Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite material for plate spring and preparation method thereof

A composite material and leaf spring technology, applied in the field of leaf spring production, can solve the problems of high cost, lack of precise design ability, long production cycle, etc., achieve the effect of less air bubbles, obvious weight reduction effect, and improve mechanical performance

Pending Publication Date: 2022-05-13
SHANDONG JIAOTONG UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, light truck composite leaf springs have just started in China, and few batch products have been applied to

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite material for plate spring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a kind of composite material that is used for leaf spring, comprises polyurethane matrix and glass fiber skeleton, and described polyurethane matrix comprises following components: PPG-1000 6 parts, PPG-2000 5 parts, PTMG-1000 5 parts, PEA-1000 15 parts, POL-3195 22 parts, POL-256 8 parts, H 12 35 parts of MDI, 0.5 parts of MOCA, 0.2 parts of DEAE, 0.3 parts of T-9, 3 parts of anti-aging agent 4020; the glass fiber skeleton is E glass fiber.

[0037] Composite the following steps:

[0038] S1: Mix 6 parts of PPG-1000, 8 parts of PEA-1000, and 5 parts of PTMG-1000 at a temperature of 100-120°C, dehydrate under vacuum for 0.5-1h, cool down to 50-60°C and add liquid H 12 35 parts of MDI, heat up to 60-80°C and keep warm for 2-3 hours to obtain component A;

[0039] S2: 5 parts of PPG-2000, 7 parts of PEA-1000, 22 parts of POL-3195, 8 parts of POL-256, 0.5 parts of MOCA, 0.2 parts of DEAE, 0.3 parts of T-9, 3 parts of antioxidant 4020, at 100-120 ...

Embodiment 2

[0044] This embodiment provides a composite material for leaf springs, including a polyurethane matrix and a glass fiber skeleton. The polyurethane matrix includes the following components: 6 parts of PPG-1000, 5 parts of PPG-2000, 8 parts of PTMG-1000, PEA- 1000 15 parts, POL-3195 22 parts, POL-256 8 parts, TDI 18 parts, H 12 17 parts of MDI, 0.5 parts of MOCA, 0.2 parts of DEAE, 0.3 parts of T-9, 3 parts of anti-aging agent 4020; the glass fiber skeleton is E glass fiber.

[0045] Composite the following steps:

[0046] S1: Mix 6 parts of PPG-1000, 8 parts of PEA-1000, and 8 parts of PTMG-1000 evenly at a temperature of 100-120°C, dehydrate under vacuum for 0.5-1h, cool down to 50-60°C and add liquid H 12 35 parts of MDI, heat up to 60-80°C and keep warm for 2-3 hours to obtain component A;

[0047]S2: 5 parts of PPG-2000, 7 parts of PEA-1000, 22 parts of POL-3195, 8 parts of POL-256, 0.5 parts of MOCA, 0.2 parts of DEAE, 0.3 parts of T-9, 3 parts of antioxidant 4020, at 1...

Embodiment 3

[0052] This embodiment provides a composite material for leaf springs, including a polyurethane matrix and a glass fiber skeleton. The polyurethane matrix includes the following components: 12 parts of PPG-1000, 3 parts of PPG-2000, 5 parts of PTMG-1000, PEA- 1000 20 parts, POL-3195 18 parts, POL-256 10 parts, H 12 35 parts of MDI, 0.5 parts of MOCA, 0.2 parts of DEAE, 0.3 parts of T-9, 3 parts of anti-aging agent 4020; the glass fiber skeleton is E glass fiber.

[0053] Composite the following steps:

[0054] S1: Mix 12 parts of PPG-1000, 10 parts of PEA-1000, and 5 parts of PTMG-1000 evenly at a temperature of 100-120°C, dehydrate under vacuum for 0.5-1h, cool down to 50-60°C and add liquid H 12 28 parts of MDI, heat up to 60-80°C and keep warm for 2-3 hours to obtain component A;

[0055] S2: 3 parts of PPG-2000, 10 parts of PEA-1000, 18 parts of POL-3195, 10 parts of POL-256, 0.5 parts of MOCA, 0.3 parts of DEAE, 0.5 parts of T-9, 3 parts of antioxidant 4020, at 100-120 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The preparation method comprises the following steps: S1, uniformly mixing part of polyether polyol and part of polyester polyol at the temperature of 100-120 DEG C, dehydrating for 0.5-1 hour under vacuumizing, cooling to 50-60 DEG C, adding liquid isocyanate, heating to 60-80 DEG C, and then carrying out heat preservation reaction for 2-3 hours to obtain a component A; s2, uniformly mixing the residual polyether polyol, the residual polyester polyol, a chain extender, a catalyst and an anti-aging agent at the temperature of 100-120 DEG C, dehydrating for 0.5-1 hour under vacuumizing, and cooling to 65-70 DEG C to obtain a component B; s3, mixing the component A, the component B and glass fibers at 60 DEG C, and mixing and curing the glass fibers and the polyurethane matrix solution by adopting a long glass fiber reinforced reaction injection molding process to obtain the composite material. The composite material contains few bubbles and is more stable in performance, and in addition, the composite material obtained through the proper proportion of the soft section to the hard section is high in hardness and has excellent creep resistance, impact resistance, tear resistance and fatigue resistance.

Description

technical field [0001] The invention belongs to the technical field of leaf spring production, and in particular relates to a composite material used for leaf springs and a preparation method thereof. Background technique [0002] Today, the pressure of energy demand and environmental pollution is becoming increasingly severe. The automobile industry is an important pillar industry of the national economy. The number of automobiles in my country has increased rapidly from 130 million in 2010 to 280 million in 2020, of which the number of commercial vehicles is about 33 million, accounting for 11.8%. The total amount of fuel is basically the same as the total fuel consumption of passenger cars. The application of lightweight technology for commercial vehicles can greatly reduce energy consumption and environmental pollution, and play a vital role in ensuring the security of the national energy strategy and helping the automobile industry achieve the goal of "double carbon". ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08G18/38C08G18/75C08G18/76C08L75/04C08K7/14C08J5/04
CPCC08G18/6618C08G18/4808C08G18/4854C08G18/4825C08G18/4238C08G18/4202C08G18/4018C08G18/3814C08G18/2875C08G18/7621C08G18/758C08G18/724C08J5/043C08J2375/04
Inventor 杨金猛齐立志王喆董玉康陆浩宇张云磊吴红辰郑欣雨李一宁李雯
Owner SHANDONG JIAOTONG UNIV