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Preparation method of ABS plastic standard sample containing tiny amount of lead

A technology of ABS plastic and standard sample, applied in the field of plastics, can solve the problems affecting the quality detection accuracy of heavy metal content of ABS plastic, lack of stability, etc., and achieve the effect of good uniformity of standard material, little influence of matrix and high stability

Pending Publication Date: 2020-02-21
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when the lead content detection of ABS plastic product, adopt and compare with the ABS standard sample (standard sample) of known lead content more, yet, lack the good standard sample of stability in the prior art, have had a strong impact on ABS plastic heavy metal content quality detection accuracy

Method used

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  • Preparation method of ABS plastic standard sample containing tiny amount of lead
  • Preparation method of ABS plastic standard sample containing tiny amount of lead
  • Preparation method of ABS plastic standard sample containing tiny amount of lead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of preparation method that contains trace lead ABS plastic standard sample, its step is:

[0014] a) Dry the ABS at 85°C for 3 hours;

[0015] b) Weigh 50.00g of waste ABS, 0.05g of lead stearate, 0.50g of phthalate coupling agent, ABS:lead stearate=1000:1 (mass ratio);

[0016] c) Mix ABS, lead stearate, and coupling agent evenly and add it to the torque rheometer at a speed of 30 rpm and a temperature of 210°C, and take it out after 15 minutes of reaction;

[0017] d) Extruded through an extruder and crushed into pellets by a crusher. The measured lead content is shown in Table 1 below.

[0018] Table 1 Example 1 gained standard contains trace lead ABS pellets

[0019]

Embodiment 2

[0021] A kind of preparation method that contains trace lead ABS plastic standard sample, its step is:

[0022] a) Dry the ABS at 85°C for 3 hours;

[0023] b) Weigh 50.00g of waste ABS, 0.10g of lead stearate, 1.00g of phthalate coupling agent, ABS:lead stearate=1000:2 (mass ratio);

[0024] c) Mix ABS, lead stearate, and coupling agent evenly and add it to the torque rheometer at a speed of 30 rpm and a temperature of 210°C, and take it out after 15 minutes of reaction;

[0025] d) Extruded through an extruder and crushed into pellets by a crusher. The measured lead content is shown in Table 2 below.

[0026] Table 2 embodiment 2 gained standard contains trace lead ABS pellet

[0027]

Embodiment 3

[0029] A kind of preparation method that contains trace lead ABS plastic standard sample, its step is:

[0030] a) Dry the ABS at 85°C for 3 hours;

[0031] b) Weigh 50.00 g of waste ABS, 0.15 g of lead stearate, 1.50 g of phthalate coupling agent, ABS:lead stearate=1000:3 (mass ratio);

[0032] c) Mix ABS, lead stearate, and coupling agent evenly and add it to the torque rheometer at a speed of 30 rpm and a temperature of 210°C, and take it out after 15 minutes of reaction;

[0033] d) Extruded through an extruder and crushed into pellets by a crusher. The measured lead content is shown in Table 3 below.

[0034] Table 3 embodiment 3 gained standard contains trace lead ABS pellets

[0035]

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PUM

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Abstract

The invention belongs to the field of plastics, and particularly relates to a preparation method of an ABS plastic standard sample containing a tiny amount of lead. The standard sample is obtained byadding a lead-containing reagent and a coupling agent into an ABS plastic, performing mixing until uniformity and mixing the obtained mixture in a torque rheometer. The ABS plastic is used as a targetmatrix, heavy metal element is added, and melt-blending is performed to achieve chain extension to obtain the ABS plastic standard sample with controllable heavy metal content.

Description

technical field [0001] The invention belongs to the field of plastics, and in particular relates to a method for preparing an ABS plastic standard sample containing a trace amount of lead. Background technique [0002] The European Union announced the WEEE directive and the ROHS directive in 2003. The basic content is that from July 1, 2006, the use of lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr 6+ ) and other hazardous substances in electronic and electrical equipment products, the restrictions on my country's foreign trade in this field are becoming increasingly serious. How to effectively respond to this instruction has become a serious concern for manufacturers of electronic and electrical products in my country. [0003] The application proportion of plastics in the electronic and electrical industry is increasing, and there are many types of plastics, including 18 major types of resins and more than 200 varieties. ABS plastic has excellent mechanic...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08K5/098C08K5/10
CPCC08K5/098C08K5/10C08L55/02
Inventor 李真叶青霞刘瑾夏莉王卓吴东兴张定仑樊炳宇
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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