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Car door-window straight-line part gland strip and preparation method

A technology for sealing strips and doors and windows, used in the automotive field, can solve problems such as cracking, aging, affecting sealing performance and shock absorption performance

Inactive Publication Date: 2012-06-27
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing strips on the linear parts of automobile doors and windows are prone to loss of elasticity, aging, cracking and other images during long-term use, which seriously affect their sealing performance and shock absorption performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1, raw materials were weighed according to the following parts by mass: EPDM rubber 9090M: 24, EPDM rubber 3072EM: 9, active zinc oxide: 2, stearic acid: 0.6, dispersant (L-24): 1.0, polyethylene glycol: 1.0, GPF grade carbon black (N650): 27, heavy calcium carbonate: 12, paraffin oil: 18, calcium oxide: 2, accelerator BZ: 0.45, accelerator M-75: 0.31, Accelerator TMTD: 0.22, accelerator PZ-80: 0.34, accelerator TDEC-70: 0.07, accelerator DTDM-80: 0.31, anti-scorch agent (CTP): 0.07, sulfur: 0.4, OBSH foaming agent (N8000W ): 1.0.

Embodiment 2

[0018] Example 2, raw materials were weighed according to the following parts by mass: EPDM rubber 9090M: 22, EPDM rubber 3072EM: 10, active zinc oxide: 1, stearic acid: 0.4, dispersant (L-24): 0.6, polyethylene glycol: 0.7, GPF grade carbon black (N650): 25, heavy calcium carbonate: 10, paraffin oil: 16, calcium oxide: 1, accelerator BZ: 0.15, accelerator M-75: 0.35, Accelerator TMTD: 0.15, accelerator PZ-80: 0.15, accelerator TDEC-70: 0.05, accelerator DTDM-80: 0.45, anti-scorch agent (CTP): 0.08, sulfur: 0.2, OBSH foaming agent (N8000W ): 0.8.

Embodiment 3

[0019] Example 3, raw materials were weighed according to the following parts by mass: EPDM rubber 9090M: 27, EPDM rubber 3072EM: 6, active zinc oxide: 3, stearic acid: 0.6, dispersant (L-24): 0.7, polyethylene glycol: 0.9, GPF grade carbon black (N650): 29, heavy calcium carbonate: 13, paraffin oil: 20, calcium oxide: 3, accelerator BZ: 0.45, accelerator M-75: 0.20, Accelerator TMTD: 0.34, accelerator PZ-80: 0.23, accelerator TDEC-70: 0.09, accelerator DTDM-80: 0.15, anti-scorch agent (CTP): 0.05, sulfur: 0.5, OBSH foaming agent (N8000W ): 1.2.

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Abstract

The invention relates to a car door-window straight-line part gland strip and a preparation method, which iare used for solving the problem that the compression permanent deformation rate of the present car door-window straight-line part gland strip is high, and adopts the technical scheme that: the gland strip is prepared by the following substances in part by weight: 22 to 27 ethylene propylenediene rubber 9090M, 6 to 10 ethylene propylene diene rubber 3072EM, 1 to 3 active zinc oxide, 0.4 to 0.8 stearic acid, 0.4 to 1.0 dispersant L-24, 0.7 to 1.1 polyethyleneglycol, 25 to 30 general purpose furnace black (GPF)-grade carbon black N650, 10 to 14 heavy calcium carbonate, 16 to 20 paraffin oil, 1 to 3 calcium oxide, 1.3 to 1.7 accelerator, 0.05 to 0.08 antiscorching agent, 0.2 to 0.6 sulfur and 0.8 to 1.2 p,p'-Oxybis(benzenesulfonyl hydrazide) N8000W. The car door-window straight-line part gland strip has good elasticity, good aging resistance, excellent ozone property, good low-temperature application property and appropriate apparent density.

Description

technical field [0001] The invention relates to a rubber product, in particular to a sealing strip used for the linear parts of automobile doors and windows and a preparation method thereof, belonging to the technical field of automobiles. Background technique [0002] The sealing strip on the linear part of the car door and window is an indispensable accessory on the car door and window. It relies on the compression deformation of the sealing strip to fill the gap between the car door and window, and plays a role of sealing and shock absorption. Car door and window sealing strips can prevent harmful substances such as wind, rain and dust from intruding into the car, reduce the vibration generated by the door, window and other parts of the car during driving, can ease the impact when the door is closed, and can also improve sound insulation and heat insulation. Effect. In addition, the sealing strips of the front and rear doors and windows of the car can prevent the noise g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L71/08C08K13/02C08K3/04C08K3/26C08K3/22C08K5/01B29C47/92C09K3/10B29C48/92
CPCB29C48/92B29C2948/926B29C2948/92704B29C2948/92895B29C2948/92923
Inventor 郝伟刚
Owner GREAT WALL MOTOR CO LTD
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