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Novel calcium-zinc stabilizer for PVC-U plate and preparation method thereof

A calcium-zinc stabilizer and PVC-U technology, which is applied in the field of new calcium-zinc stabilizer and its preparation, can solve the problems of waste of raw materials, poor production stability, and decreased gloss of products, so as to avoid roughness and reduce precipitation , the effect of good stability of lubricating components

Inactive Publication Date: 2020-06-26
LINAN HUALI PLASTIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And it also has some insurmountable shortcomings, that is, the thermal stability is extremely poor, and its thermal decomposition leads to the darkening of the product color and the decline of various indicators. It is necessary to use a thermal stabilizer to improve its thermal stability.
[0003] Calcium-zinc composite stabilizer is a composite stabilizer made of calcium, zinc and other metal soaps and salts as the main body, and other additives such as phosphite. It is an environmentally friendly stabilizer and is the main PVC-U environmental protection profile. The stabilizer used is mainly composed of calcium stearate and zinc stearate. In the production of PVC-U profiles, there are the following disadvantages: 1. There are needle-like precipitations in the production process, the gloss of the product decreases, and the production stability becomes poor. ;2. Poor welding in the inner cavity of the product, prone to broken tendons, requires irregular mold cleaning, which affects production efficiency and causes waste of raw materials

Method used

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  • Novel calcium-zinc stabilizer for PVC-U plate and preparation method thereof
  • Novel calcium-zinc stabilizer for PVC-U plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A new type of calcium zinc stabilizer for PVC-U boards is processed from the following components by weight:

[0033] 380 parts of zinc stearate, 90 parts of calcium stearate, 15 parts of soybean oil, 18 parts of live calcium, 1 part of antioxidant, 12 parts of internal lubricant, 15 parts of external lubricant, 70 parts of modified hydrotalcite powder, 2 parts of β-copper (acetylacetonate), 40 parts of Seike.

[0034] Among the present invention, the preparation method of described modified hydrotalcite powder is as follows:

[0035] Step S1: Raw material hydrotalcite is roughly selected, crushed to a certain particle size, and a certain amount of water and pulping aids are added to make a slurry. The pulping aids are composed of ethylhexyl phosphoric acid, sodium lauryl sulfate and Polyethylene glycol with a molecular weight of 200;

[0036] Step S2: purification;

[0037] Step S3: organic activation, adding a certain amount of organic ammonium salt and an activati...

Embodiment 2

[0041] The new calcium-zinc stabilizer for PVC-U board is processed from the following components by weight:

[0042] 420 parts of zinc stearate, 100 parts of calcium stearate, 20 parts of soybean oil, 22 parts of live calcium, 3 parts of antioxidant, 16 parts of internal lubricant, 20 parts of external lubricant, 80 parts of modified hydrotalcite powder, 4 parts of β-copper (benzoylacetone), 60 parts of Seike.

[0043] Among the present invention, the preparation method of described modified hydrotalcite powder is as follows:

[0044] Step S1: Raw material hydrotalcite is roughly selected, crushed to a certain particle size, and a certain amount of water and pulping aids are added to make a slurry. The pulping aids are composed of ethylhexyl phosphoric acid, sodium lauryl sulfate and Polyethylene glycol with a molecular weight of 600;

[0045] Step S2: purification;

[0046] Step S3: organic activation, adding a certain amount of organic ammonium salt and an activation aux...

Embodiment 3

[0050] A new type of calcium zinc stabilizer for PVC-U boards is processed from the following components by weight:

[0051] 400 parts of zinc stearate, 96 parts of calcium stearate, 18 parts of soybean oil, 19.6 parts of live calcium, 2 parts of antioxidant, 15 parts of internal lubricant, 18 parts of external lubricant, 75 parts of modified hydrotalcite powder, 3 parts of β-dicopper (acetylacetone: benzoylacetone = 1:1), 50 parts of Sac.

[0052] Among the present invention, the preparation method of described modified hydrotalcite powder is as follows:

[0053] Step S1: Raw material hydrotalcite is roughly selected, crushed to a certain particle size, and a certain amount of water and pulping aids are added to make a slurry. The pulping aids are composed of ethylhexyl phosphoric acid, sodium lauryl sulfate and Polyethylene glycol with a molecular weight of 400;

[0054] Step S2: purification;

[0055] Step S3: organic activation, adding a certain amount of organic ammoni...

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Abstract

The invention relates to a novel calcium-zinc stabilizer for a PVC-U plate and a preparation method thereof. The novel calcium-zinc stabilizer is prepared from the following components, by weight: 380-420 parts of zinc stearate, 90-100 parts of calcium stearate, 15-20 parts of soybean oil, 18-22 parts of active calcium, 1-3 parts of an antioxidant, 12-16 parts of an internal lubricant, 15-20 partsof an external lubricant, 70-80 parts of modified hydrotalcite powder, 2-4 parts of beta-cupric and 40-60 parts of 1,3,5-Tris(2-hydroxyethyl)cyanuric acid. According to the inventor discovery of thepresent application, the modified hydrotalcite powder has a good lubricating component stability effect; specifically, the modified hydrotalcite powder has a plurality of active sites and lubricatingcomponents can be adsorbed and / or anchored; meanwhile, the inherent thermal stability of hydrotalcite powder is utilized; when the temperature in air is lower than 200 DEG C, only interlayer moistureis lost, the structure of the PVC-U plate is not affected; when the temperature reaches 250-450 DEG C after heating, more moisture is lost, CO2 is generated, and lubricating components are highly dispersed, adsorbed and / or anchored in the modified hydrotalcite powder, so that precipitation is greatly reduced, and unsmoothness of the PVC-U plate is avoided.

Description

technical field [0001] The invention relates to a novel calcium-zinc stabilizer for PVC-U boards and a preparation method thereof, belonging to the technical field of composite calcium-zinc stabilizer processing. Background technique [0002] PVC is one of the five general-purpose plastics, widely used in industry, construction, agriculture and other fields. And it also has some insurmountable shortcomings, that is, its thermal stability is extremely poor, and its thermal decomposition causes the color of the product to become darker, and various indicators drop, so it is necessary to use a thermal stabilizer to improve its thermal stability. [0003] Calcium-zinc composite stabilizer is a composite stabilizer made of calcium, zinc and other metal soaps and salts as the main body, and other additives such as phosphite. It is an environmentally friendly stabilizer and is the main PVC-U environmental protection profile. The stabilizer used is mainly composed of calcium steara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/04C08K3/26C08K5/098C08L91/00C08L27/06
CPCC08K3/26C08K5/098C08K9/04C08K9/08C08K13/06C08K2201/014C08L27/06C08L2201/08C08L91/00
Inventor 楼超民陈云海刘忠清杨家成
Owner LINAN HUALI PLASTIC
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