CN112358600A - 一种聚氨酯汽车遮阳板材料调配工艺 - Google Patents
一种聚氨酯汽车遮阳板材料调配工艺 Download PDFInfo
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Abstract
本发明公开了一种聚氨酯汽车遮阳板材料调配工艺,所述该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、三乙烯二胺‑2‑乙基己酸盐(TEDA‑EH)、DBU苯酚盐(DBU‑P)、DBU‑2‑乙基己酸盐(DBU‑EH)、1,4‑丁二醇(DBU)、一氟二氯乙烷(HCFC‑141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),所述该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器。该聚氨酯汽车遮阳板材料调配工艺,采用创新的生产流程和原料混合工艺,较传统的一步法聚氨酯原料调配发泡工艺,能适时延长聚氨酯黑料和白料混合后发泡的时间,从而保证原料能在模具中充分发泡,保证产品的质量。
Description
技术领域
本发明涉及汽车遮阳板生产技术领域,具体为一种聚氨酯汽车遮阳板材料调配工艺。
背景技术
聚氨酯一种高分子化合物,分为聚酯型和聚醚型二大类,可制成聚氨酯塑料如泡沫塑料、聚氨酯纤维、聚氨酯橡胶及弹性体,其中硬质聚氨酯塑料质轻、隔音、绝热性能优越、耐化学药品,电性能好,易加工,吸水率低,主要用于建筑、汽车、航空工业、保温隔热的结构材料,汽车行业中最常见的聚氨酯制品是汽车遮阳板,汽车遮阳板安装在驾驶位和副驾驶位上方,为司机和前排乘客遮挡来自前方和侧方的阳光直射,可以进行上下和左右独立旋转,是车辆内部的车顶装饰子系统重要的组成部件,集安全性、功能性与装饰性于一身,在聚氨酯汽车遮阳板的生产过程中,就需要对聚氨酯黑料和白料中的各组分进行定量调配混合,再将混合后的浆料注入模具中进行发泡,发泡完成后,进行冷却脱模和切割修整,就制成了聚氨酯汽车遮阳板成品。
在使用传统一步法生产聚氨酯汽车遮阳板的过程中发现了下述问题:
传统一步法生产过程中,由于催化剂的选择单一,无法通过催化剂适当控制发泡时间,需要快速的将聚氨酯黑料和白料的所有成分倒入机械搅拌结构中快速搅拌均匀,并快速的通过注射机注射至模具中,避免搅拌和注射间隔和持续时间过长,导致聚氨酯在未注入模具前就已经开始发泡,影响正常注射和最终发泡产品的密度。
所以就需要针对上述提出的问题设计一种聚氨酯汽车遮阳板材料调配工艺。
发明内容
本发明的目的在于提供一种聚氨酯汽车遮阳板材料调配工艺,以解决上述背景技术中提出传统一步法生产使用的催化剂单一,无法通过催化剂适当控制发泡时间,需要快速的将聚氨酯黑料和白料的所有成分倒入机械搅拌结构中快速搅拌均匀,并快速的通过注射机注射至模具中,生产容错率低,产品密度不足的次品率高的问题。
为实现上述目的,本发明提供如下技术方案:一种聚氨酯汽车遮阳板材料调配工艺,所述该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、DBU苯酚盐(DBU-P)、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),所述该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器,所述聚氨酯汽车遮阳板材料调配工艺流程如下:
(一)准备工作:
(1)、将二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)1:1定量取出倒入浆料釜中混合,得到聚氨酯黑料,并保温25℃~30℃;
(2)、将浆料釜中混合二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)得到的聚氨酯黑料泵入高速搅拌釜中,并保温20℃~25℃;
(3)、随后逐个称量聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、DBU苯酚盐(DBU-P)、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)和水的量,放置备用;
(二)调配混合、注入和脱模
步骤一:先向泵入聚氨酯黑料的高速搅拌釜中加入聚醚单体,并同时启动高速搅拌釜,令高速搅拌釜内安装的搅拌机构工作进行连续搅拌,随后依次向高速搅拌釜中加入1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、三乙烯二胺-2-乙基己酸盐(TEDA-EH)或DBU苯酚盐(DBU-P)或DBU-2-乙基己酸盐(DBU-EH)和季戊四醇,得到混合料;
步骤二:高速搅拌釜持续搅拌混合料7~10min,并对高速搅拌釜进行保温,温度保持在50℃~60℃;
步骤三:在高速搅拌釜持续搅拌过程中,将汽车遮阳板模具打开,在模具型腔内壁均匀涂布脱模剂,并对模具进行加热保温,温度保持在50℃~60℃;
步骤四:搅拌时间到后,立刻使用与高速搅拌釜出料结构连接的高压注射机,将混合得到的聚氨酯原料导出,并将聚氨酯原料注射进模具的型腔内,使用压力机将模具闭模,等待聚氨酯原料充分发泡,等待时间为1h;
步骤五:聚氨酯原料在模具中发泡1h后,使用冷凝器对模具进行降温,令模具降至室温,持续降温时间为10~20min;
步骤六:最后打开模具的上下部分,取出冷却成型的产品,然后使用切割机对汽车遮阳板边缘多余发泡溢出部分进行切割,得到汽车遮阳板成品。
优选的,所述步骤1中
高速搅拌釜内安装的搅拌机构的转速≥500r/min,且搅拌机构转速以100r/min、300r/min和500r/min进行阶段性转速提高,每阶段持续10s;
聚醚单体、1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、三乙烯二胺-2-乙基己酸盐(TEDA-EH)或DBU苯酚盐(DBU-P)或DBU-2-乙基己酸盐(DBU-EH)和季戊四醇的质量比为100:2.0:0.5:0.2:0.8:0.15:0.15。
优选的,所述步骤四中
高压注射机以4~5kg/min的喷出速度,将聚氨酯原料注射进模具的型腔内,同时对高速搅拌釜进行温度为50℃~60℃的持续保温。
与现有技术相比,本发明的有益效果是:该聚氨酯汽车遮阳板材料调配工艺,采用创新的生产流程和原料混合工艺,较传统的一步法聚氨酯原料调配发泡工艺,能适时延长聚氨酯黑料和白料混合后发泡的时间,并配合高速搅拌釜和高压注射机,保证混合料在搅拌和注射时不会发泡,从而保证原料能在模具中充分发泡,保证产品的质量。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅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做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。
本发明提供一种技术方案:
实施例一:
一种聚氨酯汽车遮阳板材料调配工艺,该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器,该聚氨酯汽车遮阳板材料调配工艺流程如下:
(一)准备工作:
(1)、将二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)1:1定量取出倒入浆料釜中混合,得到聚氨酯黑料,并保温25℃~30℃;
(2)、将浆料釜中混合二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)得到的聚氨酯黑料泵入高速搅拌釜中,并保温20℃~25℃;
(3)、随后逐个称量聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)和水的量,放置备用;
(二)调配混合、注入和脱模
步骤一:先向泵入聚氨酯黑料的高速搅拌釜中加入聚醚单体,并同时启动高速搅拌釜,令高速搅拌釜内安装的搅拌机构工作进行连续搅拌,随后依次向高速搅拌釜中加入1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、三乙烯二胺-2-乙基己酸盐(TEDA-EH)和季戊四醇,得到混合料;
步骤二:高速搅拌釜持续搅拌混合料7~10min,并对高速搅拌釜进行保温,温度保持在50℃~60℃;
步骤三:在高速搅拌釜持续搅拌过程中,将汽车遮阳板模具打开,在模具型腔内壁均匀涂布脱模剂,并对模具进行加热保温,温度保持在50℃~60℃;
步骤四:搅拌时间到后,立刻使用与高速搅拌釜出料结构连接的高压注射机,将混合得到的聚氨酯原料导出,并将聚氨酯原料注射进模具的型腔内,使用压力机将模具闭模,等待聚氨酯原料充分发泡,等待时间为1h;
步骤五:聚氨酯原料在模具中发泡1h后,使用冷凝器对模具进行降温,令模具降至室温,持续降温时间为10~20min;
步骤六:最后打开模具的上下部分,取出冷却成型的产品,然后使用切割机对汽车遮阳板边缘多余发泡溢出部分进行切割,得到汽车遮阳板成品。
实施例二:
一种聚氨酯汽车遮阳板材料调配工艺,该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、DBU苯酚盐(DBU-P)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器,该聚氨酯汽车遮阳板材料调配工艺流程如下:
(一)准备工作:
(1)、将二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)1:1定量取出倒入浆料釜中混合,得到聚氨酯黑料,并保温25℃~30℃;
(2)、将浆料釜中混合二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)得到的聚氨酯黑料泵入高速搅拌釜中,并保温20℃~25℃;
(3)、随后逐个称量聚醚单体、含氯硅油、季戊四醇、DBU苯酚盐(DBU-P)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)和水的量,放置备用;
(二)调配混合、注入和脱模
步骤一:先向泵入聚氨酯黑料的高速搅拌釜中加入聚醚单体,并同时启动高速搅拌釜,令高速搅拌釜内安装的搅拌机构工作进行连续搅拌,随后依次向高速搅拌釜中加入1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、DBU苯酚盐(DBU-P)和季戊四醇,得到混合料;
步骤二:高速搅拌釜持续搅拌混合料7~10min,并对高速搅拌釜进行保温,温度保持在50℃~60℃;
步骤三:在高速搅拌釜持续搅拌过程中,将汽车遮阳板模具打开,在模具型腔内壁均匀涂布脱模剂,并对模具进行加热保温,温度保持在50℃~60℃;
步骤四:搅拌时间到后,立刻使用与高速搅拌釜出料结构连接的高压注射机,将混合得到的聚氨酯原料导出,并将聚氨酯原料注射进模具的型腔内,使用压力机将模具闭模,等待聚氨酯原料充分发泡,等待时间为1h;
步骤五:聚氨酯原料在模具中发泡1h后,使用冷凝器对模具进行降温,令模具降至室温,持续降温时间为10~20min;
步骤六:最后打开模具的上下部分,取出冷却成型的产品,然后使用切割机对汽车遮阳板边缘多余发泡溢出部分进行切割,得到汽车遮阳板成品。
实施例三:
一种聚氨酯汽车遮阳板材料调配工艺,该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器,该聚氨酯汽车遮阳板材料调配工艺流程如下:
(一)准备工作:
(1)、将二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)1:1定量取出倒入浆料釜中混合,得到聚氨酯黑料,并保温25℃~30℃;
(2)、将浆料釜中混合二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)得到的聚氨酯黑料泵入高速搅拌釜中,并保温20℃~25℃;
(3)、随后逐个称量聚醚单体、含氯硅油、季戊四醇、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)和水的量,放置备用;
(二)调配混合、注入和脱模
步骤一:先向泵入聚氨酯黑料的高速搅拌釜中加入聚醚单体,并同时启动高速搅拌釜,令高速搅拌釜内安装的搅拌机构工作进行连续搅拌,随后依次向高速搅拌釜中加入1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、DBU-2-乙基己酸盐(DBU-EH)和季戊四醇,得到混合料;
步骤二:高速搅拌釜持续搅拌混合料7~10min,并对高速搅拌釜进行保温,温度保持在50℃~60℃;
步骤三:在高速搅拌釜持续搅拌过程中,将汽车遮阳板模具打开,在模具型腔内壁均匀涂布脱模剂,并对模具进行加热保温,温度保持在50℃~60℃;
步骤四:搅拌时间到后,立刻使用与高速搅拌釜出料结构连接的高压注射机,将混合得到的聚氨酯原料导出,并将聚氨酯原料注射进模具的型腔内,使用压力机将模具闭模,等待聚氨酯原料充分发泡,等待时间为1h;
步骤五:聚氨酯原料在模具中发泡1h后,使用冷凝器对模具进行降温,令模具降至室温,持续降温时间为10~20min;
步骤六:最后打开模具的上下部分,取出冷却成型的产品,然后使用切割机对汽车遮阳板边缘多余发泡溢出部分进行切割,得到汽车遮阳板成品。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (3)
1.一种聚氨酯汽车遮阳板材料调配工艺,其特征在于:所述该聚氨酯汽车遮阳板材料调配工艺所需的原料有:聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、DBU苯酚盐(DBU-P)、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)、水、二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI),所述该聚氨酯汽车遮阳板材料调配工艺所需的仪器设备有:浆料釜、高速搅拌釜、高压注射机、模具和冷凝器,所述聚氨酯汽车遮阳板材料调配工艺流程如下:
(一)准备工作:
(1)、将二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)1:1定量取出倒入浆料釜中混合,得到聚氨酯黑料,并保温25℃~30℃;
(2)、将浆料釜中混合二苯基甲烷二异氧酸酯(MDI)和多苯基多亚甲基多异氰酸酯(PAPI)得到的聚氨酯黑料泵入高速搅拌釜中,并保温20℃~25℃;
(3)、随后逐个称量聚醚单体、含氯硅油、季戊四醇、三乙烯二胺-2-乙基己酸盐(TEDA-EH)、DBU苯酚盐(DBU-P)、DBU-2-乙基己酸盐(DBU-EH)、1,4-丁二醇(DBU)、一氟二氯乙烷(HCFC-141b)和水的量,放置备用;
(二)调配混合、注入和脱模
步骤一:先向泵入聚氨酯黑料的高速搅拌釜中加入聚醚单体,并同时启动高速搅拌釜,令高速搅拌釜内安装的搅拌机构工作进行连续搅拌,随后依次向高速搅拌釜中加入1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、三乙烯二胺-2-乙基己酸盐(TEDA-EH)或DBU苯酚盐(DBU-P)或DBU-2-乙基己酸盐(DBU-EH)和季戊四醇,得到混合料;
步骤二:高速搅拌釜持续搅拌混合料7~10min,并对高速搅拌釜进行保温,温度保持在50℃~60℃;
步骤三:在高速搅拌釜持续搅拌过程中,将汽车遮阳板模具打开,在模具型腔内壁均匀涂布脱模剂,并对模具进行加热保温,温度保持在50℃~60℃;
步骤四:搅拌时间到后,立刻使用与高速搅拌釜出料结构连接的高压注射机,将混合得到的聚氨酯原料导出,并将聚氨酯原料注射进模具的型腔内,使用压力机将模具闭模,等待聚氨酯原料充分发泡,等待时间为1h;
步骤五:聚氨酯原料在模具中发泡1h后,使用冷凝器对模具进行降温,令模具降至室温,持续降温时间为10~20min;
步骤六:最后打开模具的上下部分,取出冷却成型的产品,然后使用切割机对汽车遮阳板边缘多余发泡溢出部分进行切割,得到汽车遮阳板成品。
2.根据权利要求1所述的一种聚氨酯汽车遮阳板材料调配工艺,其特征在于:所述步骤1中
高速搅拌釜内安装的搅拌机构的转速≥500r/min,且搅拌机构转速以100r/min、300r/min和500r/min进行阶段性转速提高,每阶段持续10s;
聚醚单体、1,4-丁二醇(DBU)、水、一氟二氯乙烷(HCFC-141b)、含氯硅油、三乙烯二胺-2-乙基己酸盐(TEDA-EH)或DBU苯酚盐(DBU-P)或DBU-2-乙基己酸盐(DBU-EH)和季戊四醇的质量比为100:2.0:0.5:0.2:0.8:0.15:0.15。
3.根据权利要求1所述的一种聚氨酯汽车遮阳板材料调配工艺,其特征在于:所述步骤四中
高压注射机以4~5kg/min的喷出速度,将聚氨酯原料注射进模具的型腔内,同时对高速搅拌釜进行温度为50℃~60℃的持续保温。
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