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PVC (polyvinyl chloride) coated fabric paste and preparation method thereof

A paste and plasticizer technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of paste agglomeration, poor paste viscosity stability, and viscosity increase, so as to ensure normal production, reduce air-conditioning energy consumption, Good viscosity stability effect

Active Publication Date: 2013-02-13
FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The viscosity stability of the currently used paste is poor, and the inorganic particles such as fillers dispersed in the paste are easy to settle. During the production process of PVC coated fabrics, the viscosity of the paste will sharply increase under the rapid shearing force of the scraper. Rising, the paste will produce agglomeration and other phenomena, which will cause uneven surface and pinholes in the prepared PVC coated fabric.
[0004] In addition, when PVC coated fabrics are used as sunshade materials such as tents, in order to avoid excessive temperature in the tents, it is often necessary to add carbon black pigments to the PVC paste used, that is, to carry out blackening treatment, in order to achieve heat insulation. However, after the blackening treatment, the PVC coated fabric completely loses its light transmittance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

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preparation example Construction

[0055] The preparation method of functional PVC paste of the present invention, it comprises the following steps:

[0056] 1) Stirring: first mix 30~70% plasticizer and liquid components except the colored paste, stir evenly at a stirring speed of 300~600 r / min, and then add solid components, with the same Stir evenly at a stirring speed, and finally add the colored slurry and the remaining plasticizer, stir evenly at the same stirring speed, and then stir at a stirring speed of 1000~1500 r / min for 15~20 min to obtain a plasticized paste;

[0057]2) Grinding: Grinding the plastisol obtained in step 1) on a three-roller grinder, the rotation speeds of the three grinding rollers are all different; each grinding roller is supplied with cooling circulating water;

[0058] 3) Degassing and aging: Degassing the plasticized paste that has been ground in step 2), and then aging it at room temperature for 24 hours to obtain a uniform functional PVC paste.

Embodiment 1

[0060] 1) First press the parts by weight to weigh the components:

[0061] PVC paste resin: 60 parts;

[0062] PVC blending resin: 40 parts;

[0063] Plasticizer: 45 parts; the plasticizer is adipate ester polyester plasticizer, dioctyl terephthalate, and diisononyl adipate, a mixture of three compounds in a weight ratio of 1:1:1 ;

[0064] 40 parts of filler; calcined kaolin modified by aluminum-titanium composite coupling agent;

[0065] The heat stabilizer is 3 parts; it is a mixture of barium zinc stabilizer and rare earth stabilizer in a weight ratio of 1:1;

[0066] The light stabilizer is 1.5 parts; it is the ultraviolet absorber UV327;

[0067] 1.5 parts of antioxidant; It is the mixing of antioxidant 1010 and antioxidant 168 in a weight ratio of 3:1;

[0068] 0.5 part of antimold and antibacterial agent; it is the mixing of two commercially available antimold and antibacterial agents in a weight ratio of 1:1;

[0069] 2 parts of fumed silica;

[0070] 5 parts ...

Embodiment 2

[0077] 1) First press the parts by weight to weigh the components:

[0078] PVC paste resin: 90 parts;

[0079] PVC blending resin: 10 parts;

[0080] 100 parts of plasticizer; Plasticizer is the mixing of adipate polyester plasticizer, dioctyl terephthalate, diisononyl adipate three compounds by weight ratio 1:1:1:

[0081] 5 parts of filler; calcined kaolin modified by aluminum-titanium composite coupling agent;

[0082] Heat stabilizer is 5 parts; It is the mixing of calcium zinc liquid stabilizer and rare earth stabilizer by weight ratio 1:1:

[0083] Light stabilizer is 1 part; it is UV absorber UV328;

[0084] 1 part of antioxidant; it is the mixing of antioxidant 1010 and antioxidant 168 in a weight ratio of 3:1.2;

[0085] 2 parts of anti-mold and antibacterial agent; it is the mixing of two commercially available anti-mold and antibacterial agents in a weight ratio of 1:1;

[0086] 1.5 parts of fumed silica;

[0087] 2 parts of colored paste; mix the toner and p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a functional PVC (polyvinyl chloride) paste. The functional PVC paste comprises the following components: PVC paste resin, PVC doped resin, a plasticizing agent, a filling agent, a heat stabilizer, a light stabilizer, an antioxidant, a mildew-proof antibacterial agent, a gas-phase silicon dioxide and the like. A preparation method of the functional PVC paste comprises the following steps of: (1) stirring: firstly mixing and stirring a part of the plasticizing agent and a liquid component uniformly, then adding a solid component, stirring uniformly, finally adding coloring stock and the remaining plasticizing agent, and stirring uniformly, so as to obtain plasticized paste; (2) grinding: grinding the plasticized paste on a three-roll grinding machine; and (3) defoaming and ageing. The paste has the advantages that the viscosity stability is good; and the paste can remain low viscosity under the action of the shearing force of a scraper in the process of producing PVC coated fabric, so that the normal production of the PVC coated fabric is guaranteed, and the surface of the prepared PVC coated fabric is smooth without the phenomena of pin holes and the like.

Description

technical field [0001] The invention relates to a PVC coating fabric paste and a preparation method thereof. Background technique [0002] At present, the preparation process of PVC coated fabrics includes lamination method and scraping method. The former is prepared by coating PVC paste on the surface of the fabric substrate, drying it and then laminating it with PVC film; It is prepared by coating PVC paste on the surface of the fabric substrate to the required thickness and then drying, plasticizing, calendering and other processes. [0003] The viscosity stability of the currently used paste is poor, and the inorganic particles such as fillers dispersed in the paste are easy to settle. During the production process of PVC coated fabrics, the viscosity of the paste will sharply increase under the rapid shearing force of the scraper. Rising, the paste will produce phenomena such as agglomeration, thereby causing phenomena such as uneven surface and existence of pinholes i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/248D06M11/79D06M11/47D06M11/82
Inventor 林生雄张宏旺黄万能蒋石生
Owner FUJIAN SIJIA ENVIRONMENTAL PROTECTION MATERIAL TECH
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