High-polymerization degree polyvinyl chloride (PVC) door/window strip seal and preparation method thereof

A high degree of polymerization, door and window technology, applied in the direction of sealing devices, etc., can solve the problems of high cost, easy embrittlement, and low tensile strength of sealing strips, and achieve the effects of inhibiting photooxidation, less embrittlement, and low cost

Inactive Publication Date: 2013-08-14
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

[0004] The invention provides a high-polymerization degree PVC door and window seal and its preparation method, which solves the technical problems of high cost, easy embrittlement, and low tensile strength in existing seals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0030] PVC 100;

[0031] Plasticizer DOP 50;

[0032] Plasticizer DBP 20;

[0033] Filler light calcium carbonate 50;

[0034] Heat stabilizer tribasic lead sulfate 2.5;

[0035] heat stabilizer barium stearate 2;

[0036] Heat stabilizer lead stearate 1.5;

[0037] ACR 3;

[0038] UV absorber 0.3;

[0039] carbon black 2;

[0040] Lubricant paraffin 1.

[0041] The second step: put the above raw materials into the high mixer and mix for 3-5 minutes, so that the various ingredients are evenly dispersed;

[0042] Step 3: Put the mixed materials in the second step into the twin-screw extruder with a length-to-diameter ratio of 20:1. The temperature of the extruder is set as: Zone 1: 120-130°C, Zone 2: 130-140°C , Three zones 140-150°C, four zones 150-160°C, head body 120°C, 150°C, 150°C, 160°C, die 160°C, speed 35-40r / min.

Embodiment 2

[0044] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0045] PVC 100;

[0046] Plasticizer DOP 40;

[0047] Plasticizer DBP 30;

[0048] Filler light calcium carbonate 40;

[0049] Heat stabilizer tribasic lead sulfate 2.5;

[0050] heat stabilizer barium stearate 2;

[0051] Heat stabilizer lead stearate 1.5;

[0052] ACR 3;

[0053] UV absorber 0.3;

[0054] carbon black 3;

[0055] Lubricant paraffin 1.

[0056] The second step: put the above raw materials into the high mixer and mix for 3-5 minutes, so that the various ingredients are evenly dispersed;

[0057] Step 3: Put the mixed materials in the second step into the twin-screw extruder with a length-to-diameter ratio of 20:1. The temperature of the extruder is set as: Zone 1: 120-130°C, Zone 2: 130-140°C , Three zones 140-150°C, four zones 150-160°C, head body 120°C, 150°C, 150°C, 160°C, die 160°C, speed 35-40r / min.

Embodiment 3

[0059] Step 1: Weigh various raw materials according to the ratio of mass and number as described below

[0060] PVC 100;

[0061] Plasticizer DOP 30;

[0062] Plasticizer DBP 40;

[0063] Filler light calcium carbonate 60;

[0064] Heat stabilizer tribasic lead sulfate 2;

[0065] Heat stabilizer barium stearate 1.5;

[0066] Heat stabilizer lead stearate 2;

[0067] ACR 5;

[0068] UV absorber 0.3;

[0069]Carbon black 1.5;

[0070] Lubricant paraffin 1.5.

[0071] The second step: Put the above raw materials into the high mixer and mix for 3-5 minutes, so that the various ingredients are evenly dispersed;

[0072] Step 3: Put the mixed materials in the second step into a twin-screw extruder with a length-to-diameter ratio of 20:1. The temperature of the extruder is set as follows: Zone 1: 120-130°C, Zone 2: 130-140°C , Three zones 140-150°C, four zones 150-160°C, head body 120°C, 150°C, 150°C, 160°C, die 160°C, speed 35-40r / min.

[0073] All the components of th...

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Abstract

The invention discloses a high-polymerization degree polyvinyl chloride (PVC) door/window strip seal. The strip seal comprises the following ingredients in parts by mass: 100 parts of PVC, 40-80 parts of a plasticizer, 40-70 parts of a filler, 4-6 parts of a thermal stabilizer, 0.5-5 parts of a lubricant, 2.5-6 parts of acrylic copolymer (ACR), 0.2-1 part of an ultraviolet light absorber and 1-6 parts of carbon black. The product has a good ultraviolet light absorption effect, can inhibit photoxidation and optical ageing and is hardly embrittled; the strip seal has shore hardness of 55, the tensile strength of 9.5MPa, the elongation at break of 355% and the tear strength of 25KN/m; the strip seal is low in manufacturing cost, is cold-resistant, has the brittle temperature of -35 DEG C, can be widely used and can continuously replace a conventional material.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-polymerization degree PVC door and window seal and a preparation method thereof. Background technique [0002] With the development of social urbanization, technology, and humanization, the construction industry has developed vigorously. At the same time, door and window seals, as an indispensable part of decoration, have attracted widespread attention from consumers, but many seals are easily brittle and easy to break; and With the popularity of the concept of humanization and the formation of a new harmonious society, it is very necessary to design a high-polymerization PVC door and window seal. [0003] The existing door and window sealing strips are mainly made of aluminum alloy or polyethylene, but considering the high cost, easy embrittlement, low tensile strength, etc., the existing technology is slightly insufficient. Contents of the invention [0004] The inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/12C08K3/26C08K3/30C08K5/098C08K3/04B29C47/92E06B7/23B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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