CN105911061A - 一种活性炭酸钙受热后白度差异的控制与检测方法 - Google Patents

一种活性炭酸钙受热后白度差异的控制与检测方法 Download PDF

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CN105911061A
CN105911061A CN201610455974.8A CN201610455974A CN105911061A CN 105911061 A CN105911061 A CN 105911061A CN 201610455974 A CN201610455974 A CN 201610455974A CN 105911061 A CN105911061 A CN 105911061A
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whiteness
calcium carbonate
activated calcium
difference
heating
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李荣顺
蒋华庭
岑永杰
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Huazhijie Plastic Building Material Co Ltd
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Huazhijie Plastic Building Material Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44Sample treatment involving radiation, e.g. heat
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/251Colorimeters; Construction thereof

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Abstract

本发明涉及一种活性炭酸钙受热后白度差异的控制与检测方法,包括以下步骤:a)、将扁形称量瓶洗净,烘干后承重;b)、在扁形称量瓶中称取10.5g活性炭酸钙;c)、将盛装活性炭酸钙的扁平称量瓶放在200±2℃烘箱中,加热30min后取出并盖上瓶盖;d)、冷却至常温后,用白度仪测量白度值;e)、计算热白度差:热白度差=白度‑热白度。本发明的技术方案,具有以下优势,塑料加工企业可以通过控制活性炭酸钙的热白度的检测值,减小活性炭酸钙加工受热对制品颜色稳定性的影响。

Description

一种活性炭酸钙受热后白度差异的控制与检测方法
技术领域
本发明涉及一种活性炭酸钙受热后白度差异的控制与检测方法。
背景技术
活性炭酸钙作为塑料制品的增强剂与填料,广泛应用在注塑、挤出行业中。无论是注塑加工还是挤出加工都是在树脂料达到熔融塑化之后成型,即一定的温度和压力下进行。为了保证制品颜色的稳定性,要求包括活性炭酸钙在内的所有原材料,在一定会的温度下的颜色稳定性。而目HG/T 2567-2006《工业活性沉淀碳酸钙》标准中,所有项目都没有对其受热后颜色变化差异进行要求(见表1)。表1中的白度值,只是活性炭酸钙产品在使用前的原始白度。
表1
发明内容
为了解决上述的技术问题,本发明的目的是提供一种活性炭酸钙受热后白度差异的控制与检测方法,并且通过该方法得出活性炭酸钙热白度差,减小其对产品颜色稳定性的影响。
为了实现上述目的,本发明采用了以下的技术方案:
一种活性炭酸钙受热后白度差异的控制与检测方法,包括以下步骤:
a)、将扁形称量瓶洗净,烘干后承重;
b)、在扁形称量瓶中称取10.5g活性炭酸钙;
c)、将盛装活性炭酸钙的扁平称量瓶放在200±2℃烘箱中,加热30min后取出并盖上瓶盖;
d)、冷却至常温后,用白度仪测量白度值;
e)、计算热白度差:热白度差=白度-热白度。
作为优选方案:所述步骤d)中白度值的测量方法与HG/T2567-2006标准中的4.10白度的测定中所述的方法相同。
本发明的技术方案,具有以下三个优势,首先、塑料加工企业可以通过控制活性炭酸钙的热白度的检测值,减小活性炭酸钙加工受热对制品颜色稳定性的影响。其次、活性炭酸钙企业可以通过控制活性炭酸钙的热白度的检测值,为塑料加工企业提供对制品颜色稳定性影响不大的活性炭酸钙原材料。最后、能避免活性炭酸钙企业的产品符合HG/T 2567-2006,但塑料加工企业应用却因制品颜色不稳定而产生的纠纷。
具体实施方式
一种活性炭酸钙受热后白度差异的控制与检测方法,包括以下步骤:
a)、将扁形称量瓶洗净,烘干后承重;
b)、在扁形称量瓶中称取10.5g活性炭酸钙;
c)、将盛装活性炭酸钙的扁平称量瓶放在200±2℃烘箱中,加热30min后取出并盖上瓶盖;
d)、冷却至常温后,用白度仪测量白度值;
e)、计算热白度差:热白度差=白度-热白度。
所述步骤d)中白度值的测量方法与HG/T2567-2006标准中的4.10白度的测定中所述的方法相同。
通过实践证明,活性炭酸钙受热后白度值(简称热白度)与受热前的白度值的差异(简称热白度差)越大,对塑料制品颜色的影响越大,并伴随红绿、黄蓝项差异,并且白度差大于1.5以上,影响比较明显,因此控制白度差≤1.5。通过对行业中多家活性炭酸钙的检测与应用,碳酸钙质量合格稳定、活化剂质量稳定的企业产品,其热白度值都能控制在1.5以下,并且加工应用中对塑料制品的颜色影响很小。
应当指出,以上实施例仅是本发明的代表性例子。本发明还可以有许多变形。凡是依据本发明的实质对以上实施例所作的任何简单修改、等同变化与修饰,均应认为属于本发明的保护范围。

Claims (2)

1.一种活性炭酸钙受热后白度差异的控制与检测方法,其特征在于:包括以下步骤:
a)、将扁形称量瓶洗净,烘干后承重;
b)、在扁形称量瓶中称取10.5g活性炭酸钙;
c)、将盛装活性炭酸钙的扁平称量瓶放在200±2℃烘箱中,加热30min后取出并盖上瓶盖;
d)、冷却至常温后,用白度仪测量白度值;
e)、计算热白度差:热白度差=白度-热白度。
2.根据权利要求1所述的一种活性炭酸钙受热后白度差异的控制与检测方法,其特征在于:所述步骤d)中白度值的测量方法与HG/T2567-2006标准中的4.10白度的测定中所述的方法相同。
CN201610455974.8A 2016-06-22 2016-06-22 一种活性炭酸钙受热后白度差异的控制与检测方法 Pending CN105911061A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118973A (ja) * 1991-10-28 1993-05-14 Jeol Ltd 試料冷却装置
CN101318685A (zh) * 2008-06-28 2008-12-10 福建省万旗非金属材料有限公司 利用低品位石灰石活化罐活化制备超细活性纳米碳酸钙的方法
CN101629883A (zh) * 2009-08-10 2010-01-20 贵州大学 一种对加热盘条进行风冷热处理的实验方法及风冷装置
CN102565052A (zh) * 2012-02-24 2012-07-11 北京普赞生物技术有限公司 一种检测食品中亚硝酸盐含量的快速检测试剂盒及应用

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118973A (ja) * 1991-10-28 1993-05-14 Jeol Ltd 試料冷却装置
CN101318685A (zh) * 2008-06-28 2008-12-10 福建省万旗非金属材料有限公司 利用低品位石灰石活化罐活化制备超细活性纳米碳酸钙的方法
CN101629883A (zh) * 2009-08-10 2010-01-20 贵州大学 一种对加热盘条进行风冷热处理的实验方法及风冷装置
CN102565052A (zh) * 2012-02-24 2012-07-11 北京普赞生物技术有限公司 一种检测食品中亚硝酸盐含量的快速检测试剂盒及应用

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李荣顺,牛建华,张留网: "活性碳酸钙热白度与白度的差异对PVC-U型材颜色的影响", 《塑料助剂》 *

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