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Production process of glass fiber reinforced plastic pultrusion profiles

A pultrusion profile and production process technology, applied in the field of FRP pultrusion profile preparation, can solve the problems of mechanical properties to be improved, low surface hardness, poor finish, etc., and achieve the effects of light weight, long service life and good effect

Inactive Publication Date: 2017-08-04
DE RUISEN NANTONG COMPOSITE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above advantages, pultruded FRP products are widely used in chemical industry, construction, agriculture, etc., but pultruded FRP generally has the problems of low surface hardness, poor wear resistance, and poor finish, and its mechanical properties need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The present invention provides the following technical solutions: a production process of FRP pultruded profiles, comprising the following steps:

[0019] A. After mixing the alkali-free glass fiber yarn, glass fiber continuous mat and surface mat, add unsaturated polyester to fully mix;

[0020] B. Add flame retardant, polymer toughness agent and aluminum hydroxide to the mixture obtained in step A, then add it into the stirring tank for mixing and stirring, the stirring speed is 500 rpm, and the stirring time is 10min;

[0021] C, then add the mixed solution obtained in step B into the preforming mold for preforming;

[0022] D, then put the preform of step C into the molding heating mold;

[0023] E. Afterwards, under the traction of the tractor, the fiberglass pultrusion profile is obtained by continuous heating and solidification; the heating temperature is 150°C.

[0024] In this embodiment, the material components include 10 parts by weight of non-alkali glass ...

Embodiment 2

[0027] A production process of FRP pultruded profiles, comprising the following steps:

[0028] A. After mixing the alkali-free glass fiber yarn, glass fiber continuous mat and surface mat, add unsaturated polyester to fully mix;

[0029] B. Add flame retardant, polymer toughness agent and aluminum hydroxide to the mixture obtained in step A, then add it into the stirring tank for mixing and stirring, the stirring speed is 1000 rpm, and the stirring time is 20min;

[0030] C, then add the mixed solution obtained in step B into the preforming mold for preforming;

[0031] D, then put the preform of step C into the molding heating mold;

[0032] E. Afterwards, under the traction of the tractor, the fiberglass pultrusion profile is obtained by continuous heating and solidification; the heating temperature is 200°C.

[0033] In this embodiment, the material components include 20 parts by weight of non-alkali glass fiber yarn, 20 parts of glass fiber continuous mat, 10 parts of s...

Embodiment 3

[0036] A production process of FRP pultruded profiles, comprising the following steps:

[0037] A. After mixing the alkali-free glass fiber yarn, glass fiber continuous mat and surface mat, add unsaturated polyester to fully mix;

[0038] B. Add flame retardant, polymer toughness agent and aluminum hydroxide to the mixture obtained in step A, then add it into the stirring tank for mixing and stirring, the stirring speed is 600 rpm, and the stirring time is 12min;

[0039] C, then add the mixed solution obtained in step B into the preforming mold for preforming;

[0040] D, then put the preform of step C into the molding heating mold;

[0041] E. Afterwards, under the traction of the tractor, the fiberglass pultrusion profile is obtained by continuous heating and solidification; the heating temperature is 170°C.

[0042] In this embodiment, the material components include 18 parts by weight of non-alkali glass fiber yarn, 18 parts of glass fiber continuous mat, 8 parts of sur...

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Abstract

The invention discloses a production process of glass fiber reinforced plastic pultrusion profiles. The production process comprises the following steps that A, non-alkali glass fiber yarns, glass fiber continuous mats and surfacing mats are mixed, and then unsaturated polyester is added for sufficient mixing; B, a fire retardant, a high-molecular toughing agent and aluminum hydroxide are added into a mixture obtained in the step A to be sufficiently mixed; C, the mixed liquid obtained in the step B is added into a preforming die to be subjected to preforming; D, a preformed object obtained in the step C is put into a forming heating die; and E, the glass fiber reinforced plastic pultrusion profiles are obtained through heating and continuous curing forming under traction of a tractor. The production process of the glass fiber reinforced plastic pultrusion profiles is simple, and the obtained glass fiber reinforced plastic pultrusion profiles are low in weight, high in intensity, resistant to corrosion, aging, inflaming and impact, insulated and long in service life.

Description

technical field [0001] The invention relates to the technical field of preparation of FRP pultrusion profiles, in particular to a production process of FRP pultrusion profiles. Background technique [0002] FRP is fiber-reinforced plastic, which generally refers to glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix. Reinforced plastics made of glass fiber or its products are called glass fiber reinforced plastics, or glass fiber reinforced plastics, and should be distinguished from tempered glass. Due to the different types of resin used, it is called polyester FRP, epoxy FRP, and phenolic FRP. Light and hard, non-conductive, stable performance. High mechanical strength, less recycling, corrosion resistance. It can replace steel to manufacture machine parts, automobiles, ship shells, etc. [0003] Pultruded FRP is made of glass fiber as the main reinforcing material, and resin is used as a binder. It is made into a composite material throu...

Claims

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Application Information

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IPC IPC(8): B29C70/52C08L67/06C08L101/00C08K13/04C08K3/16C08K3/22C08K5/092C08K5/42C08K3/38C08K3/34C08K7/14C08K7/00
CPCB29C70/521C08K2003/166C08K2003/387C08L67/06C08L2201/02C08L101/00C08K13/04C08K3/16C08K3/2279C08K5/092C08K5/42C08K3/38C08K3/34C08K7/14C08K7/00
Inventor 周建军
Owner DE RUISEN NANTONG COMPOSITE MATERIAL CO LTD
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