CN102604264A - Potassium-zinc liquid stabilizer for PVC (polyvinyl chloride) artificial leather and preparation method for same - Google Patents

Abstract

The invention relates to a PVC (polyvinyl chloride) heat stabilizer and a preparation method for the same, in particular to a heat stabilizer applied to artificial leather and a preparation method for the same. The potassium-zinc liquid stabilizer for the PVC artificial leather is prepared by components by weight: 61.2%-62.2% of isocaprylic acid, 5.7%-6% of diethylene glycol butyl ether, 7.2%-7.5% of potassium hydroxide, 14.4%-15% of zinc oxide and 10.5%-11% of ethylene glycol butyl ether, wherein the total amount of all components is 100%. The potassium-zinc liquid stabilizer solves the problems of peculiar smell and environmental pollution due to solvent volatilization during preparation, is 100% less than a traditional stabilizer in consumption and beautiful in color, and has the advantages of excellent heat stability, high foaming capacity, uniform cell size, excellent whiteness and the like. Compared with international products with the same functions, the potassium-zinc liquid stabilizer has price superiority and is more competitive.

Description

PVC used for artificial leather potassium zinc liquid stabilizer and preparation method thereof

Technical field

The present invention relates to a kind of pvc thermo-stabilizer and preparation method thereof, relate in particular to a kind of thermo-stabilizer that is applied to leatheroid and preparation method thereof.

Background technology

Thermo-stabilizer is one type can be prevented or reduce polymkeric substance and in the course of processing, be heated and degraded or crosslinked, the additive in elongate composite material work-ing life take place.Stablizer commonly used according to the staple classification can be divided into salt base class, fatty acid soaps class, organo-tin compound, composite type heat stablizer and pure organic cpds class.

1) alkali type thermal stabilizing agent: the alkali type thermal stabilizing agent is meant and is combined with the inorganic of " alkali " and organic acid lead salt; This type stablizer has good thermotolerance, weathering resistance and point insulating property, and cost is low, and the transparency is poor; Certain toxicity is arranged, and consumption is generally 0.5% ~ 5.0%.

2) fatty acid thermo-stabilizer: this type thermal stabilizing agent is meant the compound of being made up of fatty acid radical and metals ion, also claims metal soap thermal stabilizers, and its performance is relevant with the kind of acid group and metals ion, and general consumption is 0.1% ~ 3.0%.

3) organic tin thermo-stabilizer: this type thermal stabilizing agent can form ligand with unstable chlorine atom in the SE molecule, and in ligand the carboxylic acid group and the unsettled chlorine atomic substitutions of organotin.The characteristics of this type thermal stabilizing agent are that stability is high, and the transparency is good, excellent heat resistance, and weak point is that price is more expensive.

4) composite type heat stablizer: this type thermal stabilizing agent is the mixture that the liquid or solid mixture that is the basis with salt base class or metallic soap class and organotin are the basis, and wherein metallic salt has calcium-magnesium-zinc, barium-calcium-zinc, barium-zinc and potassium-zinc etc.; Organic acid such as organic lipid acid, naphthenic acid, oleic acid, phenylformic acid and Whitfield's ointment etc. commonly used.

5) organic cpds thermo-stabilizer: the main stabilizer that this type thermal stabilizing agent can use separately except that minority (mainly being nitrogenous organic cpds); Also comprise high boiling polyvalent alcohol and phosphorous acid ester; Phosphorous acid ester normal and metal(lic)stabilizer and usefulness; Can improve weathering resistance, the transparency of matrix material, improve the surface color of goods.

The mechanism of action of PVC thermo-stabilizer is following: in 1) absorbing and HCL, suppress its autocatalytic action.This type stablizer comprises lead salts, organic acid metal soap class, organo-tin compound, epoxy compounds, phenates and metal mercaptide salt etc.They can react with HCL, suppress the reaction that PVC takes off HCL.2) unsettled chlorallylene atom suppresses to take off PVC in the displacement PVC molecule.Combine with the unstable chlorine atom generation coordination of PVC molecule like organotin stabilizer, in ligand, organotin and unstable chlorine atomic substitutions.3) with polyene structure generation addition reaction, destroy the formation of big conjugated system, reduce painted.The salt of unsaturated acid or ester contain two keys, with conjugated double bond generation diene addition reaction in the PVC molecule, thereby destroy its conjugated structure, suppress variable color.

The existing domestic stablizer that is used for leatheroid is often big at manufacturer's fabricate-leather process energy input; Improved production cost; Traditional potassium zinc stabilizer solvent is generally all greater than 50%, and solvent just will volatilize when temperature reaches 130 ℃, and in manufacturing processed temperature of oven up to 220 ℃; Its solvent certainly will volatilize in a large number, and air is polluted.

Summary of the invention

The defective that exists for the stablizer that solves above-mentioned leatheroid; An object of the present invention is to provide a kind of PVC used for artificial leather potassium zinc liquid stabilizer; It is at high temperature non-volatile that this stablizer does not have any solvent; Having solved product has the problem of peculiar smell, have the characteristics of safety and environmental protection, and this stablizer reduces 100% as the stabilizing agent specially used of leatheroid than traditional stablizer on consumption.Another object of the present invention provides the preparation method of above-mentioned PVC used for artificial leather potassium zinc liquid stabilizer.

In order to realize first above-mentioned purpose, the technical scheme below the present invention has adopted:

PVC used for artificial leather potassium zinc liquid stabilizer, this stablizer is prepared from the component of following weight ratio:

Isocaprylic acid 61.2% ~ 62.2%;

Diethylene Glycol butyl ether 5.7% ~ 6%;

Pottasium Hydroxide 7.2% ~ 7.5%;

Zinc oxide 14.4% ~ 15%;

Butyl glycol ether 10.5% ~ 11%;

The above-mentioned total amount of respectively forming is 100%.

As most preferably, this stablizer is prepared from the component of following weight ratio:

Isocaprylic acid 62.2%;

Diethylene Glycol butyl ether 5.7%;

Pottasium Hydroxide 7.2%;

Zinc oxide 14.4%;

Butyl glycol ether 10.5%.

In order to realize second above-mentioned purpose, the technical scheme below the present invention has adopted:

A kind of preparation method who prepares above-mentioned PVC used for artificial leather potassium zinc liquid stabilizer, this method comprises the steps:

A. under 70 ~ 85 ℃, isocaprylic acid adds Pottasium Hydroxide dissolving back and adds the zinc oxide dissolving;

B. be warming up to stir about 100 ~ 110 ℃ to make in 20 ~ 40 minutes and react completely, do not have particulate zinc oxide clearly to solution becomes and exist;

C. maintain the temperature at about 100 ~ 120 ℃, add the butyl glycol ether dehydration, adding auxiliary agent in dehydration back stirs and got final product in 10 ~ 20 minutes.

Product of the present invention is compared with existing like product; The invention solves product has the problem of peculiar smell and has solved, and solvent evaporates problem of environment pollution caused in manufacturing processed reduces 100% than traditional stablizer on consumption; Color and luster is beautiful; Not only have good thermostability and also have the frothing percentage height, characteristics such as abscess is even, and whiteness is good.Comparing with congenerous product in the world has very big price advantage, more competitive.

The practical implementation method

PVC used for artificial leather potassium zinc liquid stabilizer, this stablizer is prepared from the component of following weight ratio:

Isocaprylic acid 62.2%;

Diethylene Glycol butyl ether 5.7%;

Pottasium Hydroxide 7.2%;

Zinc oxide 14.4%;

Butyl glycol ether 10.5%.

The preparation method of above-mentioned PVC used for artificial leather potassium zinc liquid stabilizer, this method comprises the steps:

A. under 80 ℃, isocaprylic acid adds Pottasium Hydroxide dissolving back and adds the zinc oxide dissolving;

B. be warming up to about 1005 ℃ to stir to make in 30 minutes and react completely, do not have particulate zinc oxide clearly to solution becomes and exist;

C. in solution, drip Pottasium Hydroxide, maintain the temperature at about 110 ℃, add the butyl glycol ether dehydration, adding auxiliary agent in dehydration back stirs and got final product in 15 minutes.

Test Example

Finished product to embodiment 1 preparation detects finished product detection result such as following table 1:

Table 1

Project	Index	The result
			The color and luster degree	≤150	50
Viscosity (25 ℃) pascal second	≥ 0.3	0.4
			Light rate: (25 ± 0.5 ℃)	≤ 1.450	1.400

In the table 1 color and luster degree, the viscosity of finished product, the detected result of refractive index.

The color and luster degree is 50, arrives index request, and this product color degree of comparing with other like products is more excellent.

25 ℃ of following viscosity is 0.4 pascal second, and this product is in the indication range comparatively speaking, and it is excellent that this has embodied this quality product.

The refractive index of this product is 1.400, and our product gas purity composite demand is explained in the requirement that touches the mark comparatively speaking, and is special better than other products effect in the middle of the use of leatheroid.

Claims (3)

1.PVC used for artificial leather potassium zinc liquid stabilizer is characterized in that this stablizer is prepared from the component of following weight ratio:

Isocaprylic acid 61.2% ~ 62.2%;

Diethylene Glycol butyl ether 5.7% ~ 6%;

Pottasium Hydroxide 7.2% ~ 7.5%;

Zinc oxide 14.4% ~ 15%;

Butyl glycol ether 10.5% ~ 11%;

The above-mentioned total amount of respectively forming is 100%.

2. PVC used for artificial leather potassium zinc liquid stabilizer according to claim 1 is characterized in that this stablizer is prepared from the component of following weight ratio:

Isocaprylic acid 62.2%;

Diethylene Glycol butyl ether 5.7%;

Pottasium Hydroxide 7.2%;

Zinc oxide 14.4%;

Butyl glycol ether 10.5%.

3. a preparation method who prepares claim 1 or 2 described PVC used for artificial leather potassium zinc liquid stabilizers is characterized in that this method comprises the steps:

A. under 70 ~ 85 ℃, isocaprylic acid adds Pottasium Hydroxide dissolving back and adds the zinc oxide dissolving;

B. be warming up to stir about 100 ~ 110 ℃ to make in 20 ~ 40 minutes and react completely, do not have particulate zinc oxide clearly to solution becomes and exist;

C. maintain the temperature at about 100 ~ 120 ℃, add the butyl glycol ether dehydration, adding auxiliary agent in dehydration back stirs and got final product in 10 ~ 20 minutes.