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Plastic pipe fitting-used composite stabilizer and preparation method thereof

A composite stabilizer and plastic pipe fitting technology, applied in the field of plastic stabilizers, can solve the problems of high dosage, high lead content, poor compatibility, etc., and achieve the effects of good fluidity, low production cost, and strong anti-oxidation ability.

Inactive Publication Date: 2012-11-28
KANGTAI PLASTIC SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also some shortcomings in the composite lead salt stabilizer, such as poor compatibility with plastic base materials, high lead content, and large dosage.

Method used

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  • Plastic pipe fitting-used composite stabilizer and preparation method thereof
  • Plastic pipe fitting-used composite stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] First put 350g of stearic acid into the reactor and start to heat up. When the temperature rises to 60°C, stearic acid can be seen to melt slowly. Continue to heat up to 140°C. After the stearic acid is completely melted, add 125g of yellow lead at a speed of 1kg / min. (Every time 25g is thrown, stay for 5-10min so that Huangdan can completely react with stearic acid to produce the product lead stearate); after cooling down to 125°C and stirring for 8min, add 20g of acetic acid and react for a further 2min (to make it consume and not completely react 25g polyethylene wax, 370g tribasic lead sulfate, 90g heavy calcium carbonate, 80g barium stearate, 20g dibasic stearic acid Lead, 10g bisphenol-A, 25g paraffin and 50g dibasic lead phosphite; heat preservation and stirring at 80°C, after the materials are stirred evenly, release the materials to obtain the product; it can also be further granulated (or tableted) to form Granular (or flake) product.

Embodiment 2-3

[0053] The specific preparation method is the same as in Example 1, and its specific formulation is as shown in Table 1.

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Abstract

The present invention belongs to the field of plastic stabilizers, and specifically relates to a plastic pipe fitting-used composite stabilizer and a preparation method thereof. Provided is the plastic pipe fitting-used composite stabilizer, which is composed of the following raw materials by weight: 345-355parts of stearic acid, 122-130 parts of litharge, 40-45 parts of calcium stearate, 15-22 parts of acetic acid, 20-25 parts of polyethylene wax, 368-371 parts of tribasic lead sulfate, 88-95 parts of light calcium carbonate, 75-82 parts of barium stearate, 18-30 parts of dibasic lead stearate, 10-15 parts of bisphenol A, 20-26 parts of paraffin, and 48-55 parts of dibasic lead phosphite. The composite stabilizer of the present invention is suitable for plastic pipe fittings, and is good in stability and lubricating effect, low in cost, and low in lead content.

Description

technical field [0001] The invention belongs to the field of plastic stabilizers. Specifically, the invention relates to a composite stabilizer for plastic pipe fittings and a preparation method thereof. Background technique [0002] As we all know, stabilizers are mainly used in the processing of plastic products, mainly to stabilize the plastic, to ensure that the plastic can not be decomposed at a higher temperature, can be processed smoothly, and made into the desired product. Stabilizers can be divided into five categories according to their chemical structures: base lead salt stabilizers, metal soaps, organotin compounds, organic stabilizers and composite stabilizers. [0003] There are many patents on composite stabilizers for plastics, such as "Preparation method of PVC composite heat stabilizer ZWS (patent application No. 200310109677.0)" etc. Although these patented products have the advantage of being non-toxic, they have the disadvantages of high price and compl...

Claims

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Application Information

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IPC IPC(8): C08K13/02C08K5/098C08K3/30C08K3/26C08K5/13C08K3/32C08L23/06C08L27/06
Inventor 林云青张文霖吴显成
Owner KANGTAI PLASTIC SCI & TECH GRP
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