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PVC (polyvinyl chloride) stabilizer for injection molding and preparation method thereof

A stabilizer and auxiliary stabilizer technology, which is applied in the field of PVC stabilizer for injection molding and its preparation, can solve the problems of intolerant to vulcanization pollution, poisonous lead compounds, poor transparency, etc., achieve no dust pollution, improve product quality, and be easy to mold effect

Inactive Publication Date: 2016-12-21
JIANGSU LIANMENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Lead salt stabilizer is the traditional and earliest used PVC heat stabilizer. Its stabilizing effect is very good, but all lead compounds are poisonous and cause serious pollution to the environment. They have poor transparency, are not resistant to vulcanization pollution, and have no lubricity. The initial coloring property is poor, so it cannot be used in food packaging materials or products with more human contact

Method used

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  • PVC (polyvinyl chloride) stabilizer for injection molding and preparation method thereof

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preparation example Construction

[0029] Such as figure 1 Shown, the preparation method of PVC stabilizer for injection molding of the present invention may further comprise the steps:

[0030] Step 1, 1%-19% of fatty acid salt, 2%-12% of auxiliary stabilizer, 23%-29% of zeolite, 12%-16% of lubricant, 13%-15% of phosphate, maleic acid Calcium 8%-10%, antioxidant 6%-20% are mixed in a mixing box to form a mixture;

[0031] Step 2, the mixture is homogenized;

[0032] Step 3, the homogenized raw materials are granulated by granulation equipment;

[0033] Step 4, packing and storage after granulation.

Embodiment 1

[0035] Mix 1% fatty acid salt, 12% auxiliary stabilizer, 29% zeolite, 16% lubricant, 15% phosphate, 10% calcium maleate, and 17% antioxidant in a mixing box to form a mixture material; Step 2, homogenize the mixture; Step 3, the homogenized raw material is granulated by granulation equipment; Step 4, granulated and packed into storage.

Embodiment 2

[0037] 19% of fatty acid salt, 2% of auxiliary stabilizer, 23% of zeolite, 12% of lubricant, 14% of phosphate, 10% of calcium maleate, and 20% of antioxidant are mixed in a mixing box to form a mixture ; Step 2, homogenizing the mixture; Step 3, granulating the homogenized raw materials through granulation equipment; Step 4, packaging and storing the granulated materials.

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Abstract

The invention discloses a PVC (polyvinyl chloride) stabilizer for injection molding and a preparation method thereof. The PVC stabilizer for injection molding is composed of the following raw materials in percentage by mass: 1-19% of fatty acid salt, 2-12% of auxiliary stabilizer, 23-29% of zeolite, 12-16% of lubricant, 13-15% of phosphate, 8-10% of calcium maleate and 6-20% of antioxidant. The PVC stabilizer for injection molding has the advantages of high heat working stability, favorable thermal aging resistance, favorable lubricating property, high dispersity, high plasticity and excellent processibility, and scientifically resolves the contradiction between lubrication and plasticization; and the quality of the product is obviously enhanced.

Description

technical field [0001] The invention relates to a stabilizer and a preparation method thereof, in particular to a PVC stabilizer for injection molding and a preparation method thereof. Background technique [0002] Injection molding in China began to develop in the 1970s. At that time, it was mainly in Hong Kong. The plastic industry and plastic machinery industry once occupied a major position in Hong Kong's overall industry. With China's reform and opening up, the plastics industry has achieved unprecedented development, and the high-quality environment in the mainland has made up for the lack of resources in Hong Kong. [0003] Now, plastic products are gradually replacing metal products, and the plastic molding industry is still full of potential. The demand for plastic products in the world market has grown steadily; at the same time, after more than 20 years of growth in the domestic market, not only can manufacture mid-range and low-end products and molding machinery...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K5/134C08K5/098C08K3/30C08K3/34C08K3/32
CPCC08K13/02C08K3/32C08K3/34C08K5/098C08K5/1345C08K2003/321C08K2201/014C08L27/06C08L2201/08C08L2205/03C08L91/06C08L29/04
Inventor 于治中王京胜周腊芳
Owner JIANGSU LIANMENG CHEM
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