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Middle layer material for latching floors and preparation method thereof

A mid-level and floor technology, applied in the direction of buildings, building structures, floors, etc., can solve problems such as unfavorable processing, decreased toughness, and brittle product edges, and achieve the effect of improving strength and toughness.

Active Publication Date: 2014-10-22
ZHEJIANG KINGDOM NEW MATERIAL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main defects: 1. After adding a large amount of inorganic fillers (calcium carbonate), the density and hardness will increase with the increase of inorganic fillers, while the toughness will decrease, that is, the edge of the product will become brittle, and it will be very difficult during processing and transportation. prone to damage
2. The addition of inorganic fillers in the formula is not unlimited. When an excessive amount of inorganic fillers are added, it is not conducive to processing, and the mixture will fall off the rolling rolls during the kneading process, and it is difficult to shape

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A middle layer material for locking floor, made of the following raw materials in parts by weight:

[0023] 100 parts of polyvinyl chloride, 2 parts of stabilizer, 36 parts of plasticizer, 0.5 parts of carbon black, 510.6 parts of calcium carbonate, 7 parts of nitrile rubber. Among them, the plasticizer adopts dioctyl terephthalate; the stabilizer adopts calcium-zinc composite stabilizer.

[0024] The preparation method of the above-mentioned middle layer material for locking the floor is as follows:

[0025] Stir and mix the raw materials polyvinyl chloride, dioctyl terephthalate, and calcium-zinc composite stabilizer according to the above ratio at high speed, and heat to 70-80°C through self-friction to allow polyvinyl chloride to fully absorb dioctyl phthalate, and Make the calcium-zinc composite stabilizer evenly distributed without releasing the mixture; add calcium carbonate to continue mixing without releasing the mixture; add nitrile rubber and carbon black to...

Embodiment 2

[0028] A floor, comprising a wear-resistant layer, a printed color film, a primer layer and a middle material layer, the middle material layer is made of the middle layer material as described in Example 1.

[0029] The wear-resistant layer formula is as follows: 100 parts of pvc resin powder, 28 parts of plasticizer, 4 parts of stabilizer

[0030] The formula of the primer layer is as follows: 100 parts of pvc resin powder, 30 parts of plasticizer, 2 parts of stabilizer, 158.6 parts of calcium carbonate

[0031] Comparing the plastic floor made by the middle layer material (containing nitrile rubber) of the present invention with the existing common plastic floor (the middle layer material does not contain nitrile rubber), the relevant performance parameters are shown in the following table:

[0032] Middle material density Middle material hardness Expansion rate Shrinkage The plastic floor made of the middle layer material (containing nitrile rubber) o...

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Abstract

The invention relates to a PVC (Polyvinyl Chloride) plastic floor, and discloses a middle layer material for latching floors and a preparation method thereof. The middle layer material consists of the following raw materials in parts by weight: 100-200 parts of PVC, 1-5 parts of stabilizer, 20-40 parts of plasticizer, 0.1-1 part of carbon black, 400-600 parts of calcium carbonate and 5-10 parts of nitrile rubber. According to the preparation method, the nitrile rubber is added, so that the mixing processing is convenient, the toughness of the middle layer material is improved and the strength of the latching tension between products is improved at the same time. Compared with the existing plastic floors, a floor product obtained by thermal compounding between the middle layer material and a wearing layer, a printing color films and a bottom layer material has strength, heat resistance and cold resistance.

Description

technical field [0001] The invention relates to a PVC plastic floor, in particular to a middle-layer material used for locking the floor and a preparation method thereof. Background technique [0002] In the existing PVC plastic floor formula, in order to control the expansion rate and shrinkage rate of the product, a large amount of inorganic filler (calcium carbonate) is added, and the filler is increased as much as possible to control the expansion rate and shrinkage rate. Its main defects: 1. After adding a large amount of inorganic fillers (calcium carbonate), the density and hardness will increase with the increase of inorganic fillers, while the toughness will decrease, that is, the edge of the product will become brittle, and it will be very difficult during processing and transportation. easy to cause damage. 2. The addition of inorganic fillers in the formula is not unlimited. When excessive inorganic fillers are added, it is not conducive to processing, and the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08K3/04C08K3/26C08K5/12E04F15/10
Inventor 戴会斌
Owner ZHEJIANG KINGDOM NEW MATERIAL GRP CO LTD
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