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山东塑料瓶厂家介绍影响塑胶产品褪色的因素
更新时间:2019-05-18 14:43:42 点击数:

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三、耐热性 颜料的热稳定性是指在加工温度下颜料热失重、变色、褪色的程度。有机化合物的颜料则在一定温度下会发生分子结构的变化和少量分解。无机颜料的成份为金属氧化物、盐类,热稳定性好,耐热性能高。实际我们在生产过程需要,如果是需要高温加热的塑胶制品,则需要选择更有耐热性能的颜料,以确保颜色变色,褪色,保证产品的整体外观效果。 四、耐酸碱性 着色塑料制品的褪色和着色剂的耐化学品性有关。如钼铬红耐稀酸,但对碱敏感,镉黄不耐酸,这二种颜料和酚醛树脂对某些着色剂起强还原作用,严重影响着色剂的耐热性、耐候性并发生褪色。更多有关山东塑料瓶的相关内容请访问我们的网址:tianzehu.com

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