Dust-resistant weather-proof additive for processing rubber sealing strips of aluminum alloy doors and windows

A technology of rubber sealing strips and aluminum alloy doors and windows, which is applied in the field of aluminum alloy doors and windows, can solve problems such as easy dust absorption, physical and mechanical performance degradation, and cracks on the surface of sealing strips, so as to prolong the service life, improve dust resistance and weather resistance , Guarantee the effect of using quality

Inactive Publication Date: 2017-10-13
安徽兰天大诚门窗幕墙有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The small molecule plasticizer in the modified PVC material is easy to migrate to the surface layer of the product, resulting in poor elasticity of the sealing strip and hardening of the sealing strip, thereby affecting the sealing performance of aluminum alloy doors and windows
Fiber and fluff materials are easy to absorb dust, have low strength and poor sealing performance, which cannot meet the current use needs
[0003] Rubber material is currently the most widely used aluminum alloy door and window sealing strip material, and EPDM rubber sealing strips are commonly used. EPDM rubber itself has good heat resistance, corrosion resistance, water resistance, etc., but During use, due to the combined effect of external environmental factors, the physical and mechanical properties will gradually decline, and the surface of the sealing strip will have problems such as cracks, stickiness, hardening, softening, powdering, discoloration and mold, which will affect the sealing strip. quality of use

Method used

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  • Dust-resistant weather-proof additive for processing rubber sealing strips of aluminum alloy doors and windows
  • Dust-resistant weather-proof additive for processing rubber sealing strips of aluminum alloy doors and windows
  • Dust-resistant weather-proof additive for processing rubber sealing strips of aluminum alloy doors and windows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Warm up 0.5g of glass fiber powder to 115-120°C and keep grinding for 5 minutes, then add 0.05g of N-isopropylacrylamide and 0.01g of ferrocene, and continue to keep grinding at 115-120°C for 30 minutes to obtain Modified glass fiber powder;

[0018] (2) Add 0.5g of polyether modified silicone oil and 0.05g of vulcanized lard to 5g of chlorinated polyvinyl chloride, raise the temperature to 120-125°C for heat preservation and grinding for 30min, and transfer to 0-5°C to seal and stand for 2h. Then it is made into fine powder by ultrafine pulverizer to obtain modified chlorinated polyvinyl chloride;

[0019] (3) Add 2g of hydrogenated rosin pentaerythritol ester and 0.2g of polyaluminum chloride to the modified chlorinated polyvinyl chloride, heat up to a molten state and mix for 5 minutes, then add 1g of molecular sieve powder and modified glass fiber powder, fully mix to Cool down at a cooling rate of 5°C / min. After the temperature drops to 75-80°C, add 1g of poly...

Embodiment 2

[0022] (1) Warm up 1g of glass fiber powder to 115-120°C for 5 minutes, then add 0.1g of N-isopropylacrylamide and 0.01g of ferrocene, and continue to heat and grind for 30 minutes at 115-120°C. Sexual glass fiber powder;

[0023] (2) Add 1g of polyether modified silicone oil and 0.1g of vulcanized lard to 10g of chlorinated polyvinyl chloride, raise the temperature to 120-125°C for heat preservation and grinding for 1h, and transfer to 0-5°C environment to seal and stand for 2h, then It is made into fine powder by ultrafine pulverizer to obtain modified chlorinated polyvinyl chloride;

[0024] (3) Add 2g of hydrogenated rosin pentaerythritol ester and 0.3g of polyaluminum chloride to the modified chlorinated polyvinyl chloride, heat up to a molten state and mix for 10 minutes, then add 2g of molecular sieve powder and modified glass fiber powder, and fully mix to Cool down at a cooling rate of 5°C / min. After the temperature drops to 75-80°C, add 3g of polyglutamic acid and m...

Embodiment 3

[0039] The additives prepared in Example 1, Example 2, Comparative Example 1, Comparative Example 2, and Comparative Example 3 are prepared according to the ratio of raw materials described in Table 1, and rubber sealing strips of the same specifications are made through the same processing technology. The comparative example 4 of the dust-proof and weather-resistant additive measures the dust-proof and weather-resistant performance of the rubber sealing strip, and the results are shown in Table 2.

[0040] Table 1 Raw material ratio for rubber sealing strip preparation

[0041]

[0042] Table 2 Dustproof and weather resistance performance of rubber sealing strip

[0043]

[0044]

[0045] Ozone resistance test conditions: 50pphm×40℃×72h, tensile 20%;

[0046] Heat air aging test condition: 100℃×168h.

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Abstract

The invention discloses a dust-resistant weather-proof additive for processing rubber sealing strips of aluminum alloy doors and windows, relating to the technical field of the aluminum alloy doors and windows. The additive is prepared from the following raw materials in parts by weight: 5-10 parts of chlorinated polyvinyl chloride, 1-5 parts of polyglutamic acid, 1-5 parts of molecular sieve raw powder, 1-5 parts of pentaerythritol ester of hydogenated rosin, 0.5-1 part of polyether-modified silicone oil, 0.5-1 part of glass fiber powder, 0.1-0.5 part of polyaluminium chloride, 0.05-0.1 part of N-isopropylacrylamide, 0.05-0.1 part of vulcanized lard and 0.01-0.02 part of ferrocene. By using the dust-resistant weather-proof additive prepared by the invention, the dust-resistant property and the weather-proof property of the sealing strips can be obviously improved, so that the quality of the sealing strips in use is guaranteed, and the service life of the sealing strips is prolonged.

Description

Technical field: [0001] The invention relates to the technical field of aluminum alloy doors and windows, in particular to a dustproof and weatherproof additive for processing rubber sealing strips of aluminum alloy doors and windows. Background technique: [0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, stiles, and fan materials, which are widely used at present. Sealing strips are one of the main accessories of aluminum alloy doors and windows. The sealing strips on the market are mainly divided into modified PVC, rubber, fiber and fluff according to their materials. The small molecule plasticizer in the modified PVC material is easy to migrate to the surface of the product, resulting in poor elasticity of the sealing strip and hardening of the sealing strip, thereby affecting the sealing performance of aluminum alloy doors and windows. Fiber and fluff materials are easy to absorb dust, have low stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/24C08L77/04C08L93/04C08L83/12C08L91/00C08K9/04C08K7/14C08L23/16
CPCC08L27/24C08L23/16C08L2205/035C08L77/04C08L93/04C08L83/12C08L91/00C08K9/04C08K7/14
Inventor 赵辉赵俊赵开兴吴安学司家国赵源泉韩荣富
Owner 安徽兰天大诚门窗幕墙有限公司
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