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Door and window profile preparation method based on building energy-saving PVC door and window cross-linking technology

A technology for door and window profiles and building energy saving, which is applied in the field of door and window profile preparation, can solve problems such as failure of door and window performance indicators to meet usage requirements, and achieve the effects of strong tensile strength and improved service life

Inactive Publication Date: 2015-04-22
HARBIN ZHONGDA PROFILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the door and window profiles of PVC materials will be degraded, causing various performance indicators of doors and windows to fail to meet the use requirements, the invention further proposes a method for preparing door and window profiles based on building energy-saving PVC door and window crosslinking technology

Method used

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specific Embodiment approach 1

[0012] Specific embodiment one: the method for preparing door and window profiles based on building energy-saving PVC door and window crosslinking technology described in this embodiment, the preparation method is realized by the following steps:

[0013] Step 1: Using high-energy electron rays as the radiation source, co-extruding the inner and outer layers of the PVC plastic to be prepared and the aluminum lining, without changing the inner surface layer of the PVC plastic to be prepared, adding a crosslinking agent to the outer layer of the PVC plastic to be prepared, At the same time add the initiator;

[0014] Step 2: Under the action of the radiation source, the C-CL bond of PVC on the outer surface layer of the PVC plastic to be prepared is broken to form free radicals;

[0015] Step 3: Under the action of the radiation source, the free radicals produced by the crosslinking agent undergo self-polymerization, and in step 2, replace CL in the PVC long chain of the outer s...

specific Embodiment approach 2

[0018] Embodiment 2: This embodiment differs from Embodiment 1 in that the cross-linking agent added in step 1 is a multifunctional unsaturated monomer cross-linking agent, and the initiator is dicumyl peroxide. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0019] Embodiment 3: This embodiment differs from Embodiment 2 in that the cross-linking agent added in step 1 is a triallyl isocyanurate cross-linking agent, and the initiator is dicumyl peroxide. The use of triallyl isocyanurate crosslinking agent greatly strengthens various performance indicators of PVC plastics to be prepared, and the prepared PVC doors and windows have super tensile strength, surface hardness and aging resistance, and the service life is improved. above 50. Other compositions and connection methods are the same as those in the second embodiment.

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Abstract

The invention discloses a door and window profile preparation method based on a building energy-saving PVC door and window cross-linking technology and relates to a door and window profile preparation method. The problem that various performance indexes of doors and windows cannot meet the service requirements because door and window profiles of PVC materials are degraded is solved. The preparation method comprises the following steps: 1, by taking high-energy electron rays as a radiation source, performing inner and outer layer co-extrusion on to-be-prepared PVC plastics and an aluminum lining, and adding a cross-linking agent onto an outer surface layer of the to-be-prepared PVC plastics; 2, breaking C-CL bonds of the PVC on the outer surface layer of the to-be-prepared PVC plastics under the action of the radiation source, and forming free radicals; 3, carrying out an auto-polymerization reaction on the free radicals generated by the cross-linking agent under the action of the radiation source, and replacing CL in a PVC long chain of the outer surface layer of the to-be-prepared PVC plastics in the step 2 so as to form effective grafting; and 4, adjusting the intensity of the radiation source, forming a PVC-cross-linking agent-PVC long chain, and finally forming meshed distribution of the cross-linking agent branched chain. The method disclosed by the invention is used for preparing the door and window profiles.

Description

technical field [0001] The invention relates to a method for preparing door and window profiles. Background technique [0002] At present, my country's plastic-steel door and window profiles are mainly made of PVC materials, but because the doors and windows are exposed to the outside, they have experienced high temperature sunshine, rain, and severe cold weather all year round, and the PVC material door and window profiles will degrade, resulting in various performance indicators of doors and windows. Less than the requirements for use, including the mechanical properties of PVC profiles, the aging resistance of profiles, tensile strength and surface hardness. [0003] In summary, the door and window profiles of PVC materials will degrade, resulting in various performance indicators of doors and windows not meeting the requirements for use. Contents of the invention [0004] In order to solve the problem that the door and window profiles of PVC material will be degraded, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/18B29C47/02C08L27/06
Inventor 张凤兰安阔胡淼田爱军胡大忠
Owner HARBIN ZHONGDA PROFILE TECH
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