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Soundproof and smoke eliminating sealing PVC strip and preparation method therefor

A technology of sealing strip and tribasic lead sulfate, applied in the field of PVC material preparation, can solve the problems of PVC Shore hardness, low breaking strength and low elongation at break

Inactive Publication Date: 2015-09-09
苏州市德莱尔建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above technical problems, the present application provides a PVC sound-insulating and smoke-eliminating sealing strip and its preparation method, which solves the existing technical problems of PVC Shore hardness, low breaking strength and low elongation at break.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take by weighing 100 parts of PVC according to the ratio of parts by weight; 1 part of tribasic lead sulfate; 80 parts of iron oxide powder; 0.5 part of dibasic lead phosphite; 0.5 part of zinc stearate; 3 parts of organic montmorillonite; 40 parts of soybean oil; 0.5 parts of ferrocene; 2 parts of lead stearate; 8 parts of tricresyl phosphate; 0.3 parts of zinc borate; 15 parts of CPE; 50 parts of calcium carbonate; 15 parts of dioctyl sebacate; Paraffin is 1 part.

[0023] Put PVC, tribasic lead sulfate, iron oxide powder, dibasic lead phosphite and zinc stearate into the reaction kettle and heat to 40°C, stir for 5 minutes, add the remaining raw materials, the speed is 200r / min, and the temperature is 60°C , stirred for 10 min.

[0024] Put the mixed material into a twin-screw extruder for extrusion, the extrusion temperature is 100°C, 120°C, 140°C, 160°C, 180°C and 190°C, and the screw speed is 30r / min.

[0025] The oxygen index is 32%, the elongation at break is ...

Embodiment 2

[0027] Take by weight 100 parts of PVC; 3 parts of tribasic lead sulfate; 100 parts of iron oxide powder; 2.5 parts of dibasic lead phosphite; 2.5 parts of zinc stearate; 7 parts of organic montmorillonite; 60 parts of soybean oil; 2.5 parts of ferrocene; 8 parts of lead stearate; 12 parts of tricresyl phosphate; 0.7 parts of zinc borate; 25 parts of CPE; 70 parts of calcium carbonate; 35 parts of dioctyl sebacate; Paraffin is 5 parts.

[0028] Put PVC, tribasic lead sulfate, iron oxide powder, dibasic lead phosphite and zinc stearate into the reaction kettle and heat to 60°C, stir for 25 minutes, add the remaining raw materials, the speed is 400r / min, and the temperature is 80°C , stirred for 30min.

[0029] Put the mixed material into a twin-screw extruder for extrusion, the extrusion temperature is 100°C, 120°C, 140°C, 160°C, 180°C and 190°C, and the screw speed is 50r / min.

[0030] The oxygen index is 32%, the elongation at break is 290%; the tensile strength is 22MPa, a...

Embodiment 3

[0032] Weigh 100 parts of PVC according to the ratio of parts by weight; 1.5 parts of tribasic lead sulfate; 85 parts of iron oxide powder; 1 part of dibasic lead phosphite; 1 part of zinc stearate; 4 parts of organic montmorillonite; 45 parts of DOP ; 1 part of ferrocene; 3 parts of lead stearate; 9 parts of tricresyl phosphate; 0.4 parts of zinc borate; 18 parts of CPE; 55 parts of calcium carbonate; 20 parts of dioctyl sebacate; 2 parts of paraffin .

[0033] Put PVC, tribasic lead sulfate, iron oxide powder, dibasic lead phosphite and zinc stearate into the reaction kettle and heat to 45°C, stir for 10 minutes, add the remaining raw materials, the speed is 250r / min, and the temperature is 65°C , stirred for 15min.

[0034] Put the mixed material into a twin-screw extruder for extrusion, the extrusion temperature is 100°C, 120°C, 140°C, 160°C, 180°C and 190°C, and the screw speed is 35r / min.

[0035] The oxygen index is 33%, the elongation at break is 300%; the tensile st...

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Abstract

The present application discloses a soundproof and smoke eliminating sealing PVC strip and a preparation method therefor. The method comprises: weighing out the following materials in parts by weight: PVC, tribasic lead sulfate, ferric oxide powder, dibasic lead phosphite, zinc stearate, organic montmorillonite, a plasticizer, ferrocene, lead stearate, tricresyl phosphate, a flame retardant, CPE, calcium carbonate, dioctyl sebacate and paraffin; mixing the substances; extruding the mixture to perform tab-pulling and granulation. The oxygen index is 32-34%, and the elongation at break is 280-320%; the tensile strength is 20-30 MPa, and the cold resistance ensures that cracking does not occur at the temperature of minus 30 DEG C; and the Shore hardness is 58-62, the tear strength is 15-35 kN / m, and the compression set is 25-45%.

Description

technical field [0001] The application belongs to the field of PVC material preparation, and in particular relates to a PVC sound-insulating and smoke-eliminating sealing strip and a preparation method thereof. Background technique [0002] PVC sealing strip is formed by microwave vulcanization process at one time, the surface is smooth and beautiful, with good elasticity and compression deformation resistance, weather aging resistance, ozone resistance, chemical resistance and wide service temperature range (-40°C~+120°C), etc. With excellent performance, it has been widely used in manufacturing industries such as automobile doors, windows and curtain walls. Decabromodiphenyl ether and antimony trioxide are used as flame retardants, which are fully mixed and plasticized and granulated. The physical and mechanical properties of the gas pipe produced with this special material meet the PE-80 water supply pipe standard, and the antistatic performance and flame retardancy meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L91/06C08K13/02C08K3/30C08K3/22C08K3/32C08K5/098C08K3/34C08K3/38B29C47/92B29C48/92
CPCC08L27/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/014C08L2205/03C08L23/286C08L91/06C08K13/06C08K9/04C08K3/346C08K2003/3045C08K2003/2265C08K3/32C08K5/098
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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