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Low-contraction wear resistant layer and preparation method thereof

A wear-resistant layer and low-shrinkage technology, which is applied in the preparation of PVC wear-resistant layer, can solve the problems of high labor cost and energy consumption, complicated production process, and long turnaround time, so as to improve the appearance performance and reduce internal stress , Increase the effect of hardness

Active Publication Date: 2019-07-05
DECORIA MATERIALS JIANGSU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is not only complicated and has a long turnaround time, but also has high labor costs and energy consumption, which weakens the competitiveness of enterprises

Method used

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  • Low-contraction wear resistant layer and preparation method thereof
  • Low-contraction wear resistant layer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A low-shrinkage wear-resistant layer, comprising the following preparation raw materials by weight: 100 parts of polyvinyl chloride, 30 parts of plasticizer, 1 part of epoxy soybean oil, 2.5 parts of calcium stearate, 2 parts of zinc stearate, 0.3 parts of acrylic acid derivatives. The plasticizer is specifically dioctyl phthalate; the methacrylic acid derivative is specifically methyl methacrylate.

[0025] Using the above formula to prepare the low shrinkage wear-resistant layer, the specific method is as follows:

[0026] (1) Take each raw material of corresponding weight portion, add polyvinyl chloride, plasticizer, epoxy soybean oil, calcium stearate, zinc stearate, methacrylic acid derivative to high-speed mixer, set temperature at 100°C, mix and stir evenly at a speed of 200r / min;

[0027] (2) Start the cold mixing after reaching 100°C, unload the materials in the high-speed mixer to the cold mixer, and stir in the cold mixer for 10 minutes; unload the cold mix...

Embodiment 2

[0033] A low-shrinkage wear-resistant layer, comprising the following preparation raw materials by weight: 100 parts of polyvinyl chloride, 20 parts of plasticizer, 2 parts of epoxy soybean oil, 1 part of calcium stearate, 3 parts of zinc stearate, formazan 0.1 parts of acrylic acid derivatives. The plasticizer is specifically dioctyl adipate; the methacrylic acid derivative is specifically isobutyl methacrylate.

[0034] Using the above formula to prepare the low shrinkage wear-resistant layer, the specific method is as follows:

[0035] (1) Take each raw material of corresponding weight portion, add polyvinyl chloride, plasticizer, epoxy soybean oil, calcium stearate, zinc stearate, methacrylic acid derivative to high-speed mixer, set temperature at 105°C, mix and stir evenly at a speed of 230r / min;

[0036] (2) Start the cold mixing after reaching 105°C, unload the materials in the high-speed mixer to the cold mixer, and stir in the cold mixer for 10 minutes at the same t...

Embodiment 3

[0042] A low-shrinkage wear-resistant layer, comprising the following preparation raw materials by weight: 100 parts of polyvinyl chloride, 30 parts of plasticizer, 3 parts of epoxy soybean oil, 3 parts of calcium stearate, 1 part of zinc stearate, formazan 0.5 parts of methacrylic acid derivatives; the plasticizer is specifically dioctyl phthalate; the methacrylic acid derivatives are specifically hydroxyethyl methacrylate.

[0043] Using the above formula to prepare the low shrinkage wear-resistant layer, the specific method is as follows:

[0044] (1) Take each raw material of corresponding weight portion, add polyvinyl chloride, plasticizer, epoxy soybean oil, calcium stearate, zinc stearate, methacrylic acid derivative to high-speed mixer, set temperature at 120°C, mix and stir evenly at a speed of 250r / min;

[0045] (2) Start the cold mixing after reaching 120°C, unload the materials in the high-speed mixer to the cold mixer, and stir in the cold mixer for 10 minutes; u...

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Abstract

The invention discloses a low-contraction wear resistant layer and a preparation method thereof. The wear resistant layer is prepared from polyvinyl chloride (PVC), a plasticizer, epoxy soybean oil, calcium stearate, zinc stearate, methacrylate derivatives, and a filling material. Compared with the prior art, the wear resistant layer and the preparation method have the following advantages: (1) during the five-roller rolling process, a low draw ratio is adopted, the temperature is raised during the rolling process, the uniformity of the whole wear resistant layer is improved, and the apparentproperty is enhanced; (2) the draw ratio is reasonably adjusted during the cooling process, the internal stress between PVC molecules is reduced, and the problem of high contraction rate of the wear resistant layer is solved; (3) a tension control method is used to replace a speed control method, during the production process, the traction force on the wear resistant layer is always the same, andthe problem that the contraction ratio of the transparent sheet is not uniform is solved; and (4) the epoxy soybean oil content is reduced, the hardness of the wear resistant layer is increased, the contraction ratio is reduced, and the apparent property of the wear resistant layer is improved.

Description

technical field [0001] The invention relates to the field of preparation of a PVC wear-resistant layer, in particular to a low-shrinkage wear-resistant layer and a preparation method thereof. Background technique [0002] Plastic (PVC) flooring is a high-grade and environmentally friendly decorative material with excellent properties such as light weight, sound insulation, wear resistance, high elasticity, strong impact resistance, waterproof and moisture resistance, and has a very good market prospect in overseas developed countries. [0003] PVC flooring is mostly formed by hot pressing, and its production process mainly includes film production, wear-resistant layer production, and floor production. Among them, the wear-resistant layer production mainly includes mixing, extrusion, refining (filtering), calendering, cooling, and shrink Rolling, primary tempering, secondary tempering, bonding and many other processes. The production process is not only complicated and has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08K5/04C08K5/098C08K5/101C08K5/103B29B7/00B29C59/04
CPCB29B7/002B29C59/04C08K2201/014C08L27/06C08L91/00C08K5/04C08K5/098C08K5/101C08K5/103
Inventor 韦余康董玉娇魏燕倪清兰陆伟李进
Owner DECORIA MATERIALS JIANGSU CO LTD