CN114921076A - 一种应用于新能源的smc-h片材配方及制做工艺 - Google Patents
一种应用于新能源的smc-h片材配方及制做工艺 Download PDFInfo
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Abstract
本发明公开了一种应用于新能源的SMC‑H片材配方及制做工艺,以百分比计,SMC原料配方为:不饱和聚酯树脂20%,低收缩剂6%,低轮廓剂4%,氢氧化铝23%,碳酸钙12%,PE微粉2%,色浆2%,硬脂酸锌1%,TBPB固化剂0.3%,增强材料28%,增稠剂0.01%和其它助剂1.69%;SMC‑H制做工艺,包括:步骤S1,树脂糊制备;步骤S2,SMC混合;步骤S3,SMC增稠;步骤S4,片材成品;氢氧化铝粉作为阻燃填料,填料相互接近絮凝,是因为填料分子相互吸引的范德华力;选用有阻燃效果的氢氧化铝粉时,在火焰下吸收热量释放结合水而产生自熄作用,并能改善制品耐水性,电绝缘性和防止聚合物裂解。
Description
技术领域
本发明涉及SMC材料技术领域,尤其涉及一种应用于新能源的SMC-H配方及制做工艺。
背景技术
SMC(Sheet Molding Compound)是指一种新型的热固性玻璃钢模压材料,是由不饱和聚酯树脂、低收缩添加剂、填料、固化剂、增稠剂、脱模剂和玻璃纤维等组成的一种干片状的预浸料,随着国内生产制造技术、模压成型技术的不断提高,模具成本的降低、政府对工作环境等要求的提高,原来许多由手糊、喷射等工艺进行成型的产品,固化时间长、生产效率低、劳动力大、对环境有污染, 开始逐步使用SMC模压成型工艺。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,而提出的一种应用于新能源的SMC-H片材配方及制做工艺。
为了实现上述目的,本发明采用了如下技术方案:
一种应用于新能源的SMC-H片材配方,以百分比计,SMC原料配方为:不饱和聚酯树脂20%,低收缩剂6%,低轮廓剂4%,氢氧化铝23%,碳酸钙12%,PE微粉2%,色浆2%,硬脂酸锌1%,TBPB固化剂0.3%,增强材料28%,增稠剂0.01%和其它助剂1.69%。
优选的,所述增强材料可采用玻璃纤维。
优选的,所述增稠剂可采用氧化镁。
优选的,一种应用于新能源的SMC-H制做工艺,包括:
步骤S1,树脂糊制备;
步骤S2,SMC混合;
步骤S3,SMC增稠;
步骤S4,片材成品。
优选的,所述步骤S1中包括:
步骤S11,不饱和聚酯树脂、低收缩剂、低轮廓剂、PE粉、硬脂酸锌、TBPB固化剂和其他助剂倒入高速分散机内,在低剪切力下混合搅拌均匀;
步骤S12,搅拌均匀后,倒入氢氧化铝和碳酸钙;
步骤S13,继续搅拌均匀;
步骤S14,搅拌均匀后,树脂糊制成并放入在线混合机。
优选的,所述步骤S2中包括:
步骤S21,将色浆和氧化镁倒入在线混合机内和树脂糊搅拌均匀;
步骤S22,开动复合机,下薄膜放卷,经下树脂刮刀后,薄膜被均匀地涂上一定厚度的树脂糊;
步骤S23,当其经过纤维沉降区时,玻璃纤维经切割后均匀地沉降其上;
步骤S24,承按了玻璃纤维的薄膜,在复台辊处与以同样方式涂敷树脂糊的上薄膜复合,将玻纤夹在中间,形成夹层结构;
步骤S25,产品装箱。
优选的,所述步骤S3中,SMC增稠在带有鼓风设备的熟化室内进行加速增稠。
优选的,所述加速增稠温度为45℃ , 时间约24小时。
与现有技术相比,本发明的有益效果是:
本发明设计一种应用于新能源的SMC-H片材配方及制做工艺,氢氧化铝粉作为阻燃填料,填料相互接近絮凝,是因为填料分子相互吸引的范德华力;如果能将一种带相同电荷和侧长链的分散剂分子吸附包裹在填料分子表面,就能使填料分子间产生静电排斥作用及空间位阻作用,抵消范德华力拉大分子间距离,有效起到解团聚作用;选用有阻燃效果的氢氧化铝粉时,在火焰下吸收热量释放结合水而产生自熄作用,并能改善制品耐水性,电绝缘性和防止聚合物裂解;选用氧化镁进行增稠,前期增稠速度快,后期因为反应完全粘度容易趋于稳定;大大缩短熟化时间,并且用量少;初期浸渍阶段,树脂增稠足够缓慢,保证玻纤良好的浸渍;增稠阶段速度要足够快,能够尽快进入模压操作;模压料达到模压粘度时,粘度保持平稳,有较长的贮存寿命;SMC片材表面不粘手,易于操作;SMC成型时,玻璃纤维能够流向成型品的所有部分,保证成型品各部分物理、化学性能的稳定;使成型品具有好的外观。
附图说明
图1为本发明提出的SMC原料表;
图2为本发明提出的SMC制备流程示意图;
图3为本发明提出的树脂糊制备流程示意图;
图4为本发明提出的SMC复合流程示意图。
具体实施方式
下面将结合本发明实施例中的附图,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。
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制;术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性;此外,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。
参照图1至图4,一种应用于新能源的SMC-H片材配方,以百分比计,SMC原料配方为:不饱和聚酯树脂20%,低收缩剂6%,低轮廓剂4%,氢氧化铝23%,碳酸钙12%,PE微粉2%,色浆2%,硬脂酸锌1%,TBPB固化剂0.3%,增强材料28%,增稠剂0.01%和其它助剂1.69%。
其中,增强材料可采用玻璃纤维,增稠剂可采用氧化镁;氢氧化铝粉作为阻燃填料,填料相互接近絮凝,是因为填料分子相互吸引的范德华力。如果能将一种带相同电荷和侧长链的分散剂分子吸附包裹在填料分子表面,就能使填料分子间产生静电排斥作用及空间位阻作用,抵消范德华力拉大分子间距离,有效起到解团聚作用;选用有阻燃效果的氢氧化铝粉时,在火焰下吸收热量释放结合水而产生自熄作用,并能改善制品耐水性,电绝缘性和防止聚合物裂解。
一种应用于新能源的SMC-H制做工艺,包括:步骤S1,树脂糊制备;步骤S2,SMC混合;步骤S3,SMC增稠;步骤S4,片材成品。
步骤S1中包括:步骤S11,不饱和聚酯树脂、低收缩剂、低轮廓剂、PE粉、硬脂酸锌、TBPB固化剂和其他助剂倒入高速分散机内,在低剪切力下混合搅拌均匀;步骤S12,搅拌均匀后,倒入氢氧化铝和碳酸钙;步骤S13,继续搅拌均匀;步骤S14,搅拌均匀后,树脂糊制成并放入在线混合机。
步骤S2中包括:步骤S21,将色浆和氧化镁倒入在线混合机内和树脂糊搅拌均匀;步骤S22,开动复合机,下薄膜放卷,经下树脂刮刀后,薄膜被均匀地涂上一定厚度的树脂糊;步骤S23,当其经过纤维沉降区时,玻璃纤维经切割后均匀地沉降其上;步骤S24,承按了玻璃纤维的薄膜,在复台辊处与以同样方式涂敷树脂糊的上薄膜复合,将玻纤夹在中间,形成夹层结构;步骤S25,产品装箱。
步骤S3中,SMC增稠在带有鼓风设备的熟化室内进行加速增稠,加速增稠温度为45℃ , 时间约24小时;大大缩短熟化时间,并且用量少;增稠阶段速度要足够快,能够尽快进入模压操作;选用氧化镁进行增稠,前期增稠速度快,后期因为反应完全粘度容易趋于稳定;大大缩短熟化时间,并且用量少;初期浸渍阶段,树脂增稠足够缓慢,保证玻纤良好的浸渍;增稠阶段速度要足够快,能够尽快进入模压操作;模压料达到模压粘度时,粘度保持平稳,有较长的贮存寿命;SMC片材表面不粘手,易于操作;SMC成型时,玻璃纤维能够流向成型品的所有部分,保证成型品各部分物理、化学性能的稳定;使成型品具有好的外观。
以上,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 (8)
1.一种应用于新能源的SMC-H片材配方,其特征在于,以百分比计,SMC原料配方为:不饱和聚酯树脂20%,低收缩剂6%,低轮廓剂4%,氢氧化铝23%,碳酸钙12%,PE微粉2%,色浆2%,硬脂酸锌1%,TBPB固化剂0.3%,增强材料28%,增稠剂0.01%和其它助剂1.69%。
2.根据权利要求1所述一种应用于新能源的SMC-H片材配方,其特征在于,所述增强材料可采用玻璃纤维。
3.根据权利要求1所述一种应用于新能源的SMC-H片材配方,其特征在于,所述增稠剂可采用氧化镁。
4.一种应用于新能源的SMC-H制做工艺,其特征在于,包括:
步骤S1,树脂糊制备;
步骤S2,SMC混合;
步骤S3,SMC增稠;
步骤S4,片材成品。
5.根据权利要求4所述一种应用于新能源的SMC-H制做工艺,其特征在于,所述步骤S1中包括:
步骤S11,不饱和聚酯树脂、低收缩剂、低轮廓剂、PE粉、硬脂酸锌、TBPB固化剂和其他助剂倒入高速分散机内,在低剪切力下混合搅拌均匀;
步骤S12,搅拌均匀后,倒入氢氧化铝和碳酸钙;
步骤S13,继续搅拌均匀;
步骤S14,搅拌均匀后,树脂糊制成并放入在线混合机。
6.根据权利要求4所述一种应用于新能源的SMC-H制做工艺,其特征在于,所述步骤S2中包括:
步骤S21,将色浆和氧化镁倒入在线混合机内和树脂糊搅拌均匀;
步骤S22,开动复合机,下薄膜放卷,经下树脂刮刀后,薄膜被均匀地涂上一定厚度的树脂糊;
步骤S23,当其经过纤维沉降区时,玻璃纤维经切割后均匀地沉降其上;
步骤S24,承按了玻璃纤维的薄膜,在复台辊处与以同样方式涂敷树脂糊的上薄膜复合,将玻纤夹在中间,形成夹层结构;
步骤S25,产品装箱。
7.根据权利要求4所述一种应用于新能源的SMC-H制做工艺,其特征在于,所述步骤S3中,SMC增稠在带有鼓风设备的熟化室内进行加速增稠。
8.根据权利要求7所述一种应用于新能源的SMC-H制做工艺,其特征在于,所述加速增稠温度为45℃ , 时间约24小时。
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