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A method for suppressing migration of polyvinyl chloride leather plasticizer

A polyvinyl chloride leather, polyvinyl chloride technology, applied in the direction of chemical instruments and methods, flat products, synthetic resin layered products, etc., can solve the problems of leather surface stickiness, pollution, and easy aging of the surface, and achieve good oxidation resistance , good drapability and good lubricity

Active Publication Date: 2021-03-26
路联新材料集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride soft artificial leather has the texture of animal skin, and has excellent properties such as scratch resistance, wear resistance, acid resistance, alkali resistance, waterproof, good strength, and long service life. Some massage chairs currently use PU leather as fabrics. PU leather has poor weather resistance, short service life, and easy aging and peeling on the surface, while PVC leather is similar to PU leather in terms of scratch resistance, wear resistance and softness, and its service life is more than twice that of PU leather, and its price is lower than PU leather. , so the PU leather massage chair fabric will be gradually replaced by PVC leather, but to achieve a certain softness of PVC leather, a large amount of low-molecular plasticizers must be added, and low-molecular-weight plasticizers are easily affected by temperature and pressure. For example, when the massage chair is in use, due to the movement and pressing of the massage chair ball, it will have a continuous force on the massage chair fabric, which will increase the movement of the plasticizer molecules in the leather. It is easy to make the plasticizer molecules diffuse to the surface, causing the leather surface to be sticky, polluted, and the leather hardens, resulting in a decrease in performance; PVC film leather is often used for inkjet printing in the advertising and decoration industry, but there are also plasticizers that are easy to separate out and cause inkjet printing. The picture is not clear, the color saturation and gloss are affected, and the ink is easy to fall off. Therefore, in order to solve the problem that the plasticizer in the PVC leather is easy to migrate and precipitate, a method for inhibiting the migration of the plasticizer in the PVC leather is proposed. method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Preparation of foam layer

[0036] A. Put 100 parts of polyvinyl chloride resin into a high-speed mixer for stirring, and gradually increase the temperature. When the temperature rises to 60°C, add 100 parts of TOTM and 20 parts of PPA, and continue stirring. When the temperature rises to 105°C When adding 2 parts of starch, 40 parts of nano-calcium, 3.8 parts of powder barium zinc, 0.8 part of foam stabilizer, 5 parts of AC powder, 0.5 part of acrylic acid and 5 parts of color cake, stir evenly to obtain elastic mixture;

[0037] B. Use an internal mixer to knead the elastic mixture prepared in step A, and the kneading temperature is 150° C. to obtain polyvinyl chloride blocks;

[0038] C. Use a two-roll mill to further knead and plasticize the polyvinyl chloride block material prepared in step B. The temperature of the two-roll mill is 155° C., and the roll distance is 0.4 cm to obtain a plasticized polyvinyl chloride block material;

[0039] D. Use a filter to ...

Embodiment 2

[0050] (1) Preparation of foam layer

[0051] A. Put 100 parts of polyvinyl chloride resin into a high-speed mixer for stirring, and gradually increase the temperature. When the temperature rises to 60°C, add 100 parts of TOTM and 20 parts of PPA, and continue stirring. When the temperature rises to 110°C When adding 2 parts of starch, 40 parts of nano-calcium, 3.8 parts of powder barium zinc, 0.8 part of foam stabilizer, 5 parts of AC powder, 0.5 part of acrylic acid and 5 parts of color cake, stir evenly to obtain elastic mixture;

[0052] B. Mix the elastic mixture prepared in step A with an internal mixer, and the mixing temperature is 155° C. to obtain polyvinyl chloride blocks;

[0053] C. Use a two-roll mill to further knead and plasticize the polyvinyl chloride block material prepared in step B. The temperature of the two-roll mill is 155° C., and the roll distance is 0.4 cm to obtain a plasticized polyvinyl chloride block material;

[0054] D. Use a filter to filter...

Embodiment 3

[0065] (1) Preparation of foam layer

[0066] A. Put 100 parts of polyvinyl chloride resin into a high-speed mixer for stirring, and gradually increase the temperature. When the temperature rises to 60°C, add 100 parts of TOTM and 20 parts of PPA, and continue stirring. When the temperature rises to 115°C When adding 2 parts of starch, 40 parts of nano-calcium, 3.8 parts of powder barium zinc, 0.8 part of foam stabilizer, 5 parts of AC powder, 0.5 part of acrylic acid and 5 parts of color cake, stir evenly to obtain elastic mixture;

[0067] B. Use an internal mixer to knead the elastic mixture prepared in step A, and the kneading temperature is 160° C. to obtain polyvinyl chloride blocks;

[0068] C. Use a two-roll mill to further knead and plasticize the polyvinyl chloride block material prepared in step B. The temperature of the two-roll mill is 155° C., and the roll distance is 0.4 cm to obtain a plasticized polyvinyl chloride block material;

[0069] D. Use a filter to ...

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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PUM

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Abstract

The invention discloses the technical field of inhibition of transfer of a polyvinyl chloride leather plasticizer, particularly discloses a method for inhibiting the transfer of a polyvinyl chloride leather plasticizer. The polyvinyl chloride leather plasticizer is used for adjusting the softness and hardness of the polyvinyl chloride leather; the larger the adding amount is, the softer the polyvinyl chloride leather is, and the more elastic the polyvinyl chloride leather is; however, the plasticizer is easy to transfer to the surface of the polyvinyl chloride leather. The method has the advantages that the plasticizers with high plasticizing efficiency, difficulty in transfer, good compatibility with polyvinyl chloride resin and environment-friendly effect, such as TOTM (trioctyl trimellitate) and PPA (propylene glycol adipate), are selected, and the TOTM is used as the main plasticizer for the polyvinyl chloride resin; compared with the common DOP (dioctyl-phthalate) in the prior art, the heat-resistant property, cold-resistant property, non-volatilizing property, anti-drawing property and environment-friendly effect are realized, and the heat loss rate is low; the PPA is used asthe macromolecular plasticizer, so that the plasticizer is effectively inhibited from transferring and drawing out to the surface of the polyvinyl chloride leather; by selecting the main material, the plasticizer and other additives, and adopting the reasonable processing type, the effect of inhibiting the transfer of the polyvinyl chloride leather plasticizer is realized, and the use property ofthe polyvinyl chloride leather is effectively improved.

Description

technical field [0001] The invention relates to the technical field of inhibiting the migration of polyvinyl chloride leather plasticizers, and specifically relates to a method for inhibiting migration of polyvinyl chloride leather plasticizers. Background technique [0002] Polyvinyl chloride soft artificial leather has the texture of animal skin, and has excellent properties such as scratch resistance, wear resistance, acid resistance, alkali resistance, waterproof, good strength, and long service life. Some massage chairs currently use PU leather as fabrics. PU leather has poor weather resistance, short service life, and easy aging and peeling on the surface, while PVC leather is similar to PU leather in terms of scratch resistance, wear resistance and softness, and its service life is more than twice that of PU leather, and its price is lower than PU leather. , so the PU leather massage chair fabric will be gradually replaced by PVC leather, but to achieve a certain soft...

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 Patents(China)
IPC IPC(8): C08L27/06C08L3/02C08K13/02C08K5/12C08K5/11C08K3/26C08J9/10B32B27/30B32B27/06B32B27/18B32B27/22B32B27/20B32B27/12B32B5/02B29B7/00
CPCB29B7/005B29D7/00B32B5/18B32B5/245B32B27/065B32B27/18B32B27/20B32B27/22B32B27/304B32B2266/0235C08J9/0023C08J9/0061C08J9/0071C08J9/103C08J2327/06C08J2403/02C08K5/11C08K5/12C08K13/02C08K2003/265C08K2201/011C08L27/06C08L2201/08C08L3/02C08K3/26
Inventor 田学峰
Owner 路联新材料集团股份有限公司