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Composite material, application thereof and heat-insulation wall connector

A technology of composite materials and retention rate, which is applied in the field of polymer-based composite material preparation, can solve problems such as the optimization of mechanical properties is rarely involved, the physical properties of connectors are difficult to achieve, and the performance optimization of rod cores of connectors is rarely involved. To achieve the effect of excellent corrosion resistance

Inactive Publication Date: 2017-01-04
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 现有技术中,国内外专利都主要集中在保温连接件的外形结构的设计和具体的使用方法上,比如CN202248370U、CN204983189U、CN204715667U、CN203924408U、CN202359664U、CN201924463U、CN202644775U、CN202831363U、CN203878809U、US4829733、US5519973、 In US5671574, US6116836, and US7266931 patents, however, there is little reference to the performance optimization of the key connector core, especially the optimization of mechanical properties.
In addition, some patents have developed connectors with thermoplastic resin as the matrix resin (US5673525, US5987834, US6263638), but based on the disadvantages of the thermoplastic resin itself, it is difficult for the prepared connectors to achieve physical properties close to those of steel bars

Method used

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  • Composite material, application thereof and heat-insulation wall connector
  • Composite material, application thereof and heat-insulation wall connector
  • Composite material, application thereof and heat-insulation wall connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0092] According to one embodiment, the method for preparing a composite material includes the following steps: impregnating the reinforcing fiber material with a resin composition comprising the mold release agent, a thermosetting resin matrix and optional other additives, and performing pultrusion curing.

[0093] According to one embodiment, the method for preparing a composite material includes the following steps: injecting the resin composition comprising the mold release agent, the thermosetting resin matrix, and other optional additives into the preformed reinforcing fiber material, using a resin transfer mold Molded.

[0094] In addition to providing the formula of the high-performance composite material, the present invention also provides several better preparation methods of the above-mentioned composite material, wherein a specific process step includes the following steps:

[0095] The release agent, the thermosetting resin matrix, and other optional additives ar...

Embodiment 1

[0133] The preparation method of the composite material is as follows, and the raw materials are all in parts by weight:

[0134] 1) Pass the glass fiber yarn (4800Tex) through the creel, the glue dipping tank, the preforming mold, and finally pass through the thermoforming mold, pass the upper and lower layers of polyester surface mat through the felt guide, the preforming mold, and import Arriving and finally passing through the thermoforming mold, adjusting the count of the fiber yarn so that the glass fiber content of the final product is 80%, and the content of the resin composition in the final product is 20%;

[0135] 2) The configuration of the resin composition is carried out according to the following components: 100 parts by weight of epoxy acrylic resin, 1.0 parts by weight of a composite release agent with a pH value of 6.0, and 15 parts by weight of other auxiliary agents (comprising initiator TBPO / TBPB composite 3 parts by weight, 5 parts by weight of talcum pow...

Embodiment 2

[0140] Other operating steps are basically the same as in Example 1, except that the composite release agent consists of: 80 parts by weight of n-heptanol, methyl methacrylate-methacrylic acid-butyl methacrylate block copolymer (three kinds of The molar ratio of monomer units is: methyl methacrylate: methacrylic acid: butyl methacrylate = 2:1:1.5, number average molecular weight 35000) 22 parts by weight, phosphorylated n-decyl alcohol 3 parts by weight. The pH value of the composite release agent was tested to be 6.6, and the fraction in the resin composition was 1.2 parts by weight. The surface of the sample is always smooth during the production process, without cracks, slag and missing corners, indicating that the release agent has a good effect.

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Abstract

The invention relates to a composite material, application thereof and a heat-insulation wall connector. The composite material provided by the invention comprises resin cast and a reinforced fiber material, and meets at least one of the following mechanical properties (i), (ii), (iii), (iv) and (v): (i) the longitudinal stretching strength is greater than or equal to 740 MPa, (ii) the longitudinal tensile modulus is greater than or equal to 40 GPa, (iii) the buckling strength is greater than or equal to 900 MPa, (iv) the longitudinal bending modulus is greater than or equal to 39 GPa, and (v) the short-beam shear strength is greater than or equal to 57 MPa; and after the composite material soaks in a NaOH aqueous solution of which the temperature is 23+ / - 2 DEG C and the pH value is 12 for 3,000 hours, the retention rate of at least one of the mechanical properties (i), (ii), (iii), (iv) and (v) is greater than or equal to 80%.

Description

technical field [0001] The invention relates to the field of preparation of polymer-based composite materials, in particular to a composite material, its application and a thermal insulation wall connector. Background technique [0002] With the continuous innovation and development of the construction market, new building energy-saving wall materials have become the main wall materials for the country's development and promotion. The heat insulation material is placed in the hollow part of the wall, and various heat insulation materials are put in the air, which is a heat insulation material sandwich insulation system. Compared with the single-material exterior wall, the structure of the wall is reasonable and has a higher thermal insulation coefficient, which can better play the role of thermal insulation materials. At the same time, under the premise of meeting the load-bearing requirements, the brick wall can be appropriately thinned. Due to the outstanding advantages ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/10C08L75/06C08L67/06C08L79/08C08L53/00C08L67/00C08L91/06C08K13/04C08K7/14C08K5/05C08K3/26C08K5/06C08K3/34C08K7/10
CPCC08L63/10C08K2201/014C08L67/06C08L75/06C08L79/085C08L2205/03C08L2205/035C08L2205/16C08L53/00C08L67/00C08K13/04C08K7/14C08K5/05C08K3/34C08K2003/265C08K5/06C08K7/10C08K3/346
Inventor 李枝芳董诚
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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