CN112480599A - 一种具有良好耐冲击性能的氨基模塑料型材 - Google Patents
一种具有良好耐冲击性能的氨基模塑料型材 Download PDFInfo
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Abstract
本发明公开了一种具有良好耐冲击性能的氨基模塑料型材,由以下重量百分比的成分组成:尿素15‑25%、甲醛30‑42%、三聚氰胺6‑10%、乌洛托品0.2‑0.5%、润滑剂1‑2%、硬脂酸丁脂3‑5%、颜料0.5‑2%、聚氨酯弹性体6‑12%、纳米碳酸钙0.15‑0.25%和农作物纤维粉余量。本发明通过加入由芳香族多异氰酸酯和聚酯多元醇聚合而成的聚氨基甲酸酯,可以显著提升氨基模塑料的弹性和耐冲击性能,经检测,其耐缺口冲击强度可以达到2.7‑2.9KJ/m2。
Description
技术领域
本发明涉及塑料型材技术领域,特别是涉及一种具有良好耐冲击性能的氨基模塑料型材。
背景技术
氨基模塑料是采用氨基树脂,配合α-纤维素、固化剂及其它助剂进行捏合,经粉碎、球磨后得到用于压制成型的模塑料,氨基模塑料具有优良的耐电弧性能,材料硬度高,耐刮伤,价格便宜等优点,广泛用于电器零部件、日用品及食具等。随着氨基模塑料制品的应用领域不断扩大,环境状况特别复杂,对制品本身带来了很大的破坏,因此开发具有耐冲击性能的氨基模塑料具有积极的现实意义。
发明内容
有鉴于此,本发明的目的是提供一种具有良好耐冲击性能的氨基模塑料型材。
一种具有良好耐冲击性能的氨基模塑料型材,由模塑料和PE保湿功能薄膜组成;
所述的模塑料,由以下重量百分比的成分组成:尿素15-25%、甲醛溶液30-42%、三聚氰胺6-10%、乌洛托品0.2-0.5%、润滑剂1-2%、硬脂酸丁脂3-5%、颜料0.5-2%、聚氨酯弹性体6-12%、纳米碳酸钙0.15-0.25%和农作物纤维粉余量。
优选的,所述的聚氨酯弹性体为聚氨基甲酸酯。
优选的,所述的聚氨基甲酸酯由芳香族多异氰酸酯和聚酯多元醇聚合而成。
优选的,所述的聚氨基甲酸酯的制备方法为:采用计量搅拌芳香族多异氰酸酯和聚酯多元醇,反应期间加入pH为3.5-4.5的丙酮溶剂,反应完全后,静置24-36小时即可。
优选的,所述的氨基模塑料型材的耐缺口冲击强度为2.7-2.9KJ/m2。
本发明所述的具有良好耐冲击性能的氨基模塑料型材的制备方法,包括以下步骤:
A、在密封环境中按照常规方法将甲醛溶液、乌洛托品和尿素进行聚合反应后即得到氨基液体树脂;
B、将氨基液体树脂放入真空造粒捏合机内,加入三聚氰胺和农作物纤维粉,加热至70-75℃,捏合35-45min,抽真空至上述混合料中的水分的质量分数为1.4-1.6%,将混合料放入破碎磨粉机中,球磨至400目,即得到干粉树脂;
C、将干粉树脂与模塑料的其余原料混合,分散后即得絮状干粉纤维模塑料;
D、取干粉纤维模塑料,在其上、下两面分别覆盖PE保湿功能薄膜作为保湿隔离层,在温度为40-60℃的条件下用压机压制成片状,即可。
本发明所提供的一种具有良好耐冲击性能的氨基模塑料型材,由以下重量百分比的成分组成:尿素15-25%、甲醛30-42%、三聚氰胺6-10%、乌洛托品0.2-0.5%、润滑剂1-2%、硬脂酸丁脂3-5%、颜料0.5-2%、聚氨酯弹性体6-12%、纳米碳酸钙0.15-0.25%和农作物纤维粉余量。本发明通过加入由芳香族多异氰酸酯和聚酯多元醇聚合而成的聚氨基甲酸酯,可以显著提升氨基模0塑料的弹性和耐冲击性能,经检测,其耐缺口冲击强度可以达到2.7-2.9KJ/m2。
具体实施方式
对本发明的实施例进行详细说明,但是本发明可以根据权利要求限定和覆盖的多种不同方式实施。
实施例1
一种具有良好耐冲击性能的氨基模塑料型材,由模塑料和PE保湿功能薄膜组成;所述的模塑料,由以下重量百分比的成分组成:尿素22%、甲醛溶液37%、三聚氰胺8.5%、乌洛托品0.35%、润滑剂1.2%、硬脂酸丁脂3.7%、颜料0.8%、聚氨酯弹性体8.5%、纳米碳酸钙0.18%和农作物纤维粉余量。
所述的聚氨酯弹性体为聚氨基甲酸酯。
所述的聚氨基甲酸酯的制备方法为:采用计量搅拌芳香族多异氰酸酯和聚酯多元醇,反应期间加入pH为3.8的丙酮溶剂,反应完全后,静置32小时即可。
本发明所述的具有良好耐冲击性能的氨基模塑料型材的制备方法,包括以下步骤:
A、在密封环境中按照常规方法将甲醛溶液、乌洛托品和尿素进行聚合反应后即得到氨基液体树脂;
B、将氨基液体树脂放入真空造粒捏合机内,加入三聚氰胺和农作物纤维粉,加热至72℃,捏合40min,抽真空至上述混合料中的水分的质量分数为1.5%,将混合料放入破碎磨粉机中,球磨至400目,即得到干粉树脂;
C、将干粉树脂与模塑料的其余原料混合,分散后即得絮状干粉纤维模塑料;
D、取干粉纤维模塑料,在其上、下两面分别覆盖PE保湿功能薄膜作为保湿隔离层,在温度为55℃的条件下用压机压制成片状,即可。
所述的氨基模塑料型材的耐缺口冲击强度为2.85KJ/m2。
实施例2
一种具有良好耐冲击性能的氨基模塑料型材,由模塑料和PE保湿功能薄膜组成;所述的模塑料,由以下重量百分比的成分组成:尿素25%、甲醛溶液30%、三聚氰胺10%、乌洛托品0.2%、润滑剂2%、硬脂酸丁脂3%、颜料2%、聚氨酯弹性体6%、纳米碳酸钙0.15%和农作物纤维粉余量。
所述的聚氨酯弹性体为聚氨基甲酸酯。
所述的聚氨基甲酸酯的制备方法为:采用计量搅拌芳香族多异氰酸酯和聚酯多元醇,反应期间加入pH为3.5的丙酮溶剂,反应完全后,静置36小时即可。
本发明所述的具有良好耐冲击性能的氨基模塑料型材的制备方法,包括以下步骤:
A、在密封环境中按照常规方法将甲醛溶液、乌洛托品和尿素进行聚合反应后即得到氨基液体树脂;
B、将氨基液体树脂放入真空造粒捏合机内,加入三聚氰胺和农作物纤维粉,加热至70℃,捏合45min,抽真空至上述混合料中的水分的质量分数为1.4%,将混合料放入破碎磨粉机中,球磨至400目,即得到干粉树脂;
C、将干粉树脂与模塑料的其余原料混合,分散后即得絮状干粉纤维模塑料;
D、取干粉纤维模塑料,在其上、下两面分别覆盖PE保湿功能薄膜作为保湿隔离层,在温度为60℃的条件下用压机压制成片状,即可。
所述的氨基模塑料型材的耐缺口冲击强度为2.89KJ/m2。
实施例3
一种具有良好耐冲击性能的氨基模塑料型材,由模塑料和PE保湿功能薄膜组成;所述的模塑料,由以下重量百分比的成分组成:尿素15%、甲醛溶液42%、三聚氰胺6%、乌洛托品0.5%、润滑剂1%、硬脂酸丁脂5%、颜料0.5%、聚氨酯弹性体12%、纳米碳酸钙0.25%和农作物纤维粉余量。
所述的聚氨酯弹性体为聚氨基甲酸酯。
所述的聚氨基甲酸酯的制备方法为:采用计量搅拌芳香族多异氰酸酯和聚酯多元醇,反应期间加入pH为4.5的丙酮溶剂,反应完全后,静置24小时即可。
本发明所述的具有良好耐冲击性能的氨基模塑料型材的制备方法,包括以下步骤:
A、在密封环境中按照常规方法将甲醛溶液、乌洛托品和尿素进行聚合反应后即得到氨基液体树脂;
B、将氨基液体树脂放入真空造粒捏合机内,加入三聚氰胺和农作物纤维粉,加热至75℃,捏合35min,抽真空至上述混合料中的水分的质量分数为1.6%,将混合料放入破碎磨粉机中,球磨至400目,即得到干粉树脂;
C、将干粉树脂与模塑料的其余原料混合,分散后即得絮状干粉纤维模塑料;
D、取干粉纤维模塑料,在其上、下两面分别覆盖PE保湿功能薄膜作为保湿隔离层,在温度为40℃的条件下用压机压制成片状,即可。
所述的氨基模塑料型材的耐缺口冲击强度为2.75KJ/m2。
对比例1
将实施例1中的聚氨酯弹性体去除,其余配比和制备方法不变。
所述的氨基模塑料型材的耐缺口冲击强度为1.39KJ/m2。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (6)
1.一种具有良好耐冲击性能的氨基模塑料型材,其特征在于,由模塑料和PE保湿功能薄膜组成;所述的模塑料,由以下重量百分比的成分组成:尿素15-25%、甲醛溶液30-42%、三聚氰胺6-10%、乌洛托品0.2-0.5%、润滑剂1-2%、硬脂酸丁脂3-5%、颜料0.5-2%、聚氨酯弹性体6-12%、纳米碳酸钙0.15-0.25%和农作物纤维粉余量。
2.如权利要求1所述的具有良好耐冲击性能的氨基模塑料型材,其特征在于,所述的聚氨酯弹性体为聚氨基甲酸酯。
3.如权利要求2所述的具有良好耐冲击性能的氨基模塑料型材,其特征在于,所述的聚氨基甲酸酯由芳香族多异氰酸酯和聚酯多元醇聚合而成。
4.如权利要求2所述的具有良好耐冲击性能的氨基模塑料型材,其特征在于,所述的聚氨基甲酸酯的制备方法为:采用计量搅拌芳香族多异氰酸酯和聚酯多元醇,反应期间加入pH为3.5-4.5的丙酮溶剂,反应完全后,静置24-36小时即可。
5.如权利要求1所述的具有良好耐冲击性能的氨基模塑料型材,其特征在于,所述的氨基模塑料型材的耐缺口冲击强度为2.7-2.9KJ/m2。
6.如权利要求1-5任一所述的具有良好耐冲击性能的氨基模塑料型材,其特征在于,其特征在于,其制备方法,包括以下步骤:
A、在密封环境中按照常规方法将甲醛溶液、乌洛托品和尿素进行聚合反应后即得到氨基液体树脂;
B、将氨基液体树脂放入真空造粒捏合机内,加入三聚氰胺和农作物纤维粉,加热至70-75℃,捏合35-45min,抽真空至上述混合料中的水分的质量分数为1.4-1.6%,将混合料放入破碎磨粉机中,球磨至400目,即得到干粉树脂;
C、将干粉树脂与模塑料的其余原料混合,分散后即得絮状干粉纤维模塑料;
D、取干粉纤维模塑料,在其上、下两面分别覆盖PE保湿功能薄膜作为保湿隔离层,在温度为40-60℃的条件下用压机压制成片状,即可。
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CN110627980A (zh) * | 2018-06-21 | 2019-12-31 | 南京百美塑业有限公司 | 一种低收缩率氨基模塑料 |
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CN101921454A (zh) * | 2010-05-21 | 2010-12-22 | 常州乔尔塑料有限公司 | 一种新型低收缩率氨基模塑料及其制备方法 |
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