Method for laboratory verification of dispersibility of soft pvc powder additives based on calcium stearate and soybean oil

A technology of calcium stearate and soybean oil, which is applied in the direction of analyzing materials, instruments, surface/boundary effects, etc., can solve the problem of different plasticization degrees of formula materials, affecting the dispersion performance of powder additives, and incomplete powder plasticization and other issues to achieve the effective effect of the test method
CN109799171BActive Publication Date: 2021-04-13百尔罗赫新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
百尔罗赫新材料科技有限公司
Publication Date
2021-04-13

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Abstract

The invention belongs to the technical field of polymer materials and discloses a method for laboratory verification of the dispersibility of soft PVC powder additives based on calcium stearate and soybean oil. The method is under the same processing conditions, calcium stearate and soybean oil are applied to the method for verifying the dispersibility of soft PVC powder additives in the laboratory, utilizing the plasticizing and lubricating effects of soybean oil and calcium stearate, Observe whether there is uneven dispersion of different powder additives in the formula under the condition of ensuring good plasticization of the formula, effectively avoiding the occurrence of the above situation, and improving the dispersion of laboratory personnel in testing PVC soft powder additives The effectiveness of performance has realized the effective control of different powder additives in the laboratory.
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Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and relates to a technical application of applying calcium stearate and soybean oil to a method for verifying the mixing and dispersing properties of PVC powder additives in a laboratory. Background technique

[0002] When different powder additives are applied to soft PVC formulations, uneven powder mixing and dispersion may occur in the granulation process, resulting in materials blocking the filter screen or powder clumping in finished products, which will cause large-scale production. Big loss. The existing laboratory method for verifying the dispersibility of soft PVC powder additives is to add different powder additives into the simple laboratory soft PVC formula, mix them with a double-roller mill, remove them, and observe the Powder dispersion. However, different powder additives will make the plasticization degree of the formula material different. Some additives themselves h...

Claims

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