降解特点,可以应用于沙漠保水,防沙化等。
为了达成上述目的,本发明的解决方案是:
天然植物油基植载泡棉,由组合料和异氰酸酯制成;
组合料,按重量比包含:
复合多元醇        100       
交联剂或扩链剂    0~8
复合催化剂        0~3     
泡沫稳定剂        0.5~4
发泡剂            0.2~10
填料              0~50                                 
异氰酸酯酯数为0.3~0.75)的比例。
所述异氰酸酯包括芳香族异氰酸酯和脂肪族异氰酸酯。
复合多元醇包括聚醚多元醇、液体聚酯多元醇及植物油多元醇。
所述复合多元醇包含以下三种组合:
多元醇,植物油为基础,官能度是2~4,羟值28~570mg KOH/g,用量是相对复合多元醇总量的重量比5%~35%;
高活性环氧丙烷、环氧乙烷的共聚多元醇,官能度是2~3,羟值28~400 mg KOH/g,用量是相对复合多元醇总量的重量比55%~70%;
环氧丙烷、环氧乙烷的共聚多元醇,官能度是4~7,羟值600~800 mg KOH/g, 用量是相对复合多元醇总量的重量比10%~40%。
所述交联剂是官能度大于2的小分子多元醇或胺类化合物(如甘油)。
所述扩链剂是两个官能度的小分子多元醇或胺类化合物(如乙二醇)。
所述交联剂与扩链剂单独使用或一起使用。
所述复合催化剂为双(2-甲胺基乙基)醚、五甲基二亚乙基三胺、N,Nˊ-二甲基环己胺、三乙烯二胺、辛酸亚锡、二月桂酸二丁基锡和延迟性催化剂中的两种以上的组合。
所述泡沫稳定剂为制备聚氨酯的普通软泡或硬泡所用的泡沫稳定剂。
所述发泡剂为水或水与1,1-二氯-1-氟代乙烷(HCFC-141B)或水与二氯甲烷混合物。
所述填料为无机填料或有机填料。
采用上述方案后,本发明与传统聚氨酯泡棉相比,传统聚氨酯泡棉没有吸水特性,无法被降解;本发明利用天然植物油基聚醚多元醇,添加特种EO/PO(环氧乙烷/环氧丙烷)基聚醚,全水低密度发泡,环保无污染,可以达到吸水、可降解等特性。
总之,本发明制得的聚氨酯泡棉结构细致,开孔,环保,具有优异的吸水、保水能力,能吸收并保有多倍于其本身重量的水分,且可通过配方调节使吸水、保水倍率为10~35倍于其本身重量的水分。
测试保水方法为:裁切相同密度相同规格普通泡棉与本发明描述之泡棉,称重,置于装定量清水的烧杯中,定时(1h,2h,12h,24h)后取出泡棉称重,同时对烧杯称重,烧杯损失的水量以及泡棉增加的重量即为吸水量。
本发明使用植物油聚醚,通过合适的方法制作的泡棉具有良好的吸水、保水性,同时节约了石油资源。
 
具体实施方式
实施例1
A. 将多元醇按比例混合组成多元醇混合物
POLYOL 1: 5%         POLYOL 2: 55%
POLYOL 3:40%
B. 以上述多元醇混合物为基数100份,依次将2份泡沫稳定剂BYK9100硅油,10份水溶于上述多元醇混合物,混合均匀作为A料。
C. 按照异氰酸酯酯数为0.45的比例,取BASF产粗MDI M20S(B料),在25℃与A料反应。
制得的天然植物油基植载泡棉为硬泡,密度27kg/m3,能吸收并保有23倍于其本身重量的水。
实施例2
A. 将多元醇按比例混合组成多元醇混合物
POLYOL 1: 15%         POLYOL 2: 65%
POLYOL 3: 20%
B. 以上述多元醇混合物为基数100份,依次将2份泡沫稳定剂BYK9100(毕克化学产),1.5份乙二醇,0.4份催化剂Dabco 33-LV(空气化工产),8份水,10份碳酸钙混溶于上述多元醇混合物,混合均匀作为A料。
C. 按照异氰酸酯酯数为0.4的比例,取BASF产粗MDI M20S(B料),在25℃与A料反应。
制得的天然植物油基植载泡棉为半硬泡,密度32kg/m3,能吸收并保有26倍于其本身重量的水。植物能生产且根系可贯穿泡棉。
实施例3
A. 将多元醇按比例混合组成多元醇混合物
POLYOL 1: 35%         POLYOL 2: 55%
POLYOL 3: 10%          
B. 以上述多元醇混合物为基数100份,依次将2份泡沫稳定剂L580(迈图产),1份甘油,0.35份催化剂Dabco 33-LV(空气化工产),8份水溶于上述多元醇混合物,混合均匀后加入15份锯末粉,高速混合均匀。
C. 调节原料温度至25℃,按照异氰酸酯酯数为0.4的比例,加入烟台万华产改性MDI(B料),在25℃环境下反应成型。
制得的天然植物油基植载泡棉密度30kg/m3,能吸收并保有30倍于其本身重量的水。吸水后呈脆性,植物能生产且根系可贯穿泡棉。
实施例4
A. 将多元醇按比例混合组成多元醇混合物
POLYOL 1: 20%         POLYOL 2:70%
POLYOL 3:10%          
B. 以上述多元醇混合物为基数100份,依次将1份泡沫稳定剂degussa B8870(德固赛产),1份甘油,1.2份催化剂Dabco 33-LV(空气化工产),0.3份催化剂Dabco BL-19(空气化工产),7.5份水溶于上述多元醇混合物混合均匀作为A料。
C. 取烟台万华产改性MDI作为B料, 调节AB原料温度至25℃,按照异氰酸酯酯数为0.4的比例,使用喷涂发泡成型。
成型后切除表皮,可吸收并保有20倍于本身重量的水分,可栽培植物。

Claims (10)

1.天然植物油基植载泡棉,其特征在于由组合料和异氰酸酯制成;
组合料,按重量比包含:
复合多元醇        100       
交联剂或扩链剂    0~8
复合催化剂        0~3     
泡沫稳定剂        0.5~4
发泡剂            0.2~10
填料              0~50                                 
异氰酸酯酯数为0.3~0.75)的比例。
2.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述异氰酸酯包括芳香族异氰酸酯和脂肪族异氰酸酯。
3.如权利要求1所述的天然植物油基植载泡棉,其特征在于:复合多元醇包括聚醚多元醇、液体聚酯多元醇及植物油多元醇。
4.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述复合多元醇包含以下三种组合:
多元醇,植物油为基础,官能度是2~4,羟值28~570mg KOH/g,用量是相对复合多元醇总量的重量比5%~35%;
高活性环氧丙烷、环氧乙烷的共聚多元醇,官能度是2~3,羟值28~400 mg KOH/g,用量是相对复合多元醇总量的重量比55%~70%;
环氧丙烷、环氧乙烷的共聚多元醇,官能度是4~7,羟值600~800 mg KOH/g, 用量是相对复合多元醇总量的重量比10%~40%。
5.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述交联剂是官能度大于2的小分子多元醇或胺类化合物(如甘油)。
6.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述扩链剂是两个官能度的小分子多元醇或胺类化合物(如乙二醇)。
7.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述交联剂与扩链剂单独使用或一起使用。
8.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述复合催化剂为双(2-甲胺基乙基)醚、五甲基二亚乙基三胺、N,Nˊ-二甲基环己胺、三乙烯二胺、辛酸亚锡、二月桂酸二丁基锡和延迟性催化剂中的两种以上的组合。
9.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述泡沫稳定剂为制备聚氨酯的普通软泡或硬泡所用的泡沫稳定剂。
10.如权利要求1所述的天然植物油基植载泡棉,其特征在于:所述发泡剂为水或水与1,1-二氯-1-氟代乙烷(HCFC-141B)或水与二氯甲烷混合物;所述填料为无机填料或有机填料。
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CN112321791A (zh) * 2020-09-21 2021-02-05 北京化工大学 一种拖把用聚氨酯材料
CN113273470A (zh) * 2021-05-29 2021-08-20 基元化工(福建)有限公司 一种在荒漠化土地里栽种树苗的方法

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