CN105694267A - Environmentally-friendly stabilizer for PVC films, and preparation method thereof - Google Patents

Abstract

The invention relates to an environmentally-friendly stabilizer for PVC films, and a preparation method thereof. Raw materials of the stabilizer comprise a fatty acid calcium salt primary stabilizer, a fatty acid zinc salt primary stabilizer, hydrotalcite, a lubricant, a thiophenic heterocyclic compound, an antioxidant and graphene. The preparation method comprises the following steps: adding hydrotalcite to a high speed stirrer, and stirring hydrotalcite at 70-75DEG C for 5-10min; adding the fatty acid calcium salt primary stabilizer, the fatty acid zinc salt primary stabilizer, the lubricant and the thiophenic heterocyclic compound to the high speed stirrer, and stirring at 70-75DEG C for 10-20min; and adding the antioxidant, graphene, nano-silica and dehydroacetic acid to the high speed stirrer, stirring at 70-75DEG C for 10-20min, and cooling the obtained stirred mixture to obtain the environmentally-friendly stabilizer for PVC films. Addition of graphene in the invention makes the environmentally-friendly stabilizer for PVC films have the advantages of good strength, wear resistance, excellent comprehensive performances and prolongation of the service life of the PVC films.

Description

A kind of PVC film stabilizer and preparation method thereof

Technical field

The invention belongs to chemical stabilizer technical field, specifically refer to a kind of PVC film stabilizer and preparation method thereof and production technology thereof。

Background technology

Polrvinyl chloride (PVC) is after rationally mixing with stabilizer, modifier and inorganic material etc., it is possible to produce the polyvinyl chloride plastic material products of various different purposes。

In PVC industry, known heat stabilizer mainly has the stabilizers such as lead salts, terres rares, metal soap, organic tin and calcium zinc class。Lead salt stabilizer is cheap, and thermostable effect is good, but its toxicity is big, serious harm health contaminated environment。Organic tin heat stabilizer good thermal stability, toxicity is less, and it is widely used in high grade of transparency polyvinyl-chloride plate material, sheet material, food, medical packaging, but it is expensive, and some product to control totally nontoxic environmental protection in toxicity, thus its application is also restrained。

Along with society's raising to environmental consciousness, and to the raising that heat stability combination property requires, the production of heat stabilizer develops to nontoxic, pollution-free, heat-resist and high intensity direction, nontoxic calcium zinc composite calcium zinc heat stabilizer is universally acknowledged nontoxic, environment-benign heat stabilizer, and has the advantages such as cheap, lubricity is good。

Summary of the invention

Instant invention overcomes shortcoming of the prior art, provide a kind of PVC film stabilizer and preparation method thereof and production technology thereof, make PVC film have asepsis environment-protecting, heat insulation, advantage, the high comprehensive performance of product such as intensity is good wear-resisting, corrosion-resistant, heat-resisting, extend the service life of PVC film。

In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions:

A kind of PVC film stabilizer, its raw material includes:

Fatty acid calcium salt main stabilizer；

Fats acid zinc salt main stabilizer；

Brucite；

Lubricant；

Thiophene-based heterocyclic compound；

Antioxidant；

Graphene。

Further, it is additionally added nano silicon。

Further, it is additionally added dehydroacetic acid。

Further, its raw material includes, according to percentage by weight,

Fatty acid calcium salt main stabilizer 10-20%；

Fats acid zinc salt main stabilizer 10-20%；

Brucite 35-45%；

Lubricant 10-15%；

Thiophene-based heterocyclic compound 10-15%；

Antioxidant 2-4%；

Graphene 1-3%；

Nano silicon 1-2%；

Dehydroacetic acid 2-3%。

Further, described lubricant is butyl stearate。

Further, described antioxidant is pentaerythritol tetrathioglycollate。

Its preparation method of a kind of PVC film stabilizer, comprises the following steps,

1) brucite is added homogenizer, at 70-75 DEG C, stir 5-10min；

2) by fatty acid calcium salt main stabilizer, fats acid zinc salt main stabilizer, lubricant and thiophene-based heterocyclic compound add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min；

3) by antioxidant, Graphene, nano silicon and dehydroacetic acid add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min, and cooling can obtain PVC film stabilizer。

Compared with prior art, the invention has the beneficial effects as follows:

A kind of PVC film stabilizer of the present invention and preparation method thereof and production technology thereof, by the addition of Graphene, PVC film stabilizer is made to have intensity good, the advantage such as wear-resisting, the high comprehensive performance of product, extends the service life of PVC film, and and the addition of nano silicon, improving the wearability of artificial quartz in lump further, combination property is better。

Detailed description of the invention

Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention。

Embodiment 1:

A kind of PVC film stabilizer of the present invention, its raw material includes: according to percentage by weight, fatty acid calcium salt main stabilizer 13%；Fats acid zinc salt main stabilizer 13%；Brucite 40%；Lubricant 12%；Thiophene-based heterocyclic compound 13.5%；Antioxidant 3%；Graphene 1.5%；Nano silicon 1.5%；Dehydroacetic acid 2.5%。

Add thiophene-based heterocyclic compound, make PVC film good weatherability。

Butyl stearate selected by lubricant, and pentaerythritol tetrathioglycollate selected by antioxidant。

Its preparation method of a kind of PVC film stabilizer, comprises the following steps,

1) brucite is added homogenizer, at 70-75 DEG C, stir 5-10min；

2) by fatty acid calcium salt main stabilizer, fats acid zinc salt main stabilizer, lubricant and thiophene-based heterocyclic compound add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min；

3) by antioxidant, Graphene, nano silicon and dehydroacetic acid add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min, and cooling can obtain PVC film stabilizer。

Embodiment 2:

A kind of PVC film stabilizer of the present invention, according to percentage by weight, fatty acid calcium salt main stabilizer 16%；Fats acid zinc salt main stabilizer 16%；Brucite 37.5%；Lubricant 12%；Thiophene-based heterocyclic compound 11.1%；Antioxidant 2.5%；Graphene 1.3%；Nano silicon 1.3%；Dehydroacetic acid 2.3%。

Last it is noted that these are only the preferred embodiments of the present invention; it is not limited to the present invention; although the present invention being described in detail with reference to embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent replacement; but all within the spirit and principles in the present invention; any amendment of being made, equivalent replacement, improvement etc., should be included within protection scope of the present invention。

Claims (7)

1. a PVC film stabilizer, it is characterised in that its raw material includes:

Fatty acid calcium salt main stabilizer；

Fats acid zinc salt main stabilizer；

Brucite；

Lubricant；

Thiophene-based heterocyclic compound；

Antioxidant；

Graphene。

2. a kind of PVC film stabilizer according to claim 1, it is characterised in that be additionally added nano silicon。

3. a kind of PVC film stabilizer according to claim 2, it is characterised in that be additionally added dehydroacetic acid。

4. a kind of PVC film stabilizer according to claim 3, it is characterised in that its raw material includes, according to percentage by weight,

Fatty acid calcium salt main stabilizer 10-20%；

Fats acid zinc salt main stabilizer 10-20%；

Brucite 35-45%；

Lubricant 10-15%；

Thiophene-based heterocyclic compound 10-15%；

Antioxidant 2-4%；

Graphene 1-3%；

Nano silicon 1-2%；

Dehydroacetic acid 2-3%。

5. a kind of PVC film stabilizer according to claim 4, it is characterised in that described lubricant is butyl stearate。

6. a kind of PVC film stabilizer according to claim 4, it is characterised in that described antioxidant is pentaerythritol tetrathioglycollate。

7. its preparation method of a kind of PVC film stabilizer according to claim 4, it is characterised in that comprise the following steps,

1) brucite is added homogenizer, at 70-75 DEG C, stir 5-10min；

2) by fatty acid calcium salt main stabilizer, fats acid zinc salt main stabilizer, lubricant and thiophene-based heterocyclic compound add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min；

3) by antioxidant, Graphene, nano silicon and dehydroacetic acid add homogenizer and are stirred, and at 70-75 DEG C, stir 10-20min, and cooling can obtain PVC film stabilizer。