CN112876650A - 高回弹抗黄发泡型材及其制备工艺 - Google Patents

高回弹抗黄发泡型材及其制备工艺 Download PDF

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CN112876650A
CN112876650A CN202110063902.XA CN202110063902A CN112876650A CN 112876650 A CN112876650 A CN 112876650A CN 202110063902 A CN202110063902 A CN 202110063902A CN 112876650 A CN112876650 A CN 112876650A
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叶刚
李华灵
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Taicang Anyou No Woven Science And Technology Co ltd
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Abstract

本发明揭示了高回弹抗黄发泡型材及其制备工艺，按照质量份数比包括100份TDI组、30～35份MDI组、5～10份IPDI组，TDI组包括异氰酸酯TDI、聚醚、乙二醇、苯酚、聚硅氧烷共聚物，MDI组包括二苯基甲烷二异氰酸酯、聚醚、乙二醇、苯酚、硅油、二氯甲烷；IPDI组包括异佛尔酮二异氰酸酯、二氯甲烷、苯酚、聚硅氧烷共聚物、双二甲氨基乙基醚、硅油。本发明通过TDI组MDI组IPDI组的结合，满足服饰内衬应用需求，抗氧化性较强且异味得到较大改善，具备非常优异地高回弹性能，弹性恢复度得到较大提升，延长了有效使用寿命，耐水洗耐压形变能力尤为显著。采用TDI组和MDI组的分步发泡再结合与IPDI组的共混发泡工艺，发泡纤维混合均匀，制得发泡型材质量稳定可靠，具备较高地经济价值。

Description

高回弹抗黄发泡型材及其制备工艺
技术领域
本发明涉及高回弹抗黄发泡型材及其制备工艺，属于服饰内衬发泡型材的技术领域。
背景技术
服饰内衬包括罩杯、弹性垫片、关节包围等，其需要提供较为可靠地弹性支撑，又必须满足耐水洗抗变色的性能。
传统地服饰内衬采用TDI等材料经过发泡工艺制得，而TDI等材料抗氧化能力较差，需要在制作过程中添加抗黄剂等，一般采用苯酚作为抗黄剂，其遇水会产生刺激性气味，刺激性物质会残留在泡沫海绵中，另外，TDI等材料发泡制得泡沫海绵体弹性恢复度不足，长期使用会存在形变，影响到作为服饰内衬的弹性支撑需求。
目前存在IPDI材料制得的泡沫海绵，又称为脂肪棉或永白棉，该材料制得泡沫海绵具备较高地抗氧化特性，且无异味，同时能提供一定地抗变形和支撑弹性，但是，IPDI材料价格非常昂贵，导致服饰成本非常高，影响到市场竞争。
发明内容
本发明的目的是解决上述现有技术的不足，传统TDI发泡泡沫海绵存在异味及耐形变性较差、而IPDI价格昂贵等问题，提出高回弹抗黄发泡型材及其制备工艺。
为了达到上述目的，本发明所采用的技术方案为：
高回弹抗黄发泡型材，按照质量份数比包括100份TDI组、30～35份MDI组、5～10份IPDI组，
其中，所述TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚100～120份、乙二醇2～5份、苯酚3～5份、聚硅氧烷共聚物1～2份，所述异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：25～35；
所述MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚30～35份、乙二醇2～5份、苯酚2～3份、硅油5～6份、二氯甲烷2～3份；
所述IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、2～3份二氯甲烷、1～2份苯酚、2～3份聚硅氧烷共聚物、2～3份双二甲氨基乙基醚、硅油3～6份。
优选地，所述TDI组的聚醚中PPG重量百分比为65％～70％，余量为POP，所述MDI组的聚醚中PPG重量百分比为75％～85％，余量为POP。
本发明还提出了高回弹抗黄发泡型材的其制备工艺，包括如下步骤：
S1称重配置TDI组、MDI组、IPDI组；
S2将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃～70℃，搅拌时间为15±1min制得TDI发泡材；MDI组的搅拌温度为85℃～95℃，搅拌时间为15±1min制得MDI发泡材；
S3将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃～85℃，搅拌时间为5～6min制得共混发泡材；
S4将IPDI组投入共混发泡材所在反应釜，搅拌温度为85℃～90℃，搅拌15±1min制得高回弹抗黄发泡型材。
优选地，所述步骤S2中，TDI组的原材料初始温度控制在22℃～26℃，并且在投入反应釜内的60s内升温至55℃～70℃，同时以转速2300r/min～2600r/min的搅拌速度维持15±1min。
优选地，所述步骤S2中，MDI组的原材料初始温度控制在25～28℃，并且在投入反应釜内的60s内升温至85℃～95℃，同时以转速3600r/min～3900r/min的搅拌速度维持15±1min。
优选地，所述步骤S3中，通过流量泵的方式将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡，并且输送MDI发泡材的温度维持在80℃～95℃。
优选地，所述步骤S3中，在MDI发泡材投入后，反应釜的搅拌速度为3800r/min～4200r/min。
优选地，所述步骤S4中，IPDI组的原材料初始温度控制在15～26℃，在投入反应釜后，初始搅拌速度维持4200～4300r/min转速2～3min，降速至3200r/min～3500r/min维持3～4min，最终降速至2100～2200r/min维持至少2min。
本发明的有益效果主要体现在：
1.通过TDI组、MDI组、IPDI组的结合，满足作为服饰内衬应用需求，抗氧化性较强且异味得到较大改善，同时具备非常优异地高回弹性能，弹性恢复度得到较大提升，延长了其有效使用寿命，耐水洗耐压形变能力尤为显著。
2.采用TDI组和MDI组的分步发泡再结合与IPDI组的共混发泡工艺，发泡纤维混合均匀，制得发泡型材质量稳定可靠，具备较高地成型可塑性，满足内衬热压复合等生产工艺需求，具备较高地经济价值。
具体实施方式
本发明提供高回弹抗黄发泡型材及其制备工艺。以下对本发明技术方案进行详细描述，以使其更易于理解和掌握。
高回弹抗黄发泡型材，按照质量份数比包括100份TDI组、30～35份MDI组、5～10份IPDI组，其中，TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚100～120份、乙二醇2～5份、苯酚3～5份、聚硅氧烷共聚物1～2份，所述异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：25～35。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚30～35份、乙二醇2～5份、苯酚2～3份、硅油5～6份、二氯甲烷2～3份。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、2～3份二氯甲烷、1～2份苯酚、2～3份聚硅氧烷共聚物、2～3份双二甲氨基乙基醚、硅油3～6份。
TDI组的聚醚中PPG重量百分比为65％～70％，余量为POP，MDI组的聚醚中PPG重量百分比为75％～85％，余量为POP。
通过MDI组、TDI组和IPDI组相巧妙配合，MDI组与TDI组相结合能兼顾发泡型材的抗疲劳强度和弹性柔韧性，满足发泡型材的高回弹及抗疲劳稳定性。而IPDI组能充分抗氧化，极大地降低苯酚用量，在后添加发泡工艺中能具备一定消除异味功能，满足发泡型材的高回弹、抗变色、耐疲劳性。
高回弹抗黄发泡型材的其制备工艺，包括如下步骤：
S1称重配置TDI组、MDI组、IPDI组；
S2将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃～70℃，搅拌时间为15±1min制得TDI发泡材；MDI组的搅拌温度为85℃～95℃，搅拌时间为15±1min制得MDI发泡材；
S3将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃～85℃，搅拌时间为5～6min制得共混发泡材；
S4将IPDI组投入共混发泡材所在反应釜，搅拌温度为85℃～90℃，搅拌15±1min制得高回弹抗黄发泡型材。
步骤S2中，TDI组的原材料初始温度控制在22℃～26℃，并且在投入反应釜内的60s内升温至55℃～70℃，同时以转速2300r/min～2600r/min的搅拌速度维持15±1min。
步骤S2中，MDI组的原材料初始温度控制在25～28℃，并且在投入反应釜内的60s内升温至85℃～95℃，同时以转速3600r/min～3900r/min的搅拌速度维持15±1min。
步骤S3中，通过流量泵的方式将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡，并且输送MDI发泡材的温度维持在80℃～95℃。
步骤S3中，在MDI发泡材投入后，反应釜的搅拌速度为3800r/min～4200r/min。
步骤S4中，IPDI组的原材料初始温度控制在15～26℃，在投入反应釜后，初始搅拌速度维持4200～4300r/min转速2～3min，降速至3200r/min～3500r/min维持3～4min，最终降速至2100～2200r/min维持至少2min。
采用TDI组和IPDI组分步发泡后再与IPDI组共混发泡工艺，满足各组发泡均匀需求，在共混发泡阶段孔隙率更均匀，同时发泡纤维之间存在均匀混合，结合弹性优良，同时抗氧化性得到较大提升，耐水洗能力也较为显著。
实施例一
TDI组：MDI组：IPDI组为100：30：5。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚100份、乙二醇2份、苯酚3份、聚硅氧烷共聚物2份，异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：25，聚醚中PPG重量百分比为65％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚35份、乙二醇3份、苯酚3份、硅油5份、二氯甲烷2份，聚醚中PPG重量百分比为85％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、2份二氯甲烷、1份苯酚、2份聚硅氧烷共聚物、2份双二甲氨基乙基醚、硅油3份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃，搅拌时间为15min制得TDI发泡材；MDI组的搅拌温度为85℃，搅拌时间为151min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃，搅拌时间为5min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为90℃，搅拌15min制得样品一。
实施例二
TDI组：MDI组：IPDI组为100：30：10。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚110份、乙二醇4份、苯酚3份、聚硅氧烷共聚物1份，异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：28，聚醚中PPG重量百分比为70％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚32份、乙二醇4份、苯酚3份、硅油6份、二氯甲烷2份，聚醚中PPG重量百分比为75％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、3份二氯甲烷、2份苯酚、2份聚硅氧烷共聚物、2份双二甲氨基乙基醚、硅油5份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为65℃，搅拌时间为15min制得TDI发泡材；MDI组的搅拌温度为90℃，搅拌时间为16min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为85℃，搅拌时间为6min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为90℃，搅拌15min制得样品二。
实施例三
TDI组：MDI组：IPDI组为100：33：5。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚115份、乙二醇3份、苯酚5份、聚硅氧烷共聚物2份，所述异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：35，聚醚中PPG重量百分比为70％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚35份、乙二醇5份、苯酚3份、硅油6份、二氯甲烷3份，聚醚中PPG重量百分比为75％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、3份二氯甲烷、2份苯酚、3份聚硅氧烷共聚物、2份双二甲氨基乙基醚、硅油5份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为65℃，搅拌时间为14min制得TDI发泡材；MDI组的搅拌温度为95℃，搅拌时间为15min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃℃，搅拌时间为6min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为90℃，搅拌15min制得样品三。
实施例四
TDI组：MDI组：IPDI组为100：35：5。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚105份、乙二醇3份、苯酚4份、聚硅氧烷共聚物2份，异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：31，聚醚中PPG重量百分比为67％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚32份、乙二醇4份、苯酚2份、硅油5份、二氯甲烷3份，聚醚中PPG重量百分比为84％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、3份二氯甲烷、1份苯酚、3份聚硅氧烷共聚物、3份双二甲氨基乙基醚、硅油4份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃，搅拌时间为15min制得TDI发泡材；MDI组的搅拌温度为95℃，搅拌时间为15min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为85℃，搅拌时间为5min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为90℃，搅拌14min制得样品四。
实施例五
TDI组：MDI组：IPDI组为100：35：10。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚120份、乙二醇5份、苯酚5份、聚硅氧烷共聚物2份，所述异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：35，聚醚中PPG重量百分比为70％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚35份、乙二醇5份、苯酚3份、硅油6份、二氯甲烷3份，聚醚中PPG重量百分比为82％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、3份二氯甲烷、2份苯酚、3份聚硅氧烷共聚物、3份双二甲氨基乙基醚、硅油6份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃，搅拌时间为16min制得TDI发泡材；MDI组的搅拌温度为85℃，搅拌时间为16min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为83℃，搅拌时间为6min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为90℃，搅拌16min制得样品五。
实施例六
TDI组：MDI组：IPDI组为100：34：10。
TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚110份、乙二醇3份、苯酚4份、聚硅氧烷共聚物1份，异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：25，聚醚中PPG重量百分比为70％、余量为POP。
MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚35份、乙二醇3份、苯酚2份、硅油6份、二氯甲烷2份，聚醚中PPG重量百分比为85％、余量为POP。
IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、3份二氯甲烷、1份苯酚、2份聚硅氧烷共聚物、2份双二甲氨基乙基醚、硅油6份。
将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为70℃，搅拌时间为15min制得TDI发泡材；MDI组的搅拌温度为95℃，搅拌时间为15min制得MDI发泡材；将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃，搅拌时间为5min制得共混发泡材；将IPDI组投入共混发泡材所在反应釜，搅拌温度为85℃，搅拌14min制得样品六。
对样品一至样品六进行测试：
经过水洗及抗压测试满足作为罩杯特性需求，氧化变色测试达到5级，同时刺激性异味封闭检测达到内衣内衬的标准。
样品一至样品六的横纵向开度率在221～275％开度区间范围内，在极限拉伸频次1万次测试状态下，其横纵向开度衰减率均低于11.7％，相较传统发泡型材，其弹性恢复度得到显著提升，同时满足抗黄和异味指标。
通过以上描述可以发现，本发明高回弹抗黄发泡型材及其制备工艺，通过TDI组、MDI组、IPDI组的结合，满足作为服饰内衬应用需求，抗氧化性较强且异味得到较大改善，同时具备非常优异地高回弹性能，弹性恢复度得到较大提升，延长了其有效使用寿命，耐水洗耐压形变能力尤为显著。采用TDI组和MDI组的分步发泡再结合与IPDI组的共混发泡工艺，发泡纤维混合均匀，制得发泡型材质量稳定可靠，具备较高地成型可塑性，满足内衬热压复合等生产工艺需求，具备较高地经济价值。
以上对本发明的技术方案进行了充分描述，需要说明的是，本发明的具体实施方式并不受上述描述的限制，本领域的普通技术人员依据本发明的精神实质在结构、方法或功能等方面采用等同变换或者等效变换而形成的所有技术方案，均落在本发明的保护范围之内。

Claims (8)

1.高回弹抗黄发泡型材，其特征在于：
按照质量份数比包括100份TDI组、30～35份MDI组、5～10份IPDI组，
其中，所述TDI组按照质量份数比包括1000份异氰酸酯TDI、聚醚100～120份、乙二醇2～5份、苯酚3～5份、聚硅氧烷共聚物1～2份，所述异氰酸酯TDI的异构体比例2，4-TDI：2，6TDI为100：25～35；
所述MDI组按照质量份数比包括1000份二苯基甲烷二异氰酸酯、聚醚30～35份、乙二醇2～5份、苯酚2～3份、硅油5～6份、二氯甲烷2～3份；
所述IPDI组按照质量份数比包括1000份异佛尔酮二异氰酸酯、2～3份二氯甲烷、1～2份苯酚、2～3份聚硅氧烷共聚物、2～3份双二甲氨基乙基醚、硅油3～6份。
2.根据权利要求1所述高回弹抗黄发泡型材，其特征在于：
所述TDI组的聚醚中PPG重量百分比为65％～70％，余量为POP，所述MDI组的聚醚中PPG重量百分比为75％～85％，余量为POP。
3.基于权利要求1～2所述高回弹抗黄发泡型材的其制备工艺，其特征在于包括如下步骤：
S1称重配置TDI组、MDI组、IPDI组；
S2将TDI组和MDI组分别投入反应釜进行搅拌发泡处理，其中TDI组的搅拌温度为55℃～70℃，搅拌时间为15±1min制得TDI发泡材；MDI组的搅拌温度为85℃～95℃，搅拌时间为15±1min制得MDI发泡材；
S3将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡处理，搅拌温度为80℃～85℃，搅拌时间为5～6min制得共混发泡材；
S4将IPDI组投入共混发泡材所在反应釜，搅拌温度为85℃～90℃，搅拌15±1min制得高回弹抗黄发泡型材。
4.根据权利要求3所述高回弹抗黄发泡型材的其制备工艺，其特征在于：
所述步骤S2中，TDI组的原材料初始温度控制在22℃～26℃，并且在投入反应釜内的60s内升温至55℃～70℃，同时以转速2300r/min～2600r/min的搅拌速度维持15±1min。
5.根据权利要求3所述高回弹抗黄发泡型材的其制备工艺，其特征在于：
所述步骤S2中，MDI组的原材料初始温度控制在25～28℃，并且在投入反应釜内的60s内升温至85℃～95℃，同时以转速3600r/min～3900r/min的搅拌速度维持15±1min。
6.根据权利要求3所述高回弹抗黄发泡型材的其制备工艺，其特征在于：
所述步骤S3中，通过流量泵的方式将MDI发泡材投入TDI发泡材所在反应釜进行共混发泡，并且输送MDI发泡材的温度维持在80℃～95℃。
7.根据权利要求3所述高回弹抗黄发泡型材的其制备工艺，其特征在于：
所述步骤S3中，在MDI发泡材投入后，反应釜的搅拌速度为3800r/min～4200r/min。
8.根据权利要求3所述高回弹抗黄发泡型材的其制备工艺，其特征在于：
所述步骤S4中，IPDI组的原材料初始温度控制在15～26℃，在投入反应釜后，初始搅拌速度维持4200～4300r/min转速2～3min，降速至3200r/min～3500r/min维持3～4min，最终降速至2100～2200r/min维持至少2min。
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CN102492114A (zh) * 2011-12-14 2012-06-13 浙江川洋海绵有限公司 一种软质聚氨酯泡沫塑料及生产工艺
CN104877101A (zh) * 2015-06-11 2015-09-02 山东一诺威新材料有限公司 高承载、低密度、低气味的高回弹泡沫材料及其制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492114A (zh) * 2011-12-14 2012-06-13 浙江川洋海绵有限公司 一种软质聚氨酯泡沫塑料及生产工艺
CN104877101A (zh) * 2015-06-11 2015-09-02 山东一诺威新材料有限公司 高承载、低密度、低气味的高回弹泡沫材料及其制备方法

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