CN109971082A - Floor tile precoat, floor tile and preparation method thereof - Google Patents

Floor tile precoat, floor tile and preparation method thereof Download PDF

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Publication number
CN109971082A
CN109971082A CN201711461889.3A CN201711461889A CN109971082A CN 109971082 A CN109971082 A CN 109971082A CN 201711461889 A CN201711461889 A CN 201711461889A CN 109971082 A CN109971082 A CN 109971082A
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CN
China
Prior art keywords
floor tile
precoat
polyvinyl chloride
chloride resin
raw material
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CN201711461889.3A
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Chinese (zh)
Inventor
周程波
凡永德
张焱
刘宇亮
赖仲平
张秀林
张美玲
邹学义
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU HAN RIGID INDUSTRIAL Co Ltd
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GUANGZHOU HAN RIGID INDUSTRIAL Co Ltd
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Application filed by GUANGZHOU HAN RIGID INDUSTRIAL Co Ltd filed Critical GUANGZHOU HAN RIGID INDUSTRIAL Co Ltd
Priority to CN201711461889.3A priority Critical patent/CN109971082A/en
Publication of CN109971082A publication Critical patent/CN109971082A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/10—Transparent films; Clear coatings; Transparent materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)

Abstract

The present invention relates to a kind of floor tile precoats, floor tile and preparation method thereof.The floor tile precoat is by including that the raw material of following parts by weight is prepared: 5~10 parts of 2~4 parts of 0.5~2 part of copolymer, stabilizer, the toughener of 80~105 parts of polyvinyl chloride resin, methyl methacrylate and butyl acrylate and 0.1~0.7 part of lubricant；Wherein, the polyvinyl chloride resin includes the first polyvinyl chloride resin that the degree of polymerization is 700~900 and the second polyvinyl chloride resin that the degree of polymerization is 950~1200, and the weight ratio of second polyvinyl chloride resin and first polyvinyl chloride resin is 0~20:80~100.The each component coordinated of the floor tile precoat is capable of providing a kind of floor tile precoat with low-luster on the whole, is not easy reflective.

Description

Floor tile precoat, floor tile and preparation method thereof
Technical field
The present invention relates to decorative product fields, more particularly to a kind of floor tile precoat, floor tile and preparation method thereof.
Background technique
PVC floor brick is commonly called as plastic floor, and waterproof, wear-resisting, Yi Genghuan are three big characteristics of PVC floor brick, while price It is cheap compared with other types of floor tile.
The plastic floor of early stage is considered the cheap goods of texture difference.With the development of science and technology, many import plastic floors Lines can reach quasi- true wood grain and marbled degree, and texture is made to increase, while using and replacing and being quite convenient to, Situation for household is also more and more.
Traditional PVC floor brick is mainly compounded to form by bottom, middle layer and the three-decker on surface layer, and surface layer is wear-resisting Layer, anti-soda acid, corrosion-resistant, translucent and good weatherability；Middle layer is the transparent bed of material of high gloss, and flattening property is good；Bottom masking Rate is high, and surface roughness is uniform, and lines is clear, and printing is good, can print many lines such as parian lines and wood grain.But It is that, since middle layer is the transparent bed of material of high gloss, reflective problem is very serious.
Summary of the invention
Based on this, it is necessary to provide and a kind of be not easy reflective floor tile precoat, floor tile and preparation method thereof.
A kind of floor tile precoat is prepared by the raw material for including following parts by weight by weight: polyvinyl chloride resin 80~ 105 parts, 5~10 parts of 2~4 parts of 0.5~2 part of copolymer, stabilizer, the toughener of methyl methacrylate and butyl acrylate and 0.1~0.7 part of lubricant；
Wherein, the polyvinyl chloride resin includes the first polyvinyl chloride resin that the degree of polymerization is 700~900 and the degree of polymerization is 950~1200 The second polyvinyl chloride resin, the weight ratio of second polyvinyl chloride resin and first polyvinyl chloride resin is 0~20:80~100.
The weight ratio of second polyvinyl chloride resin and first polyvinyl chloride resin is 5~15:85 in one of the embodiments, ~95.
The weight ratio of second polyvinyl chloride resin and first polyvinyl chloride resin is 9~11:89 in one of the embodiments, ~91.
The stabilizer includes the epoxidized soybean oil that weight ratio is 0~1.0:2.0~3.0 in one of the embodiments, And butanethiol tin.
The toughener is MBS resin, performance parameter in one of the embodiments, are as follows: content >=98.5%, impact Intensity >=13KJ/m3, volatile matter≤1.5%, apparent specific gravity >=0.4g/ml, particle accounting of the partial size greater than 1000 μm≤ 1.0%, foreign matter≤20pcs/20g, white point≤87pcs/5000cm2。
The lubricant includes the mixed of stearoyl -2- calcium lactate and stearoyl -2- sodium lactate in one of the embodiments, Close object and pentaerythrite hexanedioic acid stearic acid complex ester.
The floor tile precoat further includes 0~0.5 part of talcum powder in one of the embodiments,.
The floor tile precoat further includes 0.2~0.5 part of talcum powder in one of the embodiments,.
The floor tile precoat further includes 0.004~0.008 part of colorant in one of the embodiments,.
A kind of floor tile, comprising:
Substrate layer, the substrate layer have opposite first surface and second surface, and the first surface is for snugly Plate, the second surface are equipped with lines；
Low-luster precoat, the low-luster precoat are floor tile precoat described in any of the above-described embodiment, institute Low-luster precoat is stated on the second surface；And
Wearing layer, the wearing layer are set on the precoat.
A kind of preparation method of floor tile precoat described in any of the above-described embodiment, includes the following steps:
Each raw material is weighed according to the raw material composition of floor tile precoat described in any of the above-described embodiment；
By the copolymer, toughener and lubricant of polyvinyl chloride resin, stabilizer, methyl methacrylate and butyl acrylate according to In the thermal agitation machine of secondary operation, stirring makes material be warming up to 100 DEG C~110 DEG C, obtains the first mixed material；
First mixed material is transferred in cold blender, is stirred, is cooled to 70 DEG C~80 DEG C, obtains the second mixture Material；
Second mixed material is squeezed out through screw rod extruder, the Parameter Conditions of the extrusion are as follows: driving screw temperature 120 DEG C~140 DEG C, speed 40rpm~50rpm, obtain the first intermediate product；
Described first intermediate product are transferred to prick in turbine and are plasticized, the Parameter Conditions of the plasticizing are as follows: 135 DEG C of temperature ~145 DEG C, revolving speed 35rpm~45rpm is to get the second intermediate product；
It will be pressed into thin slice in the described second intermediate product investment calender after plasticizing, then the thin slice is sent into cooling unit Middle cooling, then by winder wind to get.
Floor tile precoat of the invention passes through the first polyvinyl chloride resin that the degree of polymerization of the specific proportion of screening is 700~900, gathers It is right be 950~1200 the second polyvinyl chloride resin and methyl methacrylate and the copolymer of butyl acrylate compound, and match With the stabilizer, toughener and lubricant of specific dosage, a kind of floor tile precoat with low-luster is provided on the whole, It is not easy reflective, and makes floor tile precoat still transparency with higher, good flattening and the heat shrink for meeting standard Characteristic.
Floor tile of the invention makes the three-dimensional sense of floor tile by using the floor tile precoat of above-mentioned low-luster on the whole Enhancing, it is non-reflective, and transparency is high.
The preparation method of floor tile precoat of the invention makes the ground obtained by screening raw material composition and processing parameter The thickness distribution of brick precoat is uniform, and glossiness is low, and transparency is high, and flatness is good.
Specific embodiment
To facilitate the understanding of the present invention, below to invention is more fully described.The present invention can be with many differences Form realize, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to this hair The understanding of bright disclosure is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Raw material sources:
The first polyvinyl chloride resin that the degree of polymerization is 800, performance parameter: K value is 61.5, apparent specific gravity 0.609g/ml, volatilization Property content of material be 0.1%, partial size is less than 355 μm, no VCM monomer residue；Purchased from Japanese Kanegafuchi Chemical Industry Co., Ltd, S- 1008。
The second polyvinyl chloride resin that the degree of polymerization is 1040, performance parameter: 0.48~0.52gr/cc of bulk density, volatile materials ≤ 0.1%, foreign matter≤16pcs/100g, white point≤4pcs/100cm2, relative density 2.2~2.6, VCM monomer residue≤ 0.1%,；It is moulded purchased from platform, S-65.
The copolymer of methyl methacrylate and butyl acrylate, performance parameter: 0.35~0.60gr/cc of bulk density, Volatile materials≤1.5%, foreign matter≤3.0%, relative density 2.2~2.6；Purchased from South Korea LG/PA-912.
High-intensitive MBS resin, performance parameter: impact strength >=13KJ/m3, volatile matter≤1.5%, apparent specific gravity >= 0.4g/ml, partial size are greater than 1000 μm of particle accounting≤1.0%, foreign matter≤20pcs/20g, white point≤87pcs/5000cm2； Purchased from Japanese Kanegafuchi Chemical Industry Co., Ltd, B-622A, content >=98.5%.
Pentaerythrite hexanedioic acid stearic acid complex ester reaches precision chemical limited liability company, PASFLOW purchased from Taiwan hundred 7501。
The mixture of stearoyl -2- calcium lactate and stearoyl -2- sodium lactate is purchased from U.S. Caravan Ingredients Inc./, PATIONIC 925, containing 75~80% stearoyl -2- calcium lactate and 15~20% stearoyl -2- sodium lactate.
Colorant is purchased from hundred Chinese toon Trading Co., Ltd of Taiwan, B901, including Solvnet Violet 13+ Solvnet Violet 31+Solvnet Green 3)。
Remaining reagent is conventional commercial.
Embodiment 1
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 1:
The raw material of the floor tile precoat of 1 embodiment 1 of table forms
The preparation method of the floor tile precoat of the present embodiment includes the following steps:
Each raw material is weighed according to the raw material composition in table 1.
In the thermal agitation machine that polyvinyl chloride resin and stabilizer are put into operation, then by methyl methacrylate and butyl acrylate Copolymer, in the thermal agitation machine that puts into operation of toughener and lubricant, then put into talcum powder and colorant, stir, make material 105 ± 5 DEG C are warming up to, the first mixed material is obtained.
First mixed material is transferred in cold blender, is stirred, is cooled to 75 ± 5 DEG C, obtains the second mixed material.
Second mixed material is squeezed out through screw rod extruder, the Parameter Conditions of extrusion are as follows: 130 ± 5 DEG C of driving screw temperature, speed 45 ± 5rpm is spent, is discharged in storage barrel, obtains the first intermediate product.
First intermediate product are transferred to roll in turbine and are plasticized, the Parameter Conditions of plasticizing are as follows: 140 ± 5 DEG C of temperature, revolving speed 40 ± 5r pm obtains the second intermediate product.
It will be pressed into thin slice in second intermediate product investment calender, then thin slice is sent into cooling in cooling unit, then pass through receipts Volume machine winding to get.
Embodiment 2
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 2:
The raw material of the floor tile precoat of 2 embodiment 2 of table forms
The preparation method of the floor tile fabric of the present embodiment and the preparation method of floor tile fabric of embodiment 1 are identical.
Embodiment 3
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 3:
The raw material of the floor tile precoat of 3 embodiment 3 of table forms
The preparation method of the floor tile fabric of the present embodiment and the preparation method of floor tile fabric of embodiment 1 are identical.
Embodiment 4
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 4:
The raw material of the floor tile precoat of 4 embodiment 4 of table forms
The preparation method of the floor tile fabric of the present embodiment and the preparation method of floor tile fabric of embodiment 1 are identical.
Embodiment 5
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 5:
The raw material of the floor tile precoat of 5 embodiment 5 of table forms
The preparation method of the floor tile fabric of the present embodiment and the preparation method of floor tile fabric of embodiment 1 are identical.
Embodiment 6
The present embodiment provides a kind of floor tile precoats, by weight, are prepared by the raw material in table 6:
The raw material of the floor tile precoat of 6 embodiment 6 of table forms
The preparation method of the floor tile fabric of the present embodiment and the preparation method of floor tile fabric of embodiment 1 are identical.
Comparative example 1
The present embodiment provides a kind of raw material of floor tile precoat compositions, and by weight, raw material composition is as shown in table 7:
The raw material of the floor tile fabric of 7 comparative example 1 of table forms
The preparation method of the floor tile fabric of this comparative example and the preparation method of floor tile fabric of embodiment 1 are identical, but due to The auxiliary agents such as the copolymer, lubricant and talcum powder of methyl methacrylate and butyl acrylate are not added, acquisition can not be produced Floor tile precoat.
Comparative example 2
This comparative example provides a kind of traditional high gloss transparent floor tile precoat, the transparent floor tile precoat of the high gloss Formula composition are as follows: Corvic that 100 parts of degree of polymerization are about 800,2.5 parts of butanethiol tins, 1 part of methyl methacrylate (domestic, content is less than 80%, impact strength < 9KJ/m with the copolymer of butyl acrylate3), 0.5 part of epoxidized soybean oil, 7 parts High-intensitive MBS resin, 0.25 part of stearic acid and 0.004~0.008 part of colorant.The high gloss of the conventional commercial is pellucidly The preparation method of brick fabric includes the following steps:
Each raw material is added in mixing machine and is mixed, tentatively sheared using extruder plasticizing (160 DEG C of driving screw temperature, Speed 55rpm), the secondary mixing (180 DEG C of temperature, revolving speed 55r pm) of turbine is rolled using double roller, then through calender calendering formation, Drawn machine, which is stretched to, needs thickness, and rolling after cooling obtains finished product.Wherein, in the technological parameter of each step and embodiment 1 not Together.
Performance test
The floor tile fabric of embodiment 1 to 6 and comparative example 1 and 2 is tested for the property, wherein thickness is according to ASTM The standard of D1593 is tested, and glossiness (60 °) is tested according to the standard of ASTM D523-89, and transparency is according to ASTM The standard of D1003-13 is tested, and heat shrink (MD/CD, 100 DEG C × 10) is surveyed according to the standard of ASTM D1204-94 Examination, statistical result see the table below 8.
8 the performance test results statistical form of table
As can be seen from Table 8, compared with comparative example 1 and comparative example 2, the floor tile precoat of embodiment 1 to 6 has on the whole Lower glossiness.Wherein, the glossiness of the floor tile precoat of embodiment 4 is minimum, while transparency, flattening property, heat shrink The indexs such as rate reach suitable with the transparent floor tile fabric of high gloss.Small particulate in the floor tile precoat of embodiment 5 is more, thoroughly Lightness is lower.
In addition, through a large number of experiments the study found that the basis of the formula in the transparent floor tile precoat of traditional high gloss The higher PVC powder of the upper addition degree of polymerization, can reduce glossiness, but can also reduce transparency simultaneously to a certain extent, need to be into One step is by by the copolymer (impact strength >=13KJ/m of the methyl methacrylate of particular characteristic parameter and butyl acrylate3, Volatile matter≤1.5%, apparent specific gravity >=0.4g/ml, partial size are greater than 1000 μm of particle accounting≤1.0%, foreign matter≤20pcs/ 20g, white point≤87pcs/5000cm2, content >=98.5% can improve glossiness to a certain extent), stabilizer, talcum powder (can Reduce glossiness to a certain extent) etc. appropriate compounding, the frictional force between polymer and equipment can be reduced on the whole, promote glue Change, improve heat fusing elongation and heat fusing tearing strength, improves processability, and avoid PVC powder in the preparation of floor tile precoat Deteriorate, decompose in the process etc., the impact resistant strength of product is improved, reduces the glossiness of brick precoat, while guaranteeing product Transparency meets customer requirement.
Compared with traditional high gloss perspex floor tile precoat, using the methacrylic acid of particular types and proportion The copolymer of methyl esters and butyl acrylate, the first polyvinyl chloride resin that the degree of polymerization is 700~900 and the degree of polymerization are 950~1200 The compounding of second polyvinyl chloride resin, then it is equipped with particular kind of stabilizer, particular kind of lubricant (stearoyl -2- calcium lactate and hard The mixture and pentaerythrite hexanedioic acid stearic acid of acyl -2- sodium lactate are compound) and talcum powder etc. compounding, and pass through sieve Select the technological parameter of each production stage could produce obtain low-luster (30 ± 10) and the high grade of transparency (> 82, customer requirement Index) floor tile precoat.
Preferably, using 5~15:95 of weight ratio~85, second polyvinyl chloride resin and the first polyvinyl chloride resin, and it is equipped with particular characteristic The copolymer of the methyl methacrylate of parameter and butyl acrylate, particular kind of stabilizer, particular kind of lubricant with And talcum powder etc., the glossiness for obtaining floor tile fabric on the whole is lower, and thickness distribution is uniform, while also having good transparent The performances such as degree, flattening property, heat shrink rate.
A kind of floor tile includes substrate layer, low-luster precoat and wearing layer.Substrate layer has the first opposite table Face and second surface, first surface are equipped with lines or printing layer for being bonded floor, second surface.Low-luster precoat is real The floor tile precoat that example 4 prepares is applied, low-luster precoat is set on second surface.Wearing layer is set to low-luster fabric On layer.The floor tile keeps compound obtained floor tile bright in luster by using the floor tile precoat of low-luster, and three-dimensional sense is strong, no It can be reflective.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of floor tile precoat, which is characterized in that by weight, be prepared by the raw material for including following parts by weight: PVC 2~4 parts of 0.5~2 part of copolymer, stabilizer, the toughener 5 of 80~105 parts of resin, methyl methacrylate and butyl acrylate ~10 parts and 0.1~0.7 part of lubricant；
Wherein, the polyvinyl chloride resin include the first polyvinyl chloride resin that the degree of polymerization is 700~900 and the degree of polymerization be 950~1200 The weight ratio of two polyvinyl chloride resins, second polyvinyl chloride resin and first polyvinyl chloride resin is 0~20:80~100.
2. floor tile precoat according to claim 1, which is characterized in that second polyvinyl chloride resin and the first PVC tree The weight ratio of rouge is 5~15:85~95.
3. floor tile precoat according to claim 2, which is characterized in that second polyvinyl chloride resin and the first PVC tree The weight ratio of rouge is 9~11:89~91.
4. floor tile precoat according to any one of claims 1 to 3, which is characterized in that the stabilizer includes weight ratio For the epoxidized soybean oil and butanethiol tin of 0~1.0:2.0~3.0.
5. floor tile precoat according to any one of claims 1 to 3, which is characterized in that the toughener is MBS resin, Its performance parameter are as follows: content >=98.5%, impact strength >=13KJ/m3, volatile matter≤1.5%, apparent specific gravity >=0.4g/ml, Partial size is greater than 1000 μm of particle accounting≤1.0%, foreign matter≤20pcs/20g, white point≤87pcs/5000cm2。
6. floor tile precoat according to any one of claims 1 to 3, which is characterized in that the lubricant includes stearoyl- The mixture and pentaerythrite hexanedioic acid stearic acid complex ester of 2- calcium lactate and stearoyl -2- sodium lactate.
7. floor tile precoat according to any one of claims 1 to 3, which is characterized in that further include 0~0.5 part of talcum Powder.
8. floor tile precoat according to any one of claims 1 to 3, which is characterized in that further include 0.004~0.008 part Colorant.
9. a kind of floor tile characterized by comprising
Substrate layer, the substrate layer have opposite first surface and second surface, and the first surface is for being bonded floor, institute Second surface is stated equipped with lines；
Low-luster precoat, the low-luster precoat are the described in any item floor tile precoats of claim 1 to 8, institute Low-luster precoat is stated on the second surface；And
Wearing layer, the wearing layer are set on the precoat.
10. a kind of preparation method of the described in any item floor tile precoats of claim 1 to 8, which is characterized in that including walking as follows It is rapid:
Each raw material is weighed according to the raw material composition of the described in any item floor tile precoats of claim 1 to 8；
The copolymer, toughener and lubricant of polyvinyl chloride resin, stabilizer, methyl methacrylate and butyl acrylate are successively thrown Enter in the thermal agitation machine of operating, stirring makes material be warming up to 100 DEG C~110 DEG C, obtains the first mixed material；
First mixed material is transferred in cold blender, is stirred, is cooled to 70 DEG C~80 DEG C, obtains the second mixed material；
Second mixed material is squeezed out through screw rod extruder, the Parameter Conditions of the extrusion are as follows: 120 DEG C of driving screw temperature~ 140 DEG C, speed 40rpm~50rpm, obtain the first intermediate product；
Described first intermediate product are transferred to prick in turbine and are plasticized, the Parameter Conditions of the plasticizing are as follows: 135 DEG C of temperature~ 145 DEG C, revolving speed 35rpm~45rpm is to get the second intermediate product；
Thin slice will be pressed into the described second intermediate product investment calender after plasticizing, then will be cold in the cooling unit of thin slice feeding But, then by winder wind to get.
CN201711461889.3A 2017-12-28 2017-12-28 Floor tile precoat, floor tile and preparation method thereof Pending CN109971082A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107459735A (en) * 2017-08-25 2017-12-12 广州宏信塑胶工业有限公司 Environment-protective polychloroethylene material composition and its preparation method and application

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107459735A (en) * 2017-08-25 2017-12-12 广州宏信塑胶工业有限公司 Environment-protective polychloroethylene material composition and its preparation method and application

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