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Calcium/zinc thermal stabilizer polyvinyl chloride transparent hard film and preparation method thereof

A heat stabilizer, polyvinyl chloride technology, applied in the field of polymer materials and its processing, can solve the problem that the heavy metal tin has not been completely solved, and achieve good dispersion and performance effects

Inactive Publication Date: 2011-09-07
JIANGSU GUANGHUI PACKAGE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Some recent studies have shown that the combination of organotin and calcium / zinc heat stabilizers can be used in transparent hard products, but the problem of heavy metal tin has not been completely solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Formula composition

[0040] Material name

parts by weight

Polyvinyl chloride resin (SG-5)

100

Calcium Phosphite / Zinc Heat Stabilizer

1.3

Bis(β-aminocrotonate)diglycol Thioate

0.8

β-diketone

0.3

Processing aid ACR

1.0

Butyl stearate

0.6

Alcohol stearate

0.3

N,N'-Ethylenebisstearamide

0.3

[0041] 2. Mixing process

[0042] 1. Weigh various raw and auxiliary materials according to the formula and set aside.

[0043] 2. Put the calcium phosphite / zinc heat stabilizer and β-diketone into the ball mill to grind, after 25 minutes, add N,N'-ethylenebisstearamide, butyl stearate and stearic alcohol to continue Grind, take out after 5min.

[0044] 3. Add polyvinyl chloride resin, grinding mixture, bis(β-aminocrotonic acid) thiodiglycol ester, and processing aid ACR to a high-speed mixer and mix at a high speed. When the temperature reaches 125°C, put the materials into a low-...

Embodiment 2

[0058] 1. Formula composition

[0059] Material name

parts by weight

Polyvinyl chloride resin (SG-5)

100

[0060] Diisononyl cyclohexane 1,2-dicarboxylate (DINCH)

4.0

Calcium Laurate / Zinc Heat Stabilizer

0.6

Amino Acid Calcium / Zinc Heat Stabilizer

0.6

N-(Substituent phenyl) itaconimide

1.0

β-diketone

0.3

pentaerythritol diester

0.3

Diphenyl-isooctyl phosphite (ODPP)

0.2

Processing aid ACR

0.8

Monoglyceride Stearate

0.7

polyethylene wax

0.3

[0061] 2. Mixing process

[0062] 1. Weigh various raw and auxiliary materials according to the formula and set aside.

[0063] 2. Put calcium laurate / zinc heat stabilizer, amino acid calcium / zinc heat stabilizer, β-diketone, pentaerythritol diester, and diphenyl-isooctyl phosphite into a ball mill for grinding. After 25 minutes, add Stearic acid monoglyceride and polyethylene wax continued to grind, ...

Embodiment 3-6

[0074] 1) Preparation of dry mix:

[0075] First grind the calcium / zinc heat stabilizer and organic auxiliary stabilizer in solid phase, then add internal lubricant and external lubricant to continue grinding, so that the particle size of the powder becomes smaller, and the surface of the lubricant is coated to avoid grinding fine particles agglomerated to obtain a ground mixture;

[0076] Put polyvinyl chloride resin, organic heat stabilizer, processing aid, non-phthalic plasticizer, and the above grinding mixture into a high-speed mixer and mix at a high speed. When the temperature reaches 125°C, put the material into a low-speed cooling and mixing In the machine, cool to below 45°C and discharge to obtain dry blend;

[0077] 2) Extrude, blow, or calender the dry blend to obtain a non-toxic PVC rigid transparent film.

[0078] The raw material in embodiment 3-9 is:

[0079] Calcium / zinc heat stabilizers are complexes of powdered higher fatty acid calcium salts and zinc sa...

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Abstract

The invention discloses a calcium / zinc thermal stabilizer polyvinyl chloride transparent hard film and a preparation method thereof. The hard film is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 1.0-1.5 parts of calcium / zinc thermal stabilizer, 0.7-1.2 parts of organic thermal stabilizer, 0.3-0.8 part of organic auxiliary stabilizer, 0.8-1.2 parts of processing aid, 0-5 parts of non-orthophenyl plasticizer, 0.6-0.9 part of internal lubricant and 0.2-0.4 part of external lubricant. The calcium / zinc thermal stabilizer is successfully applied to a polyvinyl chloride transparent hard film; the film is a non-toxic hard film; a new approach is provided for application of the calcium / zinc thermal stabilizer to the polyvinyl chloride transparent hard film; and by adopting the non-orthophenyl plasticizer, harm of heavy metal and the conventional phthalate plasticizer is avoided, so that a polyvinyl chloride product is more environmentally-friendly.

Description

technical field [0001] The invention relates to a polymer material and a processing method thereof, in particular to a calcium / zinc heat stabilizer polyvinyl chloride transparent hard film and a preparation method thereof. Background technique [0002] As the second largest synthetic polymer material after polyethylene, polyvinyl chloride (PVC) is widely used in various industries due to its excellent comprehensive performance and relatively low cost. [0003] Due to the particularity of the molecular structure of polyvinyl chloride, polyvinyl chloride resin is relatively unstable to heat, light, and oxygen, and it begins to dehydrochloride and decompose at about 100°C. Therefore, heat stabilizers and other related products must be added during polyvinyl chloride processing. Auxiliary. [0004] In order to make transparent polyvinyl chloride products, additives with good transparency and compatibility must be selected. At present, barium / cadmium / zinc, barium / zinc, calcium / ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K5/098C08K3/32C08K5/17C08K5/09
Inventor 杨涛陈亚龙周军峰陈丽颖于世发殷宇晨钱鑫陈丽娜
Owner JIANGSU GUANGHUI PACKAGE
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