Sealing strip coating rubber and preparation method thereof, and car door sealing strip and preparation method thereof

A technology for covering rubber and sealing strips, which is applied to the preparation of door sealing strips and the door sealing strips, sealing strips covering rubber, and preparing the sealing strips covering rubber fields, which can solve the problem of not meeting the needs of customers and the cost of sealing strips Problems such as pressure and slag drop, achieve good mixing and extrusion processing performance, improve appearance performance, and excellent heat aging resistance

Active Publication Date: 2017-06-20
NUOBO RUBBER PRODION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the sealing lip parts in the automobile door frame sealing strip are sprayed or embossed to play the role of wear resistance and beautification, but as people's requirements are getting higher and higher, simple spraying or embossing can no longer Meet the needs of customers
As for the sponge rubber used as the sealing part, due to the consideration of the softness, weather resistance, tensile performance and rigidity of the sponge rubber, the specific gravity is 0.4-0.6, and the 25% tensile stress is 140Kpa-190Kpa. EPDM sponge rubber, but the sponge rubber with the above specific gravity is prone to surface bumps, surface holes and other problems that affect the appearance of the product during the foaming proces

Method used

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  • Sealing strip coating rubber and preparation method thereof, and car door sealing strip and preparation method thereof
  • Sealing strip coating rubber and preparation method thereof, and car door sealing strip and preparation method thereof
  • Sealing strip coating rubber and preparation method thereof, and car door sealing strip and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] This embodiment relates to a sealing strip coated rubber, which is specifically made of the following components by weight: EPDM K8340A: 50-70 parts, EPDM K4551A: 60-100 parts, oxidized Zinc: 5-7 parts, polyethylene glycol PEG-4000: 1 part, stearic acid: 2 parts, dispersant WB16: 1 part, anti-ultraviolet absorber: 1.4-1.6 parts, high molecular polyethylene wax: 9- 11 parts, black ointment: 4-6 parts, foaming agent AC: 0.7-09 parts, carbon black SP5000: 90-130 parts, light calcium carbonate: 40-6 parts, paraffin oil P-2286T: 30-50 parts Parts, moisture absorbent CaO: 8-12 parts, accelerator: 5-7 parts, sulfur: 1.0-1.4 parts.

[0053] Among them, the accelerator specifically includes the following components by weight: accelerator BZ-75: 1.25-1.75 parts, accelerator TRA-70: 0.5-0.9 parts, accelerator ETU-75: 0.4-0.8 parts, accelerator DTDM -80: 0.6-1.0 parts, Accelerator MBT-75: 1.3-1.7 parts.

[0054] The preparation process of the sealing strip coated rubber of the pr...

Embodiment 2

[0064] This embodiment relates to a kind of door sealing strip, such as figure 1 As shown in , it includes a mounting part 1 made of dense rubber with a built-in steel belt 2. The mounting part 1 is in an inverted "U" shape, and a seal made of sponge rubber is connected to one side of the mounting part 1. part 3 , and a cavity 4 is formed between the sealing part 3 and the installation part 1 , the cavity 4 can improve the sealing effect of the sealing part 3 . Relative to the sealing portion 3 , a lip 5 extending to the other side of the mounting portion 3 is provided on the top of the mounting portion 1 . A flocking layer 9 is provided on the outer surface of the lip 5 , and the outer surface of the sealing part 3 is coated with a coating layer 8 formed of the sealing strip coating rubber described in the first embodiment.

[0065] In this embodiment, in order to improve the clamping strength of the mounting part 1 on the car door, a plurality of tooth-shaped parts 6 arrang...

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PUM

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Abstract

The invention provides a sealing strip coating rubber and a preparation method thereof, and a car door sealing strip and a preparation method thereof. The sealing strip coating rubber is prepared from the following components parts by weight: 50-70 parts of ethylene propylene diene monomer rubber K8340A, 60-100 parts of ethylene propylene diene monomer rubber K4551A, 5-7 parts of zinc oxide, 1 part of polyethyleneglycol PEG-4000, 2 parts of stearic acid, 1 part of dispersing agent WB16, 1.4-1.6 parts of ultraviolet absorbent, 9-11 parts of high-polymer polyethylene wax, 4-6 parts of black factice, 0.7-0.9 part of foaming agent AC, 90-130 parts of carbon black SP5000, 40-6 parts of light calcium carbonate, 30-50 parts of paraffin oil P-2286T, 8-12 parts of moisture absorber CaO, 5-7 parts of accelerator and 1.0-1.4 parts of sulfur. The sealing strip coating rubber can be coated on the outer side of the sealing part in the existing car door sealing strip, and can overcome the defects in the existing gelatin-sponge-structure sealing part.

Description

technical field [0001] The invention relates to the technical field of automobile door frame sealing strips, in particular to a sealing strip coated rubber. The invention also relates to a method for preparing the sealing strip coated rubber, and a vehicle door sealing strip using the sealing strip coated rubber and a preparation method of the vehicle door sealing strip. Background technique [0002] The main function of the car door frame seal is to play the role of sealing, dustproof, waterproof, shock absorption and decoration. It is installed on the protruding sheet metal of the door frame of the car body, and passes between the door frame seal and The bonding function of the car seal acts as a seal to prevent external wind, rain and dust from invading the car, and can reduce the vibration generated by the doors, windows and other parts of the car while driving. Existing automobile door frame sealing strips generally include an installation part clamped on the body door...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L71/02C08L23/06C08L91/02C08L91/06C08K13/02C08K3/22C08K5/09C08K3/04C08K3/26C08J9/10B60J10/15B60J10/32B60J10/86
CPCC08J9/103C08L23/16C08L2203/14C08L2205/02C08L2205/025C08L2205/035C08L71/02C08L23/06C08L91/02C08L91/06C08K13/02C08K2003/2296C08K5/09C08K3/04C08K2003/265
Inventor 柳延波高丙托吕占有杨宏伟吴桂龙许志显李士鹏
Owner NUOBO RUBBER PRODION
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