CN105331019A - PVC floor and preparation method thereof - Google Patents

Abstract

The invention discloses a PVC floor and a preparation method thereof. The PVC floor is prepared from the following raw materials in parts by weight: 140-160 parts of polyvinyl chloride resin, 8-14 parts of stabilizer, 0.8-1.2 parts of lubricant, 3-7 parts of fire retardant, 40-46 parts of filler and 0.5-0.9 part of colorant. The preparation method comprises mixing and forming a finished product. Ardealite is sieved, the impurity content is reduced, impurities are further removed by calcining, the whiteness is improved, then grinding is performed for modifying, and the size distribution is adjusted; the ardealite is taken as the PVC filler, so that the prepared PVC floor has the characteristics of ageing resistance, ultraviolet resistance, corrosion resistance, high strength, cheap price, and good heat retaining property and heat insulation property, the quality of the PVC floor is improved, the aim of ardealite resource reuse is achieved, and the economic benefit is improved.

Description

A kind of pvc floor and preparation method thereof

Technical field

The present invention relates to chemical building material field, be specifically related to a kind of pvc floor and preparation method thereof.

Background technology

Phosphogypsum Shi Lin compound fertilizer enterprise with phosphorus ore and sulfuric acid for major industry by product during raw material production phosphoric acid, wet method phosphoric acid manufacture process is all produce extraction slurry by sulfuric acid decomposition ground phosphate rock, then filter obtained phosphoric acid, in the process of filtration washing, produce phosphogypsum waste.

Along with the industry of phosphorus ammonium and the development of high-concentration phosphate compound fertilizers, the quantity discharged of phosphogypsum increases year by year, and the whole world increases phosphogypsum quantity discharged every year newly and reaches 2.8 hundred million tons at present, and about 5,000 ten thousand tons, China, accounts for 20% of world's phosphogypsum annual emissions.A large amount of phosphogypsums is stacked, not only land occupation resource, tremendous economic burden is increased to enterprise, but also certain pollution can be caused to environment, China's phosphogypsum is not applied very well for a long time, and utilization ratio is only 10%, year utilization is only 400-500 ten thousand tons, the emission problem of phosphogypsum has become the important factor of restriction production of phosphate fertilizer, and therefore, the phosphogypsum comprehensive utilization technique developing a kind of practicality has great importance.

In the face of the needs of urgent phosphogypsum resource utilization recycling, the present invention proposes a kind of pvc floor and preparation method thereof.

Summary of the invention

For solving the problems of the technologies described above, the invention provides a kind of pvc floor and preparation method thereof

The present invention is achieved by the following technical programs:

A kind of pvc floor, it is made up of following raw material: polyvinyl chloride (PVC) RESINS 140-160 part, stablizer 8-14 part, lubricant 0.8-1.2 part, fire retardant 3-7 part, filler 40-46 part, tinting material 0.5-0.9 part.

Described pvc floor is made up of following raw material: polyvinyl chloride (PVC) RESINS 145-155 part, stablizer 10-12 part, lubricant 0.9-1.1 part, fire retardant 4-6 part, filler 42-44 part, tinting material 0.6-0.8 part.

Described pvc floor is made up of following raw material: polyvinyl chloride (PVC) RESINS 150 parts, stablizer 11 parts, lubricant 1 part, fire retardant 5 parts, filler 43 parts, tinting material 0.7 part.

Described filler is after phosphogypsum being crossed respectively 300 orders, 350 orders, 400 object sieves, carry out calcination processing respectively, by the temperature lower calcination 90min of the phosphogypsum of mistake 300 mesh sieves at 400 DEG C, the phosphogypsum crossing 350 mesh sieves is at the temperature lower calcination 90min of 450 DEG C, the phosphogypsum crossing 400 mesh sieves is at the temperature lower calcination 90min of 500 DEG C, put into spherical grinder after finally again being mixed by treated phosphogypsum and grind 90-100min, being milled to surface-area is 310-320m ²/ kg and obtaining.

CaSO in described phosphogypsum ₄2H ₂o content>=91%.

CaSO in described filler ₄content>=81%.

Described stablizer is at least one in tribasic lead sulfate, two basic lead sulfites.

Described lubricant is the one in stearic acid, calcium stearate.

Described fire retardant Tritolyl Phosphate.

Present invention also offers the preparation method on above-mentioned pvc floor, the method comprises the following steps:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 130-135 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Beneficial effect of the present invention is: phosphogypsum is carried out screening process by present method, reduce the content of its impurity, impurity is removed further again by calcining, improve its whiteness to carry out milled processed again and carry out modification, and its size distribution is adjusted, the pvc floor that it can be used as the filler of pvc to make to prepare have have anti-aging, uvioresistant, corrosion-resistant, intensity is high, low price, insulation and the good feature of heat-proof quality, improve the quality on pvc floor, and reach the object of phosphogypsum resource reutilization, improve economic benefit.

Embodiment

Below in conjunction with specific embodiment, technical scheme of the present invention is further described, but described in claimed scope is not limited to.

Embodiment one

Formula: polyvinyl chloride (PVC) RESINS 140 parts, stablizer 8 parts, lubricant 0.8 part, fire retardant 3 parts, filler 40 parts, tinting material 0.5 part.

Preparation method:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 130 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Embodiment two

Formula: polyvinyl chloride (PVC) RESINS 160 parts, stablizer 14 parts, lubricant 1.2 parts, fire retardant 7 parts, filler 46 parts, tinting material 0.9 part.

Preparation method:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 135 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Embodiment three

Formula: polyvinyl chloride (PVC) RESINS 155 parts, stablizer 12 parts, lubricant 1.1 parts, fire retardant 6 parts, filler 44 parts, tinting material 0.8 part.

Preparation method:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 135 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Embodiment four

Formula: polyvinyl chloride (PVC) RESINS 155 parts, stablizer 12 parts, lubricant 1.1 parts, fire retardant 6 parts, filler 44 parts, tinting material 0.8 part.

Preparation method:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 135 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Embodiment five

Formula: polyvinyl chloride (PVC) RESINS 150 parts, stablizer 11 parts, lubricant 1 part, fire retardant 5 parts, filler 43 parts, tinting material 0.7 part.

Preparation method:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 132.5 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.

Claims (10)

1. a pvc floor, is characterized in that: it is made up of following raw material: polyvinyl chloride (PVC) RESINS 140-160 part, stablizer 8-14 part, lubricant 0.8-1.2 part, fire retardant 3-7 part, filler 40-46 part, tinting material 0.5-0.9 part.

2. pvc floor according to claim 1, is characterized in that: described pvc floor is made up of following raw material: polyvinyl chloride (PVC) RESINS 145-155 part, stablizer 10-12 part, lubricant 0.9-1.1 part, fire retardant 4-6 part, filler 42-44 part, tinting material 0.6-0.8 part.

3. pvc floor according to claim 1, is characterized in that: described pvc floor is made up of following raw material: polyvinyl chloride (PVC) RESINS 150 parts, stablizer 11 parts, lubricant 1 part, fire retardant 5 parts, filler 43 parts, tinting material 0.7 part.

4. according to the arbitrary described pvc floor of claim 1-3, it is characterized in that: described filler is after phosphogypsum being crossed respectively 300 orders, 350 orders, 400 object sieves, carry out calcination processing respectively, by the temperature lower calcination 90min of the phosphogypsum of mistake 300 mesh sieves at 400 DEG C, the phosphogypsum crossing 350 mesh sieves is at the temperature lower calcination 90min of 450 DEG C, the phosphogypsum crossing 400 mesh sieves is at the temperature lower calcination 90min of 500 DEG C, put into spherical grinder after finally again being mixed by treated phosphogypsum and grind 90-100min, being milled to surface-area is 310-320m ²/ kg and obtaining.

5. pvc floor according to claim 4, is characterized in that: CaSO in described phosphogypsum ₄2H ₂o content>=91%.

6. ask the arbitrary described pvc floor of 1-3 according to claim, it is characterized in that: CaSO in described filler ₄content>=81%.

7. ask the arbitrary described pvc floor of 1-3 according to claim, it is characterized in that: described stablizer is at least one in tribasic lead sulfate, two basic lead sulfites.

8. ask the arbitrary described pvc floor of 1-3 according to claim, it is characterized in that: described lubricant is the one in stearic acid, calcium stearate.

9. ask the arbitrary described pvc floor of 1-3 according to claim, it is characterized in that: described fire retardant Tritolyl Phosphate.

10., as the preparation method on the pvc floor as described in arbitrary according to claim 1-3, it is characterized in that: the method comprises the following steps:

A, batch mixing: put into respectively in high speed mixer by the raw material in formula as requested, after being warming up to 130-135 DEG C, carrying out cold mixed, released by material when temperature is down to 40 DEG C;

B, finished product: cooling is completed material and puts into extrusion shaping machine, be extruded into ground tabular and namely obtain pvc ground board finished product.